Cesium Tungstate Nanopowder Applied for Thermal Insulation Film

Cesium tungstate nanopowder is an inorganic nano-powder that has the best absorption capacity for near-infrared, which may be used to prepare thermal insulation film and be widely used in many fields such as construction and industry. In this regard, the expert proposed a preparing method of nano cesium tungstate powder, which has the advantages of simple operation, including the following steps:

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1.0 The reaction amount of ammonium metatungstate and cesium nitrate is dissolved in deionized water, the solution is dried to obtain a powder, and the obtained powder is further pulverized to obtain a mixed powder of tungsten and cesium;

2.0 Add tungsten and cesium mixed powder to the reaction kettle, and add sorbic acid thereto, the mass of sorbic acid is 2-4 times of the mass of the mixed powder of tungsten and cesium;

3.0 The reaction product in the step 2.0 is separated and washed with deionized water, dried in a common oven, and pulverized by a jet mill to obtain a nano cesium tungstate powder.