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.
ZHAO Shu-guo,CHEN Yang,MA Ning,LI Jing-chun,SHAN Bao-feng.Superhydrophobic Surface of Aluminum Alloy Prepared by Electrochemical Etching and Wettability Transition[J].Surface Technology,2018,47(3):115-120
电化学刻蚀法制备铝合金超疏水表面及其润湿性转变
Superhydrophobic Surface of Aluminum Alloy Prepared by Electrochemical Etching and Wettability Transition
投稿时间:2017-10-15  修订日期:2018-03-20
DOI:10.16490/j.cnki.issn.1001-3660.2018.03.019
中文关键词:  铝合金  超疏水表面  电化学刻蚀  保存法  加热处理  环保
英文关键词:aluminum alloy  super-hydrophobic surface  electrochemical etching  preservation method  heat treatment  environmental friendly
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)
作者单位
赵树国 沈阳航空航天大学 机电工程学院,沈阳 110136 
陈阳 沈阳航空航天大学 机电工程学院,沈阳 110136 
马宁 沈阳航空航天大学 机电工程学院,沈阳 110136 
李景春 沈阳航空航天大学 机电工程学院,沈阳 110136 
单宝峰 沈阳航空航天大学 机电工程学院,沈阳 110136 
AuthorInstitution
ZHAO Shu-guo School of Mechatronic Engineering, Shenyang Aerospace University, Shenyang 110136, China 
CHEN Yang School of Mechatronic Engineering, Shenyang Aerospace University, Shenyang 110136, China 
MA Ning School of Mechatronic Engineering, Shenyang Aerospace University, Shenyang 110136, China 
LI Jing-chun School of Mechatronic Engineering, Shenyang Aerospace University, Shenyang 110136, China 
SHAN Bao-feng School of Mechatronic Engineering, Shenyang Aerospace University, Shenyang 110136, China 
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中文摘要:
      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。
英文摘要:
      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.
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