Spontaneous dewetting of a hydrophobic micro-structured surface

doi:10.1088/1361-648X/ab1998

IMECH-IR > 非线性力学国家重点实验室

	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
通讯作者	Peng, Zhilong(pengzhilong@bit.edu.cn) ; Chen, Shaohua(chenshaohua72@hotmail.com)
发表期刊	JOURNAL OF PHYSICS-CONDENSED MATTER
	2019-07-24
卷号	31 期号:29 页码:8
ISSN	0953-8984
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.
关键词	micro-pillar arrayed surface dewetting transition energy difference critical droplet volume biomimetic design
DOI	10.1088/1361-648X/ab1998
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000467278400001
关键词[WOS]	SUPERHYDROPHOBIC SURFACES ; CONDENSATION ; WATER ; TRANSITION ; DYNAMICS ; LOTUS
WOS研究方向	Physics
WOS类目	Physics, Condensed Matter
资助项目	NSFC[11532013] ; NSFC[11672302] ; NSFC[11872114]
项目资助者	NSFC
论文分区	二类
力学所作者排名	1
RpAuthor	Peng, Zhilong ; Chen, Shaohua
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/79166
专题	非线性力学国家重点实验室
作者单位	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
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.

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