CN103467844A - Polypropylene composite material, as well as preparation method and application thereof - Google Patents
Polypropylene composite material, as well as preparation method and application thereof Download PDFInfo
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- CN103467844A CN103467844A CN2013103729381A CN201310372938A CN103467844A CN 103467844 A CN103467844 A CN 103467844A CN 2013103729381 A CN2013103729381 A CN 2013103729381A CN 201310372938 A CN201310372938 A CN 201310372938A CN 103467844 A CN103467844 A CN 103467844A
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- polypropylene composite
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- -1 Polypropylene Polymers 0.000 title claims abstract description 91
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 90
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 90
- 239000002131 composite material Substances 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 35
- 239000000843 powder Substances 0.000 claims abstract description 34
- 239000003365 glass fiber Substances 0.000 claims abstract description 16
- 239000007822 coupling agent Substances 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 6
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical group CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical class C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims description 2
- 229920001897 terpolymer Polymers 0.000 claims description 2
- 239000004033 plastic Substances 0.000 abstract description 10
- 229920003023 plastic Polymers 0.000 abstract description 10
- 238000012360 testing method Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000004575 stone Substances 0.000 abstract 1
- 239000012745 toughening agent Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 9
- 239000003112 inhibitor Substances 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- 239000003963 antioxidant agent Substances 0.000 description 6
- 230000003078 antioxidant effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- 229920005629 polypropylene homopolymer Polymers 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000006057 Non-nutritive feed additive Substances 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 229920002943 EPDM rubber Polymers 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 2
- 150000002989 phenols Chemical class 0.000 description 2
- 150000008301 phosphite esters Chemical class 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- MKYLOMHWHWEFCT-UHFFFAOYSA-N Manthidine Natural products C1C2=CC=3OCOC=3C=C2C2C3=CC(OC)C(O)CC3N1C2 MKYLOMHWHWEFCT-UHFFFAOYSA-N 0.000 description 1
- SNFRINMTRPQQLE-JQWAAABSSA-N Montanin Chemical compound O[C@H]([C@@]1(CO)O[C@H]1[C@H]1[C@H]2O3)[C@]4(O)C(=O)C(C)=C[C@H]4[C@]11OC3(CCCCCCCCCCC)O[C@@]2(C(C)=C)C[C@H]1C SNFRINMTRPQQLE-JQWAAABSSA-N 0.000 description 1
- SNFRINMTRPQQLE-OFGNMXNXSA-N Montanin Natural products O=C1[C@@]2(O)[C@@H](O)[C@@]3(CO)O[C@H]3[C@@H]3[C@H]4[C@@]5(C(=C)C)O[C@](CCCCCCCCCCC)(O4)O[C@@]3([C@H](C)C5)[C@@H]2C=C1C SNFRINMTRPQQLE-OFGNMXNXSA-N 0.000 description 1
- QTZPBQMTXNEKRX-UHFFFAOYSA-N Voacristine pseudoindoxyl Natural products N1C2=CC=C(OC)C=C2C(=O)C21CCN(C1)C3C(C(C)O)CC1CC32C(=O)OC QTZPBQMTXNEKRX-UHFFFAOYSA-N 0.000 description 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-UHFFFAOYSA-N 0.000 description 1
- 238000006701 autoxidation reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 1
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 230000005713 exacerbation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- SYECJBOWSGTPLU-UHFFFAOYSA-N hexane-1,1-diamine Chemical compound CCCCCC(N)N SYECJBOWSGTPLU-UHFFFAOYSA-N 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a polypropylene composite material, as well as a preparation method and application thereof. The polypropylene composite material comprises the following components in percentage by weight: 12-49% of polypropylene, 1-8% of a toughening agent, 50-80% of metal powder, 0-10% of glass fiber and 0-3% of a processing additive, wherein tests show that melt mass flow rate of 2.16 kg of polypropylene is greater than 100 g/10min at the temperature of 230 DEG C; the surface of the metal powder is processed by a coupling agent. According to the invention, the formula and the contents of all components are selected reasonably, so that the polypropylene composite material with relatively high mechanical strength, ductility and density as well as a smooth surface is obtained; according to the formula disclosed by the invention, under the condition that the adding amount of the glass fiber is low, high strength and high density are realized; application value in fields of using the plastic to replace steel, stone and the like is developed.
Description
Technical field
The present invention relates to field of polymer technology, particularly a kind of polypropylene composite material and its preparation method and application.
Background technology
Plastics have good moldability, easy to process, cheap than metal, so the plastic cement alternative metals becomes the trend of development of manufacturing.Although under a lot of occasions, plastics replace a main advantage of metal to be that its density is low, proportion is than the equal volume metal light, wish that plastics have higher density yet also exist under certain situation when with plastics, replacing metal, make it to user's the intuitional and experiential thinking, too large variation not to occur in the replacement process.Prior art is mainly to improve the density of plastic material by adding the rare metal powder such as high-content tungsten powder, molybdenum powder.Although add the density that the high specific gravity metal powder can effectively improve material, yet price costlinesses such as tungsten powder, molybdenum powder, copper powder, only limit to military use, physical strength and the toughness of metal powder filled plastics are generally on the low side simultaneously, and the surface property of metal powder filled plastics also is affected, cause its application to be restricted.
The present invention is by selecting the cheap metal powder, by metal-powder being carried out to surface treatment and introduce glass in filler systems, adopt the special surface lubricant simultaneously, not only improved the performance of high-density plastic material, make it there is excellent surface simultaneously, there are wide market outlook.
Summary of the invention
Goal of the invention of the present invention, be the deficiency of polypropylene composite physical strength, toughness and surface property aspect in order to overcome prior art, and a kind of polypropylene composite material is provided.
Another object of the present invention is to provide the preparation method of described polypropylene composite material.
Another object of the present invention is to provide the application by described polypropylene composite material.
Above-mentioned purpose of the present invention is achieved by following technical solution:
A kind of polypropylene composite material, described polypropylene composite material comprises the component that following weight percent calculates:
Described polyacrylic number-average molecular weight is between 10000～50000; The surface of described metal powder is through coupling agent treatment.
A kind of polypropylene composite material, the component that described polypropylene composite material is calculated by following weight percent forms:
Described polyacrylic number-average molecular weight is between 10000～50000; The surface of described metal powder is through coupling agent treatment.
The contriver is by experiment discovery repeatedly, and after adopting above-mentioned formula range, the gained polypropylene composite material could have higher physical strength (tensile strength and flexural strength) and toughness simultaneously, and has good surface flatness.When being chosen in this scope ratio in addition, can not meet above-mentioned mechanical property, toughness, surface property simultaneously and reach preferred values simultaneously.
In above-mentioned formula range, described polypropylene composite material more preferably comprises the component that following weight percent calculates:
Described polyacrylic number-average molecular weight is between 10000～50000; The surface of described metal powder is through coupling agent treatment.
In above-mentioned formula range, described polypropylene composite material more preferably comprises the component that following weight percent calculates:
Described polyacrylic number-average molecular weight is between 10000～50000; The surface of described metal powder is through coupling agent treatment.
In above-mentioned formula range, described polypropylene composite material preferably includes the component that following weight percent calculates:
Described polyacrylic number-average molecular weight is between 10000～50000; The surface of described metal powder is through coupling agent treatment.
In above-mentioned formula range, described polypropylene composite material more preferably comprises the component that following weight percent calculates:
Described polyacrylic number-average molecular weight is between 10000～50000; The surface of described metal powder is through coupling agent treatment.
In above-mentioned formula range, described polypropylene composite material more preferably comprises the component that following weight percent calculates:
Described polyacrylic number-average molecular weight is between 10000～50000; The surface of described metal powder is through coupling agent treatment.
Wherein, in described polypropylene composite material, content of glass fiber is preferably 3～10%; Now can suitably reduce the ratio of metal powder, making it meet weight percent is 100%.
Wherein, described polypropylene is Co-polypropylene, homo-polypropylene or the mixture of the two.
Wherein, described polypropylene is comprised of at 10000～20000 polypropylene in 40000～50000 polypropylene and number-average molecular weight number-average molecular weight.
Wherein, described polypropylene is comprised of at 10000～20000 low-molecular-weight polypropylene the high molecular weight polypropylene of the number-average molecular weight 40000～50000 that accounts for polypropylene weight 0～30% and the number-average molecular weight that accounts for polypropylene weight 70～100%.
Wherein, described polypropylene is comprised of at 10000～20000 low-molecular-weight polypropylene the high molecular weight polypropylene of the number-average molecular weight 40000～50000 that accounts for polypropylene weight 20% and the number-average molecular weight that accounts for polypropylene weight 80%.
Wherein, toughner is this area toughner commonly used, and further, described toughner can be one or more the mixture in terpolymer EP rubber EPDM, ethylene-octene copolymer POE, hydrogenated styrene-butadiene-styrene block copolymers SEBS.
Wherein, the density of described metal powder is at 6g/cm
3above; Described metal powder is similar round, and its diameter is less than or equal to 5 μ m.
Wherein, described metal powder can be copper powder, iron powder, zinc powder, ferrophosphorus powder.
When the density of metal powder is too low, obtain highdensity polypropylene composite, certainly will need to add relatively large metal-powder, adding of excessive metal-powder, can have negative impact to mechanical property and the surface property of mixture.
Wherein, coupling agent can improve metal powder and polyacrylic consistency, and in the present invention, coupling agent used is this area coupling agent commonly used, and further, described coupling agent is vinyltriethoxysilane.
Wherein, described glass fibre is the chopped strand of diameter at 11～14 μ m.
Wherein, described processing aid comprises oxidation inhibitor, lubricant and/or pigment.
Described oxidation inhibitor can be selected from Hinered phenols antioxidant, phosphite ester kind antioxidant or the composition of the two, as Hinered phenols antioxidant Ingranox1098, and phosphite ester kind antioxidant P-EPQ.Described oxidation inhibitor also can be selected from N, N'-pair-(3-(3, the 5-di-tert-butyl-hydroxy phenyl) propionyl) hexanediamine (oxidation inhibitor 1098), four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (antioxidant 1010), three ［ 2, the 4-di-tert-butyl-phenyl ］ phosphorous acid ester (irgasfos 168), Triethylene glycol two [β-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) propionic ester] (oxidation inhibitor 245), 1, 3, 5-tri-(3, the 5-di-tert-butyl-4-hydroxyl benzyl) tricarbimide (antioxidant 3114), 1, 3, 5-trimethylammonium-2, 4, 6-(3, 5-di-t-butyl-4-hydroxybenzene methyl) benzene (oxidation inhibitor 1330), 1, 3, 5-tri-(the 4-tertiary butyl-3-hydroxyl-2, the 6-dimethyl benzyl)-1, 3, 5-triazine-2, 4, 6-(1H, 3H, 5H)-triketone (oxidation inhibitor 1790), 1, 3, 5-tri-(3, the 5-di-tert-butyl-4-hydroxyl benzyl) tricarbimide (antioxidant 3114).
The combination of one or more in the optional autoxidation polyethylene wax of lubricant, ethylene vinyl acetate, ethylene acrylic acid co polymer, montanin wax, Poly Propylene Wax, pentaerythritol stearate.
Pigment can be this area optional pigment commonly used.
The preparation method of described polypropylene composite material, comprise the steps:
(1) by polypropylene in 80 ℃ of vacuum-dryings 4 hours;
(2) take in proportion dried polypropylene, toughner, metal powder, processing aid, and put in agitator and mix 3～5min;
(3) raw material mixed in step (2) is joined to twin screw extruder, processed, add glass fibre in twin screw extruder 3rd district, complete processing is as follows: 180～220 ℃ of twin screw extruder one district's temperature 120～210 ℃， bis-district's temperature, three 180～220 ℃ of district's temperature, four 200～2400 ℃ of district's temperature 200～240 ℃， five district's temperature 200～240 ℃， six district's temperature, 220～250 ℃ of head temperatures, pressure is 12～18Mpa.The application of described polypropylene composite material in preparing molding.Here said molding, can be moulded piece.
A kind of moulded piece prepared by described polypropylene composite material.
According to different needs, this moulded piece can be made as toy part, pipe fitting, bracing frame etc. to mould the substituting metal product.
Compared with prior art, the present invention has following beneficial effect:
The present invention is by formula and the reasonable screening of each component concentration, obtains a kind ofly thering is higher physical strength (tensile strength and flexural strength) and toughness, and the polypropylene composite material with good surface property; The tensile strength of described polypropylene composite material can be more than 30MPa, and flexural strength is more than 40MPa, and notched Izod impact strength is at 10kJ/m
2above, density is at 2.0g/cm
3, surface flatness at least can reach 3 grades, generally at 1 or 2 grade; And formula disclosed in this invention, in the situation that the glass fibre addition is few, can reach high notched Izod impact strength.
Embodiment
Below in conjunction with some embodiments, polypropylene composite material of the present invention and preparation method thereof is described further.Specific embodiment is for further describing the present invention, non-limiting protection scope of the present invention.
Embodiments of the invention adopt following raw material:
Polypropylene-1: homo-polypropylene, number-average molecular weight 50000, melt mass flow rate is at 230 ℃, and under 2.16Kg, test is 80g/10min;
Polypropylene-2: Co-polypropylene, number-average molecular weight 40000, melt mass flow rate is tested as 92g/10min under 230 ℃/2.16Kg;
Polypropylene-3: homo-polypropylene, number-average molecular weight 10000, melt mass flow rate is tested as 250g/10min under 230 ℃/2.16Kg;
Polypropylene-4: Co-polypropylene, number-average molecular weight 20000, melt mass flow rate is tested as 140g/10min under 230 ℃/2.16Kg;
Polypropylene-5: homo-polypropylene, number-average molecular weight 200000, melt mass flow rate is tested as 12g/10min under 230 ℃/2.16Kg;
EPDM, the light novel material company limited of Ningbo energy;
POE, the light novel material company limited of Ningbo energy;
SEBS, the light novel material company limited of Ningbo energy;
Iron powder, similar round, diameter 3 μ m;
Super-fine zinc dust, similar round, diameter 200nm;
Ultra-fine ferrophosphorus powder, similar round, diameter 200nm;
Copper powder, similar round, diameter 2 μ m;
Glass fibre-1, the short glass fiber that diameter is 11 μ m;
Glass fibre-2, the short glass fiber that diameter is 14 μ m;
Oxidation inhibitor: Ingranox1098;
Lubricant: polyethylene wax;
Black pigment: carbon black.
In embodiment, metal powder used is for carrying out the surface-treated metal powder through vinyltriethoxysilane.
Material performance test method:
(1) tensile strength: the GB/T1040 standard is tested.Draw speed is 10mm/min;
(2) flexural strength, modulus in flexure and amount of deflection are tested by the GB9341/T standard, and rate of bending is 2mm/min;
(3) notched Izod impact strength is tested by the GB/T2571 standard.The breach type is category-A, small sample;
(4) unnotched impact strength is tested by the GB/T2571 standard.Batten is small sample;
(5) density measurement is tested by GB/T1033.
(6) the surface flatness test is as follows: the square plate of three 100mm * 100mm * 3mm of difference injection moulding, and naked-eye observation visible sags and crests, and record its number, and by three how many surface flatnesses to material of square plate sags and crests sum, graded, grade as follows:
1 grade-smooth surface is less than 5 as minute surface, sags and crests;
2 grades-smooth surface is 6～10 as minute surface, sags and crests;
3 grades-smooth surface, sags and crests are 11～20;
4 grades-smooth surface, sags and crests are 21～30;
5 grades-surface is general, sags and crests is 31～40;
6 grades-surface is general, sags and crests is 41～50;
7 grades-surface irregularity, sags and crests are 60～80;
8 grades-surface is extremely coarse, sags and crests is greater than 80;
In embodiment, polypropylene used all through carrying out the vacuum-drying processing of 4 hours under 120 ℃.
Below in the mode of specific embodiment, be illustrated, described raw material unless stated otherwise, is weight part.
Auxiliary agent is little to the performance impact of product in the present invention, and for other, common auxiliary agent differs one for example.
Embodiment 1～6
By being prepared as follows method, the polypropylene composite material of Preparation Example 1:
Take dried polypropylene-1 12 part, toughner MEPDM8 part, 80 parts of super-fine zinc dusts, 0 part, glass fibre, and put in agitator and mix 3min; The raw material that step is mixed joins twin screw extruder, processed, complete processing is as follows: 120～210 ℃ of twin screw extruder one district's temperature, two 200～240 ℃ of district's temperature 180～220 ℃， tri-district's temperature 180～220 ℃， tetra-district's temperature, five 200～240 ℃ of district's temperature, six 200～2400 ℃ of district's temperature, 220～250 ℃ of head temperatures, pressure is 12～18Mpa.
With reference to the deal of table 1 record, according to the preparation method of embodiment 1, the polypropylene composite material of Preparation Example 2～6.
Table 1
Comparative Examples 1～6
With reference to the deal of table 2 record, reach the preparation method of embodiment 1, prepare the polypropylene composite material of Comparative Examples 1～6.
Table 2
The performance test results of embodiment 1～6 and Comparative Examples 1～6 is as shown in table 3:
Table 3
Embodiment 1～4 has reflected that this resulting polypropylene composite material of filling a prescription has good mechanical property and surface property.In embodiment 5 and 6, added the glass fibre of small amount, can find out, the intensity of polypropylene composite material is significantly improved.
From above-mentioned Comparative Examples 1～4, can find out, when the polypropylene number-average molecular weight too high, when its melt mass flow rate is too low, the polypropylene composite material mechanical property loss of gained, and obvious decline also appears in the surface property of gained polypropylene composite material, from embodiment 5, with Comparative Examples 5, it can also be seen that, when selected polypropylene number-average molecular weight is too high, added the glass fibre with amount, to the deleterious effects of having of the notched Izod impact strength of polypropylene composite material.
Embodiment 7～10 and Comparative Examples 7～8
By being prepared as follows method, the polypropylene composite material of Preparation Example 7:
Take dried polypropylene-1 12 part, toughner POE5 part, 73 parts of iron powders, 0 part of processing aid, put in agitator and mix 5min; The raw material that step is mixed joins twin screw extruder, processed, and 3rd district add glass fibre-1 10 part, and complete processing is as follows: 180～220 ℃ of twin screw extruder one district's temperature 120～210 ℃， bis-district's temperature, three 180～220 ℃ of district's temperature, four 200～2400 ℃ of district's temperature 200～240 ℃， five district's temperature 200～240 ℃， six district's temperature, 220～250 ℃ of head temperatures, pressure is 12～18Mpa.Prepare the polypropylene composite material of embodiment 7.
With reference to the deal of table 4 record, according to the preparation method of embodiment 7, the polypropylene composite material of Preparation Example 8～10 and Comparative Examples 7～8.
Table 4
The performance test results of embodiment 7～10 and Comparative Examples 7～8 is as shown in table 5.
Table 5
To those skilled in the art, the addition of general glass fibre, when being greater than 10wt%, just can have obvious impact to notched Izod impact strength; And can find out from embodiment 7～10, in formula range of the present invention, after the glass fibre that has added small amount, the notched Izod impact strength of gained polypropylene composite increases significantly.From Comparative Examples 7 and 8, can find out, when the content of glass fibre is too high, descending appears in notched Izod impact strength, and severe exacerbation also appears in surface property.And, when the content of glass is too high, the processing of the polypropylene composite difficulty that becomes.
To sum up, polypropylene composite material of the present invention has higher physical strength (tensile strength and flexural strength) and toughness, and there is good surface property, the tensile strength of described polypropylene composite material can be more than 30MPa, flexural strength is more than 40MPa, and notched Izod impact strength is at 10kJ/m
2above, density is at 2.0g/cm
3, surface flatness at least can reach 3 grades, generally at 1 or 2 grade.The moulded piece prepared by it can be made as toy part, pipe fitting, bracing frame etc. to mould the substituting metal product, is with a wide range of applications.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (10)
1. a polypropylene composite material, is characterized in that, described polypropylene composite material comprises the component that following weight percent calculates:
Described polyacrylic number-average molecular weight is between 10000～50000; The surface of described metal powder is through coupling agent treatment.
2. polypropylene composite material as claimed in claim 1, is characterized in that, the component that described polypropylene composite material is calculated by following weight percent forms:
Described polyacrylic number-average molecular weight is between 10000～50000; The surface of described metal powder is through coupling agent treatment.
3. polypropylene meets material as claimed in claim 1 or 2, it is characterized in that, described polypropylene is comprised of at 10000～20000 polypropylene in 40000～50000 polypropylene and number-average molecular weight number-average molecular weight.
4. polypropylene meets material as claimed in claim 1 or 2, it is characterized in that, described polypropylene is comprised of at 10000～20000 low-molecular-weight polypropylene the high molecular weight polypropylene of the number-average molecular weight 40000～50000 that accounts for polypropylene weight 0～30% and the number-average molecular weight that accounts for polypropylene weight 70～100%.
5. polypropylene composite material as claimed in claim 1 or 2, is characterized in that, described toughner is one or more the mixture in terpolymer EP rubber, grafted ethene-octene copolymer, hydrogenated styrene-butadiene-styrene block copolymers.
6. polypropylene composite material as claimed in claim 1 or 2, is characterized in that, the density of described metal powder is at 6g/cm
3above; Described metal powder is similar round, and its diameter is less than or equal to 5 μ m.
7. polypropylene composite material as claimed in claim 1 or 2, is characterized in that, described coupling agent is vinyltriethoxysilane.
8. polypropylene composite material as claimed in claim 1 or 2, is characterized in that, described glass fibre is the chopped strand of diameter at 11～14 μ m.
9. the preparation method of the described polypropylene composite material of any one claim in claim 1 to 8, is characterized in that, comprises the steps:
(1) by polypropylene in 8 ℃ of vacuum-dryings 4 hours;
(2) take in proportion dried polypropylene, toughner, metal powder, and put in agitator and mix 3～5min;
(3) raw material mixed in step (2) is joined to twin screw extruder, processed, add glass fibre in twin screw extruder 3rd district, complete processing is as follows: 180～220 ℃ of twin screw extruder one district's temperature 120～210 ℃， bis-district's temperature, three 180～220 ℃ of district's temperature, four 200～2400 ℃ of district's temperature 200～240 ℃， five district's temperature 200～240 ℃， six district's temperature, 220～250 ℃ of head temperatures, pressure is 12～18Mpa.
10. the application of the described polypropylene composite material of any one claim in preparing molding in claim 1 to 8.
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| CN103971775A (en) * | 2014-05-09 | 2014-08-06 | 北京化工大学 | High temperature resistance neutron shield material and preparation method thereof |
| CN104774377A (en) * | 2015-03-26 | 2015-07-15 | 安徽海纳川塑业科技有限公司 | Lightweight and environmental-protection polypropylene composite material |
| CN106426846A (en) * | 2016-06-23 | 2017-02-22 | 安徽鼎远金属制品有限公司 | Preparation method of internal and external frameworks of bushing of automobile round girder |
| CN107955256A (en) * | 2016-10-17 | 2018-04-24 | 丹阳市丹力展览用品有限公司 | A kind of high-performance composite materials |
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| CN107955256A (en) * | 2016-10-17 | 2018-04-24 | 丹阳市丹力展览用品有限公司 | A kind of high-performance composite materials |
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