Cesium tungsten bronze nanopowder has excellent near-infrared shielding properties, so it is regarded as the optimum material to prepare a new type of windshield thermal insulating coating. Moreover, the visible light transmittance of the prepared heat insulation coating meets the automotive glass regulations. Some experts used Cs0.32WO3 nanoparticles as raw materials to prepare transparent heat-insulating glass coatings, and explored the dispersion process of Cs0.32WO3 nanopowders. They also studied the effect of Cs0.32WO3 nanopowder addition and coating thickness on the properties of Cs0.32WO3 transparent insulating glass.
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The experts obtained mathematical models related to the optical properties and the addition amount of Cs0.32WO3 nanoparticles and coating thickness through a large number of experiments, and determined that the amount of Cs0.32WO3 added is 6% and the coating thickness is in the range of 4.6-5.1 μm. With excellent near-infrared shielding performance, the near-infrared light shielding ratio of Cs0.32WO3 transparent insulating glass is higher than 89.8%, the ultraviolet light shielding rate is higher than 99.6%, and the visible light transmittance is 71.6%, meeting the automotive glass regulations. In this regard, experts said that at present, the optical characteristics index is leading in the automotive glass industry, so the windshield thermal insulating coating of cesium tungsten bronze nanopowder has a good application prospect in cars. Therefore, cesium tungsten bronze will receive more attention and research.
