At present, rutile titanium dioxide is mainly divided into sulfuric acid method and chlorination method. Among the two methods, the outstanding one is the whiteness, which is usually good, while the sulfuric acid method is uneven. Secondly, the fineness and dispersibility are relatively fine, with generally good dispersibility.
Its uses are relatively broad: it can be used in coatings, powder coatings, water-based/oil-based coatings, coil coatings, automotive topcoats, primers, ceramics, enamel, color masterbatches, PVC pipes, shoe materials, chemical fibers, and so on.
Coating industry: Coatings made of titanium dioxide have bright colors, high covering power, strong coloring power, low dosage, and a wide range of varieties. They can protect the stability of the medium, enhance the mechanical strength and adhesion of the paint film, prevent cracks, prevent UV and water penetration, and extend the lifespan of the paint film.
Plastic industry: Adding titanium dioxide to plastics can improve the heat resistance, light resistance, and weather resistance of plastic products, enhance their physical and chemical properties, enhance their mechanical strength, and extend their service life.
Paper industry: As a paper filler, it is mainly used in paper and thin paper. Adding titanium dioxide to the paper can make it have good whiteness, good gloss, high strength, thin and smooth, and light weight when printing. Titanium dioxide used in papermaking generally uses untreated anatase titanium dioxide, 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.
Ink: 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 both rutile and anatase types