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International Journal of Polymer Science
Volume 2014, Article ID 712637, 6 pages
Research Article

Nanocomposites with Liquid-Like Multiwalled Carbon Nanotubes Dispersed in Epoxy Resin without Solvent Process

1The Contemporary Design and Integrated Manufacturing Technology Laboratory, Northwestern Polytechnical University, Xi’an 710072, China
2School of Natural and Applied Science, Northwestern Polytechnical University, Xi’an 710072, China

Received 25 July 2013; Accepted 2 April 2014; Published 11 June 2014

Academic Editor: Nanda Gopal Sahoo

Copyright © 2014 Xi Zhang 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.


Liquid-like multiwall carbon nanotubes (MWNTs) were prepared with as-received carboxylic MWNTs-COOH and poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide) (PEO-b-PPO-b-PEO) through hydrogen bonding. The sample has liquid-like behavior above 58°C. The MWNTs content is 26.6 wt%. The liquid-like MWNTs nanofluids were incorporated into epoxy matrix with solvent-free process and dispersed well. When the liquid-like MWNTs nanofluids content is up to 1 wt%, the impact toughness of the nanocomposite is 153% higher than the pure epoxy matrix.