What Is Rubber Accelerator ? Any Application?

- Jan 31, 2019-

The rubber accelerator refers to a rubber vulcanization accelerator. The vulcanization of rubber is mainly carried out using sulfur, but the reaction of sulfur with rubber is very slow, so vulcanization accelerators have emerged. The addition of the accelerator to the rubber compound can promote the activation of the vulcanizing agent, thereby accelerating the crosslinking reaction between the vulcanizing agent and the rubber molecule, thereby achieving the effects of shortening the vulcanization time and lowering the vulcanization temperature. The main use of vulcanization accelerators are mainly sulfenamides, thiazoles, thiurams, and some terpenoids, thioureas and dithiocarbamates. Among them, sulfenamides have the best comprehensive performance and are most widely used.


The rubber accelerator is an after-effect accelerator for natural rubber, butadiene rubber, isoprene rubber, styrene-butadiene rubber and reclaimed rubber. It is usually used in the manufacture of cables, tapes, rubber shoes, inner tubes, bright colors, etc., especially for alkalis. Strong carbon black rubber compound. It is safe at operating temperature, strong in scorch resistance, fast in vulcanization speed and high in tensile strength, which can increase the proportion of synthetic rubber used. Low toxicity and high efficiency, it is an ideal substitute for NOBS and has excellent comprehensive performance. It is called standard accelerator. Widely used in the production of radial tires. It can be used in combination with aldehyde amines, anthraquinones, and thiuram accelerators. When used in combination with the scorch retarder PVI, it forms a good vulcanization system. Mainly used in the manufacture of tires, rubber shoes, hoses, tapes and cables.