CN115109412A - Toughness-enhanced high-insulation polyphenylene sulfide composite material and preparation method thereof - Google Patents
Toughness-enhanced high-insulation polyphenylene sulfide composite material and preparation method thereof Download PDFInfo
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- CN115109412A CN115109412A CN202210965835.5A CN202210965835A CN115109412A CN 115109412 A CN115109412 A CN 115109412A CN 202210965835 A CN202210965835 A CN 202210965835A CN 115109412 A CN115109412 A CN 115109412A
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- polyphenylene sulfide
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- insulation
- composite material
- coupling agent
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- 239000004734 Polyphenylene sulfide Substances 0.000 title claims abstract description 65
- 229920000069 polyphenylene sulfide Polymers 0.000 title claims abstract description 65
- 238000009413 insulation Methods 0.000 title claims abstract description 22
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000007822 coupling agent Substances 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 39
- 239000000843 powder Substances 0.000 claims abstract description 21
- 239000003365 glass fiber Substances 0.000 claims abstract description 20
- 239000000919 ceramic Substances 0.000 claims abstract description 19
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 13
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003063 flame retardant Substances 0.000 claims abstract description 10
- 239000003381 stabilizer Substances 0.000 claims abstract description 10
- 239000012745 toughening agent Substances 0.000 claims abstract description 9
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 48
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 27
- 238000003756 stirring Methods 0.000 claims description 27
- 239000000835 fiber Substances 0.000 claims description 14
- 239000002033 PVDF binder Substances 0.000 claims description 12
- 229910001593 boehmite Inorganic materials 0.000 claims description 12
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 claims description 12
- -1 polypropylene Polymers 0.000 claims description 12
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 12
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 9
- 229920006231 aramid fiber Polymers 0.000 claims description 9
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims description 9
- ZQKXQUJXLSSJCH-UHFFFAOYSA-N melamine cyanurate Chemical compound NC1=NC(N)=NC(N)=N1.O=C1NC(=O)NC(=O)N1 ZQKXQUJXLSSJCH-UHFFFAOYSA-N 0.000 claims description 9
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 9
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 9
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 9
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 9
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 8
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 6
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 3
- XNCOSPRUTUOJCJ-UHFFFAOYSA-N Biguanide Chemical compound NC(N)=NC(N)=N XNCOSPRUTUOJCJ-UHFFFAOYSA-N 0.000 claims description 3
- 229940123208 Biguanide Drugs 0.000 claims description 3
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 3
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 3
- 239000004642 Polyimide Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 claims description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 3
- 150000004645 aluminates Chemical class 0.000 claims description 3
- 229910052454 barium strontium titanate Inorganic materials 0.000 claims description 3
- AOWKSNWVBZGMTJ-UHFFFAOYSA-N calcium titanate Chemical compound [Ca+2].[O-][Ti]([O-])=O AOWKSNWVBZGMTJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- OLLFKUHHDPMQFR-UHFFFAOYSA-N dihydroxy(diphenyl)silane Chemical compound C=1C=CC=CC=1[Si](O)(O)C1=CC=CC=C1 OLLFKUHHDPMQFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- JKBYAWVSVVSRIX-UHFFFAOYSA-N octadecyl 2-(1-octadecoxy-1-oxopropan-2-yl)sulfanylpropanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C(C)SC(C)C(=O)OCCCCCCCCCCCCCCCCCC JKBYAWVSVVSRIX-UHFFFAOYSA-N 0.000 claims description 3
- RPQRDASANLAFCM-UHFFFAOYSA-N oxiran-2-ylmethyl prop-2-enoate Chemical compound C=CC(=O)OCC1CO1 RPQRDASANLAFCM-UHFFFAOYSA-N 0.000 claims description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 3
- 239000010452 phosphate Substances 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920002530 polyetherether ketone Polymers 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 235000019260 propionic acid Nutrition 0.000 claims description 3
- 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 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 3
- 230000004580 weight loss Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 238000010292 electrical insulation Methods 0.000 abstract description 4
- 230000001502 supplementing effect Effects 0.000 description 12
- 238000002474 experimental method Methods 0.000 description 6
- TXDNPSYEJHXKMK-UHFFFAOYSA-N sulfanylsilane Chemical compound S[SiH3] TXDNPSYEJHXKMK-UHFFFAOYSA-N 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 229920006351 engineering plastic Polymers 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/02—Polythioethers; Polythioether-ethers
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a toughness-enhanced high-insulation polyphenylene sulfide composite material which comprises the following raw materials in parts by weight: 30-60% of polyphenylene sulfide resin, 20-30% of glass fiber, 5-20% of reinforcing fiber, 5-20% of ceramic powder, 5-10% of flame retardant, 5-12% of toughening agent, 1-5% of stabilizer, 0.2-0.6% of coupling agent and 0.3-1% of crosslinking agent. The invention also discloses a preparation method thereof, and the toughness-enhanced high-insulation polyphenylene sulfide composite material and the preparation method thereof are adopted, so that the production process is simple, the toughness, the impact strength, the compression resistance and the wear resistance of the modified material are enhanced, the flame retardance and the electrical insulation property of the PPS modified material are improved, and the application range of the PPS modified material in the fields of engine parts, new energy batteries and the like is further expanded.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a toughness-enhanced high-insulation polyphenylene sulfide composite material and a preparation method thereof.
Background
Polyphenylene Sulfide (PPS) is a semi-crystalline special engineering plastic, is the first of six special engineering plastics, and is widely applied to the fields of automobile parts, electronic and electric appliances, household electrical appliances, machining, environmental protection engineering, aerospace and the like.
As a novel special engineering plastic with the highest cost performance at present, the polyphenylene sulfide has excellent thermodynamic property. The high-temperature-resistant glass fiber reinforced plastic has excellent thermal stability and excellent high-temperature resistance, the glass transition temperature is about 90 ℃, the load thermal deformation temperature is 120 ℃, the melting point is as high as 285 ℃, and the thermal decomposition temperature in air is about 440-450 ℃. The thermal deformation temperature after modification treatment can reach 240-260 ℃. The light weight and excellent thermal stability of the PPS can replace part of metal materials to be applied to the fields of automobile light weight, new energy battery production and the like. The modified PPS can have high chemical corrosion resistance and high oxidation resistance at the same time, and the properties further expand the use of the PPS in high temperature resistance, corrosion resistance and other environments.
However, unlike metallic materials, PPS has poor toughness, impact resistance, and compression resistance, which limits the use of PPS in the related art. Along with the development of light weight of automobiles and the popularization of new energy automobiles, more and more traditional automobile parts and new energy battery manufacturers can select high-performance special engineering plastics as main raw materials of products of the automobiles, and the requirements on the novel special engineering plastics, particularly PPS with the highest cost performance are higher.
PPS is used in industrial production to blend with Glass Fiber (GF), inorganic filler (MD) to improve its mechanical properties. The PPS modified material prepared in the way has the characteristics of light weight, low price and excellent performance. Research shows that the mechanical property of PPS can be improved to a certain extent by blending PPS with GF and inorganic fillers such as graphite powder, calcium carbonate, kaolin and the like, but the traditional inorganic minerals have poor wettability and adhesion with PPS, and are easy to precipitate or aggregate in the production process, so that stress concentration is generated in PPS, and the product performance is influenced. In order to ensure the plasticity of the modified material, increase the integrity and the aesthetic degree of a finished piece and avoid the problems of flash and the like, a large amount of glass fibers cannot be used for increasing the toughness of the modified material in the production process.
Disclosure of Invention
The invention aims to provide a toughness-enhanced high-insulation polyphenylene sulfide composite material and a preparation method thereof, the production process is simple, the toughness, the impact strength, the compression resistance and the wear resistance of a modified material are enhanced, the flame retardance and the electrical insulation property of the PPS modified material are improved, and the application range of the PPS modified material in the fields of engine parts, new energy batteries and the like is further expanded.
In order to achieve the purpose, the invention provides a toughness-enhanced high-insulation polyphenylene sulfide composite material which comprises the following raw materials in parts by weight:
30-60% of polyphenylene sulfide resin, 20-30% of glass fiber, 5-20% of reinforcing fiber, 5-20% of ceramic powder, 5-10% of flame retardant, 5-12% of toughening agent, 1-5% of stabilizer, 0.2-0.6% of coupling agent and 0.3-1% of crosslinking agent.
Preferably, the reinforcing fiber is one or a mixture of several of aramid fiber, polyester fiber, polypropylene fiber and polyvinylidene fluoride.
Preferably, the glass fiber is one or a mixture of more of boehmite (gamma-AlOH), alumina, zirconium dioxide, silicon nitride, barium strontium titanate and calcium titanate.
Preferably, the flame retardant is one or a mixture of melamine cyanurate, biguanide phosphate, diphenyldihydroxysilane and tricresyl phosphate.
Preferably, the toughening agent is one or a mixture of polyether-ether-ketone, polyimide, polyvinyl pyrrolidone and polyethylene oxide.
Preferably, the stabilizer is one or a mixture of polytetrafluoroethylene, polyvinylidene fluoride, beta- (4-hydroxyphenyl-3, 5-di-tert-butyl) propionic acid, n-octadecyl alcohol and dioctadecyl thiodipropionate.
Preferably, the crosslinking agent is one or a mixture of more of glycidyl methacrylate, glycidyl acrylate, vinyl acetate, methyl (meth) acrylate and polyolefin grafted maleic anhydride.
Preferably, the coupling agent is one or a mixture of silane coupling agent, phthalate coupling agent and aluminate coupling agent.
A preparation method of a toughness-enhanced high-insulation polyphenylene sulfide composite material comprises the following steps:
s1, treating the glass fiber with a coupling agent to obtain a component A;
s2, treating the ceramic powder with a coupling agent to obtain a component B;
s3, stirring the reinforced fibers and the cross-linking agent in a stirrer for 3-5min, and then placing the stirred reinforced fibers and the cross-linking agent in an oven for heating for 2h to obtain a component C;
s4, stirring the polyphenylene sulfide resin, the flexibilizer and the component C in a high-speed stirrer for 8min, adding the coupling agent, the stabilizing agent and the flame retardant, and stirring for 3min to obtain a mixture D;
s5, adding the component D through a main feeding port of a double-screw extruder, adding the component A and the component B through two side feeding ports of the extruder respectively, and controlling the adding proportion of the component A, B, D through a feeding port weight loss scale;
and S6, carrying out melt extrusion, cooling and granulating to obtain the modified material.
Therefore, the toughness-enhanced high-insulation polyphenylene sulfide composite material and the preparation method thereof have the advantages that the production process is simple, the toughness, the impact strength, the compression resistance and the wear resistance of the modified material are enhanced, the flame retardance and the electrical insulation property of the PPS modified material are improved, and the application range of the PPS modified material in the fields of engine parts, new energy batteries and the like is further expanded.
The technical solution of the present invention is further described in detail by the following examples.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples.
Examples
The invention provides a toughness-enhanced high-insulation polyphenylene sulfide composite material which comprises the following raw materials in parts by weight:
30-60% of polyphenylene sulfide resin, 20-30% of glass fiber, 5-20% of reinforcing fiber, 5-20% of ceramic powder, 5-10% of flame retardant, 5-12% of toughening agent, 1-5% of stabilizer, 0.2-0.6% of coupling agent and 0.3-1% of cross-linking agent.
The reinforced fiber is one or a mixture of several of aramid fiber, polyester fiber, polypropylene fiber and polyvinylidene fluoride. The glass fiber is one or a mixture of more of boehmite (gamma-AlOH), alumina, zirconium dioxide, silicon nitride, barium strontium titanate and calcium titanate. The flame retardant is one or a mixture of more of melamine cyanurate, biguanide phosphate, diphenyl dihydroxyl silane and tricresyl phosphate. The toughening agent is one or a mixture of polyether-ether-ketone, polyimide, polyvinyl pyrrolidone and polyethylene oxide. The stabilizer is one or a mixture of more of polytetrafluoroethylene, polyvinylidene fluoride, beta- (4-hydroxyphenyl-3, 5-di-tert-butyl) propionic acid, n-octadecyl alcohol and dioctadecyl thiodipropionate. The cross-linking agent is one or a mixture of more of glycidyl methacrylate, glycidyl acrylate, vinyl acetate, methyl (meth) acrylate and polyolefin grafted maleic anhydride. The coupling agent is one or a mixture of silane coupling agent, phthalate coupling agent and aluminate coupling agent.
A preparation method of a toughness-enhanced high-insulation polyphenylene sulfide composite material comprises the following steps:
s1, treating the glass fiber with a coupling agent to obtain a component A;
s2, treating the ceramic powder with a coupling agent to obtain a component B;
s3, stirring the reinforced fibers and the cross-linking agent in a stirrer for 3-5min, and then placing the stirred reinforced fibers and the cross-linking agent in an oven for heating for 2h to obtain a component C;
s4, stirring the polyphenylene sulfide resin, the toughening agent and the component C in a high-speed stirrer for 8min, adding the coupling agent, the stabilizing agent and the flame retardant, and stirring for 3min to obtain a mixture D;
s5, adding the component D through a main feeding port of a double-screw extruder, adding the component A and the component B through two side feeding ports of the extruder respectively, and controlling the adding proportion of the component A, B, D through a feeding port weight loss scale;
and S6, carrying out melt extrusion, cooling and granulating to obtain the modified material.
Example 1
(1) 25% by mass of the alkali-free glass fiber was treated with a silane coupling agent (specifically, a mercaptosilane coupling agent).
(2) Treating 12% by mass of 500-mesh alumina ceramic powder by using a coupling agent, wherein the type of the coupling agent is the same as that in the step (1).
(3) Stirring 8 mass percent of aramid fiber and 0.4 mass percent of glycidyl methacrylate in a high-speed stirrer for 3min, and placing the mixture in a drying oven to dry for 2h at 120 ℃.
(4) And (3) putting 50% by mass of polyphenylene sulfide resin and 6% by mass of polyvinylpyrrolidone into a medium-high speed stirrer, stirring for 8min, adding 0.4% by mass of polyvinylidene fluoride, 0.5% by mass of polytetrafluoroethylene and 5% by mass of melamine cyanurate, and continuously stirring for 4 min.
(5) Adding the mixture prepared in the step (4) into a main feeding port of a double-screw extruder, respectively adding the mixture obtained in the step (1) and the mixture obtained in the step (2) into two material supplementing bins, and setting the blanking proportion of the main feeding bin and the two material supplementing bins to be 6: 3: 1.
(6) the screw temperature of the twin-screw extruder in the experiment was controlled as follows: the second zone is 270 ℃, the third zone is 275 ℃, the fourth zone is 278 ℃, the fifth zone is 280 ℃, the sixth zone is 295 ℃, the seventh zone is 300 ℃, the eighth zone is 310 ℃ and the head temperature is 310 ℃.
Example 2
(1) 25% by mass of the alkali-free glass fiber was treated with a silane coupling agent (specifically, a mercaptosilane coupling agent).
(2) Treating 12% of 500 mesh boehmite ceramic powder by mass with a coupling agent, wherein the type of the coupling agent is the same as that in the step (1).
(3) Stirring 8 mass percent of aramid fiber and 0.4 mass percent of glycidyl methacrylate in a high-speed stirrer for 3min, and placing the mixture in a drying oven to dry for 2h at 120 ℃.
(4) And (3) putting 50% by mass of polyphenylene sulfide resin and 6% by mass of polyvinylpyrrolidone into a medium-high speed stirrer, stirring for 8min, adding 0.4% by mass of polyvinylidene fluoride, 0.5% by mass of polytetrafluoroethylene and 5% by mass of melamine cyanurate, and continuously stirring for 4 min.
(5) Adding the mixture prepared in the step (4) into a main feeding port of a double-screw extruder, respectively adding the mixture obtained in the step (1) and the mixture obtained in the step (2) into two material supplementing bins, and setting the blanking proportion of the main feeding bin and the two material supplementing bins to be 6: 3: 1.
(6) the screw temperature of the twin-screw extruder in the experiment was controlled as follows: 275 ℃ in the second zone, 275 ℃ in the third zone, 280 ℃ in the fourth zone, 280 ℃ in the fifth zone, 295 ℃ in the sixth zone, 300 ℃ in the seventh zone, 310 ℃ in the eighth zone and 310 ℃ in the head.
Example 3
(1) 25% by mass of the alkali-free glass fiber was treated with a silane coupling agent (specifically, a mercaptosilane coupling agent).
(2) Treating 12% by mass of ceramic powder by using a coupling agent, wherein the type of the coupling agent is the same as that in the step (1), and the ratio of alumina to zirconia in the ceramic powder is 2: 1 (both alumina and zirconia are 500 mesh).
(3) Stirring 8 mass percent of aramid fiber and 0.4 mass percent of glycidyl methacrylate in a high-speed stirrer for 3min, and placing the mixture in a drying oven to dry for 2h at 120 ℃.
(4) And (3) putting 50% by mass of polyphenylene sulfide resin and 6% by mass of polyvinylpyrrolidone into a medium-high speed stirrer, stirring for 8min, adding 0.4% by mass of polyvinylidene fluoride, 0.5% by mass of polytetrafluoroethylene and 5% by mass of melamine cyanurate, and continuously stirring for 4 min.
(5) Adding the mixture prepared in the step (4) into a main feeding port of a double-screw extruder, respectively adding the mixture obtained in the step (1) and the mixture obtained in the step (2) into two material supplementing bins, and setting the blanking proportion of the main feeding bin and the two material supplementing bins to be 6: 3: 1.
(6) the screw temperature of the twin-screw extruder in the experiment was controlled as follows: 275 ℃ in the second zone, 275 ℃ in the third zone, 280 ℃ in the fourth zone, 280 ℃ in the fifth zone, 295 ℃ in the sixth zone, 300 ℃ in the seventh zone, 310 ℃ in the eighth zone and 310 ℃ in the head.
Example 4
(1) 25% by mass of the alkali-free glass fiber was treated with a silane coupling agent (specifically, a mercaptosilane coupling agent).
(2) Treating 12% by mass of ceramic powder with a coupling agent, wherein the type of the coupling agent is the same as that in the step (1), and the ratio of boehmite to zirconia in the ceramic powder is 2: 1 (both boehmite and zirconia 500 mesh).
(3) Stirring 8 mass percent of aramid fiber and 0.4 mass percent of glycidyl methacrylate in a high-speed stirrer for 3min, and placing the mixture in a drying oven to dry for 2h at 120 ℃.
(4) And (3) putting 50% by mass of polyphenylene sulfide resin and 6% by mass of polyvinylpyrrolidone into a medium-high speed stirrer, stirring for 8min, adding 0.4% by mass of polyvinylidene fluoride, 0.5% by mass of polytetrafluoroethylene and 5% by mass of melamine cyanurate, and continuously stirring for 4 min.
(5) Adding the mixture prepared in the step (4) into a main feeding port of a double-screw extruder, respectively adding the mixture obtained in the step (1) and the mixture obtained in the step (2) into two material supplementing bins, and setting the blanking proportion of the main feeding bin and the two material supplementing bins to be 6: 3: 1.
(6) the screw temperature of the twin-screw extruder in the experiment was controlled as follows: 275 ℃ in the second zone, 280 ℃ in the third zone, 280 ℃ in the fourth zone, 285 ℃ in the fifth zone, 295 ℃ in the sixth zone, 300 ℃ in the seventh zone, 310 ℃ in the eighth zone and 310 ℃ in the head.
Example 5
(1) 25% by mass of the alkali-free glass fiber was treated with a silane coupling agent (specifically, a mercaptosilane coupling agent).
(2) Treating 12% by mass of ceramic powder with a coupling agent, wherein the type of the coupling agent is the same as that in the step (1), and the ratio of boehmite to zirconia in the ceramic powder is 1: 1 (both boehmite and zirconia 500 mesh).
(3) Stirring 8 mass percent of aramid fiber and 0.4 mass percent of glycidyl methacrylate in a high-speed stirrer for 3min, and placing the mixture in an oven to be dried for 2h at 120 ℃.
(4) And (3) putting 50% by mass of polyphenylene sulfide resin and 6% by mass of polyvinylpyrrolidone into a medium-high speed stirrer, stirring for 8min, adding 0.4% by mass of polyvinylidene fluoride, 0.5% by mass of polytetrafluoroethylene and 5% by mass of melamine cyanurate, and continuously stirring for 4 min.
(5) Adding the mixture prepared in the step (4) into a main feeding port of a double-screw extruder, respectively adding the mixture obtained in the step (1) and the mixture obtained in the step (2) into two material supplementing bins, and setting the blanking proportion of the main feeding bin and the two material supplementing bins to be 6: 3: 1.
(6) the screw temperature of the twin-screw extruder in the experiment was controlled as follows: 280 ℃ in the second region, 280 ℃ in the third region, 285 ℃ in the fourth region, 285 ℃ in the fifth region, 295 ℃ in the sixth region, 300 ℃ in the seventh region, 310 ℃ in the eighth region and 310 ℃ in the head.
Example 6
(1) 25% by mass of the alkali-free glass fiber was treated with a silane coupling agent (specifically, a mercaptosilane coupling agent).
(2) Treating 12% by mass of ceramic powder with a coupling agent, wherein the type of the coupling agent is the same as that in the step (1), and the ratio of boehmite to zirconia in the ceramic powder is 1: 2 (both boehmite and zirconia 500 mesh).
(3) Stirring 8 mass percent of aramid fiber and 0.4 mass percent of glycidyl methacrylate in a high-speed stirrer for 3min, and placing the mixture in a drying oven to dry for 2h at 120 ℃.
(4) And (3) putting 50% by mass of polyphenylene sulfide resin and 6% by mass of polyvinylpyrrolidone into a medium-high speed stirrer, stirring for 8min, adding 0.4% by mass of polyvinylidene fluoride, 0.5% by mass of polytetrafluoroethylene and 5% by mass of melamine cyanurate, and continuously stirring for 4 min.
(5) Adding the mixture prepared in the step (4) into a main feeding port of a double-screw extruder, respectively adding the mixture obtained in the step (1) and the mixture obtained in the step (2) into two material supplementing bins, and setting the blanking proportion of the main feeding bin and the two material supplementing bins to be 6: 3: 1.
(6) the screw temperature of the twin-screw extruder in the experiment was controlled as follows: 280 ℃ in the second zone, 280 ℃ in the third zone, 285 ℃ in the fourth zone, 285 ℃ in the fifth zone, 295 ℃ in the sixth zone, 300 ℃ in the seventh zone, 310 ℃ in the eighth zone and 310 ℃ in the head.
The performance of the polyphenylene sulfide modified material in the above examples was tested, and the data are shown in Table 1 below
TABLE 1
From the data in the table, it is understood that the toughness and insulation of the PPS material are enhanced after the reinforcing fiber and ceramic powder are treated. When the boehmite doping modified PPS material is added in the same proportion, the enhancement effect of the strength and the toughness of the PPS material is stronger than that of the PPS material modified by the alumina. And the strength of the PPS material is obviously enhanced after the zirconia powder is added into the two systems, which is related to the stronger rigidity of the zirconia, and when the proportion of the zirconia in the ceramic powder exceeds 1: after 1, the toughness of the PPS material is affected, and the toughness is reduced. And the insulating property of the PPS material can be improved by adding zirconia into the ceramic powder of alumina and boehmite. The mechanical strength and the insulating property are improved, and the use of the material in the fields of engine parts, new energy batteries and the like is further improved and expanded.
Therefore, the toughness-enhanced high-insulation polyphenylene sulfide composite material and the preparation method thereof have the advantages that the production process is simple, the toughness, the impact strength, the compression resistance and the wear resistance of the modified material are enhanced, the flame retardance and the electrical insulation property of the PPS modified material are improved, and the application range of the PPS modified material in the fields of engine parts, new energy batteries and the like is further expanded.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.
Claims (9)
1. The toughness-enhanced high-insulation polyphenylene sulfide composite material is characterized by comprising the following raw materials in parts by weight:
30-60% of polyphenylene sulfide resin, 20-30% of glass fiber, 5-20% of reinforcing fiber, 5-20% of ceramic powder, 5-10% of flame retardant, 5-12% of toughening agent, 1-5% of stabilizer, 0.2-0.6% of coupling agent and 0.3-1% of crosslinking agent.
2. The toughness-enhanced high-insulation polyphenylene sulfide composite material as claimed in claim 1, wherein: the reinforced fiber is one or a mixture of several of aramid fiber, polyester fiber, polypropylene fiber and polyvinylidene fluoride.
3. The toughness-enhanced high-insulation polyphenylene sulfide composite material as claimed in claim 1, wherein: the glass fiber is one or a mixture of more of boehmite (gamma-AlOH), alumina, zirconium dioxide, silicon nitride, barium strontium titanate and calcium titanate.
4. The toughness-enhanced high-insulation polyphenylene sulfide composite material as claimed in claim 1, wherein: the flame retardant is one or a mixture of more of melamine cyanurate, biguanide phosphate, diphenyl dihydroxyl silane and tricresyl phosphate.
5. The toughness-enhanced high-insulation polyphenylene sulfide composite material as claimed in claim 1, wherein: the toughening agent is one or a mixture of polyether-ether-ketone, polyimide, polyvinyl pyrrolidone and polyethylene oxide.
6. The toughness-enhanced high-insulation polyphenylene sulfide composite material as claimed in claim 1, wherein: the stabilizer is one or a mixture of more of polytetrafluoroethylene, polyvinylidene fluoride, beta- (4-hydroxyphenyl-3, 5-di-tert-butyl) propionic acid, n-octadecyl alcohol and dioctadecyl thiodipropionate.
7. The toughness-enhanced high-insulation polyphenylene sulfide composite material as claimed in claim 1, wherein: the cross-linking agent is one or a mixture of more of glycidyl methacrylate, glycidyl acrylate, vinyl acetate, methyl (meth) acrylate and polyolefin grafted maleic anhydride.
8. The toughness-enhanced high-insulation polyphenylene sulfide composite material as claimed in claim 1, wherein: the coupling agent is one or a mixture of silane coupling agent, phthalate coupling agent and aluminate coupling agent.
9. The preparation method of the toughness-enhanced high-insulation polyphenylene sulfide composite material as defined in any one of claims 1 to 8, comprising the steps of:
s1, treating the glass fiber with a coupling agent to obtain a component A;
s2, treating the ceramic powder with a coupling agent to obtain a component B;
s3, stirring the reinforced fibers and the cross-linking agent in a stirrer for 3-5min, and then placing the stirred reinforced fibers and the cross-linking agent in an oven for heating for 2h to obtain a component C;
s4, stirring the polyphenylene sulfide resin, the toughening agent and the component C in a high-speed stirrer for 8min, adding the coupling agent, the stabilizing agent and the flame retardant, and stirring for 3min to obtain a mixture D;
s5, adding the component D through a main feeding port of a double-screw extruder, adding the component A and the component B through two side feeding ports of the extruder respectively, and controlling the adding proportion of the component A, B, D through a feeding port weight loss scale;
and S6, carrying out melt extrusion, cooling and granulating to obtain the modified material.
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