The addition of carbon black to rubber mainly plays a role in increasing the wear resistance of rubber. Carbon black is one of the rubber reinforcing agents, and the reinforcement of rubber refers to the function of obviously improving the tensile strength, tear strength and wear resistance of rubber. For non-self-reinforced synthetic rubber, if no reinforcing agent is added, it has no use value. Adding reinforcing agents such as carbon black can improve the strength of these rubbers by several times to ten times.