Photocatalytic environment friendly nano ceramic film coating and preparation method thereof

Abstract

The invention provides a photocatalytic environment friendly nano ceramic film coating and a preparation method thereof, belonging to the field of functional coating. The nano ceramic film coating is mainly prepared from nanoscale alumina sol, light touch media, pigment, filler, titanium potassium whisker, methyl trimethoxy silane, methyl-trimethoxysilane and the like, wherein, the light touch media is one or the complex system of nano titanium dioxide and nano zinc oxide. The preparation method is as follows: respectively weighing corresponding nanoscale alumina sol, light touch media, pigment, filler, methyl trimethoxy silane and methyl-trimethoxysilane, then mixing and dispersing at a high speed, and adding titanium potassium whisker to carry out low speed dispersion to obtain the photocatalytic environment friendly nano ceramic film coating. The coating prepared by the invention has the functions of self cleaning, sterilization, air purification and the like, and meanwhile, the coating has safety and no toxicity naturally, and is environment friendly nano ceramic film coating.

Description

technical field [0001] The invention belongs to the field of functional coatings, and relates to a nano-ceramic film coating with photocatalytic function and a preparation method thereof. Background technique [0002] At present, the problem of environmental pollution in our country is very prominent, especially the urban air pollution is very serious. Industrial coal burning releases a large amount of SO 2 , CO and other harmful gases; with the rapid development of the automobile industry, a large amount of nitrogen oxides and CO emitted by automobile exhaust have caused serious air pollution in large and medium-sized cities; many interior decoration materials and furniture will slowly release such as aldehydes, phenols, Small molecules such as alcohols are harmful organic substances, and central air conditioners also produce unpleasant odors and spread pathogenic microorganisms. Due to the aggravation of air pollution, it has become increasingly difficult to clean modern...

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Problems solved by technology

US Patent 10 / 635950, Cleaning-friendly apparatus with an easilycleanable, heat-resistant surface coating, reported that by adding SiO to the organic system 2 、Al 2 o 3 , Fe 2 o 3 、In 2 o 3 , SnO 2 , ZrO 2 or TiO 2 and other nano-materials to improve the self-cleaning and hydrophobic properties of kitchen utensils, glass, ceramics and other substrates, but in the construction process, high-temperature treatment is required to form a film, which is likely to cause the agglomeration of nanoparticles, and make the construction process complicated and unsuitable for operation; China Patent CN 1786087A reports a nanocomposite coating with photocatalytic function and its preparation method, in TiO 2 Add SiO to the system 2 and special nanomaterials to make nano-TiO 2 The catalytic performance of the coating is no longer limited by ultraviolet rays, so that it can also exert its strong catalytic ability in the visible light region. However, in the preparation process of the coating, organic acids, nicotinamide dichromate, etc. are used as water-soluble oxidants. Such reagents are harmful to the human body during the construction process or in the later period of use, and do not meet the requirements of environmental protection.

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