Aspect ratio effects of multi-walled carbon nanotubes on electrical, mechanical, and thermal properties of polycarbonate/MWCNT composites
dc.bibliographicCitation.firstPage | 73 | |
dc.bibliographicCitation.issue | 1 | |
dc.bibliographicCitation.journalTitle | Journal of Polymer Science Part B: Polymer Physics | eng |
dc.bibliographicCitation.lastPage | 83 | |
dc.bibliographicCitation.volume | 52 | |
dc.contributor.author | Guo, Jiaxi | |
dc.contributor.author | Liu, Yanjun | |
dc.contributor.author | Prada-Silvy, Ricardo | |
dc.contributor.author | Tan, Yongqiang | |
dc.contributor.author | Azad, Samina | |
dc.contributor.author | Krause, Beate | |
dc.contributor.author | Pötschke, Petra | |
dc.contributor.author | Grady, Brian P. | |
dc.date.accessioned | 2023-10-13T09:22:13Z | |
dc.date.available | 2023-10-13T09:22:13Z | |
dc.date.issued | 2014 | |
dc.description.abstract | Two multi-walled carbon nanotubes (MWCNTs) having relatively high aspect ratios of 313 and 474 with approximately the same diameter were melt mixed with polycarbonate (PC) in a twin-screw conical micro compounder. The effects of aspect ratio on the electrical, mechanical, and thermal properties of the PC/MWCNT composites were investigated. Electrical conductivities and storage moduli of the filled samples are found to be independent of the starting aspect ratio for these high aspect ratio tubes; although the conductivities and storage moduli are still significantly higher than values of composites made with nanotubes having more commercially common aspect ratios of ∼100. Transmission electron microscopy results suggest that melt-mixing reduces these longer nanotubes to the same length, but still approximately two times longer than the length of commercially common aspect ratio tubes after melt-mixing. Molecular weight measurements show that during melt-mixing the longer nanotubes significantly degrade the molecular weight of the polymer as compared to very similar nanotubes with aspect ratio ∼100. Because of the molecular weight reduction glass transition temperatures predictably show a large decrease with increasing nanotube concentration. © 2013 Wiley Periodicals, Inc. | eng |
dc.description.version | acceptedVersion | |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/12474 | |
dc.identifier.uri | https://doi.org/10.34657/11504 | |
dc.language.iso | eng | |
dc.publisher | Hoboken, NJ [u.a.] : Wiley | |
dc.relation.doi | 10.1002/polb.23402 | |
dc.relation.issn | 0887-6266 | |
dc.rights.license | Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. | |
dc.subject.ddc | 530 | |
dc.subject.ddc | 660 | |
dc.subject.other | aspect ratio | eng |
dc.subject.other | carbon nanotubes | eng |
dc.subject.other | electrical conductivity | eng |
dc.subject.other | nanocomposites | eng |
dc.subject.other | percolation threshold | eng |
dc.subject.other | polycarbonates | eng |
dc.subject.other | processing | eng |
dc.title | Aspect ratio effects of multi-walled carbon nanotubes on electrical, mechanical, and thermal properties of polycarbonate/MWCNT composites | eng |
dc.type | Article | eng |
dc.type | Text | eng |
tib.accessRights | openAccess | |
wgl.contributor | IPF | |
wgl.subject | Chemie | |
wgl.type | Zeitschriftenartikel |
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