Poly(ethylene-co-butylene) functionalized multi walled carbon nanotubes applied in polypropylene nanocomposites

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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A novel functionalized multi walled carbon nanotube (MWCNT) was prepared through grafting with α-azido-poly(ethylene-co-butylene) (PEB-N3). The PEB-N3 was prepared through a two step procedure and grafted onto an industrial grade multi walled carbon nanotube (MWCNT) through a highly efficient nitrene addition. This novel nano filler was melt mixed into polypropylene (PP) and the composite was characterized by FT-IR spectroscopy, Raman spectroscopy, Scanning Electron Microscopy (SEM), Rheology and Dielectric Relaxation Spectroscopy (DRS). The analyses showed that composites with the novel filler had a high degree of discharge from the surface and higher conductivity compared to the pristine filler, illustrating an efficient conductive network in the composites. The composites showed low percolation thresholds of 0.3wt.% (0.15vol.%) as well as improved stability at a range of temperatures from 25–135°C.
Original languageEnglish
JournalEuropean Polymer Journal
Publication date2012
Volume48
Issue4
Pages743-750
ISSN0014-3057
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 5

Keywords

  • Polymer synthesis, Polymer compatibilisation, Nitrene addition, Multi walled carbon nanotubes, Composites, Dielectric Relaxation Spectroscopy
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