Topography-induced symmetry transition of droplets on quasi-periodically patterned surfaces

doi:10.1039/c8sm00591e

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Topography-induced symmetry transition of droplets on quasi-periodically patterned surfaces
	Chen EH(陈恩惠); Yuan QZ(袁泉子); Zhao YP(赵亚溥)
刊名	SOFT MATTER
	2018-08-14
卷号	14 期号:30 页码:6198-6205
ISSN号	1744-683X
DOI	10.1039/c8sm00591e
英文摘要	Quasi-periodic structures of quasicrystals yield novel effects in diverse systems. However, there is little investigation on employing quasi-periodic structures in morphology control. Here, we show the use of quasi-periodic surface structures in controlling the transition of liquid droplets. Although surface structures seem random-like, we find that on these surfaces, droplets spread to well-defined 5-fold symmetric shapes and the symmetry of droplet shapes spontaneously restores during spreading, hitherto unreported in the morphology control of droplets. To obtain physical insights into these symmetry transitions, we conduct energy analysis and perform systematic experiments by varying the properties of both liquid droplets and patterned surfaces. The results show the dominant factors in determining droplet shapes to be surface topography and the self-similarity of the surface structure. Quantified results of the droplet spreading process show distinct dynamics from the spreading experiments on periodically micropatterned surfaces. Our findings significantly advance the control capability of the droplet morphology. Such a quasi-periodic patterning strategy can offer a new method to achieve complex patterns, and may be used to model patterns in the study of rough surfaces.
分类号	一类
URL标识	查看原文
WOS关键词	MICRODECORATED SURFACES ; ROUGH SURFACES ; CONTACT LINE ; WETTABILITY ; CRYSTALS ; DYNAMICS ; LIQUID ; WATER ; MODEL
WOS研究方向	Chemistry, Physical ; Materials Science, Multidisciplinary ; Physics, Multidisciplinary ; Polymer Science
语种	英语
WOS记录号	WOS:000449199000004
资助机构	National Natural Science Foundation of China (NSFC) [U1562105, 11722223, 11672300] ; Chinese Academy of Sciences (CAS) Interdisciplinary Innovation Team Project ; CAS Key Research Program of Frontier Sciences [QYZDJ-SSW-JSC019] ; CAS Strategic Priority Research Program [XDB22040401]
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/78161]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.[Chen, Enhui 2.Yuan, Quanzi 3.Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Chen EH,Yuan QZ,Zhao YP. Topography-induced symmetry transition of droplets on quasi-periodically patterned surfaces[J]. SOFT MATTER,2018,14(30):6198-6205.
APA	陈恩惠,袁泉子,&赵亚溥.(2018).Topography-induced symmetry transition of droplets on quasi-periodically patterned surfaces.SOFT MATTER,14(30),6198-6205.
MLA	陈恩惠,et al."Topography-induced symmetry transition of droplets on quasi-periodically patterned surfaces".SOFT MATTER 14.30(2018):6198-6205.