Spontaneous dewetting transition of nanodroplets on nanopillared surface
文献类型:期刊论文
作者 | Wang S(王帅)3,4; Wang C(王超)2; Peng ZL(彭志龙)3,4; Chen SH(陈少华)1,3,4 |
刊名 | Nanotechnology |
出版日期 | 2020-05-29 |
卷号 | 31期号:22页码:225502 |
ISSN号 | 0957-4484 |
关键词 | spontaneous dewetting transition nanoscale droplets wettability smart surfaces molecular dynamics simulation |
DOI | 10.1088/1361-6528/ab76f1 |
通讯作者 | Wang, Chao(wangchao@lnm.imech.ac.cn) ; Chen, Shaohua(chenshaohua72@hotmail.com) |
英文摘要 | The spontaneous dewetting transition (SDT) of nanoscale droplets on the nanopillared surface is studied by molecular dynamics simulations. Three typical SDT modes, i.e. condensing, merging and coalescing with flying droplets are observed, and the underlying physical mechanism is clearly revealed by the potential energy analysis of droplets. We find that there exists a dimensionless parameter of the relative critical volume of droplet Ccri which completely controls the SDT of nanodroplets. Furthermore, the Ccri remains constant for geometrically similar surfaces, which indicates an intrinsic similarity of nanoscale SDT. The effect of pillar height, diameter and spacing on SDT has also been studied and it is likely to occur on the surface with longer, wider and thicker pillars, as well as pillars with cone-like shape and larger hydrophobicity. These results should be useful for a complete understanding of the nanoscale SDT and shed light on the design of smart superhydrophobic surfaces. |
分类号 | 二类/Q1 |
WOS关键词 | SUPERHYDROPHOBIC SURFACES ; WETTABILITY ; WENZEL ; WATER ; CONDENSATION ; ADHESION ; DYNAMICS ; GRAPHENE ; CASSIE ; STATES |
资助项目 | NSFC[11872114] ; NSFC[11532013] ; NSFC[11972348] ; NSFC[11602270] |
WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Physics |
语种 | 英语 |
WOS记录号 | WOS:000521478800001 |
资助机构 | NSFC |
其他责任者 | 陈少华,王超 |
源URL | [http://dspace.imech.ac.cn/handle/311007/81682] |
专题 | 力学研究所_非线性力学国家重点实验室 |
作者单位 | 1.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, People’s Republic of China 2.LNM, Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190, People’s Republic of China 3.Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures, Beijing Institute of Technology, Beijing, 100081, People’s Republic of China 4.Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing, 100081, People’s Republic of China |
推荐引用方式 GB/T 7714 | Wang S,Wang C,Peng ZL,et al. Spontaneous dewetting transition of nanodroplets on nanopillared surface[J]. Nanotechnology,2020,31(22):225502. |
APA | Wang S,Wang C,Peng ZL,&Chen SH.(2020).Spontaneous dewetting transition of nanodroplets on nanopillared surface.Nanotechnology,31(22),225502. |
MLA | Wang S,et al."Spontaneous dewetting transition of nanodroplets on nanopillared surface".Nanotechnology 31.22(2020):225502. |
入库方式: OAI收割
来源:力学研究所
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