WO2010074120A1 - 繊維強化プロピレン系樹脂組成物 - Google Patents
繊維強化プロピレン系樹脂組成物 Download PDFInfo
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- WO2010074120A1 WO2010074120A1 PCT/JP2009/071392 JP2009071392W WO2010074120A1 WO 2010074120 A1 WO2010074120 A1 WO 2010074120A1 JP 2009071392 W JP2009071392 W JP 2009071392W WO 2010074120 A1 WO2010074120 A1 WO 2010074120A1
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- fiber
- propylene
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- propylene resin
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- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- NHTMVDHEPJAVLT-UHFFFAOYSA-N Isooctane Chemical compound CC(C)CC(C)(C)C NHTMVDHEPJAVLT-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical compound OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 description 1
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- MZVQCMJNVPIDEA-UHFFFAOYSA-N [CH2]CN(CC)CC Chemical group [CH2]CN(CC)CC MZVQCMJNVPIDEA-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 125000004103 aminoalkyl group Chemical group 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 1
- 229940018557 citraconic acid Drugs 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- 239000003484 crystal nucleating agent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- IFDVQVHZEKPUSC-UHFFFAOYSA-N cyclohex-3-ene-1,2-dicarboxylic acid Chemical compound OC(=O)C1CCC=CC1C(O)=O IFDVQVHZEKPUSC-UHFFFAOYSA-N 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 229960002887 deanol Drugs 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- 150000001990 dicarboxylic acid derivatives Chemical class 0.000 description 1
- JVSWJIKNEAIKJW-UHFFFAOYSA-N dimethyl-hexane Natural products CCCCCC(C)C JVSWJIKNEAIKJW-UHFFFAOYSA-N 0.000 description 1
- 239000012972 dimethylethanolamine Substances 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003759 ester based solvent Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- UIWXSTHGICQLQT-UHFFFAOYSA-N ethenyl propanoate Chemical compound CCC(=O)OC=C UIWXSTHGICQLQT-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
- 238000010559 graft polymerization reaction Methods 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000000077 insect repellent Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- LDHQCZJRKDOVOX-IHWYPQMZSA-N isocrotonic acid Chemical compound C\C=C/C(O)=O LDHQCZJRKDOVOX-IHWYPQMZSA-N 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- WARQUFORVQESFF-UHFFFAOYSA-N isocyanatoethene Chemical compound C=CN=C=O WARQUFORVQESFF-UHFFFAOYSA-N 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000005453 ketone based solvent Substances 0.000 description 1
- 125000000400 lauroyl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- FSQQTNAZHBEJLS-UPHRSURJSA-N maleamic acid Chemical compound NC(=O)\C=C/C(O)=O FSQQTNAZHBEJLS-UPHRSURJSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- DNTMQTKDNSEIFO-UHFFFAOYSA-N n-(hydroxymethyl)-2-methylprop-2-enamide Chemical compound CC(=C)C(=O)NCO DNTMQTKDNSEIFO-UHFFFAOYSA-N 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229940096992 potassium oleate Drugs 0.000 description 1
- MLICVSDCCDDWMD-KVVVOXFISA-M potassium;(z)-octadec-9-enoate Chemical compound [K+].CCCCCCCC\C=C/CCCCCCCC([O-])=O MLICVSDCCDDWMD-KVVVOXFISA-M 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 1
- 229920001384 propylene homopolymer Polymers 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 1
- MNCGMVDMOKPCSQ-UHFFFAOYSA-M sodium;2-phenylethenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C=CC1=CC=CC=C1 MNCGMVDMOKPCSQ-UHFFFAOYSA-M 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- UFDHBDMSHIXOKF-UHFFFAOYSA-N tetrahydrophthalic acid Natural products OC(=O)C1=C(C(O)=O)CCCC1 UFDHBDMSHIXOKF-UHFFFAOYSA-N 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
- C08L23/142—Copolymers of propene at least partially crystalline copolymers of propene with other olefins
Definitions
- the present invention relates to a fiber reinforced propylene resin composition, and particularly to a fiber reinforced propylene resin composition having excellent mechanical properties.
- a composition comprising a reinforced fiber and a thermoplastic resin (hereinafter also referred to as a “fiber reinforced thermoplastic resin composition”) is lightweight and has excellent mechanical properties, so that it is used for sports equipment, aerospace applications and general industrial applications.
- Widely used in Reinforcing fibers used in these fiber-reinforced thermoplastic resin compositions reinforce molded products in various forms depending on their applications.
- These reinforcing fibers include metal fibers such as aluminum fibers and stainless fibers, organic fibers such as aramid fibers and PBO fibers, inorganic fibers such as silicon carbide fibers, and carbon fibers.
- Carbon fibers are preferred from the viewpoint of the balance between rigidity and lightness, and among them, polyacrylonitrile-based carbon fibers are suitably used.
- the content of reinforcing fibers such as carbon fibers may be increased.
- the amount of reinforcing fibers is increased, the heat containing the reinforcing fibers is increased.
- the viscosity of the plastic resin is increased, so that the moldability is deteriorated, the appearance of the molded product is deteriorated, and further, an unfilled portion of the thermoplastic resin is generated to cause a decrease in strength.
- the surface of the carbon fiber is poor in reactivity, so that sufficient interfacial adhesion with the thermoplastic resin may not be obtained. Therefore, for example, there is a method of improving the interfacial adhesion by applying a reactive functional group such as a carboxyl group, a hydroxyl group, a carbonyl group or the like to the surface of the carbon fiber to provide a reactive functional group such as a carboxyl group, a hydroxyl group, or a carbonyl group.
- a reactive functional group such as a carboxyl group, a hydroxyl group, a carbonyl group or the like
- a sizing agent is generally applied to the carbon fiber bundle for the purpose of improving the bundle convergence.
- Various compounds have been proposed as sizing agents. For example, epoxy resin, urethane resin, polyamide resin and the like.
- the fiber reinforced composite material has been required to be lightweight and economical, and a lightweight olefin resin, particularly a propylene resin has been used for the matrix resin.
- Patent Document 1 describes a sizing agent for inorganic fibers using a polypropylene resin modified with an unsaturated dicarboxylic acid or a salt thereof.
- Patent Document 2 discloses a sizing agent containing an acid-modified polypropylene resin having an acid value of 23 to 120 mgKOH / g. However, in any case, sufficient interfacial adhesion is not obtained.
- Patent Document 3 discloses a carbon fiber to which an ionomer resin is attached in an amount of 0.1 to 8% by weight.
- Patent Document 4 describes a carbon fiber to which two types of acid-modified polypropylene resins are attached in an amount of 0.1 to 8% by weight.
- Both documents aim to improve the interfacial adhesion between the carbon fiber and the matrix resin by adding a polymer having affinity for the polyolefin resin to the carbon fiber.
- the modified olefin component such as ionomer resin or self-emulsifying type polypropylene resin is mainly attached, the resin component is not sufficiently formed, and the carbon fiber is formed into a film and the interfacial adhesiveness is positive. However, the effect was insufficient to improve the temperature.
- the present invention provides a fiber reinforced propylene which can produce a molded article having excellent interfacial adhesiveness between the reinforced fiber and the propylene resin and having excellent mechanical properties when the propylene resin is used as a matrix.
- An object of the present invention is to provide a resin composition.
- a fiber-reinforced propylene resin composition comprising the following components (A) to (D), wherein the order of weight average molecular weight Mw is: component (D)> component (B)> component (C) A certain fiber-reinforced propylene resin composition.
- A Reinforcing fiber 1 to 75% by weight
- B A first propylene resin having a structural unit derived from propylene of an olefin component of 50 to 99 mol% 0.01 to 10% by weight
- C Second propylene resin containing at least a carboxylate bonded to a polymer chain 0.01 to 10% by weight
- D Third propylene resin 5 to 98.98% by weight
- the component (C) has at least a carboxylate at a concentration of 0.05 to 5 mmol equivalent in terms of the group represented by the formula (I) per gram of the resin (3)
- the fiber-reinforced propylene-based resin composition described in 1. -C ( O) -O -... Formula (I)
- 50% to 100% of the carboxylate bonded to the polymer chain of the component (C) is selected from lithium salt, potassium salt, sodium salt, calcium salt, magnesium salt, zinc salt,
- the fiber-reinforced propylene resin composition according to any one of (3) to (7), comprising 0 to 70% by weight of a propylene resin (B-2) in a range of 500,000 or less.
- the component (D) comprises 5 to 50% by weight of a propylene resin (D-1) having a carboxylic acid and / or salt group bonded to a polymer chain, and a carboxylic acid or salt group.
- the component (C) has at least a carboxylate at a concentration of 0.05 to 5 mmol equivalent in terms of the group represented by the formula (I) per gram of the resin.
- the fiber-reinforced propylene-based resin composition described in 1. -C ( O) -O -... Formula (I)
- (13) 50% to 100% of the carboxylate bonded to the polymer chain of the component (C) is selected from lithium salt, potassium salt, sodium salt, calcium salt, magnesium salt, zinc salt,
- the component (D) comprises 5 to 50% by weight of a propylene resin (D-1) having a carboxylic acid and / or salt group bonded to a polymer chain, and a carboxylic acid or salt group.
- the fiber-reinforced propylene resin composition of the present invention has a good interfacial adhesion between the reinforcing fiber and the propylene resin, and can produce a molded product having excellent mechanical properties. Moreover, since the propylene-based resin is used, a molded product having excellent lightness can be obtained.
- the fiber-reinforced propylene-based resin composition of the present invention is extremely useful for various parts and members such as automobiles, electric / electronic devices, and home appliances.
- FIG. 1 is a schematic view of a preferred embodiment (short fiber pellet) using the fiber-reinforced propylene resin composition of the present invention.
- the left figure is a sectional view in the axial direction of the short fiber pellet
- the right figure is a sectional view in a direction orthogonal to the axial direction of the short fiber pellet.
- the present invention includes at least a reinforcing fiber (A), a first propylene resin (B) having a structural unit derived from propylene of an olefin component of 50 to 99 mol%, and a carboxylate bonded to a polymer chain.
- A a reinforcing fiber
- B a first propylene resin
- 2 is a fiber-reinforced propylene resin composition comprising the propylene resin (C) 2 and the third propylene resin (D).
- the total is 100% by weight.
- the reinforcing fiber (A) is 1 to 75% by weight, preferably 5 to 65% by weight, more preferably 10 to 50% by weight. If the reinforcing fiber (A) is less than 1% by weight, the resulting molded product may have insufficient mechanical properties, and if it exceeds 75% by weight, the fluidity may be reduced during molding such as injection molding. is there.
- the first propylene resin (B) is 0.01 to 10% by weight, preferably 0.5 to 9% by weight, more preferably 1 to 8% by weight. If the first propylene-based resin (B) is less than 0.1% by weight, the affinity between the first propylene-based resin (B) and the third propylene-based resin (D) may be insufficient. If it exceeds 10% by weight, the mechanical properties of the molded product may be deteriorated.
- the second propylene resin (C) is 0.01 to 10% by weight, preferably 0.5 to 9% by weight, more preferably 1 to 8% by weight. If the second propylene resin (C) is less than 0.01% by weight, the interfacial adhesion between the reinforcing fiber and the propylene resin may be insufficient. If it exceeds 10% by weight, the mechanical properties of the molded product May be reduced.
- the third propylene-based resin (D) is 5 to 98.98% by weight, preferably 25 to 94% by weight, more preferably 50 to 88% by weight. The effect can be achieved.
- the blending amount of the first propylene resin (B) and the second propylene resin (C) is the second propylene resin with respect to 100 parts by weight of the first propylene resin (B).
- (C) It is preferably 0.3 to 45 parts by weight. It is because it becomes easy to ensure the intensity
- the second propylene resin (C) In contrast, 5 to 25 parts by weight of the second propylene resin (C), and more preferably 7 to 100 parts by weight of the second propylene resin (C) with respect to 100 parts by weight of the first propylene resin (B). 20 parts by weight.
- the amount of the second propylene-based resin (C) is less than 0.3 parts by weight, the affinity with the reinforcing fibers cannot be ensured, and the adhesive properties may be inferior.
- the amount of the second propylene-based resin (C) exceeds 45 parts by weight, the strength of the mixture itself may be lowered, and it may not be possible to maintain strong adhesive properties.
- the fiber-reinforced propylene resin composition of the present invention has a reinforcing fiber (A), a first propylene resin (B), a second propylene resin (C), and a third propylene resin (D).
- a fiber-reinforced propylene resin composition in which the order of the weight average molecular weights of the component (B), the component (C), and the component (D) is such that the component (D)> the component (B)> the component (C).
- the weight average molecular weight of the component (C) is made lower than the weight average molecular weight of the components (B) and (D) when performing molding or kneading using the resin composition of the present invention. This is because the component (C) flows most easily in the mixture of the components (A) to (D) and easily moves.
- Component (C) is modified so as to contain at least a carboxylate, and is a resin that is most likely to form an interaction with reinforcing fibers among components (B) to (D), and resin component (B ) To (D), the component (C) is efficiently arranged around the reinforcing fiber (A) in the process such as molding and kneading.
- the component (C) is easily strengthened if the order of the weight average molecular weight of the components (B) to (D) is component (D)> component (B)> component (C). It can be arranged around the fiber (A).
- the first propylene-based resin (B) has a weight average molecular weight range between the second propylene-based resin (C) and the third propylene-based resin (D). This is because the component (B) bridges the affinity between the component (C) and the component (D) to strengthen the resin component itself.
- the component (D) which is the third propylene-based resin is usually a component having the largest blending ratio among the resin components contained in the resin composition of the present invention, and so to speak, is the main component of the matrix resin. It is necessary to increase the weight average molecular weight to ensure strength.
- component (C) is a modified type and has the smallest weight average molecular weight, while component (D) does not have to be a modified type and has a large weight average molecular weight, component (C) and component can be added by adding component (B). It has the function of making the resin component containing (D) interact effectively.
- Mw (b) Difference (Mw (b) ⁇ ) between the weight average molecular weight of component (B) (hereinafter also referred to as “Mw (b)”) and the weight average molecular weight of component (C) (hereinafter also referred to as “Mw (c)”).
- Mw (c)) is preferably 1,000 or more, more preferably 3,000 or more, and further preferably 5,000 or more.
- the difference (Mw (d) ⁇ Mw (b)) between the weight average molecular weight of component (D) (hereinafter also referred to as “Mw (d)”) and Mw (b) is 1,000 or more. Is preferably 3,000 or more, more preferably 5,000 or more.
- the fiber-reinforced propylene resin composition having the above-described structure has good interfacial adhesion between the reinforcing fiber and the propylene resin, and can produce a molded product having excellent mechanical properties. Moreover, since the propylene-based resin is used, a molded product having excellent lightness can be obtained.
- the reinforcing fiber (A) used in the present invention is not particularly limited, and examples thereof include high-strength and high-modulus fibers such as carbon fiber, glass fiber, aramid fiber, alumina fiber, silicon carbide fiber, boron fiber, and metal fiber. These may be used, and these may be used alone or in combination of two or more.
- PAN-based, pitch-based and rayon-based carbon fibers are preferable from the viewpoint of improving the mechanical properties and reducing the weight of the molded product, and from the viewpoint of the balance between the strength and elastic modulus of the molded product obtained. More preferred are fibers.
- reinforcing fibers coated with a metal such as nickel, copper, or ytterbium can also be used.
- the carbon fiber has a surface oxygen concentration ratio [O / C] which is a ratio of the number of atoms of oxygen (O) and carbon (C) on the fiber surface measured by X-ray photoelectron spectroscopy (ESCA) of 0. It is preferably from 0.5 to 0.5, more preferably from 0.08 to 0.4, still more preferably from 0.1 to 0.3.
- the surface oxygen concentration ratio is 0.05 or more, the functional group amount on the surface of the carbon fiber can be secured, and a stronger adhesion to the thermoplastic resin can be obtained.
- limiting in particular in the upper limit of surface oxygen concentration ratio Generally it can be illustrated to 0.5 or less from the balance of the handleability of carbon fiber, and productivity.
- the surface oxygen concentration ratio of the carbon fiber is determined by X-ray photoelectron spectroscopy (ESCA) according to the following procedure. First, after cutting the carbon fiber bundle from which the sizing agent and the like adhering to the carbon fiber surface with a solvent was cut to 20 mm and spreading and arranging on a copper sample support base, using A1K ⁇ 1,2 as the X-ray source, The sample chamber is maintained at 1 ⁇ 10 8 Torr. The kinetic energy value (KE) of the main peak of C 1s is adjusted to 1202 eV as a peak correction value associated with charging during measurement. C 1s peak area E. Is obtained by drawing a straight base line in the range of 1191 to 1205 eV. O 1s peak area E. Is obtained by drawing a straight base line in the range of 947 to 959 eV.
- E X-ray photoelectron spectroscopy
- the surface oxygen concentration ratio [O / C] is calculated as an atomic ratio from the ratio of the O 1s peak area to the C 1s peak area using a sensitivity correction value unique to the apparatus.
- a sensitivity correction value unique to the apparatus.
- model ES-200 manufactured by Kokusai Electric Inc. is used, and the sensitivity correction value is set to 1.74.
- the means for controlling the surface oxygen concentration ratio [O / C] to 0.05 to 0.5 is not particularly limited.
- techniques such as electrolytic oxidation, chemical oxidation, and vapor phase oxidation Among these, electrolytic oxidation treatment is preferable.
- the average fiber diameter of the reinforcing fibers (A) is not particularly limited, but is preferably in the range of 1 to 20 ⁇ m, preferably in the range of 3 to 15 ⁇ m, from the viewpoint of mechanical properties and surface appearance of the obtained molded product. More preferably.
- the number of single yarns of the reinforcing fiber (A) is not particularly limited and can be used within a range of 100 to 350,000, and particularly preferably within a range of 1,000 to 250,000. . Further, from the viewpoint of productivity of the reinforcing fiber (A), those having a large number of single yarns are preferable, and it is preferable to use them within the range of 20,000 to 100,000.
- the form of the reinforcing fiber (A) used in the fiber-reinforced propylene resin composition of the present invention is not particularly limited.
- the single fiber is unidirectional. It is preferable that the arranged reinforcing fiber bundles are continuous in the length direction. In this case, it is not necessary that all the single fibers of the reinforcing fiber bundle are continuous over the entire length, and some of the single fibers may be divided in the middle. Examples of such continuous reinforcing fiber bundles include unidirectional fiber bundles, bidirectional fiber bundles, and multidirectional fiber bundles. From the viewpoint of productivity, unidirectional fiber bundles can be more preferably used. .
- the fiber-reinforced propylene resin composition of the present invention when used for compounding, injection molding, etc., chopped yarn cut to a length in the range of 1 to 30 mm from the viewpoint of handleability of the reinforcing fiber (A). It is preferable that More preferably, it is in the range of 2 to 20 mm, more preferably 3 to 10 mm.
- the reinforcing fiber (A) By adjusting the reinforcing fiber (A) to the above-mentioned length, it is possible to sufficiently enhance the feed property and handleability to the compound device and the injection molding machine.
- the first propylene resin (B) used in the present invention is a propylene resin having a structural unit derived from propylene of an olefin component of 50 to 99 mol%.
- first propylene resin (B) examples include copolymers of propylene and at least one ⁇ -olefin, conjugated diene, non-conjugated diene, and the like.
- monomer repeating unit constituting the ⁇ -olefin examples include ethylene, 1-butene, 3-methyl-1-butene, 4-methyl-1-pentene, 3-methyl-1-pentene, 4-methyl- 2-12 carbon atoms excluding propylene such as 1-hexene, 4,4 dimethyl-1-hexene, 1-nonene, 1-octene, 1-heptene, 1-hexene, 1-decene, 1-undecene, 1-dodecene, etc.
- Examples of the monomer repeating unit constituting the ⁇ -olefin, conjugated diene, and non-conjugated diene include butadiene, ethylidene norbornene, dicyclopentadiene, 1,5-hexadiene, and the other monomer repeating units. One type or two or more types can be selected.
- the skeleton structure of the first propylene-based resin (B) one or two or more random or block copolymers of propylene and the above-mentioned other monomers, or other thermoplastic monomers
- a copolymer etc. can be mentioned.
- an ethylene / propylene copolymer, a propylene / 1-butene copolymer, an ethylene / propylene / 1-butene copolymer, and the like are preferable.
- the first propylene-based resin ( B) is important to have 50 to 99 mol% of structural units derived from propylene, preferably 55 to 98 mol%, more preferably 60 to 97 mol%.
- identification of the monomer repeating unit in the propylene-based resin can be performed using a general polymer compound analysis technique such as IR, NMR, mass spectrometry, and elemental analysis.
- the first propylene-based resin (B) may include a carboxylate bonded to a polymer chain, but from the viewpoint of securing the strength of the resin itself and enhancing the adhesion with the reinforcing fiber, It is preferably unmodified.
- “substantially unmodified” means that it is desirably not modified at all, but it is within a range that does not impair the purpose even if modified, for example, the amount of modification is —C ( ⁇ O) —O. It means less than 0.05 mmol equivalent in terms of a group represented by-. Preferably it is 0.01 mmol equivalent or less, More preferably, it is 0.001 mmol equivalent or less, More preferably, it is 0.0001 mmol equivalent or less.
- the weight average molecular weight Mw of the first propylene resin (B) needs to be larger than the weight average molecular weight Mw of the second propylene resin (C).
- the weight average molecular weight Mw of one propylene resin (B) is preferably in the range of 30,000 to 500,000, and more preferably in the range of 35,000 to 450,000.
- the weight average molecular weight is measured using gel permeation chromatography (GPC).
- the first propylene-based resin (B) preferably has a MI (melt index: 230 ° C.) of 50 or more and a molecular weight distribution (Mw / Mn) of 2.5 or more.
- the upper limit of the molecular weight distribution (Mw / Mn) is not particularly limited, but is preferably 50 or less, more preferably 30 or less.
- the first propylene-based resin (B) has a weight average molecular weight Mw of 30,000 or more and 150,000 from the viewpoint of serving as an affinity bridge between the component (C) and the component (D). Less than 30 to 100% by weight of propylene resin (B-1) and 0 to 70% by weight of propylene resin (B-2) having a weight average molecular weight Mw of 150,000 to 500,000. It is preferable to have.
- the weight average molecular weight Mw of the propylene-based resin (B-1) is more preferably 35,000 or more and 140,000 or less. Further, the weight average molecular weight Mw of the propylene-based resin (B-2) is more preferably 150,000 or more and 450,000 or less.
- the weight average molecular weight Mw becomes too large, it may be difficult to achieve the above-mentioned affinity bridging, and is preferably within the above-mentioned range.
- the weight average molecular weight Mw of the (B) is a mixture of the propylene resin (B-1) and the propylene resin (B-2)
- the weight average molecular weight Mw of the (B) The arithmetic average of the weight average molecular weight Mw.
- the first propylene-based resin (B) is also modified in order to increase the affinity.
- the first propylene-based resin (B) has at least a carboxylate bonded to a polymer chain, and the amount of modification is represented by —C ( ⁇ O) —O—. It is preferably 0.05 mmol equivalent or more in terms of the group. Further, as described above, the weight average molecular weight Mw of the first propylene-based resin (B) needs to be larger than the weight average molecular weight Mw of the second propylene-based resin (C).
- the propylene-based resin (B) preferably has a weight average molecular weight Mw of more than 50,000 and 150,000 or less. More preferably, it is 60,000 to 130,000.
- Mw weight average molecular weight
- the blending amount of (B-1) and (B-2) in the first propylene resin (B) is more preferably 35 to 100% by weight of the propylene resin (B-1).
- (B-2) is 0 to 65% by weight.
- the second propylene resin (C) is a propylene resin containing at least a carboxylate bonded to a polymer chain.
- a carboxylate is contained in the propylene-based resin, it is effective for enhancing the interaction with the reinforcing fiber.
- the second propylene-based resin (C) is composed of polypropylene, ethylene / propylene copolymer, propylene / 1-butene copolymer, ethylene / propylene / 1-butene copolymer, and propylene and ⁇ -olefin.
- a monomer having a carboxylic acid group that is neutralized or not neutralized, and / or a saponified or unsaponified carboxylic acid ester Can be obtained by graft polymerization.
- the monomer repeating unit and the skeleton structure of the copolymer of propylene and ⁇ -olefin alone or in combination of two or more can be selected in the same way as the first propylene resin (B).
- a monomer having a neutralized or non-neutralized carboxylic acid group and a monomer having a saponified or unsaponified carboxylic acid ester group, for example, ethylene System unsaturated carboxylic acids and anhydrides thereof, and esters thereof, and compounds having unsaturated vinyl groups other than olefins.
- Ethylenically unsaturated carboxylic acids (meth) acrylic acid, maleic acid, fumaric acid, tetrahydrophthalic acid, itaconic acid, citraconic acid, crotonic acid, and isocrotonic acid.
- anhydrides nadic TM Examples thereof include (endocis-bicyclo [2.2.1] hept-5-ene-2,3-dicarboxylic acid), maleic anhydride, citraconic anhydride and the like.
- Monomers having unsaturated vinyl groups other than olefins include methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, n-butyl (meth) acrylate, i-butyl (meth) acrylate, tert -Butyl (meth) acrylate, n-amyl (meth) acrylate, isoamyl (meth) acrylate, n-hexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, octyl (meth) acrylate, decyl (meth) acrylate, dodecyl (Meth) acrylate, octadecyl (meth) acrylate, stearyl (meth) acrylate, tridecyl (meth) acrylate, lauroyl (meth) acrylate, cyclohexyl
- Hydroxyl group-containing vinyls epoxy group-containing vinyls such as glycidyl (meth) acrylate, methyl glycidyl (meth) acrylate, vinyl isocyanate, isopropenyl Isocyanate group-containing vinyls such as isocyanates, aromatic vinyls such as styrene, ⁇ -methylstyrene, vinyltoluene and t-butylstyrene, acrylamide, methacrylamide, N-methylolmethacrylamide, N-methylolacrylamide, diacetoneacrylamide Amides such as maleic acid amide, vinyl esters such as vinyl acetate and vinyl propionate, N, N-dimethylaminoethyl (meth) acrylate, N, N-diethylaminoethyl (methacrylate, N, N-dimethylaminopropyl) Aminoalkyl (meth) acrylates such as (meth) acrylate, N,
- Unsaturated sulfonic acids such as acrylates, styrene sulfonic acid, sodium styrene sulfonate, 2-acrylamido-2-methylpropane sulfonic acid, mono (2-methacryloyloxyethyl) acid phosphate, mono (2-acryloyloxyethyl)
- Unsaturated phosphoric acids such as acid phosphate.
- the raw material of said 2nd propylene-type resin (C) can be obtained by various methods, For example, other than ethylene-type unsaturated carboxylic acid and olefin which have propylene-type resin and unsaturated vinyl group in the organic solvent
- a method of removing a solvent after reacting with a monomer having an unsaturated vinyl group in the presence of a polymerization initiator, a carboxylic acid having an unsaturated vinyl group in a melt obtained by heating and melting a propylene-based resin and examples include a method in which a polymerization initiator is reacted under stirring, a method in which a mixture of a propylene resin, a carboxylic acid having an unsaturated vinyl group, and a polymerization initiator is supplied to an extruder and reacted while heating and kneading. be able to.
- benzoyl peroxide dichlorobenzoyl peroxide, dicumyl peroxide, di-tert-butyl peroxide, 2,5-dimethyl-2,5-di (peroxybenzoate) hexyne-3
- examples include 1,4-bis (tert-butylperoxyisopropyl) benzene. These can be used alone or in admixture of two or more.
- Organic solvents include aromatic hydrocarbons such as xylene, toluene and ethylbenzene, aliphatic hydrocarbons such as hexane, heptane, octane, decane, isooctane and isodecane, cycloaliphatic such as cyclohexane, cyclohexene, methylcyclohexane and ethylcyclohexane.
- aromatic hydrocarbons such as xylene, toluene and ethylbenzene
- aliphatic hydrocarbons such as hexane, heptane, octane, decane, isooctane and isodecane
- cycloaliphatic such as cyclohexane, cyclohexene, methylcyclohexane and ethylcyclohexane.
- Organic solvents such as hydrocarbon solvents, ethyl acetate, n-butyl acetate, cellosolve acetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, ester solvents such as 3 methoxybutyl acetate, ketone solvents such as methyl ethyl ketone and methyl isobutyl ketone
- a solvent can be used, and a mixture of two or more of these may be used.
- aromatic hydrocarbons, aliphatic hydrocarbons, and alicyclic hydrocarbons are preferable, and aliphatic hydrocarbons and alicyclic hydrocarbons are more preferably used.
- the second propylene resin (C) can be obtained by neutralizing or saponifying the raw material of the second propylene resin (C) obtained as described above. In the case of neutralization or saponification, it is easy and preferable to treat the raw material of the second propylene resin (C) as an aqueous dispersion.
- Examples of the basic substance used for neutralization or saponification of the aqueous dispersion of the raw material of the second propylene resin (C) include alkali metals such as sodium, potassium, lithium, calcium, magnesium and zinc and / or alkaline earth.
- Metals and / or other metals inorganic amines such as hydroxylamine and ammonium hydroxide, ammonia, (tri) methylamine, (tri) ethanolamine, (tri) ethylamine, dimethylethanolamine, organic amines such as morpholine, Sodium oxide, sodium peroxide, alkali metal and / or alkaline earth metal oxides and / or other metals, hydroxides, hydrides, sodium carbonate and other alkali metals and / or alkaline earth metals and / or others Mention of weak salts of metals .
- an alkali metal carboxylate such as sodium carboxylate or potassium carboxylate or ammonium carboxylate is preferred.
- 50 to 100% of the carboxylate bonded to the polymer chain of the second propylene resin (C) is selected from lithium salt, potassium salt, sodium salt, calcium salt, magnesium salt and zinc salt Or it is preferable that it is what was converted with 2 or more types of metal salts, and it is especially preferable that it is what was converted with ammonium salt.
- the degree of neutralization or saponification that is, the conversion rate of the carboxylic acid group contained in the raw material of the second propylene-based resin (C) to the above metal salt, ammonium salt, or the like depends on the stability of the aqueous dispersion and the fiber From the viewpoint of adhesiveness, it is usually 50 to 100%, preferably 70 to 100%, more preferably 85 to 100%. Therefore, it is desirable that all of the carboxylic acid groups in the second propylene-based resin (C) are neutralized or saponified by the basic substance, but some carboxylic acid groups are not neutralized or saponified. It may remain.
- a method for analyzing the salt component of the acid group as described above a method for detecting a metal species forming a salt by ICP emission analysis, an acid group using IR, NMR, mass spectrometry, elemental analysis, etc. And a method for identifying the structure of the salt.
- the conversion rate of the carboxylic acid group to a neutralized salt was determined by dissolving the propylene resin in heated toluene and titrating with a 0.1 N potassium hydroxide-ethanol standard solution to lower the acid value of the propylene resin.
- requiring from a formula and calculating in comparison with the total mole number of the original carboxylic acid group etc. are mentioned.
- Acid value (5.611 ⁇ A ⁇ F) / B (mgKOH / g)
- the acid value calculated above is converted into the number of moles of carboxylic acid groups not neutralized by the following formula.
- Number of moles of unneutralized carboxylic acid group acid value ⁇ 1000/56 (mol / g).
- the conversion ratio of the carboxylic acid group to the neutralized salt is the total number of moles (mol / g) of the carboxylic acid group calculated by separately determining the carbonyl carbon of the carboxylic acid group using IR, NMR, elemental analysis or the like. Use the following formula to calculate.
- Conversion rate% (1-r) ⁇ 100 (%) r: Number of moles of unneutralized carboxylic acid groups / total number of moles of carboxylic acid groups
- the content of the carboxylate is preferably 0.05 to 5 mmol equivalent in terms of a group represented by —C ( ⁇ O) —O— per 1 g of the second propylene resin. More preferably, it is 0.1 to 4 mmol equivalent, and still more preferably 0.3 to 3 mmol equivalent.
- the second propylene resin (C ) Is preferably 1,000 to 50,000. More preferably, it is 2,000 to 40,000, and still more preferably 5,000 to 30,000.
- the weight average molecular weight is measured using gel permeation chromatography (GPC).
- Examples of the third propylene resin (D) of the present invention include a propylene homopolymer or a copolymer of propylene and at least one ⁇ -olefin, conjugated diene, non-conjugated diene or the like.
- Examples of the monomer repeating unit constituting the ⁇ -olefin include ethylene, 1-butene, 3-methyl-1-butene, 4-methyl-1-pentene, 3-methyl-1-pentene, 4-methyl- 2-12 carbon atoms excluding propylene such as 1-hexene, 4,4 dimethyl-1-hexene, 1-nonene, 1-octene, 1-heptene, 1-hexene, 1-decene, 1-undecene, 1-dodecene, etc.
- propylene such as 1-hexene, 4,4 dimethyl-1-hexene, 1-nonene, 1-octene, 1-heptene, 1-hexene, 1-decene, 1-undecene, 1-dodecene, etc.
- Examples of the monomer repeating unit constituting the ⁇ -olefin, conjugated diene, and non-conjugated diene include butadiene, ethylidene norbornene, dicyclopentadiene, 1,5-hexadiene, and the other monomer repeating units. One type or two or more types can be selected.
- the skeleton structure of the third propylene-based resin (D) a homopolymer of propylene, one or two or more random or block copolymers of propylene and the other monomers, or other heat
- examples thereof include a copolymer with a plastic monomer.
- polypropylene, ethylene / propylene copolymer, propylene / 1-butene copolymer, ethylene / propylene / 1-butene copolymer, and the like are preferable.
- the order of the weight average molecular weight of the third propylene-based resin (D) is (D)> (B)> (C) as described above.
- the third propylene-based resin (D) plays a role as a matrix resin in the molded product obtained by molding the molding material of the present invention, so that the strength of the resin itself is required, so that the weight average molecular weight is determined from the component (B).
- (C) is important.
- the weight average molecular weight is measured using gel permeation chromatography (GPC).
- the third propylene resin (D) is preferably a modified propylene resin from the viewpoint of improving the mechanical properties of the obtained molded product.
- An acid-modified propylene resin is preferred, and a propylene resin having a carboxylic acid and / or salt group bonded to the polymer chain.
- the acid-modified propylene-based resin can be obtained by various methods.
- the acid-modified propylene-based resin can be obtained by the same method as the above-described raw material of the second propylene-based resin (C) or the production example of the second propylene-based resin (C). is there.
- the third propylene-based resin (D) is a propylene-based resin having a carboxylic acid and / or a salt thereof bonded to the polymer chain
- the mechanical properties of the resin are kept high;
- the resin (D-2) is preferably contained in an amount of 50 to 95% by weight.
- the component (D-1) is 5 to 45% by weight
- the component (D-2) is 55 to 95% by weight
- more preferably the component (D-1) is 5 to 35% by weight
- the component (D-2) ) Is 65 to 95% by weight.
- the first propylene-based resin (B) is also modified in order to increase the affinity.
- the first propylene-based resin (B) has at least a carboxylate bonded to a polymer chain, and the amount of modification is represented by —C ( ⁇ O) —O—. It is preferably 0.05 mmol equivalent or more in terms of the group.
- the first to third propylene resins are propylene resins containing at least a carboxylic acid bonded to a polymer chain and / or a salt thereof, the content of the carboxylic acid and / or the salt is 1 g of resin.
- the total amount in terms of groups represented by —C ( ⁇ O) —O—, that is, the order of millimolar equivalents of —C ( ⁇ O) —O— per gram of resin is component (C) ⁇ component (B) ⁇ It is preferable that it is a component (D). This is because the second propylene-based resin (C) to be present around the reinforcing fiber preferably has a larger amount of acid modification from the viewpoint of adhesion to the reinforcing fiber.
- the third propylene-based resin (D) has a tendency to decrease in strength because the resin itself becomes brittle and the strength tends to decrease when the acid modification amount is increased in general, from the viewpoint of resin cost. It is preferable that the amount of acid modification is small.
- the first propylene resin (B) has a smaller amount of acid modification than the second propylene resin (C) from the viewpoint of bridging with the second and third propylene resins. The amount is preferably larger than that of the propylene-based resin (D).
- the fiber-reinforced propylene resin composition of the present invention does not include a molding material obtained by adhering the component (D) to the composite having the components (A) to (C).
- the fiber-reinforced propylene resin composition of the present invention is an impact resistance improver such as an elastomer or a rubber component, and other fillers, as long as the object of the present invention is not impaired. Or may contain additives. Examples of these include inorganic fillers, flame retardants, conductivity imparting agents, crystal nucleating agents, ultraviolet absorbers, antioxidants, vibration damping agents, antibacterial agents, insect repellents, deodorants, anti-coloring agents, heat stabilizers. , Release agents, antistatic agents, plasticizers, lubricants, colorants, pigments, dyes, foaming agents, antifoaming agents, or coupling agents.
- the fiber-reinforced propylene resin composition of the present invention can be processed into a final product by various known molding methods.
- the molding method include press molding, transfer molding, injection molding, and combinations thereof.
- As a molded article it is suitable for automobile parts such as various modules such as an instrument panel, a door beam, an under cover, a lamp housing, a pedal housing, a radiator support, a spare tire cover, and a front end.
- home and office electrical product parts such as telephones, facsimiles, VTRs, copiers, televisions, microwave ovens, audio equipment, toiletries, laser discs, refrigerators, and air conditioners are also included.
- a housing used for a personal computer, a mobile phone and the like and a member for electric / electronic equipment represented by a keyboard support which is a member for supporting a keyboard inside the personal computer.
- a member for an electric / electronic device when carbon fiber having conductivity is used as the reinforcing fiber, electromagnetic shielding properties are imparted, which is more preferable.
- the first propylene-based resin (B), the second propylene-based resin (C), and the third propylene-based resin (D) are subjected to gel permeation chromatography (GPC). Measured. A GPC column packed with polystyrene cross-linked gel was used. Measurement was performed at 150 ° C. using 1,2,4-trichlorobenzene as a solvent. The molecular weight was calculated in terms of standard polystyrene.
- the organic compound elemental analysis was performed using an organic elemental analyzer 2400II (manufactured by PerkinElmer).
- ICP emission analysis was performed using ICPS-7510 (manufactured by Shimadzu Corporation).
- IR spectrum analysis was performed using IR-Prestige-21 (manufactured by Shimadzu Corporation).
- 1 H-NMR measurement and 13 C-NMR measurement were performed using a JEOL JNM-GX400 spectrometer (manufactured by JEOL Ltd.).
- the bending strength was determined according to the following criteria, and A to C were set as acceptable.
- Izod impact test of molded product obtained using fiber reinforced propylene resin composition An Izod impact test with a mold notch was performed in accordance with ASTM D256 (1993). The Izod impact strength (J / m) was measured when the thickness of the used test piece was 3.2 mm and the moisture content of the test piece was 0.1% by weight or less.
- Judgment of the Izod impact test was performed according to the following criteria, and AC was passed.
- Carbon fiber 1 Spinning, firing treatment, and surface oxidation treatment were carried out from a copolymer containing polyacrylonitrile as a main component to obtain continuous carbon fibers having a total number of 24,000 single yarns.
- the characteristics of this continuous carbon fiber were as follows.
- the surface oxygen concentration ratio was determined according to the following procedure by X-ray photoelectron spectroscopy using the carbon fiber after the surface oxidation treatment.
- the carbon fiber bundle was cut to 20 mm, spread and arranged on a copper sample support, and then A1K ⁇ 1 and 2 were used as X-ray sources, and the inside of the sample chamber was kept at 1 ⁇ 10 8 Torr.
- the kinetic energy value (KE) of the main peak of C 1s was adjusted to 1202 eV as a peak correction value associated with charging during measurement.
- C 1s peak area E It was obtained by drawing a straight base line in the range of 1191 to 1205 eV.
- O 1s peak area E As a linear base line in the range of 947 to 959 eV.
- the atomic ratio was calculated from the ratio between the O 1s peak area and the C 1s peak area using a sensitivity correction value unique to the apparatus.
- a model ES-200 manufactured by Kokusai Electric Inc. was used as the X-ray photoelectron spectroscopy apparatus, and the sensitivity correction value was set to 1.74.
- Carbon fiber 2 Spinning, firing treatment, and surface oxidation treatment were carried out from a copolymer containing polyacrylonitrile as a main component to obtain continuous carbon fibers having a total number of 24,000 single yarns.
- the characteristics of this continuous carbon fiber were as follows.
- the extruded resin mixture was cooled to 110 ° C. with a jacketed static mixer installed at the extruder mouth, and further poured into warm water at 80 ° C. to obtain an emulsion.
- the obtained emulsion had a solid content concentration of 45%.
- Example 1 A mixture of propylene resins in which the continuous carbon fiber bundle obtained in Reference Example 1 contains the first propylene resin (B-1) and the second propylene resin (C-1) prepared in Reference Example 3.
- the emulsion of PP (1) was adjusted to a solid content concentration of 27% by weight and adhered by a roller impregnation method, and then dried online at 210 ° C. for 2 minutes to remove the water, and the mixture PP (1 ) Was obtained.
- the adhesion amount was 20% by weight.
- the carbon fiber bundle obtained above was cut into 1 ⁇ 4 inch with a cartridge cutter.
- polypropylene resin (D-1) primarye
- D propylene resin
- Prime Polypro J105G resin polypropylene resin
- the carbon fiber bundle cut as above is supplied from the downstream side hopper, and kneaded sufficiently at a barrel temperature of 220 ° C. and a rotation speed of 150 rpm. Deaeration was performed from the downstream vacuum vent. The supply was adjusted by a weight feeder so that the content of carbon fiber alone was 20% by weight.
- the molten resin was discharged from a die port (diameter 5 mm), and the obtained strand was cooled and then cut with a cutter to obtain a pellet-shaped molding material (hereinafter also referred to as “short fiber pellet”).
- the component (A) was uniformly dispersed with an average fiber length of 0.3 mm, and the components (B) to (D) were uniformly mixed.
- a sectional view in the axial direction of the short fiber pellet and a sectional view in a direction orthogonal to the axial direction are shown in FIG.
- the short fiber pellets obtained in the extrusion process were subjected to characteristic evaluation test pieces (molded products) at a cylinder temperature of 220 ° C. and a mold temperature of 60 ° C. using a J350EIII type injection molding machine manufactured by Nippon Steel Works. ).
- the obtained test piece was subjected to a characteristic evaluation test after being left in a constant temperature and humidity chamber adjusted to a temperature of 23 ° C. and 50% RH for 24 hours.
- the obtained test piece for characteristic evaluation (molded product) was evaluated according to the above-described injection molded product evaluation method.
- the evaluation results are collectively shown in Table 1.
- the ratio of the carbon fiber in the obtained molded product was 20% by weight, and the average fiber length of the carbon fiber in the molded product was 0.2 mm.
- the average fiber length of the carbon fiber in the test piece was obtained as follows. That is, the molded piece was heat-treated at 500 ° C. for 60 minutes in an electric furnace to decompose and volatilize the resin. About 100 remaining carbon fibers were randomly extracted and the length was measured with a microscope. The average value of measurement length was made into the average fiber length of carbon fiber.
- Example 2 The third propylene resin (D) was mixed with 50% by weight of polypropylene resin (D-1) (Prime Polypro J105G resin manufactured by Prime Polymer Co., Ltd.) and the acid-modified propylene resin (D-2) prepared in Reference Example 15. ) Short fiber pellets were obtained and evaluated for molding in the same manner as in Example 1 except that 50% by weight of the resin was used. The characteristic evaluation results are collectively shown in Table 1.
- Example 3 Short fiber pellets were obtained and evaluated for molding in the same manner as in Example 2 except that the solid content concentration of the emulsion of the propylene-based resin mixture PP (1) was 10% by weight. The characteristic evaluation results are collectively shown in Table 1.
- Example 4 Short fiber pellets were obtained and evaluated for molding in the same manner as in Example 2 except that the solid content concentration of the emulsion of the propylene-based resin mixture PP (1) was 45% by weight. The characteristic evaluation results are collectively shown in Table 1.
- Example 5 Short fiber pellets were obtained and evaluated for molding in the same manner as in Example 2 except that the solid content concentration of 35% by weight of the emulsion of the propylene-based resin mixture PP (12) prepared in Reference Example 14 was used. The characteristic evaluation results are collectively shown in Table 1.
- Example 6 Short fiber pellets were obtained and evaluated for molding in the same manner as in Example 2 except that the solid content concentration of 27% by weight of the emulsion of the propylene-based resin mixture PP (2) prepared in Reference Example 4 was used. The characteristic evaluation results are collectively shown in Table 1.
- Example 7 Short fiber pellets were obtained and evaluated for molding in the same manner as in Example 2 except that the emulsion of the propylene resin mixture PP (3) prepared in Reference Example 5 was used. The characteristic evaluation results are collectively shown in Table 2.
- Example 8 Short fiber pellets were obtained and evaluated for molding in the same manner as in Example 2 except that the propylene resin mixture PP (4) emulsion prepared in Reference Example 6 was used. The characteristic evaluation results are collectively shown in Table 2.
- Example 9 Short fiber pellets were obtained and evaluated for molding in the same manner as in Example 2 except that the propylene resin mixture PP (5) emulsion prepared in Reference Example 7 was used. The characteristic evaluation results are collectively shown in Table 2.
- Example 10 Short fiber pellets were obtained and evaluated for molding in the same manner as in Example 2 except that the propylene resin mixture PP (6) emulsion prepared in Reference Example 8 was used. The characteristic evaluation results are collectively shown in Table 2.
- Example 11 Short fiber pellets were obtained and evaluated for molding in the same manner as in Example 2 except that the propylene resin mixture PP (7) emulsion prepared in Reference Example 9 was used. The characteristic evaluation results are collectively shown in Table 2.
- Example 12 Short fiber pellets were obtained and evaluated for molding in the same manner as in Example 2 except that the emulsion of the propylene resin mixture PP (8) prepared in Reference Example 10 was used. The characteristic evaluation results are collectively shown in Table 2.
- Example 13 Short fiber pellets were obtained and evaluated for molding in the same manner as in Example 2 except that the continuous carbon fiber obtained in Reference Example 2 was used. The characteristic evaluation results are collectively shown in Table 2.
- Example 2 The same procedure as in Example 2 was performed except that the emulsion of the propylene-based resin mixture PP (1) was attached by the roller impregnation method and then the emulsion of the same concentration was again attached to the carbon fiber bundle by the roller impregnation method. Thus, short fiber pellets were obtained and evaluated for molding. The characteristic evaluation results are collectively shown in Table 3.
- Comparative Example 1 On the other hand, in Comparative Example 1, nothing was adhered to the carbon fiber bundle, and it was impossible to produce a molding material (short fiber pellet). In Comparative Examples 2 to 5, molded articles having sufficient mechanical properties could not be obtained.
- the fiber reinforced propylene resin composition of the present invention has good interfacial adhesion between the reinforced fiber and the propylene resin
- the fiber reinforced propylene resin composition has excellent bending characteristics and impact resistance characteristics.
- the molded article is also excellent in bending characteristics and impact resistance characteristics, and is suitably used for electrical / electronic equipment, OA equipment, home appliances or automobile parts, internal members, and casings.
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Abstract
Description
特許文献1には、不飽和ジカルボン酸またはその塩で変性されたポリプロピレン系樹脂を用いた無機繊維用集束剤が記載されている。特許文献2には、酸価が23~120mgKOH/gの酸変性ポリプロピレン樹脂を含むサイジング剤が開示されている。しかしながら、いずれも充分な界面接着性は得られていない。
(1)下記成分(A)~(D)を有してなる繊維強化プロピレン系樹脂組成物であって、重量平均分子量Mwの序列が成分(D)>成分(B)>成分(C)である繊維強化プロピレン系樹脂組成物。
(A)強化繊維 1~75重量%
(B)オレフィン成分のプロピレンから導かれる構成単位が50~99モル%である第1のプロピレン系樹脂 0.01~10重量%
(C)重合体鎖に結合したカルボン酸塩を少なくとも含む第2のプロピレン系樹脂 0.01~10重量%
(D)第3のプロピレン系樹脂 5~98.98重量%
-C(=O)-O-・・・式(I)
-C(=O)-O-・・・式(I)
-C(=O)-O-・・・式(I)
[強化繊維(A)]
本発明に用いられる強化繊維(A)としては特に限定されないが、例えば、炭素繊維、ガラス繊維、アラミド繊維、アルミナ繊維、炭化珪素繊維、ボロン繊維、金属繊維などの高強度、高弾性率繊維が使用でき、これらは1種または2種以上を併用してもよい。中でも、PAN系、ピッチ系、レーヨン系などの炭素繊維が力学特性の向上、成形品の軽量化効果の観点から好ましく、得られる成形品の強度と弾性率とのバランスの観点から、PAN系炭素繊維がさらに好ましい。また、導電性を付与する目的では、ニッケルや銅やイッテルビウムなどの金属を被覆した強化繊維を用いることもできる。
本発明に用いられる第1のプロピレン系樹脂(B)は、オレフィン成分のプロピレンから導かれる構成単位が50~99モル%のプロピレン系樹脂である。
α-オレフィンを構成する単量体繰り返し単位には、例えば、エチレン、1-ブテン、3-メチル-1-ブテン、4-メチル-1-ペンテン、3-メチル-1-ペンテン、4-メチル-1-ヘキセン、4,4ジメチル-1-ヘキセン、1-ノネン、1-オクテン、1-ヘプテン、1-ヘキセン、1-デセン、1-ウンデセン、1-ドデセン等のプロピレンを除く炭素数2~12のα-オレフィン、共役ジエン、非共役ジエンを構成する単量体繰り返し単位にはブタジエン、エチリデンノルボルネン、ジシクロペンタジエン、1,5-ヘキサジエン等が挙げられ、これらその他の単量体繰り返し単位には、1種類または2種類以上を選択することができる。
第2のプロピレン系樹脂(C)は、重合体鎖に結合したカルボン酸塩を少なくとも含むプロピレン系樹脂である。プロピレン系樹脂中にカルボン酸塩が含まれると、強化繊維との相互作用を高めるうえで効果的である。
A:0.1規定水酸化カリウム-エタノール標準液使用量(ml)
F:0.1規定水酸化カリウム-エタノール標準液のファクター
B:試料採取量(g)
中和されていないカルボン酸基のモル数=酸価×1000/56(モル/g)。
カルボン酸基の中和塩への転化率は、別途IR、NMRおよび元素分析等を用いてカルボン酸基のカルボニル炭素の定量を行って算出したカルボン酸基の総モル数(モル/g)を用いて下式にて算出する。
r:中和されていないカルボン酸基のモル数/カルボン酸基の総モル数
また、強化繊維との相互作用を高める観点から、前記第2のプロピレン系樹脂(C)の重合体鎖に結合したカルボン酸塩の含有量は、第2のプロピレン系樹脂1g当たり、-C(=O)-O-で表される基換算で総量0.05~5ミリモル当量であることが好ましい。より好ましくは0.1~4ミリモル当量、さらに好ましくは0.3~3ミリモル当量である。上記のようなカルボン酸塩の含有量を分析する手法としては、ICP発光分析で塩を形成している金属種の検出を定量的に行う方法や、IR、NMRおよび元素分析等を用いてカルボン酸塩のカルボニル炭素の定量を行う方法が挙げられる。
本発明の第3のプロピレン系樹脂(D)は、プロピレンの単独重合体またはプロピレンと少なくとも1種のα-オレフィン、共役ジエン、非共役ジエンなどとの共重合体が挙げられる。
本発明の繊維強化プロピレン系樹脂組成物は、上記成分(A)~(D)以外に、本発明の目的を損なわない範囲で、エラストマーあるいはゴム成分などの耐衝撃性向上剤、他の充填材や添加剤を含有しても良い。これらの例としては、無機充填材、難燃剤、導電性付与剤、結晶核剤、紫外線吸収剤、酸化防止剤、制振剤、抗菌剤、防虫剤、防臭剤、着色防止剤、熱安定剤、離型剤、帯電防止剤、可塑剤、滑剤、着色剤、顔料、染料、発泡剤、制泡剤、あるいは、カップリング剤が挙げられる。
本発明の繊維強化プロピレン系樹脂組成物は、各種公知の成形法により最終的な形状の製品に加工できる。成形方法としてはプレス成形、トランスファー成形、射出成形や、これらの組合せ等が挙げられる。成形品としては、インストルメントパネル、ドアビーム、アンダーカバー、ランプハウジング、ペダルハウジング、ラジエータサポート、スペアタイヤカバー、フロントエンドなどの各種モジュール等の自動車部品に好適である。さらに電話、ファクシミリ、VTR、コピー機、テレビ、電子レンジ、音響機器、トイレタリー用品、レーザーディスク、冷蔵庫、エアコンなどの家庭・事務電気製品部品も挙げられる。またパーソナルコンピューター、携帯電話などに使用されるような筐体や、パーソナルコンピューターの内部でキーボードを支持する部材であるキーボード支持体に代表されるような電気・電子機器用部材なども挙げられる。このような電気・電子機器用部材では、強化繊維に導電性を有する炭素繊維を使用した場合に、電磁波シールド性が付与されるためにより好ましい。
(1)プロピレン系樹脂の重量平均分子量測定
第1のプロピレン系樹脂(B)、第2のプロピレン系樹脂(C)および第3のプロピレン系樹脂(D)をゲルパーミエーションクロマトグラフィー(GPC)にて測定した。GPCカラムにはポリスチレン架橋ゲルを充填したものを用いた。溶媒に1,2,4-トリクロロベンゼンを用い、150℃にて測定した。分子量は標準ポリスチレン換算にて算出した。
第1、第2および第3の各プロピレン系樹脂について、有機化合物元素分析、誘導結合プラズマ(ICP)発光分析、IR(赤外吸収)スペクトル分析、1H-NMR測定および13C-NMR測定を実施し、プロピレン系樹脂の含有元素量、官能基構造の同定、各帰属プロトン、カーボンのピーク強度より単量体構造の含有割合について評価を実施した。
ASTM D790(1997)に準拠し、3点曲げ試験冶具(圧子10mm、支点10mm)を用いて支持スパンを100mmに設定し、クロスヘッド速度5.3mm/分の試験条件にて曲げ強度および曲げ弾性率を測定した。試験機として、"インストロン"(登録商標)万能試験機4201型(インストロン社製)を用いた。
A:120MPa以上
B:100MPa以上120MPa未満
C:80MPa以上100MPa未満
D:80MPa未満
A:210J/m以上
B:180J/m以上210J/m未満
C:150J/m以上180J/m未満
D:150J/m未満
上記(3)のアイゾッド衝撃試験後の破断サンプルの破断面をSEM(走査型電子顕微鏡)にて観察し、強化繊維表面に樹脂成分の付着があるか否かを、任意の強化繊維を5本を選択し、目視判定にて行った。また判定は以下の基準でおこない、A~Bを合格とした。
B:強化繊維表面の50%以上90%未満の領域に樹脂の付着が認められる
C:強化繊維表面に樹脂の付着が認められるのが50%未満である
ポリアクリロニトリルを主成分とする共重合体から紡糸、焼成処理、表面酸化処理を行い、総単糸数24,000本の連続炭素繊維を得た。この連続炭素繊維の特性は次に示す通りであった。
単位長さ当たりの質量:1.6g/m
比重:1.8
表面酸素濃度比 [O/C]:0.06
引張強度:4600MPa
引張弾性率:220GPa
ポリアクリロニトリルを主成分とする共重合体から紡糸、焼成処理、表面酸化処理を行い、総単糸数24,000本の連続炭素繊維を得た。この連続炭素繊維の特性は次に示す通りであった。
単位長さ当たりの質量:1.6g/m
比重:1.8
表面酸素濃度比 [O/C]:0.12
引張強度:4600MPa
引張弾性率:220GPa
第1のプロピレン系樹脂(B)として、プロピレン・ブテン・エチレン共重合体(B-1)(プロピレンから導かれる構成単位(以下「C3」とも記載する)=66モル%、Mw=9万)91重量部、第2のプロピレン系樹脂(C-1)の原料として、無水マレイン酸変性プロピレン・エチレン共重合体(C3=98モル%、Mw=2.5万、酸含有量=0.81ミリモル当量)9重量部、界面活性剤として、オレイン酸カリウム3重量部を混合した。この混合物を2軸スクリュー押出機(池貝鉄工株式会社製、PCM-30,L/D=40)のホッパーより3000g/時間の速度で供給し、同押出機のベント部に設けた供給口より、20%の水酸化カリウム水溶液を90g/時間の割合で連続的に供給し、加熱温度210℃で連続的に押出した。押出した樹脂混合物を、同押出機口に設置したジャケット付きスタティックミキサーで110℃まで冷却し、さらに80℃の温水中に投入してエマルジョンを得た。得られたエマルジョンは固形分濃度:45%であった。
第2のプロピレン系樹脂(C-2)の原料として、無水マレイン酸変性プロピレン・エチレン重合体(C3=98モル%、Mw=0.5万、酸含有量=0.81ミリモル当量)を用いた以外は、参考例3と同様にしてエマルジョンを作製した。該エマルジョンは固形分濃度45重量%であった。
第2のプロピレン系樹脂(C-3)の原料として、無水マレイン酸変性プロピレン・エチレン重合体(C3=95モル%、Mw=2.5万、酸含有量=0.1ミリモル当量)を用いた以外は、参考例3と同様にしてエマルジョンを作製した。該エマルジョンは固形分濃度45重量%であった。
20%水酸化カリウム水溶液の供給量を90g/時間から43g/時間に変更し、第2のプロピレン系樹脂(C-4)を調製した以外は、参考例3と同様にしてエマルジョンを作製した。該エマルジョンは固形分濃度45重量%であった。
20%水酸化カリウム水溶液を20%アンモニア水に変更し、供給量を90g/時間から150g/時間に変更し、第2のプロピレン系樹脂(C-5)を調製した以外は、参考例3と同様にしてエマルジョンを作製した。該エマルジョンは固形分濃度45重量%であった。
第2のプロピレン系樹脂(C)の原料として、無水マレイン酸変性プロピレン・エチレン重合体(C-6)(C3=95モル%、Mw=4万、酸含有量=0.81ミリモル当量)を用いた以外は、参考例3と同様にしてエマルジョンを作製した。該エマルジョンは固形分濃度45重量%であった。
第1のプロピレン系樹脂(B)として、プロピレン・ブテン・エチレン共重合体(B-1)(C3=66モル%、Mw=9万)45.5重量部と、プロピレン・ブテン共重合体(B-2)(C3=81モル%、Mw=30万)45.5重量部との混合樹脂を用いた以外は、参考例3と同様にしてエマルジョンを作製した。該エマルジョンは固形分濃度45重量%であった。
第1のプロピレン系樹脂(B)として、無水マレイン酸変性プロピレン・ブテン・エチレン共重合体(B-3)(C3=66モル%、Mw=7万、酸含有量:0.81ミリモル当量)を用いた以外は、参考例3と同様にしてエマルジョンを作製した。該エマルジョンは固形分濃度45重量%であった。
無変性のプロピレン樹脂(重量平均分子量100,000)を粉砕し、平均粒径10μmのプロピレン樹脂パウダーを得た。該パウダーをn-ヘキサン中に投入し、撹拌することで無変性プロピレン樹脂の懸濁液を調製した。固形分濃度は45重量%であった。
第1のプロピレン系樹脂(B)として、第2のプロピレン系樹脂(C)の原料に用いた無水マレイン酸変性プロピレン・エチレン共重合体(B-4(C-1と同じ))(C3=98モル%、Mw=2.5万、酸含有量=0.81ミリモル当量)を用いた以外は、参考例3と同様にしてエマルジョンを作製した。該エマルジョンは固形分濃度45重量%であった。
第2のプロピレン系樹脂(C)の原料として、無水マレイン酸変性プロピレン・エチレン重合体(C-7)(C3=95モル%、Mw=20万、酸含有量=0.81ミリモル当量)を用いた以外は、参考例3と同様にしてエマルジョンを作製した。該エマルジョンは固形分濃度45重量%であった。
第1のプロピレン系樹脂(B)として、プロピレン・ブテン・エチレン共重合体(B-1)(プロピレンから導かれる構成単位(以下「C3」とも記載する)=66モル%、Mw=9万)50重量部、第2のプロピレン系樹脂(C)の原料として、無水マレイン酸変性プロピレン・エチレン共重合体(C3=98モル%、Mw=2.5万、酸含有量=0.81ミリモル当量)50重量部とを用いた以外は、参考例3と同様にしてエマルジョンを作製した。該エマルジョンは固形分濃度45重量%であった。
プロピレン重合体 99.6重量部、無水マレイン酸 0.4重量部、および重合開始剤としてパーヘキシ25B(日本油脂(株)製)0.4重量部を混合し、加熱温度160℃、2時間で変性を行って、酸変性ポリプロピレン樹脂(D-2)(Mw=40万、酸含有量=0.08ミリモル当量)得た。
参考例1で得られた連続炭素繊維束に、参考例3で調製した第1のプロピレン系樹脂(B-1)と第2のプロピレン系樹脂(C-1)が含まれるプロピレン系樹脂の混合物PP(1)のエマルジョンを固形分濃度27重量%に調整してローラー含浸法にて付着させた後、オンラインで210℃で2分間乾燥し、水分を除去してプロピレン系樹脂の混合物PP(1)が付着した炭素繊維束を得た。付着量は20重量%であった。
次に日本製鋼所(株)TEX-30α型2軸押出機(スクリュー直径30mm、L/D=32)を使用し、第3のプロピレン系樹脂(D)としてポリプロピレン樹脂(D-1)(プライムポリマー(株)製プライムポリプロJ105G樹脂)をメインホッパーから供給し、次いで、その下流のサイドホッパーから上記でカットした炭素繊維束を供給し、バレル温度220℃、回転数150rpmで充分混練し、さらに下流の真空ベントより脱気を行った。供給は、重量フィーダーにより炭素繊維のみの含有率が20重量%になるように調整した。溶融樹脂をダイス口(直径5mm)から吐出し、得られたストランドを冷却後、カッターで切断してペレット状の成形材料(以下「短繊維ペレット」とも記す。)とした。当該短繊維ペレットにおいて、成分(A)は平均繊維長0.3mmで均等に分散し、成分(B)~(D)は均一に混ざりあっていた。当該短繊維ペレットの軸心方向の断面図および軸心方向と直交する方向の断面図を、図1に示した。
第3のプロピレン系樹脂(D)に、ポリプロピレン樹脂(D-1)(プライムポリマー(株)製プライムポリプロJ105G樹脂)50重量%と、参考例15で作製した酸変性プロピレン系樹脂(D-2)50重量%とからなる樹脂を用いた以外は実施例1と同様にして短繊維ペレットを得、成形評価を行った。特性評価結果はまとめて表1に記載した。
プロピレン系樹脂の混合物PP(1)のエマルジョンの固形分濃度を10重量%としたこと以外は、実施例2と同様にして短繊維ペレットを得、成形評価を行った。特性評価結果はまとめて表1に記載した。
プロピレン系樹脂の混合物PP(1)のエマルジョンの固形分濃度を45重量%としたこと以外は、実施例2と同様にして短繊維ペレットを得、成形評価を行った。特性評価結果はまとめて表1に記載した。
参考例14で調製したプロピレン系樹脂の混合物PP(12)のエマルジョンの固形分濃度35重量%を用いたこと以外は、実施例2と同様にして短繊維ペレットを得、成形評価を行った。特性評価結果はまとめて表1に記載した。
参考例4で調製したプロピレン系樹脂の混合物PP(2)のエマルジョンの固形分濃度27重量%を用いたこと以外は、実施例2と同様にして短繊維ペレットを得、成形評価を行った。特性評価結果はまとめて表1に記載した。
参考例5で調製したプロピレン系樹脂の混合物PP(3)のエマルジョンを用いた以外は、実施例2と同様にして短繊維ペレットを得、成形評価を行った。特性評価結果はまとめて表2に記載した。
参考例6で調製したプロピレン系樹脂の混合物PP(4)のエマルジョンを用いたこと以外は、実施例2と同様にして短繊維ペレットを得、成形評価を行った。特性評価結果はまとめて表2に記載した。
参考例7で調製したプロピレン系樹脂の混合物PP(5)のエマルジョンを用いたこと以外は、実施例2と同様にして短繊維ペレットを得、成形評価を行った。特性評価結果はまとめて表2に記載した。
参考例8で調製したプロピレン系樹脂の混合物PP(6)のエマルジョンを用いたこと以外は、実施例2と同様にして短繊維ペレットを得、成形評価を行った。特性評価結果はまとめて表2に記載した。
参考例9で調製したプロピレン系樹脂の混合物PP(7)のエマルジョンを用いたこと以外は、実施例2と同様にして短繊維ペレットを得、成形評価を行った。特性評価結果はまとめて表2に記載した。
参考例10で調製したプロピレン系樹脂の混合物PP(8)のエマルジョンを用いたこと以外は、実施例2と同様にして短繊維ペレットを得、成形評価を行った。特性評価結果はまとめて表2に記載した。
参考例2で得られた連続炭素繊維を用いたこと以外は、実施例2と同様にして短繊維ペレットを得、成形評価を行った。特性評価結果はまとめて表2に記載した。
参考例1で得られた連続炭素繊維束にプロピレン系樹脂の混合物を付着させずにそのまま評価に供した。短繊維ペレット作製時に炭素繊維が毛羽立ち、これ以上プロセスを進めることができなくなった。
プロピレン系樹脂の混合物PP(1)のエマルジョンをローラー含浸法にて付着させた後に、再度炭素繊維束に同じ濃度のエマルジョンをローラー含浸法にて付着させたこと以外は、実施例2と同様にして短繊維ペレットを得、成形評価を行った。特性評価結果はまとめて表3に記載した。
参考例11で調製したプロピレン系樹脂の混合物PP(9)のエマルジョンを用いたこと以外は、実施例2と同様にして短繊維ペレットを得、成形評価を行った。特性評価結果はまとめて表3に記載した。
参考例12で調製したプロピレン系樹脂の混合物PP(10)のエマルジョンを用いたこと以外は、実施例2と同様にして短繊維ペレットを得、成形評価を行った。特性評価結果はまとめて表3に記載した。
参考例13で調製したプロピレン系樹脂の混合物PP(11)のエマルジョンを用いたこと以外は、実施例2と同様にして短繊維ペレットを得、成形評価を行った。特性評価結果はまとめて表3に記載した。
2 第1のプロピレン系樹脂(B)、第2のプロピレン系樹脂(C)および第3のプロピレン系からなる混合物
Claims (23)
- 下記成分(A)~(D)を有してなる繊維強化プロピレン系樹脂組成物であって、重量平均分子量Mwの序列が成分(D)>成分(B)>成分(C)である繊維強化プロピレン系樹脂組成物。
(A)強化繊維 1~75重量%
(B)オレフィン成分のプロピレンから導かれる構成単位が50~99モル%である第1のプロピレン系樹脂 0.01~10重量%
(C)重合体鎖に結合したカルボン酸塩を少なくとも含む第2のプロピレン系樹脂 0.01~10重量%
(D)第3のプロピレン系樹脂 5~98.98重量% - 前記成分(B)100重量部に対して、前記成分(C)が0.3~45重量部含まれる、請求項1に記載の繊維強化プロピレン系樹脂組成物。
- 前記成分(B)が、実質的に未変性のプロピレン系樹脂である、請求項1または2に記載の繊維強化プロピレン系樹脂組成物。
- 前記成分(C)が、樹脂1グラム当たり、式(I)で表される基換算で総量0.05~5ミリモル当量の濃度でカルボン酸塩を少なくとも有してなる、請求項3に記載の繊維強化プロピレン系樹脂組成物。
-C(=O)-O-・・・式(I) - 前記成分(C)の重合体鎖に結合したカルボン酸塩の50~100%が、リチウム塩、カリウム塩、ナトリウム塩、カルシウム塩、マグネシウム塩、亜鉛塩より選択される、1種または2種以上の金属塩で転化されてなるものである、請求項3または4に記載の繊維強化プロピレン系樹脂組成物。
- 前記成分(C)の重合体鎖に結合したカルボン酸塩の50~100%が、アンモニウム塩で転化されてなるものである、請求項3または4に記載の繊維強化プロピレン系樹脂組成物。
- 前記成分(C)の重量平均分子量Mwが1,000~50,000の範囲である、請求項3~6のいずれかに記載の繊維強化プロピレン系樹脂組成物。
- 前記成分(B)が、重量平均分子量Mwが30,000以上150,000未満の範囲であるプロピレン系樹脂(B-1)30~100重量%と、重量平均分子量Mwが150,000以上500,000以下の範囲であるプロピレン系樹脂(B-2)0~70重量%とを有してなる、請求項3~7のいずれかに記載の繊維強化プロピレン系樹脂組成物。
- 前記成分(D)が、重合体鎖に結合したカルボン酸および/またはその塩の基を有してなる、請求項3~8のいずれかに記載の繊維強化プロピレン系樹脂組成物。
- 前記成分(D)が、重合体鎖に結合したカルボン酸および/またはその塩の基を有するプロピレン系樹脂(D-1)5~50重量%と、カルボン酸またはその塩の基を有しないプロピレン系樹脂(D-2)50~95重量%とを有してなる、請求項9に記載の繊維強化プロピレン系樹脂組成物。
- 前記成分(B)が、重合体鎖に結合したカルボン酸塩を少なくとも含むプロピレン系樹脂である、請求項1または2に記載の繊維強化プロピレン系樹脂組成物。
- 前記成分(C)が、樹脂1グラム当たり、式(I)で表される基換算で総量0.05~5ミリモル当量の濃度でカルボン酸塩を少なくとも有してなる、請求項11に記載の繊維強化プロピレン系樹脂組成物。
-C(=O)-O-・・・式(I) - 前記成分(C)の重合体鎖に結合したカルボン酸塩の50~100%が、リチウム塩、カリウム塩、ナトリウム塩、カルシウム塩、マグネシウム塩、亜鉛塩より選択される、1種または2種以上の金属塩で転化されてなるものである、請求項11または12に記載の繊維強化プロピレン系樹脂組成物。
- 前記成分(C)の重合体鎖に結合したカルボン酸塩の50~100%が、アンモニウム塩で転化されてなるものである、請求項11または12に記載の繊維強化プロピレン系樹脂組成物。
- 前記成分(C)の重量平均分子量Mwが1,000~50,000の範囲である、請求項11~14のいずれかに記載の繊維強化プロピレン系樹脂組成物。
- 前記成分(B)が、重量平均分子量Mwが50,000以上150,000未満の範囲であるプロピレン系樹脂(B-1)30~100重量%と、重量平均分子量Mwが150,000以上500,000以下の範囲であるプロピレン系樹脂(B-2)0~70重量%とを有してなる、請求項11~15のいずれかに記載の繊維強化プロピレン系樹脂組成物。
- 前記成分(D)が、重合体鎖に結合したカルボン酸および/またはその塩の基を有してなる、請求項11~16のいずれかに記載の繊維強化プロピレン系樹脂組成物。
- 前記成分(D)が、重合体鎖に結合したカルボン酸および/またはその塩の基を有するプロピレン系樹脂(D-1)5~50重量%と、カルボン酸またはその塩の基を有しないプロピレン系樹脂(D-2)50~95重量%とを有してなる、請求項17に記載の繊維強化プロピレン系樹脂組成物。
- カルボン酸および/またはその塩の基の、樹脂1グラム当たり、式(I)で表される基換算でのミリモル当量の序列が、成分(C)≧成分(B)≧成分(D)である、請求項17または18に記載の繊維強化プロピレン系樹脂組成物。
-C(=O)-O-・・・式(I) - 前記成分(A)の強化繊維が、炭素繊維である、請求項1~19のいずれかに記載の繊維強化プロピレン系樹脂組成物。
- 前記炭素繊維のX線光電子分光法(ESCA)で測定される表面酸素濃度比(O/C)が0.05~0.5である、請求項20に記載の繊維強化プロピレン系樹脂組成物。
- 前記成分(A)の強化繊維が20,000~100,000本の単繊維からなる繊維束である、請求項1~21のいずれかに記載の繊維強化プロピレン系樹脂組成物。
- 前記成分(A)の強化繊維が繊維長1~30mmのチョップド糸である、請求項1~22のいずれかに記載の繊維強化プロピレン系樹脂組成物。
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US10550253B2 (en) | 2015-05-22 | 2020-02-04 | Borealis Ag | Polypropylene—carbon fiber composite |
JP2018172809A (ja) * | 2017-03-31 | 2018-11-08 | 三井化学株式会社 | 強化繊維束、成型材料及び成形体 |
WO2020221764A1 (de) | 2019-04-29 | 2020-11-05 | Ineos Styrolution Group Gmbh | Polymere zusammensetzungen enthaltend ein teilkristallines polymer und verfahren zu deren herstellung |
WO2022129016A1 (de) | 2020-12-16 | 2022-06-23 | Ineos Styrolution Group Gmbh | Füllstoff-haltige, mit kontinuierlicher faser verstärkte thermoplastische polymer-verbundwerkstoffe mit geringer oberflächenwelligkeit |
WO2022129045A1 (de) | 2020-12-16 | 2022-06-23 | Ineos Styrolution Group Gmbh | Verfahren zur herstellung eines faserverstärkten verbundwerkstoffs enthaltend ein thermoplastisches polymer |
Also Published As
Publication number | Publication date |
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CN102257061A (zh) | 2011-11-23 |
TWI532767B (zh) | 2016-05-11 |
EP2371897B1 (en) | 2014-04-09 |
US20110263778A1 (en) | 2011-10-27 |
JP5773654B2 (ja) | 2015-09-02 |
KR101604882B1 (ko) | 2016-03-18 |
TW201035183A (en) | 2010-10-01 |
JPWO2010074120A1 (ja) | 2012-06-21 |
EP2371897A1 (en) | 2011-10-05 |
US8530565B2 (en) | 2013-09-10 |
CN102257061B (zh) | 2014-04-30 |
EP2371897A4 (en) | 2012-06-27 |
KR20110111281A (ko) | 2011-10-10 |
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