通过检测在拉萨和武汉地区户外曝晒的氟碳涂层的界面电化学腐蚀特征、吸水率和耐盐雾腐蚀性，研究不同大气环境对涂层的耐蚀性能的影响。研究表明，氟碳涂层的电化学阻抗性能在拉萨大气环境中下降较为严重，在两地区经过6个月曝晒的涂层的界面电极反应由电化学步骤控制，而经过12个月曝晒的由扩散步骤控制；在拉萨地区曝晒的涂层的孔隙率较武汉地区的大，且随曝晒时间的延长两者的差值也增大；在拉萨地区曝晒后，涂层内部产生相对较多的缺陷，因此涂层阻挡腐蚀性介质（H2O、Cl-）的性能下降较为明显。
Fluorocarbon coating is chose as the coatings researched. And this paper evaluates the results of anti-corrosion of Fluorocarbon coating exposed in different region (Wuhan and Lasa) for 3, 6, 12 months. Several experiments (measuring water absorption rate salt spray test and electrochemical behavior) are done on the coating which was exposured in Wuhan and in Lasa after different time. It is proved that although the latitude of Wuhan approaches to that of Lasa, anti-corrosion of Fluorocarbon coating is greatly affected by different climate. The coating is more severely aged in Lasa than in Wuhan. Accordingly, anti-corrosion of such coating is more badly lost in Lasa than that in Wuhan.
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