A rubber vulcanizing agent is a substance that causes cross-linking reactions in rubber molecules, forming a three-dimensional network structure from linear molecules, reducing plasticity and increasing elasticity. Except for some thermoplastic rubbers that do not require vulcanization, natural rubber and various synthetic rubbers require the addition of vulcanizing agents for vulcanization. Only after vulcanization does rubber acquire its valuable usability, and its mechanical properties are significantly improved.
Vulcanizing agents are suitable for all types of natural and synthetic rubbers. Different types of vulcanizing agents can be used in combination as needed. Commonly used vulcanizing agents include elemental sulfur, selenium, tellurium, sulfur-containing compounds, peroxides, quinone compounds, amine compounds, resin compounds, metal oxides, and isocyanates. Among these, elemental sulfur and sulfur-containing compounds are the most widely used vulcanizing agents.
When using rubber vulcanizing agents, care should be taken to avoid contact with eyes, rust, heavy metal compounds, metal salts, desiccants, etc. Sealing and fire prevention measures should also be taken.
