IMECH-IR  > 非线性力学国家重点实验室
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.
Source PublicationCOLLOID AND POLYMER SCIENCE
2013-02-01
Volume291Issue:2Pages:307-315
ISSN0303-402X
AbstractIn 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.
KeywordContact Angle Hysteresis Critical Shear Stress Moving Contact Line Disjoining Pressure Flexible Substrate Molecular Dynamics Simulation
Subject Area物理力学
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000313737700008
Funding OrganizationNational 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
DepartmentLNM纳/微系统力学与物理力学
Classification二类/Q2
Citation statistics
Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47024
Collection非线性力学国家重点实验室
Corresponding AuthorZhao, YP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Recommended Citation
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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