采用Ar,O2两种气氛对航空氟硅硫化橡胶(FS6265)表面进行低温等离子体(LTP)处理.用X射线光电子能谱(XPS)分析表面元素,测试表征了静态接触角、表面能及剥离强度;用扫描电子显微镜(SEM)及原子力显微镜(AFM)观察了表面形貌及表面粗糙度.结果表明:经Ar处理后,FS6265表面水接触角从101.5°降到19.0°,表面能从19.3mJ·m-2升高至73.2mJ·m-2;经O2处理后,水接触角降到25.5°,表面能升高至70.6mJ·m-2.SEM及AFM图像显示LTP处理后表面粗糙度增加.LTP处理后材料表面C、F元素含量下降,O元素含量大幅度提高,表面引入C-OH和C=O基团.LTP处理效果的时效性非常明显,FS6265经Ar,O2气氛处理后分别放置12,8h后表面性能的变化基本消失.
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