6533b860fe1ef96bd12c349f

RESEARCH PRODUCT

On the role of extensional flow in morphology and property modifications of MWCNT/polyamide-based fibres

Nadka Tzankova DintchevaRossella ArrigoGiorgio NasilloEugenio CaponettiFrancesco Paolo La Mantia

subject

extensional flowcarbon nanotubepolyamide-based fibres

description

Unfilled and MWCNT-filled PA fibers are prepared and the effect of the extensional flow on their mechanical performance and morphological variations is investigated. Morphological analyses using SEM, TEM, and SAXS suggest a stronger orientation of the MWCNTs along the fiber direction with increasing extensional flow. A particular MWCNT bundle formation in the PA drawn nanocomposite fibers is observed for the first time, and a pull-out of the central nanotube in some bundles is noted. The maintenance of the “shish-kebab” structure upon extensional flow is responsible for the mechanical improvements and dimensional stability in MWCNT-filled PA fibers.

yearjournalcountryeditionlanguage
2011-01-01
10.1002/mame.201000355http://hdl.handle.net/10447/56200