Nano Tungsten Trioxide Applied for Glass Thermal Insulation Coating

Nano tungsten trioxide may be used to prepare a glass thermal insulation coating. The obtained transparent coating not only has good light transmittance, but also can effectively isolate solar heat radiation, so that it can be widely applied to glass windows of automobile and various architectural.

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It is reported that the environmentally friendly thermal insulating coating of nano particle size tungsten oxide has good spectral selectivity. Only a thin layer of tungsten oxide coating is required, and the visible light transmittance of the sprayed glass can reach more than 75%. Moreover, it can shield more than 99% of the ultraviolet rays (wavelength: 220-379nm) that seriously endanger health and damage furniture. In addition, the shielding rate of such coating in the near-infrared band of 780-2500nm is more than 65%. It is reported that the coating can save energy by 20-30%. Therefore, even if people do not turn on the air conditioner, they can enjoy "a warm winter and a cool summer".

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