A solar glass anti-reflection coating with self-cleaning function and its preparation method and self-cleaning high anti-reflection solar glass

Abstract

The invention relates to the technical field of solar glass anti-reflection coatings, in particular to a solar glass anti-reflection coating with self-cleaning function, a preparation method thereof, and a self-cleaning high anti-reflection solar glass. The solar glass anti-reflection coating with self-cleaning function includes nano slurry and nano core-shell silicon dioxide microsphere emulsion. Components of nano slurry: titanium dioxide microsphere powder with nano hollow structure, dispersant and solvent. The preparation method is to introduce nano hollow titanium dioxide particles with low refractive index and high catalytic activity into the nano core-shell silica microsphere emulsion, so as to prepare a durable solar anti-reflection coating with self-cleaning and anti-reflection functions. The self-cleaning high anti-reflection solar glass solves the problem that the existing solar glass is easily attached by industrial pollutants and is difficult to clean, and can stabilize and improve the power generation efficiency of solar cells and reduce the maintenance and management costs of solar cells.

Description

technical field [0001] The invention relates to the technical field of solar glass anti-reflection coatings, in particular to a solar glass anti-reflection coating with self-cleaning function, a preparation method thereof, and a self-cleaning high anti-reflection solar glass. Background technique [0002] Solar photovoltaic is one of the clean energy sources with the most development potential at present. Relevant practitioners in various countries are making every effort to develop various advanced technologies and new products, hoping to improve the photoelectric conversion efficiency. At present, most photovoltaic glass manufacturers are working hard to improve the light transmittance of photovoltaic glass. Generally, they use the interference principle of light to add a layer of anti-reflection coating on the glass. Many anti-reflection coating solutions on the market can achieve anti-reflection. 3% effect, but there is not much room for improvement. On the other hand, ...

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Problems solved by technology

[0004] However, the above three antifouling self-cleaning antireflection coatings all have defects: the superhydrophobic antifouling antireflection coating is an organic chain segment, which is easily decomposed and aged by sunlight ultraviolet radiation, and the mechanical friction performance of the film layer is poor and other reasons will make the super-hydrophobic properties of the film gradually disappear and lose the self-cleaning effect; while the antistatic super-hydrophilic anti-fouling and anti-reflection coating has a good effect on inorganic pollutants such as dust and carbon, but Powerless against industrial pollutants

However, its main disadvantage is that the reflectivity of ordinary titanium dioxide is high. Too much titanium dioxide added will cause low light transmittance or even severe reflection of the film layer. However, to make the film layer have a good catalytic effect, nano-titanium dioxide particles must be exposed as much as possible. On the surface of the film layer, it can be in contact with pollutants, so too little addition will affect the photocatalytic effect of the film layer, resulting in poor self-cleaning effect, which makes increasing light transmittance and self-cleaning effect a contradiction.