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Materials 2017, 10(3), 301; doi:10.3390/ma10030301

Improvement of Fracture Toughness in Epoxy Nanocomposites through Chemical Hybridization of Carbon Nanotubes and Alumina

1
School of Materials and Mineral Resources Engineering, Engineering Campus, University Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia
2
Cluster for Polymer Composite (CPC), Science and Engineering Research Center, Engineering Campus, University Sains Malaysia, 14300 Nibong Tebal, Malaysia
*
Author to whom correspondence should be addressed.
Academic Editors: It-Meng (Jim) Low and Marco Morreale
Received: 31 January 2017 / Revised: 22 February 2017 / Accepted: 14 March 2017 / Published: 16 March 2017
(This article belongs to the Special Issue The Failure Micromechanics and Toughening Mechanisms of Materials)
View Full-Text   |   Download PDF [6244 KB, uploaded 16 March 2017]   |  

Abstract

The current study investigated the effect of adding a carbon nanotube–alumina (CNT–Al2O3) hybrid on the fracture toughness of epoxy nanocomposites. The CNT–Al2O3 hybrid was synthesised by growing CNTs on Al2O3 particles via the chemical vapour deposition method. The CNTs were strongly attached onto the Al2O3 particles, which served to transport and disperse the CNTs homogenously, and to prevent agglomeration in the CNTs. The experimental results demonstrated that the CNT–Al2O3 hybrid-filled epoxy nanocomposites showed improvement in terms of the fracture toughness, as indicated by an increase of up to 26% in the critical stress intensity factor, K1C, compared to neat epoxy. View Full-Text
Keywords: polymer nanocomposites; carbon nanotubes; hybrid; chemical vapour deposition polymer nanocomposites; carbon nanotubes; hybrid; chemical vapour deposition
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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. (CC BY 4.0).

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MDPI and ACS Style

Zakaria, M.R.; Abdul Kudus, M.H.; Md. Akil, H.; Zamri, M.H. Improvement of Fracture Toughness in Epoxy Nanocomposites through Chemical Hybridization of Carbon Nanotubes and Alumina. Materials 2017, 10, 301.

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