Tungsten Oxide Nanopowder Applied for Nano Transparent Heat Insulating Glass Coating

Tungsten oxide nanopowder applied for producing nano transparent heat insulating glass coating is a light yellow nano powder - yellow tungsten oxide nano particles. As the light intensity changes, the color and transparency of the smart material changes, and the change is reversible. Therefore, yellow tungsten oxide can be prepared into a slurry (dispersion) or a plastic masterbatch for the development of smart energy-saving products, wherein the dispersion can be used to prepare a heat insulating coating.

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This is because the yellow tungsten oxide nano powder is a photochromic heat insulating nano powder. The primary particle diameter is 40nm. The specific surface area is 30-50m2/g. The bulk density is less than or equal to 0.9g/cm3. The tap density is less than or equal to 1.3g/cm3 (Scott method). And the color changes from light yellow to blue black, which is reversible. Therefore, the heat insulation material of tungsten trioxide nano particles is more and more widely applied to building glass with wider application prospect.

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