IMECH-IR  > 非线性力学国家重点实验室
Importance of hierarchical structures in wetting stability on submersed superhydrophobic surfaces
Xue YH; Chu SG; Lv PY; Duan HL(段慧玲); Duan, HL; Peking Univ, Coll Engn, Dept Mech & Aerosp Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China.
Source PublicationLANGMUIR
2012-06-01
Volume28Issue:25Pages:9440-9450
ISSN0743-7463
AbstractSubmersed superhydrophobic surfaces exhibit great potential for reducing flow resistance in microchannels and drag of submersed bodies. However, the low stability of liquid-air interfaces on those surfaces limits the scope of their application, especially under high liquid pressure. In this paper, we first investigate the wetting states on submersed hydrophobic surfaces with one-level structure under hydrostatic pressure. Different equilibrium states based on free-energy minimization are formulated, and their stabilities are analyzed as well. Then, by comparison with the existing numerical and experimental studies, we confirm that a new metastable state, which happens after depinning of the three-phase contact line (TCL), exists. Finally, we show that a strategy of using hierarchical structures can strengthen the TCL pinning of the liquid-air interface in the metastable state. Therefore, the hierarchical structure on submersed surfaces is important to further improve the stability of superhydrophobicity under high liquid pressure.
KeywordContact-angle Hysteresis Rough Surfaces Low Adhesion Transition Cassie States Water Pressure
Subject Area物理力学
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000305661400033
Funding OrganizationSupport by the following agencies and program is acknowledged: Major State Basic Research Development Program of China (Grant no. 2011CB013101). National Natural Science Foundation of China under Grants 10872003, 10932001 and 11172001;Program for the Author of National Excellent Doctoral Dissertation of China (grant no. 2007B2). Huiling Duan would like to acknowledge the Alexander von Humboldt (AvH) foundation to support this work through project "Mechanics theory of materials with complex surfaces and its applications" in the frame of the AvH program for funding a research group linkage.
Department非线性力学国家重点实验室
Classification一类
Citation statistics
Cited Times:108[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46690
Collection非线性力学国家重点实验室
Corresponding AuthorDuan, HL; Peking Univ, Coll Engn, Dept Mech & Aerosp Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China.
Recommended Citation
GB/T 7714
Xue YH,Chu SG,Lv PY,et al. Importance of hierarchical structures in wetting stability on submersed superhydrophobic surfaces[J]. LANGMUIR,2012,28,25,:9440-9450.
APA Xue YH,Chu SG,Lv PY,Duan HL,Duan, HL,&Peking Univ, Coll Engn, Dept Mech & Aerosp Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China..(2012).Importance of hierarchical structures in wetting stability on submersed superhydrophobic surfaces.LANGMUIR,28(25),9440-9450.
MLA Xue YH,et al."Importance of hierarchical structures in wetting stability on submersed superhydrophobic surfaces".LANGMUIR 28.25(2012):9440-9450.
Files in This Item: Download All
File Name/Size DocType Version Access License
Langmuir-2012-28-944(4620KB) 开放获取--View Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Lanfanshu
Similar articles in Lanfanshu
[Xue YH]'s Articles
[Chu SG]'s Articles
[Lv PY]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xue YH]'s Articles
[Chu SG]'s Articles
[Lv PY]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xue YH]'s Articles
[Chu SG]'s Articles
[Lv PY]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Langmuir-2012-28-9440-9450.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.