Tungsten oxide nanoparticles may be used to prepare a new type of heat insulation film for applying to automobiles, which has surface scratch resistance, high heat insulation and UV resistance to shield more than 99% ultraviolet rays, thereby reducing fuel and improving human comfort. And such film has good light transmittance to ensure that the owner's vision is clear.

Tungsten oxide nanoparticles may turn a common window glass into a heat insulating window glass. Specifically, nano particle size tungsten oxide is prepared into a heat insulating film or a heat insulating coating, and then attached to or coated on the glass of vehicle to obtain a thermal insulating glass. In terms of application, this new type of thermal insulation glass can significantly improve the driving environment of the car, while reducing the energy consumption of the air conditioner, thereby achieving energy saving effects.

Tungsten oxide nanoparticles have good near-infrared absorption properties, that is, they can play the role of thermal insulation and achieve the purpose of energy conservation, so they can be used to obtain thermal insulating glass with high transparency and high UV resistance, in form of thermal insulation film or thermal insulation coating. And therefore, you can “see” them in architectural glass, automobile glass, and even airplane porthole.

Tungsten oxide nanoparticles for infrared ultraviolet shielding material can be obtained by a solvothermal method using ethanol as an alcohol solvent, a molar concentration of 15mM, a reaction time of 24h at different temperatures (160°C, 180°C, and 200°C). SEM of tungsten oxide nano particles at different temperatures using ethanol as alcohol solvent is shown below.