CN102634076A - Shoulder wedge rubber composition for giant engineering radial tyre - Google Patents
Shoulder wedge rubber composition for giant engineering radial tyre Download PDFInfo
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- CN102634076A CN102634076A CN2012101315048A CN201210131504A CN102634076A CN 102634076 A CN102634076 A CN 102634076A CN 2012101315048 A CN2012101315048 A CN 2012101315048A CN 201210131504 A CN201210131504 A CN 201210131504A CN 102634076 A CN102634076 A CN 102634076A
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Abstract
The invention relates to the technical field of rubber, and in particular relates to a shoulder wedge rubber composition for a giant engineering radial tyre. Based on 100 parts of natural rubber, the shoulder wedge rubber composition for the giant engineering radial tyre also comprises 35-60 parts by weight of reinforcing filler, 1-10 parts by weight of anti-recovery agent, 1-8 parts by weight of insoluble sulfur, 0-7 parts by weight of vulcanizing agent and 0.5-12 parts by weight of sulfenamide-type accelerator, wherein the reinforcing filler is carbon black or 10-60 parts by weight the mixture of carbon black and white carbon black. According to the invention, the physical mechanical performance and the anti-sulfur recovery performance are improved greatly, the shoulder wedge rubber composition for the giant engineering radial tyre can be adapted to long-term vulcanization and rigorous using conditions of the giant engineering radial tyre and the performances of the shoulder wedge of the giant engineering radial tyre can be improved.
Description
Technical field
The present invention relates to the rubber technology field, specifically a kind of giant-scale engineering radial-ply tyre is used the shoulder wedge rubber combination.
Background technology
As everyone knows, the shoulder wedge of radial directly contacts with tire base portion rubber and steel wire belt, and be in the tire shoulder position; It is the maximum zone of tire stress; Therefore, higher to performance requriementss such as the tensile property of shoulder wedge, thermotolerance, elasticity, and also the heat of will seeking survival is low.And the giant-scale engineering radial-ply tyre is compared with general radial; It is big also to have tire shoulder position rubber combination thickness; The tyre vulcanization time is long; The shoulder wedge rubber combination of Sheng Regao so giant-scale engineering radial-ply tyre will have excellent physical and mechanical performance when tire used, and also will have excellent reversion resistance.And existing giant-scale engineering radial-ply tyre is relatively poor with shoulder wedge rubber physical mechanical property and anti-recovery performance.
Summary of the invention
The object of the invention is exactly in order to overcome the deficiency of above-mentioned prior art; Provide a kind of giant-scale engineering radial-ply tyre with shoulder wedge rubber compsn; Physical and mechanical properties and anti-recovery performance increase substantially; Long-time sulfuration of giant-scale engineering radial-ply tyre and harsh working conditions can be adapted to, the performance of giant-scale engineering radial-ply tyre shoulder wedge can be improved.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of giant-scale engineering radial-ply tyre is used the shoulder wedge rubber combination, is benchmark with 100 parts by weight of natural rubber, also comprises in weight part
The reinforcing filler of 35-60 weight part,
The anti-recovery agent of 1-10 weight part,
The insoluble sulfur of 1-8 weight part,
The vulcanizing agent of 0-7 weight part,
0.5-12 the sulphenamide promotor of weight part;
Wherein reinforcing filler is the carbon black of carbon black or 10-60 weight part and the mixture of WHITE CARBON BLACK.
The invention has the beneficial effects as follows that physical and mechanical properties and anti-recovery performance increase substantially, can adapt to long-time sulfuration of giant-scale engineering radial-ply tyre and harsh working conditions, can improve the performance of giant-scale engineering radial-ply tyre shoulder wedge.
Embodiment
Below in conjunction with embodiment the present invention is done further description:
1) tree elastomer adopts standard rubbers or smoke sheet rubber.
2) reinforcing filler comprises carbon black and WHITE CARBON BLACK, should select for use the tubing properties that can make rubber combination good, and the good heat resistance of cross-linked rubber, good springiness, carbon black that thermal conductivity is good, and WHITE CARBON BLACK does not have special requirement.
3) characteristic of the present invention is the superperformance that under long-time cure conditions, guarantees sizing material, therefore selects anti-recovery agent for use, and optional usefulness has the auxiliary agent of excellent anti reversion, can use separately, also can be used by several kinds of anti-recovery agents.Wherein the consumption of anti-recovery agent should not be less than 1 weight part, acts on not obviously very little, and consumption is too big, then can exert an influence to vulcanization system, therefore is advisable with the 1-10 weight part.
4) another feature of the present invention is to select suitable vulcanization system for use, and sulphur is selected insoluble sulfur for use, the 1-8 weight part, can with vulcanizing agent and usefulness, the vulcanizing agent consumption is the 0-7 weight part.Sulfenamide type accelerators consumption 0.5-12 weight part, the ratio of sulphur and promotor with the thermotolerance of assurance rubber combination, and guarantee to have enough elasticity about 4:3.Vulcanization system and anti-recovery agent acting in conjunction, thus reach physical and mechanical properties and the anti-recovery performance increases substantially.
Embodiment
The present invention will be described below in conjunction with embodiment, but the present invention is not limited to these embodiment.
(each material content unit is table 1 in this table: the reinforcing filler of 35-60 weight part weight part); The anti-recovery agent of 1-10 weight part; The insoluble sulfur of 1-8 weight part; The vulcanizing agent of 0-7 weight part, the sulphenamide promotor of 0.5-12 weight part, wherein reinforcing filler is the carbon black of carbon black or 10-60 weight part and the mixture of WHITE CARBON BLACK.
(unit of each material content is in the table: weight part)
Remarks: also can increase tackifier, mineral filler and organic filler coupler etc. according to concrete processing and performance requriements.
In Banbury mixer, divide one section or several sections to carry out mixing Synergist S-421 95 and rubber outside sulphur removal+vulcanizing agent, the sulphenamide promotor according to table 1; About mixing 3min; Treat that the sizing material temperature reaches 160 ℃ of left and right sides binder removals; Then sulphur+vulcanizing agent, sulphenamide promotor are joined in the Banbury mixer, about mixing 3min, treat that temperature discharges between arriving 90 ℃-100 ℃.
To resist the evaluation of sulfuration overcure-reversion according to the mixing rubber combination that goes out of the use level of table 1, mainly divide the test of two parts:
Test 1:
With the mixing back of table 1 rubber combination in the rotor vulkameter is arranged, carry out 150 ℃ * 60min test vulcanization curve, calculate with following formula then and carry out the reversion resistance evaluation, test result specifically sees the following form.
The reversion rate=(MH-M60)/(MH-ML) * 100%
Table 2
| Composition no | Reference examples 1 | Reference examples 2 | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| The reversion rate | 42.6% | 40.7% | 36.3% | 1.4% | 3.48% | 17.59% | 12.75% |
Test 2:
Comparative Examples and embodiment rubber combination under 150 ℃ of conditions, are carried out 32min, 60min, 90min, 120min, 180min sulfuration respectively, and the sulfuration sample carries out following test.That A test that continues is carried out according to standard GB/T 531-1999, and the tensile property test is carried out according to standard GB/T 528-1998.
Table 3
The present invention provides a kind of rubber combination that is applicable to giant-scale engineering radial-ply tyre tyre shoulder wedge, can adapt to long-time sulfuration of giant-scale engineering radial-ply tyre and harsh working conditions, can improve the performance of giant-scale engineering radial-ply tyre shoulder wedge.
Claims (1)
1. a giant-scale engineering radial-ply tyre is used the shoulder wedge rubber combination, it is characterized in that: with 100 parts by weight of natural rubber is benchmark, also comprises in weight part
The reinforcing filler of 35-60 weight part,
The anti-recovery agent of 1-10 weight part,
The insoluble sulfur of 1-8 weight part,
The vulcanizing agent of 0-7 weight part,
0.5-12 the sulphenamide promotor of weight part,
Wherein reinforcing filler is the carbon black of carbon black or 10-60 weight part and the mixture of WHITE CARBON BLACK.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101315048A CN102634076A (en) | 2012-05-02 | 2012-05-02 | Shoulder wedge rubber composition for giant engineering radial tyre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101315048A CN102634076A (en) | 2012-05-02 | 2012-05-02 | Shoulder wedge rubber composition for giant engineering radial tyre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102634076A true CN102634076A (en) | 2012-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2012101315048A Pending CN102634076A (en) | 2012-05-02 | 2012-05-02 | Shoulder wedge rubber composition for giant engineering radial tyre |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103467788A (en) * | 2013-08-27 | 2013-12-25 | 山东永泰化工有限公司 | Tire shoulder rubber material for radial tire |
| CN105733088A (en) * | 2014-05-13 | 2016-07-06 | 上海宇明光电材料技术有限公司 | Preparation method of modified plastic for LED tube |
| WO2017192337A1 (en) * | 2016-05-02 | 2017-11-09 | Bridgestone Americas Tire Operations, Llc | Tire with component comprising cured rubber composition having high dielectric constant and related methods |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617896A (en) * | 2012-03-07 | 2012-08-01 | 安徽大瑞橡胶有限公司 | Tire shoulder mat rubber material of tire and mixing method thereof |
-
2012
- 2012-05-02 CN CN2012101315048A patent/CN102634076A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617896A (en) * | 2012-03-07 | 2012-08-01 | 安徽大瑞橡胶有限公司 | Tire shoulder mat rubber material of tire and mixing method thereof |
Non-Patent Citations (2)
| Title |
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| 杨德华等: "全钢载重子午线轮胎胎肩垫胶配方的优化设计", 《轮胎工业》 * |
| 赵建林等: "抗硫化返原剂PK900在全钢载重子午线轮胎胎肩垫胶中的应用", 《轮胎工业》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103467788A (en) * | 2013-08-27 | 2013-12-25 | 山东永泰化工有限公司 | Tire shoulder rubber material for radial tire |
| CN103467788B (en) * | 2013-08-27 | 2015-08-12 | 山东永泰化工有限公司 | Tire shoulder rubber material for radial tire |
| CN105733088A (en) * | 2014-05-13 | 2016-07-06 | 上海宇明光电材料技术有限公司 | Preparation method of modified plastic for LED tube |
| WO2017192337A1 (en) * | 2016-05-02 | 2017-11-09 | Bridgestone Americas Tire Operations, Llc | Tire with component comprising cured rubber composition having high dielectric constant and related methods |
| US10882978B2 (en) | 2016-05-02 | 2021-01-05 | Bridgestone Americas Tire Operations, Llc | Tire with component comprising cured rubber composition having high dielectric constant and related methods |
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Application publication date: 20120815 |