What indicators should be paid attention to when titanium dioxide is used in coating industry?

The whiteness of titanium dioxide (brightness, blue light whiteness, whiteness index and visual whiteness), the decoloring power of blue pulp, Reynolds index of black pulp, hue and B value are all the results of titanium dioxide's action on light. It determines the ability of titanium dioxide to appear white in the coating.

Fineness (particle size), dispersibility, particle size distribution and PH value determine the hiding power and decoloring power of titanium dioxide, and also have a certain influence on oil absorption and weather resistance.

Resistivity, we can see the impurity content of water-soluble salts in titanium dioxide.

The coating agent determines the oleophilic or hydrophilic properties of titanium dioxide, which makes it easier to disperse in oily coatings or waterborne coatings. Affect oil absorption.

The conversion rate of rutile determines its weatherability.

The content of residue and coarse particles in 600 mesh screen affects gloss and leveling.

H2O molecular content of volatiles at 65438 005℃.

The content of TiO2 can also be considered. Generally, anatase is uncoated and has a high content. After rutile coating, TiO2 _ 2 decreased, but the classification of R 1 type, R2 type and R3 type in the national standard mainly depends on this index.

To put it bluntly, if you want to do a good job, you will pay more attention to it.