한국수소및신에너지학회논문집 (Transactions of the Korean hydrogen and new energy society)

  • 제32권1호
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  • Pages.86-91
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  • 2021
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
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CNT 함량에 따른 CNT/Epoxy 복합재료 제작 및 모드 1 파괴 인성 평가

Mode 1 Fracture Toughness Test of CNT/Epoxy Composites with Different CNT Content

  • 권동준 (경상대학교 그린에너지융합연구소) ;
  • 유형민 (한국기술교육대학교 기계공학부)
  • KWON, DONG-JUN (Research Institute for Green Energy Convergence Technology (RIGET), Gyeongsang National University) ;
  • YOO, HYEONGMIN (School of Mechanical Engineering, Korea University of Technology and Education (KOREATECH))
  • 투고 : 2021.01.24
  • 심사 : 2021.02.28
  • 발행 : 2021.02.28
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초록

In order to save the energy in vehicles using renewable energy, it is necessary to reduce the weight of parts with polymer matrix composites. Carbon nanotube (CNT) is the nano-scale reinforcement used to increase the interlaminar strength of fiber reinforced composites or enhance the fracture toughness of polymer. However, since the degree of improvement in mechanical properties varies according to the various experimental conditions such as shape of reinforcement, types of matrix and dispersion of reinforcement, research to find the optimal conditions is essentially needed. In this study, CNT/epoxy composites with different CNT concentration were fabricated under the same conditions, and the optimal CNT content (2 wt%) was found through Mode 1 fracture toughness test. Furthermore, through optical microscopy, it was confirmed that the fracture toughness was rather decreased due to the CNT aggregation when the CNT content exceeded 2 wt%.

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참고문헌

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