Method for preparing photocatalysis enamelled strip

Abstract

The invention relates to a preparation method of an enameled pressed steel. The invention is designed to provide the method of preparing a photochemical catalysis enameled pressed steel under normal or low temperature and has procedures as follows: (1) the enameled pressed steel is immersed into strong acid water solution; after 30 minutes, the enameled pressed steel is taken out to be cleaned by water and dried for later use; (2) Tio2 collosol is applied to the surface of the cleaned enameled pressed steel processed by the procedure (1) and dried; (3) and the procedure (2) is repeated and the Tio 2 collosol is coated twice to five times to form a Tio2 coating on the surface of the enameled pressed steel. Compared with the prior art, the preparation method has the beneficial effects of providing the method of preparing the photochemical catalysis enameled pressed steel under normal or low temperature, solving the problem existing in the past method that the Tio2 coating needs to be sintered under high temperature, coating the surface of the enameled pressed steel with Tio2 easily, low preparation cost, giving the properties of self-cleaning and contaminate resistance to the enameled pressed steel and fulfilling the function of purifying environment.

Description

technical field [0001] The invention relates to a preparation method of an enamel steel plate, more specifically, the invention relates to a preparation method of a photocatalytic enamel steel plate. Background technique [0002] Enameled steel plate not only has the strength and flexibility of steel plate, but also has the advantages of acid and alkali resistance, corrosion resistance and fire resistance of enamel. It has become an important building material and is widely used in subway inner walls, tunnel walls, building outer walls, etc. The field of decoration. However, after a certain period of time, pollutants such as dust and smoke in the air will adhere to the surface of the enamel steel plate, which will affect the appearance of the enamel. By coating TiO on the enamel surface 2 coating, which can effectively enhance the self-cleaning and anti-staining performance of enamel, and it can also pass TiO 2 The photocatalytic action decomposes organic pollutants and p...

AI Technical Summary

Problems solved by technology

In this method TiO 2 The preparation of the coating requires high temperature sintering, and the process is relatively cumbersome