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dc.contributor.authorGkikas, G.en
dc.contributor.authorBarkoula, N. M.en
dc.contributor.authorPaipetis, A. S.en
dc.date.accessioned2015-11-24T17:33:26Z-
dc.date.available2015-11-24T17:33:26Z-
dc.identifier.issn1359-8368-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/13861-
dc.rightsDefault Licence-
dc.subjectpolymer-matrix composites (pmcs)en
dc.subjectfracture toughnessen
dc.subjectthermal analysisen
dc.subjectmechanical testingen
dc.subjectdispersion of carbon nanotubesen
dc.subjectmechanical-propertiesen
dc.subjectelectrical-propertiesen
dc.subjectmatrix compositesen
dc.subjectsc-15 epoxyen
dc.subjectthermoplastic fibersen
dc.subjectpolymer compositesen
dc.subjectfracture-toughnessen
dc.subjectnanocompositesen
dc.subjectnanoen
dc.subjectfabricationen
dc.titleEffect of dispersion conditions on the thermo-mechanical and toughness properties of multi walled carbon nanotubes-reinforced epoxyen
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.primaryDOI 10.1016/j.compositesb.2012.01.070-
heal.identifier.secondary<Go to ISI>://000306724600018-
heal.languageen-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικώνel
heal.publicationDate2012-
heal.abstractIn this work, multi wall carbon nanotubes (MWCNTs) dispersed in a polymer matrix have been used to enhance the thermo-mechanical and toughness properties of the resulting nanocomposites. Dynamic mechanical analysis (DMA), tensile tests and single edge notch 3-point bending tests were performed on unfilled, 0.5 and 1 wt.% carbon nanotube (CNT)-filled epoxy to identify the effect of loading on the aforementioned properties. The effect of the dispersion conditions has been thoroughly investigated with regard to the CNT content, the sonication time and the total sonication energy input. The CNT dispersion conditions were of key importance for both the thermo-mechanical and toughness properties of the modified systems. Sonication duration of 1 h was the most effective for the storage modulus and glass transition temperature (T-g) enhancement for both 0.5 and I wt.% CNT loadings. The significant increase of the storage modulus and T-g under specific sonication conditions was associated with the improved dispersion and interfacial bonding between the CNTs and the epoxy matrix. Sonication energy was the influencing parameter for the toughness properties. Best results were obtained for 2 h of sonication and 50% sonication amplitude. It was suggested that this level of sonication allowed appropriate dispersion of the CNTs to the epoxy matrices without destroying the CNT's structure. (C) 2012 Elsevier Ltd. All rights reserved.en
heal.publisherElsevieren
heal.journalNameComposites Part B-Engineeringen
heal.journalTypepeer reviewed-
heal.fullTextAvailabilityTRUE-
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)

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