White corundum’s performance in improving the wear resistance of fluorocarbon powder
The role of white corundum in improving the wear resistance of fluorocarbon powder is mainly reflected in the following aspects:
1. Significantly improve surface hardness and compressive strength
The Mohs hardness of white corundum is as high as 9. After its micro-powder particles are integrated into the fluorocarbon powder coating as hard fillers, a high-strength support structure can be formed on the surface of the material. This characteristic enables the coating to effectively resist mechanical damage such as friction and scratching, and is particularly suitable for high-frequency friction scenarios.
The Mohs hardness of white corundum is as high as 9. After its micro-powder particles are integrated into the fluorocarbon powder coating as hard fillers, a high-strength support structure can be formed on the surface of the material. This characteristic enables the coating to effectively resist mechanical damage such as friction and scratching, and is particularly suitable for high-frequency friction scenarios.
2. Optimize particle structure to enhance wear resistance
White corundum has a regular and compact crystal structure. After being evenly distributed in fluorocarbon powder, it can improve wear resistance through the following mechanisms:
Forming a microscopic convex structure to reduce the effective friction area of the contact surface
Bearing the main friction stress through high-hardness particles
Slowing down the crack propagation rate during wear
White corundum has a regular and compact crystal structure. After being evenly distributed in fluorocarbon powder, it can improve wear resistance through the following mechanisms:
Forming a microscopic convex structure to reduce the effective friction area of the contact surface
Bearing the main friction stress through high-hardness particles
Slowing down the crack propagation rate during wear
3. Enhancing chemical stability and extending service life
The excellent acid and alkali corrosion resistance of white corundum forms a synergistic effect with the weather resistance of fluorocarbon powder itself. This combination can not only resist ultraviolet rays and rain erosion, but also prevent the destruction of the coating structure caused by the penetration of chemical media, thereby maintaining long-term stable wear resistance.
The excellent acid and alkali corrosion resistance of white corundum forms a synergistic effect with the weather resistance of fluorocarbon powder itself. This combination can not only resist ultraviolet rays and rain erosion, but also prevent the destruction of the coating structure caused by the penetration of chemical media, thereby maintaining long-term stable wear resistance.
4. Stability advantages in high temperature environments
Within the common operating temperature range of 80-200℃, white corundum can still maintain stable physical properties. This feature effectively avoids problems such as softening of the coating and increased wear caused by high temperature, and is particularly suitable for application scenarios with large temperature fluctuations such as outdoor or industrial equipment.
Within the common operating temperature range of 80-200℃, white corundum can still maintain stable physical properties. This feature effectively avoids problems such as softening of the coating and increased wear caused by high temperature, and is particularly suitable for application scenarios with large temperature fluctuations such as outdoor or industrial equipment.
5. Improvement of coating microstructure characteristics
Surface roughness optimization: The microtexture formed by micropowder particles improves the anti-slip performance while maintaining the surface flatness.
Stress dispersion effect: Uniformly distributed hard particles can disperse local stress concentration and prevent brittle peeling of the coating.
Self-lubricating properties: Low friction coefficient characteristics (0.1-0.2) can reduce energy loss during dynamic friction and reduce material performance degradation caused by heat accumulation.
Surface roughness optimization: The microtexture formed by micropowder particles improves the anti-slip performance while maintaining the surface flatness.
Stress dispersion effect: Uniformly distributed hard particles can disperse local stress concentration and prevent brittle peeling of the coating.
Self-lubricating properties: Low friction coefficient characteristics (0.1-0.2) can reduce energy loss during dynamic friction and reduce material performance degradation caused by heat accumulation.
These characteristics make fluorocarbon powder coatings containing white corundum significantly superior to traditional formulas in terms of mechanical durability, environmental adaptability and service life, and are particularly suitable for areas with high requirements for wear resistance such as building curtain walls, industrial corrosion protection, and outdoor equipment.