Racing car tire tread rubber composition with high road holding and high control performance

Abstract

The invention relates to a racing car tire tread rubber composition with high road holding and high control performance. The racing car tire tread rubber composition is prepared from the following components in parts by weight: 27.5-68.75 parts of high styrene emulsion polybutadiene rubber, 27.5-68.75 parts of high styrene soluble polystyrene butadiene rubber, 20-40 parts of styrene-soluble styrene-butadiene rubber, 60-90 parts of super-abrasive-resisting carbon black, 30-50 parts of white carbon black, 2-8 parts of a silane coupling agent, 0-30 parts of aromatic oil, 2-4 parts of zinc oxide,1-3 parts of stearic acid, 2-6 parts of an antioxidant, 5-10 parts of road holding resin, 5-20 parts of liquid styrene-butadiene rubber, 1-2 parts of sulfur and 1.6-4.0 parts of an accelerator. The racing car tire tread rubber composition is excellent in wet road holding performance and dry road holding performance, the control performance is further excellent, the racing car tire tread rubber composition is superior than all of tread rubber compositions in the prior art, and the problem of insufficient road holding of tires during high-speed turning or lane-changing is solved.

Description

technical field [0001] The invention relates to a tire tread rubber composition, in particular to a racing tire tread rubber composition, and belongs to the technical field of automobile tire materials. Background technique [0002] The origin of motorsports has a history of more than 100 years. It is one of the most popular sports in the world. Every year, a large number of professional events are held around the world to gradually promote this fast and passionate sport to the public. In addition to professional competitions, the demand for racing tires in the modified car market and amateur motorsports is also growing. According to the research results of the US market, racing tires that can be legally used on the road have the highest added value, and the top-ranked tires in the world Manufacturers have also launched corresponding products to compete for the racing tire market. Although China's racing car market started relatively late, it is developing rapidly. At prese...

AI Technical Summary

Problems solved by technology

[0005] The patent application with the application number 201611038102.8 discloses a UHPT tread rubber that can be used for drifting competitions. It uses modified solution polystyrene butadiene, high-dispersion silica with high specific surface area and functional resin, and at the same time reasonably adjusts the proportion of fillers. And the mixing process of rubber materials, so as to take into account the performance requirements of daily driving and drifting events, but its dry and wet grip performance and handling performance are still not excellent enough to meet the requirements of racing cars

In patent 201611038102.8, in order to ensure the mixing performance of the rubber compound, a large amount of oil is used to improve the processing performance of the rubber compound, but the use of oil has no positive effect on improving the dry and wet grip performance and handling performance of the formula

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