Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/55077
Title: Property enhancement of a carbon fiber/epoxy composite by using carbon nanotubes
Authors: Kim, MT
Rhee, KY
Lee, JH
Hui, D
Lau, AKT 
Keywords: Carbon fiber
Wear
Fiber/matrix bond
Surface treatments
Issue Date: 2011
Publisher: Pergamon Press
Source: Composites. Part B, Engineering, 2011, v. 42, no. 5, p. 1257-1261 How to cite?
Journal: Composites. Part B, Engineering 
Abstract: We investigated the effect of carbon nanotube (CNT) modifications on the flexural and wear behaviors of multiscale carbon/CNT/epoxy composites in this study. Carbon/epoxy woven composites and two types of multiscale carbon/CNT/epoxy composites were fabricated by incorporating woven-type carbon fibers into epoxy matrices modified with 2 wt% acid-treated and silane-treated multi-walled carbon nanotubes (MWCNTs). Three-point bending and ball-on-disk wear tests were performed on the three composites. The results showed that the flexural moduli and strengths of carbon/CNT/epoxy composites were greater than those of carbon/epoxy composites, regardless of CNT modification. Specifically, the flexural modulus and strength of the silane-treated specimens were 10% and 15% greater, respectively, than those of the acid-treated samples. The results also showed that the wear properties of carbon/epoxy composites are improved by the addition of CNTs. In addition, the wear properties of silane-treated samples were superior to those of acid-treated samples. Scanning electron microscopic examination of fractured and worn surfaces showed that the improvement in the flexural and wear properties of the silane-treated carbon/CNT/epoxy composites was attributed to the improved dispersion of CNTs in the epoxy and the better interfacial characteristics caused by the silanization of the CNTs.
URI: http://hdl.handle.net/10397/55077
ISSN: 1359-8368
EISSN: 1879-1069
DOI: 10.1016/j.compositesb.2011.02.005
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