Yellow tungsten oxide nanopowder may be used to prepare a new type of heat-insulating energy-saving film, which is environmentally-friendly of high transparency and a smooth surface. Also, such thermal insulating film has the characteristics of high strength, high toughness, high hardness, high temperature resistance, waterproofing, fireproofing and anti-fog properties. Besides, the smart film of tungsten oxide nanoparticles also has the functions and characteristics of explosion-proof film, showing as below:

Tungsten oxide nanopowder may be used to prepare a heat-insulating energy-saving film. Such smart film can reduce the energy consumption of indoor air-conditioning by reducing the heat in the sunlight entering the room (shielding infrared rays). And it can also reduce the energy consumption of heating equipment by reducing indoor heat loss to achieve the effect of reducing conservation.

Tungsten trioxide nanopowder may be used to prepare a transparent environmentally-friendly building film – a heat-insulating energy-saving film. The prepared smart film has excellent heat insulation and heat preservation characteristics so that it can be applied to the glass curtain walls, large glass windows, balcony floor-to-ceiling windows, French windows, balcony windows and many other places.

WO3 may be used to prepare a heat-insulating energy-saving film with the characteristics of high transparency, high light transmission, high heat insulation, high heat preservation and anti-glare. So, such transparent thermal insulating glass film has been highly praised in the industry. The WO3 nano particles can be prepared into a building thermal insulation film or a car heat insulation film.