Author, as appears in the article.: Formentin, Pilar; Acosta, Laura K; Marsal, Lluis F
Department: Enginyeria Electrònica, Elèctrica i Automàtica
URV's Author/s: Acosta Capilla, Laura Karen / Formentín Vallés, Pilar / Marsal Garví, Luis Francisco
Keywords: Wettability Surface modification Oleophilic surface Nanoporous anodic alumina Hydrophobicity Anodic alumina wettability surface modification solid-surfaces resistance oleophilic surface oil nanowires hydrophobicity fabrication arrays anodization adhesion
Abstract: Hydrophobic/oleophilic nanoporous anodic alumina substrates were fabricated by two-step anodization method following of chemical modification with 1H, 1H, 2H, 2H-perfluorooctyltrichlorosilane (FOTS). Surface morphology was characterized using a scanning electron microscopy. The influence of the topography and the pore size of the surface in the contact angle measurements with different solvents have been studied. The water repellence capacity of the nanoporous anodic alumina structure as fabricated depends on pore diameter but, there is a critical value of pore size beyond which the water contact angle decrease. After chemical modification of the surface, this effect is not observed. The porous topography of the material is not an advantage for the oleophibicity. The CA values for the non-porous surface using different solvents are lower than the structured surface. The results obtained in this study can be used to desire wettability properties. Modified NAA exhibit hydrophobicity and at the same time permeability for solvents with low surface tension.
Thematic Areas: Química Odontología Medicina ii Materials science, multidisciplinary Materials science (miscellaneous) Materials science (all) Materials science Materiais Interdisciplinar Geociências General materials science Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Engenharias i Condensed matter physics Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Biotecnología Biodiversidade Astronomia / física
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: laurakaren.acosta@urv.cat lluis.marsal@urv.cat pilar.formentin@urv.cat pilar.formentin@urv.cat
Author identifier: 0000-0002-5976-1408
Record's date: 2024-10-12
Papper version: info:eu-repo/semantics/publishedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Materials Chemistry And Physics. 302 127686-
APA: Formentin, Pilar; Acosta, Laura K; Marsal, Lluis F (2023). Hydrophobic-oleophilic surfaces based on chemical modification of nanoporous alumina. Materials Chemistry And Physics, 302(), 127686-. DOI: 10.1016/j.matchemphys.2023.127686
Entity: Universitat Rovira i Virgili
Journal publication year: 2023
Publication Type: Journal Publications
Repositori URV