Yellow tungsten oxide nanopowder may be used to prepare glass thermal insulation coating. Such coating mainly utilizes the special optical properties of tungsten trioxide nanomaterials to play a role of shielding infrared rays and ultraviolet rays. The visible light transmittance of the obtained glass is more than 70%. The shielding ratio of near infrared rays is greater than 90%. And the shielding rate of ultraviolet rays is greater than 97%.
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The transparent coating of nano particle size tungsten trioxide is prepared by high-tech nanotechnology. Such coating can protect people and objects indoors from ultraviolet light with high heat insulation performance. And it can effectively block the solar energy (near infrared light) and prevent it from heating the living environment. More important, as it is an energy-saving and environmentally-friendly coating, the tungsten trioxide coating may have good market prospect in field of glass heat insulation coatings. For example, tungsten trioxide thermal insulation coating may be applied to new environmental protection projects, mainly in glass production plants, glass processing plants, door and window processing plants and architectural decoration companies, and glass curtain wall companies to carry out the reform on the overall environmental protection and energy conservation.
