Yellow tungsten oxide nanoparticles may be applied to produce heat insulation coating for applying to glass curtain wall. And the tungsten trioxide nanoparticles raw material can be prepared by chemical precipitation method.

The glass curtain wall heat insulation coating of tungsten trioxide nanoparticles can shield the ultraviolet rays in the range of 320nm-460nm. It simultaneously allows the visible light of 440nm-780nm to pass through. In other words, such energy-saving coating does not affect the see-through and lighting effects.

Tungsten oxide nanoparticles are important raw materials for manufacturing glass curtain wall heat insulation coating. Specifically, the nano particle size tungsten oxide is first prepared into heat insulation nano dispersion, and then mixed with a resin to uniformly produce a smart heat-insulating coating. So, the energy saving coating can automatically adjust the heat (IR) transmission according to the change of the ambient temperature, and therefore maximize the optimization of heat distribution to achieve the purpose of “warm winter and cool summer”.

A heat-insulating energy-saving film of WO3 nanoparticles is a light blue smart film with good transparency and high definition - a light transmittance of 88% and a haze of less than or equal to 0.8%.