Stable-state titanium dioxide colloid and preparation method thereof

Abstract

The invention relates to a stable-state titanium dioxide colloid. The stable-state titanium dioxide colloid comprises the following components in parts by weight: 5-10 parts of titanium dioxide, 4.5-5.5 parts of water and 0.55-0.7 part of thickener. The preparation method of the stable-state titanium dioxide colloid comprises the following steps of: (1) directly pouring titanium dioxide, water and the thickener into a ball mill for grinding proportionally; (2) taking out the ground colloid to obtain a finished product. The stable-state titanium dioxide colloid and the preparation method provided by the invention have the advantages that precipitation and aggregation of titanium dioxide can be avoided and good quality of the product can be ensured; the titanium dioxide colloid is free of precipitation and aggregation, convenient to use and suitable for storage for a long time; the product quality problems of the present pigments and coatings using the titanium dioxide due to precipitation and aggregation are changed; the stable-state titanium dioxide colloid can be blended instantly according to the amount needed by the pigment and the coating; the stable-state titanium dioxide colloid is good in dispersity without particles; as long as the stable-state titanium dioxide colloid is used, the blending efficiency and the blending effect can be improved; moreover, the purposes of no waste, energy saving and emission reduction, and high economic benefit are achieved.

Description

technical field [0001] The invention relates to titanium dioxide in the field of chemical products, in particular to a stable titanium dioxide colloid and a preparation method thereof. Background technique [0002] Titanium dioxide (chemical formula TiO 2 , commonly known as titanium dioxide) is an important white pigment and porcelain glaze, which is widely used in latex industry and paint industry. Titanium dioxide has many functions, not only as a white pigment, but also as an essential pigment toner, as a hiding agent for latex products, and as a photocatalyst in modern coatings (available Widely used in the decomposition of formaldehyde, benzene-containing organic matter, etc.). [0003] At present, during the use of titanium dioxide in the above fields, titanium dioxide is usually mixed with water and various pigments, and then mixed in a ball mill to form a good dispersion of titanium dioxide in the mixed solution. However, the ground product needs to be used as so...

AI Technical Summary

Problems solved by technology

[0004] Since the titanium dioxide solution is agglomerated due to precipitation at the bottom of the container, it needs to be fully stirred again before use, which will cause the following problems: 1. However, after adding such substances to the latex, in order to fully disperse, the stirring process is time-consuming and laborious , and when the stirring time is long, it is easy to generate bubbles in the latex liquid, and stirring for too long will cause the latex to heat up and cause the latex to polymerize; 2. Due to the agglomeration of titanium dioxide particles, it is difficult to form a single particle even if it is stirred The particles are dispersed and cannot achieve the dispersion effect of ball mill grinding. Although the agglomerated particles are small, they will seriously affect the product use effect

For example, when used in the production of condoms, the agglomerated particles are in the gelled film, which is unsightly, and the agglomerated particles will directly cause rupture, water leakage and air leakage, seriously affecting product quality

If these titanium dioxides are used as toners for pigments, the color of the pigments will be seriously affected due to poor dispersion; 3. Due to serious sedimentation, the titanium dioxide solution will not be able to be stored for a long time, to a large extent, Whether it is a pigment or a paint, it will often remain at the bottom of the container due to the precipitation of titanium dioxide during use.