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铝片表面制备稳定超疏水聚合物薄膜

发表时间:2008-07-31  浏览量:1671  下载量:841
全部作者: 董小宁,卞凤玲,张俊彦,程锦春
作者单位: 兰州大学化学化工学院;中国科学院兰州化学物理研究所固体润滑国家重点实验室
摘 要: 在引发剂作用下采用氮-氧活性自由基聚合法制备了官能团新颖的活性聚合物4-乙烯基苯并环丁烯和2,3,4,5,6-五氟苯乙烯无规共聚物。通过简单化学刻蚀的方法制得了表面粗糙的铝合金表面,以苯并环丁烯和五氟苯乙烯无规共聚物作为涂层,采用旋涂法在铝合金片基体上构造了超疏水表面。用扫描电子显微镜、接触角测定仪和多功能X射线光电子能谱仪等技术对超疏水表面进行了表征和分析。结果表明:涂层表面存在颗粒状粗糙岛状结构,聚合物薄膜的接触角达到156°.在高温下通过对薄膜热交联得到与基底结合牢固的超疏水表面,经过共聚物溶液甲苯浸泡1个月,依然保持超疏水性能。
关 键 词: 高分子材料;4-乙烯基苯并环丁烯和苯乙烯无规共聚物;聚合物薄膜;超疏水性;热交联
Title: Robust superhydrophobic copolymer films on aluminum
Author: DONG Xiaoning, BIAN Fengling, ZHANG Junyan, CHENG Jinchun
Organization: College of Chemistry and Chemical Engineering, Lanzhou University;State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences
Abstract: A random copolymer of 4-vinylbenzocyclobutene and 2,3,4,5,6-pentafluorostyrene with a novel functional group has been synthesized using nitroxide mediated living radical polymerizations. The superhydrophobic layer composed of 4-vinylbenzocyclobutene and 2,3,4,5,6-pentafluorostyrene random copolymer was spin-coated on the aluminum alloy surface which was pre-fabricated by chemical etching process. The superhydrophobic surface was characterized by scanning electron microscope (SEM), optical contact angle meter and X-ray photo electron spectroscopy(XPS). It was found that the surface was configured in a coarse granular structure, and the contact angle on aluminum film reached 156� The binding of he superhydrophobic layer with the aluminum film was greatly enhanced by heat crosslinking, as demonstrated by the findings that superhydrophobic property of the aluminum film remained unchanged after being immersed in the toluene solution for a month.
Key words: polymer material; random copolymer of 4-vinylbenzocyclobutene and 2,3,4,5,6-pentafluorostyrene; polymer film; superhydrophobicity; heat crosslinking
发表期数: 2008年11月第14期
引用格式: 董小宁,卞凤玲,张俊彦,等. 铝片表面制备稳定超疏水聚合物薄膜[J]. 中国科技论文在线精品论文,2008,1(14):1555-1559.
 
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