Cesium tungsten oxide particles, or cesium tungsten bronze particles, as a new dingal material (infrared absorber), may be used to produce a transparent thermal insulation film, which is mainly used for building and automotive glass to provide heat insulation performance, with the advantages of energy conservation and consumption reduction. Also, such heat insulation product will enhance the comfort of the human body.
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Experts said that the raw material nano cesium tungsten bronze powder is an inorganic nano material with good effect on near-infrared absorption. And it also has the characteristics of uniform particles and good dispersion. More specifically, cesium tungsten bronze dingal nanoparticles have strong absorption in the near-infrared region (wavelength 800-1200nm), and high transmittance in the visible region (wavelength 380-780nm); and infrared absorption at 950nm can reach more than 90%, while the visible light transmittance at 550nm is over 70%. Therefore, nowadays, transparent heat insulation coatings, transparent heat insulating films, transparent thermal insulating window films, building coatings, and automotive films are increasingly used as such heat insulating materials – cesium tungsten bronze.
