李欣茹,赵张驰,薛洋,吴宏荣,刘禹,王春雷,魏宁.仿生超疏水多级结构表面设计及机理研究[J].表面技术,2024,53(22):171-179.
LI Xinru,ZHAO Zhangchi,XUE Yang,WU Hongrong,LIU Yu,WANG Chunlei,WEI Ning.Design and Mechanism Study of Biomimetic Superhydrophobic Hierarchical Structure Surface[J].Surface Technology,2024,53(22):171-179 |
| 仿生超疏水多级结构表面设计及机理研究 |
| Design and Mechanism Study of Biomimetic Superhydrophobic Hierarchical Structure Surface |
| 投稿时间：2023-12-12 修订日期：2024-02-07 |
| DOI：10.16490/j.cnki.issn.1001-3660.2024.22.015 |
| 中文关键词: 超疏水表面 玫瑰花瓣效应 荷叶效应 聚苯乙烯微球 多级结构 界面黏附 |
| 英文关键词:superhydrophobic surface rose petal effect lotus effect polystyrene microspheres hierarchical structure interface adhesion |
| 基金项目:国家自然科学基金(12372327);国家自然科学基金青年基金(12002133) |
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| Author | Institution |
| LI Xinru | School of Mechanical Engineering, Jiangnan University, Jiangsu Wuxi 214122, China |
| ZHAO Zhangchi | School of Mechanical Engineering, Jiangnan University, Jiangsu Wuxi 214122, China |
| XUE Yang | Hefei Hualing Co., Ltd., Hefei 230031, China |
| WU Hongrong | School of Mechanical Engineering, Jiangnan University, Jiangsu Wuxi 214122, China |
| LIU Yu | School of Mechanical Engineering, Jiangnan University, Jiangsu Wuxi 214122, China |
| WANG Chunlei | School of Science, Shanghai University, Shanghai 200444, China |
| WEI Ning | School of Mechanical Engineering, Jiangnan University, Jiangsu Wuxi 214122, China |
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| 中文摘要: |
| 目的 实现液滴在仿生超疏水表面的水黏附力调控。方法 通过调控表面结构实现薄膜由仿玫瑰花瓣高黏附疏水表面转变为仿荷叶低黏附超疏水表面。将PS微球与无水乙醇混合制得涂层结构，将其转移到半固化的PDMS表面蒸发固化，通过调控PS微球的尺寸和混合比例，得到具有水黏附力可控的超疏水表面。利用场发射扫描电子显微镜、白光干涉仪和接触角测量仪，对薄膜表面的微观形貌、粗糙度和润湿性能进行表征。最后利用两种不同功能的表面制备了简易的液滴无损转移装置。结果 通过制备直径为80 nm、8 μm以及80 nm-8 μm混合PS微球表面，发现80 nm和8 μm表面的液滴接触角分别为129.3°和131.4°左右，但两种表面均呈现出液滴高黏附现象，即使表面翻转180°液滴也不会滚落。但80 nm-8 μm混合表面呈现出低黏附超疏水现象，接触角可达158.3°，滚动角为8.9°。此外当两种粒子按体积比为1∶1混合时，超疏水性最好。结论 制备出的具有不同液滴黏附性的仿生超疏水表面，可实现微量液滴的无损转移，在自清洁、减阻、微流体和生化分析等领域具有应用潜力。 |
| 英文摘要: |
| It is a simple biomimetic technology that achieves surface wettability conversion by regulating the surface micro-nano structure, which can realize the conversion of the surface from high adhesion to low adhesion. The differences in surface microstructure primarily determine the two different wetting properties exhibited by rose petals and lotus leaves. This article studies the use of PS microspheres to construct bionic micro-nano structures on PDMS surfaces to achieve water adhesion regulation of superhydrophobic surfaces. |
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