Cesium tungsten bronze for transparent heat-insulation film can be prepared by a solvothermal liquid phase process in a 1500L reaction kettle. And the thermal insulation thin film prepared shows excellent near-infrared absorption characteristics, so it is often used to architectural glass or automotive glass. Well, do you know what is high-quality heat insulation film?
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According to the experts, the industry's general view on high-quality heat insulation films is that under the premise of visible light transmittance of 550nm at 70%, the shielding rate at 950nm should be above 90%. Therefore, the transparent heat-insulation film of cesium tungsten bronze is high-quality heat insulation film that has better transparent thermal insulation properties, as its visible light transmittance and near-infrared shielding rate are 71% and 90.8%, respectively. In addition, the haze of the thermal insulation film is 0.5%, which meets the requirements of optical grade films.