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Method for adding high-sulfur-content rubber compound to improve wear-resisting property of tread rubber

A technology of wear resistance and rubber compounding, which is applied to special tires, tire parts, transportation and packaging, etc., can solve the problems of production technology and its management not in place, difficult to control, etc., to achieve easy industrial production and easy operation , The effect of simple process

Inactive Publication Date: 2013-04-03
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the need to control inventory backlog, reduce mixing energy consumption and other production cost considerations in the production process of the tire factory, as well as the lack of production technology and management, it is difficult to achieve effective control

Method used

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  • Method for adding high-sulfur-content rubber compound to improve wear-resisting property of tread rubber
  • Method for adding high-sulfur-content rubber compound to improve wear-resisting property of tread rubber
  • Method for adding high-sulfur-content rubber compound to improve wear-resisting property of tread rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to Embodiment 3

[0019] The Ruiqi brand engineering tire tread compound Q102-10 sold by Shandong Hengyu Rubber Co., Ltd. was used. Since the specific formula of the factory was kept secret, the test was only carried out on the basis of the original formula. On the basis of the original formula, add 2 additional parts of sulfur to obtain the high-sulfur content rubber compound, and examine its temperature range of 150°C (Example 1), 160°C (Example 2), and 170°C (Example 3) in the controlled debinding temperature range. vulcanization. The comparison chart of the vulcanization curve obtained is shown in the appendix image 3 , the vulcanization parameters are shown in Table 1.

Embodiment 4

[0026] Based on the BACH tread rubber formula provided by Fengshen Tire Co., Ltd. for ASR69, 315 / 80R2.5 medium and long-distance heavy-duty truck tires, the test is carried out. Since the specific formula of the factory is kept secret, only 100 parts of natural rubber and carbon black are known in this formula. 50 parts, 1 part of sulfur, 29 parts of other small materials, the total is 180 parts. Adding 2 additional parts of sulfur to obtain a high-sulfur rubber compound is 100 parts of natural rubber, 50 parts of carbon black, 2 parts of sulfur, and 29 parts of other small materials, with a total of 182 parts.

Embodiment 5

[0028] Taking the tread rubber formula in Example 4 as an example, the amount of added high-sulfur-content mixed rubber is calculated based on the base rubber contained therein, and 100 parts of the newly formed mixed rubber contains high-sulfur-content Mixed rubber base rubber 2 parts, that is, the added high-sulfur content rubber is 2*1.82 parts, and the base rubber is 98*1.80 parts.

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Abstract

A method for adding a high-sulfur-content rubber compound to improve the wear-resisting property of tread rubber relates to the field of car tires or truck tires. The method is characterized in that the added high-sulfur-content rubber compound refers to the high-sulfur-content rubber compound obtained by taking 100 parts of rubber as the reference and additionally adding 1-3 parts of sulfur in the normally-produced tread rubber of a car tire or a truck tire; the high-sulfur-content rubber compound is taken as the raw material and added into the mixing process of the normally-produced tread rubber of the car tire or the truck tire, the adding amount of the added high-sulfur-content rubber compound is calculated according to the base rubber contained in the high-sulfur-content rubber compound, and in the newly formed rubber compound, 100 parts of base rubber contain 1-5 parts of high-sulfur-content rubber compound base rubber; and in the sizing compound mixing process, the high-sulfur-content rubber compound is added for mixing, and the rubber discharging temperature is controlled to be within the range of 150-170 DEG C. The method is wide in application range and suitable for multiple tread formulas of passenger car tires and truck tires, improves the wear-resisting property, has no influence and even certain improvement on the important indicators required by tread sizing compound, and is simple in technology, and easy in operation and industrial production.

Description

technical field [0001] The invention relates to a method of adding a certain amount of mixed rubber with high sulfur content and a certain heat history in the mixing process of tread rubber for car tires or truck tires, so as to improve the wear resistance of the tread rubber. Background technique [0002] At present, most of the means to improve the wear resistance of tread rubber are by changing the formula and adding new materials, etc., but these methods are often difficult to disperse, difficult to amplify laboratory results, long period of industrial production and debugging, and formula changes make the rubber Other problems, such as the decline of key performance indicators such as mechanical properties and heat aging resistance, require a simple, easy and universal method. [0003] The binding glue is a rubber molecule that is tightly adsorbed on the surface of the filler and is difficult to be extracted even with a good solvent at room temperature. It is formed due...

Claims

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Application Information

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IPC IPC(8): C08L21/00C08K3/06C08J3/24B60C1/00
Inventor 王益庆汤书婷张立群
Owner BEIJING UNIV OF CHEM TECH
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