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Long-term performance of high-reflectivity exterior panels

机译：高反射率外部面板的长期性能

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Paint performance was assessed over time with respect to surface contamination and degradation of reflectivity through environmental exposure tests. Test panels were coated with high-reflectivity or conventional paints. One set of test panels was coated with high-reflectivity paint on site or in-factory at the manufacturing stage by a newly developed heat curing paint method. Following environmental exposure, this heat curing paint method was evaluated for its long-term performance in thermal conditioning, and durability, as well as for possible performance enhancement with the addition of a photocatalyst. Solar reflectivity of the panels was degraded by exposure to ultraviolet light, adhesion of airborne contaminants, and exposure to high temperatures and precipitation. Newly developed high-reflectivity heat curing paint was just as durable as conventional heat curing paint. In addition, panels coated with a photocatalyst in-factory achieved a high level of solar reflectivity for a longer period compared to panels coated with conventional paint in-factory and high-reflectivity paint on site.
机译：通过环境暴露测试，随时间推移评估了涂料性能的表面污染和反射率下降。测试面板涂有高反射率或常规涂料。一组测试面板在生产阶段通过新开发的热固化涂料方法在现场或工厂内涂有高反射率涂料。在环境暴露后，评估了这种热固化涂料方法的长期热调节性能，耐久性以及添加光催化剂后可能提高的性能。暴露于紫外线，空气中污染物的附着以及暴露于高温和沉淀下会使面板的太阳反射率降低。新开发的高反射率热固化涂料与常规热固化涂料一样耐用。此外，与现场涂有常规涂料的工厂和高反射率涂料相比，涂有光催化剂的工厂所获得的面板能在更长的时间内达到较高的太阳反射率。

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