Droplet motion on flexible superhydrophobic porous sponge surface

Droplet capture and release are very significant for droplet manipulation on a superhydrophobic surface. Once the aqueous droplets impact the stiff superhydrophobic surface, they easily detach from the surface and generate chaotic motion without much energy loss. Thus, it is difficult to catch and m...

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Autores principales:	Feng Zhao, Tianyi Li, Lei Wang
Formato:	article
Lenguaje:	EN
Publicado:	AIP Publishing LLC 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/6288732d78fa4413963017059c58fb67
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spelling	oai:doaj.org-article:6288732d78fa4413963017059c58fb672021-12-01T18:52:06ZDroplet motion on flexible superhydrophobic porous sponge surface2158-322610.1063/5.0073249https://doaj.org/article/6288732d78fa4413963017059c58fb672021-11-01T00:00:00Zhttp://dx.doi.org/10.1063/5.0073249https://doaj.org/toc/2158-3226Droplet capture and release are very significant for droplet manipulation on a superhydrophobic surface. Once the aqueous droplets impact the stiff superhydrophobic surface, they easily detach from the surface and generate chaotic motion without much energy loss. Thus, it is difficult to catch and manipulate the droplets falling on these kinds of surfaces. In this study, a droplet was captured after impacting the superhydrophobic porous sponge. Most of the kinetic energy of a falling droplet is transferred into the elastic potential energy of a sponge. The absorbed energy in the deformation process and the elastic modulus of sponge were adjusted by the porosity of the sponge. With the decrease in density, the elastic modulus of the sponge decreases, and the energy loss increases. During the droplet impacting process, the sponge with smaller elastic modulus can obtain much more energy from the droplet, which makes it easy to drag and capture the droplet. This new design also has other potential applications, such as water collection and fog harvest.Feng ZhaoTianyi LiLei WangAIP Publishing LLCarticlePhysicsQC1-999ENAIP Advances, Vol 11, Iss 11, Pp 115214-115214-6 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Feng Zhao Tianyi Li Lei Wang Droplet motion on flexible superhydrophobic porous sponge surface
description	Droplet capture and release are very significant for droplet manipulation on a superhydrophobic surface. Once the aqueous droplets impact the stiff superhydrophobic surface, they easily detach from the surface and generate chaotic motion without much energy loss. Thus, it is difficult to catch and manipulate the droplets falling on these kinds of surfaces. In this study, a droplet was captured after impacting the superhydrophobic porous sponge. Most of the kinetic energy of a falling droplet is transferred into the elastic potential energy of a sponge. The absorbed energy in the deformation process and the elastic modulus of sponge were adjusted by the porosity of the sponge. With the decrease in density, the elastic modulus of the sponge decreases, and the energy loss increases. During the droplet impacting process, the sponge with smaller elastic modulus can obtain much more energy from the droplet, which makes it easy to drag and capture the droplet. This new design also has other potential applications, such as water collection and fog harvest.
format	article
author	Feng Zhao Tianyi Li Lei Wang
author_facet	Feng Zhao Tianyi Li Lei Wang
author_sort	Feng Zhao
title	Droplet motion on flexible superhydrophobic porous sponge surface
title_short	Droplet motion on flexible superhydrophobic porous sponge surface
title_full	Droplet motion on flexible superhydrophobic porous sponge surface
title_fullStr	Droplet motion on flexible superhydrophobic porous sponge surface
title_full_unstemmed	Droplet motion on flexible superhydrophobic porous sponge surface
title_sort	droplet motion on flexible superhydrophobic porous sponge surface
publisher	AIP Publishing LLC
publishDate	2021
url	https://doaj.org/article/6288732d78fa4413963017059c58fb67
work_keys_str_mv	AT fengzhao dropletmotiononflexiblesuperhydrophobicporousspongesurface AT tianyili dropletmotiononflexiblesuperhydrophobicporousspongesurface AT leiwang dropletmotiononflexiblesuperhydrophobicporousspongesurface
_version_	1718404694223618048

Droplet motion on flexible superhydrophobic porous sponge surface

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