In natural rubber, the combination with sulfur can prevent vulcanization return, improve heat resistance, reduce heat generation, aging resistance, improve the adhesive force of rubber and cord and the modulus of vulcanized rubber. It can be used for shoulder rubber, buffer layer and other rubber of truck tires, which can solve the problem of shoulder clearance of inclined truck tires, and can also be used for large thick products of natural rubber and various rubber miscellaneous products.
For example, when used in combination with sulfur, the accelerator MPMCZ, or TMTD as an initiator, sulfide diene rubber (natural rubber, styrene-butadiene rubber, butadiene rubber, synthetic isoprene rubber) has the characteristics of prolonged char time, reduced caloric value, high tensile strength, and excellent resistance to regression. At the same time, it can also increase the H extraction, which is suitable for the high temperature vulcanization of rubber (183), and the dosage is 2-3. As a vulcanization accelerator of neoprene rubber, it can obviously improve the anti-burning property of the compound, and is suitable for the processing of neoprene rubber in the southern high temperature season.