china lithopone 30% pricelist

Although barium sulfate is almost completely inert, zinc sulfide degrades upon exposure to UV light, leading to darkening of the pigment. The severity of this UV reaction is dependent on a combination of two factors; how much zinc sulfide makes up the pigments formulation, and its total accumulated UV exposure. Depending on these factors Lithopone B301, Lithopone B311 powder itself may vary in shade over time, ranging from pure white all the way to grey or even black. To suppress this effect, a dopant might be used, like small amount of cobalt salts, which would be added to the formulation. This process creates cobalt-doped zinc sulfide. The cobalt salts help to stabilize zinc sulfide so it will not have as severe a reaction to UV exposure.

...

Suppliers also offer custom formulations of titanium dioxide tailored to specific applications. Surface treatments can be applied to modify the material's properties, enhancing its dispersibility in plastics or increasing its UV absorption capabilities in sunscreens. This level of customization requires close collaboration between suppliers and their industrial customers to ensure that the final product meets the desired performance criteria.

...
{随机栏目} 2025-08-14 07:51 1758