Nano cesium tungsten oxide powder is an excellent near-infrared shielding material, which is extremely useful in the field of a new generation of thermal insulation window film. Cesium tungsten oxide, also known as cesium tungsten bronze, is Cesium Tungstate in English, and its chemical formula is CsxWO4. Light-to-heat conversion effect and other characteristics.
Experiments show that nano-CsxWO4 powder SS-CT20 is an inorganic nano-material with good near-infrared absorption effect. The infrared absorption at 950nm can reach more than 90%, and the visible light transmittance at 550nm can reach more than 70%. However, if cesium tungsten bronze nanomaterials are simply used as additives for thermal insulation window films, their functions will still be limited. Therefore, manufacturers often compound CsxWO4 with ATO (antimony tin oxide), and add it to the coating after being dispersed into a stable nano-slurry, so that a transparent heat-insulating window film with transparent infrared blocking can be made.
The purity of tin antimony oxide can reach 99.95%, the specific surface area is between 45-75㎡/g, the bulk density is about 1.01g/cm, the primary particle size is 10-15nm, and the secondary particle size is 50-60nm. Absorbs infrared rays. In addition, ATO also has good conductivity, transparency and durability. In terms of transparency: ATO nano-ultra-power particles have extremely weak absorption rate for visible light (380nm-780nm), and are composed of particles that are difficult to scatter visible light, so they have high transparency; in terms of durability, chemically stable ATO has little change in physical properties caused by external environments such as heat and humidity, so it can maintain permanent electrical conductivity.
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