Nano grain size cesium tungsten bronze may be used for the preparation of heat insulation coating. The obtained coating material has excellent near-infrared shielding property, and also has a good shielding effect on ultraviolet rays. More importantly, such coating has high visible light transmittance. And thus it may be used for heat insulating glass, such as buildings and automobiles glass. In this regard, how do the beginners test the thermal insulation properties of the coating material?
Firstly, the ultraviolet-visible-near-infrared transmission spectrum of the glass surface coating film is characterized by an ultraviolet-visible spectrophotometer in the range of 300-1100nm to evaluate the visible light transmission and near-infrared shielding properties of the glass film. Secondly, the self-regulating intelligent ding of photochromic or near-infrared shielding light is tested. The glass piece coated with the CsxWO3 film was re-tested for the transmission spectrum of the sample after being irradiated at 750nm for 10min, 30min, etc. to evaluate the photochromic properties and near-infrared shielding properties of the glass film with the change of illumination time.
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