Coating material with catalytic function of color light

Abstract

The invention provides a coating material with the catalytic function of color light, belonging to the technical field of building coating. The coating material comprises the following raw materials: titanium dioxide photocatalysis powder or modified titanium dioxide photocatalysis powder, deionized water or distilled water, accessory ingredient and inorganic pigment, wherein proportion thereof is as follows: 2-50%:35-90%:0.1-5%:0.1-10%. The titanium dioxide photocatalysis powder or the modified titanium dioxide photocatalysis powder is anatase phase titanium dioxide, nonmetal-doped titanium dioxide, transition metal-doped titanium dioxide, rare earth metal-doped titanium dioxide, noble metal-doped titanium dioxide or oxide semiconductor-doped titanium dioxide; the accessory ingredient is dispersing agent and defoaming agent; the inorganic pigment is one kind of several kinds of iron blue, cobalt blue, iron red, chrome red, molybdenum red, titanium chromium yellow, iron yellow, titanium nickel yellow, chrome green, iron green, zinc green, titanium green, ultramarine violet, cobalt violet, manganese violet, titanium manganese brown, iron manganese brown, copper chromium black, titanium white black, zinc white and wollastonite powder. The coating material has the advantages of high photocatalysis efficiency, stable performance, abundant colors, low cost, stable combination, and convenient preparation and use.

Description

Technical field: [0001] The invention relates to a colored photocatalytic functional coating material, which belongs to the technical field of architectural coatings. Background technique: [0002] With the rapid development of modern industry, various new building materials are widely used in indoor insulation, decoration and decoration, and various coatings are also widely used in the decoration of rooms and furniture, making the surrounding environment refreshing in appearance. , comfortable and fresh feeling, but also sharply increase the indoor air pollution, among which volatile organic compounds such as formaldehyde, benzene, toluene, etc. are the main components of indoor air pollutants, which are extremely harmful to human health, such as formaldehyde and benzene series It is a potential carcinogen and strong carcinogen recognized in the world, and together with other volatile organic compounds, it can cause respiratory system, blood system and nervous system diseas...

AI Technical Summary

Problems solved by technology

[0004] But above-mentioned technology and the photocatalytic coating technology of existing report all have the following problems: the one, titanium dioxide is easy to be wrapped by binder, various additives, filler or surfactant, not only light absorption rate weakens, and can't effectively with pollutant. Contact, the photocatalytic decomposition effect is greatly weakened; second, the organic components in the coating will also be photocatalytically decomposed by the photocatalyst, and after a period of time, the coating will have problems such as powdering and falling off, which greatly reduces the service life of the coating. The higher the photocatalytic activity of the coating and the stronger the light, the shorter its service life will be; third, the currently published or reported photocatalytic coatings are all white, which cannot meet the needs of users for colored photocatalytic functional coatings

[0005] To sum up, although there are many methods for preparing photocatalytic functional coatings reported so far, they all have different degrees in terms of the photocatalytic activity of the coating, the stability of the coating, the service life and the user's demand for color. lack of