Contact angle hysteresis at the nanoscale: a molecular dynamics simulation study

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	Contact angle hysteresis at the nanoscale: a molecular dynamics simulation study
	Wang FC(王奉超); Zhao YP(赵亚溥); Zhao, YP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
发表期刊	COLLOID AND POLYMER SCIENCE
	2013-02-01
卷号	291 期号:2 页码:307-315
ISSN	0303-402X
摘要	In this paper, the contact angle hysteresis (CAH) of nanodroplets on both rigid and flexible substrates with different wettabilities was studied using molecular dynamics (MD) simulations. The critical shear stress (CSS) that determines the motion of the contact line (CL) was investigated. A theoretical correlation between CAH and CSS was proposed. Both CAH and CSS reflect the energy dissipation at the CL of the droplet in response to the exerted force. MD results of CAH are qualitatively consistent with the theoretical model. Simulation results also show that, for the same liquid-solid interactions, CAH on the flexible substrate is larger than that on the rigid substrate. These findings aim to enhance our understanding of the mechanism of the CAH at the nanoscale.
关键词	Contact Angle Hysteresis Critical Shear Stress Moving Contact Line Disjoining Pressure Flexible Substrate Molecular Dynamics Simulation
学科领域	物理力学
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000313737700008
项目资助者	National Natural Science Foundation of China (NSFC) [11072244, 60936001, 11021262]; Key Research Program of the Chinese Academy of Sciences [KJZD-EW-M01]; Instrument Developing Project of the Chinese Academy of Sciences [Y2010031]; Shanghai Supercomputer Center
课题组名称	LNM纳/微系统力学与物理力学
论文分区	二类/Q2
引用统计	被引频次：58[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/311007/47024
专题	非线性力学国家重点实验室
通讯作者	Zhao, YP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Wang FC,Zhao YP,Zhao, YP . Contact angle hysteresis at the nanoscale: a molecular dynamics simulation study[J]. COLLOID AND POLYMER SCIENCE,2013,291,2,:307-315.
APA	Wang FC,Zhao YP,&Zhao, YP .(2013).Contact angle hysteresis at the nanoscale: a molecular dynamics simulation study.COLLOID AND POLYMER SCIENCE,291(2),307-315.
MLA	Wang FC,et al."Contact angle hysteresis at the nanoscale: a molecular dynamics simulation study".COLLOID AND POLYMER SCIENCE 291.2(2013):307-315.

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