Cesium tungstate nanopowder may be applied for preparing thermal insulation dispersion liquid, which is a new type of dispersion that exhibits a clear blue-black liquid appearance. The obtained dispersion liquid has the characteristics of high light transmittance and high infrared blocking property. Specifically, the dispersion liquid of nano grain size cesium tungstate can reach an infrared blocking rate of more than 90% at 950nm and above 95% at 1400nm under a visible light transmittance of 70%.
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According to experts, the dispersion liquid also has low agglomeration and high dispersion characteristics. That is to say, after a long time of storage, it still does not have much agglomeration. In addition, the dispersion has a wide adaptability and can be dispersed not only in a water system but also in various resin systems such as acrylics, polyesters, and silicones. In addition, it has a low fog value, which means that the prepared product is still clear and transparent.