Nano grain size cesium tungsten oxide may be applied for producing heat-insulating film or heat-insulating coating and thus be applied in automotive glass to obtain heat insulating window glass. The obtained glass may be used for heat insulation and ultraviolet light isolation, thereby achieving the purpose of improving human comfort and energy conservation. It is well known that although ultraviolet light accounts for only 3% of sunlight, it still causes fading of articles and aging of plastic rubber parts. Moreover, excessive ultraviolet radiation can also induce cancer in human skin.
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In addition, human studies have shown that exposure to UVB inhibits the immune response, and the importance of these immune responses to infectious diseases is not well understood. However, in some areas of the world where infectious diseases have a great impact on human health and people with impaired immune ding, increased UVB radiation has a considerable impact on the suppression of immune response. Therefore, high quality automotive heat insulation film is necessary. According to experts, cesium tungsten bronze heat insulation film can block more than 99% of ultraviolet rays. In other words, it not only can effectively prevent people in the car from being burnt by excessive ultraviolet radiation, but also protect the interiors of the car from being sunburned.
