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Anti-fatigue and deflection-resistant tire sidewall rubber and production process thereof

A flexural and anti-fatigue technology, applied in special tires, tire parts, rolling resistance optimization, etc., can solve problems such as poor lateral flexural flexibility, easy photothermal oxidation, etc., to improve anti-fatigue and flexural performance, reduce Production waste loss and the effect of reducing production and manufacturing costs

Inactive Publication Date: 2010-09-29
八亿橡胶有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a brand-new sidewall formula to solve the quality defects of poor sidewall flexibility and easy photothermal oxidation of finished tires, that is, to provide a tire sidewall rubber with anti-fatigue and flexure resistance and its production process

Method used

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  • Anti-fatigue and deflection-resistant tire sidewall rubber and production process thereof
  • Anti-fatigue and deflection-resistant tire sidewall rubber and production process thereof
  • Anti-fatigue and deflection-resistant tire sidewall rubber and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Embodiment 1 (weight part):

[0067] Raw rubber system: SMR20 natural rubber: 40.0; BR9000 butadiene rubber: 60.0;

[0068] Reclaimed rubber: 5.0; N375 carbon black: 45.0

[0069] Zinc oxide: 3.50; Anti-aging agent: 3.0;

[0070] Aromatic oil: 4.0; Plasticizer A: 1.0;

[0071] Tert-butyl phenolic tackifying resin: 3.0; Sulfur: 1.5;

[0072] Accelerator: 0.80.

Embodiment 2

[0073] Embodiment 2 (weight part):

[0074] Raw rubber system: SMR20 natural rubber: 45.0; BR9000 butadiene rubber: 55.0;

[0075] Reclaimed rubber: 8.0; N375 carbon black: 49.0;

[0076] Zinc oxide: 3.50; Anti-aging agent: 4.0;

[0077] Aromatic oil: 4.0; Plasticizer A: 1.0;

[0078] Tert-butyl phenolic tackifying resin: 3.0; Sulfur: 1.5;

[0079] Accelerator: 0.80.

Embodiment 3

[0080] Embodiment 3 (weight part):

[0081] Raw rubber system: SMR20 natural rubber: 50.0; BR9000 butadiene rubber: 50.0;

[0082] Reclaimed rubber: 10.00; N375 carbon black: 47.0;

[0083] Zinc oxide: 3.50; Anti-aging agent: 5.0;

[0084] Aromatic oil: 4.0; Plasticizer A: 1.0;

[0085] Tert-butyl phenolic tackifying resin: 3.0; Sulfur: 1.5;

[0086] Accelerator: 0.80;

[0087] 1. Road test results:

[0088] 20 10.00R20 BS28 road test tires were produced on the sidewall of the test, and a total of 6 tires were selected for road test. The vehicle was a coal water slurry transport vehicle. The car returns empty, with a self-weight of about 16 tons, and a total weight of 53-54 tons of CWS after loading. The test time was about 4 months, and the total driving was about 30,000 kilometers. No abnormality was found on the sidewall, and no cracks or cracks were found on the sidewall after washing and observation.

[0089] 2. Cost comparison:

[0090] Using the new formula in t...

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Abstract

The invention relates to an anti-fatigue and deflection-resistant tire sidewall rubber and a production process thereof, in particular to an all-steel radial tire sidewall rubber and a production process thereof. The tire sidewall rubber is produced with the following raw materials in parts by weight: 40.0-50.0 of natural rubber of a raw rubber system, 50.0-60.0 of BR9000 butadiene rubber, 5.0-10.0 of reclaimed rubber, 45.0-50.0 of N375 carbon black, 3.50 of zinc oxide, 3.0-6.0 of aging resister, 4.0 of aromatic oil, 1.0 of plasticizer, 3.0 of tert-butyl phenolic tackifying resin, 1.5 of sulfur and 0.80 of promoter. The invention has the advantages of reducing the production cost and the production waste loss, improving the rubber process performance, and enhancing the fatigue resistance and deflection resistance of the side part of the finished tire.

Description

technical field [0001] The invention relates to a production formula and a production process of sidewall rubber of an all-steel radial truck tire, in particular to a sidewall rubber of an anti-fatigue and flexure-resistant tire and a production process thereof. Background technique [0002] At present, most areas in China belong to the continental climate. Considering the complex road conditions in China, the road surface used is mainly poor mixed road surface. Due to the large hysteresis loss caused by flexural deformation, the heat generation in the sidewall is relatively large, and the requirements for the performance of the tire sidewall such as thermal and oxygen aging resistance are very strict. [0003] In addition, the sidewall rubber is also used to protect the steel wire and steel cord inside the tire from being corroded by hot and humid air and cause early damage to the tire. The scheme of using glue together (the development background of Impilelli technology i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/00C08L7/00C08L17/00C08L61/06C08K13/02C08K3/04C08K3/22C08K5/01C08K3/06B60C1/00
CPCY02T10/862
Inventor 刘强李继宗赵建林张哲峰姜春植焦清伟姚明李明珊李建平张超田传虎
Owner 八亿橡胶有限责任公司
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