| The effect of sharp solid edges on the droplet wettability | |
Wang ZL(王占龙); Lin K(林岿) ; Zhao YP(赵亚溥)
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| Corresponding Author | Zhao, Ya-Pu([email protected]) |
| Source Publication | JOURNAL OF COLLOID AND INTERFACE SCIENCE
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| 2019-09-15 | |
| Volume | 552Pages:563-571 |
| ISSN | 0021-9797 |
| Abstract | Understanding the role of pinning force in droplet dynamic wetting is of critical importance for surface science studies. Generally, the pinning force is only related to the surface tension and the change of contact angle. However, there is an obvious correlation between the pinning force and the surface geometry. In this paper, the relation between the surface geometry and contact line pinning was studied with systematical experiments and theoretical analysis. We compared the samples with different edge angles and carried out plenty experiments with different liquids. Meanwhile, the theoretical analysis and molecular simulation were carried out. The results show that the sharp edge has a strong pinning effect on the contact line and can significantly change the contact angle and wetting state of droplets. The maximum contact angle of droplet has a linear relation with the edge angle of substrate. The formula of pinning force was revised to consider the impact of surface topography. According to the relationship between surface defect and contact line, we proposed a model to classify the cases of contact line pinning for the first time. Our research will deepen the understanding of contact line pinning and provide help for potentially industrial production designs. (C) 2019 Elsevier Inc. All rights reserved. |
| Keyword | Droplet wettability Contact angle Sharp edge Contact line pinning |
| DOI | 10.1016/j.jcis.2019.05.081 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000481566500057 |
| WOS Keyword | CONTACT LINE ; SURFACE ; ANGLE ; CONDENSATION ; HYSTERESIS ; RESISTANCE ; TRANSPORT ; LIQUIDS |
| WOS Research Area | Chemistry |
| WOS Subject | Chemistry, Physical |
| Funding Project | National Natural Science Foundation of China (NSFC)[U1562105] ; National Natural Science Foundation of China (NSFC)[11372313] ; Chinese Academy of Sciences (CAS) through CAS Interdisciplinary Innovation Team Project ; CAS Key Research Program of Frontier Sciences[QYZDJ-SSW-JSC019] ; CAS Strategic Priority Research Program[XDB22040401] |
| Funding Organization | National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) through CAS Interdisciplinary Innovation Team Project ; CAS Key Research Program of Frontier Sciences ; CAS Strategic Priority Research Program |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | Zhao, Ya-Pu |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/79730 |
| Collection | 非线性力学国家重点实验室 |
| Recommended Citation GB/T 7714 | Wang ZL,Lin K,Zhao YP. The effect of sharp solid edges on the droplet wettability[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2019,552:563-571.Rp_Au:Zhao, Ya-Pu |
| APA | 王占龙,林岿,&赵亚溥.(2019).The effect of sharp solid edges on the droplet wettability.JOURNAL OF COLLOID AND INTERFACE SCIENCE,552,563-571. |
| MLA | 王占龙,et al."The effect of sharp solid edges on the droplet wettability".JOURNAL OF COLLOID AND INTERFACE SCIENCE 552(2019):563-571. |
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| Jp2019323.pdf（2694KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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