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Wetting response of KrF laser ablated polyimide surfaces

2010-05-15Artigo científico Acesso aberto
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dc.contributor.authorOliveira, Vitor
dc.contributor.authorNunes, B.
dc.contributor.authorVilar, Rui
dc.date.accessioned2011-11-28T13:13:37Z
dc.date.available2011-11-28T13:13:37Z
dc.date.issued2010-05-15
dc.description.abstractThe wettability of polyimide surfaces microstructured using KrF laser radiation at fluences above the material ablation threshold was studied by static contact angle measurements. The laser-treated surfaces present a morphology consisting of conical features whose dimensions and areal density depend on the fluence. The effect of these parameters on the surface apparent contact angle depends on the wetting regime. When wetting occurs in the homogeneous regime, the apparent contact angle of the treated surfaces increases with the radiation fluence because the cone dimensions increase. In contrast, when wetting occurs in the heterogeneous regime, the apparent contact angle increases with the radiation fluence because the average distance between cones increases. The apparent water contact angle of the laser-treated surfaces can reach values as high as 162 degrees, as compared to 75 degrees for virgin polyimide.por
dc.identifier.citationOliveira V, Nunes B, Vilar R. Wetting response of KrF laser ablated polyimide surfaces. Nuclear Instruments & Methods in Physics Research section B-Beam Interactions with Materials and Atoms. 2010; 268 (10): 1626-1630.por
dc.identifier.issn0168-583X
dc.identifier.urihttp://hdl.handle.net/10400.21/673
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevier Science BVpor
dc.relation.ispartofseries10
dc.subjectExcimer laserpor
dc.subjectPolyimidepor
dc.subjectMicrotexturingpor
dc.subjectWettabilitypor
dc.titleWetting response of KrF laser ablated polyimide surfacespor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceAmsterdampor
oaire.citation.endPage1630por
oaire.citation.issue268por
oaire.citation.startPage1626por
oaire.citation.titleNuclear Instruments & Methods in Physics Research section B-Beam Interactions with Materials and Atomspor
person.familyNameOliveira
person.givenNameVitor
person.identifier.ciencia-idDA1C-25BD-5974
person.identifier.orcid0000-0002-1757-4524
person.identifier.ridA-3058-2009
person.identifier.scopus-author-id7006105706
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication269ff9af-427f-4d1d-949c-cd77cd386e9f
relation.isAuthorOfPublication.latestForDiscovery269ff9af-427f-4d1d-949c-cd77cd386e9f

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