Physical ageing of spreading droplets in a viscous ambient phase

Abstract In this work, we study the spontaneous spreading of water droplets immersed in oil and report an unexpectedly slow kinetic regime not described by previous spreading models. We can quantitatively describe the observed regime crossover and spreading rate in the late kinetic regime with an an...

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Autores principales:	Bibin M. Jose, Dhiraj Nandyala, Thomas Cubaud, Carlos E. Colosqui
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Droplet Spreading Nanoscale Topographical Features Crossover Regime Wilhelmy Plate Measurements Physical Aging Phenomenon Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8e51adf66d54400295578cd7a40d9493
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spelling	oai:doaj.org-article:8e51adf66d54400295578cd7a40d94932021-12-02T15:08:51ZPhysical ageing of spreading droplets in a viscous ambient phase10.1038/s41598-018-32392-42045-2322https://doaj.org/article/8e51adf66d54400295578cd7a40d94932018-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-32392-4https://doaj.org/toc/2045-2322Abstract In this work, we study the spontaneous spreading of water droplets immersed in oil and report an unexpectedly slow kinetic regime not described by previous spreading models. We can quantitatively describe the observed regime crossover and spreading rate in the late kinetic regime with an analytical model considering the presence of periodic metastable states induced by nanoscale topographic features (characteristic area ~4 nm2, height ~1 nm) observed via atomic force microscopy. The analytical model proposed in this work reveals that certain combinations of droplet volume and nanoscale topographic parameters can significantly hinder or promote wetting processes such as spreading, wicking, and imbibition.Bibin M. JoseDhiraj NandyalaThomas CubaudCarlos E. ColosquiNature PortfolioarticleDroplet SpreadingNanoscale Topographical FeaturesCrossover RegimeWilhelmy Plate MeasurementsPhysical Aging PhenomenonMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Droplet Spreading Nanoscale Topographical Features Crossover Regime Wilhelmy Plate Measurements Physical Aging Phenomenon Medicine R Science Q
spellingShingle	Droplet Spreading Nanoscale Topographical Features Crossover Regime Wilhelmy Plate Measurements Physical Aging Phenomenon Medicine R Science Q Bibin M. Jose Dhiraj Nandyala Thomas Cubaud Carlos E. Colosqui Physical ageing of spreading droplets in a viscous ambient phase
description	Abstract In this work, we study the spontaneous spreading of water droplets immersed in oil and report an unexpectedly slow kinetic regime not described by previous spreading models. We can quantitatively describe the observed regime crossover and spreading rate in the late kinetic regime with an analytical model considering the presence of periodic metastable states induced by nanoscale topographic features (characteristic area ~4 nm2, height ~1 nm) observed via atomic force microscopy. The analytical model proposed in this work reveals that certain combinations of droplet volume and nanoscale topographic parameters can significantly hinder or promote wetting processes such as spreading, wicking, and imbibition.
format	article
author	Bibin M. Jose Dhiraj Nandyala Thomas Cubaud Carlos E. Colosqui
author_facet	Bibin M. Jose Dhiraj Nandyala Thomas Cubaud Carlos E. Colosqui
author_sort	Bibin M. Jose
title	Physical ageing of spreading droplets in a viscous ambient phase
title_short	Physical ageing of spreading droplets in a viscous ambient phase
title_full	Physical ageing of spreading droplets in a viscous ambient phase
title_fullStr	Physical ageing of spreading droplets in a viscous ambient phase
title_full_unstemmed	Physical ageing of spreading droplets in a viscous ambient phase
title_sort	physical ageing of spreading droplets in a viscous ambient phase
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/8e51adf66d54400295578cd7a40d9493
work_keys_str_mv	AT bibinmjose physicalageingofspreadingdropletsinaviscousambientphase AT dhirajnandyala physicalageingofspreadingdropletsinaviscousambientphase AT thomascubaud physicalageingofspreadingdropletsinaviscousambientphase AT carlosecolosqui physicalageingofspreadingdropletsinaviscousambientphase
_version_	1718388012855853056

Physical ageing of spreading droplets in a viscous ambient phase

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