CN104592620A - Resin/graphene conductive plastic master batch as well as preparation method and use thereof - Google Patents
Resin/graphene conductive plastic master batch as well as preparation method and use thereof Download PDFInfo
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- CN104592620A CN104592620A CN201510035628.XA CN201510035628A CN104592620A CN 104592620 A CN104592620 A CN 104592620A CN 201510035628 A CN201510035628 A CN 201510035628A CN 104592620 A CN104592620 A CN 104592620A
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- graphite
- resin
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- conductive plastic
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 171
- 229920003023 plastic Polymers 0.000 title claims abstract description 57
- 239000004033 plastic Substances 0.000 title claims abstract description 57
- 239000004594 Masterbatch (MB) Substances 0.000 title claims abstract description 49
- 229920005989 resin Polymers 0.000 title claims abstract description 48
- 239000011347 resin Substances 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 229910021389 graphene Inorganic materials 0.000 title abstract description 66
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 121
- 239000010439 graphite Substances 0.000 claims abstract description 121
- 239000002245 particle Substances 0.000 claims abstract description 76
- 238000000034 method Methods 0.000 claims abstract description 26
- 239000007822 coupling agent Substances 0.000 claims abstract description 19
- 239000012188 paraffin wax Substances 0.000 claims abstract description 18
- 238000005453 pelletization Methods 0.000 claims abstract description 12
- 238000005422 blasting Methods 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 58
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 58
- 229920001684 low density polyethylene Polymers 0.000 claims description 46
- 239000004702 low-density polyethylene Substances 0.000 claims description 46
- -1 graphite alkene Chemical class 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 17
- 235000011089 carbon dioxide Nutrition 0.000 claims description 17
- 238000004880 explosion Methods 0.000 claims description 16
- 238000001125 extrusion Methods 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 238000005469 granulation Methods 0.000 claims description 11
- 230000003179 granulation Effects 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 11
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 claims description 10
- 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 claims description 8
- 239000005995 Aluminium silicate Substances 0.000 claims description 7
- 235000012211 aluminium silicate Nutrition 0.000 claims description 7
- 238000002955 isolation Methods 0.000 claims description 7
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 7
- 239000013543 active substance Substances 0.000 claims description 6
- 239000003112 inhibitor Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 229910000019 calcium carbonate Inorganic materials 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 3
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 3
- 239000004141 Sodium laurylsulphate Substances 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 3
- 229920000053 polysorbate 80 Polymers 0.000 claims description 3
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 3
- 239000012298 atmosphere Substances 0.000 claims description 2
- 235000010216 calcium carbonate Nutrition 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims 1
- 239000001273 butane Substances 0.000 claims 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 10
- 238000009776 industrial production Methods 0.000 abstract description 2
- 239000004088 foaming agent Substances 0.000 abstract 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 abstract 1
- 239000003963 antioxidant agent Substances 0.000 abstract 1
- 230000003078 antioxidant effect Effects 0.000 abstract 1
- 239000008236 heating water Substances 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- 238000005187 foaming Methods 0.000 description 19
- 238000002156 mixing Methods 0.000 description 11
- 210000001163 endosome Anatomy 0.000 description 9
- 238000003756 stirring Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 239000002131 composite material Substances 0.000 description 5
- 229920003002 synthetic resin Polymers 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000002041 carbon nanotube Substances 0.000 description 4
- 229910021393 carbon nanotube Inorganic materials 0.000 description 4
- 239000011231 conductive filler Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000002322 conducting polymer Substances 0.000 description 3
- 229920001940 conductive polymer Polymers 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- SMZOGRDCAXLAAR-UHFFFAOYSA-N aluminium isopropoxide Chemical compound [Al+3].CC(C)[O-].CC(C)[O-].CC(C)[O-] SMZOGRDCAXLAAR-UHFFFAOYSA-N 0.000 description 2
- 238000013475 authorization Methods 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010013786 Dry skin Diseases 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 229920006258 high performance thermoplastic Polymers 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003786 synthesis 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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/16—Making expandable particles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
-
- 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
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- 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
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/08—Copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Dispersion Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Conductive Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a resin/graphene conductive plastic master as well as a blasting stripping preparation method thereof. The conductive plastic master batch consists of the following components in parts by weight: 10-30 parts of EVA (ethylene/vinyl acetate), 70-80 parts of graphite, 0.7-3 parts of a coupling agent, 0.1-2 parts of a surfactant, 0.2-0.8 part of paraffin and 0.1-0.4 part of an antioxidant. The preparation method comprises the following steps: extruding and pelletizing the components through a twin-screw extruder to obtain EVA/graphite small particles; then, heating water, the resin/graphite conductive master batches, a physical foaming agent and an isolating agent in a high-pressure kettle, and then quickly discharging under low pressure to obtain resin/graphene conductive plastic foamed master batch prepared by a blasting stripping method; and extruding and defoaming the conductive plastic foamed master batch through the twin-screw extruder to obtain the resin/graphene conductive plastic master batch. According to the method, the dissolving capacity of a supercritical physical foaming agent is sufficiently utilized, so that a graphite sheet layer can be stripped by expanding under a sudden pressure release condition when the supercritical physical foaming agent is penetrated into the graphite sheet layer. Due to the existence of the resin, the cluster of graphene is effectively blocked, and the obtained volume resistivity can be 0.005 Ohm.cm, so that the method is suitable for industrial production.
Description
Technical field
The present invention relates to conducting polymer foam material technical field, in particular, the present invention relates to a kind of resin/graphite alkene conductive plastic base particle and its production and use.
Background technology
Conductive polymeric composite is processed through methods such as synthesis, injection, mold pressing or extrusion mouldings by the good synthetic resins of electrical insulating property and various conductive filler material and other additive.Because it both had conducting function, simultaneously again with the superiority of macromolecular material, and cost is lower, is widely used in electronic applications.Conventional synthetic resins has PE, PS, PC, ABS, PA, PBT, PET, PPO, PPS, ethylene-vinyl acetate copolymer (EVA), Low Density Polyethylene (LDPE) and high-performance thermoplastics alloy etc.These synthetic resins not only have excellent chemical resistant properties, thermotolerance, rigidity, stretch-proof performance, also have the advantages such as excellent shock resistance, excellent processing fluidity, glossiness.But these synthetic resins need to have otherwise performance concurrently in the application, such as, when adopting EVA to prepare conductive plastics as polymeric matrix, need to introduce conductive filler material.Conductive filler material comprises steel fiber, metal sheet, conductive carbon fibre, Graphene, carbon black, carbon nanotube, metal alloy filler etc.Along with the modernization of science and technology and developing rapidly of electronic industry, will be increasing to the demand of this type material.Undeniable, functional type conducting polymer composite has become an indispensable part in social development and people's daily life, researches and develops novel conducing composite material and has very important significance, also have boundless application prospect.
Graphene is thin, the hardest nano material in known world, and thermal conductivity is up to 5300 W/mK, and higher than carbon nanotube and diamond, under normal temperature, its electronic mobility is more than 15000 cm
2/ Vs, again than CNT (carbon nano-tube) or silicon wafer height, and resistivity only about 10
-8Ω m, than copper or silver lower, be the material that world resistivity is minimum.Itself and plastics compound are prepared into Graphene/conducting polymer plastics, one of conductive filler material best beyond doubt.But the preparation method of Graphene is a lot, as (from bottom to top) method, chemical stripping method etc. of micromechanics stripping method, graphite oxide reduction method, deposition growing method, chemosynthesis, although these methods can obtain individual layer and bilayer graphene in varying degrees, partly can meet the research needs in laboratory, but output and efficiency too low, simultaneously some method because using strong acid, highly basic causes larger pollution to environment.Authorization Notice No. be CN 102765717 B patent discloses a kind of method preparing Graphene, the method is specially with normal hexane or propane as supercritical solvent, Graphite Powder 99 or Graphite Powder 99 and cosolvent are injected autoclave, after vacuumizing, under certain temperature and pressure, keep the regular hour in the supercritical state, slightly increase temperature and pressure subsequently, rupture disk explosion, is prepared into graphene product, but there is not been reported so far, to utilize this technique to prepare graphene/polymer resin.In addition, the preparation method of current matrix material mainly contains solution mixing, melting mixing, in-situ polymerization, even if the Graphene prepared, when Graphene and plastics compound are prepared conductive plastics, the dispersion problem of Graphene inside plastic substrate is still a great problem.Application number is the in-situ reduction preparation method that patent discloses a kind of polymer/graphene composite material of 201010191018.6, graphite oxide is first scattered in polymer emulsion by the method, then latex is carried out in-situ reducing, polymer/graphene composite emulsion is prepared again through techniques such as breakdown of emulsion, gel, dryings, but the method complex process, and the use still keeping away unavoidable hazardous chemical such as toluene, ethylbenzene; Application number is patent " a kind of preparation method of polymer-graphite alkene mixture " disclosed in 201310641974.3, Graphite Powder 99 and polymkeric substance is utilized to be all the advantage of granular powder, dry ball milling original position is used to peel off graphite linings, prepare the mixture of polymkeric substance and Graphene, but the method is in the process of dry ball milling, ball mill still can clash into Graphene, causes the destruction of graphene-structured, affects the performance of Graphene; Authorization Notice No. be CN1216096C patent discloses a kind of polymer/laminated inorganic nano composite material and mill shearing preparation method thereof, there is above-mentioned defect too.Therefore develop a kind of Graphene/resin conductive matrix material and environmental protection thereof, novel preparation technology is current problem demanding prompt solution.
Summary of the invention
In view of the deficiencies in the prior art, the object of the present invention is to provide a kind of resin/graphite alkene conductive plastic base particle, and applicable suitability for industrialized production, environment amenable blasting stripping prepare the method for this conductive plastic base particle and the purposes of this master batch.
In order to realize first object of the present invention, provide a kind of Graphene/resin conductive plastic master batch, contriver is studied by lot of experiments, obtains following technical scheme:
A kind of resin/graphite alkene conductive plastic base particle, is made up of each component of following weight part:
Resin 10-30 part
Graphite 70-80 part
Coupling agent 0.7-3 part
Tensio-active agent 0.1-2 part
Paraffin 0.2-0.8 part
Oxidation inhibitor 0.1-0.4 part
Wherein, described weight part, can be weight unit well known to those skilled in the art, such as gram, kilogram, kilogram, ton etc.
Described resin is ethylene-vinyl acetate copolymer (EVA), Low Density Polyethylene (LDPE) etc.
Described graphite mainly refers to crystalline flake graphite, aphanitic graphite, compact crystal shape graphite, expanded graphite etc., is preferably crystalline flake graphite.
Described coupling agent refers to silane coupling agent, titanate coupling agent, aluminic acid acid esters coupling agent, is preferably silane coupling agent, the tool γ saying optimum-(methacryloxypropyl) propyl trimethoxy silicane originally.
Described tensio-active agent refers to sodium laurylsulfonate, sodium lauryl sulphate, tween 80 etc., is preferably sodium laurylsulfonate.
Described paraffin refers to SEMI-REFINED PARAFFIN WAX, and Main Function promotes graphite dispersion.
Preferably, described oxidation inhibitor refers to one or more in antioxidant 1010, irgasfos 168, antioxidant 330 etc.
Second object of the present invention, is to provide a kind of method utilizing blasting stripping to prepare above-mentioned graphene conductive plastic master batch, comprises the steps:
(1) preparation of resin/graphite conducting master batch: described resin, graphite, tensio-active agent, coupling agent, paraffin and oxidation inhibitor are pressed described weight part through twin screw extruder extruding pelletization, obtain the resin/graphite Plastic conductive master batch of long 2 ~ 3mm, diameter 1.5 ~ 3mm;
(2) resin/graphite expands and peels off: by water, resin/graphite Plastic conductive master batch, physical isolation agent, pneumatogen one low pressure after heating that to coexist in autoclave is released, make Plastic conductive master batch generation explosion, graphite expansion is peeled off, specifically by described for step (1) obtained resin/graphite small-particle, physical isolation agent, water is weight part in 100:1:200(respectively) ratio be placed in autoclave, turn on agitator, and control reactor temperature under plastics fusing point in 20 ~ 40 DEG C, inject 3 ~ 50MPa pneumatogen, under plastic master batch in still and water being released to 1 normal atmosphere fast after constant temperature pressurize 30 ~ 90min, and keep constant pressure in autoclave, until in still poly-plastic master batch and water emptying, through sieving, the resin/graphite alkene expanded particle after explosion can be obtained,
(3) by the resin/graphite alkene expanded particle after the explosion obtained by step (2) again through twin-screw extrusion exhaust granulation, resin/graphite alkene conductive agglomerate.
Described twin screw extruder refers to parallel double-screw extruder general in the market, is applicable to powder and plastic extrusion modification.
Described physical isolation agent refers to calcium carbonate, kaolin, talcum powder etc., and its Main Function is dispersion separant.
Described pneumatogen be nitrogen, carbonic acid gas any one, optimum is carbonic acid gas.
Another object of the present invention is to provide a kind of conductive articles, described conductive articles utilizes conductive agglomerate described above for raw material, adds being prepared from other various plastics with arbitrary proportion to.
Compared with prior art, a kind of graphene conductive plastic master batch that the present invention relates to and blasting stripping preparation method tool thereof have the following advantages and improve: (1) the present invention utilizes pneumatogen to penetrate in the middle of the laminate structure of graphite, reduce graphite reactive force between layers, by unexpected step-down, graphite linings is separated with layer, become Graphene, resin is foamed simultaneously, the process of foaming is also the process that graphite is stripped, also contribute to Graphene to disperse further simultaneously, effectively prevent the gathering of Graphene; (2) water introduced of the present invention and physical isolation agent to make after the stripping prepared/Graphene particle adhesion; (3) in the resin/graphite alkene conductive plastics for preparing of the present invention, Graphene is not owing to mutually being reunited by plastic barrier, and conduct electricity very well, gained volume specific resistance is for can reach 0.005 Ω cm; (4) the present invention adopts blasting stripping legal system for resin/graphite alkene conductive plastics, and the preparation for resin/graphite alkene matrix material opens a new route, and the method does not need solvent, does not produce environmental pollution, is applicable to large-scale industrial production.
Embodiment
For a better understanding of the present invention, illustrate content of the present invention further below in conjunction with embodiment, but content of the present invention is not only confined to following embodiment.
Embodiment 1
(1) preparation of EVA/ graphite master batch: select EVA 30g, crystalline flake graphite 70g, γ-(methacryloxypropyl) propyl trimethoxy silicane coupling agent 0.7g, sodium laurylsulfonate 0.1g, 0.2g antioxidant 1010, SEMI-REFINED PARAFFIN WAX 0.2g in mixing machine with 900-1200 rev/min, stir 8 minutes under normal temperature, after add in twin screw extruder, this forcing machine length-to-diameter ratio is 40:1, screw diameter 65 mm, parallel double-screw extruder rotating speed 100-400 rev/min, the temperature of twin screw extruder from transportation section to discharge port is 110-120 DEG C, through extruding pelletizing growth 2 ~ 3mm, the EVA/ graphite master batch of diameter 1.5 ~ 2mm,
(2) EVA/ graphite expansion is peeled off: by EVA/ graphite master batch described in 100g step (1), 1g calcium carbonate and 200g water join in 5 liters of autoclaves, start agitator, rotating speed 600 revs/min, carbonic acid gas is passed into again after beginning to warm to 80 DEG C with per minute 3 DEG C, still internal pressure is made to reach 30MPa, high-pressure autoclave discharging mouth one end is opened in pressurize after 30 minutes, EVA/ graphite master batch and water are released at one atm, graphite can be obtained be stripped, EVA is by the EVA/ Graphene expanded particle after the foaming of foaming, in addition, continue to maintain agitator speed 600 revs/min while EVA/ Graphene expanded particle released by autoclave, and continue to pass into carbonic acid gas in autoclave, all the time maintaining still internal pressure is 30MPa, until still endosome is emptying,
(3) the EVA/ Graphene expanded particle after the explosion obtained in step (2) is vented granulation through twin-screw extrusion again, conduction EVA/ Graphene expanded particle, this particle volume resistivity is 0.01 Ω cm, and this raw material conductive agglomerate can add in other various plastics and make its goods of conductive articles by arbitrary proportion.
Embodiment 2
(1) preparation of EVA/ graphite master batch: select EVA 20g, aphanitic graphite 80g, distearyl acyl-oxygen aluminum isopropoxide acid esters 822 coupling agent 2g, sodium lauryl sulphate 0.15g, 0.2g antioxidant 1010, SEMI-REFINED PARAFFIN WAX 0.5g in mixing machine with 900-1200 rev/min, stir 8 minutes under normal temperature, after add in twin screw extruder, this forcing machine length-to-diameter ratio is 40:1, screw diameter 65 mm, parallel double-screw extruder rotating speed 100-400 rev/min, the temperature of twin screw extruder from transportation section to discharge port is 110-120 DEG C, through extruding pelletizing growth 2 ~ 3mm, diameter 1.5 ~ 2mm small-particle,
(2) EVA/ graphite expansion is peeled off: by EVA/ graphite master batch described in 100g step (1), 1g talcum powder and 200g water join in 5 liters of autoclaves, start agitator, rotating speed 600 revs/min, carbonic acid gas is passed into again after beginning to warm to 80 DEG C with per minute 3 DEG C, still internal pressure is made to reach 30MPa, high-pressure autoclave discharging mouth one end is opened in pressurize after 5 minutes, EVA/ graphite master batch and water are released at one atm, graphite can be obtained be stripped, EVA is by the EVA/ Graphene expanded particle after the foaming of foaming, in addition, continue to maintain agitator speed 600 revs/min while EVA/ Graphene expanded particle released by autoclave, and continue to pass into carbonic acid gas in autoclave, all the time maintaining still internal pressure is 5MPa, until still endosome is emptying,
(3) the EVA/ Graphene expanded particle after explosion step (2) obtained is again through twin-screw extrusion exhaust granulation, conduction EVA/ Graphene expanded particle, this particle volume resistivity is 0.2 Ω cm, and this raw material conductive agglomerate can add in other various plastics and make its goods of conductive articles by arbitrary proportion.
Embodiment 3
(1) preparation of EVA/ graphite master batch: select EVA 30g, crystalline flake graphite 70g, γ-(methacryloxypropyl) propyl trimethoxy silicane coupling agent 0.7g, sodium laurylsulfonate 0.1g, 0.2g irgasfos 168, SEMI-REFINED PARAFFIN WAX 0.4g in mixing machine with 900-1200 rev/min, stir 8 minutes under normal temperature, after add in twin screw extruder, this forcing machine length-to-diameter ratio is 40:1, screw diameter 65 mm, parallel double-screw extruder rotating speed 100-400 rev/min, the temperature of twin screw extruder from transportation section to discharge port is 110-120 DEG C, through extruding pelletizing growth 2 ~ 3mm, diameter 1.5 ~ 2mm small-particle,
(2) EVA/ graphite expansion is peeled off: by EVA/ graphite master batch described in 100g step (1), 1g calcium carbonate and 200g water join in 5 liters of autoclaves, start agitator, rotating speed 600 revs/min, carbonic acid gas is passed into again after beginning to warm to 80 DEG C with per minute 3 DEG C, still internal pressure is made to reach 50MPa, high-pressure autoclave discharging mouth one end is opened in pressurize after 30 minutes, EVA/ graphite master batch and water are released at one atm, graphite can be obtained be stripped, EVA is by the EVA/ Graphene expanded particle after the foaming of foaming, in addition, continue to maintain agitator speed 600 revs/min while EVA/ Graphene expanded particle released by autoclave, and continue to pass into carbonic acid gas in autoclave, all the time maintaining still internal pressure is 50MPa, until still endosome is emptying,
(3) the EVA/ Graphene expanded particle after explosion step (2) obtained is again through twin-screw extrusion exhaust granulation, conduction EVA/ Graphene expanded particle, this particle volume resistivity is 0.005 Ω cm, and this raw material conductive agglomerate can add in other various plastics and make its goods of conductive articles by arbitrary proportion.
Embodiment 4
(1) preparation of LDPE/ graphite master batch: select LDPE 30g, expanded graphite 70g, distearyl acyl-oxygen aluminum isopropoxide acid esters 822 coupling agent 0.7g, 0.1g tween 80, 0.2g antioxidant 1010, SEMI-REFINED PARAFFIN WAX 0.5g in mixing machine with 900-1200 rev/min, stir 8 minutes under normal temperature, after add in twin screw extruder, this forcing machine length-to-diameter ratio is 40:1, screw diameter 65 mm, parallel double-screw extruder rotating speed 100-400 rev/min, the temperature of twin screw extruder from transportation section to discharge port is 110-120 DEG C, through extruding pelletizing growth 2 ~ 3mm, diameter 1.5 ~ 2mm small-particle,
(2) LDPE/graphite expansion is peeled off: by LDPE/graphite master batch described in 100g step (1), 1g calcium carbonate and 200g water join in 5 liters of autoclaves, start agitator, rotating speed 600 revs/min, nitrogen is passed into again after beginning to warm to 110 DEG C with per minute 3 DEG C, still internal pressure is made to reach 30MPa, high-pressure autoclave discharging mouth one end is opened in pressurize after 30 minutes, LDPE/graphite master batch and water are released at one atm, graphite can be obtained be stripped, LDPE is by the LDPE/Graphene expanded particle after the foaming of foaming, in addition, continue to maintain agitator speed 600 revs/min while LDPE/Graphene expanded particle released by autoclave, and continue to pass into nitrogen in autoclave, all the time maintaining still internal pressure is 30MPa, until still endosome is emptying,
(3) LDPE/Graphene expanded particle after explosion step (2) obtained is again through twin-screw extrusion exhaust granulation, conduction LDPE/Graphene expanded particle, this particle volume resistivity is 0.08 Ω cm, and this raw material conductive agglomerate can add in other various plastics and make its goods of conductive articles by arbitrary proportion.
Embodiment 5
(1) preparation of LDPE/ graphite master batch: select LDPE 20g, , expanded graphite 80g, γ-(methacryloxypropyl) propyl trimethoxy silicane coupling agent 0.7g, sodium laurylsulfonate 0.1g, 0.2g antioxidant 330, SEMI-REFINED PARAFFIN WAX 0.8g in mixing machine with 900-1200 rev/min, stir 8 minutes under normal temperature, after add in twin screw extruder, this forcing machine length-to-diameter ratio is 40:1, screw diameter 65 mm, parallel double-screw extruder rotating speed 100-400 rev/min, the temperature of twin screw extruder from transportation section to discharge port is 110-120 DEG C, through extruding pelletizing growth 2 ~ 3mm, diameter 1.5 ~ 2mm small-particle,
(2) LDPE/graphite expansion is peeled off: by LDPE/graphite master batch described in 100g step (1), 1g kaolin and 200g water join in 5 liters of autoclaves, start agitator, rotating speed 600 revs/min, carbonic acid gas is passed into again after beginning to warm to 110 DEG C with per minute 3 DEG C, still internal pressure is made to reach 20MPa, high-pressure autoclave discharging mouth one end is opened in pressurize after 30 minutes, LDPE/graphite master batch and water are released at one atm, graphite can be obtained be stripped, LDPE is by the LDPE/Graphene expanded particle after the foaming of foaming, in addition, continue to maintain agitator speed 600 revs/min while LDPE/Graphene expanded particle released by autoclave, and continue to pass into carbonic acid gas in autoclave, all the time maintaining still internal pressure is 20MPa, until still endosome is emptying,
(3) LDPE/Graphene expanded particle after explosion step (2) obtained is again through twin-screw extrusion exhaust granulation, conduction LDPE/Graphene expanded particle, this particle volume resistivity is 0.15 Ω cm, and this raw material conductive agglomerate can add in other various plastics and make its goods of conductive articles by arbitrary proportion.
Embodiment 6
(1) preparation of EVA/ graphite master batch: select EVA 20g, aphanitic graphite 75g, NDZ-105 titanate coupling agent 2g, sodium laurylsulfonate 2g, 0.2g antioxidant 1010, SEMI-REFINED PARAFFIN WAX 0.6g in mixing machine with 900-1200 rev/min, stir 8 minutes under normal temperature, after add in twin screw extruder, this forcing machine length-to-diameter ratio is 40:1, screw diameter 65 mm, parallel double-screw extruder rotating speed 100-400 rev/min, the temperature of twin screw extruder from transportation section to discharge port is 110-120 DEG C, through extruding pelletizing growth 2 ~ 3mm, diameter 1.5 ~ 2mm small-particle,
(2) EVA/graphite expansion is peeled off: by EVA/graphite master batch described in 100g step (1), 1g kaolin and 200g water join in 5 liters of autoclaves, start agitator, rotating speed 600 revs/min, carbonic acid gas is passed into again after beginning to warm to 80 DEG C with per minute 3 DEG C, still internal pressure is made to reach 3MPa, high-pressure autoclave discharging mouth one end is opened in pressurize after 40 minutes, EVA/graphite master batch and water are released at one atm, graphite can be obtained be stripped, EVA is by the EVA/Graphene expanded particle after the foaming of foaming, in addition, continue to maintain agitator speed 600 revs/min while EVA/Graphene expanded particle released by autoclave, and continue to pass into carbonic acid gas in autoclave, all the time maintaining still internal pressure is 20MPa, until still endosome is emptying,
(3) EVA/Graphene expanded particle after explosion step (2) obtained is again through twin-screw extrusion exhaust granulation, conduction EVA/Graphene expanded particle, this particle volume resistivity is 0.008 Ω cm, and this raw material conductive agglomerate can add in other various plastics and make its goods of conductive articles by arbitrary proportion.
Embodiment 7
(1) preparation of EVA/ graphite master batch: select EVA 15g, crystalline flake graphite 70g, γ-(methacryloxypropyl) propyl trimethoxy silicane coupling agent 3g, sodium laurylsulfonate 0.1g, 0.4g irgasfos 168, SEMI-REFINED PARAFFIN WAX 0.5g in mixing machine with 900-1200 rev/min, stir 8 minutes under normal temperature, after add in twin screw extruder, this forcing machine length-to-diameter ratio is 40:1, screw diameter 65 mm, parallel double-screw extruder rotating speed 100-400 rev/min, the temperature of twin screw extruder from transportation section to discharge port is 110-120 DEG C, through extruding pelletizing growth 2 ~ 3mm, diameter 1.5 ~ 2mm small-particle,
(2) EVA/graphite expansion is peeled off: by EVA/graphite master batch described in 100g step (1), 1g kaolin and 200g water join in 5 liters of autoclaves, start agitator, rotating speed 600 revs/min, carbonic acid gas is passed into again after beginning to warm to 80 DEG C with per minute 3 DEG C, still internal pressure is made to reach 40MPa, high-pressure autoclave discharging mouth one end is opened in pressurize after 30 minutes, EVA/graphite master batch and water are released at one atm, graphite can be obtained be stripped, EVA is by the EVA/Graphene expanded particle after the foaming of foaming, in addition, continue to maintain agitator speed 600 revs/min while EVA/Graphene expanded particle released by autoclave, and continue to pass into carbonic acid gas in autoclave, all the time maintaining still internal pressure is 20MPa, until still endosome is emptying,
(3) EVA/Graphene expanded particle after explosion step (2) obtained is again through twin-screw extrusion exhaust granulation, conduction EVA/Graphene expanded particle, this particle volume resistivity is 0.19 Ω cm, and this raw material conductive agglomerate can add in other various plastics and make its goods of conductive articles by arbitrary proportion.
Embodiment 8
(1) preparation of LDPE/graphite master batch: select LDPE 20g, compact crystal shape graphite 80g, NDZ-105 titanate coupling agent coupling agent 0.7g, sodium laurylsulfonate 0.1g, 0.4g antioxidant 1010, SEMI-REFINED PARAFFIN WAX 0.2g in mixing machine with 900-1200 rev/min, stir 8 minutes under normal temperature, after add in twin screw extruder, this forcing machine length-to-diameter ratio is 40:1, screw diameter 65 mm, parallel double-screw extruder rotating speed 100-400 rev/min, the temperature of twin screw extruder from transportation section to discharge port is 110-120 DEG C, through extruding pelletizing growth 2 ~ 3mm, diameter 1.5 ~ 2mm small-particle,
(2) LDPE/graphite expansion is peeled off: by LDPE/graphite master batch described in 100g step (1), 1g kaolin and 200g water join in 5 liters of autoclaves, start agitator, rotating speed 600 revs/min, nitrogen is passed into again after beginning to warm to 110 DEG C with per minute 3 DEG C, still internal pressure is made to reach 10MPa, high-pressure autoclave discharging mouth one end is opened in pressurize after 30 minutes, LDPE/graphite master batch and water are released at one atm, graphite can be obtained be stripped, LDPE is by the LDPE/Graphene expanded particle after the foaming of foaming, in addition, continue to maintain agitator speed 600 revs/min while LDPE/Graphene expanded particle released by autoclave, and continue to pass into nitrogen in autoclave, all the time maintaining still internal pressure is 20MPa, until still endosome is emptying,
(3) LDPE/Graphene expanded particle after explosion step (2) obtained is again through twin-screw extrusion exhaust granulation, conduction LDPE/Graphene expanded particle, this particle volume resistivity is 0.097 Ω cm, and this raw material conductive agglomerate can add in other various plastics and make its goods of conductive articles by arbitrary proportion.
Embodiment 9
(1) preparation of LDPE/graphite master batch: select LDPE 30g, crystalline flake graphite 70g, γ-(methacryloxypropyl) propyl trimethoxy silicane coupling agent 1.2g, sodium laurylsulfonate 0.8g, 0.3g antioxidant 1010, SEMI-REFINED PARAFFIN WAX 0.6g in mixing machine with 900-1200 rev/min, stir 8 minutes under normal temperature, after add in twin screw extruder, this forcing machine length-to-diameter ratio is 40:1, screw diameter 65 mm, parallel double-screw extruder rotating speed 100-400 rev/min, the temperature of twin screw extruder from transportation section to discharge port is 110-120 DEG C, through extruding pelletizing growth 2 ~ 3mm, diameter 1.5 ~ 2mm small-particle,
(2) LDPE/graphite expansion is peeled off: by LDPE/graphite master batch described in 100g step (1), 1g kaolin and 200g water join in 5 liters of autoclaves, start agitator, rotating speed 600 revs/min, carbonic acid gas is passed into again after beginning to warm to 110 DEG C with per minute 3 DEG C, still internal pressure is made to reach 50MPa, high-pressure autoclave discharging mouth one end is opened in pressurize after 60 minutes, LDPE/graphite master batch and water are released at one atm, graphite can be obtained be stripped, LDPE is by the LDPE/Graphene expanded particle after the foaming of foaming, in addition, continue to maintain agitator speed 600 revs/min while LDPE/Graphene expanded particle released by autoclave, and continue to pass into carbonic acid gas in autoclave, all the time maintaining still internal pressure is 20MPa, until still endosome is emptying,
(3) LDPE/Graphene expanded particle after explosion step (2) obtained is again through twin-screw extrusion exhaust granulation, conduction LDPE/Graphene expanded particle, this particle volume resistivity is 0.051 Ω cm, and this raw material conductive agglomerate can add in other various plastics and make its goods of conductive articles by arbitrary proportion.
Claims (10)
1. a resin/graphite alkene conductive plastic base particle, is characterized in that, described conductive plastic base particle is made up of each component of following weight part:
Resin 10-30 part
Graphite 70-80 part
Coupling agent 0.7-3 part
Tensio-active agent 0.1-2 part
Paraffin 0.2-0.8 part
Oxidation inhibitor 0.1-0.4 part
Wherein, described resin is any one in ethylene-vinyl acetate copolymer (EVA) or Low Density Polyethylene (LDPE), and described paraffin is SEMI-REFINED PARAFFIN WAX.
2. a kind of resin/graphite alkene conductive plastic base particle according to claim 1, is characterized in that, described graphite is any one in crystalline flake graphite, aphanitic graphite, compact crystal shape graphite, expanded graphite.
3. a kind of resin/graphite alkene conductive plastic base particle according to claim 2, it is characterized in that, described graphite is crystalline flake graphite.
4. a kind of resin/graphite alkene conductive plastic base particle according to claim 1, is characterized in that, described coupling agent is γ-(methacryloxypropyl) propyl trimethoxy silicane.
5. a kind of resin/graphite alkene conductive plastic base particle according to claim 1, it is characterized in that, described tensio-active agent refers to any one in sodium laurylsulfonate, sodium lauryl sulphate, tween 80.
6. a kind of resin/graphite alkene conductive plastic base particle according to claim 1, it is characterized in that, described oxidation inhibitor refers to one or more in antioxidant 1010, irgasfos 168, antioxidant 330.
7. prepare a preparation method for a kind of resin/graphite alkene conductive plastic base particle described in any one of claim 1-6, comprise the steps:
(1) preparation of resin/graphite conducting master batch: described resin, graphite, tensio-active agent, coupling agent, paraffin and oxidation inhibitor are pressed described weight part through twin screw extruder extruding pelletization, obtain the resin/graphite Plastic conductive master batch of long 2 ~ 3mm, diameter 1.5 ~ 3mm;
(2) resin/graphite expands and peels off: by water, resin/graphite Plastic conductive master batch, physical isolation agent, pneumatogen one low pressure after heating that to coexist in autoclave is released, make Plastic conductive master batch generation explosion, graphite expansion is peeled off, specifically by described for step (1) obtained resin/graphite small-particle, physical isolation agent, water is weight part in 100:1:200(respectively) ratio be placed in autoclave, turn on agitator, and control reactor temperature under plastics fusing point in 20 ~ 40 DEG C, inject 3 ~ 50MPa pneumatogen, under plastic master batch in still and water being released to 1 normal atmosphere fast after constant temperature pressurize 30 ~ 90min, and keep constant pressure in autoclave, until in still poly-plastic master batch and water emptying, through sieving, the resin/graphite alkene expanded particle after explosion can be obtained,
(3) by the resin/graphite alkene expanded particle after the explosion obtained by step (2) again through twin-screw extrusion exhaust granulation, resin/graphite alkene conductive agglomerate.
8. the blasting stripping preparation method of resin/graphite alkene conductive plastic base particle according to claim 7, is characterized in that, described physical isolation agent refers to calcium carbonate, kaolin, talcum powder.
9. the blasting stripping preparation method of resin/graphite alkene conductive plastic base particle according to claim 7, is characterized in that, described pneumatogen is any one in nitrogen, carbonic acid gas, butane or pentane.
10. a conductive articles, is characterized in that, to be that the resin/graphite alkene conductive plastics prepared with method described in claim 7 is female be prepared from for raw material described conductive articles.
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| CN116144092B (en) * | 2023-02-14 | 2023-11-21 | 温州锌时代能源有限公司 | High-dimensional network structure bipolar plate for zinc-bromine flow battery and preparation method thereof |
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