Nano grain size cesium tungsten bronze has excellent near-infrared shielding property so that it may be used for the preparation of thermal insulation film. In other words, cesium tungsten bronze is a type of near-infrared shielding material. This so-called near-infrared shielding material generally refers to a type of dingal film material that has a strong absorption or reflection of near-infrared light without affecting its visible light transmission. That is to say, this new thermal-insulating material has high heat insulation performance, and ensures high transparency at the same time.
As a new type of transparent heat insulation material, nano cesium tungsten bronze powder has a wide application prospect in the field of green building energy conservation. The cesium tungsten bronze may be prepared into coating and then be coated on the glass. The preparation method of such cesium tungsten bronze coating may be carried out by mixing cesium tungsten bronze powder and a type of film forming agent such as polyvinyl butyral (PVB), polyvinyl alcohol (PVA) or collodion.
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