Journal
POLYMER
Volume 52, Issue 9, Pages 2070-2074Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2011.03.002
Keywords
Failure analysis; Carbon nanotubes; Epoxy
Categories
Funding
- National Key Basic Research Program of China [2007CB936803]
- Ministry of Science and Technology of China [2008DFA51220]
- Chinese Academy of Sciences [KJCX2-YW-M01]
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The failure analysis of reinforcing elements is of great significance to understand the structure-property relationship in polymer composites. Herein, we reported an improved methodology to ascertain and contrast the failure modes from one pair of homologous fracture surfaces of multi-walled carbon nanotubes (MWCNTs)/epoxy samples at high-magnification using scanning electron microscopy. Three possible failure modes of MWCNTs, i.e. pullout, immediate fracture and sliding-fracture, were proposed to account for the fractographic observation. Based on this approach, the failure modes of MWCNTs before and after surface modification were quantitatively discussed. (C) 2011 Elsevier Ltd. All rights reserved.
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