tio2 equipment

Titanium dioxide powder, a white crystalline powder, is widely used in various industries due to its excellent physical and chemical properties. It has high refractive index, strong covering power, and good stability, making it an ideal material for paints, plastics, papermaking, and other fields. In recent years, with the rapid development of these industries, the demand for titanium dioxide powder has been growing steadily. Therefore, many countries have established titanium dioxide powder factories to meet this demand.

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The main concern with nanoparticles is that they are so tiny that they are absorbed into the skin more than we want them (ideally sunscreen should remain on the surface of the skin). Once absorbed they might form unwanted complexes with proteins and they might promote the formation of evil free radicals. But do not panic, these are concerns under investigation. A 2009 review article about the safety of nanoparticles summarizes this, to date, in-vivo and in-vitro studies have not demonstrated percutaneous penetration of nanosized particles in titanium dioxide and zinc oxide sunscreens. The English translation is, so far it looks like sunscreens with nanoparticles do stay on the surface of the skin where they should be.  

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