微刻蚀法在铜基表面制备超疏水膜的研究-国家级大学生创新创业训练.PDF

微刻蚀法在铜基表面制备超疏水膜的研究 东北大学 谭隽阳 郝俊杰 安振强 刘常升 （东北大学材料科学与工程学院，辽宁 沈阳 110819） 指导教师 刘常升 教授 摘要：通过在传统材料上构建人造超疏水表面是提升其使用性能的一种高效方法。提出了一种在黄铜基底上构建超疏水 表面的简单方法：首先，利用微刻蚀方法在黄铜表面构造出微纳米级粗糙结构，然后用硬脂酸进行改性以降低其表面能。实 验过程中，黄铜由亲水转变为超亲水，最后被转变为超疏水。黄铜的表面结构由扫面电镜与X 射线光电子能谱表征。通过设 计设计出弯曲试验与摩擦实验来探究表面的机械性能。此外，表面还展现出了优异的自清洁性能。该发现可以为超疏水表面 的制备提供参考和优化设计，并可以拓展黄铜的应用。 关键词：超疏水；微刻蚀；改性；微纳米结构 Abstract：Constructing artificial superhydrophobic surfaces is an effective strategy for improving the properties of traditional materials. In this paper, we report an easy method for preparing superhydrophobic surfaces on brass to expand its field of application. The micro-nanostructure on a brass surface was constructed via micro-etching technology, and the resulting surface energy was reduced via stearic acid modification. The surface was analyzed using scanning electron microscopy and X-ray photoelectron spectroscopy. The brass surface was converted from hydrophilic to superhydrophilic to superhydrophobic. Bending and abrasion tests were used to characterize the mechanical durability of the surface. Additionally, the obtained surface exhibited a superior self-cleaning performance. We propose that this method has a promising future for superhydrophobic surface fabrication and can expand the applications of brass Keywords: superhydrophobic; micro-etching; modification; micro-nanostructure 一．引言 [1-4] 大自然中有许多动植物的表面都展现出了极佳的疏水性能，比如说玫瑰花瓣，水稻叶，蝴蝶翅膀等 。 [5-6] 通常，接触角大于150°，滚动角小于10°的表面被定义为超疏水表面 。如今，制备超疏水表面的方法主 [8-10] [11-13] [14-16]