Flexural behavior of carbon nanotube-modified epoxy/basalt composites

서지정보

· 발행기관 : 한국탄소학회
· 수록지 정보 : Carbon Letters / 12권 / 3호
· 저자명 : ManTaeKim, KyongYopRhee

목차

1. Introduction
2. Experimental
3. Results and Discussion
4. Conclusions
Acknowledgements
References

초록

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.

영어초록

The use of carbon nanotubes (CNTs) as a reinforcing material in a polymer matrix has increasedin various industries. In this study, the flexural behavior of CNT-modified epoxy/basalt (CNT/epoxy/basalt) composites is investigated. The effects of CNT modificationwith 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 silanizedCNT/epoxy/basalt multi-scale composites. After the flexural tests, the fracture surfaces ofthe specimens were examined via scanning electron microscopy (SEM) to investigate thefracture mechanisms of the CNT/epoxy/basalt multi-scale composites with respect to theCNT modification process. The flexural properties of the epoxy/basalt composites were improvedby the addition of CNTs. The flexural modulus and strength of the silane-treatedCNT/epoxy/basalt multi-scale composites increased by approximately 54% and 34%, respectively,compared to those of epoxy/basalt composites. A SEM examination of the fracturesurfaces revealed that the improvement in the flexural properties of the silane-treatedCNT/epoxy/basalt multi-scale composites could be attributed to the improved dispersion ofthe CNTs in the epoxy.

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