期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 573, 期 -, 页码 370-375出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2020.03.094
关键词
Colloids; Deposition; Sessile drop; Liquid-liquid interface; Drop drying
资金
- European Research Council (ERC) (European Community's Seventh Framework Programme (FP7/2007-2013)/ERC Grant) [258782]
- Investissements d'Avenir [ANR-10LABX-31, ANR-10-IDEX-0001-02-PSL]
The so-called coffee-ring effect (CRE) is extraordinarily common, problematic in industry and attractively puzzling for researchers, with the accepted rule that it requires two key-ingredients: solvent evaporation and contact line pinning. Here, we demonstrate that the CRE also occurs when the solvent of a pinned sessile drop transfers into another liquid, without involving any evaporation. We show that it shares all characteristic features of the evaporative CRE: solvent transfer-driven transport of solutes to the contact line, ring-shaped deposit, closely-packed particle organization at the contact line, and size-dependent particle sorting. We thus suggest expanding the definition of the coffee-ring effect to any pinned drop having its solvent transferring to an outer medium where the drop compounds cannot be dissolved. (C) 2020 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据