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dc.rights.license© 2022 by the authors. Licensee MDPI, Basel,
dc.contributor.authorVicente, Adriánes
dc.contributor.authorRivero, Pedro
dc.contributor.authorPalacio, J.
dc.contributor.authorPalomares, F.
dc.contributor.authorRodríguez, Rafaeles
dc.identifier.citationPolymers 14(20): 4356(2022)es
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 applicationses
dc.description.sponsorshipFunding: Project 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. The authors would like to express their grateful acknowledgement for the support received from the Asociación de la Industria Navarra (AIN). In addition, F.J.P acknowledges financial support from Grant PID2021-126169OB-100 funded by MCIN/AEI/10.12039/501100011033 and by “A way of making Europe”.es
dc.publisherMultidisciplinary Digital Publishing Institute (MDPI)es
dc.relationinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-096262-B-C41/ES/MULTIDISCIPLINARY APPROACH FOR THE IMPLEMENTATION OF NEW TECHNOLOGIES TO PREVENT ACCRETION OF ICE ON AIRCRAFTS/es
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationales
dc.subjectCorrosion resistancees
dc.subjectSuper hydrophobices
dc.subjectLow water roll-off anglees
dc.subjectAdhesion resistancees
dc.titleNovel design of superhydrophobic and anticorrosive PTFE and PAA + β − CD composite coating deposited by electrospinning, spin coating and electrospraying techniqueses
dc.contributor.funderAsociación de la Industria Navarra (AIN)es
dc.contributor.funderAgencia Estatal de Investigación (AEI)es
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