CN112375363B - Glass fiber reinforced polycarbonate composition and preparation method and application thereof - Google Patents
Glass fiber reinforced polycarbonate composition and preparation method and application thereof Download PDFInfo
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- CN112375363B CN112375363B CN202011228480.9A CN202011228480A CN112375363B CN 112375363 B CN112375363 B CN 112375363B CN 202011228480 A CN202011228480 A CN 202011228480A CN 112375363 B CN112375363 B CN 112375363B
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- glass fiber
- fiber reinforced
- reinforced polycarbonate
- polycarbonate composition
- polyurethane
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- 239000003365 glass fiber Substances 0.000 title claims abstract description 109
- 239000004417 polycarbonate Substances 0.000 title claims abstract description 86
- 229920000515 polycarbonate Polymers 0.000 title claims abstract description 86
- 239000000203 mixture Substances 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000004814 polyurethane Substances 0.000 claims abstract description 45
- 229920002635 polyurethane Polymers 0.000 claims abstract description 44
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 43
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000004945 silicone rubber Substances 0.000 claims abstract description 37
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000012745 toughening agent Substances 0.000 claims abstract description 16
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims abstract description 15
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 15
- 239000000314 lubricant Substances 0.000 claims abstract description 13
- 229920001971 elastomer Polymers 0.000 claims description 27
- 239000005060 rubber Substances 0.000 claims description 26
- 238000001746 injection moulding Methods 0.000 claims description 18
- 238000001125 extrusion Methods 0.000 claims description 17
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 16
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 14
- 239000003921 oil Substances 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 2
- 229920000578 graft copolymer Polymers 0.000 claims description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 2
- 229920002545 silicone oil Polymers 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 34
- 238000005452 bending Methods 0.000 abstract description 21
- 230000008569 process Effects 0.000 abstract description 12
- 239000000463 material Substances 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 18
- 239000002245 particle Substances 0.000 description 11
- 238000012545 processing Methods 0.000 description 10
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- 230000007547 defect Effects 0.000 description 6
- 238000011161 development Methods 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 5
- 239000000945 filler Substances 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002195 synergetic effect Effects 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- 239000006057 Non-nutritive feed additive Substances 0.000 description 3
- 229920006351 engineering plastic Polymers 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000005191 phase separation Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000003242 anti bacterial agent Substances 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000007720 emulsion polymerization reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- KTZVZZJJVJQZHV-UHFFFAOYSA-N 1-chloro-4-ethenylbenzene Chemical compound ClC1=CC=C(C=C)C=C1 KTZVZZJJVJQZHV-UHFFFAOYSA-N 0.000 description 1
- HIDBROSJWZYGSZ-UHFFFAOYSA-N 1-phenylpyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C1=CC=CC=C1 HIDBROSJWZYGSZ-UHFFFAOYSA-N 0.000 description 1
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 229920003244 diene elastomer Polymers 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 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
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000013538 functional additive Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 239000002608 ionic liquid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000005543 nano-size silicon particle Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- SOGFHWHHBILCSX-UHFFFAOYSA-J prop-2-enoate silicon(4+) Chemical compound [Si+4].[O-]C(=O)C=C.[O-]C(=O)C=C.[O-]C(=O)C=C.[O-]C(=O)C=C SOGFHWHHBILCSX-UHFFFAOYSA-J 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 230000009044 synergistic interaction Effects 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- -1 vinyl aromatic compound Chemical class 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/06—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
- C08J5/08—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials glass fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2351/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2351/04—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2355/00—Characterised by the use of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08J2323/00 - C08J2353/00
- C08J2355/02—Acrylonitrile-Butadiene-Styrene [ABS] polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2383/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2455/00—Characterised by the use of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08J2423/00 - C08J2453/00
- C08J2455/02—Acrylonitrile-Butadiene-Styrene [ABS] polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2469/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/524—Esters of phosphorous acids, e.g. of H3PO3
- C08K5/526—Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a glass fiber reinforced polycarbonate composition, a preparation method and application thereof. The composition comprises polycarbonate, ABS, glass fiber, acrylic shell silicone rubber, polyurethane, a toughening agent, an antioxidant, a lubricant and the like. The glass fiber reinforced polycarbonate composition provided by the invention improves gloss by adding the acrylic shell silicone rubber and polyurethane, gives the glass fiber reinforced polycarbonate composition a better matte effect, and can meet the requirements of various processes on gloss; while maintaining high bending toughness.
Description
Technical Field
The invention belongs to the field of engineering plastics, and particularly relates to a glass fiber reinforced polycarbonate composition, and a preparation method and application thereof.
Background
The PCABS is a traditional high-performance alloy, has the beneficial characteristics of high surface glossiness, good toughness, good processing fluidity and the like, and is applied to various fields, in particular to the technical fields of engineering plastics in the fields of electronic and electric appliances, transportation, building materials and the like. With the development of the industry, the requirements on materials are higher and higher. The modified polycarbonate and the alloy thereof are enhanced by the glass fiber, so that the material has higher strength, rigidity, high temperature resistance and insulativity, is a modified product with wide application, and accords with the development trend of light weight and thin wall of various industries. Besides the high-performance development requirements such as high rigidity and high modulus required for materials, the materials are required to have certain visual sense, particularly in the design of shells of electric appliances and electronic portable products, the matte technology of the materials can improve the visual comfort of the materials in the use process, for example, the shells of household electric appliances, the frames and the rear shells of PADs and the like, and in view of improvement of visual comfort, enhancement of hand feeling, convenience of post-treatment and the like, the glass fiber reinforced polycarbonate material with the appropriate matte effect is one of key factors for design optimization, so that the development of the glass fiber reinforced polycarbonate with the matte effect has wide application prospects in different industries.
The currently used matte technologies include the following:
1) inorganic materials such as nano silicon dioxide are added, and by utilizing the incompatibility and the difficult wettability between the surface of the filler and matrix resin, the filler can migrate in the processing process to form an uneven surface, so that a matte effect is generated; CN201410177444.2 discloses PCABS that achieves matte effect by adding ACS and nanosilica.
2) Rubber with high content, especially rubber with large particle size or certain crosslinking degree is added, phase separation occurs between the rubber and a resin matrix in the processing process, and the rough effect is formed on the surface of the material due to the micro shrinkage of the rubber to generate the matte effect;
3) epoxy substances are added, and compatibility between ABS and PC resin is reduced by introducing epoxy groups, so that the glossiness of the surface of the material is reduced, and a matte effect is generated; cn201810442932.x discloses a PCABS that achieves a matte effect by adding an epoxy and mica powder.
4) The surface of the material can have certain roughness through the grain design of the injection mold, so that the matte effect is realized.
The matte technology has certain limitations, for example, the addition of the filler can cause inconsistency of a continuous phase of a matrix, and other properties such as mechanical property, appearance and the like are easy to cause, especially hidden danger of a weld line in the processing process; the addition of a large amount of rubber and epoxy can greatly influence the fluidity of resin and reduce the rigidity of the material, so that the application of the material is limited to a certain extent, and particularly, the lower fluidity can generate larger defects under the development trend of the thin-walled industry; the dependence on the die design on the processing conditions of the material is strong, and the applicability is not wide.
Therefore, the development of the glass fiber reinforced polycarbonate which has the advantages of matte, bending toughness and easy processing has important research significance and economic value.
Disclosure of Invention
The invention aims to overcome the defects or shortcomings that the glass fiber reinforced polycarbonate in the prior art is difficult to give consideration to matte, bending toughness and dependence on processing conditions, and provides a glass fiber reinforced polycarbonate composition. According to the invention, through the synergistic interaction of the acrylic shell silicone rubber and the polyurethane, the bending toughness of the glass fiber reinforced polycarbonate can be greatly improved, and a satisfactory matte effect can be realized in the processes of injection molding and extrusion.
The invention also aims to provide a preparation method of the glass fiber reinforced polycarbonate composition.
The invention also aims to provide application of the glass fiber reinforced polycarbonate composition in preparing electric or electronic carrying products.
In order to achieve the purpose, the invention adopts the following technical scheme:
the glass fiber reinforced polycarbonate composition comprises the following components in parts by weight:
the diameter of the glass fiber is 8-15 mu m;
the rubber D50 of the acrylic shell-type silicone rubber is not less than 350 nm.
The glass fiber can realize the reinforcing effect, the acrylic shell silicone rubber and Polycarbonate (PC) have better compatibility, and Polyurethane (PU) has the shape memory function; according to the invention, the acrylic shell type silicon rubber and polyurethane are added into the glass fiber reinforced polycarbonate, so that the glass fiber reinforced polycarbonate has higher bending toughness and better matte effect.
The acrylic shell silicone rubber and the PC phase in the glass fiber reinforced polycarbonate phase have better compatibility tendency, and the addition of the acrylic shell silicone rubber with a certain particle size can partially reduce the glossiness of the glass fiber reinforced polycarbonate and realize a weak matte effect; the compatibility between the polycarbonate and other components can be adjusted by adding the polyurethane, the roughness of the surface of the composition can be properly increased by adding the glass fiber with a certain diameter, and the micro-shrinkage effect of rubber particles in the composition is more obvious by adding the polyurethane and the glass fiber, so that the glass fiber, the acrylic shell silicone rubber and the polyurethane have a better synergistic effect on the reduction of the gloss, and the glass fiber reinforced polycarbonate has a more advantageous matte effect.
In addition, the addition of the glass fiber can reinforce the system and improve the toughness of the material; the toughness of the system is improved by adding the acrylic shell silicone rubber, but the flexural modulus is slightly reduced; the polyurethane has good fluidity, the toughness and the flexural modulus of the system are improved by adding the polyurethane, and the glass fiber reinforced polycarbonate composition provided by the invention has good bending toughness and high flexural modulus through the synergistic cooperation of the glass fiber, the acrylic shell silicone rubber and the polyurethane.
The glass fiber reinforced polycarbonate composition provided by the invention has the bending modulus of more than 7000MPa, is bent continuously, has the injection molding glossiness of less than 15 and the extrusion glossiness of less than 20, and can meet the matte effect requirements of different processing technologies (extrusion, injection molding and the like).
Preferably, the glass fiber reinforced polycarbonate comprises the following components in parts by weight:
polycarbonates, ABS, fiberglass, toughening agents, antioxidants and lubricants conventionally used in the art to prepare polycarbonate compositions may be used in the present invention.
Preferably, the weight average molecular weight of the polycarbonate is 32000-60000, and the content of terminal hydroxyl groups is less than 100 ppm.
The content of terminal hydroxyl groups was measured by the following method: preparing a clear solution with the concentration (mass concentration) of 1% from a test sample with a specific content, washing with neutral ethanol, adding a quantitative phenolphthalein indicator, titrating with a 0.5mol/L hydrochloric acid solution until the red color disappears, and obtaining the content of the terminal hydroxyl according to the consumption of the hydrochloric acid.
ABS is an acrylonitrile-butadiene-styrene copolymer, which is generally prepared by bulk polymerization, emulsion polymerization, and bulk-suspension polymerization, and can be used in the present invention.
Preferably, the ABS contains not less than 17% (e.g., 17-40%) acrylonitrile and not less than 12% (e.g., 12-45%) rubber.
Preferably, the glass fiber is a chopped glass fiber subjected to soaking treatment, the diameter of the chopped glass fiber is 5-20 mu m, and the length of the chopped glass fiber is 1-10 mm.
The infiltration treatment can avoid bonding among strands in the winding process of the glass fiber precursor, protect the glass fiber from abrasion in the manufacturing process of the glass fiber, endow the glass fiber with bundling property, short cutting property and dispersity, improve the compatibility and interface bonding force between the glass fiber and resin, eliminate static on the surface of the glass fiber, ensure the smooth production and further processing of the glass fiber, and keep the glass fiber reinforced product to have ideal physical and chemical properties, mechanical properties, electrical properties, ageing resistance and the like. Commercially available chopped glass fibers are typically subjected to a sizing treatment.
Preferably, the silicone rubber content of the acrylic shell-type silicone rubber is more than 10%.
Preferably, the diameter of the glass fiber is 10-13 μm.
Preferably, the rubber D50 of the acrylic shell-type silicone rubber is 800-1000 nm.
Preferably, the acrylic shell-type silicone rubber is one or two of S-2130 or S-2100.
Preferably, the Tg temperature of the polyurethane is lower than-30 ℃, the refractive index is 1.52, the oil absorption value is 50-150, and the D50 is 3-40 mu m.
The Tg temperature of the polyurethane was measured by the following method: putting a polyurethane test sample with a specific weight into a differential thermal analyzer, setting the heating rate to be 10 ℃/min, setting the heating range to be-60-200 ℃, carrying out two cycles in a nitrogen atmosphere, and reading the Tg temperature from an analysis curve.
The refractive index of the polyurethane was measured directly by means of an Abbe refractometer, a test specimen having a thickness of 2.0 mm.
The oil absorption value of the polyurethane is measured by the following method: adding dioctyl phthalate into polyurethane with fixed weight step by step, fully stirring until no reagent is precipitated, and obtaining the oil absorption value of the polyurethane according to the mass of the added reagent.
More preferably, the D50 of the polyurethane is 5-8 μm.
Preferably, the toughening agent is a rubber-containing graft polymer.
The tougheners are generally prepared by emulsion polymerization.
In particular, component A is grafted onto component B. The amount of the component A and the component B is 5-95% of the component A and 5-95% of the component B by weight of the toughening agent; preferably 10-70% of component A and 30-90% of component B; particularly preferably component A20-60% and component B40-80%.
Wherein the component A comprises the following components: at least one monomer (used in an amount of 65 to 85%, preferably 70 to 80% by weight of the component A) of a vinyl aromatic compound (e.g., styrene,. alpha. -methylstyrene), a vinyl aromatic compound substituted on the ring (e.g., p-methylstyrene, p-chlorostyrene) and a (C1 to C8) -alkyl methacrylate (e.g., methyl methacrylate, ethyl methacrylate), and at least one monomer of vinyl cyanide (e.g., unsaturated nitriles such as acrylonitrile and methacrylonitrile), (meth) acrylic acid (C1-C8) -alkyl esters (e.g., methyl methacrylate, N-butyl acrylate, t-butyl acrylate) and derivatives of unsaturated carboxylic acids (e.g., anhydrides and imides, maleic anhydride and N-phenylmaleimide) in an amount of 15 to 35%, preferably 20 to 30%, by weight of component A.
Component B provides the elastomer graft base. The graft base preferably has a glass transition temperature of <0 ℃, more preferably < -20 ℃, particularly preferably < -60 ℃.
Specifically, the component B can be one or more of the following substances: diene rubbers, diene-vinyl block copolymer rubbers, EP (D) M rubbers, urethane rubbers, silicone rubbers, chloroprene rubbers, ethylene/vinyl acetate rubbers, and the like.
Specifically, the toughening agent is one or two of HR-181 or M722.
Preferably, the antioxidant is one or more of hindered phenolic antioxidants (such as 1010, 176 and the like), phosphite antioxidants (such as 168, 626, 9228 and the like) or hindered amine antioxidants (such as 1098 and the like).
Preferably, the lubricant is one or more of PETS, GTS, GMS, silicone oil or white oil.
The glass fiber reinforced polycarbonate composition of the present invention may also include some other functional additives to achieve more diverse properties.
For example, flame retardants (such as BDP, RDP, phenoxyphosphazene, and the like, in a weight percentage of 1-20%); antistatic agents (such as conductive carbon black, conductive graphite, polyamide polyether block copolymer, ionic liquid and the like, the weight percentage is 1-30%); antibacterial agents (such as silver ion antibacterial agents with certain carriers, and the like, the weight percentage is 0.01-5%); fillers (such as calcium carbonate, talcum powder, wollastonite, titanium dioxide, barium sulfate and the like, and the weight percentage is 0.1-90%); the toner (such as inorganic pigments such as carbon black and zinc sulfide, and organic dyes such as anthraquinone, the weight percentage is 0.001-20%).
Preferably, the glass fiber reinforced polycarbonate composition has good bending toughness and bending modulus of more than 7000 MPa; the injection molding glossiness is less than 15; the extrusion gloss is less than 20.
The glass fiber reinforced polycarbonate provided by the invention can be obtained by extrusion or injection molding.
The process for preparing the glass fiber reinforced polycarbonate by using the extrusion process comprises the following steps:
the preparation method of the glass fiber reinforced polycarbonate comprises the following steps: mixing polycarbonate, ABS, glass fiber, acrylic shell silicone rubber, polyurethane, a toughening agent, an antioxidant and a lubricant, extruding and granulating to obtain the glass fiber reinforced polycarbonate composition.
Specifically, polycarbonate, ABS, glass fiber, acrylic shell silicone rubber, a toughening agent, an antioxidant and a lubricant are mixed by a high-speed mixer and then are added from a main feeding port, a polyurethane component is added through a side feeding port separately, and the mixture is extruded and granulated to obtain the glass fiber reinforced polycarbonate composition.
Compared with polycarbonate, the heat resistance of the polyurethane component is poor, and the performance of the polyurethane can be better ensured by adding the polyurethane component through the side feeding port.
The process for preparing the glass fiber reinforced polycarbonate composition by using the injection molding process comprises the following steps:
the preparation method of the glass fiber reinforced polycarbonate composition comprises the following steps: mixing polycarbonate, ABS, glass fiber, acrylic shell silicone rubber, polyurethane, a toughening agent, an antioxidant and a lubricant, and performing injection molding to obtain the glass fiber reinforced polycarbonate composition.
The preparation method has the advantages of simple process, strong applicability and easy popularization and application.
The application of the glass fiber reinforced polycarbonate in the preparation of engineering plastics is also within the protection scope of the invention.
Preferably, the glass fiber reinforced polycarbonate composition is applied to the preparation of electronic and electric appliance shell products.
Compared with the prior art, the invention has the following beneficial effects:
the glass fiber reinforced polycarbonate provided by the invention improves gloss by adding the acrylic shell silicone rubber and polyurethane, gives the glass fiber reinforced polycarbonate a better matte effect, and can meet the requirements of various processes on gloss; in addition, the glass fiber reinforced polycarbonate can keep higher bending toughness.
The preparation method has the advantages of simple process, strong applicability and easy popularization and application.
Detailed Description
The invention is further illustrated by the following examples. These examples are intended to illustrate the invention and are not intended to limit the scope of the invention. Experimental procedures without specific conditions noted in the examples below, generally according to conditions conventional in the art or as suggested by the manufacturer; the raw materials, reagents and the like used are, unless otherwise specified, those commercially available from the conventional markets and the like. Any insubstantial changes and substitutions made by those skilled in the art based on the present invention are intended to be covered by the claims.
Some of the reagents selected in the examples and comparative examples of the present invention are described below:
PC resin: S-2000F, Shanghai Mitsubishi, with a weight average molecular weight of 48000 and a terminal hydroxyl group content of 10 ppm;
PC resin: E-1000F, Shanghai Mitsubishi, weight average molecular weight 50000, and terminal hydroxyl group content 25 ppm;
ABS resin: PA747S, Qimei, acrylonitrile content 27%, rubber content 35%;
ABS resin: 277, Shanghai Gaoqiao, acrylonitrile content of 42%, rubber content of 10%;
glass fiber: 436T (chopped glass fiber), a boulder group, with a diameter of 13 μm and a length of 5-8 mm;
glass fiber: EDR-17-984 (long cut glass fiber), boulder group, diameter 14 μm, length greater than 20 mm;
glass fiber: 433 (chopped glass fiber), a boulder group, with a diameter of 7 μm and a length of 11-13 mm;
acrylic shell-based silicone rubber: s-2130, Mitsubishi yang, 30 percent of silica gel and 800nm of rubber particle diameter D50;
acrylic shell-based silicone rubber: s-2100, Mitsubishi yang, 10% of silica gel content and 850nm of rubber particle diameter D50;
acrylic shell-based silicone rubber: sx-006, Mitsubishi yang, 10% of silica gel content and 100nm of rubber particle diameter D50;
polyurethane: PC-8 is an innovative chemical industry, Tg is-48 ℃, the refractive index is 1.52, the oil absorption value is 80, and D50 is 5 mu m;
polyurethane: PC-5 is an innovative chemical industry, Tg is-35 ℃, the refractive index is 1.52, the oil absorption value is 52, and D50 is 38 mu m;
polyurethane: PC-3 is an innovative chemical industry, Tg is-35 ℃, the refractive index is 1.52, the oil absorption value is 40, and D50 is 38 mu m;
antioxidant: 1076 and 168, BASF;
lubricant: PETS, hair base;
a toughening agent: HR-181, Qimei in Taiwan.
Other processing aids: filler, wollastoll, IMEREYS corporation.
The glass fiber reinforced polycarbonates of the examples and comparative examples were prepared as follows.
An extrusion process: mixing polycarbonate, ABS, glass fiber, acrylic shell silicone rubber, a toughening agent, an antioxidant, a lubricant and other processing aids (if any), adding the mixture from a main feeding port after mixing the mixture by a high-speed mixer, independently adding a polyurethane component through a side feeding port, extruding and granulating to obtain the glass fiber reinforced polycarbonate composition.
The injection molding process comprises the following steps: mixing polycarbonate, ABS, glass fiber, acrylic shell silicone rubber, polyurethane, a toughening agent, an antioxidant, a lubricant and other processing aids (if any), and performing injection molding to obtain the glass fiber reinforced polycarbonate composition.
The test method of the performances of the glass fiber reinforced polycarbonate of the examples and the comparative examples of the invention is as follows:
flexural modulus: bending a bar with a thickness of 3.0mm according to ASTM D790-2017, wherein the injection temperature is 280 ℃; wherein the higher the flexural modulus, the better the material stiffness;
bending toughness: cutting a material strip with the length of 10cm at the extrusion temperature of 300 ℃ and the diameter of 2mm, and bending two ends at 90 ℃ to see whether the material strip is broken or not;
and (3) injection molding glossiness: testing an injection molding plate with the thickness of 3.0mm and the diameter of not less than 60mm according to the ASTM-D523-2014 standard, wherein the injection molding temperature is 300 ℃, the gloss at 60 degrees is tested by a gloss meter, the smaller the gloss is, the better the matte effect is, and when the injection molding gloss is less than 20 degrees and the extrusion gloss is less than 25 degrees, the optimal comprehensive matte effect is achieved.
Extrusion gloss: and (3) forming a plate with the film thickness of 3.0mm at the extrusion temperature of 260 ℃, cooling at room temperature for 48 hours, and testing the 60-degree gloss by using a gloss meter according to the ASTM-D523-2014 standard, wherein the smaller the gloss is, the better the matte effect is.
Examples 1 to 13
This example provides a series of glass fiber reinforced polycarbonate compositions having the components set forth in Table 1.
TABLE 1 Components (parts) of glass fiber reinforced polycarbonate compositions provided in examples 1 to 13
Examples 14 to 20
This example provides a series of glass fiber reinforced polycarbonate compositions having the components set forth in Table 2.
TABLE 2 Components (parts) of glass fiber reinforced polycarbonate compositions provided in examples 14 to 20
Comparative examples 1 to 7
This comparative example provides a series of glass fiber reinforced polycarbonate compositions having the components as shown in Table 3.
TABLE 3 Components (parts) of glass fiber reinforced polycarbonate compositions provided in comparative examples 1 to 7
The properties of the glass fiber reinforced polycarbonate compositions of the examples and comparative examples were measured according to the test methods mentioned above, and the test results are shown in Table 4.
Of these, comparative example 5 cannot be subjected to the performance test because the amount of polyurethane added is too large to be extrusion/injection molded. Comparative example 4 a serious appearance defect occurred after extrusion/injection molding.
TABLE 4 results of the Performance test of the glass fiber reinforced polycarbonate compositions of the examples and comparative examples
As can be seen from Table 4, the glass fiber reinforced polycarbonate provided by the embodiments of the present invention has good bending toughness and excellent matte property.
The introduction of the glass fiber can realize the enhancement of the material, and because the surface tension between the glass fiber and the resin has a certain difference, the injection molding glossiness of the material is reduced along with the increase of the content of the glass fiber, and the bending modulus is increased, so that the glass fiber is cooperated with the matte and toughness of the acrylate silicon rubber and the polyurethane in a certain range to realize higher bending toughness; as the glass fiber content increases, the flexural modulus also increases.
The addition of the acrylic shell silicone rubber can ensure that the glossiness can present a satisfactory matte effect, but the flexural modulus is slightly reduced; specifically, within a certain range (examples 1, 6-9), when the addition amount of the acrylic shell silicone rubber is increased, the bending toughness is better guaranteed, the injection molding matte effect is more and more obvious, and the extrusion matte effect maintains a satisfactory level; when the addition amount of the acrylic shell type silicon rubber is continuously increased, the matte effect is slightly reduced due to the weakening of the synergistic effect of the acrylic shell type silicon rubber and polyurethane; however, when the addition amount of the acrylic shell silicone rubber is large, defect hidden dangers can appear on the appearance; if the addition amount of the acrylic shell-type silicone rubber is too large (as in comparative example 4), a severe delamination appearance defect of the material is caused, and rubber particles in the acrylic shell-type silicone rubber will precipitate to the surface of the composition to cause phase separation, and the matte effect is only slightly improved relative to that without the addition (comparative example 1).
The addition of polyurethanes improves the toughness and gloss effect. Within a certain range (examples 1, 10-13), when the addition amount of polyurethane is increased, the matte effect is better and better, particularly, the extrusion matte effect is improved, and the bending toughness is also enhanced; when the addition amount of the polyurethane is larger, the matte effect is slightly reduced due to the weakening of the synergistic effect of the acrylic shell silicone rubber and the polyurethane, and the reduction of the thermal stability of the system causes the reduction of the bending toughness; if the addition amount of the polyurethane is too large (as in comparative example 5), the thermal stability of the system is seriously reduced, so that the bending toughness is reduced, and the fracture phenomenon is further caused; when the addition amount of the acrylic shell silicone rubber is 5-10 and the addition amount of the polyurethane is 5-10, the acrylic shell silicone rubber has better comprehensive performance. In the comparative example 1, the glass fiber reinforced polycarbonate composition is not modified, and the traditional polycarbonate composition (PCABS material) has high gloss, so that the matte surface texture cannot be realized, and the matte effect cannot be realized by adding a single toughening agent, but the processing defects and the risk of phase separation are caused; comparative example 3 since only the acrylic shell-type silicone rubber was added, the matte effect could not be achieved by the amount added; comparative example 2 since only polyurethane is added, the gloss can be reduced but the uniform matte requirement is not satisfied, and meanwhile, the addition of polyurethane alone causes the polycarbonate resin matrix not to have sufficient toughness, resulting in application limitation; comparative example 6 since the rubber particle diameter (D50) of the added acrylic shell-based silicone rubber was too small, further improvement in fluidity easily caused extrusion instability; when the rubber is acted by external force, the thickness of the resin layer among the rubber particles is not enough to effectively prevent the crack from expanding, so that the bending toughness is not good, and the fracture phenomenon occurs; meanwhile, the glass fiber reinforced polycarbonate composition cannot form rubber particles with sufficient surface quality to achieve a certain diffuse reflection effect, and the gloss improvement effect is poor. In comparative example 7, the diameter of the added glass fiber is too large, so that the restriction effect of the effective surface roughness on the rubber particles on the surface of the composition is difficult to exert under the same addition amount, and the distribution of the too large diameter of the glass fiber in the matrix resin causes the stress transfer point to be greatly reduced, so that the flexural modulus is reduced, the flexural toughness is poor, the fracture occurs, and the glossiness cannot be effectively improved.
It will be appreciated by those of ordinary skill in the art that the examples provided herein are intended to assist the reader in understanding the principles of the invention and are to be construed as being without limitation to such specifically recited examples and embodiments. Those skilled in the art can make various other specific changes and combinations based on the teachings of the present invention without departing from the spirit of the invention, and these changes and combinations are within the scope of the invention.
Claims (8)
1. The glass fiber reinforced polycarbonate composition is characterized by comprising the following components in parts by weight:
60-75 parts of Polycarbonate (PC),
25-40 parts of ABS (acrylonitrile-butadiene-styrene),
25-40 parts of glass fiber,
5-8 parts of acrylic shell silicone rubber,
5-12 parts of polyurethane,
1-15 parts of a toughening agent,
0.01 to 2 parts of an antioxidant,
0.1-3 parts of a lubricant;
the diameter of the glass fiber is 8-15 mu m;
the rubber D50 of the acrylic shell type silicon rubber is 800-1000 nm.
2. The glass fiber reinforced polycarbonate composition of claim 1, wherein the polycarbonate has a weight average molecular weight of 32000-60000 and a terminal hydroxyl group content of no greater than 100 ppm.
3. The glass fiber reinforced polycarbonate composition of claim 1, wherein the acrylic shell-based silicone rubber has a silica gel content of not less than 10%.
4. The glass fiber reinforced polycarbonate composition of claim 1, wherein the polyurethane has a Tg of less than-30 ℃, a refractive index of 1.52, an oil absorption value of 50 to 150, and a D50 of 3 to 40 μm.
5. The glass fiber reinforced polycarbonate composition of claim 1, wherein the toughening agent is a rubber-containing graft polymer; the antioxidant is one or more of hindered phenol antioxidant, phosphite antioxidant or hindered amine antioxidant; the lubricant is one or more of PETS, GTS, GMS, silicone oil or white oil.
6. The glass fiber reinforced polycarbonate composition of claim 1, wherein the glass fiber reinforced polycarbonate composition has a flexural modulus of greater than 7000MPa and maintains the flexural modulus; the injection molding glossiness is less than 15; the extrusion gloss is less than 20.
7. The method for preparing the glass fiber reinforced polycarbonate composition of any one of claims 1 to 6, comprising the steps of: extruding and granulating polycarbonate, ABS, glass fiber, acrylic shell silicone rubber, a toughening agent, an antioxidant and a lubricant to obtain the glass fiber reinforced polycarbonate composition; or mixing polycarbonate, ABS, glass fiber, acrylic shell silicone rubber, polyurethane, a toughening agent, an antioxidant and a lubricant, and performing injection molding to obtain the glass fiber reinforced polycarbonate composition.
8. Use of the glass fiber reinforced polycarbonate composition of any of claims 1 to 6 in the preparation of an electrical or electronic carrying product.
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