| 电化学刻蚀法制备铝合金超疏水表面及其润湿性转变 |
| |
| 引用本文： | 赵树国,陈阳,马宁,李景春,单宝峰.电化学刻蚀法制备铝合金超疏水表面及其润湿性转变[J].表面技术,2018,47(3):115-120. |
| |
| 作者姓名： | 赵树国 陈阳 马宁 李景春 单宝峰 |
| |
| 作者单位： | 沈阳航空航天大学机电工程学院,沈阳,110136;沈阳航空航天大学机电工程学院,沈阳,110136;沈阳航空航天大学机电工程学院,沈阳,110136;沈阳航空航天大学机电工程学院,沈阳,110136;沈阳航空航天大学机电工程学院,沈阳,110136 |
| |
| 基金项目： | 辽宁省自然科学基金（20170540709）；国家自然科学基金青年基金（51305281） |
| |
| 摘 要： | 目的通过简易环保的方法在铝合金基体上制备超疏水表面。方法采用电化学刻蚀和空气中保存法在铝合金基体上制备超疏水表面,用扫描电子显微镜、粗糙度测量仪和光学接触角测量仪对所得样品的微观形貌、表面粗糙度和润湿性进行分析。结果水滴在铝合金表面的接触角随着保存时间的增加而增大,电化学刻蚀所得超亲水表面逐渐表现出超疏水特性。12 d后表面趋于稳定,水滴在铝合金表面的接触角和滚动角分别为(152.3±4.5)°和(6.4±2.2)°。随着电化学刻蚀时间的增加,铝合金表面的润湿性减小。热处理可以使超疏水表面转为超亲水表面,在空气中保存后表面又恢复疏水性。结论试验所用中性环保的NaCl溶液作为电解液,极大地降低了试验对人体和环境的危害。并未使用有害的二次化学涂层作为表面能修饰材料,提高了试验的安全性和超疏水表面的稳定性。通过此简单环保的电化学刻蚀和空气中保存的方法成功地在铝合金基体上制备出了超疏水表面,所得表面展现出良好的疏水特性。
|
| 关 键 词： | 铝合金 超疏水表面 电化学刻蚀 保存法 加热处理 环保 |
| 收稿时间： | 2017/10/15 0:00:00 |
| 修稿时间： | 2018/3/20 0:00:00 |
Superhydrophobic Surface of Aluminum Alloy Prepared by Electrochemical Etching and Wettability Transition |
| |
| ZHAO Shu-guo,CHEN Yang,MA Ning,LI Jing-chun and SHAN Bao-feng.Superhydrophobic Surface of Aluminum Alloy Prepared by Electrochemical Etching and Wettability Transition[J].Surface Technology,2018,47(3):115-120. |
| |
| Authors: | ZHAO Shu-guo CHEN Yang MA Ning LI Jing-chun and SHAN Bao-feng |
| |
| Affiliation: | School of Mechatronic Engineering, Shenyang Aerospace University, Shenyang 110136, China,School of Mechatronic Engineering, Shenyang Aerospace University, Shenyang 110136, China,School of Mechatronic Engineering, Shenyang Aerospace University, Shenyang 110136, China,School of Mechatronic Engineering, Shenyang Aerospace University, Shenyang 110136, China and School of Mechatronic Engineering, Shenyang Aerospace University, Shenyang 110136, China |
| |
| Abstract: | The work aims to prepare superhydrophobic surfaces on aluminum alloy substrate in a simple and environmentally-friendly method. The superhydrophobic surfaces were prepared on the substrate aluminum alloy in the method of environmentally-friendly electrochemical etching and air preservation. Microstructure, surface roughness and wettability of the obtained samples were analyzed with scanning electron microscopy, roughness tester and optical contact angle meter. Contact angle of water droplets on aluminum alloy increased with the increase of storage time, and superhydrophilic surface obtained by electrochemical etching gradually exhibited superhydrophobic properties, and stabilized after 12 days. The contact angle and rolling angle of the water droplets on aluminum alloy was (152.3±4.5)° and (6.4±2.2)°, respectively. As the electrochemical etching time increased, the surface wettability decreased. Heat treatment could convert the super-hydrophobic surface to super-hydrophilic surface, and the surface restored hydrophobicity after being stored in the air. With neutral environmentally-friendly NaCl solution for test use as electrolyte, harm of the test to human body and environment is greatly reduced. Harmful secondary chemical coating is not used as surface energy modified material, which improves safety of the test and stability of super-hydrophobic surface. Superhydrophobic surface is successfully prepared on the substrate aluminum alloy in the method of environmentally-friendly electrochemical etching and air preservation. The as-prepared surface exhibits good hydrophobic properties. |
| |
| Keywords: | aluminum alloy super-hydrophobic surface electrochemical etching preservation method heat treatment environmental friendly |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《表面技术》浏览原始摘要信息 |
|
点击此处可从《表面技术》下载全文 |
|
