Iron oxide red anticorrosive paint capable of releasing anions and preparing method thereof

Abstract

The invention discloses iron oxide red anticorrosive paint capable of releasing anions. By adding modified crofton weed to raw materials as a binder, cohesiveness and compatibility with a polymer are improved, and anti-microbial and environment protecting purposes are realized; nanosilicon dioxide and superfine iron oxide red powder are mixed evenly and then subjected to organic modification, so that organification of the surface of the iron oxide red powder is achieved, the lipophilicity of the iron oxide red powder and compatibility between the iron oxide red powder and organic matter are improved, the problem that agglomeration of superfine iron oxide red powder occurs easily is solved, and the water resistance and corrosion resistance of the paint are improved; besides, according to the modified nanosilicon dioxide, a cross-linked interpenetration structure is formed by an inorganic SiO2 network and a polymer chain, so that movement of the polymer molecular chain is inhibited, and the heat resistance of the paint is improved; the prepared paint can release anions and has high water resistance and breath power, and the preparing process is simple and suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an iron oxide red anti-corrosion coating capable of releasing negative ions and a preparation method thereof. Background technique [0002] With the continuous development of my country's modern industry, especially in metallurgy, petrochemical, energy, new materials and military industries, more and more high-temperature equipment and supporting facilities are used. Oxidation reaction produces rust phenomenon, which makes metal materials gradually lose strength and lead to structural loss, which becomes a hidden danger of various accidents. Therefore, the surface of high-temperature equipment generally needs to be protected by coating with high-temperature resistant anti-corrosion coatings to prevent oxidation and corrosion of metal materials and prolong the service life of high-temperature equipment. [0003] Iron oxide red, also known as rust red, is a red iron oxide powder. ...

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Problems solved by technology

[0006] However, although the iron oxide red ultrafine powder has the advantages of small particle size, large specific surface area, strong surface activity, and fast chemical reaction speed, it also has thermodynamic instability and is prone to agglomeration, which seriously affects the application performance. , so we need to improve the dispersion performance of ultrafine iron oxide red powder; most of the commonly used binders in the pr