Wettability of semispherical droplets on layered elastic gradient soft substrates

Abstract Research on the wettability of soft matter is one of the most urgently needed studies in the frontier domains, of which the wetting phenomenon of droplets on soft substrates is a hot subject. Scholars have done considerable studies on the wetting phenomenon of single-layer structure, but it...

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Autores principales:	Yonglin Yang, Xing Li, Wenshuai Wang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2efce90b486f4cd29eaf978f9cab6330
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spelling	oai:doaj.org-article:2efce90b486f4cd29eaf978f9cab63302021-12-02T14:16:26ZWettability of semispherical droplets on layered elastic gradient soft substrates10.1038/s41598-020-80575-92045-2322https://doaj.org/article/2efce90b486f4cd29eaf978f9cab63302021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-80575-9https://doaj.org/toc/2045-2322Abstract Research on the wettability of soft matter is one of the most urgently needed studies in the frontier domains, of which the wetting phenomenon of droplets on soft substrates is a hot subject. Scholars have done considerable studies on the wetting phenomenon of single-layer structure, but it is noted that the wetting phenomenon of stratified structure is ubiquitous in nature, such as oil exploitation from geological structural layers and shale gas recovery from shale formations. Therefore, the wettability of droplets on layered elastic gradient soft substrate is studied in this paper. Firstly, considering capillary force, elastic force and surface tension, the constitutive equation of the substrate in the vector function system is derived by using the vector function system in cylindrical coordinates, and the transfer relation of layered structure is obtained. Further, the integral expressions of displacement and stress of double Bessel function are given. Secondly, the numerical results of displacement and stress are obtained by using the numerical formula of double Bessel function integral. The results show that the deformation of the substrate weakens with the increase of the elastic modulus, also the displacement and stress change dramatically near the contact line, while the variation is flat when the contact radius is far away from the droplet radius.Yonglin YangXing LiWenshuai WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-17 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yonglin Yang Xing Li Wenshuai Wang Wettability of semispherical droplets on layered elastic gradient soft substrates
description	Abstract Research on the wettability of soft matter is one of the most urgently needed studies in the frontier domains, of which the wetting phenomenon of droplets on soft substrates is a hot subject. Scholars have done considerable studies on the wetting phenomenon of single-layer structure, but it is noted that the wetting phenomenon of stratified structure is ubiquitous in nature, such as oil exploitation from geological structural layers and shale gas recovery from shale formations. Therefore, the wettability of droplets on layered elastic gradient soft substrate is studied in this paper. Firstly, considering capillary force, elastic force and surface tension, the constitutive equation of the substrate in the vector function system is derived by using the vector function system in cylindrical coordinates, and the transfer relation of layered structure is obtained. Further, the integral expressions of displacement and stress of double Bessel function are given. Secondly, the numerical results of displacement and stress are obtained by using the numerical formula of double Bessel function integral. The results show that the deformation of the substrate weakens with the increase of the elastic modulus, also the displacement and stress change dramatically near the contact line, while the variation is flat when the contact radius is far away from the droplet radius.
format	article
author	Yonglin Yang Xing Li Wenshuai Wang
author_facet	Yonglin Yang Xing Li Wenshuai Wang
author_sort	Yonglin Yang
title	Wettability of semispherical droplets on layered elastic gradient soft substrates
title_short	Wettability of semispherical droplets on layered elastic gradient soft substrates
title_full	Wettability of semispherical droplets on layered elastic gradient soft substrates
title_fullStr	Wettability of semispherical droplets on layered elastic gradient soft substrates
title_full_unstemmed	Wettability of semispherical droplets on layered elastic gradient soft substrates
title_sort	wettability of semispherical droplets on layered elastic gradient soft substrates
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2efce90b486f4cd29eaf978f9cab6330
work_keys_str_mv	AT yonglinyang wettabilityofsemisphericaldropletsonlayeredelasticgradientsoftsubstrates AT xingli wettabilityofsemisphericaldropletsonlayeredelasticgradientsoftsubstrates AT wenshuaiwang wettabilityofsemisphericaldropletsonlayeredelasticgradientsoftsubstrates
_version_	1718391656631238656

Wettability of semispherical droplets on layered elastic gradient soft substrates

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