全氟癸基硅烷(PTES)修饰微纳结构超疏水表面耐久性研究  

Durability research of superhydrophobic surfaces prepared on micro/nano structure substrate modified by PTES

作　　者：吕婷[1] 王媛怡[1] 陈庆民[1] Lv Ting Wang Yuanyi Chen Qingmin(Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering Nanjing University, Nanjing, 210093, China)

机构地区：[1]南京大学化学化工学院高分子科学与工程系,南京210093

出　　处：《南京大学学报（自然科学版）》2017年第1期184-190,共7页Journal of Nanjing University（Natural Science）

摘　　要：为了探究全氟癸基硅烷(PTES)修饰化学刻蚀的铝基底制备的超疏水表面的耐久性及其丧失超疏水性的原因,探讨了该超疏水样品在海水和自然环境中的耐久性,采用液体压力研究模拟样品在不同深度的海水中的行为,并通过电镜及X射线光电子能谱仪分析了超疏水性变化的原因.结果显示:超疏水样品在自然环境中展示出了较好的稳定性和耐久性,而抗海水腐蚀性则显不足,尤其是在水压下,其变化主要是微纳结构被破坏,使表面趋于平整.In this article,to investigate the durability and the reason why it loses the superhydrophobility,the superhydrophobic surfaces on the aluminum modified by 1H,1H,2H,2H-perfluorodecyltriethoxysilane（PTES）were prepared,and a series of experiments were designed to verify if the surfaces still maintained the superhydrophobic property after they were treated in the seawater and natural surroundings for a long time.In the experiments,the superhydrophobic surfaces were immersed in the seawater with different water pressures to simulate different depths of seawater for the first time.Moreover,the reasons for the loss of superhydrophobility were analyzed by the scanning electron microscope（SEM）and the X-ray photoelectron spectroscopy（XPS）.The results showed that superhydrophobic surfaces had good stability and durability in the natural surroundings,but not that good in the seawater,especially under the water pressures.The decrease of the superhydrophobility was mainly due to the destruction of the micro/nano structure,not the destruction of the PTES coatings.

关 键 词：超疏水表面 耐久性 海水腐蚀 硅烷 微纳结构 

分 类 号：O647.11[理学—物理化学]