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.
出处
《腐蚀与防护》
北大核心
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)
关键词
海洋环境
腐蚀
仿生超疏水表面
电化学沉积
marine environment
corrosion
super-hydrophobic surface
electrochemical deposition
