Cs0.32WO3 particles are heat-insulating particles with high visible light transmittance and near-infrared shielding rate that may be used as heat-insulating materials for producing thermal insulation coatings and thermal insulation films, and thus be applied to thermal insulating glass. While some experts said that for coatings prepared using such new thermal insulating particles as raw material, it is not comprehensive to analyze the visible light (400-780nm) transmittance or near-infrared transmittance.
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Therefore, the experts used the ratio k of the transmittance in the visible light band maximum value Tmax to the transmittance T1100nm at 1100nm as a parameter for evaluating the transparent heat insulating property of the coating layer. They said that k=Tmax/T1100nm is easy to see the results. The larger the k is, the better the transparent thermal insulation performance of the coating is. In other words, the coating of cesium tungsten bronze nano particles has high visible light transmittance and the near-infrared shielding rate.
