| 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.
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| Source Publication | COLLOID AND POLYMER SCIENCE
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| 2013-02-01 | |
| Volume | 291Issue:2Pages:307-315 |
| ISSN | 0303-402X |
| Abstract | 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. |
| Keyword | Contact Angle Hysteresis Critical Shear Stress Moving Contact Line Disjoining Pressure Flexible Substrate Molecular Dynamics Simulation |
| Subject Area | 物理力学 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000313737700008 |
| Funding Organization | 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 |
| Department | LNM纳/微系统力学与物理力学 |
| Classification | 二类/Q2 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/47024 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Zhao, 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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