Tungsten Oxide Nanopowder Applied for Nano Transparent Thermal Insulation Coating

Tungsten oxide nanopowder may be used to prepare a new type of nano transparent thermal insulation coating, which can be applied to architectural glass to obtain a heat insulation film to shield most of the harmful ultraviolet rays of 0.20-0.38μm and infrared rays of 0.78-2.5μm.

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In addition, the environmentally friendly heat-insulating coating of tungsten trioxide nano particles has a high transmittance for light having a wavelength of 0.38 to 0.78μm in the visible light region. Therefore, such energy efficient coating can achieve high transparency and high heat insulation uniformity on architectural glass and even automotive glass, achieving a large energy saving effect without affecting indoor lighting. Different from the metal film and the magnetron sputtering film, the formed tungsten trioxide film does not shield the mobile phone and the GPS signal. And the performance is stable. Also, the film is not easy to oxidize. And the heat insulation performance is not attenuated.

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