TIAN Peipei,NIU Zongwei*,LIU Kefeng,et al.Effect of Current Density on Wettability of Superhydrophobic Ni-MoS2-Al2O3 Composite Coating[J].Plating & Finishing,2021,(10):14-20.[doi:10.3969/j.issn.1001-3849.2021.10.003]
电流密度对超疏水Ni-MoS2-Al2O3复合镀层润湿性的影响
- Title:
- Effect of Current Density on Wettability of Superhydrophobic Ni-MoS2-Al2O3 Composite Coating
- 文献标志码:
- A
- 摘要:
- 针对腐蚀介质对不锈钢表面的点蚀问题，以304L不锈钢为基体，通过复合电沉积方法制备超疏水Ni-MoS2-Al2O3复合镀层，探究不同电流密度对表面形貌、元素含量和润湿性的影响，并与纯镍涂层进行比较。结果表明：当加入MoS2和Al2O3颗粒后，镍的成核过程发生变化，镀层表面含有大量团簇状的微纳米球凸起。在电流密度为8 A/dm2的实验条件下，经过硬脂酸乙醇溶液改性后，接触角的最大值为159.6 °，具有良好的疏水性、低附着力和自清洁性。且镀层中MoS2和Al2O3颗粒含量最高，分别为5.6 %和7.1 %。
- Abstract:
- In order to solve the pitting corrosion problem of stainless steel in corrosive medium, superhydrophobic Ni-MoS2-Al2O3 composite coating was prepared by composite electrodeposition on 304L stainless steels. The effects of different current density on the surface morphology, element content and wettability were explored and compared with that of pure nickel coating. The results showed that the nucleation process of nickel changed with the addition of MoS2 and Al2O3 particles, and the surface of the coating was composed of clusters of micro and nano spheres. The contact angle reached 159.6 ° at the current density of 8 A/dm2 after the coating was modified by stearic acid ethanol solution. And the coating had good hydrophobicity, low adhesion and self-cleaning. The contents of MoS2 and Al2O3 particles in the coating were the highest, which were 5.6 % and 7.1 %, respectively.
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备注/Memo
收稿日期： 2020-07-22；修回日期： 2020-10-21
作者简介： 田佩佩（1995—），女，硕士研究生，email：tpp15615633536@163.com
通信作者： 牛宗伟，email：niuzongwei@sdut.edu.cn
基金项目： 国家自然科学基金资助项目（51775321）；山东省自然科学基金资助项目（ZR2015EM053）；山东理工大学黄河三角洲研究院创新研究基金资助项目