CN103159998B - Tire tread material with high wet and skid resistance and preparation method of material - Google Patents
Tire tread material with high wet and skid resistance and preparation method of material Download PDFInfo
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- CN103159998B CN103159998B CN201310123740.XA CN201310123740A CN103159998B CN 103159998 B CN103159998 B CN 103159998B CN 201310123740 A CN201310123740 A CN 201310123740A CN 103159998 B CN103159998 B CN 103159998B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 239000000463 material Substances 0.000 title abstract description 19
- 229920001971 elastomer Polymers 0.000 claims abstract description 61
- 239000005060 rubber Substances 0.000 claims abstract description 61
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 21
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 17
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 12
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 12
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 12
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000008117 stearic acid Substances 0.000 claims abstract description 12
- 239000011787 zinc oxide Substances 0.000 claims abstract description 12
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000005864 Sulphur Substances 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims description 104
- 239000011230 binding agent Substances 0.000 claims description 27
- 238000002844 melting Methods 0.000 claims description 27
- 230000008018 melting Effects 0.000 claims description 27
- 239000003292 glue Substances 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 21
- 239000011159 matrix material Substances 0.000 claims description 15
- 239000004902 Softening Agent Substances 0.000 claims description 11
- 244000059549 Borneo rubber Species 0.000 claims description 9
- 241000985973 Castilla ulei Species 0.000 claims description 9
- 238000003490 calendering Methods 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 8
- 239000006229 carbon black Substances 0.000 abstract description 32
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 26
- 238000005096 rolling process Methods 0.000 abstract description 8
- 229920003048 styrene butadiene rubber Polymers 0.000 abstract description 8
- 244000043261 Hevea brasiliensis Species 0.000 abstract description 6
- 239000002131 composite material Substances 0.000 abstract description 6
- 229920003052 natural elastomer Polymers 0.000 abstract description 6
- 229920001194 natural rubber Polymers 0.000 abstract description 6
- 239000005062 Polybutadiene Substances 0.000 abstract 1
- 150000001993 dienes Chemical class 0.000 abstract 1
- 239000005543 nano-size silicon particle Substances 0.000 abstract 1
- 239000004014 plasticizer Substances 0.000 abstract 1
- 229920002857 polybutadiene Polymers 0.000 abstract 1
- 235000019241 carbon black Nutrition 0.000 description 29
- 239000004567 concrete Substances 0.000 description 7
- 229920003193 cis-1,4-polybutadiene polymer Polymers 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229960001866 silicon dioxide Drugs 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000010058 rubber compounding Methods 0.000 description 2
- 229920001897 terpolymer Polymers 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 125000005373 siloxane group Chemical group [SiH2](O*)* 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The invention relates to the technical field of rubber and particularly relates to a preparation method of a tire tread composite material with high wet and skid resistance. The composite material is characterized by containing the following materials in parts by weight: 100 parts of dienes rubber (concretely including styrene butadiene rubber, butadiene rubber, natural rubber, integrated rubber and a composite of the integrated rubber), 50-80 parts of stuffing (concretely including carbon black, white carbon black and a composite of the white carbon black), 0-6.4 parts of silane coupling agent, 0.5-3 parts of silicon carbide,10-40 parts of plasticizer, 2-5 parts of zinc oxide, 1-3 parts of stearic acid, 2-4 parts of anti-aging agent, 2-4 parts of accelerant and 1-3 parts of sulphur. By adoption of the material prepared by the method, the rolling resistance of a tire can be reduced, the wear-resisting property of the tire tread is not affected simultaneously, and especially, the wet and skid resistance of the tire is greatly increased by utilizing the nano silicon carbide material.
Description
Technical field
The present invention relates to field of rubber technology, specifically a kind of preparation method of high wet-sliding resistant tire tread rubber matrix material.
Background technology
Wet-sliding resistant performance weighs the driving safety in automobile use procedure, the key index of the driving safety especially under wet-skid road surface condition.The development of adjoint automobile power technology and Modern High-Speed highway, the travel speed of automobile was greatly increased more in the past, and therefore tire wet-sliding resistant performance is more important with regard to what show.From the angle of rubber viscoelasticity, the wet-sliding resistant performance of tread-rubber can be characterized by the tan δ value of 0 DEG C in dynamic viscoelastic spectrogram, tan δ value when 0 DEG C is high, show that the wet-sliding resistant performance of rubber is good, but only by the viscoelasticity of rubber, namely 0 DEG C time the height of tan δ value, the quality of tire tread material wet-sliding resistant performance can not be judged very accurately.When tread rubber contacts with road surface, to frictional force work be exactly nothing but surface several to dozens of rubber molecule layers, usually on dry pavement, tire traction is produced by the friction on tread rubber and road surface, but when the wet road traveling of automobile in the rainy day, due to the existence of water, between tire tread and road surface, there is water membrane interval, and then greatly reduce the gripping power of tire.And if a kind of component that can puncture moisture film can be added in tread-rubber formula, the wet-sliding resistant performance of tire can be significantly improved.Research in the past designs from rubber molecule, and different-grain diameter white carbon black particle coordinates and the angle of tyre tread design gives scheme to this problem of raising tire wet-sliding resistant performance.
CN101962423A(Shen Qing Publication day: on February 2nd, 2011) research undertaken by preparing conjugated-diolefin/uni-vinyl-arene copolymer rubber to solution polymerization in patent finds, use the composite structure regulation system of asymmetrical ether and anion surfactant, can prepare and have compared with the micro-block concentration of low polystyrene, the high wet-sliding resistant of medium vinyl content and the terpolymer rubber of low-rolling-resistance.The value of this terpolymer 0 DEG C of tan δ is between 0.25-0.96, preferred 0.35-0.5, and the value of the tan δ of 60 DEG C is lower than 0.12.
December 10 2008 CN101319064A(publication date) in patent by adding silane coupling agent end-blocking latter stage in solution polymerized butadiene styrene rubber polymerization, the solution polymerized butadiene styrene rubber glue of obtained end strips siloxane groups, fully stir add white carbon black powder in glue after, after being total to cohesion, thermal treatment, obtaining the matrix material of molecular end and the firm keyed jointing of filler.This nano composite material has excellent filler-rubber interactions and interface cohesion, shows high wet-sliding resistant, low-rolling-resistance, excellent composition machine performance.
January 30 2008 CN101113217A(publication date) rubber combination described in patent comprises the silicon-dioxide with the median size being not less than 22nm being not less than 10 weight parts and the silicon-dioxide with the average primary particle diameter being less than 22nm being not less than 5 weight parts, and wherein two kinds of silicon-dioxide total amounts are 15-150 weight part.The tread-rubber matrix material obtained effectively can improve the wet-sliding resistant performance of tire, and wear hardness and manipulation stability, reduce the rolling resistance of tire simultaneously.
CN201619401 U(publication date on November 3rd, 2010) in patent by being fixedly connected with sandwich glue in tyre surface inside, crown is made to form projection, because the hardness ratio tread portion of this sandwich glue is high, thus can effectively destroy the moisture film formed between tyre surface and road surface, improve the gripping power on tyre surface and road surface.
CN1708417A(publication date on December 14th, 2005) adjust the chamfering of bossing simultaneously by increasing lateral trench in tire tread pattern and then effectively the water on wet-skid road surface led away from tire ground contact patch, improve the wet-sliding resistant performance of tire thus.
Due to the dependency that rubber viscoelasticity (size of 0 DEG C of tan δ value) and tire wet-sliding resistant performance are limited, use the rubber possessing higher 0 DEG C of tan δ value can only produce limited impact to tire anti-slippery.Use sandwich glue scheme greatly to increase complicacy in tyre production process, simultaneously owing to there is the poor problem of bonding force between two-phase, thus the security of tire may be reduced.In addition, the increase of lateral trench on tread pattern, can affect the manipulation stability of tire.As everyone knows, white carbon black is filled tread-rubber and is had the better wet-sliding resistant performance of comparatively black filled rubber, wherein very important reason is exactly the particle hardness (Mohs' hardness) that white carbon black has far above carbon black, the white carbon black with higher microcosmic particle hardness is filled glue and is more easily punctured moisture film on wet-skid road surface, and then improves the wet-sliding resistant performance of tire.By adding a small amount of nanometer silicon carbide in rubber compounding in the present invention, significantly improving the ability that tire destroys moisture film on wet-skid road surface, and then significantly improve its wet-sliding resistant performance.Meanwhile, the rolling resistance of tire can not increase, and the wear resisting property of tyre surface can improve.Carbon black, particle diameter and the surface property of white carbon black and silicon carbide are as shown in table 1.
Table 1. carbon black, the particle properties of white carbon black and silicon carbide
Summary of the invention
The invention provides a kind of preparation method of high wet-sliding resistant tread-rubber matrix material.The object of this invention is to provide a kind of high wet-sliding resistant tread-rubber matrix material, this tread rubber material can improve the wet-sliding resistant performance of tire, can reduce again the rolling resistance of tire under the prerequisite not affecting tread wear energy simultaneously.
To achieve these goals, present invention employs following technical scheme:
A kind of high wet-sliding resistant tread-rubber matrix material, its mixing ratio is counted by weight, specific as follows:
Polydiene 100 parts, filler 50-90 part, silane coupling agent 0-6.4 part, silicon carbide 0.5-3 part, softening agent 10-40 part, zinc oxide 2-5 part, stearic acid 1-3 part, anti-aging agent 2-4 part, promotor 2-4 part, sulphur 1-3 part.Described polydiene matrix comprises styrene-butadiene rubber(SBR), natural rubber, cis-1,4-polybutadiene rubber, integrated rubber, or the mixture of two or more above-mentioned rubber; Reinforced filling is the mixture of carbon black, precipitated silica or above filler; The silicon carbide used is nano level silicon carbide powder.
High wet-sliding resistant tread-rubber composite material and preparation method thereof, is characterized in that comprising following calendering process step:
A. by whole rubber, account for the filler of total consumption 50%-100%, whole silicon carbide, the mixing room that silane coupling agent drops into Banbury mixer is carried out mixing, and melting temperature controls at 145-165 DEG C, and mixing time is 180-240 second; Binder removal, obtains one section of rubber unvulcanizate, and one section of rubber unvulcanizate is cooled to room temperature in atmosphere.
B. rubber unvulcanizate step A obtained, remaining filler, whole zinc oxide, stearic acid, anti-aging agent, the banburying chamber that softening agent drops into Banbury mixer carries out mixing, and melting temperature controls at 145-165 DEG C, and mixing time is 180-240 second; Binder removal, obtains two-stage mixing glue, and two-stage mixing glue is cooled to room temperature in atmosphere.
C. rubber unvulcanizate step B obtained, carry out mixing in the banburying chamber of promotor and vulcanizing agent input Banbury mixer, melting temperature controls at 90-110 DEG C, and mixing time is 120-180 second; Binder removal, obtains finished composition, and finished composition is cooled to room temperature in atmosphere.
The invention has the beneficial effects as follows, by adding a small amount of nanometer silicon carbide in rubber compounding, improve tire wet-sliding resistant performance significantly, the rolling resistance of tire can be reduced again simultaneously under the prerequisite not affecting tread wear energy.
Embodiment
Comparative example: carbon black filled tire tread rubber material, mixing ratio with the formula of parts by weight, in table 2:
Table 2 comparative example formula
The concrete calendering process of matrix material:
A. by whole styrene-butadiene rubber(SBR), natural rubber and cis-1,4-polybutadiene rubber, the carbon black of 10 phr, the white carbon black of 30 phr and 2.4 phr silane coupling agents drop into internal mixer mixing chamber and carry out mixing, and melting temperature controls at 145 DEG C, and mixing time is 180 seconds; Binder removal, obtains one section of rubber unvulcanizate, and one section of rubber unvulcanizate is cooled to room temperature in atmosphere.
B. rubber unvulcanizate step A obtained, remaining 30 phr carbon blacks, whole zinc oxide, stearic acid, anti-aging agent, softening agent drops into internal mixer mixing chamber and carries out mixing, and melting temperature controls at 155 DEG C, and mixing time is 240 seconds; Binder removal, obtains two-stage mixing glue, and two-stage mixing glue is cooled to room temperature in atmosphere.
C. rubber unvulcanizate step B obtained, promotor and vulcanizing agent drop into internal mixer mixing chamber and carry out mixing, and melting temperature controls at 100 DEG C, and mixing time is 120 seconds; Binder removal, obtains finished composition, and finished composition is cooled to room temperature in atmosphere.
Embodiment 1: anti-slippery tire tread material, mixing ratio with the formula of parts by weight, in table 3:
The formula of table 3. embodiment 1
The concrete calendering process of matrix material:
A. by whole styrene-butadiene rubber(SBR), natural rubber and cis-1,4-polybutadiene rubber, the carbon black of 10 phr, the white carbon black of 30 phr, the mixing room that whole silicon carbide and silane coupling agent put into Banbury mixer is carried out mixing, and melting temperature controls at 155 DEG C, and mixing time is 240 seconds; Binder removal, obtains one section of rubber unvulcanizate, and one section of rubber unvulcanizate is cooled to room temperature in atmosphere.
B. rubber unvulcanizate step A obtained, remaining 30 phr carbon blacks, whole zinc oxide, stearic acid, anti-aging agent, softening agent drops into internal mixer mixing chamber and carries out mixing, and melting temperature controls at 155 DEG C, and mixing time is 240 seconds; Binder removal, obtains two-stage mixing glue, and two-stage mixing glue is cooled to room temperature in atmosphere.
C. rubber unvulcanizate step B obtained, promotor and vulcanizing agent drop into internal mixer mixing chamber and carry out mixing, and melting temperature controls at 110 DEG C, and mixing time is 120 seconds; Binder removal, obtains finished composition, and finished composition is cooled to room temperature in atmosphere.
Embodiment 2: anti-slippery tire tread material, mixing ratio with the formula of parts by weight, in table 4:
The formula of table 4. embodiment 2
The concrete calendering process of matrix material:
A. by whole styrene-butadiene rubber(SBR), natural rubber and cis-1,4-polybutadiene rubber, the carbon black of 10 phr, the white carbon black of 30 phr, whole silicon carbide and silane coupling agent drop into and carry out mixing in internal mixer mixing chamber, and melting temperature controls at 155 DEG C, and mixing time is 240 seconds; Binder removal, obtains one section of rubber unvulcanizate, and one section of rubber unvulcanizate is cooled to room temperature in atmosphere.
B. rubber unvulcanizate step A obtained, remaining 30 phr carbon blacks, whole zinc oxide, stearic acid, anti-aging agent, softening agent drops into internal mixer mixing chamber and carries out mixing, and melting temperature controls at 155 DEG C, and mixing time is 240 seconds; Binder removal, obtains two-stage mixing glue, and two-stage mixing glue is cooled to room temperature in atmosphere.
C. rubber unvulcanizate step B obtained, promotor and vulcanizing agent drop into internal mixer mixing chamber and carry out mixing, and melting temperature controls at 110 DEG C, and mixing time is 120 seconds; Binder removal, obtains finished composition, and finished composition is cooled to room temperature in atmosphere.
Embodiment 3: anti-slippery tire tread material, mixing ratio with the formula of parts by weight, in table 5:
The formula of table 5. embodiment 3
The concrete calendering process of matrix material:
A. by whole styrene-butadiene rubber(SBR) and cis-1,4-polybutadiene rubber, the white carbon black of 40 phr, whole silicon carbide and silane coupling agent drop into and carry out mixing in internal mixer mixing chamber, and melting temperature controls at 155 DEG C, and mixing time is 240 seconds; Binder removal, obtains one section of rubber unvulcanizate, and one section of rubber unvulcanizate is cooled to room temperature in atmosphere.
B. rubber unvulcanizate step A obtained, remaining 40 phr white carbon blacks, whole zinc oxide, stearic acid, anti-aging agent, softening agent drops into internal mixer mixing chamber and carries out mixing, and melting temperature controls at 155 DEG C, and mixing time is 240 seconds; Binder removal, obtains two-stage mixing glue, and two-stage mixing glue is cooled to room temperature in atmosphere.
C. rubber unvulcanizate step B obtained, promotor and vulcanizing agent drop into internal mixer mixing chamber and carry out mixing, and melting temperature controls at 110 DEG C, and mixing time is 120 seconds; Binder removal, obtains finished composition, and finished composition is cooled to room temperature in atmosphere.
Embodiment 4: anti-slippery tire tread material, mixing ratio with the formula of parts by weight, in table 6:
The formula of table 6. embodiment 4
The concrete calendering process of matrix material:
A. by 100 phr integrated rubbers, the white carbon black of 35 phr, whole silicon carbide and silane coupling agent drop into and carry out mixing in internal mixer mixing chamber, and melting temperature controls at 155 DEG C, and mixing time is 240 seconds; Binder removal, obtains one section of rubber unvulcanizate, and one section of rubber unvulcanizate is cooled to room temperature in atmosphere.
B. rubber unvulcanizate step A obtained, remaining 35 phr white carbon blacks, whole zinc oxide, stearic acid, anti-aging agent, softening agent drops into internal mixer mixing chamber and carries out mixing, and melting temperature controls at 145 DEG C, and mixing time is 240 seconds; Binder removal, obtains two-stage mixing glue, and two-stage mixing glue is cooled to room temperature in atmosphere.
C. rubber unvulcanizate step B obtained, promotor and vulcanizing agent drop into internal mixer mixing chamber and carry out mixing, and melting temperature controls at 110 DEG C, and mixing time is 180 seconds; Binder removal, obtains finished composition, and finished composition is cooled to room temperature in atmosphere.
Embodiment 5: anti-slippery tire tread material, mixing ratio with the formula of parts by weight, in table 7:
The formula of table 7. embodiment 5
The concrete calendering process of matrix material:
A. by whole styrene-butadiene rubber(SBR) and cis-1,4-polybutadiene rubber, the carbon black of 50 phr, carry out mixing in whole silicon carbide input internal mixer mixing chambers, melting temperature controls at 165 DEG C, and mixing time is 180 seconds; Binder removal, obtains one section of rubber unvulcanizate, and one section of rubber unvulcanizate is cooled to room temperature in atmosphere.
B. rubber unvulcanizate step A obtained, whole zinc oxide, stearic acid, anti-aging agent, softening agent drops into internal mixer mixing chamber and carries out mixing, and melting temperature controls at 165 DEG C, and mixing time is 180 seconds; Binder removal, obtains two-stage mixing glue, and two-stage mixing glue is cooled to room temperature in atmosphere.
C. rubber unvulcanizate step B obtained, promotor and vulcanizing agent drop into internal mixer mixing chamber and carry out mixing, and melting temperature controls at 90 DEG C, and mixing time is 120 seconds; Binder removal, obtains finished composition, and finished composition is cooled to room temperature in atmosphere.
Embodiment 6: anti-slippery tire tread material, mixing ratio with the formula of parts by weight, in table 8:
The formula of table 8. embodiment 6
The concrete calendering process of matrix material:
A. by whole styrene-butadiene rubber(SBR) and natural rubber, the white carbon black of 50 phr, carry out mixing in whole silicon carbide input internal mixer mixing chambers, melting temperature controls at 155 DEG C, and mixing time is 240 seconds; Binder removal, obtains one section of rubber unvulcanizate, and one section of rubber unvulcanizate is cooled to room temperature in atmosphere.
B. rubber unvulcanizate step A obtained, remaining 10 phr carbon blacks, 20 phr white carbon blacks, whole zinc oxide, stearic acid, anti-aging agent, softening agent drops into internal mixer mixing chamber and carries out mixing, and melting temperature controls at 155 DEG C, and mixing time is 240 seconds; Binder removal, obtains two-stage mixing glue, and two-stage mixing glue is cooled to room temperature in atmosphere.
C. rubber unvulcanizate step B obtained, promotor and vulcanizing agent drop into internal mixer mixing chamber and carry out mixing, and melting temperature controls at 110 DEG C, and mixing time is 180 seconds; Binder removal, obtains finished composition, and finished composition is cooled to room temperature in atmosphere.
To the rubber unvulcanizate prepared, we adopt mould to suppress and sulfuration obtains vulcanized rubber, its mechanical property, wet-sliding resistant performance at 151 DEG C, and rolling resistance and wear hardness test result are shown in table 9.Wherein, the wet-sliding resistant performance of tire tread material we use BPST wet friction coefficient instrument tester to characterize, the anti-slippery index of BPST is high shows that the wet-sliding resistant performance of tire tread material is good; Rolling resistance we adopt the tan δ value of 60 DEG C to characterize, the tan δ value of 60 DEG C is low shows that the rolling resistance of material is low; Wear hardness adopts Akron abrasion volume worn scale to levy, and wear loss shows that more greatly wear resisting property is poorer.
Table 9. vulcanized rubber physical properties
Claims (1)
1. a high wet-sliding resistant tread-rubber matrix material, it is characterized in that: mixing ratio with parts by weight, polydiene 100 parts, filler 50-80 part, silane coupling agent 0-6.4 part, silicon carbide 0.5-3 part, softening agent 10-40 part, zinc oxide 2-5 part, stearic acid 1-3 part, anti-aging agent 2-4 part, promotor 2-4 part, sulphur 1-3 part;
Preparation method comprises following calendering process step:
A. by whole rubber, account for the filler of total consumption 50%-100%, the mixing room that whole silicon carbide and silane coupling agent drop into Banbury mixer is carried out mixing, and melting temperature controls at 145-165 DEG C, and mixing time is 180-240 second; Binder removal, obtains one section of rubber unvulcanizate, and one section of rubber unvulcanizate is cooled to room temperature in atmosphere;
B. rubber unvulcanizate step A obtained, remaining filler, whole zinc oxide, stearic acid, anti-aging agent, the banburying chamber that softening agent drops into Banbury mixer carries out mixing, and melting temperature controls at 145-165 DEG C, and mixing time is 180-240 second; Binder removal, obtains two-stage mixing glue, and two-stage mixing glue is cooled to room temperature in atmosphere;
C. rubber unvulcanizate step B obtained, the banburying chamber that promotor and vulcanizing agent drop into Banbury mixer carries out mixing, and melting temperature controls at 90-110 DEG C, and mixing time is 120-180 second; Binder removal, obtains finished composition, and finished composition is cooled to room temperature in atmosphere.
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| CN109456513B (en) * | 2018-09-28 | 2021-11-16 | 潍坊职业学院 | Wear-resistant tire rubber and preparation method thereof |
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| CN112812391B (en) * | 2021-02-05 | 2022-09-06 | 中国科学院青岛生物能源与过程研究所 | High-wet-skid-resistance tire tread rubber composite material and preparation method thereof |
| CN114292449A (en) * | 2021-12-31 | 2022-04-08 | 江苏绿源橡胶资源循环利用创新中心有限公司 | Heat-resistant, corrosion-resistant and wear-resistant functional rubber |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102675701A (en) * | 2012-04-13 | 2012-09-19 | 平顶山易成新材料股份有限公司 | Rubber composition with low compression heat and small rolling resistance |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102675701A (en) * | 2012-04-13 | 2012-09-19 | 平顶山易成新材料股份有限公司 | Rubber composition with low compression heat and small rolling resistance |
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