Cs0.32WO3 nanoparticles, or cesium tungsten bronze nanoparticles, may be said to be a type of transparent thermal insulation nanopowder as its products have high heat insulating performance with high transparency. Since the performance of the raw material cesium tungsten bronze nanopowder will directly affect its application, it is necessary to conduct relative research on the raw material. For example, the experts prepared the Cs0.32WO3 powder by hydrothermal treatment at different HF concentrations. And they also used the prepared Cs0.32WO3 powder to prepare a thermal insulation coating.
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From the visible-near-infrared light transmission spectra of coatings prepared from different HF concentrations by hydrothermal synthesis, they drew a conclusion that, under the conditions of 1mol/L acetic acid and different n(W):n(F) (HF concentrations), Cs0.32WO3 powder prepared showed good transparent heat insulation performance. And the maximum visible light transmittance was above 60%. In addition, the powder synthesized under the condition of n (W): n (F) =1:0.45 exhibited the best near-infrared shielding performance. And the transmittance at 1100nm was only 33.45%.
