The mechanism of enhancing wear resistance of white corundum in coatings is mainly reflected in the following aspects:

I. High hardness characteristics

White corundum has a very high hardness (Mohs hardness 9.0), second only to diamond. This high hardness makes it possible to significantly improve the wear resistance of coatings, especially in situations where frequent friction and mechanical wear are required, such as industrial floors and automobile coatings.

II. Forming a hard protective layer

After the white corundum particles are evenly distributed in the coating, a hard protective layer can be formed on the surface of the coating. This protective layer can effectively resist the friction and wear of external objects and reduce the scratches and damage of the coating.

III. Improving the coating microstructure

The fine size and high uniformity of white corundum particles enable it to fill tiny pits in the coating and improve the surface smoothness and microstructure of the coating. This optimization of microstructure is helpful to improve the overall wear resistance of the coating.

IV. Enhance adhesion

White corundum particles can enhance the adhesion between the coating and the substrate, making the coating stronger. The improvement of adhesion is helpful to reduce the peeling and aging of the coating, thus indirectly enhancing the wear resistance of the coating.

V. Reducing coating porosity

Through nano-modification technology, white corundum micro-powder can fill the micropores in the coating and reduce the porosity of the coating. The coating with low porosity can better resist external wear and chemical erosion, and further improve the wear resistance.

VI. Composite Modification and Synergy

White corundum can also be used in combination with other materials (such as tungsten carbide and titanium dioxide) to form a composite coating. This composite coating not only improves the hardness and wear resistance of the coating, but also enhances the toughness of the coating.

VII. Performance in practical application

In practical application, white corundum reinforced wear-resistant coatings show significant performance advantages. For example, in industrial floor coatings, after adding white corundum, the wear resistance of the coating is 20-50 times higher than that of ordinary coatings. In automobile coatings, white corundum can significantly improve the wear resistance and weather resistance of automobile body coatings.

To sum up, white corundum has significantly improved its wear resistance in coatings through its high hardness, uniform distribution, enhanced adhesion and reduced porosity, and is widely used in industrial floors, automotive coatings, chemical equipment protection and other fields.