电刷镀技术制备仿生疏水镍涂层  

Brush plating technology to prepare biomimetic hydrophobic nickel coating

作　　者：范凤玉 孟永哲 张龙 陈兆钦 FAN Fengyu;MENG Yongzhe;ZHANG Long;CHEN Zhaoqin(Qingdao Haier Smart Kitchen Appliance Co.,Ltd.Qingdao 266100;National Engineering Research Center of Digital Home Networking,Qingdao 266101)

机构地区：[1]青岛海尔智慧厨房电器有限公司,山东青岛266100 [2]数字家庭网络国家工程研究中心,山东青岛266101

出　　处：《家电科技》2023年第S01期343-348,共6页Journal of Appliance Science & Technology

摘　　要：受荷叶表面微观结构特征的启发,采用刷镀技术制备了仿生疏水镍涂层。研究了电镀电压对镀层形貌和润湿性的影响。通过超深度三维扫描系统、扫描电子显微镜(SEM)、能谱仪(EDS)和水接触角测量,获得了Ni涂层的表面形貌、化学成分和润湿性。结果表明,所制备的Ni涂层具有典型的分级结构,与荷叶的形态相似。所制备的Ni涂层表面形态的演变在很大程度上取决于电镀电压。多孔形态和分级结构的结合在改善疏水性能方面起着至关重要的作用。在没有表面化学改性的情况下,Ni涂层的润湿性从亲水性转变为优异的疏水性(水接触角146°)。通过Cassie-Baxier模型说明了Ni涂层的润湿性与表面形貌之间的关系,表明类似荷叶的仿生结构赋予了Ni涂层优异的润湿性。Inspired by microstructure characteristics of lotus leaves surfaces,the biomimetic hydrophobic Ni coating has been fabricated by brush plating technique.The effect of the plating voltage on the morphology and wettability were studied.The surface morphology,chemical composition,and wettability of the Ni coating were obtain by means of ultra-depth three-dimensional scanning system,scanning electronic microscope(SEM),energy-dispersive spectroscopy(EDS),and water contact angle measurement.The result indicated that the as-prepared Ni coating exhibit typical hierarchical structure,which is similar to the morphology of lotus leaf.The evolution of surface morphology on the as-prepared Ni coating depends strongly on the plating voltage.The combination of the porous morphology and hierarchical structures plays a crucial role in improving the hydrophobic property.In absence of surface chemical modification,the wettability property of the Ni coating was transformed from hydrophilicity to excellent hydrophobicity(water contact angle 146°).The work also illustrated the relationship between the wettability property and the surface morphology by Cassie-Baxier model,which indicate that the biomimetic structure which like lotus leaf endows the Ni coating an excellent wettability property.

关 键 词：仿生 电刷镀 润湿性 镍涂层 

分 类 号：TB34[一般工业技术—材料科学与工程]