Self-Propelled Droplet Removal from Hydrophobic Fiber-Based Coalescers

Physical Review Letters
Kungang ZhangChuan-Hua Chen

Abstract

Fiber-based coalescers are widely used to accumulate droplets from aerosols and emulsions, where the accumulated droplets are typically removed by gravity or shear. This Letter reports self-propelled removal of drops from a hydrophobic fiber, where the surface energy released upon drop coalescence overcomes the drop-fiber adhesion, producing spontaneous departure that would not occur on a flat substrate of the same contact angle. The self-removal takes place above a threshold drop-to-fiber radius ratio, and the departure speed is close to the capillary-inertial velocity at large radius ratios.

References

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Sep 24, 2004·Journal of Colloid and Interface Science·Elise LorenceauDavid Quéré
Nov 13, 2009·Physical Review Letters·Jonathan B Boreyko, Chuan-Hua Chen
Feb 5, 2010·Nature·Yongmei ZhengLei Jiang
Dec 25, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Konrad RykaczewskiKripa K Varanasi
Jul 31, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Kyoo-Chul ParkGareth H McKinley

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Citations

Nov 17, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Moon-Kyung KimNenad Miljkovic
Aug 2, 2016·Applied Physics Letters·Roger L ChavezChuan-Hua Chen
Jan 31, 2019·Advanced Materials·Jing LiZuankai Wang
Nov 26, 2015·Nature Communications·Yahua LiuZuankai Wang
Aug 3, 2019·Soft Matter·R Labbé, C Duprat
Nov 23, 2016·Soft Matter·Alban SauretHoward A Stone
Jul 28, 2017·Journal of the Royal Society, Interface·Fangjie LiuChuan-Hua Chen
Oct 20, 2020·Proceedings. Mathematical, Physical, and Engineering Sciences·Md Erfanul AlamAndrew K Dickerson
May 15, 2021·Physical Chemistry Chemical Physics : PCCP·Aleksandr BashkatovKerstin Eckert
Jun 10, 2021·Nature Communications·Pierre LecointreDavid Quéré
Nov 16, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Jun-Jie HuangYu-Jie Li
Jul 10, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Xukun HeJiangtao Cheng
Jul 19, 2017·ACS Nano·Megan D MulroeJonathan B Boreyko
Jul 22, 2020·Langmuir : the ACS Journal of Surfaces and Colloids·Qi PengNenad Miljkovic
Aug 3, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Hongxia LiTieJun Zhang
Aug 23, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Fang-Fang XieDan-Qi Wang

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