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材料工程  2013, Vol. 0 Issue (3): 55-60    DOI: 10.3969/j.issn.1001-4381.2013.03.011
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
强黏附性超疏水氧化铝的表面结构和黏附机理
强小虎, 张红霞, 王彦平, 冯利邦
兰州交通大学 机电工程学院,兰州 730070
Structure and Adhesive Mechanism of Superhydrophobic Alumina Surface with High Adhesive Force
QIANG Xiao-hu, ZHANG Hong-xia, WANG Yan-ping, FENG Li-bang
School of Mechatronic Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
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摘要 以三丁醇铝为前驱体,采用溶胶-凝胶法和浸涂法制备得到氧化铝凝胶薄膜。再通过沸水处理、热处理和表面接枝聚乙烯亚胺和硬脂酸等工艺,获得了一种既具有超疏水特性又呈现出强黏附力的氧化铝薄膜。利用傅里叶变换红外光谱(FTIR)、场发射扫描电子显微镜(FE-SEM)、X射线衍射(XRD)和接触角测试等技术对薄膜表面的化学组成、形貌、结构和润湿性能及其黏附性等进行了考察。结果表明:所研制的氧化铝表面由多孔的花瓣状粗糙结构和独特的疏水长链单分子层构成。水滴可以润湿粗糙表面上较大尺度的凹槽,而不能浸润较小尺度的凹槽,从而使得这种氧化铝表面既呈现出很高的接触角,又具有较强的黏附特性。
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强小虎
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王彦平
冯利邦
关键词 氧化铝超疏水花瓣状结构强黏附力    
Abstract:Alumina gel film was prepared by the sol-gel and dip-coating method using Al(O-sec-Bu)3 as a precursor. Then an alumina film with both superhydrophobicity and high adhesive force was fabricated by treatment procedures as heat, boiling water, and surface modification with PEI and STA. The chemical composition, morphology, structure, and wettability of the superhydrophobic surface were investigated by techniques as FTIR, FE-SEM, XRD, and contact angle measurement. Results show that the alumina surface is made up of the porous flowerlike structure coated with a layer of long hydrophobic alkyl chains. Water is expected to enter into the large scale grooves of the rough alumina surface, but it can not enter into the small scale ones. Consequently, the alumina surface shows both high contact angle and strong adhesion.
Key wordsalumina    superhydrophobic    flowerlike structure    strong adhesive force
收稿日期: 2012-01-10      出版日期: 2013-03-20
中图分类号: 

TB381

 
基金资助:

国家自然科学基金(21161012);甘肃省自然科学基金(1107RJZA184)

通讯作者: 冯利邦(1971-),男,博士,副教授,主要从事功能界面材料的研究工作,联系地址:兰州市安宁西路88号兰州交通大学406#(730070)     E-mail: fenglb@mail.lzjtu.cn
作者简介: 强小虎(1972-),男,硕士,讲师,主要从事智能纳米界面材料的研究工作
引用本文:   
强小虎, 张红霞, 王彦平, 冯利邦. 强黏附性超疏水氧化铝的表面结构和黏附机理[J]. 材料工程, 2013, 0(3): 55-60.
QIANG Xiao-hu, ZHANG Hong-xia, WANG Yan-ping, FENG Li-bang. Structure and Adhesive Mechanism of Superhydrophobic Alumina Surface with High Adhesive Force. Journal of Materials Engineering, 2013, 0(3): 55-60.
链接本文:  
http://jme.biam.ac.cn/CN/10.3969/j.issn.1001-4381.2013.03.011      或      http://jme.biam.ac.cn/CN/Y2013/V0/I3/55
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