Effect of Low Molecular Weight Oxidized Materials and Nitrogen Groups on Adhesive Joints of Polypropylene Treated by a Cold Atmospheric Plasma Jet

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dc.contributor.authorPolášková, Kateřinacs
dc.contributor.authorKlíma, Milošcs
dc.contributor.authorJeníková, Zdeňkacs
dc.contributor.authorBlahová, Luciecs
dc.contributor.authorZajíčková, Lenkacs
dc.coverage.issue24cs
dc.coverage.volume13cs
dc.date.accessioned2022-03-21T15:56:09Z
dc.date.available2022-03-21T15:56:09Z
dc.date.issued2021-12-15cs
dc.description.abstractPolypropylene is a typical representative of synthetic polymers that, for many applications including adhesive joints, requires an increase in wettability and chemical surface reactivity. Plasma processing offers efficient methods for such surface modifications. A particular disadvantage of the plasma jets can be the small plasma area. Here, we present a cold atmospheric plasma radio-frequency slit jet developed with a width of 150 mm applied to polypropylene plasma treatment in Ar, Ar/O-2 and Ar/N2 We identified two main parameters influencing the tensile strength of adhesive joints mediated by epoxy adhesive DP 190, nitrogen content, and the amount of low molecular weight oxidized materials (LMWOMs). Nitrogen functional groups promoted adhesion between epoxy adhesive DP 190 and the PP by taking part in the curing process. LMWOMs formed a weak boundary layer, inhibiting adhesion by inducing a cohesive failure of the joint. A trade off between these two parameters determined the optimized conditions at which the strength of the adhesive joint increased 4.5 times. Higher adhesion strength was previously observed when using a translational plasma gliding arc plasma jet with higher plasma gas temperatures, resulting in better cross linking of polymer chains caused by local PP melting.en
dc.formattextcs
dc.format.extent4396-1-4396-18cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationPolymers. 2021, vol. 13, issue 24, p. 4396-1-4396-18.en
dc.identifier.doi10.3390/polym13244396cs
dc.identifier.issn2073-4360cs
dc.identifier.other176798cs
dc.identifier.urihttp://hdl.handle.net/11012/204003
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofPolymerscs
dc.relation.urihttps://www.mdpi.com/2073-4360/13/24/4396cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2073-4360/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectcold atmospheric plasmaen
dc.subjectplasma treatmenten
dc.subjectadhesionen
dc.subjectpolypropyleneen
dc.subjectX-ray photoelectron spectroscopyen
dc.subjectwater contact angleen
dc.titleEffect of Low Molecular Weight Oxidized Materials and Nitrogen Groups on Adhesive Joints of Polypropylene Treated by a Cold Atmospheric Plasma Jeten
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-176798en
sync.item.dbtypeVAVen
sync.item.insts2022.03.21 16:56:09en
sync.item.modts2022.03.21 16:14:17en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé nízkodimenzionální nanomateriálycs
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav teoretické a experimentální elektrotechnikycs
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