The promotion and application of energy-saving technologies have reached a consensus in the world. Many countries have successively introduced policies. A large proportion of building energy consumption is lost through glass doors and windows. Similarly, in the hot summer, the sun shines through the glass of the car, making the driver and passengers unbearable, accelerating the aging of the vehicle interior, and greatly increasing fuel consumption, emissions, and damaging the environment. Therefore, it is necessary to find a glass insulation which is both transparent and heat-insulating.

      Cs0.33WO3 / Cesium Tungsten Bronze is an inorganic nano material with good near-infrared absorption effect. It has uniform particles, good dispersion, strong light transmission, good near-infrared shielding performance, high transparency, and it’s environmental friendly. Hence stand out from other traditional transparent insulation materials. It is a new functional material with strong absorption in the near-infrared region (wavelength 800-1200 nm) and high transmittance in the visible region (wavelength 380-780 nm).

Name: Cesium Tungsten Bronze

CAS No.: 189619-69-0

Molecular formula: Cs0.33WO3

Molecular weight: 276

Appearance: dark blue powder

Particle size: 80-100nm, 100-200nm

      At the same time, as a new automotive glass insulation agent, nano-cerium oxide tungsten has the best near-infrared absorption characteristics. Generally, adding 2 g per square meter of coating can achieve an infrared blocking rate of more than 90% at 950 nm, and achieve more than 70% visible light transmittance.

      The thermal insulation agent has been widely recognized by many glass manufacturers. This kind of thermal insulation agent is used for the production of coated thermal insulation glass, laminated insulation glass, which can significantly improve the comfort of the human body and save energy. .

      Nano cesium Tungsten Bronze CS0.33WO3 can be said to be a transparent heat-insulating nano-powder. It should be noted that it is not really "transparent" but a dark blue powder. "Transparent" mainly means that the heat-insulating dispersion prepared by using Cesium Tungsten Bronze, the heat-insulating film, and the heat-insulating paint exhibit high transparency.

      Experts say that in the production of thermal insulation coatings, it is necessary to use film-forming materials, such as acrylic resin. Acrylic resin has excellent color, good light and weather resistance, and does not decompose or yellow when exposed to ultraviolet radiation. It retains light and color and maintains its 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 urethane acrylate water-based resin as film-forming material, Nano cesium Tungsten bronze as heat-insulating particle to prepare transparent heat-insulating coating, and applied it to architectural glass. The research shows that the transmittance of the coating in the visible light region is about 75%.