What are the functions of nano coatings?

The functions of nano coatings include:

1. As the particle size of nano coatings has entered the nanometer level, the increase of active centers on the surface of coating materials can enhance their chemical and photocatalytic reaction capabilities, endowing coatings with self-cleaning ability under the action of ultraviolet light and oxygen.

2. Surface active centers can bind with functional groups of film-forming substances through secondary chemical bonds, greatly increasing the rigidity and strength of the coating, thereby improving its scratch resistance; The surface of nano coatings with high surface energy can be modified to possess both hydrophobic and oleophobic properties. When used for interior and exterior wall coatings, it can significantly improve the stain resistance and weather resistance of the coating.

3. Some nano coatings with a particle size less than 100nm can absorb Y rays and scatter, improving the radiation resistance of the coating. They can also play a role in preventing radon in interior and exterior wall coatings.

4. The application of nano coatings in primers can increase the adhesion between primers and substrates, improve mechanical strength, and enhance the interface bonding between primers and coatings due to the strong force and filling effect of nano pigments and primers; Nano coatings can fill and smooth the surface of topcoats, improve the glossiness of the topcoat, and reduce resistance.

5. Nano silica can improve the scrub resistance of exterior wall coatings; Adding nano titanium dioxide to exterior wall coatings can improve the weather resistance of latex paint to a new level, while greatly enhancing its aging resistance. Nano zinc oxide can shield ultraviolet rays, absorb infrared rays, kill bacteria, and protect exterior wall coatings.