CN105315525A - Tire tread rubber material with high wet skid resistance and low rolling resistance as well as preparation method and application thereof - Google Patents
Tire tread rubber material with high wet skid resistance and low rolling resistance as well as preparation method and application thereof Download PDFInfo
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- CN105315525A CN105315525A CN201510906315.7A CN201510906315A CN105315525A CN 105315525 A CN105315525 A CN 105315525A CN 201510906315 A CN201510906315 A CN 201510906315A CN 105315525 A CN105315525 A CN 105315525A
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- 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 tires, in particular to a tire tread rubber material with high wet skid resistance and low rolling resistance. Comprises the following components: (1) 100 parts of rubber main material: comprises 1 to 60 weight portions of cis-1, 4-polyisoprene rubber and 1 to 80 weight portions of styrene-butadiene copolymer synthetic rubber; (2) compounding agents: the compounding agent comprises 1-10 parts by weight of silane coupling agent based on 100 parts by weight of the rubber main material. The structural formula of the silane coupling agent is (R)1O)3Si(R2)3SC＝OR3Wherein: r1、R2Is a monovalent hydrocarbon group having 1 to 5 carbon atoms, R3Is a monovalent hydrocarbon group having 5 to 10 carbon atoms. The rubber material has high comprehensive performance and high physical performance, the wet and slippery performance of the rubber material is obviously improved, and the rolling resistance performance is kept unchanged.
Description
Technical field
The present invention relates to the technical field of tire, particularly relate to the tire tread compound of high wet-sliding resistant and low-rolling-resistance and method for making thereof and application.
Background technology
Half steel tire tread, its performance is mainly reflected in high abrasion, high wet-sliding resistant and low-rolling-resistance three aspect.The rolling resistance of usual tire and anti-slippery are restrictions mutually, how to provide the high wet-sliding resistant of a kind of low-rolling-resistance, high wet-sliding resistant performance and the tire tread compound of low-rolling-resistance to be current urgent problems.
Identical rubber clone and proportioning, the difference of additive etc. can make its performance generation difference.Prior art is to add white carbon black and silane coupling agent improves rolling resistance and anti-slippery.
The white carbon black tyre surface formula of known existing half steel tire, the silane coupling agent used is as shown in the formula the Si69 shown in (1) or as shown in the formula the Si75 shown in (2), wherein Si69 contains four sulphur, belong to polysulfidic bond, this structure, can rupture in higher than 160 DEG C; Wherein Si75 contains two sulphur, can rupture higher than 165 DEG C.
(EtO)
3SiCH
2CH
2CH
2-S-S-S-S-CH
2CH
2CH
2Si(EtO)
3
Formula (1)
(EtO)
3SiCH
2CH
2CH
2-S-S-CH
2CH
2CH
2Si(EtO)
3
Formula (2)
The silane group of above-mentioned silane coupling agent and white carbon black react slowly, and have sulphur to disengage, incipient scorch has a big risk, mixing complete after, white carbon black can occur to reunite again, and the viscosity of mixing complete sizing material can rise, and causes the unstable properties of sizing material.
Above-mentioned white carbon black system formulation calendering process, promotor adds at productivity mixing section, this is because promotor can draw the common silane coupling agent cystine linkage of impact or fracture occurs four sulfide linkages and rubber molecular chain produces crosslinked, cause early stage incipient scorch, increase the danger of producing.
Summary of the invention
The invention provides the tire tread compound of a kind of high wet-sliding resistant and low-rolling-resistance.This tyre surface has the over-all properties of high physicals, high wet-sliding resistant and low-rolling-resistance.
Specifically, for the deficiencies in the prior art, the invention provides following technical scheme:
The invention provides the tire tread compound of a kind of high wet-sliding resistant and low-rolling-resistance, comprise following component:
(1) rubber major ingredient 100 weight part: comprise 1-60 weight part along Isosorbide-5-Nitrae-polyisoprene rubber, 1-80 parts by weight of styrene-butadienecopolymer synthetic rubber;
(2) Synergist S-421 95: in the rubber major ingredient of 100 weight parts, described Synergist S-421 95 comprises 1-10 weight part silane coupling agent.
Preferably, described silane coupling agent structural formula is (R
1o)
3si (R
2)
3sC=OR
3, wherein: R
1, R
2the monovalent hydrocarbon with 1 ~ 5 carbon atom, R
3it is the monovalent hydrocarbon with 5 ~ 10 carbon atoms.
Preferably, in 100 parts by weight of rubber major ingredients, the Synergist S-421 95 of this sizing material also comprises carbon black 9 weight part, white carbon black 80 weight part, White carbon black dispersant 3.5 weight part, anti-aging agent 4 weight part, stearic acid 2 weight part, zinc oxide 3.5 weight part, oil-filled 1.6 weight parts of SULPHUR POWDER, aromatic hydrocarbon oil 8 weight part and promotor 3.7 weight part.
Preferably, following ingredients weight parts is comprised: 45 weight parts are along Isosorbide-5-Nitrae-polyisoprene rubber, 75.7 parts by weight of styrene-butadienecopolymer synthetic rubber, 6.4 weight part silane coupling agents.
Preferably, described promotor comprises accelerant N, N '-diphenylguanidine 1.8 weight part, accelerator N-tertiary butyl-2-[4-morpholinodithio time yellow acid amides 1.9 weight part.
Preferably, described anti-aging agent comprises anti-aging agent N (1,3 dimethylbutyl)-N ' diphenyl-para-phenylene diamine 2 weight part, anti-aging agent 2,2,4 trimethyl 1,2 dihydroquinoline polymer 2 weight part.
Beneficial effect: silane coupling agent (R of the present invention
1o)
3si (R
2)
3sC=OR
3use, over-all properties is high, has high physicals, and significantly improves the wet and slippery performance of sizing material, and keeps that to roll resistive energy constant.
The present invention also provides a kind of preparation method of tread mix, comprises the steps:
(1) unproductive one section of mixing step: will along 1 by proportioning, 4-polyisoprene rubber, styrene-butadiene copolymer synthetic rubber, silane coupling agent, white carbon black, White carbon black dispersant, aromatic hydrocarbon oil carry out 1 ~ 3min unproductive one section mixing, until sizing material temperature reaches 160 DEG C, namely complete;
(2) unproductive two-stage mixing step: add by proportioning the unproductive two-stage mixing that carbon black, anti-aging agent and stearic acid carry out 1 ~ 3 in one section of mixture after the cooling period;
(3) productivity mixing step: the rubber that step (2) obtains added the oil-filled and accelerator N-tertiary butyl-2-[4-morpholinodithio time yellow acid amides of zinc oxide, SULPHUR POWDER by proportioning and carry out the mixing of 1 ~ 3min, dump temperature is no more than 115 DEG C;
Wherein, described preparation method is also included in step (1) and adds accelerant N by proportioning, N '-diphenylguanidine.
Use accelerant N of the present invention, the preparation method of the addition sequence of N '-diphenylguanidine, be more conducive to the tan δ numerical value of raising 0 DEG C, mean that the wet and slippery performance of finished product tire will promote to some extent; Be conducive to the tan δ numerical value of reduction by 60 DEG C, mean that the rolling resistance of finished product tire will decrease; And each side such as tensile strength, tear strength physicals all improves.
The present invention also provides a kind of tyre surface, is made by above-mentioned tread mix.
Preferably, above-mentioned tyre surface is semi-steel radial tire tyre surface.
The present invention also provides a kind of tire, is made up of above-mentioned tyre surface.
The present invention also provides above-mentioned tread mix, above-mentioned tyre surface, or above-mentioned tire is in the application of tire art.
The present invention also provides above-mentioned tread mix, above-mentioned tyre surface, or above-mentioned tire is in the application in semi-steel radial tire field.
Embodiment
The present invention relates to the tire tread compound of a kind of high wet-sliding resistant and low-rolling-resistance, to calculate based on 100 weight part tread-rubbers, comprise following component: 1-60 weight part is along Isosorbide-5-Nitrae-polyisoprene rubber, 1-80 parts by weight of styrene-butadienecopolymer synthetic rubber; 1-10 weight part silane coupling agent.
Wherein, silane coupling agent (R
1o)
3si (R
2)
3sC=OR
3use, be considered to raising sizing material high wet-sliding resistant and low-rolling-resistance performance be important.Be specially, described silane coupling agent structural formula is (R
1o)
3si (R
2)
3sC=OR
3, wherein: R
1, R
2the monovalent hydrocarbon with 1 ~ 5 carbon atom, R
3it is the monovalent hydrocarbon with 5 ~ 10 carbon atoms.Use silane coupling agent (R
1o)
3si (R
2)
3sC=OR
3improve 0 DEG C of tan δ numerical value, reduce by 60 DEG C of tan δ numerical value.And silane connection of the present invention agent has silane-white carbon black reaction faster, with monosulfidic bond in molecule, Heat stability is good, hot milling temperature can reach 180 DEG C, does not have incipient scorch;-C=OR3 is wherein a kind of long acyl, can wrap up white carbon black surface, makes white carbon black can not occur to reunite again, and can play plastification.
As one embodiment of the present of invention, in styrene-butadiene copolymer synthetic rubber, styrene content is within 0 ~ 50%, and butadiene content is within 0 ~ 80%, and Tg point is between-10 DEG C ~-90 DEG C.
The invention still further relates to a kind of preparation method of tread mix, the mixing rubber compounding art method known to the skilled that adopts completes.Such as under normal conditions, each component is carried out mixing at least two stages, i.e. at least one unproductive mix stage, subsequently a productivity mix stage.
Preferably, as one embodiment of the present of invention, by component along 1,4-polyisoprene rubber, styrene-butadiene copolymer synthetic rubber, silane coupling agent, accelerant N, N '-diphenylguanidine, white carbon black, White carbon black dispersant, aromatic hydrocarbon oil, carbon black, anti-aging agent and stearic acid carry out unproductive mixing, and by component zinc oxide, SULPHUR POWDER is oil-filled and accelerator N-tertiary butyl-2-[4-morpholinodithio time yellow acid amides productivity is mixing.Wherein, accelerant N, N '-diphenylguanidine adds at unproductive mixing section, and it is important for being considered to the tensile strength, tear strength etc. of raising sizing material.
As one embodiment of the present of invention, described carbon black comprises all types carbon black, and described white carbon black comprises different specific surface area white carbon black, can be direct or indirect be combined with rubber molecule generation physics and chemistry.Preferably, carbon black iodine absorption number in more than 120g/kg, DBP absorption value at 60-120cm
3/ 100g, N2 adsorption specific surface area is at 119m
2/ more than g; White carbon black N2 adsorption specific surface area is at 85-200g/m
2above.
As one embodiment of the present of invention, described aromatic hydrocarbon oil is environment-friendly aromatic oil, kinematic viscosity (100 DEG C)/mm2s-1:10 ~ 30, flash-point/DEG C: 271, pour point/DEG C: 33, refractive index (20 DEG C): 1 ~ 2, polycyclic aromatic hydrocarbons massfraction: 0 ~ 1, carbon atom proportion/%:CA:0 ~ 50%, CN:0 ~ 50%, CP:0 ~ 50%.
Tread mix of the present invention and preparation method thereof is further illustrated below by specific embodiment.
Embodiment one
In BRBanbury Banbury mixer, preparation is as the tread mix of defined composition in table 1, the reinforced mix stage that preparation process takes three to separate, i.e. two unproductive mix stage and a productivity mix stage.Two non-productive stage carry out the mixing of about 1-3min respectively; The productivity stage carries out the mixing of about 1 ~ 3min, and rubber temperature is no more than 115 DEG C.
Detailed process is as follows:
(1) will along 1 by proportioning, 4-polyisoprene rubber, styrene-butadiene copolymer synthetic rubber, silane coupling agent, white carbon black, White carbon black dispersant, aromatic hydrocarbon oil carry out 1 ~ 3min unproductive one section mixing, until sizing material temperature reaches 160 DEG C, namely complete;
After (2) one sections of binder removal coolings, add by proportioning the unproductive two-stage mixing that carbon black, anti-aging agent and stearic acid carry out 1 ~ 3;
After the cooling of (3) two sections of binder removals, the rubber that step (2) obtains added the oil-filled and accelerator N-tertiary butyl-2-[4-morpholinodithio time yellow acid amides of zinc oxide, SULPHUR POWDER by proportioning and carry out the mixing of 1 ~ 3min, dump temperature is no more than 115 DEG C;
Wherein, described preparation method is also included in step (1) and adds accelerant N by proportioning, N '-diphenylguanidine.
All samples is at about 151 DEG C of sulfuration 30min.
This tread mix is referred to as sample 1, sample 2, sample 3, sample 4 here.
Sample 1 and sample 2 are here by as contrast sample, and the silane coupling agent namely in sample 1 and sample 2 is Si75, and the silane coupling agent in sample 3 and sample 4 is (R
1o)
3si (R
2)
3sC=OR
3.And the difference of sample 1 and sample 2 is in technique, accelerant N in sample 1, N '-diphenylguanidine adds in the production phase, accelerant N in sample 2, N '-diphenylguanidine adds in non-productive stage, accelerant N in sample 3, and N '-diphenylguanidine adds in the production phase, accelerant N in sample 4, N '-diphenylguanidine adds in non-productive stage.
Each raw material addition (unit: phr) in table 1 embodiment one
Table 2 gives the physical and mechanical property of cured samples 1-4.
Table 3 gives the dynamic properties of cured samples 1-4.
The physical and mechanical property of table 2 sample 1-4
The dynamic properties of table 3 sample 1-4
The test result of embodiment one is as shown in table 2 and table 3, and result shows:
Sample 3,4, compared with sample 1,2, uses silane coupling agent (R
1o)
3si (R
2)
3sC=OR
3improve 0 DEG C of tan δ numerical value, reduce by 60 DEG C of tan δ numerical value.Detect tan δ value, 0 DEG C of tan δ test value is higher, means that wet-sliding resistant performance is higher; Detect tan δ value, 60 DEG C of tan δ test values are lower, mean that rolling resistance performance is better.
Sample 4 is compared with sample 3, and no matter sample 2, compared with sample 1, is silane coupling agent Si75 sizing material or silane coupling agent (R
1o)
3si (R
2)
3sC=OR
3sizing material, accelerant N, N '-diphenylguanidine be the technique added in non-productive stage each side physicals such as tensile strength, tear strength all comparatively traditional technology to get well.
The product using silane coupling agent of the present invention and preparation method of the present invention to obtain has the over-all properties of high physicals, high wet-sliding resistant and low-rolling-resistance.
Table 4 is the hot-work stability of sample 2 and sample 4.
Carry out observing its sulfation with rheometer, temperature of reaction is from 150 DEG C, 160 DEG C, 170 DEG C, 180 DEG C changes, and the reaction times is 30min.
Table 4 thermal stability test result
As shown in Table 4, sulphur sample 2 just starts from 150 DEG C, and before 170 DEG C, all there is not sulphur in sample 4.Show under silane coupling agent of the present invention and preparation method of the present invention, the security of processing can be ensured.
The present invention can summarize with other the specific form without prejudice to spirit of the present invention or principal character.Therefore, no matter from which point, above-mentioned embodiment of the present invention all can only be thought explanation of the present invention and can not limit the present invention, claims indicate scope of the present invention, and scope of the present invention is not pointed out in above-mentioned explanation, therefore, any change in the implication suitable with claims of the present invention and scope, all should think to be included in the scope of claims of the present invention.
Claims (9)
1. a tire tread compound for high wet-sliding resistant and low-rolling-resistance, is characterized in that, comprises following component:
(1) rubber major ingredient 100 weight part: comprise 1-60 weight part along Isosorbide-5-Nitrae-polyisoprene rubber, 1-80 parts by weight of styrene-butadienecopolymer synthetic rubber;
(2) Synergist S-421 95: in the rubber major ingredient of 100 weight parts, described Synergist S-421 95 comprises 1-10 weight part silane coupling agent.
2. tread mix according to claim 1, is characterized in that, described silane coupling agent structural formula is (R
1o)
3si (R
2)
3sC=OR
3, wherein: R
1, R
2the monovalent hydrocarbon with 1 ~ 5 carbon atom, R
3it is the monovalent hydrocarbon with 5 ~ 10 carbon atoms.
3. tread mix according to claim 2, it is characterized in that, in 100 parts by weight of rubber major ingredients, the Synergist S-421 95 of this sizing material also comprises carbon black 9 weight part, white carbon black 80 weight part, White carbon black dispersant 3.5 weight part, anti-aging agent 4 weight part, stearic acid 2 weight part, zinc oxide 3.5 weight part, oil-filled 1.6 weight parts of SULPHUR POWDER, aromatic hydrocarbon oil 8 weight part and promotor 3.7 weight part.
4. tread mix according to claim 3, is characterized in that, comprises following ingredients weight parts: 45 weight parts are along Isosorbide-5-Nitrae-polyisoprene rubber, 75.7 parts by weight of styrene-butadienecopolymer synthetic rubber, 6.4 weight part silane coupling agents.
5. the tread mix according to any one of claim 1-4, is characterized in that, described promotor comprises accelerant N, N '-diphenylguanidine 1.8 weight part, accelerator N-tertiary butyl-2-[4-morpholinodithio time yellow acid amides 1.9 weight part.
6. a preparation method for tread mix according to claim 5, comprises the steps:
(1) unproductive one section of mixing step: will along 1 by proportioning, 4-polyisoprene rubber, styrene-butadiene copolymer synthetic rubber, silane coupling agent, white carbon black, White carbon black dispersant, aromatic hydrocarbon oil carry out 1 ~ 3min unproductive one section mixing, until sizing material temperature reaches 160 DEG C, namely complete;
(2) unproductive two-stage mixing step: add by proportioning the unproductive two-stage mixing that carbon black, anti-aging agent and stearic acid carry out 1 ~ 3 in one section of mixture after the cooling period;
(3) productivity mixing step: the rubber that step (2) obtains added the oil-filled and accelerator N-tertiary butyl-2-[4-morpholinodithio time yellow acid amides of zinc oxide, SULPHUR POWDER by proportioning and carry out the mixing of 1 ~ 3min, dump temperature is no more than 115 DEG C;
It is characterized in that,
Described preparation method is also included in step (1) and adds accelerant N by proportioning, N '-diphenylguanidine.
7. a tyre surface, is prepared by tread mix according to claim 5.
8. a tire, is prepared by tyre surface described in claim 7.
9. tyre surface described in the tread mix described in any one of claim 1-4, claim 7, or tire described in claim 8 is in the application of tire art.
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|---|---|---|---|
| CN201510906315.7A CN105315525A (en) | 2015-12-09 | 2015-12-09 | Tire tread rubber material with high wet skid resistance and low rolling resistance as well as preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510906315.7A CN105315525A (en) | 2015-12-09 | 2015-12-09 | Tire tread rubber material with high wet skid resistance and low rolling resistance as well as preparation method and application thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105837883A (en) * | 2016-05-19 | 2016-08-10 | 张家港大塚化学有限公司 | Rubber composition and tire assembly |
| CN106366386A (en) * | 2016-08-30 | 2017-02-01 | 安徽佳通乘用子午线轮胎有限公司 | Ultralow-rolling-resistance high-slipping-resisting tread rubber composition for passenger radial tire |
| CN106700164A (en) * | 2016-12-28 | 2017-05-24 | 北京彤程创展科技有限公司 | Wet-skid resistant low-rolling-resistance rubber composition and tire thread |
| CN113603941A (en) * | 2021-08-02 | 2021-11-05 | 中策橡胶(建德)有限公司 | Rubber composite material containing white carbon black and mixing method for reducing agglomeration of white carbon black in rubber matrix |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105837883A (en) * | 2016-05-19 | 2016-08-10 | 张家港大塚化学有限公司 | Rubber composition and tire assembly |
| CN106366386A (en) * | 2016-08-30 | 2017-02-01 | 安徽佳通乘用子午线轮胎有限公司 | Ultralow-rolling-resistance high-slipping-resisting tread rubber composition for passenger radial tire |
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| CN113603941A (en) * | 2021-08-02 | 2021-11-05 | 中策橡胶(建德)有限公司 | Rubber composite material containing white carbon black and mixing method for reducing agglomeration of white carbon black in rubber matrix |
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Application publication date: 20160210 |