The surface of silica is smooth and has few reaction points. The gel produced by reaction with rubber is small, the binding force is weak, and the friction is small, which can reduce the rolling resistance of automobile tires. At the same time, rubber can maintain good elasticity and is easy to adapt to various kinds. Different road conditions, production of dissolved rubber between the road and the road surface to improve the grip of the car tire tread. The white carbon black itself has superior adhesion, tear resistance and heat resistance. Substituting part of carbon black can improve the tear strength of the tire tread compound, improve the adsorption between the rubber compound and the skeleton material, and reduce Car tires generate heat during driving, reducing the occurrence of collapse and falling off; adding appropriate amount of silica and silane coupling agent under the production system of “natural rubber + synthetic rubber + reclaimed rubber + carbon black” It can further improve the wear resistance and elasticity of the tire tread rubber.

However, due to the excessive use of white carbon black, the permanent deformation of the tire tread rubber of the automobile tire is increased, and the wear resistance is lowered. Therefore, when replacing some carbon black with white carbon black, it is necessary to consider the substitution ratio and add an appropriate amount of silane coupling. Agent. Although the addition of white carbon black in the production mode of “natural rubber + synthetic rubber + reclaimed rubber + carbon black” will reduce the wear resistance of automobile tires, if used properly, it will effectively improve the overall performance of automobile tires and improve automotive rubber. Tire life. "Natural rubber + synthetic rubber + reclaimed rubber + carbon black + white carbon black (a small amount)" is a good way to produce rubber car tires.