Atmospheric pressure plasma hydrophilic modification of a silicone surface

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Show simple item record Encinas García, Noemí Dillingham, R. G. Oakley, B. R. Abenojar Buendía, Juana Martínez Casanova, Miguel Ángel Pantoja Ruiz, Mariola 2016-05-25T08:02:55Z 2016-05-25T08:02:55Z 2011-04
dc.identifier.bibliographicCitation The journal of adhesion (Special Issue: Papers from the 1st International Conference on Structural Adhesive Bonding, AB2011, Porto, Portugal, 7-8 July 2011), vol. 88, issue 4-6, pp. 321-336
dc.identifier.issn 0021-8464
dc.description Presented in part at the 1st International Conference on Structural Adhesive Bonding (AB2011), Porto, Portugal, 7-8 July 2011.
dc.description.abstract The aim of this study was the creation of a silicone hydrophilic surface prior to bonding. Modifications in wettability and adhesion properties of silicone were performed with an atmospheric plasma torch (APPT). Surface energy variations of the substrate, both pristine and APPT-treated, were evaluated through contact angle measurements, studying the hydrophobic recovery of the samples up to 24 hours of aging. Compositional and topographical changes induced by APPT and aging were studied by attenuated total multiple reflection mode infrared spectroscopy (ATR-FTIR), X-ray photoelectron spectroscopy (XPS), mechanical profilometry, scanning electron microscopy (SEM), and atomic force microscopy (AFM), respectively. Adhesion pull-off tests were performed on silicone-aluminium stud joints using three commercial adhesives, which were Sikaflex®-252, polyurethane-based, Loctite®-330, urethane methacrylate ester-based acrylic, and Terostat®-922, modified silicone. Although experimental data of all the bonding specimens led to an undesired adhesive failure, it was found that APPT-treated samples gave higher adhesive strength than the pristine ones, which was explained by the higher surface energy, thus more wettable material, after APPT. This effect remained stable for just 1 h, when the substrate began its hydrophobic recovery, reaching the original surface energy values after 24 h of aging.
dc.description.sponsorship Financial support from the Universidad Carlos III de Madrid Foundation and Chemistry and Materials Technological Institute ‘‘Álvaro Alonso Barba’’ are acknowledged, as well as from the Universidad Pontificia Comillas (ICAI) (Spain).
dc.format.extent 16
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Taylor & Francis
dc.rights © Taylor & Francis Group, LLC
dc.subject.other Atmospheric pressure plasma
dc.subject.other Hydrophobic recovery
dc.subject.other Polymeric adhesion
dc.subject.other Silicone
dc.title Atmospheric pressure plasma hydrophilic modification of a silicone surface
dc.type article
dc.type conferenceObject
dc.subject.eciencia Materiales
dc.identifier.doi 10.1080/00218464.2012.659994
dc.rights.accessRights openAccess
dc.type.version acceptedVersion
dc.relation.eventdate 2011-07-07
dc.relation.eventplace Oporto, Portugal
dc.relation.eventtitle 1st International Conference on Structural Adhesive Bonding (AB2011)
dc.relation.eventtype proceeding
dc.identifier.publicationfirstpage 321
dc.identifier.publicationissue 4-6
dc.identifier.publicationlastpage 336
dc.identifier.publicationtitle The journal of adhesion
dc.identifier.publicationvolume 88
dc.identifier.uxxi CC/0000014234
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