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Preparation, characterization and properties of polycaprolactone diol-functionalized multi-walled carbon nanotube/thermoplastic polyurethane composite

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journal contribution
posted on 11.05.2015 by Qifei Jing, Jia Yan Law, Lay Poh Tan, Vadim Silberschmidt, Lin Li, ZhiLi Dong
Multi-walled carbon nanotubes (MWCNTs) were chemically functionalized to prepare thermoplastic polyurethane (PU) composites with enhanced properties. In order to achieve a high compatibility of functionalized MWCNTs with the PU matrix, polycaprolactone diol (PCL), as one of PU’s monomers, was selectively grafted on the surface of MWCNTs (MWCNT–PCL), while carboxylic acid groups functionalized MWCNTs (MWCNT–COOH) and raw MWCNTs served as control. Both MWCNT–COOH and MWCNT–PCL improved the dispersion of MWCNTs in the PU matrix and interfacial bonding between them at 1 wt% loading fraction. The MWCNT–PCL/PU composite showed the greatest extent of improvement, where the tensile strength and modulus were 51.2% and 33.5% higher than those of pure PU respectively, without sacrificing the elongation at break. The considerable improvement in both mechanical properties and thermal stability of MWCNT–PCL/PU composite should result from the homogeneous dispersion of MWCNT–PCL in the PU matrix and strong interfacial bonding between them.

Funding

The financial support from Institute for Sports Research of Nanyang Technological University (NTU) is appreciated.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING

Volume

70

Pages

8 - 15 (8)

Citation

JING, Q. ... et al, 2015. Preparation, characterization and properties of polycaprolactone diol-functionalized multi-walled carbon nanotube/thermoplastic polyurethane composite. Composites Part A: Applied Science and Manufacturing, 70, pp. 8 - 15.

Publisher

© Elsevier Ltd.

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2015

Notes

This article was published in the journal Composites Part A: Applied Science and Manufacturing [© Elsevier Ltd.] and the definitive version is available at: http://dx.doi.org/10.1016/j.compositesa.2014.10.028 This manuscript version is made available under the CC-BY-NC-ND 4.0 licensehttp://creativecommons.org/licenses/by-nc-nd/4.0/

ISSN

1359-835X

Language

en

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