Cesium Tungsten Bronze Nanopowder Applied for Office Thermal Insulating Film

With the promotion and application of office thermal insulating film, more and more experts and scholars have begun to pay attention to cesium tungsten bronze nanopowder - a new type of environmentally friendly functional material with excellent near-infrared shielding performance. For example, they began to pay attention to the question - how to prepare cesium tungsten bronze nanoparticles?

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The experts introduced a preparation method of cesium tungsten bronze nanopowder for office thermal insulating film, and the preparation steps are shown as following as:

Step One: Weigh the cesium chloride and ammonium tungstate according to the atomic ratio of 0.30-0.32, placed in hydrogen peroxide to dissolve it, and stirred at 60-80 °C to obtain the suspension, and then the prepared suspension was dried at 40-80 °C to obtain the cesium-tungsten mixture precursor.

Step Two: Mix the precursor with a certain amount of ethylene glycol, then ground in a ball mill for 10 to 60 minutes; wherein the solvent is used in an amount of 0.5 to 1.5 times the mass of the precursor powder.

Step Three: The prepared substance is placed in a closed reaction vessel equipped with a stirring device for heat treatment at a temperature of 150 to 300 °C for 2 to 10 hours.

Step Four: Separate the above-mentioned materials and washing them with ethanol and deionized water, and then drying in an oven at 40-80 °C to obtain  cesium tungsten bronze nano powder.

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