50% of industrially produced Zinc Oxide goes to the rubber industry. Zinc oxide and stearic acid are important reactants for rubber vulcanization and are one of the raw materials for rubber manufacturing. The combination of zinc oxide and stearic acid strengthens the hardening of the rubber. Zinc oxide is also an important additive for automobile tires. In addition to vulcanization, zinc oxide can greatly improve the thermal conductivity of rubber, thereby helping the heat dissipation of tires and ensuring driving safety. The zinc oxide additive also prevents mold organisms or UV rays from attacking the rubber.
⑴ The role of zinc oxide in the rubber tire industry (high-grade black and dark rubber tires, radial tires): improve the thermal conductivity, wear resistance, tear resistance, tensile strength and other indicators of the product, and save the amount of zinc oxide About 30%.
⑵ The role of zinc oxide in rubber products:
① Activate Zinc Oxide is mainly used as a reinforcing agent for rubber, so that the rubber has good corrosion resistance, tear resistance, elasticity and elongation.
② The accelerator used in the rubber vulcanization process is a multifunctional rubber compounding agent, mainly used as a vulcanization active agent and reinforcing agent for natural rubber, synthetic rubber, and latex.
③ When used as a vulcanization activator, it is evenly distributed in the rubber material, has a large contact area with hydrogen sulfide, and has a greater opportunity for interface reaction. In addition, this active zinc oxide product has the catalytic effect of active substances to convert zinc oxide The conversion rate of zinc sulfide is high.
④ As a vulcanization oxidant, its function is to increase the activity of Accelerator, reduce the amount of accelerator, and shorten the vulcanization cycle.
⑤ It can speed up the vulcanization speed, improve the thermal conductivity of the vulcanized rubber, and make the vulcanization more thorough.
⑥ In the rubber industry, especially in the production of transparent rubber products, activated zinc oxide is an excellent vulcanization activator.