文档介绍：
多孔阳极氧化铝膜非对称浸润性研究#
王慧敏,范霞**
(北京航空航天大学化学与环境学院,仿生智能界面科学与技术教育部重点实验室,北京
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100191)
摘要:本工作通过对多孔阳极氧化铝(AAO)膜两侧表面进行非对称处理研究了其非对称浸
润性。扫描电子显微镜(SEM)结果显示多孔 AAO 纳米通道膜两侧具有不同大小的孔径,将
AAO 一面进行氧等离子处理引入含氧基团获得亲水表面,另外一面修饰低表面能的氟硅烷获
得超疏水表面,实现了在 AAO 纳米通道膜两侧的非对称修饰,从而获得具有亲水/疏水非对
称浸润性的 AAO 表面。在小孔面进行氧等离子处理、大孔面修饰氟硅烷时非对称浸润性性
能最佳,此时两侧表面接触角差值达到最大值 154°,为水在 AAO 膜上的单向水渗透提供了
可能。
关键词:多孔阳极氧化铝;非对称;超亲水;超疏水
中图分类号:
Study of asymmetric wettability of Porous anodic alumina
membranes
Wang Huimin, Fan Xia
(Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of
Education, School of Chemistry and Environment, BeiHang University, Beijing 100191)
Abstract: In this paper,We study the asymmetric wettability of porous aluminum oxide (AAO)
film with asymmetric surface treatment. Scanning electron microscopy show that the pore sizes of
each sides of AAO are not the same. One side of AAO is treated with oxygen plasma surface
treatment technology to introduce oxygen-containing groups and thus obtain a hydrophilic surface,
while the other side of AAO is modified with fluorosilanes which is a low surface energy
materials to obtain a superhydrophobic surface,realizing a asymmertric modification to achieve a
hydrophilic/hydrophobic asymmetric wettability surface. The perfect asymmetric wettability
appears when the side with smaller pores of AAO deal wit