Compound titanium dioxide

Abstract

The invention discloses compound titanium dioxide and belongs to the field of compound titanium dioxide. The compound titanium dioxide is prepared from the following raw materials in part by weight: 80-90 parts of mineral powder, 60-70 parts of TiO2 with 1000-2000 meshes, 4-6 parts of an activating agent, 0.5-1 part of a whitening agent, 5-6 parts of an ionic compound agent, 5-6 parts of sodium silicate, 80-90 parts of calcium carbonate, 80-90 parts of talc, 80-90 parts of dolomite, 90-100 parts of calcined kaolin and 4-5 parts of a silane coupling agent. While a preparation method of the compound titanium dioxide combines the advantages of a dry process and a wet process, the activating agent, a hyperdispersant, the ionic compound agent and other components which are favorable for full and rapid reaction of various material components are also respectively used at different stage in the preparation process, so that the performances of the compound titanium dioxide are greatly improved.

Description

technical field [0001] The invention relates to composite titanium dioxide, in particular to a composite titanium dioxide. Background technique [0002] The so-called titanium dioxide substitute refers to an inorganic powder material that has the performance of titanium dioxide and is more cost-effective than titanium dioxide, and can partially or completely replace titanium dioxide. Since the 1970s, research and development of titanium dioxide substitutes have begun, and have achieved good economic benefits. For example, Japan uses composite SiO2 titanium dioxide for synthetic fibers; the talc composite titanium dioxide produced by the United Kingdom and Germany has been used in papermaking; the United States uses mica, kaolin and TiO2 to prepare composite titanium dioxide products, which are widely used in the cosmetics industry. Composite titanium dioxide obtained by choosing some mineral powders with white powder appearance and soft texture and TiO2 can meet the require...

AI Technical Summary

Problems solved by technology

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