本文针对裸钢板及其涂润滑油的钢板表面进行接触角测试、表面自由能计算,进而研究润滑油对其界面粘合功与接头强度的影响;并在此基础上,分析润滑油对钢板单搭胶接接头在水浴环境中的抗腐蚀性能影响.结果发现:润滑油极大地提高了钢板与胶粘剂间界面结合能中的极性分量,从而略微提高了钢板胶接接头强度,改善了接头失效模式.在水浴环境下,由于扩散到界面处的水分子对氢键的破坏及对极性分子的溶解,接头强度急剧下降,界面失效面积增加.润滑油主要增加了界面结合能中极易被水分子破坏的极性分量,因而对钢板胶接接头水浴环境腐蚀性能影响较小.
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