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Journal of Nanotechnology
Volume 2009, Article ID 759374, 6 pages
http://dx.doi.org/10.1155/2009/759374
Research Article

Effect of MWNTs and SiC-Coated MWNTs on Properties of PEEK/LCP Blend

Materials Science Center, Indian Institute of Technology, Kharagpur 721302, India

Received 18 May 2009; Accepted 2 September 2009

Academic Editor: Charles M. Lukehart

Copyright © 2009 Ganesh Chandra Nayak et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Multiwall carbon nanotubes (MWNTs) were modified with polycarbosilane-derived silicon carbide (SiC) to improve its dispersion in the polymer matrix. PEEK/LCP/MWNTs nanocomposites were prepared by melt blending. TEM images show the improved dispersion of SiC-coated MWNTs against agglomerated structure of pure MWNTs in the blend. FESEM images shows better fibrillation of LCP in presence of SiC-coated MWNTs. TGA reveals that nanocomposites with SiC-coated MWNTs shows higher thermal stability than MWNTs filled blend system. Based on enhanced dispersion, storage modulus, tensile modulus and tensile strength were increased drastically with the incorporation of SiC-coated MWNTs. Glass transition temperature of the nanocomposites shows significant improvement with the incorporation of MWNTs.