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Title: Synergistic toughening of epoxy with carbon nanotubes and graphene oxide for improved long-term performance
Authors: Li, Yuanqing
Umer, Rehan
Isakovic, Abdel
Samad, Yarjan Abdul
Zheng, Lianxi
Liao, Kin
Issue Date: 2013
Source: Li, Y., Umer, R., Isakovic, A., Samad, Y. A., Zheng, L., & Liao, K. (2013). Synergistic toughening of epoxy with carbon nanotubes and graphene oxide for improved long-term performance. RSC Advances, 3(23), 8849-8856.
Series/Report no.: RSC Advances
Abstract: Epoxy based nanocomposites using graphene oxide (GO) sheets dispersed multi-walled carbon nanotubes (CNTs) as combination fillers were prepared using an in situ polymerization technique. A remarkable synergetic effect was observed between CNTs and GO sheets which improved the mechanical properties of the epoxy. It was confirmed by optical and field-emission scanning electron microscopy (FESEM) images that the dispersion of CNTs in epoxy matrix can be significantly improved by adding GO sheets. The overall mechanical properties of CNT–GO/epoxy composites were greatly enhanced with only adding 0.04 wt% (percent by weight) CNTs and 0.2 wt% GO sheets. Moreover, the fatigue and creep rupture lives of pure epoxy was also significantly increased by the addition of GO dispersed CNTs. Approximately a 950% improvement in fatigue life, and 400% improvement in creep rupture life were observed at the applied stress levels tested.
ISSN: 2046-2069
DOI: 10.1039/c3ra22300k
Schools: School of Mechanical and Aerospace Engineering 
Rights: © 2013 The Royal Society of Chemistry.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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