CN116120672A - Ultrahigh-fluidity thermoplastic elastomer for automobile parts and preparation method thereof - Google Patents
Ultrahigh-fluidity thermoplastic elastomer for automobile parts and preparation method thereof Download PDFInfo
- Publication number
- CN116120672A CN116120672A CN202211705349.6A CN202211705349A CN116120672A CN 116120672 A CN116120672 A CN 116120672A CN 202211705349 A CN202211705349 A CN 202211705349A CN 116120672 A CN116120672 A CN 116120672A
- Authority
- CN
- China
- Prior art keywords
- parts
- thermoplastic elastomer
- extruder
- ultra
- plasticizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920002725 thermoplastic elastomer Polymers 0.000 title claims abstract description 81
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 43
- 239000004014 plasticizer Substances 0.000 claims abstract description 36
- 229920005672 polyolefin resin Polymers 0.000 claims abstract description 30
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 24
- 239000000945 filler Substances 0.000 claims abstract description 24
- 230000003678 scratch resistant effect Effects 0.000 claims abstract description 24
- 239000000314 lubricant Substances 0.000 claims abstract description 23
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 20
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 16
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 16
- 239000004611 light stabiliser Substances 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims description 45
- -1 polypropylene Polymers 0.000 claims description 42
- 238000002844 melting Methods 0.000 claims description 32
- 230000008018 melting Effects 0.000 claims description 32
- 239000004743 Polypropylene Substances 0.000 claims description 23
- 229920001155 polypropylene Polymers 0.000 claims description 23
- 238000012545 processing Methods 0.000 claims description 23
- 239000007787 solid Substances 0.000 claims description 18
- 239000000155 melt Substances 0.000 claims description 17
- 238000001125 extrusion Methods 0.000 claims description 16
- 229920001296 polysiloxane Polymers 0.000 claims description 16
- 238000005469 granulation Methods 0.000 claims description 14
- 230000003179 granulation Effects 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 239000006229 carbon black Substances 0.000 claims description 10
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 10
- 229920006132 styrene block copolymer Polymers 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 9
- 238000004132 cross linking Methods 0.000 claims description 9
- 229920000573 polyethylene Polymers 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 7
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 6
- 229920002545 silicone oil Polymers 0.000 claims description 6
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 6
- KDGNCLDCOVTOCS-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy propan-2-yl carbonate Chemical compound CC(C)OC(=O)OOC(C)(C)C KDGNCLDCOVTOCS-UHFFFAOYSA-N 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 claims description 5
- BJELTSYBAHKXRW-UHFFFAOYSA-N 2,4,6-triallyloxy-1,3,5-triazine Chemical compound C=CCOC1=NC(OCC=C)=NC(OCC=C)=N1 BJELTSYBAHKXRW-UHFFFAOYSA-N 0.000 claims description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 229920001568 phenolic resin Polymers 0.000 claims description 4
- 239000005011 phenolic resin Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 claims description 3
- UAUDZVJPLUQNMU-UHFFFAOYSA-N Erucasaeureamid Natural products CCCCCCCCC=CCCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-UHFFFAOYSA-N 0.000 claims description 3
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 claims description 3
- 235000019359 magnesium stearate Nutrition 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 claims description 3
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 claims description 3
- 239000010690 paraffinic oil Substances 0.000 claims description 3
- 229920003192 poly(bis maleimide) Polymers 0.000 claims description 3
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims description 3
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 2
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 claims description 2
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 2
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- TVJPBVNWVPUZBM-UHFFFAOYSA-N [diacetyloxy(methyl)silyl] acetate Chemical class CC(=O)O[Si](C)(OC(C)=O)OC(C)=O TVJPBVNWVPUZBM-UHFFFAOYSA-N 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 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 2
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 2
- 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 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 230000009965 odorless effect Effects 0.000 claims description 2
- 239000001038 titanium pigment Substances 0.000 claims description 2
- 239000010456 wollastonite Substances 0.000 claims description 2
- 229910052882 wollastonite Inorganic materials 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 15
- 229920001971 elastomer Polymers 0.000 abstract description 7
- 230000032683 aging Effects 0.000 abstract description 2
- 239000000806 elastomer Substances 0.000 abstract description 2
- 238000005253 cladding Methods 0.000 abstract 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 12
- 239000003921 oil Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000002994 raw material Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 239000005060 rubber Substances 0.000 description 5
- IPJGAEWUPXWFPL-UHFFFAOYSA-N 1-[3-(2,5-dioxopyrrol-1-yl)phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C1=CC=CC(N2C(C=CC2=O)=O)=C1 IPJGAEWUPXWFPL-UHFFFAOYSA-N 0.000 description 4
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000005662 Paraffin oil Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000003878 thermal aging Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 1
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004712 Metallocene polyethylene (PE-MC) Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- AMTWCFIAVKBGOD-UHFFFAOYSA-N dioxosilane;methoxy-dimethyl-trimethylsilyloxysilane Chemical compound O=[Si]=O.CO[Si](C)(C)O[Si](C)(C)C AMTWCFIAVKBGOD-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000012761 high-performance material Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229920004889 linear high-density polyethylene Polymers 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000013386 optimize process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006124 polyolefin elastomer Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- XOFYZVNMUHMLCC-ZPOLXVRWSA-N prednisone Chemical compound O=C1C=C[C@]2(C)[C@H]3C(=O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 XOFYZVNMUHMLCC-ZPOLXVRWSA-N 0.000 description 1
- 229940083037 simethicone Drugs 0.000 description 1
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000004073 vulcanization 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
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
- C08L2207/04—Thermoplastic elastomer
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an ultrahigh-fluidity thermoplastic elastomer for automobile parts and a preparation method thereof, wherein the ultrahigh-fluidity thermoplastic elastomer is prepared from the following components in parts by weight: 100 parts of ethylene propylene diene monomer, 80-200 parts of polyolefin resin, 80-200 parts of thermoplastic elastomer, 80-200 parts of plasticizer, 0-120 parts of filler, 5-20 parts of scratch resistant agent, 2-20 parts of cross-linking agent, 2-20 parts of auxiliary cross-linking agent, 1-20 parts of lubricant, 1-20 parts of antioxidant and 1-20 parts of light stabilizer. The ultra-high fluidity elastomer material prepared by the invention has good temperature resistance, ageing resistance and scratch resistance, and can be widely applied to the fields of automotive interior cladding materials, anti-slip mat materials and the like.
Description
Technical Field
The invention relates to the technical field of thermoplastic elastomer materials, in particular to an ultrahigh-fluidity thermoplastic elastomer for automobile parts and a preparation method thereof.
Background
Thermoplastic elastomers are a composite structure high-performance material with physical properties between those of plastics and rubbers, have easy processing properties, and simultaneously have the elasticity of rubbers and the reputation of third-generation rubbers. The material can have the functionality of vulcanized rubber at normal temperature and has the plasticity and the repeated processability of thermoplastic plastic at high temperature. Compared with the traditional thermosetting rubber, the thermoplastic elastomer has the advantages of simple molding and processing, energy saving of processing equipment, high cost performance, recyclable materials and gate materials, and the like, and has remarkable advantages in energy saving and environmental protection while meeting functions, appearance and touch feeling. With the wide application of thermoplastic elastomers in the fields of automobile industry, building material home, electronic appliances, medical and health, consumer goods, etc., rubber products other than pneumatic tires are being sought to be replaced with thermoplastic elastomers.
Meanwhile, the requirements of thermoplastic elastomers for the application range of thermoplastic elastomers are gradually increasing instead of the conventional automotive interior materials. Currently, thermoplastic elastomer materials have been used in a large number of applications in automotive interior products. However, most thermoplastic elastomer materials have poor flowability, and very small amounts of slightly higher flowability thermoplastic elastomers have poor mechanical properties or poor weatherability. In order to make thermoplastic elastomers useful in automotive upholstery where thin wall, large area, higher flowability, weatherability and strength are required, flowability is often limited and it is difficult to replace existing high carbon emission raw materials.
Accordingly, an ultra-high fluidity thermoplastic elastomer applied to automobile parts has been proposed to solve the above problems.
Disclosure of Invention
The invention aims to provide an ultrahigh-fluidity thermoplastic elastomer for automobile parts; the thermoplastic elastomer has ultrahigh fluidity and excellent weather resistance and strength, so as to solve the requirements of the central thermoplastic elastomer in the prior art on ultrahigh fluidity and weather resistance and high strength.
The invention also aims to provide a preparation method of the ultrahigh-fluidity thermoplastic elastomer applied to automobile parts, which has the advantages of stable process, low cost and easy control and continuous production.
The invention adopts the following technical scheme to solve the problems:
an ultrahigh-fluidity thermoplastic elastomer for automobile parts comprises the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 80-200 parts of polyolefin resin, 80-200 parts of thermoplastic elastomer, 80-200 parts of plasticizer, 0-120 parts of filler, 5-20 parts of scratch resistant agent, 2-20 parts of cross-linking agent, 2-20 parts of auxiliary cross-linking agent, 1-20 parts of lubricant, 1-20 parts of antioxidant and 1-20 parts of light stabilizer.
Preferably, the polyolefin resin provided by the invention is one or more of homo-polypropylene, co-polypropylene, metallocene polypropylene and polyethylene.
Further, the polyolefin resin is one or more of homo-polypropylene, co-polypropylene, metallocene polypropylene and polyethylene. When the polyolefin resin contains homopolypropylene, the content of the homopolypropylene is more than or equal to 10wt percent, and 230 ℃/2.16kg of melt index is 20-120g/10min; when the polyolefin resin contains the copolymerized polypropylene, the content of the copolymerized polypropylene is more than or equal to 15wt percent, and 230 ℃/2.16kg of melt index is 10-100g/10min; when the polyolefin resin contains metallocene polypropylene, the content of the metallocene polypropylene is more than or equal to 10wt percent, and 230 ℃/2.16kg of the melt index is 80-3000g/10min; when the polyolefin resin contains polyethylene, the content of the polyethylene is more than or equal to 10wt%, and 230 ℃/2.16kg of melt index is 2-100g/10min; further, the polymerized units of the polypropylene copolymer comprise one or more of ethylene, propylene, butene, hexene, octene; the polyethylene comprises at least one of low density polyethylene, linear low density polyethylene, high density polyethylene, and metallocene polyethylene.
Preferably, the thermoplastic elastomer provided by the invention is one or a plurality of blends of styrene-butadiene-styrene block copolymer, styrene-ethylene-butylene-styrene block copolymer and styrene-ethylene-propylene-styrene block copolymer.
Preferably, the plasticizer provided by the invention has a flash point of more than 200 ℃ and a kinematic viscosity of more than 100mm at 40 DEG C 2 One or more blends of paraffinic, naphthenic, aromatic, linear paraffinic oils.
Preferably, the filler provided by the invention is at least one of calcium carbonate, talcum powder, kaolin, mica, wollastonite, barium sulfate, carbon black, white carbon black and titanium pigment. Further, the particle size of the filler is 3000-6000 meshes.
Preferably, the scratch resistant agent provided by the invention is one or more of siloxane, polysiloxane, silicone master batch and dimethyl silicone oil.
Further, the viscosity of the simethicone is 10000-300000cSt.
Preferably, the lubricant provided by the invention is one or more of erucamide, oleamide, zinc stearate, magnesium stearate, silicone and polyethylene wax.
Preferably, the cross-linking agent provided by the invention is one or more of isopropyl tert-butyl peroxycarbonate, odorless dicumyl peroxide, phenolic resin and modified methyltriacetoxysilane.
Preferably, the auxiliary cross-linking agent provided by the invention is one or more of bismaleimide, trimethylolpropane trimethacrylate, trialkenyl methyl triisocyanurate, 3-triethoxysilyl-1-propylamine, triallyl isocyanurate, N' -m-phenylene bismaleimide and triallyl cyanurate.
Another object of the present invention is to provide a method for producing the above thermoplastic elastomer, comprising the steps of:
(1) Sequentially adding 20-40wt% of the thermoplastic elastomer and the plasticizer into a high-speed stirrer, stirring at the speed of 100-500r/min for 10-30 min, standing for 1-4 h, and then adding ethylene propylene diene monomer, polyolefin resin, filler, scratch-resistant agent, lubricant, antioxidant and light stabilizer into the high-speed stirrer together, and stirring at the speed of 100-300r/min for 5-10 min to obtain a premix A;
(2) Adding the premix A into an extruder, controlling the processing temperatures of a plasticizing melting zone and a melt conveying zone, continuously and quantitatively adding the premix A by a metering pump at the first section of the solid conveying zone of the extruder, adding 20-40wt% of plasticizer by the metering pump at the front section of the extruder, vacuumizing by a vacuum pump at the tail section of the extruder, and melting, extruding and granulating the premix by the extruder to obtain an intermediate B;
(3) Adding the intermediate B into an extruder, controlling the processing temperatures of a plasticizing melting zone and a melt conveying zone, respectively carrying out continuous quantitative addition of the intermediate B, a cross-linking agent, a crosslinking aid and the rest plasticizer by using a metering pump at the first section of the solid conveying zone of the extruder, carrying out vacuumizing treatment at the tail end of the extruder by using a vacuum pump, and carrying out melting, extrusion and granulation of the extruder to obtain the thermoplastic elastomer with ultrahigh fluidity.
Preferably, the extruders in the steps (2) and (3) are all co-rotating double-screw extruders, the feeding speed is 60-300r/min, the screw speed is 200-500r/min, and the length-diameter ratio of the screws is 52-64.
Preferably, in the steps (2) and (3), the temperature of the first section of the solid conveying area of the extruder is not more than 120 ℃, and the temperature of the other sections is 150-240 ℃.
The beneficial effects are that:
the ultra-high fluidity thermoplastic elastomer prepared by the invention takes ethylene propylene diene monomer as a main material, a high fluidity dynamic vulcanized ethylene propylene diene monomer/polypropylene resin mixture is obtained, ultra-high fluidity polypropylene resin is introduced, and the mixture system has excellent dispersibility and compatibility through reasonable proportioning and processing technology, and has the characteristics of ultra-high fluidity while having excellent weather resistance and wide application range.
The thermoplastic elastomer material prepared by processing the ethylene propylene diene monomer, the polyolefin resin, the thermoplastic elastomer, the plasticizer, the filler, the scratch resistant agent, the cross-linking agent, the auxiliary cross-linking agent, the lubricant, the antioxidant and the light stabilizer according to a certain proportion and technical conditions can adjust different hardness and touch feeling according to customer requirements, has good mechanical property, processability, high temperature resistance, low temperature resistance, environmental change and human body contact safety, and can be used for interior parts in contact with human bodies in automobile parts.
Meanwhile, the production of the ultra-high fluidity thermoplastic elastomer can be completed by a reasonable production process design and optimized production steps through a two-step extrusion method, and the production process is simple, stable and easy to control, environment-friendly and low in equipment requirement, and is beneficial to large-scale industrial production.
The plasticizer is added in batches, so that the heat resistance of the material can be effectively improved, the precipitation risk is reduced, the productivity can be improved, and the energy consumption is reduced. In addition, the production scheme of integrating the styrene thermoplastic elastomer and the thermoplastic dynamic vulcanized rubber can finish the production of a final finished product by a two-step extrusion method in the optimized process. In the product obtained by the method, the styrene elastomer and the ethylene propylene diene monomer can be well dispersed in the polyolefin continuous phase.
Detailed Description
The invention or the invention is further illustrated by means of specific examples.
The percentages (%) in the following examples are mass percentages.
Example 1
The ultra-high fluidity thermoplastic elastomer applied to the automobile parts comprises the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 100 parts of polyolefin resin, 80 parts of thermoplastic elastomer, 160 parts of plasticizer, 50 parts of filler, 10 parts of scratch resistant agent, 5 parts of cross-linking agent, 5 parts of auxiliary cross-linking agent, 10 parts of lubricant, 2 parts of antioxidant and 2 parts of light stabilizer.
In this embodiment: the polyolefin resin is a mixture of 30% of homopolypropylene, 40% of copolymerized polypropylene and 30% of metallocene polypropylene in a mass ratio;
the thermoplastic elastomer is a styrene-ethylene-propylene-styrene block copolymer with a styrene content of 40 wt%;
the plasticizer has a flash point of more than 200 ℃ and a kinematic viscosity of more than 100mm at 40 DEG C 2 40wt% paraffinic oil and 60wt% naphthenic oil per second;
the filler is 6000-mesh calcium carbonate;
the scratch resistant agent is a mixture of 30wt% polysiloxane and 70wt% silicone masterbatch;
the cross-linking agent is tert-butyl peroxyisopropyl carbonate, and the auxiliary cross-linking agent is 50wt% of bismaleimide and 50wt% of trimethylolpropane trimethacrylate;
the lubricant is a mixture of 30wt% erucamide and 70wt% zinc stearate.
The preparation method of the ultra-high fluidity thermoplastic elastomer specifically comprises the following steps:
(1) Sequentially adding a thermoplastic elastomer and 30wt% of plasticizer into a high-speed stirrer, stirring at the speed of 300r/min for 10 minutes, standing for 4 hours, and then adding ethylene propylene diene monomer, polyolefin resin, filler, scratch resistant agent, lubricant, antioxidant and light stabilizer into the high-speed stirrer together, and stirring at the speed of 300r/min for 10 minutes to obtain a premix A;
(2) Adding the premix A into an extruder, controlling the processing temperatures of a plasticizing melting zone and a melt conveying zone, continuously and quantitatively adding the premix A by a metering pump at the first section of the solid conveying zone of the extruder, adding 30wt% of plasticizer by the metering pump at the front section of the extruder, vacuumizing by a vacuum pump at the tail section of the extruder, and carrying out melting, extrusion and granulation on the premix by the extruder under the vacuum pressure lower than 0.1MPa to obtain an intermediate B;
(3) Adding the intermediate B into an extruder, controlling the processing temperatures of a plasticizing melting zone and a melt conveying zone, respectively carrying out continuous quantitative addition of the intermediate B, a cross-linking agent, a crosslinking aid and the rest plasticizer by using a metering pump at the first section of the solid conveying zone of the extruder, carrying out vacuumizing treatment by using a vacuum pump at the tail end of the extruder, and carrying out melting, extrusion and granulation by using the extruder under the vacuum pressure of less than 0.1MPa to obtain the ultra-high fluidity thermoplastic elastomer.
In the steps (2) and (3), the extruder is a homodromous double-screw extruder, the feeding rotating speed is 180r/min, the screw rotating speed is 400r/min, the length-diameter ratio of the screw is 64, and the processing temperature of the extruder is: the first stage temperature was 80℃and the remaining stages temperature was 210 ℃.
Example 2
The ultra-high fluidity thermoplastic elastomer applied to the automobile parts comprises the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 120 parts of polyolefin resin, 150 parts of thermoplastic elastomer, 150 parts of plasticizer, 100 parts of filler, 6 parts of scratch resistant agent, 2 parts of cross-linking agent, 2 parts of auxiliary cross-linking agent, 8 parts of lubricant, 3 parts of antioxidant and 6 parts of light stabilizer.
The polyolefin resin is selected from 60% of copolymerized polypropylene and 40% of metallocene polypropylene, the thermoplastic elastomer is a styrene-ethylene-butylene-styrene block copolymer with the styrene content of 30%, the plasticizer is a mixture of 40% of paraffin oil, 30% of naphthenic oil and 30% of aromatic hydrocarbon oil, the filler is a mixture of 30% of carbon black and 70% of white carbon black, the scratch-resistant agent is a mixture of 30% of silicone master batch and 70% of dimethyl silicone oil, the crosslinking agent is phenolic resin, the auxiliary crosslinking agent is 50% of N, N' -m-phenylene bismaleimide and 50% of trimethylolpropane trimethacrylate, and the lubricant is a mixture of 70% of zinc stearate and 30% of silicone.
The preparation method of the ultra-high fluidity thermoplastic elastomer specifically comprises the following steps:
(1) Sequentially adding a thermoplastic elastomer and 20% of plasticizer into a high-speed stirrer, stirring at a speed of 500r/min for 30 minutes, standing for 4 hours, and then adding ethylene propylene diene monomer, polyolefin resin, filler, scratch resistant agent, lubricant, antioxidant and light stabilizer into the high-speed stirrer together, and stirring at a speed of 500r/min for 5 minutes to obtain a premix A;
(2) Adding the premix A into an extruder, controlling the processing temperatures of a plasticizing melting zone and a melt conveying zone, continuously and quantitatively adding the premix A by a metering pump at the first section of the solid conveying zone of the extruder, adding 40% of plasticizer by the metering pump at the front section of the extruder, vacuumizing by a vacuum pump at the tail section of the extruder, and carrying out melting, extrusion and granulation on the premix by the extruder under the vacuum pressure lower than 0.1MPa to obtain an intermediate B;
(3) Adding the intermediate B into an extruder, controlling the processing temperatures of a plasticizing melting zone and a melt conveying zone, respectively carrying out continuous quantitative addition of the intermediate B, a cross-linking agent, a crosslinking aid and the rest plasticizer by using a metering pump at the first section of the solid conveying zone of the extruder, carrying out vacuumizing treatment by using a vacuum pump at the tail end of the extruder, and carrying out melting, extrusion and granulation by using the extruder under the vacuum pressure of less than 0.1MPa to obtain the ultra-high fluidity thermoplastic elastomer.
In the steps (2) and (3), the extruder is a homodromous double-screw extruder, the feeding rotating speed is 200r/min, the screw rotating speed is 450r/min, the length-diameter ratio of the screw is 60, the temperature of the first section is 90 ℃, and the temperature of the other sections is 190 ℃.
Example 3
The ultra-high fluidity thermoplastic elastomer applied to the automobile parts comprises the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 140 parts of polyolefin resin, 200 parts of thermoplastic elastomer, 200 parts of plasticizer, 80 parts of filler, 5 parts of scratch resistant agent, 2 parts of cross-linking agent, 2 parts of auxiliary cross-linking agent, 20 parts of lubricant, 4 parts of antioxidant and 4 parts of light stabilizer.
The polyolefin resin is a mixture of 30% of homopolypropylene, 30% of copolypropylene and 40% of metallocene polypropylene, the thermoplastic elastomer is a blend of 80% of styrene-ethylene-butylene-styrene block copolymer and 20% of styrene-ethylene-propylene-styrene block copolymer, the plasticizer is a blend of 20% of naphthenic oil, 30% of aromatic hydrocarbon oil and 50% of linear alkane oil, the filler is a mixture of 70% of calcium carbonate and 30% of carbon black, the scratch resistant agent is a mixture of 40% of polysiloxane, 30% of silicone master batch and 30% of dimethyl silicone oil, the crosslinking agent is tert-butyl peroxyisopropyl carbonate, the auxiliary crosslinking agent is a mixture of 50% of N, N' -m-phenylene bismaleimide and 50% of triallyl cyanurate, and the lubricant is a mixture of 30% of zinc stearate, 40% of oleamide and 30% of polyethylene wax.
The preparation method of the ultra-high fluidity thermoplastic elastomer specifically comprises the following steps:
(1) Sequentially adding a thermoplastic elastomer and 20% of plasticizer into a high-speed stirrer, stirring at a speed of 200r/min for 10 minutes, standing for 1 hour, and then adding ethylene propylene diene monomer, polyolefin resin, filler, scratch resistant agent, lubricant, antioxidant and light stabilizer into the high-speed stirrer together, and stirring at a speed of 200r/min for 5 minutes to obtain a premix A;
(2) Adding the premix A into an extruder, controlling the processing temperatures of a plasticizing melting zone and a melt conveying zone, continuously and quantitatively adding the premix A by a metering pump at the first section of the solid conveying zone of the extruder, adding 40% of plasticizer by the metering pump at the front section of the extruder, vacuumizing by a vacuum pump at the tail section of the extruder, and carrying out melting, extrusion and granulation on the premix by the extruder under the vacuum pressure lower than 0.1MPa to obtain an intermediate B;
(3) Adding the intermediate B into an extruder, controlling the processing temperatures of a plasticizing melting zone and a melt conveying zone, respectively carrying out continuous quantitative addition of the intermediate B, a cross-linking agent, a crosslinking aid and the rest plasticizer by using a metering pump at the first section of the solid conveying zone of the extruder, carrying out vacuumizing treatment by using a vacuum pump at the tail end of the extruder, and carrying out melting, extrusion and granulation by using the extruder under the vacuum pressure of less than 0.1MPa to obtain the ultra-high fluidity thermoplastic elastomer.
In the steps (2) and (3), the extruder is a homodromous double-screw extruder, the feeding rotating speed is 120r/min, the screw rotating speed is 350r/min, the length-diameter ratio of the screw is 56, the temperature of the first section is 70 ℃, and the temperature of the other sections is 180 ℃.
Comparative example 1:
the ultra-high fluidity thermoplastic elastomer applied to the automobile parts comprises the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 120 parts of polyolefin resin, 150 parts of thermoplastic elastomer, 150 parts of plasticizer, 100 parts of filler, 6 parts of scratch resistant agent, 2 parts of cross-linking agent, 2 parts of auxiliary cross-linking agent, 8 parts of lubricant, 3 parts of antioxidant and 6 parts of light stabilizer.
The polyolefin resin is selected from 60% of copolymerized polypropylene and 40% of metallocene polypropylene, the thermoplastic elastomer is a styrene-ethylene-butylene-styrene block copolymer with the styrene content of 30%, the plasticizer is a mixture of 40% of paraffin oil, 30% of naphthenic oil and 30% of aromatic hydrocarbon oil, the filler is a mixture of 30% of carbon black and 70% of white carbon black, the scratch-resistant agent is a mixture of 30% of silicone master batch and 70% of dimethyl silicone oil, the crosslinking agent is phenolic resin, the auxiliary crosslinking agent is 50% of N, N' -m-phenylene bismaleimide and 50% of trimethylolpropane trimethacrylate, and the lubricant is a mixture of 70% of zinc stearate and 30% of silicone.
The preparation method of the ultra-high fluidity thermoplastic elastomer specifically comprises the following steps:
(1) Adding ethylene propylene diene monomer, 50% polyolefin resin, filler, lubricant and antioxidant into a high-speed stirrer, maintaining at 200r/min, and stirring for 10min to obtain a premix A;
(2) Adding the premix A into an extruder, controlling the processing temperatures of a plasticizing melting zone and a melt conveying zone, continuously and quantitatively adding the premix A by using a metering pump at the first section of the solid conveying zone of the extruder, adding a plasticizer by using the metering pump at the front section of the extruder, vacuumizing by using a vacuum pump at the tail section of the extruder, and carrying out melting, extrusion and granulation on the premix by using the extruder to obtain a mixture B, wherein the vacuum pressure is lower than 0.1 MPa;
(3) Adding the mixture B into an extruder, controlling the processing temperatures of a plasticizing melting zone and a melt conveying zone, respectively carrying out continuous quantitative addition of the mixture B, a crosslinking agent and a crosslinking aid by using a metering pump at the first section of the solid conveying zone of the extruder, carrying out vacuumizing treatment by using a vacuum pump at the tail end of the extruder, wherein the vacuum pressure is lower than 0.1MPa, and carrying out melting, extrusion and granulation of the extruder to obtain a mixture C;
(4) Adding the mixture C, the thermoplastic elastomer, the rest polyolefin resin, the scratch resistant agent and the light stabilizer into a high-speed stirrer for 200r/min, stirring for 20 min, and standing for 2h to obtain a mixture D;
(5) Adding the mixture D into an extruder, controlling the processing temperatures of a plasticizing melting zone and a melt conveying zone, continuously and quantitatively adding the mixture D at the first section of the solid conveying zone of the extruder by using a metering pump, vacuumizing at the tail end of the extruder by using a vacuum pump, and performing melting, extrusion and granulation of the extruder under vacuum pressure lower than 0.1MPa to obtain a target product.
In the steps (2), (3) and (5), the extruder is a homodromous double-screw extruder, the feeding rotating speed is 120r/min, the screw rotating speed is 350r/min, the length-diameter ratio of the screw is 56, the temperature of the first section is 70 ℃, and the temperature of the other sections is 180 ℃.
Comparative example 2:
the ultra-high fluidity thermoplastic elastomer applied to the automobile parts comprises the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 120 parts of polyolefin resin, 150 parts of thermoplastic elastomer, 100 parts of plasticizer, 80 parts of filler, 10 parts of scratch resistant agent, 10 parts of cross-linking agent, 10 parts of auxiliary cross-linking agent, 10 parts of lubricant, 5 parts of antioxidant and 5 parts of light stabilizer.
The polyolefin resin is selected from 50% of homo-polypropylene and 50% of co-polypropylene, the thermoplastic elastomer is 50% of styrene-ethylene-butylene-styrene block copolymer and 50% of styrene-butadiene-styrene block copolymer, the plasticizer is 50% of paraffin oil, 30% of naphthenic oil and 20% of aromatic hydrocarbon oil blend, the filler is a mixture of 60% of mica powder and 40% of white carbon black, the scratch-resistant agent is a mixture of 50% of silicone master batch and 50% of dimethyl silicone oil, the crosslinking agent is tert-butyl peroxyisopropyl carbonate, the auxiliary crosslinking agent is 50% of N, N' -m-phenylene bismaleimide and 50% of triallyl cyanurate, and the lubricant is a mixture of 50% of magnesium stearate and 50% of silicone.
The preparation method of the ultra-high fluidity thermoplastic elastomer specifically comprises the following steps:
(1) Adding ethylene propylene diene monomer, 50% polyolefin resin, filler, lubricant and antioxidant into a high-speed stirrer, maintaining at 400r/min, and stirring for 10min to obtain a premix A;
(2) Adding the premix A into an extruder, controlling the processing temperatures of a plasticizing melting zone and a melt conveying zone, continuously and quantitatively adding the premix A by using a metering pump at the first section of the solid conveying zone of the extruder, adding a plasticizer by using the metering pump at the front section of the extruder, vacuumizing by using a vacuum pump at the tail section of the extruder, and carrying out melting, extrusion and granulation on the premix by using the extruder to obtain a mixture B, wherein the vacuum pressure is lower than 0.1 MPa;
(3) Adding the mixture B into an extruder, controlling the processing temperatures of a plasticizing melting zone and a melt conveying zone, respectively carrying out continuous quantitative addition of the mixture B, a crosslinking agent and a crosslinking aid by using a metering pump at the first section of the solid conveying zone of the extruder, carrying out vacuumizing treatment by using a vacuum pump at the tail end of the extruder, wherein the vacuum pressure is lower than 0.1MPa, and carrying out melting, extrusion and granulation of the extruder to obtain a mixture C;
(4) Adding the mixture C, the thermoplastic elastomer, the rest polyolefin resin, the scratch resistant agent and the light stabilizer into a high-speed stirrer for 200r/min, stirring for 20 min, and standing for 2h to obtain a mixture D;
(5) Adding the mixture D into an extruder, controlling the processing temperatures of a plasticizing melting zone and a melt conveying zone, continuously and quantitatively adding the mixture D at the first section of the solid conveying zone of the extruder by using a metering pump, vacuumizing at the tail end of the extruder by using a vacuum pump, and performing melting, extrusion and granulation of the extruder under vacuum pressure lower than 0.1MPa to obtain a target product.
In the steps (2), (3) and (5), the extruder is a homodromous double-screw extruder, the feeding rotating speed is 120r/min, the screw rotating speed is 350r/min, the length-diameter ratio of the screw is 56, the temperature of the first section is 90 ℃, and the temperature of the other sections is 200 ℃.
Detection result
The test method comprises the following steps: hardness, measurement standard is ISO 7619-1, A type;
tensile strength, test standard is ISO 37-1, tensile test rate is 500mm/min;
the tearing strength is measured according to ISO 34-1, the method B selects a right-angle sample without a cutting mouth, and the measuring speed is 500mm/min;
melt flow rate, test standard ISO 1133-1, method A,190 ℃,2.16kg;
the thermal aging is carried out according to the method specified in GB/T3512, the sample is placed in a constant thermal aging box, the sample is placed for 168 hours according to the specified temperature (130+/-2) DEG C, the sample is taken out, the sample is stored for at least 16 hours under the standard environment, the tensile strength is measured, and the change rate of the tensile strength is calculated:
scratch resistance performance a cross scratch test was performed according to the method specified in GB/T9286, and delta E was measured before and after the test using a color difference meter.
Table 1 measurement results
From the table above, it can be seen that: the thermoplastic elastomer prepared by the application has high melt flow rate and strong mechanical property strength, and compared with a comparative example, the thermoplastic elastomer has higher fluidity, mechanical property strength, better heat-resistant stability and scratch-resistant performance.
The thermoplastic elastomer in example 1 has higher styrene content, higher addition amount of crosslinking agent and auxiliary crosslinking agent, higher overall strength and better fluidity; compared with example 1, in example 2, the addition amount of polyolefin and thermoplastic elastomer is higher, the content of metallocene polypropylene is higher, homo-polypropylene is not added, and meanwhile, the addition amount of scratch resistance agent, cross-linking agent and cross-linking auxiliary agent is lower, so that the mechanical strength of the product is slightly poor, but the fluidity is good; compared with the example 2, the example 3 replaces a certain amount of homo-polypropylene, and the thermoplastic elastomer and the plasticizer are more in content, so that the fluidity is excellent, and meanwhile, certain mechanical strength, heat aging resistance and scratch resistance are ensured; compared with the example 2, the same material formula is used in the comparative example 1, but the processing process is to produce the TPV finished product as the self-made raw material according to the traditional method by dynamic vulcanization, and then produce according to the process of the thermoplastic elastomer, the production process is more complex, and the dispersion of EPDM and SEBS in the base material is worse, the mechanical property is lower, and the fluidity is obviously lower; compared with comparative example 1, the same production process is used in comparative example 2, the addition of metallocene polypropylene is reduced in the formulation design, the dosage of polypropylene resin, thermoplastic elastomer and plasticizer is also reduced, the dosage of cross-linking agent and cross-linking auxiliary agent is increased, and the product performance is shown as poorer flowability and relatively higher mechanical property.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. An ultra-high fluidity thermoplastic elastomer for automobile parts, characterized in that: the adhesive is prepared from the following components in parts by weight: 100 parts of ethylene propylene diene monomer, 80-200 parts of polyolefin resin, 80-200 parts of thermoplastic elastomer, 80-200 parts of plasticizer, 0-120 parts of filler, 5-20 parts of scratch resistant agent, 2-20 parts of cross-linking agent, 2-20 parts of auxiliary cross-linking agent, 1-20 parts of lubricant, 1-20 parts of antioxidant and 1-20 parts of light stabilizer.
2. The ultra-high flow thermoplastic elastomer of claim 1, wherein: the polyolefin resin is one or more of homo-polypropylene, co-polypropylene, metallocene polypropylene and polyethylene.
3. The ultra-high flow thermoplastic elastomer of claim 1, wherein: the thermoplastic elastomer is one or a plurality of blends of styrene-butadiene-styrene block copolymer, styrene-ethylene-butylene-styrene block copolymer and styrene-ethylene-propylene-styrene block copolymer.
4. The ultra-high flow thermoplastic elastomer of claim 1, wherein: the plasticizer has a flash point of more than 200 ℃ and a kinematic viscosity of more than 100mm at 40 DEG C 2 One or more blends of paraffinic, naphthenic, aromatic, linear paraffinic oils.
5. The ultra-high flow thermoplastic elastomer of claim 1, wherein: the filler is at least one of calcium carbonate, talcum powder, kaolin, mica, wollastonite, barium sulfate, carbon black, white carbon black and titanium pigment;
the scratch resistant agent is one or more of siloxane, polysiloxane, silicone master batch and dimethyl silicone oil.
6. The ultra-high flow thermoplastic elastomer of claim 1, wherein: the lubricant is one or more of erucamide, oleamide, zinc stearate, magnesium stearate, silicone and polyethylene wax.
7. The ultra-high flow thermoplastic elastomer of claim 1, wherein: the cross-linking agent is one or more of isopropyl tert-butyl peroxycarbonate, odorless dicumyl peroxide, phenolic resin and modified methyltriacetoxysilane.
8. The ultra-high flow thermoplastic elastomer of claim 1, wherein: the auxiliary cross-linking agent is one or more of bismaleimide, trimethylolpropane trimethacrylate, trialkenyl methyl triisocyanurate, 3-triethoxysilyl-1-propylamine, triallyl isocyanurate, N' -m-phenylene bismaleimide and triallyl cyanurate.
9. A process for the preparation of an ultra-high flow thermoplastic elastomer according to any one of claims 1 to 8, characterized in that: the preparation method comprises the following preparation steps:
(1) Sequentially adding 20-40wt% of the thermoplastic elastomer and the plasticizer into a high-speed stirrer, stirring at a speed of 100-500r/min for 10-30 minutes, and standing for 1-4 hours; then ethylene propylene diene monomer, polyolefin resin, filler, scratch resistant agent, lubricant, antioxidant and light stabilizer are put into a high-speed mixer together and stirred for 5-10 minutes at the speed of 100-500r/min to obtain a premix A;
(2) Adding the premix A into an extruder, controlling the processing temperatures of a plasticizing melting zone and a melt conveying zone, continuously and quantitatively adding the premix A by a metering pump at the first section of the solid conveying zone of the extruder, adding 20-40wt% of plasticizer by the metering pump at the front section of the extruder, vacuumizing by a vacuum pump at the tail section of the extruder, and melting, extruding and granulating the premix by the extruder to obtain an intermediate B;
(3) Adding the intermediate B into an extruder, controlling the processing temperatures of a plasticizing melting zone and a melt conveying zone, respectively carrying out continuous quantitative addition of the intermediate B, a cross-linking agent, a crosslinking aid and the rest plasticizer by using a metering pump at the first section of the solid conveying zone of the extruder, carrying out vacuumizing treatment at the tail end of the extruder by using a vacuum pump, and carrying out melting, extrusion and granulation of the extruder to obtain the thermoplastic elastomer with ultrahigh fluidity.
10. The method of preparing according to claim 9, wherein: the extruders in the steps (2) and (3) are all homodromous double-screw extruders, the feeding rotating speed is 60-300r/min, the screw rotating speed is 200-500r/min, and the length-diameter ratio of the screw is 52-64;
in the steps (2) and (3), the temperature of the first section of the solid conveying area of the extruder is not more than 120 ℃, and the temperature of the other sections is 150-240 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211705349.6A CN116120672A (en) | 2022-12-29 | 2022-12-29 | Ultrahigh-fluidity thermoplastic elastomer for automobile parts and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211705349.6A CN116120672A (en) | 2022-12-29 | 2022-12-29 | Ultrahigh-fluidity thermoplastic elastomer for automobile parts and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116120672A true CN116120672A (en) | 2023-05-16 |
Family
ID=86309500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211705349.6A Pending CN116120672A (en) | 2022-12-29 | 2022-12-29 | Ultrahigh-fluidity thermoplastic elastomer for automobile parts and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116120672A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109486217A (en) * | 2018-12-27 | 2019-03-19 | 南通普力马弹性体技术有限公司 | A kind of preparation method of thermoplastic elastic material for automobile interiors |
| CN112574579A (en) * | 2020-12-11 | 2021-03-30 | 安徽中翰高分子科技有限公司 | Scratch-resistant thermoplastic elastomer and preparation method thereof |
-
2022
- 2022-12-29 CN CN202211705349.6A patent/CN116120672A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109486217A (en) * | 2018-12-27 | 2019-03-19 | 南通普力马弹性体技术有限公司 | A kind of preparation method of thermoplastic elastic material for automobile interiors |
| CN112574579A (en) * | 2020-12-11 | 2021-03-30 | 安徽中翰高分子科技有限公司 | Scratch-resistant thermoplastic elastomer and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112063048B (en) | Low-dielectric high-melt-strength flame-retardant polypropylene material and preparation method thereof | |
| CN106243480B (en) | EVA (ethylene-vinyl acetate) type wear-resistant flame-retardant elastomer material and preparation method thereof | |
| CN109401243B (en) | High-toughness bio-based polylactic acid/reactive modified rubber thermoplastic vulcanized rubber blending material and secondary reaction extrusion preparation method thereof | |
| CN110437549A (en) | A kind of peroxide cure thermoplastic elastic material and preparation method thereof | |
| CN108841073B (en) | Flame-retardant dynamically vulcanized PP/POE elastomer and preparation method thereof | |
| CN112708207B (en) | Polypropylene composite material without tiger stripes and preparation method thereof | |
| CN104629184A (en) | Composite material containing polybutylene alloy and preparation method thereof | |
| CN108250606B (en) | Ultra-low temperature resistant ASA composite material and preparation method thereof | |
| CN112552582A (en) | Anti-tiger stripe and high-heat-resistance automobile instrument board material and preparation method and application thereof | |
| CN114891356A (en) | Thermoplastic elastomer material and preparation method thereof | |
| CN114933730A (en) | Ethylene propylene diene monomer elastomer foam sponge material and preparation method thereof | |
| CN103102578A (en) | Low temperature-resistant thermoplastic elastomer and preparation method thereof | |
| CN103483687A (en) | High-strength polypropylene resin and preparation method thereof | |
| CN109796767A (en) | A kind of silicon rubber/polyolefin thermoplastic elastomer with sliding cross-linked network | |
| CN107501717B (en) | Polypropylene filling master batch and preparation method thereof | |
| CN107541004B (en) | Load-resistant and fatigue-resistant TPE (thermoplastic elastomer) and preparation method thereof | |
| CN111269581A (en) | Thermoplastic elastomer material and preparation method thereof | |
| CN107964173A (en) | A kind of EPDM sulfuration thermoplastic elastomers of ultra-low-smell and preparation method thereof | |
| CN102295797B (en) | Zero-halogen flame-retardant polyolefin material and preparation method as well as application thereof | |
| CN116120672A (en) | Ultrahigh-fluidity thermoplastic elastomer for automobile parts and preparation method thereof | |
| CN107540935B (en) | Polypropylene reclaimed material composition and preparation method thereof | |
| CN113930013B (en) | Vulcanized enhanced scratch-resistant silicone master batch and preparation method thereof | |
| CN112724578B (en) | Polypropylene compound and application and preparation method thereof | |
| CN114031863A (en) | High-conductivity PS/HDPE composite material and preparation method thereof | |
| CN113717471B (en) | High-surface tension polypropylene composite material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |