1,3-Diphenylguanidine DPG

It is a white powder, slightly soluble in water, soluble in ethanol, chloroform, hot benzene, hot toluene, and easily soluble in dilute inorganic acids.

Mainly used as a medium-speed accelerator for natural rubber and synthetic rubber. It is commonly used as an active agent for thiazole, thiuram and hypoiodoyl accelerators. When used together with accelerators DM and TMTD, it can be used for continuous vulcanization. When the second accelerator of thiazole accelerator is used, the aging resistance of the vulcanized rubber is reduced, and an appropriate antioxidant must be used.

In neoprene, this product acts as a plasticizer and peptizer. This product is not suitable for white or light-colored products and rubber products in contact with food. Mainly used in the manufacture of tires, rubber sheets, shoe soles, industrial products, hard rubber and thick-walled products. As the second accelerator, the dosage is 1-2 parts. When used as the second accelerator of thiazole accelerator, the general dosage is 0.1-0.5 parts. Chromium diphenylguanidine, a derivative of diphenylguanidine, is an efficient rust inhibitor.

DPG is also used as a plastic cross-linking agent, temperature indicator material, ore flotation additive, coating additive, polishing material additive, metal analysis reagent and building materials additive.