Ultralow percolation threshold in polyamide 6.6/MWCNT composites

dc.bibliographicCitation.firstPage119
dc.bibliographicCitation.journalTitleComposites Science and Technologyeng
dc.bibliographicCitation.lastPage125
dc.bibliographicCitation.volume114
dc.contributor.authorKrause, Beate
dc.contributor.authorBoldt, Regine
dc.contributor.authorHäußler, Liane
dc.contributor.authorPötschke, Petra
dc.date.accessioned2023-10-13T10:10:03Z
dc.date.available2023-10-13T10:10:03Z
dc.date.issued2015
dc.description.abstractWhen incorporating multiwalled carbon nanotubes (MWCNTs) synthesised by the aerosol-CVD method using different solvents into polyamide 6.6 (PA66) by melt mixing an ultralow electrical percolation threshold of 0.04. wt.% was found. This very low threshold was assigned to the specific characteristic of the MWCNTs for which a very high aspect ratio, a good dispersability in aqueous surfactant dispersions, and relatively low oxygen content near the surface were measured. The investigation of the composites by transmission electron microscopy on ultrathin cuts as well as by scanning electron microscopy combined with charge contrast imaging on compression moulded plates illustrated a good MWCNT dispersion within the PA66 matrix and that the very high aspect ratio of the nanotubes remained even after melt processing. Additionally, the thermal behaviour of the PA66 composites was investigated using differential scanning calorimetry (DSC) showing that the addition of only 0.05. wt.% MWCNT leads to an increase of the onset crystallization temperature of 11. K.eng
dc.description.versionacceptedVersion
dc.identifier.urihttps://oa.tib.eu/renate/handle/123456789/12493
dc.identifier.urihttps://doi.org/10.34657/11523
dc.language.isoeng
dc.publisherBarking : Elsevier
dc.relation.doi10.1016/j.compscitech.2015.03.014
dc.relation.issn0266-3538
dc.rights.licenseCC BY-NC-ND 4.0 Unported
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.ddc660
dc.subject.ddc670
dc.subject.otherA. Carbon nanotubeseng
dc.subject.otherA. Polymer-matrix composites (PMCs)eng
dc.subject.otherB. Thermal propertieseng
dc.subject.otherD. Differential scanning calorimetry (DSC)eng
dc.subject.otherScanning/transmission electron microscopy (STEM)eng
dc.titleUltralow percolation threshold in polyamide 6.6/MWCNT compositeseng
dc.typeArticleeng
dc.typeTexteng
tib.accessRightsopenAccess
wgl.contributorIPF
wgl.subjectChemie
wgl.typeZeitschriftenartikel
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