脉冲频率对电沉积超疏水锌镀层结构及性能影响  

Effect of Pulse Frequency on Structure and Performance of Superhydrophobic Zinc Coating

作　　者：李瑞乾 崔偎偎 李梦情 白子龙 魏标 张琳 白翠冰 LI Ruiqian;CUI Weiwei;LI Mengqing;BAI Zilong;WEI Biao;ZHANG Lin;BAI Cuibing(School of Chemistry and Materials Engineering,Fuyang Normal University,Fuyang Anhui 236037,China;Engineering Research Centre of Biomass Conversion and Pollution Prevention Control of Anhui Provincial Department of Education,Fuyang Anhui 236037,China)

机构地区：[1]阜阳师范大学化学与材料工程学院,安徽阜阳236037 [2]生物质转化与污染防控安徽省高校工程技术研究中心,安徽阜阳236037

出　　处：《阜阳师范大学学报（自然科学版）》2022年第3期43-48,共6页Journal of Fuyang Normal University:Natural Science

基　　金：国家自然科学基金项目(52101080);安徽省自然科学基金项目(2008085QE201,2008085QB54);安徽省高校自然科学研究项目(KJ2020A0537,KJ2020A0525);国家级大学生创新训练项目(202110371003,202110371004);校级青年人才重点项目(rcxm202207);学校博士科研启动项目(2017KYQD0009)。

摘　　要：以氯化胆碱-尿素低共熔溶剂为电解液,通过调控脉冲频率制备得到一系列具有不同形貌结构的锌基镀层。利用扫描电子显微镜(SEM)、X射线粉末衍射仪(XRD)、接触角测量仪及电化学工作站研究了沉积频率对锌基镀层形貌结构、超疏水性及耐腐蚀性的影响。结果表明,随着沉积频率增加,锌基镀层表面由菜花状结构逐渐向刀锋状结构转变。受表面结构影响,锌镀层超疏水性和耐腐蚀性表现出先降低后增加的趋势,在高频(2 000 Hz)下制备的锌镀层具有最佳的超疏水性(155.6°)和耐腐蚀性。Superhydrophobic zinc coatings with different structures were fabricated by regulating the pulse frequency in choline chloride-urea based on deep eutectic solvent. The effect of pulse frequency on structure, superhydrophobicity and corrosion resistance of zinc coatings was characterized by SEM, XRD, contact angle measurement instrument and electrochemical workstation. The results show that the surface structure of Zn coating is shifting from the cauliflower-like sturcture to the bladelike sturcture with the increase in frequency. The superhydrophobicity and corrosion resistance of zinc coatings firstly increased with the frequency and then decreased because of the change of surface structure. The Zn coating deposited at 2 000 Hz shows the best superhydrophobicity(155.6°) and corrosion resistance.

关 键 词：电沉积 脉冲频率 表面结构 超疏水 耐腐蚀 

分 类 号：TG174[金属学及工艺—金属表面处理]