| Dynamic polygonal spreading of a droplet on a lyophilic pillar-arrayed surface | |
Chen EH; Yuan QZ(袁泉子) ; Huang XF; 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 | JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
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| 2016 | |
| Volume | 30Issue:20Pages:2265-2276 |
| ISSN | 0169-4243 |
| Abstract | We experimentally investigated the dynamic polygonal spreading of droplets on lyophilic pillar-arrayed substrates. When deposited on lyophilic rough surfaces, droplets adopt dynamic evolutions of projected shapes from initial circles to final bilayer polygons. These dynamic processes are distinguished in two regimes on the varied substrates. The bilayer structure of a droplet, induced by micropillars on the surface, was explained by the interaction between the fringe (liquid in the space among the micropillars) and the bulk (upper liquid). The evolution of polygonal shapes, following the symmetry of the pillar-arrayed surface, was analysed by the competition effects of excess driving energy and resistance which were induced by micropillars with increasing solid surface area fraction. Though the anisotropic droplets spread in different regimes, they obey the same scaling law S similar to t(2/3) (S being the wetted area and t being the spreading time), which is derived from the molecular kinetic theory. These results may expand our knowledge of the liquid dynamics on patterned surfaces and assist surface design in practical applications. |
| Keyword | Droplet Spreading Pattern Dynamic Contact Line |
| DOI | 10.1080/01694243.2016.1179824 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000379133600008 |
| WOS Keyword | droplet ; spreading ; pattern ; dynamic ; contact line |
| WOS Research Area | Engineering ; Materials Science ; Mechanics |
| WOS Subject | Engineering, Chemical ; Materials Science, Multidisciplinary ; Mechanics |
| Funding Organization | This work was jointly supported by the National Natural Science Foundation of China [NSFC, grant number U1562105], [grant number 11372313], [grant number 11611130019] and CAS Interdisciplinary Innovation Team Project. |
| Department | LNM纳/微系统力学与物理力学 |
| Classification | Q3 |
| Ranking | True |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/59540 |
| 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 | Chen EH,Yuan QZ,Huang XF,et al. Dynamic polygonal spreading of a droplet on a lyophilic pillar-arrayed surface[J]. JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY,2016,30,20,:2265-2276. |
| APA | Chen EH,袁泉子,Huang XF,赵亚溥,&Zhao, YP .(2016).Dynamic polygonal spreading of a droplet on a lyophilic pillar-arrayed surface.JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY,30(20),2265-2276. |
| MLA | Chen EH,et al."Dynamic polygonal spreading of a droplet on a lyophilic pillar-arrayed surface".JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY 30.20(2016):2265-2276. |
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| a2016-081.pdf（1955KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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