What role does magnesium oxide play in the formulation?

Although magnesium oxide is not the main material in rubber, it plays a very important role. Reburning magnesia

Magnesium oxide can be used as vulcanizing agent, active agent and filler; It can improve the constant elongation stress of vulcanizate and prevent burning. It can increase the alkalinity of the rubber compound, at the same time, it has the acid absorption function, increases the heat resistance and heat conductivity, and is conducive to the improvement of the curing speed.

1、 Magnesium oxide can be used as reinforcing agent of heat resistant rubber in nitrile rubber.

2、 It is used as vulcanizing agent and active agent in neoprene rubber, and also has the function of coke prevention;

3、 It is used as acid absorbent in halogen containing rubber.

4、 It is used as a thickener in composite materials.

5、 The effect of improving the temperature resistance of rubber is obvious.

6、 It can increase the bonding property with the metal skeleton and improve the roll covering property of the rubber mixture;

7、 It can be used as vulcanizing agent in halogenated butyl rubber; Sometimes it is used as filler.

8、 It also has the function of absorbing free halogen decomposed by heat.

9、 Magnesium oxide is often used in alloy adhesive, such as PVC or CM compound, to prevent products from sulfur deficiency.