The improvement of silica on the performance of coatings is mainly reflected in the following aspects:

5. Matting effect

The refractive index of amorphous silica is 1.457, which is similar to the refractive index of conventional resin coatings, so it is the first choice for high-end coating matting agents. Adding silica to varnish can produce matte and matte effects, and enhance the decorativeness of the coating. This matting effect makes the coating softer and more natural, and is suitable for high-end decoration and art painting.

6. Improve wear resistance
In functional coatings, such as anti-corrosion coatings, wear-resistant coatings, etc., silica can significantly improve the wear resistance of the coating. Its high hardness and wear resistance enable the coating to maintain good integrity when subjected to friction and wear, extending the service life of the coating.

7. Environmental performance
As an inorganic silicon compound, silica is non-toxic, odorless, non-combustible, and has good environmental performance. The use of silica in coatings helps to reduce the emission of harmful substances and meets modern environmental protection requirements. This makes silica have a wide range of application prospects in environmentally friendly coatings and green building materials.

In summary, silica improves the performance of coatings in many aspects, including enhancing hiding power and adhesion, improving weather resistance, thixotropic properties, improving leveling, matting effect, improving wear resistance and environmental performance. The improvement of these properties makes the application of coatings more extensive and in-depth in various fields.

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