Nano grain size cesium tungsten oxide may be used to prepare transparent thermal insulation dispersion liquid. The obtained blue-black dispersion liquid may be used for producing heat insulating materials such as building film and automobile film with good heat insulation effect. According to experts, it requires the raw material cesium tungsten oxide nanoparticles, namely cesium tungsten bronze nanoparticles, to have good dispersion stability. If the nanoparticles are agglomerated, how to do? The nanoparticles are subjected to ultrasonic dispersion treatment.
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What is ultrasonic dispersion? Ultrasonic dispersion is the process that using local high temperature, high pressure or strong shock wave and micro jet generated during ultrasonic cavitation to greatly weaken the nano-effect energy between nanoparticles, and to effectively prevent the nanoparticles from agglomerating. And then it will be fully dispersed. Similarly, when dispersion occurs, the thermal energy and mechanical energy increase, which in turn leads to further agglomeration of the nanoparticles. Therefore, ultrasonic dispersion of nanomaterials has the most suitable process conditions.
