连峰,王增勇,张会臣

• 1:大连海事大学交通运输装备与海洋工程学院

摘要(Abstract)：

为提高船用铝合金的耐海水腐蚀性能,利用激光在5083船用铝合金表面分别刻蚀点阵、直线、网格3种微结构,采用聚合物基纳米复合材料构建微纳双层结构,制备超疏水船用铝合金表面。采用光学显微镜和扫描电子显微镜表征其形貌;用接触角测量仪测量接触角和滚动角;采用电化学分析方法测试在海水环境中的耐腐蚀性能。结果表明,具有微纳双层结构的超疏水表面符合Cassie状态,且随着微结构间距的增大,接触角减小,滚动角增大,其耐海水腐蚀性能显著增强。间距为100μm的网格微结构表面具有最大的接触角157.8°和最小的滚动角0.57°,可将铝合金的腐蚀阻抗提高2个数量级。

关键词(KeyWords)： 超疏水;铝合金;激光刻蚀;耐腐蚀

Abstract:

Keywords:

基金项目(Foundation): 辽宁省工业攻关计划(2012220006);; 国家自然科学基金(51275064)

作者(Author): 连峰,王增勇,张会臣

DOI: 10.13289/j.issn.1009-6264.2014.12.032

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