Ammonium Metatungstate Applied for Infrared Ultraviolet Shielding Material

Ammonium metatungstate may be used to prepare infrared ultraviolet shielding material such as thermal insulation coatings of cesium tungsten bronze nanoparticles. After coating the building or automobile glass with the following glass spraying process, the obtained glass will have better performance such as higher heat insulation performance, higher ultraviolet shielding performance, higher visible light transmittance and higher durability. Also, it is easier to construction with excellent privacy protection.

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A Method of Glass Heat Insulation and Radiation Treatment

1.0 Put clean glass in a clean and confined space with inlet and outlet air system. The temperature is controlled at 25-35°C, and the humidity is controlled below 80%;

2.0 Prepare the following spray agent: inorganic nano-ceramic resin 30-50%, near-infrared short-wave nano-barrier material of 5-20% (ammonium metatungstate powder), near-infrared long-wave nano-barrier material of 5-15% (30wt% ITO dispersion or 30wt% ATO dispersion), UV nano-barrier material of 3-10% (tungsten oxide nanopowder), leveling agent of 0.2-0.5%, curing agent of 0.2-1%, solvent balance.

3.0 Place the spray agent in a watering can and set the spray parameters.

4.0 Spray the coating evenly on the glass with a spray gun and then rests the glass until the coating cures. The sprayed glass remained unscratched for 7 days after the surface was cured.

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