Violet Tungsten Oxide Nanoparticles Applied for Nano Transparent Thermal Insulation Coating

Violet tungsten oxide nanoparticles for nano transparent thermal insulation coating can be synthesized in one step by a solution method with a short reaction time and a low reaction initiation temperature. Moreover, since a large amount of gas is generated during the reaction, the sufficient contact with the air is hindered, so the product of violet tungsten oxide phase is relatively simple to provide favorable conditions for the subsequent utilization of the powder.

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The preparation of nano particle size violet tungsten oxide by solution method solves the problem of coarse grain size of violet tungsten oxide powder prepared by calcination method in the conventional rotary furnace. The solution method is superior to other methods in preparing nano violet tungsten oxide powder, which has the advantages of high efficiency, low cost and high raw material powder utilization rate. That is to say, the method for preparing nano violet tungsten oxide powder belongs to the technical field of advanced powder metallurgy preparation. The obtained nano violet tungsten oxide powder is characterized with a diameter of 20nm to 200nm, a length of 0.5μm to 10μm, and an aspect ratio of 5 to 300.

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