CN105001529A - Foaming conductive thermoplastic dynamic vulcanized rubber composite and preparation method thereof - Google Patents
Foaming conductive thermoplastic dynamic vulcanized rubber composite and preparation method thereof Download PDFInfo
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- CN105001529A CN105001529A CN201510529436.4A CN201510529436A CN105001529A CN 105001529 A CN105001529 A CN 105001529A CN 201510529436 A CN201510529436 A CN 201510529436A CN 105001529 A CN105001529 A CN 105001529A
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- dynamic perduren
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- 229920001169 thermoplastic Polymers 0.000 title abstract description 59
- 239000004416 thermosoftening plastic Substances 0.000 title abstract description 59
- 238000005187 foaming Methods 0.000 title abstract description 57
- 238000002360 preparation method Methods 0.000 title abstract description 14
- 239000004636 vulcanized rubber Substances 0.000 title abstract 4
- 239000002131 composite material Substances 0.000 title abstract 3
- 239000004594 Masterbatch (MB) Substances 0.000 abstract description 29
- 229910021389 graphene Inorganic materials 0.000 abstract description 29
- 239000000314 lubricant Substances 0.000 abstract description 25
- 239000000463 material Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002861 polymer material Substances 0.000 abstract description 3
- 230000003078 antioxidant effect Effects 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 abstract description 2
- 239000003963 antioxidant agent Substances 0.000 abstract 1
- 239000002270 dispersing agent Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 36
- 239000003112 inhibitor Substances 0.000 description 23
- 239000011159 matrix material Substances 0.000 description 22
- 230000003647 oxidation Effects 0.000 description 22
- 238000007254 oxidation reaction Methods 0.000 description 22
- 239000002245 particle Substances 0.000 description 22
- 239000006185 dispersion Substances 0.000 description 21
- 239000000203 mixture Substances 0.000 description 21
- 229920003048 styrene butadiene rubber Polymers 0.000 description 18
- 229920006342 thermoplastic vulcanizate Polymers 0.000 description 18
- -1 polyethylene Polymers 0.000 description 16
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 12
- 239000002994 raw material Substances 0.000 description 12
- 239000004698 Polyethylene Substances 0.000 description 11
- 239000002174 Styrene-butadiene Substances 0.000 description 11
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 10
- 238000005469 granulation Methods 0.000 description 10
- 230000003179 granulation Effects 0.000 description 10
- 239000004615 ingredient Substances 0.000 description 10
- 239000012764 mineral filler Substances 0.000 description 10
- 238000002156 mixing Methods 0.000 description 10
- 239000006260 foam Substances 0.000 description 7
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 description 7
- 235000021355 Stearic acid Nutrition 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 6
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 6
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 6
- 235000019260 propionic acid Nutrition 0.000 description 6
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 6
- 239000008117 stearic acid Substances 0.000 description 6
- 229920002943 EPDM rubber Polymers 0.000 description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 description 5
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical group CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 4
- 239000011115 styrene butadiene Substances 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- GLDOVTGHNKAZLK-UHFFFAOYSA-N n-octadecyl alcohol Natural products CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 3
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006261 foam material Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002742 polystyrene-block-poly(ethylene/propylene) -block-polystyrene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229920003031 santoprene Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- 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
- C08L23/16—Ethene-propene or ethene-propene-diene copolymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
-
- 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
- C08J9/06—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 chemical blowing agent
- C08J9/10—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 chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
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- 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
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
- C08J2201/024—Preparation or use of a blowing agent concentrate, i.e. masterbatch in a foamable composition
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
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- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- 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
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Abstract
The invention belongs to the technical field of high polymer materials, and particularly relates to a foaming conductive thermoplastic dynamic vulcanized rubber composite and a preparation method thereof. Thermoplastic dynamic vulcanized rubber, a compatilizer, nano graphene, foaming masterbatch, an antioxidant, a dispersant and a lubricant are selected and combined. The materials are matched with each other, so that the foaming conductive thermoplastic dynamic vulcanized rubber composite is light in specific gravity, smooth in surface, environment-friendly, easy for secondary operation and permanently conductive, and has the surface resistance and volume resistance of 10<3-9>; the preparation method is simple in process, easy for condition control, low in cost, low in equipment requirement and suitable for industrialized production.
Description
Technical field
The invention belongs to technical field of polymer materials, particularly one foaming conductive thermoplastic dynamic perduren matrix material and preparation method thereof.
Background technology
Foaming macromolecular polymer materials is widely used in the life of people, investigation shows that the output of polymeric foamable material accounts for 10% of plastic prod, polymer foaming have quality light, save starting material, heat insulation, sound absorption, energy-absorbing and deflect the advantages such as performance is good, be widely used in packaging, medical treatment, build, the field such as automobile and furniture.
Thermoplastic dynamic perduren (TPV) is the class novel thermoplastic elastomer material grown up nearly coming year more than 20, and it possesses excellent elastomer performance.At present; in the thermoplastic elastomeric foaming material of the marketization is urethane and TPR foam material mostly, and TPV foam material is less, and major cause has the following aspects: first; TPV is a kind of novel material developing relatively evening, and commercially the history of successful Application is shorter; Secondly, TPV self has special Micro-Structure, containing cross-linked rubber disperse phase and thermoplastic resin external phase, the factors such as the melt strength of the relative content of two-phase, the size of rubber phase, resin-phase all have important impact to the foam performance of TPV.Therefore, compared with studying with the foaming of common thermoplastic's resin, the influence factor of TPV foam process is more complicated.Foaming TPV material main is on the market monopolized by offshore company substantially at present.
Foaming TPV material traditional is at present used for extruding and injection moulding is nonconducting, and foaming ratio is uneven, although its conductivity can be promoted by adding static inhibitor, but its product has surface and volume resistance is large, the serious problems such as conduction is unstable, therefore develop one and have even foaming efficiency, can repeat processing, surperficial and that volume resistance is little and stable foaming conduction TPV material is just very necessary.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, provide a kind of foaming stable, the expandability that electrical efficiency is high, conductive thermoplastic dynamic perduren matrix material.
Another object of the present invention is to provide that a kind of technique is simple, and working condition easily controls, the low and expandability of excellent performance of cost, the preparation method of conductive thermoplastic dynamic perduren matrix material.
The object of the present invention is achieved like this: a kind of foaming conductive thermoplastic dynamic perduren matrix material, is made up of the raw material of following weight percent:
Thermoplastic dynamic perduren 60 ~ 85%
Compatilizer 1 ~ 5%
Nano-graphene 5 ~ 15%
Foaming master batch 2 ~ 17%
Oxidation inhibitor 0.1 ~ 0.5%
Dispersion agent 0.05 ~ 1.5%
Lubricant 0.05% ~ 1.5%.
Preferably, described thermoplastic dynamic perduren is the TPV that EPDM/PP is cross-linked, and can select the TPV of shore hardness 60A.Certain difference according to Application Areas, can select the TPV of other model, can select Santoprene 8211-60 in a particular embodiment, and one or more in E1160 of Dawnprene21-64, TPV 6355, Hrseprene carry out compound.
Preferably, described compatilizer is Hydrogenated thermoplastic's styrene-butadiene rubber(SBR)-maleic anhydride grafts, Hydrogenated thermoplastic's styrene-butadiene rubber(SBR)-polyurethane grafting substrate, thermoplastic styrene butadiene rubber-maleic anhydride connect at least one in grafts, Hydrogenated thermoplastic's styrene-butadiene rubber(SBR)-thermoplastic polyurethane copolymer, thermoplastic styrene butadiene rubber-methyl methacrylate-grafted thing.Certainly, compatilizer can also adopt other compatilizers of this area.Above-mentioned compatilizer can melt extrude in process, can be effective by means of intermolecular linkage force, make TPV, the nano-graphene in filling a prescription, better have an effect between the component molecular such as foaming master batch, give this foaming, the stability of conductive thermoplastic dynamic perduren matrix material excellence.Certainly, compatilizer can also adopt other compatilizers of this area.
Preferably, the particle diameter of described nano-graphene is less than 300 nanometers.Above-mentioned nano-graphene preferred single layer Graphene, also can select the nano-graphene that the number of plies is few.Nano-graphene has superpower conductivity, can give matrix material excellence and stable conduction antistatic effect.Graphene has unusual conductivity, adds nano-graphene, significantly can reduce the addition of conductive filler material, promotes conductivity.
Preferably, described foaming master batch is made up of the raw material of following weight percent:
SEBS particle 50-60%
Whipping agent 15-25%
PE wax 1-5%
Stearic acid 5-10%
Mineral filler 5-10%
At 90 DEG C, adopt mixing obtained foaming master batch in two rod mill.
Above-mentioned foaming master batch is self-control, wherein SEBS particle can select YH506, SEBS or the SEPS compacted particles of other model can certainly be selected, whipping agent is the agent of elastomerics special-purpose foaming, AC(Cellmic C 121 can be selected) class or other pore foaming agent, PE wax is common commercially available, also can select E wax, mineral filler generally selects calcium carbonate, also can select other.
Preferably, described lubricant is oxidic polyethylene, and described dispersion agent is N, N '-ethylene bis stearamide.Lubricant can melt extrude in process and is attached on other component surface, and each component is fully disperseed, and improves stability and the homogeneity of the invention described above color, be convenient to the conveying in each component melts extrusion simultaneously, certainly, lubricant can also select other lubricants, as stearic acid etc.
Preferably, described oxidation inhibitor is β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl alcohol ester, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] at least one in pentaerythritol ester and antioxidant 1010 and three (2,4-di-tert-butyl-phenyl) phosphorous acid ester.Oxidation inhibitor can effectively improve antioxidant property of the present invention, extends its work-ing life.
Foam the preparation method of conductive thermoplastic dynamic perduren matrix material, comprises the following steps:
S01. recipe ingredient is taken: take the thermoplastic dynamic perduren of formula ratio, compatilizer, nano-graphene, foaming master batch, oxidation inhibitor, dispersion agent, lubricant respectively;
S02. mixture is prepared: carry out mixing treatment by after the thermoplastic dynamic perduren, compatilizer, oxidation inhibitor, dispersion agent and the mix lubricant that take in step S01;
S03. twin screw melt extrudes: by the mixture in step S02 from major ingredient mouth feeding twin screw extruder, and the nano-graphene taken in step S01 is fed twin screw extruder from side material mouth, through melt extruding granulation, by dry, for subsequent use for the particle obtained;
S04. singe screw melt extrudes: be mixed in proportion particle dry in step S03 and foaming master batch through Single screw extrusion granulation, obtains a kind of foaming conductive thermoplastic dynamic perduren matrix material.
It is 170-210 DEG C that described twin screw melt extrudes temperature, die head temperature 180-195 DEG C; It is 175-195 DEG C that described singe screw melt extrudes temperature, die head temperature 165-175 DEG C.Each component only need mix by formula and adopt the mode of side feeding by each component melts extruding pelletization by the preparation method of above-mentioned foaming conductive thermoplastic dynamic perduren matrix material, its preparation method technique is simple, condition is easily controlled, with low cost, feature low for equipment requirements, is suitable for suitability for industrialized production.
Beneficial effect of the present invention is: the present invention selects thermoplastic dynamic perduren, compatilizer, nano-graphene, foaming master batch, oxidation inhibitor, dispersion agent, lubricant to combine, cooperatively interact between raw material, make light specific gravity of the present invention, smooth surface, environmental protection, be easy to secondary processing, forever conduct electricity, surface resistivity and volume resistance are 10
3-9, and preparation method's technique of the present invention is simple, and condition is easily controlled, with low cost, low for equipment requirements, is suitable for suitability for industrialized production.
Embodiment
Below by embodiment, the invention will be further described, but practical range of the present invention is not limited to this.
embodiment 1
A kind of foaming conductive thermoplastic dynamic perduren matrix material, is made up of the raw material of following weight percent:
Thermoplastic dynamic perduren 84%
Compatilizer 5%
Nano-graphene 5%
Foaming master batch 4%
Oxidation inhibitor 0.5%
Dispersion agent 0. 5%
Lubricant 1%.
Described thermoplastic dynamic perduren is the TPV that EPDM/PP is cross-linked.
Described compatilizer is that thermoplastic styrene butadiene rubber-maleic anhydride connects grafts.
The particle diameter of described nano-graphene is less than 300 nanometers.
Described foaming master batch is made up of the raw material of following weight percent:
SEBS particle 60%
Whipping agent 15%
PE wax 5%
Stearic acid 10%
Mineral filler 10%
At 90 DEG C, adopt mixing obtained foaming master batch in two rod mill.
Described whipping agent is AC whipping agent, and described mineral filler is calcium carbonate.
Described lubricant is oxidic polyethylene, and described dispersion agent is N, N '-ethylene bis stearamide, described oxidation inhibitor is β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl alcohol ester.
Foam the preparation method of conductive thermoplastic dynamic perduren matrix material, comprises the following steps:
S01. recipe ingredient is taken: take the thermoplastic dynamic perduren of formula ratio, compatilizer, nano-graphene, foaming master batch, oxidation inhibitor, dispersion agent, lubricant respectively;
S02. mixture is prepared: carry out mixing treatment by after the thermoplastic dynamic perduren, compatilizer, oxidation inhibitor, dispersion agent and the mix lubricant that take in step S01;
S03. twin screw melt extrudes: by the mixture in step S02 from major ingredient mouth feeding twin screw extruder, and the nano-graphene taken in step S01 is fed twin screw extruder from side material mouth, through melt extruding granulation, by dry, for subsequent use for the particle obtained;
S04. singe screw melt extrudes: be mixed in proportion particle dry in step S03 and foaming master batch through Single screw extrusion granulation, obtains a kind of foaming conductive thermoplastic dynamic perduren matrix material.
It is 170 DEG C that described twin screw melt extrudes temperature, die head temperature 180 DEG C; It is 175 DEG C that described singe screw melt extrudes temperature, die head temperature 165 DEG C.
embodiment 2
A kind of foaming conductive thermoplastic dynamic perduren matrix material, is made up of the raw material of following weight percent:
Thermoplastic dynamic perduren 75%
Compatilizer 5%
Nano-graphene 10%
Foaming master batch 8%
Oxidation inhibitor 0.5%
Dispersion agent 0.5%
Lubricant 1%.
Described thermoplastic dynamic perduren is the TPV that EPDM/PP is cross-linked.
Described compatilizer is Hydrogenated thermoplastic's styrene-butadiene rubber(SBR)-maleic anhydride grafts.
The particle diameter of described nano-graphene is less than 300 nanometers.
Described foaming master batch is made up of the raw material of following weight percent:
SEBS particle 55%
Whipping agent 20%
PE wax 5%
Stearic acid 10%
Mineral filler 10%
At 90 DEG C, adopt mixing obtained foaming master batch in two rod mill.
Described whipping agent is AC whipping agent, and described mineral filler is calcium carbonate.
Described lubricant is oxidic polyethylene, and described dispersion agent is N, N '-ethylene bis stearamide, described oxidation inhibitor is three (2,4-di-tert-butyl-phenyl) phosphorous acid ester.
Foam the preparation method of conductive thermoplastic dynamic perduren matrix material, comprises the following steps:
S01. recipe ingredient is taken: take the thermoplastic dynamic perduren of formula ratio, compatilizer, nano-graphene, foaming master batch, oxidation inhibitor, dispersion agent, lubricant respectively;
S02. mixture is prepared: carry out mixing treatment by after the thermoplastic dynamic perduren, compatilizer, oxidation inhibitor, dispersion agent and the mix lubricant that take in step S01;
S03. twin screw melt extrudes: by the mixture in step S02 from major ingredient mouth feeding twin screw extruder, and the nano-graphene taken in step S01 is fed twin screw extruder from side material mouth, through melt extruding granulation, by dry, for subsequent use for the particle obtained;
S04. singe screw melt extrudes: be mixed in proportion particle dry in step S03 and foaming master batch through Single screw extrusion granulation, obtains a kind of foaming conductive thermoplastic dynamic perduren matrix material.
It is 190 DEG C that described twin screw melt extrudes temperature, die head temperature 185 DEG C; It is 180 DEG C that described singe screw melt extrudes temperature, die head temperature 170 DEG C.
embodiment 3
A kind of foaming conductive thermoplastic dynamic perduren matrix material, is made up of the raw material of following weight percent:
Thermoplastic dynamic perduren 70%
Compatilizer 5%
Nano-graphene 15%
Foaming master batch 8%
Oxidation inhibitor 0.5%
Dispersion agent 0.5%
Lubricant 1%.
Described thermoplastic dynamic perduren is the TPV that EPDM/PP is cross-linked.
The mixture that described compatilizer is Hydrogenated thermoplastic's styrene-butadiene rubber(SBR)-maleic anhydride grafts, Hydrogenated thermoplastic's styrene-butadiene rubber(SBR)-polyurethane grafting substrate and Hydrogenated thermoplastic's styrene-butadiene rubber(SBR)-thermoplastic polyurethane copolymer mix with 1:1:1 ratio.
The particle diameter of described nano-graphene is less than 300 nanometers.
Described foaming master batch is made up of the raw material of following weight percent:
SEBS particle 55%
Whipping agent 25%
PE wax 5%
Stearic acid 5%
Mineral filler 10%
At 90 DEG C, adopt mixing obtained foaming master batch in two rod mill.
Described whipping agent is AC whipping agent, and described mineral filler is calcium carbonate.
Described lubricant is oxidic polyethylene, described dispersion agent is N, N '-ethylene bis stearamide, described oxidation inhibitor is β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl alcohol ester and four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] mixture of pentaerythritol ester four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 1:1 ratio.
Foam the preparation method of conductive thermoplastic dynamic perduren matrix material, comprises the following steps:
S01. recipe ingredient is taken: take the thermoplastic dynamic perduren of formula ratio, compatilizer, nano-graphene, foaming master batch, oxidation inhibitor, dispersion agent, lubricant respectively;
S02. mixture is prepared: carry out mixing treatment by after the thermoplastic dynamic perduren, compatilizer, oxidation inhibitor, dispersion agent and the mix lubricant that take in step S01;
S03. twin screw melt extrudes: by the mixture in step S02 from major ingredient mouth feeding twin screw extruder, and the nano-graphene taken in step S01 is fed twin screw extruder from side material mouth, through melt extruding granulation, by dry, for subsequent use for the particle obtained;
S04. singe screw melt extrudes: be mixed in proportion particle dry in step S03 and foaming master batch through Single screw extrusion granulation, obtains a kind of foaming conductive thermoplastic dynamic perduren matrix material.
It is 210 DEG C that described twin screw melt extrudes temperature, die head temperature 195 DEG C; It is 195 DEG C that described singe screw melt extrudes temperature, die head temperature 175 DEG C.
embodiment 4
A kind of foaming conductive thermoplastic dynamic perduren matrix material, is made up of the raw material of following weight percent:
Thermoplastic dynamic perduren 61%
Compatilizer 5%
Nano-graphene 15%
Foaming master batch 17%
Oxidation inhibitor 0.5%
Dispersion agent 0.5%
Lubricant 1%.
Described thermoplastic dynamic perduren is the TPV that EPDM/PP is cross-linked.
Described compatilizer is thermoplastic styrene butadiene rubber-methyl methacrylate-grafted thing.
The particle diameter of described nano-graphene is less than 300 nanometers.
Described foaming master batch is made up of the raw material of following weight percent:
SEBS particle 60%
Whipping agent 15%
PE wax 5%
Stearic acid 10%
Mineral filler 10%
At 90 DEG C, adopt mixing obtained foaming master batch in two rod mill.
Described whipping agent is AC whipping agent, and described mineral filler is calcium carbonate.
Described lubricant is oxidic polyethylene, described dispersion agent is N, N '-ethylene bis stearamide, described oxidation inhibitor is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.
Foam the preparation method of conductive thermoplastic dynamic perduren matrix material, comprises the following steps:
S01. recipe ingredient is taken: take the thermoplastic dynamic perduren of formula ratio, compatilizer, nano-graphene, foaming master batch, oxidation inhibitor, dispersion agent, lubricant respectively;
S02. mixture is prepared: carry out mixing treatment by after the thermoplastic dynamic perduren, compatilizer, oxidation inhibitor, dispersion agent and the mix lubricant that take in step S01;
S03. twin screw melt extrudes: by the mixture in step S02 from major ingredient mouth feeding twin screw extruder, and the nano-graphene taken in step S01 is fed twin screw extruder from side material mouth, through melt extruding granulation, by dry, for subsequent use for the particle obtained;
S04. singe screw melt extrudes: be mixed in proportion particle dry in step S03 and foaming master batch through Single screw extrusion granulation, obtains a kind of foaming conductive thermoplastic dynamic perduren matrix material.
It is 200 DEG C that described twin screw melt extrudes temperature, die head temperature 185 DEG C; It is 180 DEG C that described singe screw melt extrudes temperature, die head temperature 170 DEG C.
comparative example 5
This comparative example is raw materials used refers to table 1 with consumption, and other place is with embodiment 1.
comparative example 6
This comparative example composition used and consumption refer to table 1, and other place is with embodiment 2.
Table 1 is embodiment and comparative example composition used and consumption summary sheet.
Table 2 is the experimental data table of embodiment and comparative example.
。
。
Can be found out by table 2, the good mechanical performance of embodiment of the present invention 1-4, surface resistivity is little.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (10)
1. foam a conductive thermoplastic dynamic perduren matrix material, it is characterized in that: be made up of the raw material of following weight percent:
Thermoplastic dynamic perduren 60 ~ 85%
Compatilizer 1 ~ 5%
Nano-graphene 5 ~ 15%
Foaming master batch 2 ~ 17%
Oxidation inhibitor 0.1 ~ 0.5%
Dispersion agent 0.05 ~ 1.5%
Lubricant 0.05% ~ 1.5%.
2. foaming conductive thermoplastic dynamic perduren matrix material according to claim 1, is characterized in that: described thermoplastic dynamic perduren is the TPV that EPDM/PP is cross-linked.
3. foaming conductive thermoplastic dynamic perduren matrix material according to claim 1, is characterized in that: described compatilizer is Hydrogenated thermoplastic's styrene-butadiene rubber(SBR)-maleic anhydride grafts, Hydrogenated thermoplastic's styrene-butadiene rubber(SBR)-polyurethane grafting substrate, thermoplastic styrene butadiene rubber-maleic anhydride connect at least one in grafts, Hydrogenated thermoplastic's styrene-butadiene rubber(SBR)-thermoplastic polyurethane copolymer, thermoplastic styrene butadiene rubber-methyl methacrylate-grafted thing.
4. foaming conductive thermoplastic dynamic perduren matrix material according to claim 1, is characterized in that: the particle diameter of described nano-graphene is less than 300 nanometers.
5. foaming conductive thermoplastic dynamic perduren matrix material according to claim 1, is characterized in that: described foaming master batch is made up of the raw material of following weight percent:
SEBS particle 50-60%
Whipping agent 15-25%
PE wax 1-5%
Stearic acid 5-10%
Mineral filler 5-10%
At 90 DEG C, adopt mixing obtained foaming master batch in two rod mill.
6. foaming conductive thermoplastic dynamic perduren matrix material according to claim 5, it is characterized in that: described whipping agent is AC whipping agent, described mineral filler is calcium carbonate.
7. foaming conductive thermoplastic dynamic perduren matrix material according to claim 1, it is characterized in that: described lubricant is oxidic polyethylene, described dispersion agent is N, N '-ethylene bis stearamide.
8. foaming conductive thermoplastic dynamic perduren matrix material according to claim 1, it is characterized in that: described oxidation inhibitor is β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl alcohol ester, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] at least one in pentaerythritol ester and three (2,4-di-tert-butyl-phenyl) phosphorous acid ester.
9. foam the preparation method of conductive thermoplastic dynamic perduren matrix material, it is characterized in that: comprise the following steps:
S01. recipe ingredient is taken: take the thermoplastic dynamic perduren of formula ratio, compatilizer, nano-graphene, foaming master batch, oxidation inhibitor, dispersion agent, lubricant respectively;
S02. mixture is prepared: carry out mixing treatment by after the thermoplastic dynamic perduren, compatilizer, oxidation inhibitor, dispersion agent and the mix lubricant that take in step S01;
S03. twin screw melt extrudes: by the mixture in step S02 from major ingredient mouth feeding twin screw extruder, and the nano-graphene taken in step S01 is fed twin screw extruder from side material mouth, through melt extruding granulation, by dry, for subsequent use for the particle obtained;
S04. singe screw melt extrudes: be mixed in proportion particle dry in step S03 and foaming master batch through Single screw extrusion granulation, obtains a kind of foaming conductive thermoplastic dynamic perduren matrix material.
10. the preparation method of a kind of conductive thermoplastic dynamic perduren matrix material that foams according to claim 9: it is 170-210 DEG C that described twin screw melt extrudes temperature, die head temperature 180-195 DEG C; It is 175-195 DEG C that described singe screw melt extrudes temperature, die head temperature 165-175 DEG C.
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