溶胶-凝胶法制备超疏水性纳米复合防腐涂层 - 中国腐蚀与防护学报.PDFVIP

第34 卷 第3 期 中国腐蚀与防护学报 Vol.34 No.3 2014 年6 月 Journal of Chinese Society for Corrosion and Protection Jun. 2014 溶胶-凝胶法制备超疏水性纳米复合防腐涂层 尹成勇 李 澄 彭晓燕 王加余 王艳慧 郑顺丽 李 敏 胡 玮 南京航空航天大学材料科学与技术学院 南京 210016 摘要：通过溶胶-凝胶旋涂法在不锈钢基底上制备了具有超疏水性能的介孔碳复合SiO 涂层。通过TEM，SEM 2 及静态接触角、电化学测试技术(Tafel 和EIS) 等对其结构、疏水性能和耐蚀性等进行表征。结果表明：在不锈 钢基底上形成了乳突状形貌，水在涂层表面静态接触角达到163° 。该超疏水性SiO /介孔碳复合涂层具有优良 2 的防腐性能。 关键词：超疏水 溶胶-凝胶 复合涂层 防腐蚀 中图分类号：TG 174.4 文献标识码：A 文章编号：1005-4537(2014)03-0257-08 Performance of Superhydrophobic Nano Complex Anti- corrosion Coating Fabricated by Sol-gel Technique YIN Chengyong, LI Cheng, PENG Xiaoyan, WANG Jiayu, WANG Yanhui, ZHENG Shunli, LI Min, HU Wei College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China Abstract: Superhydrophobic complex coatings of mesoporous carbon/silica on stainless steel were prepared by a sol-gel spin cast method. The morphologies, anticorrosion property and hydrophobic- ity of the coatings were characterizd by means of scanning electron microscopy (SEM) and trans- mission electron microscopy (TEM), electrochemical test technique-Tafel curve and electrochemi- cal impedance spectroscopy, as well as water contact angle measurement (CA) respectively. The coatings exhibited varied surface morphologies with bump-like and nipple-like protrusions on the stainless steel substrate. The coati