Application of titanium dioxide characteristics
Apr 18, 2023
Titanium dioxide is an important white pigment and glaze for porcelain. Used in paints, inks, plastics, rubber, paper making, chemical fiber, watercolor pigment and other industries.
Titanium dioxide is the whitest substance in the world. One gram of titanium dioxide can turn an area of more than 450 square centimeters white. It is 5 times whiter than the usual white pigment - lithopone, therefore it is the best pigment for white paint. Titanium dioxide used as a pigment in the world amounts to more than hundreds of thousands of tons per year. Titanium dioxide can be added to paper to make the paper white and opaque. The effect is 10 times greater than that of other substances. Therefore, titanium dioxide should be added to banknote and art paper.
Titanium dioxide is sometimes added to lighten the color of plastic and soften the shine of viscose.
In the rubber industry, titanium dioxide is also used as a filler in white rubber.
The photochemical properties of semiconducting titanium dioxide have allowed it to be used in many fields, such as air, water and liquid purification. Photocatalysts doped with carbon or other heteroatoms can also be used in confined spaces or areas with scattering light sources. When used in building pavements, paving slabs, concrete walls or tiles, they can significantly increase the breakdown of air pollutants such as nitrogen oxides, aromatics and aldehydes.
In addition, it is also widely used in the production of sunscreens, which is non-toxic and harmless to the human body.
Ultra-fine titanium dioxide has excellent UV protection and transparency. It is widely used in cosmetics, wood preservatives, food packaging plastics, durable household films, artificial and natural fibers, and clear coatings. The special optical effect in metal flash coating makes it valuable and used in high-quality automotive paint.