Rubber curing agent is essential additives; currently the largest amount of curing agent is sulfur.
Sulfur used in rubber curing agents is mainly sulfur powder, insoluble sulfur, colloidal sulfur, precipitated sulfur, etc. As the insoluble sulfur which not only has the chemical inert, also has physical inertia, the time used for rubber vulcanization less prone to migrate, make vulcanized rubber testifier, not blooming, and can reduce the scorch time and extended storage compound, is considered Best of sulfur vulcanizing agent.
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