Ammonium Metatungstate Nanoparticles Applied for Infrared Ultraviolet Shielding Material

AMT is the abbreviation of ammonium metatungstate nanoparticles. AMT can be used to prepare nano particle size cesium tungsten bronze, namely CsxWO3. So, why do people say that ammonium metatungstate can be used to prepare transparent infrared ultraviolet shielding material such as transparent building heat insulation film and thermal insulation dispersion?

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This is because the raw material ammonium metatungstate is a near-infrared short-wave nano shielding material, and the cesium tungsten bronze nano powder prepared by such material is an important raw material for producing transparent heat insulating materials. According to experts, CsxWO3 is a high concentration of free carriers, which not only has a high transmittance in the visible region, but also has a strong shielding effect in the near-infrared region. As you may have known, the heat in sunlight is mainly concentrated in the two bands of visible light and near-infrared light. Therefore, the cesium tungsten bronze transparent thermal insulation material not only ensures good visible light transmission, but also blocks most of the heat brought by the near-infrared light.

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