The roles of PTFE micropowder in rubber mainly include: enhancing wear resistance, improving chemical resistance, reducing the friction coefficient, increasing temperature resistance, and optimizing processability, among others.
Enhancing Wear Resistance: PTFE micropowder, with its low friction coefficient and excellent wear resistance, can be blended into rubber as an additive to produce highly wear-resistant rubber products, such as rubber seals and rubber scrapers. Additionally, the incorporation of PTFE micropowder significantly improves the frictional and wear performance of rubber products, thereby extending their service life.
Improving Chemical Resistance: PTFE exhibits exceptional chemical resistance, capable of withstanding erosion from strong acids, strong alkalis, and many organic solvents. By adding an appropriate amount of PTFE micropowder to rubber, the chemical resistance of rubber products can be enhanced, making them suitable for certain specialized working environments.
Reducing the Friction Coefficient: PTFE micropowder can reduce friction between rubber materials, minimizing surface adhesion and frictional losses. Therefore, in applications where reducing friction and wear is crucial, PTFE micropowder can be added to rubber, for instance, in the manufacture of sliding seals and shock-absorbing pads.
Increasing Temperature Resistance: PTFE micropowder possesses outstanding high-temperature performance, capable of enduring elevated temperature environments. When rubber needs to be used in high-temperature conditions, adding PTFE micropowder can enhance the rubber's temperature resistance, thereby increasing its service life and stability.
Optimizing Processability: During the rubber mixing process, PTFE micropowder facilitates the uniform dispersion of rubber and other compounding agents, reducing mixing energy consumption and enhancing production efficiency. Furthermore, the addition of PTFE micropowder contributes to the formation of a smooth texture on the surface of rubber products, improving their aesthetic quality.
The recommended addition ratio of PTFE micropowder in rubber typically ranges from approximately 5% to 20% (by weight). However, please adhere to actual application requirements.