
Blue tungsten oxide powder may be applied for manufacturing thermal insulation masterbatch so that it has excellent dispersity. In other words, the masterbatch will be uniformly dispersed in the product. And there will be no debasement of quality. Effect of Calcing Temperature on Morphology of Blue Tungsten Oxide Ammonium paratungstate (APT) was used as raw material to prepare blue tungsten oxide by calcing under hydrogen atmosphere. Calcination is performed at a temperature range of 350~550°C. And the prepared blue tungsten…