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Ricocheting Droplets Moving on Super‐Repellent Surfaces

Droplet bouncing on repellent solid surfaces (e.g., the lotus leaf effect) is a common phenomenon that has aroused interest in various fields. However, the scenario of a droplet bouncing off another droplet (either identical or distinct chemical composition) while moving on a solid material (i.e., r...

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Autores principales: Pan, Shuaijun, Guo, Rui, Richardson, Joseph J., Berry, Joseph D., Besford, Quinn A., Björnmalm, Mattias, Yun, Gyeongwon, Wu, Ruoxi, Lin, Zhixing, Zhong, Qi‐Zhi, Zhou, Jiajing, Sun, Qiang, Li, Jianhua, Lu, Yanbing, Dong, Zhichao, Banks, Margaret Katherine, Xu, Weijian, Jiang, Jianhui, Jiang, Lei, Caruso, Frank
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6839626/
https://www.ncbi.nlm.nih.gov/pubmed/31728297
http://dx.doi.org/10.1002/advs.201901846
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author Pan, Shuaijun
Guo, Rui
Richardson, Joseph J.
Berry, Joseph D.
Besford, Quinn A.
Björnmalm, Mattias
Yun, Gyeongwon
Wu, Ruoxi
Lin, Zhixing
Zhong, Qi‐Zhi
Zhou, Jiajing
Sun, Qiang
Li, Jianhua
Lu, Yanbing
Dong, Zhichao
Banks, Margaret Katherine
Xu, Weijian
Jiang, Jianhui
Jiang, Lei
Caruso, Frank
author_facet Pan, Shuaijun
Guo, Rui
Richardson, Joseph J.
Berry, Joseph D.
Besford, Quinn A.
Björnmalm, Mattias
Yun, Gyeongwon
Wu, Ruoxi
Lin, Zhixing
Zhong, Qi‐Zhi
Zhou, Jiajing
Sun, Qiang
Li, Jianhua
Lu, Yanbing
Dong, Zhichao
Banks, Margaret Katherine
Xu, Weijian
Jiang, Jianhui
Jiang, Lei
Caruso, Frank
author_sort Pan, Shuaijun
collection PubMed
description Droplet bouncing on repellent solid surfaces (e.g., the lotus leaf effect) is a common phenomenon that has aroused interest in various fields. However, the scenario of a droplet bouncing off another droplet (either identical or distinct chemical composition) while moving on a solid material (i.e., ricocheting droplets, droplet billiards) is scarcely investigated, despite it having fundamental implications in applications including self‐cleaning, fluid transport, and heat and mass transfer. Here, the dynamics of bouncing collisions between liquid droplets are investigated using a friction‐free platform that ensures ultrahigh locomotion for a wide range of probing liquids. A general prediction on bouncing droplet–droplet contact time is elucidated and bouncing droplet–droplet collision is demonstrated to be an extreme case of droplet bouncing on surfaces. Moreover, the maximum deformation and contact time are highly dependent on the position where the collision occurs (i.e., head‐on or off‐center collisions), which can now be predicted using parameters (i.e., effective velocity, effective diameter) through the concept of an effective interaction region. The results have potential applications in fields ranging from microfluidics to repellent coatings.
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spelling pubmed-68396262019-11-14 Ricocheting Droplets Moving on Super‐Repellent Surfaces Pan, Shuaijun Guo, Rui Richardson, Joseph J. Berry, Joseph D. Besford, Quinn A. Björnmalm, Mattias Yun, Gyeongwon Wu, Ruoxi Lin, Zhixing Zhong, Qi‐Zhi Zhou, Jiajing Sun, Qiang Li, Jianhua Lu, Yanbing Dong, Zhichao Banks, Margaret Katherine Xu, Weijian Jiang, Jianhui Jiang, Lei Caruso, Frank Adv Sci (Weinh) Full Papers Droplet bouncing on repellent solid surfaces (e.g., the lotus leaf effect) is a common phenomenon that has aroused interest in various fields. However, the scenario of a droplet bouncing off another droplet (either identical or distinct chemical composition) while moving on a solid material (i.e., ricocheting droplets, droplet billiards) is scarcely investigated, despite it having fundamental implications in applications including self‐cleaning, fluid transport, and heat and mass transfer. Here, the dynamics of bouncing collisions between liquid droplets are investigated using a friction‐free platform that ensures ultrahigh locomotion for a wide range of probing liquids. A general prediction on bouncing droplet–droplet contact time is elucidated and bouncing droplet–droplet collision is demonstrated to be an extreme case of droplet bouncing on surfaces. Moreover, the maximum deformation and contact time are highly dependent on the position where the collision occurs (i.e., head‐on or off‐center collisions), which can now be predicted using parameters (i.e., effective velocity, effective diameter) through the concept of an effective interaction region. The results have potential applications in fields ranging from microfluidics to repellent coatings. John Wiley and Sons Inc. 2019-09-12 /pmc/articles/PMC6839626/ /pubmed/31728297 http://dx.doi.org/10.1002/advs.201901846 Text en © 2019 The Authors. Published by WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Full Papers
Pan, Shuaijun
Guo, Rui
Richardson, Joseph J.
Berry, Joseph D.
Besford, Quinn A.
Björnmalm, Mattias
Yun, Gyeongwon
Wu, Ruoxi
Lin, Zhixing
Zhong, Qi‐Zhi
Zhou, Jiajing
Sun, Qiang
Li, Jianhua
Lu, Yanbing
Dong, Zhichao
Banks, Margaret Katherine
Xu, Weijian
Jiang, Jianhui
Jiang, Lei
Caruso, Frank
Ricocheting Droplets Moving on Super‐Repellent Surfaces
title Ricocheting Droplets Moving on Super‐Repellent Surfaces
title_full Ricocheting Droplets Moving on Super‐Repellent Surfaces
title_fullStr Ricocheting Droplets Moving on Super‐Repellent Surfaces
title_full_unstemmed Ricocheting Droplets Moving on Super‐Repellent Surfaces
title_short Ricocheting Droplets Moving on Super‐Repellent Surfaces
title_sort ricocheting droplets moving on super‐repellent surfaces
topic Full Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6839626/
https://www.ncbi.nlm.nih.gov/pubmed/31728297
http://dx.doi.org/10.1002/advs.201901846
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