Effect of carbon nanotube lengths on the mechanical properties of epoxy resin: an experimental study

Inam, Fawad, Vo, Thuc, Jones, Jonathan and Lee, Xu (2013) Effect of carbon nanotube lengths on the mechanical properties of epoxy resin: an experimental study. Journal of Composite Materials, 47 (19). pp. 2321-2330. ISSN 0021-9983

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Abstract

Batches of multi-walled carbon nanotubes having an average length of 2091 nm were aggressively tip-ultrasonicated to produce shortened carbon nanotubes having average lengths of 1689 nm, 1332 nm, 992 nm and 503 nm. Raman spectroscopic analysis confirmed that the shortened carbon nanotubes retained their crystallinity after the shortening process. Carbon nanotubes were then dispersed in the epoxy matrix using high-shear mixing technique (calendering). The mechanical properties were measured for the cured epoxy–0.1 wt% carbon nanotube nanocomposites having carbon nanotubes of different lengths. It was found that the nanocomposites containing long carbon nanotubes (2091 nm and 1689 nm) possess higher tensile strength, elastic modulus, fracture strain and fracture toughness as compared to nanocomposites containing short carbon nanotubes (1332 nm, 992 nm and 503 nm).

Item Type:	Article
Additional Information:	Published online before print version.
Uncontrolled Keywords:	Polymer nanocomposites, carbon nanotubes, mechanical properties
Subjects:	F200 Materials Science H300 Mechanical Engineering H400 Aerospace Engineering J400 Polymers and Textiles
Department:	Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User:	Fawad Inam
Date Deposited:	23 May 2013 08:38
Last Modified:	10 Oct 2019 22:45
URI:	http://nrl.northumbria.ac.uk/id/eprint/12641

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