The main role of talc powder in rubber industry
The main role of talc powder in rubber industry
Talc For Rubber is mainly used as isolating agent, surface treatment agent and filler in rubber industry. As a filler, it is mainly used in acid-resistant, alkali-resistant, heat-resistant and insulating products, which can be directly mixed into rubber without affecting vulcanization. Talc For Rubber is suitable for natural rubber and synthetic rubber. Fine talcum powder is reinforced by EPDM. It can increase the tensile strength, tensile stress and hardness, but has no effect on vulcanization. When adding polyethylene glycol, the amount of vulcanizing agent (peroxide) can be reduced. The dosage can reach more than 100 parts, but the Mooney viscosity does not change much. The dry compound can also improve the roll wrapping property.
The combination of talc for rubber and carbon black can also produce synergistic effect. The use of talc for rubber in carbon black reinforced rubber can improve its heat resistance, reduce permeability and improve weather resistance. The addition of talc powder helps to improve the dispersion of carbon black and shorten the mixing time by 20% without affecting the dynamic and mechanical properties.
Talc For Rubber can also reduce permeability and improve weather resistance. The addition of talc powder helps to improve the volatilization of plasticizer for carbon black, which gives excellent thermal stability and weather resistance, thus prolonging the service life of the products.
