Cesium tungsten oxide nano powder may be used to prepare a new type of thermal insulation coating. And the obtained Cs0.32WO3 coating has high transparency and high near infrared shielding performance. In addition, experts found that Cs0.32WO3 transparent heat insulating glass has a low light reflectance in the 250-2500nm band. In this regard, experts say that this indicates that the near-infrared shielding capability of Cs0.32WO3 powder is based on absorption rather than reflection.
In order to test the new coating, the expert dispersed the coating by a blending method, mixed with a specific sol, and spin-coated on a glass substrate. Experts have found that the cesium tungsten oxide coating is uniformly and densely attached to the glass substrate. And the coating thickness of the observation area is uniform. The interface between the film layer and the glass is clear and flat. And there are no obvious cracks, voids or voids at the interface, indicating that the bonding strength between the glass and the film layer is excellent.
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