Transparent heat insulation glass coating of tungsten oxide nanoparticles is an environmentally friendly heat insulation glass coating of high safety. So, such energy saving coating does not contain toxic and harmful substances such as benzene and aldehyde after curing.

Transparent heat insulation coating of WO3 nanoparticles has good resistance to heat radiation (anti-infrared performance) with high anti-ultraviolet performance. So, such energy saving coating can be applied to architectural glass and other fields through spraying and other coating processes, which solves the disadvantages of traditional thermal insulation coatings with large haze and limited additive amount.

Tungsten oxide nanoparticles for an environmentally-friendly transparent heat insulation coating can be prepared by chemical precipitation method. Specifically, the preparation steps are as follows:

Tungsten trioxide nanoparticles are an important thermal insulation material for the preparation of transparent heat insulation coating. The prepared coating is a new type of environmentally-friendly building glass coating, which is prepared by adding tungsten oxide aqueous nano dispersion with high transparency and semiconductor properties to the resin or other material systems.