Sélection de la langue

Gouvernement du Canada / Government of Canada

Recherche

Investigation of a postprocessing method to tailor the mechanical properties of carbon nanotube/polyamide fibers

Par Conseil national de recherches du Canada

DOITrouver le DOI : https://doi.org/10.1002/app.39713
AuteurRechercher : ; Rechercher : 1; Rechercher :
Affiliation
  1. Conseil national de recherches du Canada. Institut des matériaux industriels du CNRC
FormatTexte, Article
SujetCapillary rheometer; Melt-compounding; Multi-walled nanotubes; Nanostructured polymers; Postprocessing methods; Thermal and electrical properties; Thermoplastic fibers; Twin screw extrusion; Carbon; Chains; Electric properties; Extrusion; Fibers; Mechanical properties; Multiwalled carbon nanotubes (MWCN); Polyamides; Polymers; X ray diffraction; Spinning (fibers)
Résumé
The incorporation of carbon nanotubes to thermoplastic fibers can potentially improve mechanical, thermal and electrical properties. In this article, a methodology to tailor the mechanical properties of carbon nanotube/nylon fibers is presented. Multiwalled nanotubes (MWNT) were combined to polyamide 12 through melt compounding and twin-screw extrusion. Pellets containing between 0 and 5.0 wt % MWNT were extruded and subsequently melt spun with a capillary rheometer to produce filaments. To further promote the alignment of the polymer chains and MWNTs, postdrawing parameters were systematically investigated: temperature, drawing speed and elongation. The best improvements in terms of elastic modulus and yield strength were measured at 140°C and 500% elongation, whereas drawing speed was shown to have a negligible effect. It was confirmed through electron microscopy and X-ray diffraction that these enhancements were mainly induced by the alignment of the polymer chains along the fibers' axis. Copyright © 2013 Wiley Periodicals, Inc.
Date de publication
Dans
  • Journal of Applied Polymer Science 130, nº 6 (2013) : 4375–4382.
Langueanglais
Publications évaluées par des pairsOui
Numéro NPARC21269857
Exporter la noticeExporter en format RIS
Signaler une correctionSignaler une correction (s'ouvre dans un nouvel onglet)
Identificateur de l’enregistrement5362caba-861c-4643-9a56-303c15636ccf
Enregistrement créé2013-12-13
Enregistrement modifié2020-04-22
Date de modification :