Main uses of titanium dioxide

Titanium dioxide is widely used in coatings, plastics, rubber, ink, paper, chemical fiber, ceramics, daily chemicals, medicine, food and other industries. The coating industry is the largest user of titanium dioxide, especially rutile type titanium dioxide, which is mostly consumed by the coating industry. The paint made of titanium dioxide has bright colors, high hiding power, strong coloring power, low consumption, and a wide variety. It can protect the stability of the medium, enhance the mechanical strength and adhesion of the paint film, prevent cracks, prevent ultraviolet rays and water penetration, and extend the life of the paint film.

The plastic industry is the second largest user. Adding titanium dioxide to plastics can improve the heat resistance, light resistance, and weather resistance of plastic products, improve the physical and chemical properties of plastic products, enhance their mechanical strength, and extend their service life.

The papermaking industry is the third largest user of titanium dioxide, which is mainly used as a paper filler in high-grade and thin paper. Adding titanium dioxide to the paper can make the paper have better whiteness, good gloss, high strength, thin and smooth, non penetrating during printing, and light weight. Titanium dioxide for paper making generally uses anatase titanium dioxide without surface treatment, which can act as a fluorescent whitening agent and increase the whiteness of the paper. However, laminated paper requires the use of surface treated rutile titanium dioxide to meet the requirements of light and heat resistance.

Titanium dioxide is also an indispensable white pigment in advanced inks. The ink containing titanium dioxide is durable and does not change color, has good surface wettability, and is easy to disperse. The titanium dioxide used in the ink industry includes rutile type and anatase type.

The textile and chemical fiber industries are another important application field of titanium dioxide. Titanium dioxide for chemical fiber is mainly used as a matting agent. Because the anatase type is softer than the gold red type, the anatase type is generally used. Titanium dioxide for chemical fiber generally does not require surface treatment, but some special varieties require surface treatment in order to reduce the photochemical action of titanium dioxide and avoid fiber degradation under the photocatalytic action of titanium dioxide.

Titanium dioxide is not only used as a colorant in the rubber industry, but also has reinforcing, anti aging, and filling effects. Titanium dioxide is added to white and colored rubber products, which is resistant to sunlight, cracking, discoloration, high elongation, and acid and alkali resistance under sunlight. Titanium dioxide for rubber is mainly used in automobile tires, rubber shoes, rubber floors, gloves, sports equipment, etc., and is generally made of anatase titanium. However, for the production of automotive tires, a certain amount of rutile type products are often added to enhance the ability to resist ozone and ultraviolet rays.

Titanium dioxide is also increasingly widely used in cosmetics. Because titanium dioxide is non-toxic and far superior to lead white, almost all kinds of perfume powders use titanium dioxide instead of lead and zinc white. Only 5% - 8% titanium dioxide can be added to the fragrance powder to obtain a permanent white color, making the fragrance smoother, with adhesion, absorption, and hiding power. In gouache and cold cream, titanium dioxide can reduce the feeling of greasy and transparent. Titanium dioxide can also be used in various other spices, sunscreen, soap, white soap, and toothpaste.

Porcelain glazes made from titanium dioxide have strong transparency, low quality, strong impact resistance, good mechanical properties, bright colors, and are not easily contaminated. Titanium dioxide for food and medicine is titanium dioxide with high purity, low heavy metal content, and strong covering power.