Tungsten trioxide nanopowder may be prepared into a thermal insulation coating, and then be used to produce a heat-insulating energy-saving glass, which is environmentally friendly of long life service. The obtained transparent heat-insulating glass has a high transmittance to visible light, reaching more than 70%. More importantly, such coating makes the optical performance of glass greatly improved compared with the conventional energy-saving glass. Therefore, a softer and more comfortable light environment can be created.
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The tungsten oxide coating layer on the energy-saving glass not only has high transmission characteristics to visible light, but also has high reflection property to the far-infrared rays, so such glass has excellent heat insulation performance and good light transmission compared with common glass and traditional energy-saving glass. In addition, the doors and windows of buildings applying with tungsten oxide energy-saving glass can greatly reduce the transfer of indoor heat energy to the outdoors in winter, achieving good heat preservation and energy saving effect.
