Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/27781

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dc.contributor.authorOliveira, Fernando-
dc.contributor.authorZille, Andrea-
dc.contributor.authorSouto, A. Pedro-
dc.date.accessioned2014-02-03T17:03:02Z-
dc.date.available2014-02-03T17:03:02Z-
dc.date.issued2014-
dc.identifier01694332en_US
dc.identifier.citationOliveira, Fernando Ribeiro; Zille, Andrea; Souto, Antonio Pedro. Dyeing mechanism and optimization of polyamide 6,6 functionalized with double barrier discharge (DBD) plasma in air, Applied Surface Science, 293, 177-186, 2014.por
dc.identifier.issn0169-4332por
dc.identifier.urihttps://hdl.handle.net/1822/27781-
dc.description.abstractThe physico-chemical improvements occasioned by DBD plasma discharge in dyeing process of polyamide 6,6 (PA66) fibers were investigated. The SEM, fluorescence microscopy, UV–vis spectroscopy, surface energy, FTIR, XPS and pH of aqueous extracts confirm the high polar functionalization of PA66 fibers due to plasma incorporation of oxygen atoms from atmospheric air. DBD plasma-generated reactive species preferentially break the C N bonds, and not the aliphatic C-C chain of PA66. Formation of low-molecular weight acidic molecules that act as dye “carrier” and creation of micro-channels onto PA66 surface seems to favor dye diffusion into the fiber cores. Plasma treatment allows high level of direct dye diffusion and fixation in PA66 fibers at lower temperatures and shorter dyeing times than traditional dyeing methods.por
dc.description.sponsorshipFernando Oliveira (SFRH/BD/65254/2009) acknowledges Fundacdo para a Ciencia e Tecnologia, Portugal, for its doctoral grant financial support. Andrea Zille (C2011-UMINHO-2C2T-01) acknowledges funding from Programa Compromisso para a Ciencia 2008, Portugal.por
dc.language.isoengpor
dc.publisherElsevier 1por
dc.rightsopenAccesspor
dc.subjectDielectric barrier discharge (DBD)por
dc.subjectDyeing mechanismpor
dc.subjectDirect dyepor
dc.subjectSurface characterizationpor
dc.subjectPlasmapor
dc.subjectPolyamidepor
dc.subjectNylonpor
dc.subjectXPSpor
dc.titleDyeing mechanism and optimization of polyamide 6,6 functionalized with double barrier discharge (DBD) plasma in airpor
dc.typearticle-
dc.peerreviewedyespor
dc.relation.publisherversionhttp://ac.els-cdn.com/S016943321302415X/1-s2.0-S016943321302415X-main.pdf?_tid=de4b2ec2-8cf5-11e3-bb28-00000aacb35d&acdnat=1391447517_6e74e4035045762261abaacfeddb9258por
oaire.citationStartPage177por
oaire.citationEndPage186por
oaire.citationIssue293por
oaire.citationTitleApplied Surface Sciencepor
oaire.citationVolume293por
dc.date.updated2014-01-31T11:31:34Z-
dc.identifier.doi10.1016/j.apsusc.2013.12.126por
dc.subject.wosScience & Technologypor
sdum.journalApplied Surface Sciencepor
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