Novel design of superhydrophobic and anticorrosive PTFE and PAA + B - CD composite coating deposited by electrospinning, spin coating and electrospraying techniques

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dc.contributor.authorVicente Gómara, Adrián
dc.contributor.authorRivero Fuente, Pedro J.
dc.contributor.authorUrdiroz Urricelqui, Unai
dc.contributor.authorGarcía, Paloma
dc.contributor.authorMora, Julio
dc.contributor.authorPalomares, F. Javier
dc.contributor.authorRodríguez Trías, Rafael
dc.contributor.departmentIngenieríaes_ES
dc.contributor.departmentIngeniaritzaeu
dc.contributor.departmentInstitute for Advanced Materials and Mathematics - INAMAT2en
dc.date.accessioned2023-04-24T13:53:51Z
dc.date.available2023-04-24T13:53:51Z
dc.date.issued2022
dc.date.updated2023-04-24T13:43:14Z
dc.description.abstractA superhydrophobic composite coating consisting of polytetrafluoroethylene (PTFE) and poly(acrylic acid)+ β-cyclodextrin (PAA + β-CD) was prepared on an aluminum alloy AA 6061T6 substrate by a three-step process of electrospinnig, spin coating, and electrospraying. The electrospinning technique is used for the fabrication of a polymeric binder layer synthesized from PAA + β-CD. The superhydrophilic characteristic of the electrospun PAA + β-CD layer makes it suitable for the absorption of an aqueous suspension with PTFE particles in a spin-coating process, obtaining a hydrophobic behavior. Then, the electrospraying of a modified PTFE dispersion forms a layer of distributed PTFE particles, in which a strong bonding of the particles with each other and with the PTFE particles fixed in the PAA + β-CD fiber matrix results in a remarkable improvement of the particles adhesion to the substrate by different heat treatments. The experimental results corroborate the important role of obtaining hierarchical micro/nano multilevel structures for the optimization of superhydrophobic surfaces, leading to water contact angles above 170°, very low contact angle of hysteresis (CAH = 2°) and roll-off angle (αroll−off < 5°). In addition, a superior corrosion resistance is obtained, generating a barrier to retain the electrolyte infiltration. This study may provide useful insights for a wide range of applications.en
dc.description.sponsorshipProject RTI2018-096262-B-C41–MAITAI, funded by MCIN/AEI/10.13039/501100011033 and by ERDF “A way of making Europe”. Grant PRE2019-090656: funded by MCIN/AEI/10.13039/501100011033 and by ESF “Investing in your future”. Project PJUPNA1929 funded by MCIN/AEI/10.13039/501100011033 and by ERDF “A way of making Europe” and by BEI.en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationVicente, A., Rivero, P. J., Urdiroz, U., García, P., Mora, J., Palacio, J. F., Palomares, F. J., & Rodríguez, R. (2022). Novel design of superhydrophobic and anticorrosive ptfe and paa + β − cd composite coating deposited by electrospinning, spin coating and electrospraying techniques. Polymers, 14(20), 4356. https://doi.org/10.3390/polym14204356en
dc.identifier.doi10.3390/polym14204356
dc.identifier.issn2073-4360
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/45149
dc.language.isoengen
dc.publisherMDPIen
dc.relation.ispartofPolymers 2022, 14(20), 4356en
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-096262-B-C41/ES/
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI//PRE2019-090656/
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI//PJUPNA1929/
dc.relation.publisherversionhttps://doi.org/10.3390/polym14204356
dc.rights© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.en
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectElectrospinningen
dc.subjectElectrosprayingen
dc.subjectPTFEen
dc.subjectPAA + β-CDen
dc.subjectCorrosion resistanceen
dc.subjectSuper hydrophobicn
dc.subjectLow water roll-off angleen
dc.subjectAdhesion resistanceen
dc.titleNovel design of superhydrophobic and anticorrosive PTFE and PAA + B - CD composite coating deposited by electrospinning, spin coating and electrospraying techniquesen
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication
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