采用氟碳树脂、固化剂、颜料、溶剂和助剂制备了太阳能背板粘结层用氟碳涂料，研究了氟碳树脂、固化剂的种类以及固化剂中异氰酸根与氟碳树脂中羟基的比例对粘结层性能的影响，结果发现：选用中等羟值的三氟氯乙烯与乙烯基醚的氟碳树脂， HDI三聚体为固化剂，固化剂中异氰酸根与氟碳树脂中羟基的物质的量比为 1∶1，可得综合性能较优的涂层。涂层 PCT 48 h后的附着力仍为 0级，紫外辐射 120 kWh/m2后的黄变为 0.68，与 EVA的粘结力初始为 96 N/cm，双 95湿热老化 10 d后的粘结力为 60 N/cm。
The fluorocarbon coatings for solar backsheet bonding layer were prepared byusing fluorocarbon resin，curing agent，pigments，solvents and additives. The influence of types of fluorocarbon resin and curing agent，and the ratio of isocyanate of curing agent and hydroxylgroups in fluorocarbon resin on the properties of bonding layer were studied. The resultsshowed that when a fluorocarbon resin from chlorotrifluoroethylene and vinyl ether，with a middle hydroxyl value was used as binder，and the HDI trimer was used as curing agent，and the NCO / OH molar ratio was 1∶1，a coating with superior overall performance could beobtained. The adhesion after 48 h PCT test was still 0，the yellowing after UV irradiation at 120 kWh/m2 was 0. 68，the adhesion with EVA was 96 N/cm，and the adhesion with EVA after 10 days of double 95 PCT test was 60 N/cm，and the overall performance was satisfied.
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