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Formation of Deposition Patterns Induced by the Evaporation of the Restricted Liquid

文献类型：期刊论文

作者Wang FS(王富帅)3,4; Wu, MM1,2; Man, XK1,2; Yuan QZ(袁泉子)3,4
刊名LANGMUIR
出版日期2020-07-28
卷号36期号:29页码:8520-8526
ISSN号0743-7463
DOI10.1021/acs.langmuir.0c01116
通讯作者Yuan, Quanzi(yuanquanzi@lnm.imech.ac.cn)
英文摘要Evaporation-induced self-assembly of colloids or suspensions has received increasing attention. Given its critical applications in many fields of science and industry, we report deposition patterns constructed by the evaporation of the restricted aqueous suspension with polystyrene particles at different substrate temperatures and geometric container dimensions. With the temperature increases, the deposition patterns transition from honeycomb to multiring to island, which is attributed to the competition between the particle deposition rate U-p and the contact line velocity U-CL, and the dimension of the geometric container has an effect on the characteristics of patterns. In this paper, the formation of an ordered multiring pattern is mainly focused on as a result of U-p keeping up with U-CL such that the entire contact line can be pinned, that is, the periodic stick-slip motion of the contact line and the particle sedimentation. Moreover, based on the Onsager principle, we develop a theoretical model to reveal the physical mechanisms behind the multiring phenomena. The position and spacing of rings are measured, which shows that the theoretical prediction agrees well with experiments. We also find that the ring spacing decays exponentially from center to edge experimentally and theoretically. This may not only help us to understand the formation of the deposition patterns but also assist future design and control in practical applications. Evaporation-induced self-assembly of colloids or suspensions has received increasing attention. Given its critical applications in many fields of science and industry, we report deposition patterns constructed by the evaporation of the restricted aqueous suspension with polystyrene particles at different substrate temperatures and geometric container dimensions. With the temperature increases, the deposition patterns transition from honeycomb to multiring to island, which is attributed to the competition between the particle deposition rate U-P and the contact line velocity U-CL, and the dimension of the geometric container has an effect on the characteristics of patterns. In this paper, the formation of an ordered multiring pattern is mainly focused on as a result of U-P keeping up with U-CL such that the entire contact line can be pinned, that is, the periodic stick-slip motion of the contact line and the particle sedimentation. Moreover, based on the Onsager principle, we develop a theoretical model to reveal the physical mechanisms behind the multiring phenomena. The position and spacing of rings are measured, which shows that the theoretical prediction agrees well with experiments. We also find that the ring spacing decays exponentially from center to edge experimentally and theoretically. This may not only help us to understand the formation of the deposition patterns but also assist future design and control in practical applications.
分类号二类
WOS关键词CONTACT-LINE ; POLYMER-SOLUTIONS ; DROPLETS ; STAINS ; FILM
资助项目National Natural Science Foundation of China (NSFC)[11722223] ; National Natural Science Foundation of China (NSFC)[11672300] ; National Natural Science Foundation of China (NSFC)[21822302] ; Chinese Academy of Sciences Key Research Program of Frontier Sciences[QYZDJ-SSWJSC019] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040401]
WOS研究方向Chemistry ; Materials Science
语种英语
WOS记录号WOS:000557757700020
资助机构National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences Key Research Program of Frontier Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
其他责任者Yuan, Quanzi
源URL[http://dspace.imech.ac.cn/handle/311007/84862]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Beihang Univ, Sch Phys, Beijing 100191, Peoples R China
2.Beihang Univ, Ctr Soft Matter Phys & Its Applicat, Beijing 100191, Peoples R China;
3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China;
4.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China;
推荐引用方式
GB/T 7714		 Wang FS,Wu, MM,Man, XK,et al. Formation of Deposition Patterns Induced by the Evaporation of the Restricted Liquid[J]. LANGMUIR,2020,36(29):8520-8526.
APA 王富帅,Wu, MM,Man, XK,&袁泉子.(2020).Formation of Deposition Patterns Induced by the Evaporation of the Restricted Liquid.LANGMUIR,36(29),8520-8526.
MLA 王富帅,et al."Formation of Deposition Patterns Induced by the Evaporation of the Restricted Liquid".LANGMUIR 36.29(2020):8520-8526.

入库方式： OAI收割

来源：力学研究所

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