Cesium Tungsten Oxide Applied for Heat Insulation Window Film

Cesium tungsten oxide for preparing heat insulation window film is Cs0.32WO3 nano powder as it has excellent near-infrared region (NIR) absorbing ability. And these thin films are transparent for applying to buildings and autos. Well, Cs0.32WO3 nano particles can also be incorporated in the textiles to improve the heat utilization efficiency of solar energy.

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It is noteworthy that the smart textile possesses the high encapsulation efficiency of 54.3% (latent heat of 60.31 J/g) and shows good stability because of almost no change of latent heat for the smart textiles after 500 heating-cooling cycles. In this process, phase change materials (PCMs) paraffin wax (PW) are important for the development of rational material structure design for thermo-regulated smart textiles. And a material structure with high-performance in overcoming leakage of PW is achieved by coaxial electrospinning technique resulting from core-sheath structured smart textiles with PW as core layer and polyacrylonitrile (PAN) as sheath layer.

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