Granular titanium dioxide and preparation method thereof

Abstract

The invention discloses granular titanium dioxide and a preparation method thereof. The granular titanium dioxide is characterized by consisting of the following components in percentage by weight: 80-90% of titanium dioxide, 8-12% of superfine macromolecular microcrystalline wax and 5-15% of silane coupling agent. In the invention, the powder titanium dioxide is made into granules; without a resin carrier, the titanium dioxide and surface treatment auxiliaries are perfectly compatible with various resin materials, and the use is not limited by the resin variety; the granular titanium dioxide is directly mixed with the resin without adding other auxiliaries, and the shortcoming that the titanium dioxide is difficult to disperse in resin is remarkably improved in early treatment; moreover, due to the high titanium content, the granular titanium dioxide is very suitable for producing backlight materials; at present, domestic production of a backlight material is always performed after granulation while the granular titanium dioxide can be directly mixed with the resin at a super-high amount for direct production, so that the granulation process is reduced, and the cost is saved; and finally, the dust generation is avoided in the trial use of the granular titanium dioxide, thereby reducing the environmental pollution.

Description

technical field [0001] The invention belongs to a granular titanium dioxide and a preparation method thereof. Background technique [0002] Titanium dioxide is a white powdery substance. Due to the restriction of its production method, powdered titanium dioxide produces a large amount of dust during the use in the plastic industry, which seriously pollutes the working environment. And in the actual production of plastic products, when the addition amount of titanium dioxide powder reaches more than 1%, it will produce uneven dispersion or even be unable to produce due to too much powder. [0003] In recent years, some people in the market use titanium dioxide powder and resin materials as carriers for co-extrusion granulation, which plays a certain role in plastic production for users. However, due to the variety of plastic resins and the different molecular structures of different types of plastic resins, co-extrusion The product is subject to great constraints in use and ...

AI Technical Summary

Problems solved by technology

[0002] Titanium dioxide is a white powdery substance. Due to the constraints of its production method, powder titanium dioxide produces a lot of dust during the use of the plastic industry, which seriously pollutes the working environment.

And in the actual production of plastic products, when the addition amount of titanium dioxide powder reaches more than 1%, it will produce uneven dispersion or even be unable to produce due to too much powder.

[0003] In recent years, some people in the market use titanium dioxide powder and resin materials as carriers for co-extrusion granulation, which plays a certain role in plastic production for users. However, due to the variety of plastic resins and the different molecular structures of different types of plastic resins, co-extrusion The product is subject to great constraints in use and the content of titanium dioxide in this co-extruded granulated product is very low, so the choice is limited in terms of cost and convenience