Meniscus Shape and Wetting Competition of a Drop between a Cone and a Plane

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题名:	Meniscus Shape and Wetting Competition of a Drop between a Cone and a Plane
作者:	曹恆光;Liang, Yu-En;Weng, Yu-Hsuan;Tsao, Heng-Kwong;Sheng, Yu-Jane
贡献者:	工學院化學工程與材料工程學系
关键词:	geometry;hydrophilicity;hydrophobicity;liquids;New Concepts at the Interface: Novel Viewpoints and Interpretations, Theory and Computations
日期:	2016-08-23
上传时间:	2026-04-21 14:54:01 (UTC+8)
出版者:	American Chemical Society;United States: American Chemical Society
摘要:	摘要： The formation of a liquid bridge between a cone and a plane is related to dip-pen nanolithography. The meniscus shape and rupture process of a liquid meniscus between a cone and a plane are investigated by Surface Evolver, many-body dissipative particle dynamics, and macroscopic experiments. Dependent on the cone geometry, cone-plane separation, and wetting properties of cone and plane, three types of menisci can be observed before rupture and two types of wetting competition outcomes are seen after breakup. It is interesting to find that after rupture, the bulk of the liquid bridge volume is not necessarily retained by the cone which is more wettable. In fact, a sharp hydrophilic cone often loses wetting competition to a hydrophobic plane. To explain our findings, the “apparent” contact angle of the cone is introduced and the behavior of drop-on-cone/plane system is analogous to that of a liquid bridge between two parallel planes based on this concept. 其他題名： Langmuir 出版者： United States: American Chemical Society 出版日期： 2016-08-23 出處： Langmuir, 2016-08, Vol.32 (33), p.8543-8549 資源來源： American Chemical Society (ACS) Journals 版權： Copyright © 2016 American Chemical Society 識別號： ISSN: 0743-7463 識別號： ISSN: 1520-5827 識別號： EISSN: 1520-5827 識別號： DOI: 10.1021/acs.langmuir.6b01990 識別號： PMID: 27483140
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