| Spontaneous dewetting of a hydrophobic micro-structured surface | |
Li XJ(李兴济)1,5 ; Li JJ(李建军)4; Peng ZL(彭志龙)2,3; Chen SH(陈少华)2,3
| |
| Corresponding Author | Peng, Zhilong([email protected]) ; Chen, Shaohua([email protected]) |
| Source Publication | JOURNAL OF PHYSICS-CONDENSED MATTER
 |
| 2019-07-24 | |
| Volume | 31Issue:29Pages:8 |
| ISSN | 0953-8984 |
| Abstract | Inspired by recent experimental observations and natural phenomena that spontaneous dewetting transition occurs on a hydrophobic micro-structured surface, a thermodynamic model of a condensed water droplet on a micro-pillar arrayed surface is established in order to disclose the mechanical mechanism. Based on a general model of an arbitrary-shaped micro-structured surface, surfaces with conical, rectangular and parabolic micro-pillars are investigated. A critical water droplet volume is found, beyond which dewetting transition can be realized. The effect of the micro-pillar's size and intrinsic contact angle on the free energy difference and critical water droplet volume are further studied. The theoretical model may provide a possible explanation for the abnormal Wenzel wetting state of condensed water droplets on lotus leaves and the anti-fogging behavior of a mosquito's compound eyes. The present results should be very useful for the biomimetic design of functional dewetting surfaces in practical applications. |
| Keyword | micro-pillar arrayed surface dewetting transition energy difference critical droplet volume biomimetic design |
| DOI | 10.1088/1361-648X/ab1998 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000467278400001 |
| WOS Keyword | SUPERHYDROPHOBIC SURFACES ; CONDENSATION ; WATER ; TRANSITION ; DYNAMICS ; LOTUS |
| WOS Research Area | Physics |
| WOS Subject | Physics, Condensed Matter |
| Funding Project | NSFC[11532013] ; NSFC[11672302] ; NSFC[11872114] |
| Funding Organization | NSFC |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Peng, Zhilong ; Chen, Shaohua |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/79166 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China; 2.Beijing Inst Technol, Inst Adv Struct Technol, Beijing 100081, Peoples R China; 3.Beijing Inst Technol, Beijing Key Lab Lightweight Multifunct Composite, Beijing 100081, Peoples R China; 4.Cent S Univ, State Key Lab High Performance Complex Mfg, Coll Mech & Elect Engn, Changsha 410083, Hunan, Peoples R China; 5.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Li XJ,Li JJ,Peng ZL,et al. Spontaneous dewetting of a hydrophobic micro-structured surface[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2019,31,29,:8.Rp_Au:Peng, Zhilong, Chen, Shaohua |
| APA | 李兴济,李建军,彭志龙,&陈少华.(2019).Spontaneous dewetting of a hydrophobic micro-structured surface.JOURNAL OF PHYSICS-CONDENSED MATTER,31(29),8. |
| MLA | 李兴济,et al."Spontaneous dewetting of a hydrophobic micro-structured surface".JOURNAL OF PHYSICS-CONDENSED MATTER 31.29(2019):8. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2019187.pdf（12KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment