Ammonium Metatungstate Powder Applied for Thermal Insulation Paper

Ammonium metatungstate powder can be used for preparing cesium tungsten bronze nanoparticles, and the obtained nano powder can be used for producing a transparent thermal insulation paper, that is, a heat insulating film, for architectural glass, due to its excellent optical properties. Experts said that to obtain a heat-insulating film, it is necessary to prepare a transparent heat-insulating raw material - cesium tungsten bronze powder. So, they proposed a preparation process of cesium tungsten bronze powder with a particle size of less than 100nm.

More details, please visit:
http://www.ammonium-metatungstate.com/

The surface of the prepared cesium tungsten bronze nano powder may be added with a small amount of inorganic metal oxide such as silicon oxide and/or titanium oxide and/or aluminum oxide and/or zirconia during the grinding process. These materials coat the outer surface of the powder to protect its surface. And they can avoid particle aggregation or changes in surface properties. Also, a small amount of silane, titanium alkane or organometallic groups may be added to modify the surface of such heat insulating powder to increase the compatibility of the powder with organic solvents or resins. The obtained cesium tungsten bronze powder can be used alone or in combination with a binder. For example, the cesium tungsten bronze is dispersed in a solvent with a suitable dispersing agent to prepare a nano transparent heat-insulating dispersion, which is thus applied to the transparent substrate by wet coating, and dried to produce a transparent heat-insulating film.

• < Prev
• Next >