Photocatalytic coating

Abstract

The invention discloses photocatalytic coating. The photocatalytic coating is prepared from the following raw materials in parts by weight: 50-60 parts of water-based fluorocarbon resin emulsion, 15-59 parts of AS resin I, 1-10 parts of AS resin II, 0.1-0.2 part of nano carbon dioxide, 3-6 parts of anatase type lanthanum sulfide co-doped nano titanium dioxide, 5-25 parts of heat conducting filler, 0.25-2.5 parts of infrared reflection titanium dioxide, 0.1-0.5 part of a light stabilizer, 0.5-5 parts of a chemical resistant modifying agent, 0.5-1.5 parts of tea polyphenol, 2-4 parts of folium artemisiae argyi oil, 2-4 parts of vanillic aldehyde, 2-4 parts of thymol, 10-20 parts of acrylpimaric(2-p-nitrophenyl)thiadiazole, 1.5-2 parts of pigment and 0.5-2 parts of other auxiliaries. The photocatalytic coating can carry out good catalytic degradation and purification on gaseous pollutants in the air environment and also has good weather resistance, contamination resistance, corrosion resistance and antibacterial property.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a photocatalytic coating. Background technique [0002] Since 1972, Professor Benta of the University of Tokyo and Professor Tengshima Akira, who was a doctoral student at the time, accidentally discovered that irradiating titanium dioxide electrodes with light can split water into hydrogen and oxygen, which is called the "Hondo-Tengshima effect". Since the phenomenon of nano-titanium dioxide, the photocatalytic properties of nano-titanium dioxide have been confirmed by many researches and applications. 10g of nano-titanium oxide photocatalyst is evenly painted on four glass plates of 500mm×500mm, and after natural drying, it is placed in the inner warehouse of 600mm× 600mm×600mm environmental climate box. Adjust the temperature in the environmental climate chamber to keep it at (23±2)°C, adjust the humidity in the cabin to keep it at (50±5)%, and the light source is a 40W fluo...

AI Technical Summary

Problems solved by technology

[0003] Because the paint is exposed to the atmospheric environment for a long time, especially the exterior wall paint, it has to withstand weather changes such as wind, sun, rain, smog, etc., and due to the increasingly serious environmental pollution, there are more dust and suspended substances in the atmosphere, which will It is easy to cause powdering, discoloration, peeling, staining and other phenomena of the coating to lose its original decorative effect, thus affecting the appearance of the building