平行磁场辅助射流电沉积镍制备疏水表面  

Fabrication of a hydrophobic surface by parallel magnetic field-assisted jet electrodeposition of nickel

作　　者：尚中昇 阿达依·谢尔亚孜旦[1] 周冠霖 SHANG Zhongsheng;ADAYI Xieeryazidan;ZHOU Guanlin(School of Mechanical Engineering,Xinjiang University,Urumqi 830047,China)

机构地区：[1]新疆大学机械工程学院,新疆乌鲁木齐830047

出　　处：《电镀与涂饰》2023年第1期53-59,共7页Electroplating & Finishing

基　　金：国家自然科学基金地区科学基金项目(51665056)。

摘　　要：在316L不锈钢表面射流电沉积镍过程中施加与电场方向平行的磁场。分析了平行磁场下微纳表面结构镍镀层的生长机理。通过场发射扫描电镜、接触角测量仪和三维显微镜分析了无磁场辅助和不同磁感应强度的平行磁场辅助下射流电沉积所得镍镀层的表面微观形貌、水接触角和面粗糙度。结果表明,在射流电沉积过程中施加平行磁场能够提高镍镀层的疏水性。当磁感应强度为200 mT时,所得镍镀层表面的缝隙最多,凸起分布得最均匀,面粗糙度(Sa)为2.94μm,水接触角达到147.5°,疏水性最好。A magnetic field parallel to the electric field was applied during jet electrodeposition of nickel on the surface of 316L stainless steel. The growth mechanism of nickel coating with a micro-nano structured surface under parallel magnetic field was analyzed. The surface morphology, water contact angle, and area roughness of the nickel coatings obtained by jet electrodeposition without the assistance of magnetic field and assisted by a parallel magnetic field with different magnetic induction intensities were analyzed by using field-emission scanning electron microscope, contact angle meter, and threedimensional microscope. The results showed that the hydrophobicity of nickel coating can be improved by applying a parallel magnetic field during the process of jet electrodeposition. The nickel coating obtained at magnetic induction intensity 200 mT featured the most micro-gaps and most uniform distribution of bumps on its surface, which exhibited an area roughness(Sa)2.94 μm and a water contact angle 147.5°, showing the best hydrophobicity.

关 键 词：不锈钢 射流电沉积 镍 平行磁场 疏水性 尖端效应 

分 类 号：TQ153.12[化学工程—电化学工业]