Tungsten Trioxide Applied for Study Thermal Insulating Film

Tungsten trioxide doping with alkali metal element is mainly applied for preparing a study thermal insulating film – a transparent heat-shielding film that can shield against infrared light. The infrared light shielding ability of such a smart film is excellent and the visible light transmission is greater than 70%.

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That is to say, such a transparent heat-shielding film prepared using a simple and low temperature coating process with a low fabrication cost satisfy the requirements of high visible light transmission, high heat shielding ability and high stability. You know, in theory, the lower the transmittance of the thermal insulation film, the better the thermal insulation effect. While such a heat insulation film with low visible light transmission is not suitable for applying to places where put high requirements for daylighting such as study rooms. Therefore, various heat-insulating films with high transparency were developed. The study thermal insulating film of tungsten trioxide is one of them. It is a high-tech thermal insulation film that can realize thermal insulation intelligently according to the change of solar heat.

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