Nano grain size yellow tungsten oxide is a near infrared shielding material that may be used in building glass to play a role of heat insulation, in the form of coating or film. This type of material has high UV shielding performance, and the ultraviolet shielding rate is as high as 99%, thereby providing a safe "sun protection umbrella" for residents and other personnel in such buildings, without pollution. Also, it reduces the energy costs on air conditioning.
At the same time, in order to achieve the transparency of the glass, and to maintain the overall appearance of the glass door or window as much as possible, the coated glass shows blue color from the inside of the room. The color is translucent, and therefore people may clearly see the outside view even in the night. For this point, the product adopts a transparent polymer resin as a film-forming material, and nano-conductive ultrafine particles which are hundreds of times thinner than the hair silk as a dingal material, so that the nano-conductive ultrafine particles may be evenly distributed in the transparent resin coating.
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