Too much plasticizer or structure control agent is added to the rubber compound, resulting in poor rubber resilience and slow vulcanization speed; too much plasticizer or structure control agent is added to the rubber compound, which has a delayed curing effect on the rubber compound. As a result, the rubber resilience is deteriorated and the vulcanization speed is slow. You can use raw rubber with a narrow molecular weight distribution and a certain volatile content to improve the release of the rubber and reduce the amount of plasticizer. Use alkoxysilane The surface of white carbon black is treated with hydroxy silicone oil for use. The two-step method is used to allow a certain combination of reaction time between white carbon molecules and raw rubber molecules. Health can be taken in the process to reduce the amount of structure control agent and achieve improvement. Purpose of rubber resilience and vulcanization speed.