Nano grain size cesium tungsten oxide may be said to be a transparent thermal insulation nanopowder. What should be noted is that the cesium tungsten bronze nanopowder is not really "transparent" but a dark blue powder. "Transparent" mainly means that the heat-insulating dispersion, heat-insulating film, and heat-insulating coating prepared by using cesium tungsten bronze as raw material exhibit high transparency.
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Experts say that in the production process of thermal insulation coatings, it is necessary to use film-forming materials, such as acrylic resin. Acrylic resin has excellent colour and lustre, good light and weather resistance. And it does not decompose under UV-resistant radiation. Also, it can retain light and preserve color, that is, it can maintain the original color for a long time. Acrylic resins are often used in combination with other resins as film-forming materials for transparent thermal insulation coatings. Some experts use polyurethane acrylate water-based resin as film-forming material, nano cesium tungsten bronze as heat-insulating particles to prepare transparent heat-insulating coating, and applied it to architectural glass. The research shows that the coating has a transmittance of about 75% in the visible light region.
