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制备了3种不同类型的光热转换涂层──喷涂高分子涂层、电镀黑铬涂层和物理气相沉积氮氧化钛涂层,测试了涂层的力学性能和光学性能。将不同涂层试样做成平板板芯,装配成平板集热器,测试了3种平板集热器的集热性能。结果表明,物理气相沉积氮氧化钛涂层集热器的集热性能最好,电镀黑铬涂层次之,但静电喷涂高分子涂层集热器在低温使用时性价比更高。
Three different types of photothermal conversion coatings were prepared - spraying polymer coatings, electroplated black chrome coatings and physical vapor deposition titanium oxynitride coatings. The mechanical and optical properties of the coatings were tested. Different coated samples were made into flat core plate, assembled into a flat collector, tested the collector performance of the three kinds of flat collector. The results show that the physical vapor deposition of titanium oxide-coated heat collector has the best heat-collecting performance, followed by electroplated black-chrome coating, but electrostatic spraying of polymer-coated heat collector is more cost-effective when used at low temperature.