Conductive titanium dioxide and preparation method

Abstract

The invention discloses conductive titanium dioxide and a preparation method thereof. The conductive titanium dioxide comprises a titanium dioxide base material and a coating layer located on the surface of the titanium dioxide base material, the coating layer sequentially comprises a polyaniline coating layer and an ATO coating layer from inside to outside, and the ATO coating layer is doped withSb, C and N. The conductive titanium dioxide provided by the invention has the advantages of PANI, ATO and TiO2 are used at the same time, can greatly improve the conductivity, and has superconductivity. The invention also provides the preparation method of the conductive titanium dioxide. The preparation method comprises the following steps: carrying out polymer modification on titanium dioxidebefore polyaniline coating, carrying out later calcination and organic surfactant treatment after polyaniline film and ATO coating to provide the good wettability and the good dispersibility for the later use of the titanium dioxide, such that the titanium dioxide prepared through the method has characteristics of fine and uniform particles, high dispersibility, high weathering resistance and formula applicability.

Description

technical field [0001] The invention belongs to the technical field of titanium dioxide preparation, and in particular relates to a conductive titanium dioxide and a preparation method. Background technique [0002] With the continuous progress of science and technology in our country, the requirements for new materials are becoming more and more stringent. In order to meet the requirements of special fields, the use of conductive coatings meets the requirements of various complex environments. The preparation process of conductive coatings is relatively mature. However, it is still an urgent need to improve the conductivity of conductive coatings, so the research on superconducting titanium dioxide is very necessary. In recent years, some new types of conductive titanium dioxide have appeared on the market. The synthesis process is to mix titanium dioxide and graphene oxide. In the actual application process, the optical properties of this titanium dioxide are poor, and the...

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Problems solved by technology

[0002] With the continuous progress of science and technology in our country, the requirements for new materials are becoming more and more stringent. In order to meet the requirements of special fields, the use of conductive coatings meets the requirements of various complex environments. The preparation process of conductive coatings is relatively mature. However, it is still an urgent direction to improve the conductivity of conductive coatings, so the research on superconducting titanium dioxide is necessary.

In recent years, some new types of conductive titanium dioxide have appeared on the market. The synthesis process is to mix titanium dioxide and graphene oxide. In the actual application process, the optical properties of this titanium dioxide are poor, and the The weather resistance is relatively poor, and it is impossible to achieve long-term effective conductivity and anti-static requirements. Therefore, the development of new superconducting titanium dioxide is the key to improving conductive coatings.

[0003] At present, the synthesis methods of inorganic composite conductive titanium dioxide are mainly divided into the following types: 1), coating the conductive layer ATO (SnO2) on the surface of titanium dioxide 2 doped with Sb); 2), titanium dioxide surface coated with FTO (SnO 2 Doping F); 3), titanium dioxide surface coating ITO (In 2 o 3 Doped with Sn), etc., the way of ATO coating is currently more respected way, both ATO and TiO 2 It has the advantages of certain conductivity, light color, good weather resistance and temperature resistance, but the conductivity of titanium dioxide coated with ATO still cannot meet the requirements of modern society, especially in special fields.

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