Cs0.33WO3 Applied for Transparent Heat-insulation Film

Cs0.33WO3 for preparation of transparent heat-insulation film is also called cesium tungsten bronze, which has spectral selectivity in the near-infrared region. According to the experts, the Cs0.33WO3 nano particles can be prepared via a stirred bead milling process using high-performance batch-type stirred bead mill.

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For the typical stirred bead milling process, Cs0.33WO3 coarse powder (10 wt.%) was added to the aqueous solution of potassium hydroxide at pH 8, and then the dispersion was put into the stirred bead mill. An agitation speed of 2,400 rpm was used to exert both shearing and imparting forces on the Cs0.33WO3 coarse powder and was run for different times. Samples were taken at various intervals of grinding time for particle size analysis. The filling ratio of the mill chambers by grinding beads was 60 vol.%. The mill was operated at a constant temperature of 20°C. Wherein, the mill consists of a rotor, a mill chamber, and grinding beads. The rotor and mill chamber are made of highly wear-resistant materials: sintered silicon carbide. The mill chamber is cooled with water and has a net grinding charmer volume of 350 mL. The grinding beads are fluidized by the rotor in the mill chamber as the grinding medium.

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