Tread rubber composition of fuel-efficient type semi-steel radial tire

A radial tire and rubber composition technology, applied in the rubber field, can solve the problems of decline, lack of emphasis on dispersion performance, blank application technology of tread rubber, etc., and achieve the effects of good wear resistance, reduced rolling resistance, and extended service life.

Active Publication Date: 2012-08-15
TRIANGLE TIRE
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] The patent 01815164.7 tire tread composition invented by the French Michelin Company mentioned the rubber composition for tires using 70-100 parts by weight of white carbon black, but this technology did not highlight the dispersion performance after using a certain amount of white carbon black. Ways to improve the problem
[0007] There are technical reports on the application of modified styrene-butadiene rubber in combination with a certain amount of silica in tire treads in the industry, but the application technology of tread rubber in fuel-saving semi-steel radial tires with ultra-high silica filling content still blank

Method used

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Embodiment Construction

[0021] Below in conjunction with embodiment the present invention will be further described:

[0022] The rubber component involved in the present invention includes modified styrene-butadiene rubber, unmodified styrene-butadiene rubber and polybutadiene rubber.

[0023] The modified styrene-butadiene rubber described in the invention has a bound styrene content of 10 to 35% by mass and a solution-polymerized styrene-butadiene rubber SSBR with a vinyl content of 30 to 75% by mass, such as SSBR5025-2, SSBR5525 of German Lanxess Co., Ltd.; HP-755 of Japan JSR Synthetic Rubber Company, etc.

[0024] In the invention, the solution polymerized styrene-butadiene rubber SSBR, in order to ensure a certain processing performance, can be preferably oil-extended SSBR; non-oil-extended SSBR can also be used, and the usage amount of the corresponding rubber processing softener should be properly adjusted when using .

[0025] The type of extender oil for oil-extended SSBR is TDAE (Treate...

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Abstract

The invention relates to a tread rubber composition of a fuel-efficient type semi-steel radial tire. By taking 100 parts by weight of rubber component as reference, the tread rubber composition further contains 90-145 parts by weight of white carbon black, 5-35 parts by weight of carbon black, 12-45 parts by weight of rubber processing softener, 7-25 parts by weight of silane coupling agent, 0-15 parts by weight of anti-aging agent, 0-12 parts by weight of sulfur and 0-9.5 parts by weight of accelerant, wherein the rubber component contains modified styrene-butadiene rubber, non-modified styrene-butadiene rubber and polybutadiene rubber; the modified styrene-butadiene rubber comprises solution polystyrene-butadiene rubber containing 10-35% by weight of combined styrene and 30-65% by weight of vinyl; the non-modified styrene-butadiene rubber comprises emulsion polystyrene-butadiene rubber containing 15-50% by weight of combined styrene and 10-40% by weight of vinyl; and the content of the polybutadiene rubber is 20-55 parts by weight, wherein the percentage by weight of cis of the cis-butadiene structure needs to be larger than 95%.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to an oil-saving semi-steel radial tire tread rubber composition. Background technique [0002] As we all know, with the rapid development of the automobile industry and highways, the tension of oil resources will continue to intensify, making the task of energy saving and emission reduction more and more important, and prompting the rapid development of new green tires that can reduce rolling resistance and save fuel. [0003] The crown part of the passenger tire accounts for most of the rolling resistance of the whole tire, so the design of the tread rubber formula with low rolling resistance plays a great role in improving the fuel-saving performance of the finished tire. [0004] To reduce the rolling resistance of the tread compound formula, the tread compound formula of modified styrene-butadiene rubber combined with a certain amount of white carbon black is widely used in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L9/00C08K3/36C08K3/04B60C1/00
Inventor 丁玉华单国玲顾高照焦文秀孙希华张海盟丁全勇
Owner TRIANGLE TIRE
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