Composite titanium dioxide and preparation method thereof

Abstract

The invention discloses composite titanium dioxide with high brightness and high performance and a preparation method thereof, in particular to a preparation method of composite titanium dioxide capable of gaining significantly enhanced covering capacity and high brightness. The preparation method comprises the specific steps such as grinding, oxidative coating, ball-milling, and drying; the composite titanium dioxide with the surface covered with long-carbon-chain anionic surfactant is provided through the process and has (-C15-20H30-40) long-chain groups on the surface, a coupling agent may be hydrolyzed to produce alcoholic groups that are condensed into self-polymerized groups, and accordingly a high-surface-activity material is grated to the surface of the composite titanium dioxide; the superfine active composite titanium dioxide prepared herein may be applied to the plastic industry, particularly plastics such as PVC (polyvinyl chloride) and PVC gusset plates.

Description

technical field [0001] The invention relates to a composite titanium dioxide with high whiteness and high performance and a preparation method thereof. In particular, it relates to a method for preparing composite titanium dioxide that can significantly enhance the hiding power of composite titanium dioxide and has high whiteness. Background technique [0002] As a white pigment, titanium dioxide has superior density, dielectric constant and refractive index, and also has high hiding power, high decolorization power, high finish, high whiteness and stable weather resistance, and is also chemically inert and non-toxic. , harmless to the human body and other properties, so it has become the white pigment with the best performance so far, and has become an important white pigment in the national economy. More than 20 fields. In particular, the paint industry is the largest user of titanium dioxide. The paint made of titanium dioxide has bright colors, high hiding power, stron...

AI Technical Summary

Problems solved by technology

However, in terms of performance, there is currently no composite titanium dioxide body that can replace the role of pure titanium dioxide in the market, such as reduced hiding power, insufficient weather resistance, unsatisfactory achromatic performance, etc., so the current To a certain extent, titanium dioxide technology replaces titanium dioxide by sacrificing some of the proper properties of titanium dioxide, and cannot completely replace titanium dioxide.