The purpose of the precipitation method of carbon black for off-road tire tread is to reduce its heat generation, improve its heat resistance and its ability to resist chipping. According to reports, the appearance quality and abrasion performance of poor tire road conditions have been improved when large-scale tire tread rubber is mixed with precipitation silica. The combination of precipitation method silica and difunctional silane such as TESPT tetrasulfide can improve the abrasion performance of engineering tire tread. Adjusting the amount of vulcanizing agent can successfully optimize the physical and mechanical properties of off-road tire treads containing precipitation method silica.

The research results show that for off-road tire treads with a natural rubber matrix, the silane activation effect of precipitation method silica is beneficial to improve the modulus and wear performance. Laboratory studies have shown that the use of styrene-butadiene rubber partially replaces natural rubber, the precipitation method white carbon black partially replaces carbon black, and a semi-effective vulcanization system is used to improve the performance of natural rubber treads for off-road tires; Part precipitation white carbon black, its tear strength and anti-collapse property are significantly improved. Comparing the tread of off-road tires containing precipitation method silica with pure carbon black-filled tread, the former's cut growth resistance and tear strength are greatly improved compared with the latter. The tire treads of all natural rubber construction machinery tires that use high-dispersion precipitation method white carbon black can obtain the effects of low heat generation, good tear resistance and fatigue resistance of the block.