复合流体涂层用于Cu金属的防腐蚀研究  

Compositing fluid infused surface on Cu for corrosion inhibition

作　　者：刘井坤 欧阳义波 段体岗[2] 马伯江[1] 张燕[3] 胡术刚[3] Liu Jingkun;Ouyang Yibo;Duan Tigang;Ma Bojiang;Zhang Yan;Hu Shugang(College of Electromechanical Engineering,Qingdao University of Science and Technology,Qingdao 266061,China;State Key Laboratory for Marine Corrosion and Protection,Luoyang Ship Material Research Institute,Qingdao 266101,China;College of Chemical and Environmental Engineering,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]青岛科技大学机电工程学院,山东青岛266061 [2]中国船舶重工集团公司第七二五研究所海洋腐蚀与防护重点实验室,山东青岛266101 [3]山东科技大学化学与环境工程学院,山东青岛266590

出　　处：《电镀与精饰》2023年第11期46-53,共8页Plating & Finishing

摘　　要：采用电沉积法在纯铜表面制备了树枝状Cu_(2)O,经过正十二硫醇改性制备超疏水涂层,将疏水化的Fe_(3)O_(4)纳米颗粒与油相混合,注入超疏水铜表面,制备复合流体涂层。采用扫描电镜(SEM)、接触角测试仪对涂层不同阶段的形貌结构、润湿性进行了分析,采用扫描开尔文探针(SKP)研究了超疏水涂层、复合流体涂层与纯铜表面的电位变化,采用电化学阻抗谱和极化曲线等方法研究了超疏水涂层、复合流体涂层在大气环境和3.5 wt.%NaCl溶液中的耐腐蚀性能。结果表明,复合流体涂层在3.5 wt.%NaCl溶液中浸泡20 d后,腐蚀电流仍小于超疏水涂层和纯铜的腐蚀电流密度,复合流体涂层具有较好的耐久性和耐腐蚀性。In this paper,dendritic Cu_(2)O structure was prepared on pure copper surface by electrodeposition,and the superhydrophobic coating was prepared by the modification with n-dodecanethiol.The hydrophobized Fe_(3)O_(4) nanoparticles and the oil phase were mixed and infused into the superhydrophobic copper surface to prepare a composite fluid coating.The morphology and wettability of the coating at different stages were analyzed by scanning electron microscope(SEM)and contact angle tester,respectively.The surface potential changes of superhydrophobic coating,composite fluid coating and pure copper were studied by scanning Kelvin probe(SKP).The corrosion resistance of superhydrophobic composite fluid coating in atmospheric environment and 3.5 wt.%NaCl solution was studied by electrochemical impedance spectroscopy and polarization curve.The results showed that the corrosion current of the composite fluid coating was still lower than that of the superhydrophobic coating and pure copper after soaking in 3.5 wt.%NaCl solution for 20 days.The composite fluid coating had good durability and corrosion resistance.

关 键 词：超疏水 铜 复合流体涂层 电沉积 

分 类 号：TQ153.1[化学工程—电化学工业]