Cs0.33WO3 particles may be used to prepare a new type of thermal insulation masterbatch, which is a nano inorganic transparent color masterbatch with the characteristics of high heat insulation, high definition, high transparency, color brightness, environmental protection and energy conservation. The effective component of the environmentally-friendly color masterbatch is Cs0.33WO3 nanoparticles, that is, nano cesium doped tungsten oxide powder or nano cesium tungsten bronze powder.
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Wherein, the nanopowder of the heat-insulating color masterbatch has a solid content of 4-10%, a dispersed particle diameter of less than 60nm, a temperature resistance of 400°C or more, a light resistance of 8 or more, a finished haze of less than 1%, good weather resistance (QSUN 1200h), and the color change of less than 0.8. That is to say, masterbatch of nano particles size cesium tungsten bronze may be applied to the field of high-transparency plastic coloring. And such masterbatch has certain color selectivity while achieving a clear and transparent product.
