English name: anti-scorching agent; vulcanization retarder
Generally include nitroso compounds (such as N-nitroso diphenylamine, etc.), organic acids (such as benzoic acid, phthalic anhydride, etc.) and thioimidides (such as N-cyclohexyl thiophthalamide) Diformimide) and so on. Commonly used are oxalic acid, succinic acid, lactic acid, phthalic anhydride, salicylic acid, benzoic acid, oleic acid, etc., of which phthalic anhydride and salicylic acid are more commonly used. However, these substances affect the physical and mechanical properties of the finished product and should not be used more often. The new anti-scorch agent CTP (N-cyclohexylthiophthalamide) that has appeared in recent years has excellent anti-scorch effect, and the scorch time can be effectively controlled through the usual holding amount.