Cesium Tungsten Bronze Applied for Window Thermal-insulation Film

Cesium tungsten bronze is mainly applied for preparing window thermal-insulation film. While do you know what data indicators do people care about most about such a heat insulation film? The visible light transmission properties, heat shielding performance and weather resistance.

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For the weather resistance, some experts use a xenon lamp to continuously irradiate the window thermal-insulation film of cesium tungsten bronze. After 72 hours, the appearance of the thermal insulation film does not change significantly, indicating that the raw material cesium tungsten bronze nanopowder has good weather resistance. In addition, the experts also immersed the cesium tungsten bronze thermal insulation film in hot water at 60 °C for 168 hours (7d). The near-infrared shielding rate of the thermal insulation film was only reduced by 1.8%. You know, the ambient temperature and humidity are much lower than those abovementioned during daily use. In other words, such a transparent heat insulation film has better humidity and weather resistance. It is estimated that the service life of this type of thermal insulation film is about 20 years, which is longer than that of Low-E glass of about 10 years.

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