WO3 nano particles, a type of electrochromic materials, may be prepared into heat-insulating energy-saving glass. According to experts, the prepared glass is an electrochromic glass or a smart glass, which can actively adjust the optical properties of glass according to people's wishes, thus realizing the dynamic adjustment of glass lighting and thermal insulating performance.
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http://www.tungsten-powder.com/tungsten-oxide.html
As you may have known, building energy conservation is an important guarantee for China's long-term sustainable development strategy of energy conservation and emission reduction. About 30~50% of the energy consumption in the building is lost through the doors and windows. So, different type of energy-saving glasses are more and more widely used to shield the heat transfer of the building while meeting the building lighting. And therefore, at present, smart glass, especially the smart glass of nano tungsten oxide particles, is known as the new building energy-saving glass in the post-LOW-E era, which is the development direction of building energy-saving glass.