Surface modification of polymeric materials by cold atmospheric plasma jet

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorKostov, Konstantin Georgiev
dc.creatorNishime, Thalita Mayumi Castaldelli
dc.creatorCastro, Alonso Herman Ricci
dc.creatorToth, A.
dc.creatorHein, Luis Rogerio de Oliveira
dc.date2015-03-18T15:53:17Z
dc.date2016-10-25T20:24:44Z
dc.date2015-03-18T15:53:17Z
dc.date2016-10-25T20:24:44Z
dc.date2014-09-30
dc.date.accessioned2017-04-06T07:02:22Z
dc.date.available2017-04-06T07:02:22Z
dc.identifierApplied Surface Science. Amsterdam: Elsevier Science Bv, v. 314, p. 367-375, 2014.
dc.identifier0169-4332
dc.identifierhttp://hdl.handle.net/11449/116419
dc.identifierhttp://acervodigital.unesp.br/handle/11449/116419
dc.identifier10.1016/j.apsusc.2014.07.009
dc.identifierWOS:000341464100050
dc.identifierhttp://dx.doi.org/10.1016/j.apsusc.2014.07.009
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/927066
dc.descriptionIn this work we report the surface modification of different engineering polymers, such as, polyethylene terephthalate (PET), polyethylene (PE) and polypropylene (PP) by an atmospheric pressure plasma jet (APPJ). It was operated with Ar gas using 10 kV, 37 kHz, sine wave as an excitation source. The aim of this study is to determine the optimal treatment conditions and also to compare the polymer surface modification induced by plasma jet with the one obtained by another atmospheric pressure plasma source the dielectric barrier discharge (DBD). The samples were exposed to the plasma jet effluent using a scanning procedure, which allowed achieving a uniform surface modification. The wettability assessments of all polymers reveal that the treatment leads to reduction of more than 40 degrees in the water contact angle (WCA). Changes in surface composition and chemical bonding were analyzed by x-ray photoelectron spectroscopy (XPS) and Fourier-Transformed Infrared spectroscopy (FTIR) that both detected incorporation of oxygen-related functional groups. Surface morphology of polymer samples was investigated by Atomic Force Microscopy (AFM) and an increase of polymer roughness after the APPJ treatment was found. The plasma-treated polymers exhibited hydrophobic recovery expressed in reduction of the O-content of the surface upon rinsing with water. This process was caused by the dissolution of low molecular weight oxidized materials (LMWOMs) formed on the surface as a result of the plasma exposure. (C) 2014 Elsevier B.V. All rights reserved.
dc.languageeng
dc.publisherElsevier B.V.
dc.relationApplied Surface Science
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAtmospheric pressure plasma jet
dc.subjectPolymer surface modification
dc.subjectWettability
dc.subjectLow molecular weight oxidized material
dc.subjectDielectric barrier discharge
dc.titleSurface modification of polymeric materials by cold atmospheric plasma jet
dc.typeOtro


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