Spontaneous dewetting of a hydrophobic micro-structured surface
文献类型：期刊论文
| 作者 | Li XJ(李兴济)1,5 ; Li JJ(李建军)2; Peng ZL(彭志龙)3,4; Chen SH(陈少华)3,4
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| 刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER
 |
| 出版日期 | 2019-07-24 |
| 卷号 | 31期号:29页码:8 |
| 关键词 | micro-pillar arrayed surface dewetting transition energy difference critical droplet volume biomimetic design |
| ISSN号 | 0953-8984 |
| DOI | 10.1088/1361-648X/ab1998 |
| 通讯作者 | Peng, Zhilong(pengzhilong@bit.edu.cn) ; Chen, Shaohua(chenshaohua72@hotmail.com) |
| 英文摘要 | 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. |
| 分类号 | 二类 |
| URL标识 | 查看原文 |
| WOS关键词 | SUPERHYDROPHOBIC SURFACES ; CONDENSATION ; WATER ; TRANSITION ; DYNAMICS ; LOTUS |
| 资助项目 | NSFC[11532013] ; NSFC[11672302] ; NSFC[11872114] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000467278400001 |
| 资助机构 | NSFC |
| 其他责任者 | Peng, Zhilong ; Chen, Shaohua |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/79166]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Cent S Univ, State Key Lab High Performance Complex Mfg, Coll Mech & Elect Engn, Changsha 410083, Hunan, Peoples R China; 3.Beijing Inst Technol, Beijing Key Lab Lightweight Multifunct Composite, Beijing 100081, Peoples R China; 4.Beijing Inst Technol, Inst Adv Struct Technol, Beijing 100081, Peoples R China; 5.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China; |
| 推荐引用方式 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. |
| 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. |
入库方式： OAI收割
来源：力学研究所
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