Liquid self-cleaning glass film, preparation method of self-cleaning glass and product obtained through preparation method

Abstract

The invention discloses a liquid self-cleaning glass film, a preparation method of self-cleaning glass and a product obtained through the preparation method. The preparation method comprises the preparation steps of mixing butyl titanate, alkoxysilane and ethanol, and performing stirring until the butyl titanate and the alkoxysilane are uniformly and sufficiently mixed so as to obtain a clear solution; adding water and acid, performing continuous stirring until the butyl titanate and the alkoxysilane are sufficiently hydrolyzed; after sufficient hydrolyzing, concentrating the obtained solution, obtaining a liquid self-cleaning glass film, coating the surface of the glass with the glass film, and drying so as to obtain the self-cleaning glass. The method is performed at the room temperature, and simple in technology; the glass film and a glass base material are firmly combined, so that the self-cleaning capacity is high, the hydrophilicity is good, the photodegradation organic pollutant is good in effect, and the service life is long. Compared with a conventional method, the preparation method disclosed by the invention has the advantages that the technology is simple, the cost is low, the industrialized production is facilitated, and the liquid self-cleaning glass film can be widely applied in the fields of glass curtain walls, window glass, solar power plants and the like.

Description

technical field [0001] The invention relates to a preparation method of a liquid self-cleaning glass film and the obtained liquid self-cleaning glass film, and also relates to a preparation method of the self-cleaning glass and the obtained self-cleaning glass, belonging to the technical field of nano-coating self-cleaning. Background technique [0002] Environmental pollution seriously affects people's normal life and disturbs the development of social economy. The pollution of the outer surface of the building not only affects the appearance of the building, but also increases the maintenance cost. Stain resistance has become an important factor for evaluating the quality of building exterior wall coatings. Indicators; and for the current various solar power plants, they are also troubled by cleaning problems, and directly affect the power generation. Therefore, self-cleaning has become a hot spot, and coating a layer of transparent self-cleaning coating directly on the gl...

AI Technical Summary

Problems solved by technology

One of the existing technologies is to cover a layer of highly hydrophilic or highly hydrophobic film on the glass surface at high temperature, which is expensive

Another method is to coat the surface with TiO 2 Photocatalyst layer, this method is low in cost, but the duration is short and the effect is relatively poor

At present, most of the existing technologies use TiO 2 or SiO 2 Nanoparticles are directly coated on the glass surface to form a self-cleaning film. For example, the published patent CN103468086A discloses a method using TiO 2 or SiO 2 films made of nanoparticles, these films incorporate TiO 2 or SiO 2 Nanoparticles are coated on the glass surface, and the distribution of nanoparticles is uneven. The resulting film not only has poor self-cleaning effect, but also uses a modifier containing F; there are also titanium dioxide sol and silicon dioxide sols that are made separately and then mixed and coated (CN103771021A), After annealing in a muffle furnace, the film has a hydrophilic and anti-fog effect. This invention not only has a complicated process, but also adds a lot of organosilane reagents and organic amine catalysts, and the amine catalysts lead to SiO after hydrolysis. 2 Polymerization of monomers, which affects the quality of the film