Silicone rubber, as an excellent elastic material, has a wide range of applications in various industrial fields. And its excellent performance often stems from the precise vulcanization process. Vulcanization refers to the reaction between a vulcanizing agent and the double bonds in silicone rubber, forming a cross-linked structure, thereby improving its heat resistance, aging resistance, and mechanical properties.

The key to the vulcanization process lies in the selection of vulcanizing agents and the control of vulcanization temperature and time. Commonly used vulcanizing agents include organic peroxides, thioamides, sulfurized phenols, etc. The vulcanization reaction is generally carried out at a temperature of 150 ° C to 200 ° C, and the time depends on the specific formula and requirements of the silicone rubber, usually ranging from a few minutes to several hours.

When mixing silicone rubber, in addition to adding vulcanizing agents, it is also necessary to carefully choose other raw materials, such as fillers, plasticizers, etc., to adjust the hardness, elasticity, and wear resistance of silicone rubber. During the mixing process, mechanical shearing and heating can promote the vulcanization reaction, thereby achieving the desired physical properties of the rubber.

The vulcanization process of silicone rubber needs to be strictly controlled, on the one hand to ensure sufficient vulcanization reaction, and on the other hand to avoid product performance degradation caused by excessive vulcanization. Therefore, in production practice, it is necessary to adjust the vulcanization process parameters according to specific situations to ensure a balance between product quality and production efficiency.

General Purpose Fumed Extrusion Silicone Rubber