Ammonium metatungstate may be used to prepare cesium tungsten bronze thermal insulation masterbatch, and thus be applied to the preparation of thermal insulation film, and finally be applied to architectural glass. As you may have known, the transparent heat-insulating film prepared from such nanomaterials has high transparency and high heat-insulating properties. And there are also data showing that, in general, the transparent heat-insulating film of cesium tungsten bronze nanoparticles can have a visible light transmittance of more than 70%. And its infrared blocking rate can be greater than 90%.
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In addition, experts have also found that transparent thermal insulation film containing transparent heat insulation material MxWO3yAy is compared with transparent heat-insulation film which generally contains undoped tungsten oxide or tungsten oxide doped with metal ions, the thermal insulation performance can be improved under similar visible light transmittance, and the increased infrared ray shielding rate is about 6-10%, so it can meet the requirements of high visible light transmittance, high thermal insulation performance and high UV shielding performance.
