纳米复合电沉积制备钢基超疏水表面工艺探究  

Preparation of a superhydrophobic surface on steel substrate by nanocomposite electrodeposition

作　　者：汪骥[1,2,3] 陈昌毅[1] 李瑞[1] 蒋文轩[1] 于鑫[1] 

机构地区：[1]大连理工大学船舶工程学院,辽宁大连116023 [2]高新船舶与深海开发装备协同创新中心,辽宁大连116023 [3]大连理工大学工业装备结构分析国家重点实验室,辽宁大连116024

出　　处：《哈尔滨工程大学学报》2016年第5期660-665,共6页Journal of Harbin Engineering University

基　　金：国家自然科学基金面上项目(51479030)

摘　　要：为解决钢基表面超疏水制备工艺复杂、制备成本昂贵、制备效率低等问题,同时避免使用过往单因素分析方法,本文运用纳米微粒复合电沉积理论,提出了一种在船用Q235基材上制备Ni-n SiO_2超疏水复合镀层的新工艺。通过对基础实验设备的改进,结合复合电镀以及复合电刷镀工艺的优点,在基材上构筑了适合超疏水性能的微纳米双重粗糙度结构。通过正交实验法和极差分析对制得的样板进行分析,得到了优化的制备工艺参数。最终,当电流密度为30 A/dm^2,阳极速度6 m/min,沉积时间3 min时,可制备出接触角为159.96°的超疏水表面。A new method for preparing a superhydrophobic Ni-nSiO2 composite coating on a Q235 steel surface is proposed. The goals are to solve problems such as the complicated process, high cost, and low efficiency involved in preparing a superhydrophobic surface on a steel substrate and to avoid applying previous single-factor analysis methods. Using the techniques of electrodeposition of composite coatings containing nanoparticles, composite electroplating and composite brush electroplating, appropriate binary micro-nano rough structures on the substrate were constructed to achieve the super-hydrophobic performance. A set of relevant technical parameters were also studied to obtain the optimum process parameters through orthogonal test and range analysis. Finally, when the current density was set at 30 A/dm2 , the speed of the anode was set at 6 m/min, and the deposition time was 3 rain, the super-hydrophobic surface was prepared with a contact angle of 159.96°.

关 键 词：超疏水表面 表面技术 制备工艺 电沉积 正交实验设计 工艺参数优化 纳米复合材料 钢基板 

分 类 号：TG178[金属学及工艺—金属表面处理]