Cesium tungstate powder for preparation of nano heat insulating coating can be Cs0.33WO3 nano powder with high near-infrared (NIR) shielding ability. While due to high photothermal conversion efficiency of Cs0.33WO3, the absorbed solar energy may overheat the window glasses, decreasing their transparent heat-insulation performance. To solve this problem, the experts design a new composite window by integrating Cs0.33WO3 with paraffin wax (a phase change material).
More details, please visit:
http://cesium-tungsten-bronze.com/index.html
In the composite window, the hexagonal-phase Cs0.33WO3 is prepared by a solid-state reaction method, and then coated onto float glass as Cs0.33WO3-SiO2 composite film via a sol-gel process. Afterwards, a double-plane window consisting of a float glass and a Cs0.33WO3-SiO2 coated glass is filled by molten commercial paraffin wax to obtain the paraffin wax-Cs0.33WO3 composite window. The composite window is expected to improve energy efficiency of buildings. And it is also known as an energy-saving window with high transparency and UV resistance.
