The effect of flow type and chemical functionalization on the dispersion of carbon nanofiber agglomerates in polypropylene

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dc.contributor.authorNovais, R. M.
dc.contributor.authorCovas, J. A.
dc.contributor.authorPaiva, M. C.
dc.date.accessioned2012-05-17T11:21:08Z
dc.date.available2012-05-17T11:21:08Z
dc.date.issued2012-02-02
dc.description.abstractTwo melt mixing methods generating flow with different characteristics are compared to study the dispersion of 5% w/w carbon nanofibers in polypropylene, namely conventional twin-screw extrusion and the simple application of a converging/diverging flow sequence to the composite melt. The effect of nanofiber surface modification and compatibilization with polypropylene modified with maleic anhydride is also studied. The dispersion of the nanofiber agglomerates through the polymer, the electrical properties of the resulting composites and nanofiber/polymer interface achieved under the different mixing conditions are analyzed. The converging/diverging flow sequence generated a better dispersion as compared with the twin-screw extruder.por
dc.description.sponsorshipFundação para a Ciência e a Tecnologia (FCT) - Project POCI/QUI/59835/2004 and PhD Grant SFRH/BD/32189/2006por
dc.distributioninternational
dc.identifier.doi10.1016/j.compositesa.2012.01.017por
dc.identifier.issn1359-835Xpor
dc.identifier.urihttps://hdl.handle.net/1822/19370
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.compositesa.2012.01.017por
dc.rightsrestrictedAccesspor
dc.subjectCarbon fiberpor
dc.subjectPolymer–matrix composites (PMCs)por
dc.subjectElectron microscopypor
dc.subjectSurface treatmentspor
dc.subjectA. Carbon fiberpor
dc.subjectA. Polymer-matrix composites (PMCs)por
dc.subjectD. Electron microscopypor
dc.subjectE. Surface treatmentspor
dc.subject.wosScience & Technologypor
dc.titleThe effect of flow type and chemical functionalization on the dispersion of carbon nanofiber agglomerates in polypropylenepor
dc.typearticle
dspace.entity.typePublicationen
oaire.citationEndPage841por
oaire.citationIssue6por
oaire.citationStartPage833por
oaire.citationTitleComposites : Part Apor
oaire.citationVolume43por
sdum.journalComposites Part A: Applied Science and Manufacturingpor
sdum.publicationstatuspublishedpor

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