Nano tungsten trioxide, or WO3, is a photochromic material, so the explosion-proof heat insulation coating prepared by using nano particle size tungsten trioxide as a functional material will be colored under sunlight (ultraviolet rays). That is to say, the glass to which the photochromic film is applied can play a role in shielding ultraviolet rays. You know, photochromism is a reversible process. So, when tungsten trioxide film is in an oxidizing environment, discoloration occurs.

Nano tungsten trioxide for producing heat-insulating anti-explosion coating is a transition metal oxide, which has attracted much attention because of its excellent photochromic and electrochromic properties. In other words, the heat-insulating anti-explosion coating of nano tungsten trioxide is a photochromic material or an electrochromic material that can be applied to building glasses for energy conservation and safety. And these common glasses will turn into smart glasses with high heat insulation and explosion-proof performance.

Nano tungsten trioxide, one of the transition metal oxides, is more and more widely applied for producing exhibition hall heat insulating glass coating. Such coating is transparent for coating on the glasses of the exhibition halls to form an electrochromic film. And then, these glasses will turn into smart glasses.

Nano tungsten trioxide has strong absorption in the near-infrared light region, so it is often used to prepare a new environmentally friendly material --- hotel heat insulating glass coating. You know, in recent years, people have begun to pay attention to energy and environment issues. According to the experts, in order to reduce the loss of air-conditioning equipment without affecting the visual effect, tungsten oxide materials, as a new type of near-infrared shielding material, have been studied and discussed one after another.