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http://dx.doi.org/10.5714/CL.2011.12.3.177

Flexural behavior of carbon nanotube-modified epoxy/basalt composites  

Kim, Man-Tae (School of Mechanical Engineering, Kyung Hee University)
Rhee, Kyong-Yop (School of Mechanical Engineering, Kyung Hee University)
Publication Information
Carbon letters / v.12, no.3, 2011 , pp. 177-179 More about this Journal
Abstract
The use of carbon nanotubes (CNTs) as a reinforcing material in a polymer matrix has increased in various industries. In this study, the flexural behavior of CNT-modified epoxy/basalt (CNT/epoxy/basalt) composites is investigated. The effects of CNT modification with silane on the flexural properties of CNT/epoxy/basalt composites were also examined. Flexural tests were performed using epoxy/basalt, oxidized CNT/epoxy/basalt, and silanized CNT/epoxy/basalt multi-scale composites. After the flexural tests, the fracture surfaces of the specimens were examined via scanning electron microscopy (SEM) to investigate the fracture mechanisms of the CNT/epoxy/basalt multi-scale composites with respect to the CNT modification process. The flexural properties of the epoxy/basalt composites were improved by the addition of CNTs. The flexural modulus and strength of the silane-treated CNT/epoxy/basalt multi-scale composites increased by approximately 54% and 34%, respectively, compared to those of epoxy/basalt composites. A SEM examination of the fracture surfaces revealed that the improvement in the flexural properties of the silane-treated CNT/epoxy/basalt multi-scale composites could be attributed to the improved dispersion of the CNTs in the epoxy.
Keywords
carbon nanotube/epoxy/basalt woven composites; flexural property;
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