CN109486015B - Fiber-reinforced polypropylene material and preparation method thereof - Google Patents
Fiber-reinforced polypropylene material and preparation method thereof Download PDFInfo
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- CN109486015B CN109486015B CN201811491097.5A CN201811491097A CN109486015B CN 109486015 B CN109486015 B CN 109486015B CN 201811491097 A CN201811491097 A CN 201811491097A CN 109486015 B CN109486015 B CN 109486015B
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- 239000000463 material Substances 0.000 title claims abstract description 121
- -1 polypropylene Polymers 0.000 title claims abstract description 88
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 86
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 86
- 238000002360 preparation method Methods 0.000 title abstract description 16
- 239000000835 fiber Substances 0.000 claims abstract description 95
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 48
- 239000004917 carbon fiber Substances 0.000 claims abstract description 48
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 44
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 30
- 229920001470 polyketone Polymers 0.000 claims abstract description 26
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 19
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 19
- 239000000314 lubricant Substances 0.000 claims abstract description 17
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 15
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 14
- XYXJKPCGSGVSBO-UHFFFAOYSA-N 1,3,5-tris[(4-tert-butyl-3-hydroxy-2,6-dimethylphenyl)methyl]-1,3,5-triazinane-2,4,6-trione Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C)=C1CN1C(=O)N(CC=2C(=C(O)C(=CC=2C)C(C)(C)C)C)C(=O)N(CC=2C(=C(O)C(=CC=2C)C(C)(C)C)C)C1=O XYXJKPCGSGVSBO-UHFFFAOYSA-N 0.000 claims description 10
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 10
- 239000000155 melt Substances 0.000 claims description 9
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 8
- 239000008116 calcium stearate Substances 0.000 claims description 8
- 235000013539 calcium stearate Nutrition 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 7
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 5
- VSAWBBYYMBQKIK-UHFFFAOYSA-N 4-[[3,5-bis[(3,5-ditert-butyl-4-hydroxyphenyl)methyl]-2,4,6-trimethylphenyl]methyl]-2,6-ditert-butylphenol Chemical compound CC1=C(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)C(C)=C(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)C(C)=C1CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 VSAWBBYYMBQKIK-UHFFFAOYSA-N 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 3
- VNQNXQYZMPJLQX-UHFFFAOYSA-N 1,3,5-tris[(3,5-ditert-butyl-4-hydroxyphenyl)methyl]-1,3,5-triazinane-2,4,6-trione Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CN2C(N(CC=3C=C(C(O)=C(C=3)C(C)(C)C)C(C)(C)C)C(=O)N(CC=3C=C(C(O)=C(C=3)C(C)(C)C)C(C)(C)C)C2=O)=O)=C1 VNQNXQYZMPJLQX-UHFFFAOYSA-N 0.000 claims description 2
- 229920002943 EPDM rubber Polymers 0.000 claims description 2
- BGHBLQKNCVRIKV-UHFFFAOYSA-N OP(O)OP(O)O.OCC(CO)(CO)CO.C(C)(C)(C)C1=C(C=CC(=C1)C(C)(C)C)O.C(C)(C)(C)C1=C(C=CC(=C1)C(C)(C)C)O Chemical compound OP(O)OP(O)O.OCC(CO)(CO)CO.C(C)(C)(C)C1=C(C=CC(=C1)C(C)(C)C)O.C(C)(C)(C)C1=C(C=CC(=C1)C(C)(C)C)O BGHBLQKNCVRIKV-UHFFFAOYSA-N 0.000 claims description 2
- 235000021355 Stearic acid Nutrition 0.000 claims description 2
- 239000007983 Tris buffer Substances 0.000 claims description 2
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound 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
- 238000005516 engineering process Methods 0.000 claims description 2
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 239000008117 stearic acid Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 2
- WGKLOLBTFWFKOD-UHFFFAOYSA-N tris(2-nonylphenyl) phosphite Chemical compound CCCCCCCCCC1=CC=CC=C1OP(OC=1C(=CC=CC=1)CCCCCCCCC)OC1=CC=CC=C1CCCCCCCCC WGKLOLBTFWFKOD-UHFFFAOYSA-N 0.000 claims description 2
- MGMXGCZJYUCMGY-UHFFFAOYSA-N tris(4-nonylphenyl) phosphite Chemical compound C1=CC(CCCCCCCCC)=CC=C1OP(OC=1C=CC(CCCCCCCCC)=CC=1)OC1=CC=C(CCCCCCCCC)C=C1 MGMXGCZJYUCMGY-UHFFFAOYSA-N 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 7
- 229920005989 resin Polymers 0.000 abstract description 6
- 239000011347 resin Substances 0.000 abstract description 6
- 238000012986 modification Methods 0.000 abstract description 4
- 230000004048 modification Effects 0.000 abstract description 4
- 229920000642 polymer Polymers 0.000 abstract description 4
- 238000003889 chemical engineering Methods 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 13
- 230000002787 reinforcement Effects 0.000 description 10
- 229920006253 high performance fiber Polymers 0.000 description 9
- 239000012257 stirred material Substances 0.000 description 9
- 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 4
- 239000000956 alloy Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 241001600132 Streptomyces cyanogenus Species 0.000 description 1
- 239000011157 advanced composite material Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- SCKHCCSZFPSHGR-UHFFFAOYSA-N cyanophos Chemical compound COP(=S)(OC)OC1=CC=C(C#N)C=C1 SCKHCCSZFPSHGR-UHFFFAOYSA-N 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000011208 reinforced composite material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 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
- C08J5/042—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with carbon 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
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/041—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with metal fibres
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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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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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
- C08J2373/00—Characterised by the use of macromolecular compounds obtained by reactions forming a linkage containing oxygen or oxygen and carbon in the main chain, not provided for in groups C08J2359/00 - C08J2371/00; Derivatives of such 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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
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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
- C08J2451/00—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
- C08J2451/06—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 homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- C08J2473/00—Characterised by the use of macromolecular compounds obtained by reactions forming a linkage containing oxygen or oxygen and carbon in the main chain, not provided for in groups C08J2459/00 - C08J2471/00; Derivatives of such polymers
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/042—Graphene or derivatives, e.g. graphene oxides
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- 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
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Abstract
The invention belongs to the technical field of modification of polymer composite materials, and particularly relates to a fiber-reinforced polypropylene material and a preparation method thereof. The polypropylene material takes high-crystalline homopolymerized polypropylene as a basic component, polyketone resin is added to improve the wear resistance and mechanical property of the material, compound fiber consisting of chopped carbon fiber and aluminum fiber is added, graphene is added in an auxiliary mode to improve the mechanical strength and the heat conductivity and the electric conductivity of the material, a compatilizer is added to improve the binding force among raw materials and improve the mechanical property of the material, an antioxidant is used to improve the aging resistance of the material, and a lubricant is used to reduce friction generated during material processing. The material has the characteristics of high strength and modulus, electric and heat conduction, high temperature resistance, excellent dimensional stability and the like, and can completely meet the functional requirements of heat exchange parts of automobiles, machinery and chemical engineering in severe environments on the material.
Description
Technical Field
The invention belongs to the technical field of modification of polymer composite materials, and particularly relates to a fiber-reinforced polypropylene material and a preparation method thereof.
Background
Polypropylene (PP) is a thermoplastic resin with excellent properties, has many advantages such as high cost performance and convenient processing, is widely used in the fields of automobiles, household appliances and the like at present, but is used as engineering plastic, has defects in the aspects of strength, rigidity, electric conductivity, heat conductivity and the like, and needs to be further improved according to the application environment. The carbon fiber has the characteristics of small specific gravity, high specific strength and specific modulus, corrosion resistance and the like, and is the most important reinforcement of the advanced composite material. The carbon fiber reinforced composite material has the advantages of high strength, light weight, high temperature resistance, high heat resistance and the like, and the research and preparation of the high-performance carbon fiber reinforced polypropylene composite material are expected to meet the requirement of the automobile field on material lightweight, so that the carbon fiber reinforced polypropylene composite material has very important economic value and social significance. Polypropylene has relatively poor thermal conductivity, and has a thermal conductivity of only 0.19W/(m · k), and when it is applied to chemical heat exchangers and electronic heat sinks, it is necessary to improve the thermal conductivity so as to satisfy these fields requiring high thermal conductivity. Therefore, the research on the high-strength high-thermal conductivity polypropylene composite material to meet the requirements of fields such as automobiles, machinery, chemical engineering, electronics and the like on functional composite materials is of great significance.
Disclosure of Invention
In order to overcome the defects and shortcomings of the prior art, the invention aims to provide a fiber-reinforced polypropylene material which has the characteristics of high strength and rigidity, excellent electric conductivity, heat conductivity, temperature resistance, dimensional stability and the like.
Another object of the present invention is to provide a method for preparing the above fiber-reinforced polypropylene material.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a fiber reinforced polypropylene material comprising the following raw materials: high-crystalline homo-polypropylene, polyketone, chopped carbon fiber, aluminum fiber, graphene, a compatilizer, an antioxidant and a lubricant.
More preferably, the fiber reinforced polypropylene material is composed of the following raw materials in percentage by mass:
the mass fraction of the raw materials is 100 percent.
Preferably, the high-crystalline homo-polypropylene is granular, and the melt mass flow rate at 230 ℃ and 2.16KG is 20-60 g/10 min.
Preferably, the polyketone is in a granular form, and the melt mass flow rate under the conditions of 240 ℃ and 2.16KG is 100-300 g/10 min.
More preferably, the polyketone is M230A, available from Korea-Weekly corporation.
Preferably, the length of the short carbon fiber is 2-5 mm, and the fiber diameter is 6-20 um.
More preferably, the chopped carbon fiber is a chopped carbon fiber PX35CA0250-65 available from Toray corporation of Japan or CO70CP006-PEY available from Amos composites corporation of Korea.
Preferably, the length of the aluminum fiber is 2-4 mm, and the diameter of the aluminum fiber is 20-90 um.
More preferably, the aluminum fiber is aluminum fiber purchased from Jintong industries, Inc., New York.
Preferably, the graphene is flaky, the diameter of the microchip is 2-4 mm, and the bulk density is 0.31-0.39 g/ml.
More preferably, the graphene is KNG-T181-2 purchased from Kaina graphene technology, Inc. of Xiamen.
Preferably, the compatilizer is one or more than two of ethylene propylene diene monomer rubber grafted maleic anhydride EPDM-g-MAH, styrene-butadiene-styrene copolymer grafted maleic anhydride SBS-g-MAH, polyolefin thermoplastic elastomer grafted maleic anhydride TPO-g-MAH, ethylene-octene copolymer grafted maleic anhydride POE-g-MAH and polypropylene grafted maleic anhydride PP-g-MAH.
Preferably, the antioxidant is tetra [ methyl-beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] pentaerythritol ester (antioxidant 1010), 1,3, 5-tris (3, 5-di-tert-butyl-4-hydroxybenzyl) isocyanuric acid (antioxidant 3114), 1,3, 5-trimethyl-2, 4, 6-tris (3, 5-di-tert-butyl-4-hydroxybenzyl) benzene (antioxidant 330), 1,3, 5-tris (4-tert-butyl-3-hydroxy-2, 6-dimethylbenzyl) -1,3, 5-triazine-2, 4,6- (1H,3H,5H) -trione (antioxidant 1790), tris (nonylphenyl) phosphite (antioxidant TNPP), One or more of tris (2, 4-di-tert-butyl) phenyl phosphite (antioxidant 168) and bis (2, 4-di-tert-butylphenol) pentaerythritol diphosphite (antioxidant 626).
Preferably, the lubricant is one or more of calcium stearate, zinc stearate, stearic acid, white oil and ethylene bisstearamide.
The invention further provides a preparation method of the fiber reinforced polypropylene material, which comprises the following steps: uniformly mixing high-crystalline homo-polypropylene, polyketone, graphene, a compatilizer, an antioxidant and a lubricant to obtain a mixed material; and melting and extruding the mixed material and the mixed fiber of the chopped carbon fiber and the aluminum fiber, cooling and drying to obtain the fiber reinforced polypropylene material.
Preferably, the uniform mixing method is to stir at a rotating speed of 2000-3000 rpm for 2-8 minutes.
Preferably, the melt extrusion is performed using a parallel twin screw extruder with a length to diameter ratio of 48: 1.
More preferably, the mixing materials and the mixed fibers are added from a main feeding hopper and a side feeding hopper of the parallel twin-screw extruder respectively during the melt extrusion.
Preferably, the rotating speed of the melt-extrusion screw is 400-800 r/min, the frequency of the main hopper feeding screw is 15-40 HZ, and the feeding frequency of the side feeding hopper is correspondingly adjusted according to the adding proportion of the fibers.
Preferably, the melt extrusion is carried out in 12 temperature sections, and the temperatures of all the sections from the hopper to the die head are 180-210 ℃, 210-240 ℃, 190-220 ℃, 200-230 ℃ and 210-240 ℃ respectively.
Preferably, the cooling mode is water tank cooling.
Preferably, the drying mode is fan drying.
Preferably, after drying, the extruded fiber-reinforced polypropylene material is cut into particles to obtain the fiber-reinforced polypropylene material with the length of 3-5 mm.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the invention adopts high-crystallization homopolymerization polypropylene as a base material, and has higher hardness, strength and rigidity, better heat resistance and dimensional stability compared with common homopolymerization polypropylene and copolymerization polypropylene, thereby endowing the material with good mechanical property, and in addition, the material can be endowed with good processing property by selecting polypropylene with medium and high melt mass flow rate.
(2) The polypropylene/polyketone alloy material prepared by adding the polyketone resin can improve the corresponding performance of the polypropylene material by utilizing the excellent frictional wear performance, good impact toughness and excellent temperature resistance of the polyketone resin, and meanwhile, the polypropylene material can improve the processing performance and surface gloss of the polypropylene material, reduce the cost and realize the advantage complementation of the two.
(3) According to the invention, the chopped carbon fibers and the aluminum fibers are compounded, so that on one hand, the polypropylene/polyketone alloy material can be reinforced and strengthened, the heat resistance and the size stability of the polypropylene/polyketone alloy material are improved, and meanwhile, the conductivity of the material can be greatly improved.
(4) According to the invention, the flaky graphene, the chopped carbon fibers and the aluminum fibers are compounded to form a cross network structure, so that a more complete and smooth heat conduction channel is formed, and the heat conduction performance of the polypropylene/polyketone alloy material can be further improved.
(5) The compatilizer is adopted to improve the thermodynamic compatibility between the polypropylene and the polyketone resin and the interfacial adhesion between the resin and the fiber, thereby improving the strength and the impact toughness of the material.
(6) The antioxidant can prevent the material from degradation reaction caused by the action of heat and oxygen in the processing and using processes, and can endow the material with good long-term thermal-oxidative aging resistance.
(7) The lubricant is used for reducing the friction among the molecules in the polymer and between the polymer molecules and the surface of a processing machine, so that the processing performance, rheological property and demolding performance of the material are improved.
(8) The fiber-reinforced polypropylene material prepared by the invention has the characteristics of high strength and modulus, electric and heat conduction, high temperature resistance, excellent dimensional stability and the like, and can completely meet the functional requirements of heat exchange parts of automobiles, machinery and chemical engineering in severe environments on the material.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto. For process parameters not specifically noted, reference may be made to conventional techniques.
Example 1
The present example provides a fiber reinforced polypropylene material and a method for preparing the same.
The fiber-reinforced polypropylene material is prepared from the following components in percentage by mass:
20% of high-crystalline homopolypropylene (brand: PPMM20-S, Mitsubishi Kagaku, China petrochemical Co., Ltd.), 30% of polyketone (brand: M230A, Korea-Daxing corporation), 30% of chopped carbon fiber (brand: PX35CA0250-65, Japan Dongli Co., Ltd.), 5% of aluminum fiber (dimensional length 4mm, fiber diameter 90um, Xinyu Jintong practical Co., Ltd.), 13.6% of graphene (brand: KNG-T181-2, Karman graphene technology Co., Ltd.), 1% of compatibilizer (brand: 1001, PP-g-MAH, Iseli Co., Ltd.), 0.1% of antioxidant 1790 (model: SONOX 626, U.S. Cyanite Co., Ltd.), 0.1% of antioxidant 626 (model: SONOX 626, Sanfeng Co., Ltd., Shandong city) and 0.2% of lubricant (calcium stearate 3818, Zhongming Yitai Co., Ltd.).
The preparation method of the fiber reinforced polypropylene material comprises the following steps:
after the materials are weighed, uniformly mixing chopped carbon fibers and aluminum fibers, adding the uniformly mixed chopped carbon fibers and aluminum fibers into a side feeding hopper of an extruder, adding the rest materials into a high-speed stirrer (the rotating speed is 2000rpm) to be stirred for 3 minutes, adding the uniformly stirred materials into a main feeding hopper of a parallel double-screw extruder with the length-diameter ratio of 48:1, and setting the temperatures of all sections of the extruder from the hopper to a die head as (total 12 regions): 180 ℃, 180 ℃, 210 ℃, 210 ℃, 210 ℃, 190 ℃, 190 ℃, 200 ℃, 200 ℃, 210 ℃, the screw rotating speed of a main machine is 500r/min, the frequency of a feeding screw of a main hopper is 25HZ, the feeding frequency of a side feeding hopper is 12HZ, and then the materials are blended, melted and extruded.
The above-mentioned grain strip that comes out through the extruder bush passes through the basin cooling, air-dries, then carries the pelleter to cut grain, can obtain the high performance fiber reinforcement's that length is 3 ~ 5mm polypropylene material.
Example 2
The present example provides a fiber reinforced polypropylene material and a method for preparing the same.
The fiber-reinforced polypropylene material is prepared from the following components in percentage by mass:
20% of high-crystalline homopolypropylene (brand: PPMM20-S, Mitsubishi Kagaku, China petrochemical Co., Ltd.), 20% of polyketone (brand: M230A, Korea-Daxing-Co., Ltd.), 20% of chopped carbon fiber (brand: PX35CA0250-65, Japan Toyoli Co., Ltd.), 5% of aluminum fiber (dimensional length 4mm, fiber diameter 90um, Xinyu Jing jin practical Co., Ltd.), 30% of graphene (brand: KNG-T181-2, Xiamena graphene technology Co., Ltd.), 4.6% of compatibilizer (brand: 1001, PP-g-MAH, Iseli-L., antioxidant 1790 is 0.1% (model: SONOX 626, Sanfeng Co., Ltd., Shandong Lin Yichen chemical Co., Ltd., Shandong) and 0.2% of lubricant (calcium stearate 3818, Zhongming-Ming-Yitai, Ltd.).
The preparation method of the fiber reinforced polypropylene material comprises the following steps:
after the materials are weighed, uniformly mixing chopped carbon fibers and aluminum fibers, adding the uniformly mixed chopped carbon fibers and aluminum fibers into a side feeding hopper of an extruder, adding the rest materials into a high-speed stirrer (the rotating speed is 2000rpm) to be stirred for 4 minutes, adding the uniformly stirred materials into a main feeding hopper of a parallel double-screw extruder with the length-diameter ratio of 48:1, and setting the temperatures of all sections of the extruder from the hopper to a die head as (total 12 regions): 190 ℃, 190 ℃, 220 ℃, 220 ℃, 220 ℃, 230 ℃, 200 ℃, 200 ℃, 210 ℃, 210 ℃, 220 ℃, the screw rotating speed of a main machine is 500r/min, the frequency of a feeding screw of a main hopper is 25HZ, the feeding frequency of a side feeding hopper is 10HZ, and then the materials are blended, melted and extruded.
The above-mentioned grain strip that comes out through the extruder bush passes through the basin cooling, air-dries, then carries the pelleter to cut grain, can obtain the high performance fiber reinforcement's that length is 3 ~ 5mm polypropylene material.
Example 3
The present example provides a fiber reinforced polypropylene material and a method for preparing the same.
The fiber-reinforced polypropylene material is prepared from the following components in percentage by mass:
30% of high-crystalline homopolypropylene (brand: PPMM20-S, China petrochemical Co., Ltd., famous division), 16.6% of polyketone (brand: M230A, Korea-Daxing-Co., Ltd.), 20% of short-cut carbon fiber (brand: CO70CP006-PEY, Korea Amos composites Co., Ltd.), 10% of aluminum fiber (fiber length 4mm, fiber diameter 90um, Xinyu jin-Tong industries Co., Ltd.), 20% of graphene (brand: KNG-T181-2, Xienmen Kanna graphene technology Co., Ltd.), 3% of a compatibilizer (brand: 1001, PP-g-MAH, Israeli Lang Co., Ltd.), 0.1% of an antioxidant 1790 (model: OX 1790, U.S. cyanogen specialization Co., Ltd.), 0.1% of an antioxidant 626 (model: SONOX 626, Shandong-Sanfeng-Co., Ltd.) and 0.2% of a calcium stearate lubricant (China Huashan Tai Co., Ltd.).
The preparation method of the fiber reinforced polypropylene material comprises the following steps:
after the materials are weighed, uniformly mixing chopped carbon fibers and aluminum fibers, adding the uniformly mixed chopped carbon fibers and aluminum fibers into a side feeding hopper of an extruder, adding the rest materials into a high-speed stirrer (the rotating speed is 2500rpm) to be stirred for 5 minutes, adding the uniformly stirred materials into a main feeding hopper of a parallel double-screw extruder with the length-diameter ratio of 48:1, and setting the temperatures of all sections of the extruder from the hopper to a die head as (total 12 regions): 210 ℃, 210 ℃, 240 ℃, 240 ℃, 240 ℃, 240 ℃, 220 ℃, 220 ℃, 230 ℃, 230 ℃, 240 ℃, 550r/min of screw rotation speed of a main machine, 30HZ of feeding screw frequency of a main hopper and 11HZ of feeding frequency of a side feeding hopper, and further blending, melting and extruding the materials.
The above-mentioned grain strip that comes out through the extruder bush passes through the basin cooling, air-dries, then carries the pelleter to cut grain, can obtain the high performance fiber reinforcement's that length is 3 ~ 5mm polypropylene material.
Example 4
The present example provides a fiber reinforced polypropylene material and a method for preparing the same.
The fiber-reinforced polypropylene material is prepared from the following components in percentage by mass:
50% of high-crystalline homopolypropylene (brand: PPHJ4045, Korea oil chemical Co., Ltd.), 10% of polyketone (brand: M230A, Korea Xiaoxing Co., Ltd.), 10% of short-cut carbon fiber (brand: CO70CP006-PEY, Korea Amos composites Co., Ltd.), 17% of aluminum fiber (fiber length 4mm, fiber diameter 90um, New City Jintong practical Co., Ltd.), 10% of graphene (brand: KNG-T181-2, Karman graphene technology Co., Ltd.), 2.4% of compatibilizer (brand: Xia MD-353D, PP-g-MAH, DuPont Co., Ltd.), 0.15% of antioxidant 1010 (model: SONOX 1010, Shandong Sanfeng Co., Ltd.), 0.15% of antioxidant 168 (model: SON 168, Shandong Lin Co., Ltd.) and 0.3% of lubricant (zinc stearate-2818, Zhonghua Ying Feng Co., Ltd.).
The preparation method of the fiber reinforced polypropylene material comprises the following steps:
after the materials are weighed, uniformly mixing chopped carbon fibers and aluminum fibers, adding the uniformly mixed chopped carbon fibers and aluminum fibers into a side feeding hopper of an extruder, adding the rest materials into a high-speed stirrer (the rotating speed is 2500rpm) to be stirred for 5 minutes, adding the uniformly stirred materials into a main feeding hopper of a parallel double-screw extruder with the length-diameter ratio of 48:1, and setting the temperatures of all sections of the extruder from the hopper to a die head as (total 12 regions): 200 ℃, 210 ℃, 210 ℃, 210 ℃, 220 ℃, 200 ℃, 200 ℃, 190 ℃, 210 ℃, 220 ℃, 220 ℃, 240 ℃, the screw rotating speed of a main machine is 550r/min, the frequency of a feeding screw of a main hopper is 30HZ, the feeding frequency of a side feeding hopper is 10HZ, and then the materials are blended, melted and extruded.
The above-mentioned grain strip that comes out through the extruder bush passes through the basin cooling, air-dries, then carries the pelleter to cut grain, can obtain the high performance fiber reinforcement's that length is 3 ~ 5mm polypropylene material.
Example 5
The present example provides a fiber reinforced polypropylene material and a method for preparing the same.
The fiber-reinforced polypropylene material is prepared from the following components in percentage by mass:
60% of high-crystalline homopolypropylene (brand: PPHJ4045, Korea oil chemical Co., Ltd.), 10% of polyketone (brand: M230A, Korea Xiaoxing Co., Ltd.), 10% of short-cut carbon fiber (brand: CO70CP006-PEY, Korea Amos composites Co., Ltd.), 5% of aluminum fiber (dimensional length 4mm, fiber diameter 90um, New City Jintong practical Co., Ltd.), 12% of graphene (brand: KNG-T181-2, Karman graphene technology Co., Ltd.), 2.4% of compatibilizer (brand: Xia MD-353D, PP-g-MAH, DuPont Co., Ltd.), 0.15% of antioxidant 1010 (model: SONOX 1010, Shandong Sanfeng Co., Ltd.), 0.15% of antioxidant 168 (model: SON 168, Shandong Lin Co., Ltd.) and 0.3% of lubricant (zinc stearate-2818, Zhonghua Ying Feng Co., Ltd.).
The preparation method of the fiber reinforced polypropylene material comprises the following steps:
after the materials are weighed, uniformly mixing chopped carbon fibers and aluminum fibers, adding the uniformly mixed chopped carbon fibers and aluminum fibers into a side feeding hopper of an extruder, adding the rest materials into a high-speed stirrer (the rotating speed is 2500rpm) to be stirred for 5 minutes, adding the uniformly stirred materials into a main feeding hopper of a parallel double-screw extruder with the length-diameter ratio of 48:1, and setting the temperatures of all sections of the extruder from the hopper to a die head as (total 12 regions): 200 ℃, 210 ℃, 210 ℃, 210 ℃, 220 ℃, 200 ℃, 200 ℃, 190 ℃, 210 ℃, 220 ℃, 220 ℃, 240 ℃, the screw rotating speed of a main machine is 650r/min, the frequency of a feeding screw of a main hopper is 40HZ, the feeding frequency of a side feeding hopper is 13HZ, and then the materials are blended, melted and extruded.
The above-mentioned grain strip that comes out through the extruder bush passes through the basin cooling, air-dries, then carries the pelleter to cut grain, can obtain the high performance fiber reinforcement's that length is 3 ~ 5mm polypropylene material.
Comparative example 1
This comparative example provides, as a comparative example to example 1, a fiber reinforced polypropylene material without the addition of polyketone and a method for its preparation.
The fiber-reinforced polypropylene material is prepared from the following components in percentage by mass:
50% of high-crystalline homo-polypropylene (brand: PPMM20-S, famous division of petrochemical Co., Ltd., China), 30% of short carbon fiber (brand: PX35CA0250-65, Toray Japan), 5% of aluminum fiber (dimensional length 4mm, fiber diameter 90um, Kingtong industries, Ltd., New Yun City), 13.6% of graphene (brand: KNG-T181-2, Xiamena graphene technology Co., Ltd.), 1% of compatibilizer (brand: 1001, PP-g-MAH, Israeli, Ltd.), 0.1% of antioxidant 1790 (model: 1790, Cyanox specializers Co., Ltd., USA), 0.1% of antioxidant 626 (model: SONOX 626, Sanfeng chemical Co., Ltd., Hiden, Shandong province) and 0.2% of lubricant (calcium stearate 3818, Zhongshan Huantai Tai chemical Co., Ltd.).
The preparation method of the fiber reinforced polypropylene material comprises the following steps:
after the materials are weighed, uniformly mixing chopped carbon fibers and aluminum fibers, adding the uniformly mixed chopped carbon fibers and aluminum fibers into a side feeding hopper of an extruder, adding the rest materials into a high-speed stirrer (the rotating speed is 2000rpm) to be stirred for 3 minutes, adding the uniformly stirred materials into a main feeding hopper of a parallel double-screw extruder with the length-diameter ratio of 48:1, and setting the temperatures of all sections of the extruder from the hopper to a die head as (total 12 regions): 180 ℃, 180 ℃, 210 ℃, 210 ℃, 210 ℃, 190 ℃, 190 ℃, 200 ℃, 200 ℃, 210 ℃, the screw rotating speed of a main machine is 500r/min, the frequency of a feeding screw of a main hopper is 25HZ, the feeding frequency of a side feeding hopper is 12HZ, and then the materials are blended, melted and extruded.
The above-mentioned grain strip that comes out through the extruder bush passes through the basin cooling, air-dries, then carries the pelleter to cut grain, can obtain the high performance fiber reinforcement's that length is 3 ~ 5mm polypropylene material.
Comparative example 2
This comparative example provides, as a comparative example to example 2, a fiber reinforced polypropylene material without the addition of aluminum fibers and a method for preparing the same.
The fiber-reinforced polypropylene material is prepared from the following components in percentage by mass:
20% of high-crystalline homopolypropylene (brand: PPMM20-S, a well-known division of China petrochemical Co., Ltd.), 20% of polyketone (brand: M230A, Korea-Daxing-Co., Ltd.), 25% of short carbon fiber (brand: PX35CA0250-65, Japan Dongli Co., Ltd.), 30% of graphene (brand: KNG-T181-2, Xiamena graphene technology Co., Ltd.), 4.6% of a compatibilizer (brand: 1001, PP-g-MAH, Israel Lianli Co., Ltd.), 0.1% of an antioxidant 1790 (model: 1790, U.S. Cyanite chemical Co., Ltd.), 0.1% of an antioxidant 626 (model: SONOX 626, Shandong-Xianfeng chemical Co., Ltd.) and 0.2% of a lubricant (calcium stearate 3818, Zhongshan-Huaming-Tai chemical Co., Ltd.).
The preparation method of the fiber reinforced polypropylene material comprises the following steps:
after the materials are weighed, uniformly mixing chopped carbon fibers and aluminum fibers, adding the uniformly mixed chopped carbon fibers and aluminum fibers into a side feeding hopper of an extruder, adding the rest materials into a high-speed stirrer (the rotating speed is 2000rpm) to be stirred for 4 minutes, adding the uniformly stirred materials into a main feeding hopper of a parallel double-screw extruder with the length-diameter ratio of 48:1, and setting the temperatures of all sections of the extruder from the hopper to a die head as (total 12 regions): 190 ℃, 190 ℃, 220 ℃, 220 ℃, 220 ℃, 230 ℃, 200 ℃, 200 ℃, 210 ℃, 210 ℃, 220 ℃, the screw rotating speed of a main machine is 500r/min, the frequency of a feeding screw of a main hopper is 25HZ, the feeding frequency of a side feeding hopper is 10HZ, and then the materials are blended, melted and extruded.
The above-mentioned grain strip that comes out through the extruder bush passes through the basin cooling, air-dries, then carries the pelleter to cut grain, can obtain the high performance fiber reinforcement's that length is 3 ~ 5mm polypropylene material.
Comparative example 3
This comparative example provides, as a comparative example to example 3, a fiber reinforced polypropylene material without the addition of chopped carbon fibers and a method of making the same.
The fiber-reinforced polypropylene material is prepared from the following components in percentage by mass:
30% of high-crystalline homopolypropylene (brand: PPMM20-S, Mitsubishi Kagaku, China petrochemical Co., Ltd.), 16.6% of polyketone (brand: M230A, Korea-Daxing-Co., Ltd.), 30% of aluminum fiber (dimensional length 4mm, fiber diameter 90um, Xinmai Jintong practical Co., Ltd.), 20% of graphene (brand: KNG-T181-2, Xiamena graphene technology Co., Ltd.), 3% of a compatibilizer (brand: 1001, PP-g-MAH, Israeli Co., Ltd.), 0.1% of an antioxidant 1790 (model: 1790, U.S. Cyanite chemical Co., Ltd.), 0.1% of an antioxidant 626 (model: SONOX 626, Sanyuntai chemical Co., Ltd., Shandong province) and 0.2% of a lubricant (calcium stearate 3818, Zhongshan-Huantai Tai chemical Co., Ltd.).
The preparation method of the fiber reinforced polypropylene material comprises the following steps:
after the materials are weighed, uniformly mixing chopped carbon fibers and aluminum fibers, adding the uniformly mixed chopped carbon fibers and aluminum fibers into a side feeding hopper of an extruder, adding the rest materials into a high-speed stirrer (the rotating speed is 2500rpm) to be stirred for 5 minutes, adding the uniformly stirred materials into a main feeding hopper of a parallel double-screw extruder with the length-diameter ratio of 48:1, and setting the temperatures of all sections of the extruder from the hopper to a die head as (total 12 regions): 210 ℃, 210 ℃, 240 ℃, 240 ℃, 240 ℃, 240 ℃, 220 ℃, 220 ℃, 230 ℃, 230 ℃, 240 ℃, 550r/min of screw rotation speed of a main machine, 30HZ of feeding screw frequency of a main hopper and 11HZ of feeding frequency of a side feeding hopper, and further blending, melting and extruding the materials.
The above-mentioned grain strip that comes out through the extruder bush passes through the basin cooling, air-dries, then carries the pelleter to cut grain, can obtain the high performance fiber reinforcement's that length is 3 ~ 5mm polypropylene material.
Comparative example 4
This comparative example provides, as a comparative example to example 4, a fiber-reinforced polypropylene material without added graphene and a method for preparing the same.
The fiber-reinforced polypropylene material is prepared from the following components in percentage by mass:
high-crystalline homopolypropylene 50% (brand: PPHJ4045, Korea oil chemical Co., Ltd.), polyketone 10% (brand: M230A, Korea Xiaoxing Co., Ltd.), chopped carbon fiber 20% (brand: CO70CP006-PEY, Korea Amos composites Co., Ltd.), aluminum fiber 17% (fiber length 4mm, fiber diameter 90um, Xinyu Jintong practical Co., Ltd.), compatibilizer 2.4% (brand: MD-353D, PP-g-MAH, DuPont Co., Ltd., USA), antioxidant 1010 0.15% (model: SONOX 1010, Shandong Lin City Sanfeng chemical Co., Ltd.), antioxidant 168 (model: SONOX 168, Shandong Lin City Sanfeng chemical Co., Ltd.) and lubricant 0.3% (zinc stearate BS-2818, Zhongshan Huaming Tai chemical Co., Ltd.)
The preparation method of the fiber reinforced polypropylene material comprises the following steps:
after the materials are weighed, uniformly mixing chopped carbon fibers and aluminum fibers, adding the uniformly mixed chopped carbon fibers and aluminum fibers into a side feeding hopper of an extruder, adding the rest materials into a high-speed stirrer (the rotating speed is 2500rpm) to be stirred for 5 minutes, adding the uniformly stirred materials into a main feeding hopper of a parallel double-screw extruder with the length-diameter ratio of 48:1, and setting the temperatures of all sections of the extruder from the hopper to a die head as (total 12 regions): 200 ℃, 210 ℃, 210 ℃, 210 ℃, 220 ℃, 200 ℃, 200 ℃, 190 ℃, 210 ℃, 220 ℃, 220 ℃, 240 ℃, the screw rotating speed of a main machine is 550r/min, the frequency of a feeding screw of a main hopper is 30HZ, the feeding frequency of a side feeding hopper is 12HZ, and then the materials are blended, melted and extruded.
The above-mentioned grain strip that comes out through the extruder bush passes through the basin cooling, air-dries, then carries the pelleter to cut grain, can obtain the high performance fiber reinforcement's that length is 3 ~ 5mm polypropylene material.
The composite materials obtained in examples 1 to 5 and comparative examples 1 to 4 were tested, and the test results are shown in the following table:
in comparison with example 1, when polypropylene was used as the base material in its entirety without adding polyketone resin, the tensile strength, impact strength and flexural strength of the material were all reduced.
Compared with the example 2, the compound mode of the chopped carbon fiber and the aluminum fiber is not adopted, and when the same amount of chopped carbon fiber is added, the tensile strength and the bending strength of the material are increased, and the surface resistance is reduced.
Compared with example 3, when the same amount of aluminum fiber is added without adopting a compounding manner of chopped carbon fiber and aluminum fiber, the tensile strength, flexural modulus and heat distortion temperature of the material are all reduced, and the electrical conductivity and thermal conductivity are all reduced.
Compared with example 4, when the graphene is not added and is changed into the same amount of chopped carbon fibers, the tensile strength, the impact strength, the bending strength and the bending modulus of the material are increased, the electric conductivity is improved, but the heat conductivity is reduced.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. The fiber reinforced polypropylene material is characterized by comprising the following raw materials in percentage by mass:
20-60% of high-crystalline homo-polypropylene;
10-30% of polyketone;
10-30% of short carbon fibers;
5-17% of aluminum fiber;
10-30% of graphene;
1-4.6% of a compatilizer;
0.2-0.3% of antioxidant;
0.2-0.3% of a lubricant;
the mass fraction of the raw materials is 100 percent;
the high-crystalline homopolymerized polypropylene is granular, and the mass flow rate of a melt at 230 ℃ and under the condition of 2.16KG is 20-60 g/10 min;
the polyketone is granular, and the mass flow rate of a melt at 240 ℃ and under the condition of 2.16KG is 100-300 g/10 min;
the length of the short carbon fiber is 2-5 mm, and the fiber diameter is 6-20 um;
the length of the aluminum fiber is 2-4 mm, and the fiber diameter is 20-90 um;
the graphene is flaky, the diameter of the microchip is 2-4 mm, and the stacking density is 0.31-0.39 g/ml.
2. The fiber reinforced polypropylene material of claim 1, wherein: the compatilizer is one or more than two of ethylene propylene diene monomer rubber grafted maleic anhydride EPDM-g-MAH, styrene-butadiene-styrene copolymer grafted maleic anhydride SBS-g-MAH and polyolefin thermoplastic elastomer grafted maleic anhydride TPO-g-MAH;
the antioxidant is 1010, 1,3, 5-tri (3, 5-di-tert-butyl-4-hydroxybenzyl) isocyanuric acid (antioxidant 3114), 1,3, 5-trimethyl-2, 4, 6-tri (3, 5-di-tert-butyl-4-hydroxybenzyl) benzene (antioxidant 330), one or more of 1,3, 5-tris (4-tert-butyl-3-hydroxy-2, 6-dimethylbenzyl) -1,3, 5-triazine-2, 4,6- (1H,3H,5H) -trione (antioxidant 1790), tris (nonylphenyl) phosphite (antioxidant TNPP), tris (2, 4-di-tert-butyl) phenyl phosphite (antioxidant 168) and bis (2, 4-di-tert-butylphenol) pentaerythritol diphosphite (antioxidant 626);
the lubricant is one or more than two of calcium stearate, zinc stearate, stearic acid, white oil and ethylene bisstearamide.
3. The fiber reinforced polypropylene material of claim 2, wherein: the compatilizer is one or two of ethylene-octene copolymer grafted maleic anhydride POE-g-MAH and polypropylene grafted maleic anhydride PP-g-MAH.
4. The fiber reinforced polypropylene material of claim 2, wherein:
the polyketone is M230A available from Korea Xiaoxing Co., Ltd;
the chopped carbon fiber is a chopped carbon fiber PX35CA0250-65 available from Dongli corporation of Japan or CO70CP006-PEY available from Amos composites corporation of Korea;
the aluminum fiber is the aluminum fiber purchased from Jintong industry Co., Ltd, New Yu City;
the graphene is KNG-T181-2 purchased from Xianan graphene technology of Xiamen, Inc.
5. A method for preparing a fiber reinforced polypropylene material according to any one of claims 1 to 4, comprising the steps of: uniformly mixing high-crystalline homo-polypropylene, polyketone, graphene, a compatilizer, an antioxidant and a lubricant to obtain a mixed material; and melting and extruding the mixed material and the mixed fiber of the chopped carbon fiber and the aluminum fiber, cooling and drying to obtain the fiber reinforced polypropylene material.
6. The method of producing a fiber-reinforced polypropylene material according to claim 5, wherein: the melt extrusion is carried out by adopting a parallel twin-screw extruder with the length-diameter ratio of 48: 1.
7. The method of producing a fiber-reinforced polypropylene material according to claim 6, wherein: during melt extrusion, the mixed material and the mixed fiber are added from a main feeding hopper and a side feeding hopper of the parallel double-screw extruder respectively.
8. The method of producing a fiber-reinforced polypropylene material according to claim 7, wherein: the rotating speed of the melt-extruded screw is 400-800 r/min, the frequency of the main hopper feeding screw is 15-40 Hz, and the feeding frequency of the side feeding hopper is correspondingly adjusted according to the adding proportion of fibers.
9. The method of producing a fiber-reinforced polypropylene material according to claim 8, wherein: the melt extrusion is carried out in 12 temperature sections, and the temperatures of all the sections from the hopper to the die head are 180-210 ℃, 210-240 ℃, 190-220 ℃, 200-230 ℃ and 210-240 ℃ respectively.
10. The method for preparing a fiber-reinforced polypropylene material according to any one of claims 5 to 9, wherein:
the uniformly mixing method comprises the following steps of stirring for 2-8 minutes at a rotating speed of 2000-3000 rpm:
the cooling mode is water tank cooling;
the drying mode is drying by a fan;
and after drying, cutting the extruded fiber reinforced polypropylene material into particles to obtain the fiber reinforced polypropylene material with the length of 3-5 mm.
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| CN111411417A (en) * | 2020-05-15 | 2020-07-14 | 天津工业大学 | A kind of graphene reinforced polyketone fiber and preparation method thereof |
| CN115028983A (en) * | 2022-06-27 | 2022-09-09 | 沃德夫聚合物(上海)有限公司 | Low-cost POK/PP alloy with good chemical resistance and preparation method and application thereof |
| CN115403859A (en) * | 2022-09-15 | 2022-11-29 | 广东圆融新材料有限公司 | Halogen-free flame-retardant polypropylene-polyketone alloy material and preparation method and application thereof |
| CN115873392A (en) * | 2022-11-21 | 2023-03-31 | 昆山聚威工程塑料有限公司 | Low-cost and high-toughness POK/PP alloy high polymer material and preparation method thereof |
| CN117209900A (en) * | 2023-08-23 | 2023-12-12 | 黄河三角洲京博化工研究院有限公司 | Novel polypropylene foaming material and preparation method and application thereof |
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