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)
刊名	COLLOID AND POLYMER SCIENCE
	2013-02-01
通讯作者邮箱	yzhao@imech.ac.cn
卷号	291 期号:2 页码:307-315
关键词	Contact angle hysteresis Critical shear stress Moving contact line Disjoining pressure Flexible substrate Molecular dynamics simulation
ISSN号	0303-402X
通讯作者	Zhao, YP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
产权排序	[Wang, Feng-Chao; Zhao, Ya-Pu] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
中文摘要	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.
学科主题	物理力学
分类号	二类/Q2
收录类别	SCI ; EI
资助信息	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
原文出处	http://dx.doi.org/10.1007/s00396-012-2747-2
语种	英语
WOS记录号	WOS:000313737700008
公开日期	2013-03-07
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/47024]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Wang FC,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.(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.