Usage: The activity of magnesium oxide is an important index to measure the rubber industry with magnesium oxide, active magnesium oxide seat is one of the main inorganic active agents, in the binder dosage is small can greatly improve the degree of vulcanization. Magnesium oxide and zinc oxide mainly play a role in the fluidity and antioxidant capacity of rubber, increase the tensile strength of rubber and impact resistance, magnesium oxide is an important compound of halogenated rubber. Magnesium oxide and zinc oxide are used as vulcanizing agents in neoprene rubber to reduce oxidation activity and slow down the vulcanization rate, which can prevent early crosslinking; At the same time, oxidation does not play the role of acid acceptor, can prevent scorch and cyclization, usually added in the early mixing, the activity of magnesium oxide has a great impact on the performance of CR anti-scorch, the tensile strength of CR is mild, and the hardness of fixed elongation also has an impact.