Nano grain size cesium tungsten bronze may be prepared into transparent heat insulation film for use in heat insulating window glass. Some experts have tested the thermal insulation property of this kind of environmentally friendly thermal insulation material and found that the thermal insulation material has good thermal insulation effect and excellent ultraviolet shielding effect.
The test results show that after 20 minutes of illumination by infrared light, the heat insulation space of the blank window glass (the window glass without heat insulating film) shows a temperature of 80°C, and the temperature of the heat insulating window glass of the heat insulating film of cesium tungsten bronze is 54.8°C, and the temperature difference is 25.2°C. After being irradiated by infrared lamp for 30 minutes, the temperature of the blank window glass heat insulation space is 86.8°C, the temperature of the film window glass in the heat insulation space is 66.2°C, and the temperature difference is 24.6°C. And after 54min, the temperature difference is maintained at 24.8°C. The above film specifically refers to a heat insulating film made of nano grain size cesium tungsten bronze powder.
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