Nano grain size cesium tungstate may be applied for preparing window heat insulation film. That is to say, nano particle size cesium tungstate is a type of nano inorganic powder for heat insulating architectural glass. As we all know, the heat lost through the doors and windows accounts for about 50% of the entire building heating and air conditioning energy consumption.
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In this regard, experts said that improving the thermal insulation performance of doors and windows is an effective way to reduce building energy consumption. Therefore, energy-saving methods such as heat-reflecting glass, insulating glass, and heat-reflecting glass film have been invented, which are aimed at blocking the excess heat radiation in sunlight to achieve the purpose of cooling. However, some of these products have poor thermal insulation effects, some have low visible light transmittance, and some are too expensive, which makes them difficult to mass application. Later, experts discovered that nanomaterials such as cesium tungstate nano particles have excellent thermal insulation effects and high visible light transmittance. Therefore, research focuses on such material.
