Rational design of static wetting on roughness-engineered heterogeneous surfaces

Surface roughness and chemical composition are crucial in controlling the static wetting properties of surfaces. Here, conventional surface structuring methods used in Si microfabrication are used as a reference to analyze the impact of precisely engineered surface roughness. The static wettability...

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Detalles Bibliográficos
Autores: Balaguer, Gerard Marti, Serra-Peralta, Marc, Rius, Gemma
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/395951
Acceso en línea:http://hdl.handle.net/10261/395951
Access Level:acceso abierto
Palabra clave:Physics
Fluids & Plasmas
Mechanics
http://metadata.un.org/sdg/9
Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
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spelling Rational design of static wetting on roughness-engineered heterogeneous surfacesReplication data for Rational design of static wetting on roughness-engineered heterogeneous surfacesBalaguer, Gerard MartiSerra-Peralta, MarcRius, GemmaPhysicsFluids & PlasmasMechanicshttp://metadata.un.org/sdg/9Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovationSurface roughness and chemical composition are crucial in controlling the static wetting properties of surfaces. Here, conventional surface structuring methods used in Si microfabrication are used as a reference to analyze the impact of precisely engineered surface roughness. The static wettability of rough chemically heterogeneous surfaces is experimentally studied through contact angle measurements and compared against computational simulations to categorize the wetting behavior of water droplets. Heterogeneous samples are observed to already show significant dependence on the surface fraction covered by each material. Furthermore, owing to the presence of a resist layer on top of the Si pillars, intermediate states between the Wenzel (W) and Cassie-Baxter (CB) models are observed. Consistent with these models, we find that local chemical modifications of microstructured surfaces are crucial for controlling their surface wettability properties. Additionally, a comparison of equivalent microstructures made of Si or polydimethylsiloxane (PDMS) reveals the quantitative impact of the hydrophilic/hydrophobic nature of the material on the evolution of the wetting properties with increasing roughness factors. While Si surfaces behave according to the W model, PDMS surfaces show intermediate wetting states at significantly lower roughness levels. Bubbles trapped beneath water droplets demonstrate the existence of intermediate states that cannot be defined by either the W or CB models. By combining experimental results with finite element simulations, we not only demonstrate wettability control through specific roughness and chemical modifications but also provide insight into how these parameters interact to accurately predict and adjust static wetting properties.This work was partially funded by the European Space Agency (ESA) CORA-MAP program, project WHISKIES and Ayudas Ramon y Cajal Ref. RyC-2026-21412 granted to G. Rius by the MICINN-AEI. The IMB-CNM-CSIC is supported by the María de Maetzu Centres of Excellence programme CEX2023-001397-M funded by MCINN-AEI. G. M. Balaguer acknowledges the UAB and the MICINN for the FPU predoctoral grant (FPU019/04322) and M. Serra-Peralta acknowledges JAE Intro grant by CSIC. This work used the Spanish ICTS Network MICRONANOFABS.Peer reviewedAmerican Institute of PhysicsMinisterio de Ciencia, Innovación y Universidades (España)Agencia Estatal de Investigación (España)Consejo Superior de Investigaciones Científicas (España)European Commission0000-0002-5888-66710000-0002-8000-87010000-0003-0552-1043Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/395951reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/Ramon y Cajal/2026-21412/http://hdl.handle.net/10261/395947https://doi.org/10.1063/5.0237554Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3959512026-05-22T06:33:51Z
dc.title.none.fl_str_mv Rational design of static wetting on roughness-engineered heterogeneous surfaces
Replication data for Rational design of static wetting on roughness-engineered heterogeneous surfaces
title Rational design of static wetting on roughness-engineered heterogeneous surfaces
spellingShingle Rational design of static wetting on roughness-engineered heterogeneous surfaces
Balaguer, Gerard Marti
Physics
Fluids & Plasmas
Mechanics
http://metadata.un.org/sdg/9
Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
title_short Rational design of static wetting on roughness-engineered heterogeneous surfaces
title_full Rational design of static wetting on roughness-engineered heterogeneous surfaces
title_fullStr Rational design of static wetting on roughness-engineered heterogeneous surfaces
title_full_unstemmed Rational design of static wetting on roughness-engineered heterogeneous surfaces
title_sort Rational design of static wetting on roughness-engineered heterogeneous surfaces
dc.creator.none.fl_str_mv Balaguer, Gerard Marti
Serra-Peralta, Marc
Rius, Gemma
author Balaguer, Gerard Marti
author_facet Balaguer, Gerard Marti
Serra-Peralta, Marc
Rius, Gemma
author_role author
author2 Serra-Peralta, Marc
Rius, Gemma
author2_role author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia, Innovación y Universidades (España)
Agencia Estatal de Investigación (España)
Consejo Superior de Investigaciones Científicas (España)
European Commission
0000-0002-5888-6671
0000-0002-8000-8701
0000-0003-0552-1043
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Physics
Fluids & Plasmas
Mechanics
http://metadata.un.org/sdg/9
Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
topic Physics
Fluids & Plasmas
Mechanics
http://metadata.un.org/sdg/9
Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
description Surface roughness and chemical composition are crucial in controlling the static wetting properties of surfaces. Here, conventional surface structuring methods used in Si microfabrication are used as a reference to analyze the impact of precisely engineered surface roughness. The static wettability of rough chemically heterogeneous surfaces is experimentally studied through contact angle measurements and compared against computational simulations to categorize the wetting behavior of water droplets. Heterogeneous samples are observed to already show significant dependence on the surface fraction covered by each material. Furthermore, owing to the presence of a resist layer on top of the Si pillars, intermediate states between the Wenzel (W) and Cassie-Baxter (CB) models are observed. Consistent with these models, we find that local chemical modifications of microstructured surfaces are crucial for controlling their surface wettability properties. Additionally, a comparison of equivalent microstructures made of Si or polydimethylsiloxane (PDMS) reveals the quantitative impact of the hydrophilic/hydrophobic nature of the material on the evolution of the wetting properties with increasing roughness factors. While Si surfaces behave according to the W model, PDMS surfaces show intermediate wetting states at significantly lower roughness levels. Bubbles trapped beneath water droplets demonstrate the existence of intermediate states that cannot be defined by either the W or CB models. By combining experimental results with finite element simulations, we not only demonstrate wettability control through specific roughness and chemical modifications but also provide insight into how these parameters interact to accurately predict and adjust static wetting properties.
publishDate 2024
dc.date.none.fl_str_mv 2024
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/395951
url http://hdl.handle.net/10261/395951
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/Ramon y Cajal/2026-21412/
http://hdl.handle.net/10261/395947
https://doi.org/10.1063/5.0237554
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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