As a new type of transition metal compound material, cesium doped tungsten oxide nano particles have excellent near-infrared absorption performance and visible light transmission performance, and are often used to prepare high-quality transparent heat insulation film. Its application range is wide.
The heat insulation film is to achieve the effect of heat insulation and energy saving by means of heat insulation materials. Traditional thermal insulation materials include glass fiber, asbestos, rock wool, silicate, etc., while new thermal insulation materials include aerogel felt, vacuum panels, and transition metal compounds.
The principle of heat insulation: Heat transfer is manifested in three forms in the heat exchange of buildings: conduction heat, convection heat and radiant heat.
After the temperature of the glass surface increases in summer, a large amount of radiant heat will enter the room and cause the temperature to continue to rise, which will cause extremely uncomfortable working and living environments. In the case of not heating the heat insulation material, the propagation route of heat energy: the sun-infrared magnetic waves-heat hits the glass surface to increase the temperature. The glass surface becomes a heat source radiating heat energy. The heat hits the inner surface of the glass to increase the temperature. The inner surface of the glass becomes a heat source and emits heat energy. The indoor ambient temperature continues to rise. In the case of insulation materials, the propagation route of heat energy: the sun infrared magnetic waves heat energy hits the glass surface to increase the temperature, the glass surface It becomes a heat source and emits heat energy. The heat energy hits the insulation material to increase the surface temperature, the heat insulation material has a very low emissivity, and the radiated heat energy is less-the room maintains a comfortable ambient temperature.
Therefore, in recent years, with the advancement of science and technology and the improvement of people's living standards, many users often put a layer of transparent heat insulation film on the glass, which can effectively insulate the glass without affecting the indoor lighting. The transition metal compound cesium doped tungsten oxide powder has become the preferred heat shielding agent today.
