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Product Details:
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Coating is a viscous suspension composed of pigments, oils, paints (resins), solvents and drier, etc. It is coated on the surface of the object by the oxidation of air and the volatilization of solvents to form a tough coating film, which plays a decorative and protective role on the object. The pigment in the paint not only makes the paint film show different colors, to achieve beauty and decoration, it can also enhance the mechanical strength and adhesion of the paint film, and prevent the penetration of ultraviolet light and moisture, so that the paint film itself delays the aging effect and extends the service life.
White pigments are the most widely used pigments, white paint and light-colored paint are used in it, so in the paint, the amount of white pigments is much more than other pigments, and the white pigments that can be used for paint are often zinc white, zinc barium white and titanium dioxide. Due to the development of coating industry varieties, synthetic resin coatings appear, its polymerization degree is large, such as adding zinc white, because zinc white has alkaline, and the function of drifting fatty acids in the coating, and there is a tendency to thicken; If zinc barium white is added, the weather resistance is poor. However, the use of titanium dioxide can improve the above shortcomings, because the particles of titanium dioxide are small and uniform, the photochemical stability is high, the covering rate is more than two times that of zinc white, zinc barium white, and the achromic power is 5 to 6 times, so the amount of pigment in the entire paint can be greatly reduced, and the paint color made is good and not easy to yellow. And has heat resistance and acid resistance, sulfur resistance, alkali resistance and other chemical stability, especially rutile titanium dioxide, its structure is stable, weather resistance is better than anatase, ultraviolet radiation resistance, in the outdoor will not powder and other advantages, so it is suitable for a variety of advanced ships, Bridges, automobiles, buildings and other outdoor coatings with high weather resistance. Anatase titanium dioxide is generally only used for indoor coating. It can be seen that titanium dioxide has become an essential white pigment in the production of coatings. About 60% of the world's tio2 is used in the production of various coatings
