Nano Tungsten Oxide Applied for Transparent Heat Insulation Coating

Nano tungsten oxide may be used to prepare a transparent heat insulation coating and thus be applied to architectural glass. It is reported that the thermal insulation effect of the thermal insulation coating is equivalent to that of a 30cm brick wall. The heat insulating coating can shield up to 50%-80% of the heat in the sunlight that may enter the house through the glass windows.

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In summer, when the outdoor temperature is higher than the indoor temperature, the tungsten oxide energy-saving film formed on the glass surface can shield some heat and keep the indoor cooler. In winter, when the outdoor temperature is lower than the indoor temperature, the energy-saving thermal insulation film can prevent the outdoor cold air from entering the room. At the same time, the heat generated in the room is fully retained to prevent from outflow, so that the indoor temperature is not affected by the outdoor temperature. In other words, the thermal insulation coating of nano tungsten trioxide not only has the function of heat insulation, but has the performance of heat preservation.

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