Titanium dioxide pigment and its preparing method

Abstract

The invention relates to titanium dioxide paint and the method to manufacture that belongs to the improvement of durability and optical properties for titanium dioxide. The titanium dioxide paint includes rutile type or anatase type titanium dioxide particle that includes zirconia, amorphous silica and hydrated alumina coating. Moreover, it has organic coating absorbed or bonding on it.

Description

technical field

[0001] This invention relates generally to titanium dioxide pigments, and more particularly to titanium dioxide pigments containing zirconium oxides, silicon oxides and aluminum oxides, which pigments have improved durability and optical properties. Background technique

[0002] As an opaque pigment, titanium dioxide is widely used in the paint industry, paper mills and as a matting agent for fibers. In order to improve the application performance of titanium dioxide pigments, they are generally treated with inorganic compounds to improve their properties such as durability, whiteness, color reduction and hiding power. Titanium dioxide pigments used in plastics and outdoor coatings should have excellent pigment performance, and the ideal performance is durability, that is, the ability to prevent yellowing and chalking. In order to improve weather resistance, titanium dioxide pigments are often used with one or more Hydrated oxides are coated, especially Si o...