
Nanometer yellow tungsten oxide may be applied for producing thermal insulation masterbatch, wherein the yellow tungsten oxide nanopowder has a solid content of 4-10%, a dispersed particle size of less than 60nm, an optical activity resistance of 8 or more, and a temperature resistance higher than 400 degrees Celsius. Besides, the finished product has a haze of less than 1%. And it has good weather resistance. In addition, its color change is less than 0.8. This heat insulating masterbatch revolutionizes…