Nano tungsten trioxide may be applied for producing an energy-saving glass, which makes the building glasses have "sunshade" performance and "heat insulation" performance. It is reported that most of the existing buildings of about 50 billion square meters do not use energy-saving glasses, and less than 10% of new buildings use high-performance energy-saving glasses. In this case, building energy consumption will continue to increase if effective measures are not taken.
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From a technical point of view, previously, sunshade performance was achieved by glass coating technology, and heat insulation performance was achieved with Low-e coated glass of hollow or vacuum construction. In recent years, the research and development and production of energy-saving glasses in China have achieved rapid development. Tungsten oxide energy-saving glass is born, which has both properties including heat insulation and heat preservation to block most of the ultraviolet rays. In addition, it also has many excellent properties such as environmental protection. Therefore, tungsten trioxide nano particles have become the new favorite in the field of building energy conservation.
