Cs0.32WO3 Particles Applied for Thermal Insulation Masterbatch

Cs0.32WO3 particles for thermal insulation masterbatch can be prepared by hydrothermal treatment. The raw material Cs0.32WO3 nano particles used is cesium tungsten bronze nano powder. So, how to conduct hydrothermal treatment for Cs0.32WO3 powder?

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3g of Cs0.32WO3 powder with poor near-infrared shielding performance was dispersed in deionized water by ball milling, then added with appropriate amount of acetic acid, water, hydrofluoric acid, and stirred uniformly to obtain Cs0.32WO3 powder dispersion for hydrothermal treatment. In order to analyze the effect of acetic acid concentration on Cs0.32WO3 powder, the concentration of acetic acid in the dispersion was 1, 5, 10 mol/L respectively; to analyze the effect of HF addition on Cs0.32WO3 powder, acetic acid in the dispersion under the premise of a concentration of 1 mol/L, n (W): n (F) in the dispersion was 1:0.15, 1:0.45, 1:0.75, and 1:1, respectively. The dispersion was incubated at 190°C for 24h in a 200mL reactor, and washed with water, alcohol, centrifuged and dried to obtain a pure Cs0.32WO3 powder.

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