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A study on the fracture toughness of seawater-absorbed carbon nanotube/epoxy/basalt composites

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2013, 14(3), pp.190-192
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General

김만태 1 Rhee Kyong Yop 2 김현주 3 정동호 3

1(재)구미전자정보기술원
2경희대학교
3해양과학기술연구원

Accredited

ABSTRACT

It has been demonstrated in a previous study that carbon nanotube (CNT)/epoxy/basalt composites produce better flexural properties than epoxy/basalt composites. In this study, mode І fracture tests were conducted using CNT/epoxy/basalt composites with and without seawater absorption in order to investigate the effect of the seawater absorption on the mode I fracture toughness (GIc) of the CNT/epoxy/basalt composites. The results demonstrated that the compliance of the seawater-absorbed specimen was larger than that of the dry specimen at the same crack length, while the opposite result was obtained for the fracture load. The GIc value of the seawater-absorbed CNT/epoxy/basalt composites was approximately 20% lower than that of the dry CNT/epoxy/basalt composites.

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