Effect of amine functionalization of CNF on electrical, thermal, and mechanical properties of epoxy/CNF composites

Karippal, Jeena Jose and Narasimha Murthy, H. N. and Rai, K. S. and Krishna, M. and Sreejith, M. (2010) Effect of amine functionalization of CNF on electrical, thermal, and mechanical properties of epoxy/CNF composites. Polymer Bulletin, 65 (8). pp. 849-861. ISSN 0170-0839

Text (Full Text) Effect of amine functionalization.pdf - Published Version Restricted to Registered users only Download (486kB) | Request a copy

Abstract

This paper presents experimental results of the effect of amine functionalization of carbon nanofibers (CNF) on the electrical, thermal, and mechanical properties of CNF/epoxy composites. The functionalized and non-functionalized CNFs (up to 3 wt%) were dispersed into epoxy using twin screw extruder. The specimens were characterized for electrical resistivities, thermal conductivity (K), UTS, and Vicker's microhardness. The properties of the nanocomposites were compared with that of neat epoxy. The volume conductivity of the specimens increased by E12 S/cm and E09 S/cm in f-CNF/epoxy and CNF/epoxy, respectively, at 3 wt% filler loading. The increase in K for former was 106% at 150 °C, while for the latter it was only 64%. Similarly, UTS increased by 61% vs. 45% and hardness 65% vs. 43%. Tg increased with increase in filler content. SEM examinations showed that functionalization resulted in better dispersion of the nanofibers and hence greater improvement in the studied properties of the nanocomposites.

Item Type:	Article
Subjects:	M Polymer Science > Polymer Science
Divisions:	PG Centre Mandya > Polymer Science
Depositing User:	LA manjunath user
Date Deposited:	05 Jul 2019 10:24
Last Modified:	05 Jul 2019 10:24
URI:	http://eprints.uni-mysore.ac.in/id/eprint/4776

Actions (login required)

View Item