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2222材料工程  2015, Vol. 43 Issue (9): 25-29    DOI: 10.11868/j.issn.1001-4381.2015.09.005
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
超疏水铝合金表面的防覆冰和防黏附行为
晏忠钠, 车彦慧, 冯利邦(), 强小虎, 刘艳花
兰州交通大学 机电工程学院, 兰州 730070
Anti-icing and Anti-adhesion Behavior of Superhydrophobic Aluminum Alloy Surface
Zhong-na YAN, Yan-hui CHE, Li-bang FENG(), Xiao-hu QIANG, Yan-hua LIU
School of Mechatronic Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
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摘要 

通过硬脂酸的醇水溶液一步浸泡法成功获得超疏水铝合金表面,其水接触角可达156.2°,滚动角小于5°。利用接触角测试、扫描电镜、红外光谱观测、结冰实验与防黏附实验分别对超疏水铝合金表面的润湿性能、表面微结构、化学结构以及防覆冰和防黏附行为进行了研究。结果表明:所制得的超疏水表面是由微-纳"多孔"结构和疏水烃基长链所共同赋予的。正是由于其特殊的粗糙结构和化学组成,使得该超疏水表面表现出良好的防覆冰和防黏附行为。

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晏忠钠
车彦慧
冯利邦
强小虎
刘艳花
关键词 一步浸泡铝合金超疏水防覆冰防黏附    
Abstract

A superhydrophobic aluminum alloy surface was successfully prepared via a one-step immersion method in stearic acid-alcohol-water solution. The contact angle can reach 156.2° while the sliding angle is less than 5°. The wettability, surface microstructure and chemical structure, anti-icing, and anti-adhesion behavior were investigated by means of contact angle measurement, SEM, FT-IR, freezing and anti-adhesion experiments, respectively. Results indicate that the micro- and nano-scale porous structure together with the grafted hydrophobic alkyl long chains endows the aluminum alloy surface with the superhydrophobic property. Just grounded on the peculiar rough structure and chemical composition, the resulting superhydrophobic aluminum alloy surface possesses excellent anti-icing and anti-adhesion behavior.

Key wordsone-step immersion    aluminum alloy    superhydrophobic    anti-icing    anti-adhesion
收稿日期: 2014-10-22      出版日期: 2015-09-26
基金资助:国家自然科学基金资助项目(21161012)
通讯作者: 冯利邦     E-mail: fenglb@mail.lzjtu.cn
作者简介: 冯利邦(1971-),男,博士,教授,主要从事功能界面材料的研究工作,联系地址:甘肃省兰州市安宁西路88号兰州交通大学406#(730070),E-mail:fenglb@mail.lzjtu.cn
引用本文:   
晏忠钠, 车彦慧, 冯利邦, 强小虎, 刘艳花. 超疏水铝合金表面的防覆冰和防黏附行为[J]. 材料工程, 2015, 43(9): 25-29.
Zhong-na YAN, Yan-hui CHE, Li-bang FENG, Xiao-hu QIANG, Yan-hua LIU. Anti-icing and Anti-adhesion Behavior of Superhydrophobic Aluminum Alloy Surface. Journal of Materials Engineering, 2015, 43(9): 25-29.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2015.09.005      或      http://jme.biam.ac.cn/CN/Y2015/V43/I9/25
Fig.1  水滴在所制备的铝合金表面的照片
(a)润湿性;(b)接触角;(c)滚动角
Fig.2  铝合金表面SEM形貌
(a)空白样;(b),(c)超疏水表面
Fig.3  铝合金表面和硬脂酸的红外光谱图
(a)空白铝合金;(b)超疏水铝合金;(c)硬脂酸
Fig.4  空白样(左)和超疏水铝合金试样(右)在-8℃结冰过程照片
(a)冷冻前;(b)17min后;(c)25min后
Fig.5  不同温度下水滴在试样表面的结冰时间
Fig.6  自清洁效果照片
(a)空白样;(b)超疏水表面
Fig.7  在3.5%NaCl溶液中浸泡不同时间后试样表面变化
(a)空白样;(b)超疏水试样
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