Nano particle size cesium tungsten oxide, or nano particle size cesium tungsten bronze, or Cs0.33WO3 nanoparticles, may be used to prepare thermal insulation dispersion. And the obtained dispersion may be used to produce Cs0.33WO3 coating, which may be applied to architectural glass. Some experts compared the near-infrared shielding properties of Cs0.33WO3 coating with other transparent heat insulating coatings and LOW-E glass on the market.
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Experts used the highest transmission of the above-mentioned heat insulating material to minus their transmission at 1100nm to obtain Δt% to compare their performance respectively. The higher the highest transmittance, the lower the transmittance at 1100nm. In other words, the greater the ΔT%, the better the transparent heat insulation performance. They found that the △T% values of the two transparent heat-insulating coatings on the market were 33.5% and 36%, respectively, and the △T% value of the Cs0.33WO3 coating was 38%, which was compatible with the two transparent heat-insulating coatings on the market. Their comprehensive performance is close with excellent transparent heat insulation performance. LOW-E glass also has excellent transparent heat insulation performance, but the high preparation cost is the main reason that restricts its wide application.
