WO3 nanoparticles can be used to prepare an environmentally-friendly transparent heat insulation coating, which is mainly applied to architectural glass such as glass curtain wall to achieve the effects of high heat insulation and energy conservation, and improve comfort, safety and explosion-proof property.

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.

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”.

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.

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%.

A heat-insulating energy-saving film of yellow tungsten oxide nanoparticles is made of environmentally friendly materials so that it does not contain toxic or hazardous substances. And therefore the prepared transparent heat-insulating film is more and more widely applied to automobile glass, architectural glass or agricultural greenhouses. In other words, these heat-insulating films can be automobile films, architectural films, and agricultural films.

A heat-insulating energy-saving film of tungsten oxide nanoparticles is a light blue smart film with high transparency, whose visible light transmittance is over 80% to meet the requirements of architectural lighting. Such heat-insulating film has high definition with a haze of less than 0.3%.

A heat-insulating energy-saving film of tungsten trioxide nanoparticles is a new type of environmentally-friendly and heat-insulating smart film, which has the advantages of no fading, high transparency, high definition, high heat insulation rate, anti-glare and good privacy. So, how to use thermal insulation film?

Tungsten oxide nanoparticles can be used to prepare a variety of transparent thermal insulation materials, such as thermal insulation films, thermal insulation dispersions and thermal insulation coatings. Regardless of the type of heat insulation material, transparent heat insulation glass can be obtained by applying these materials to building glass. And the obtained heat-insulating glass can absorb near-infrared rays and shield ultraviolet rays. Also, such smart glass is environmentally friendly and safe. In means that the glass will not pollute the environment without toxic substances.

The reason why tungsten trioxide nanoparticles can be used to obtain transparent heat insulation glass is because WO3 nano particles have special optical absorption properties. Some experts used chemical precipitation method to prepare nano tungsten trioxide powder, and reduced it with hydrogen-nitrogen mixed gas. Then a series of studies were carried out to find that: