镍基超疏水表面的制备及其在海洋腐蚀防护中的应用  

Fabrication of Nickel-base Super-hydrophobic Surface and Its Application to Marine Corrosion Protection

作　　者：李天平 王鹏[1] 张盾[1] 

机构地区：[1]中国科学院海洋环境腐蚀与生物污损重点实验室中国科学院海洋研究所,青岛266071 [2]中国科学院大学,北京100039

出　　处：《腐蚀与防护》2017年第9期697-701,共5页Corrosion & Protection

基　　金：国家重点基础研究发展计划(2014CB643304);国家自然科学基金项目(41576079)

摘　　要：采用电化学沉积-表面修饰两步法在金属铜表面制备了镍基仿荷叶超疏水表面,采用扫描电子显微镜、X-射线衍射、X-射线光电子能谱、接触角测量仪等测试手段表征了所制备膜层的微观形貌、组成及润湿性,并基于Cassie模型理论分析了表面的润湿性与微观形貌间的相关性。在此基础上,采用电化学测试手段评价了所制备镍基超疏水膜在3.5%NaCl溶液中的腐蚀防护性能。结果表明:镍基超疏水膜可有效抑制金属基体的腐蚀过程,并提出了相应的腐蚀防护机制。Nickel-base super-hydrophobic layer was fabricated on copper surface with two-step procedure of electrodeposition and surface modification, The micro morphology, composition and wettahility of the as-fabricated layer were characterized with scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and water contact angle meter as well. The relationship between micro-morphology and wettability was studied based on the Cassie model. The corrosion protection performance of super-hydrophobic surface was evaluated with polarization curve. It was proven that the as-fabricated super-hydrophobic surface could effectively protect the underlying copper. The corrosion protection mechanism of super-hydrophobic surface was proposed based on the electrochemical measurement results.

关 键 词：海洋环境 腐蚀 仿生超疏水表面 电化学沉积 

分 类 号：TG174[金属学及工艺—金属表面处理]