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탄소나노튜브 및 카본블랙 강화 고무복합재료의 변형에 의한 결정화가 기계적 특성에 미치는 영향

Effects of Strain-Induced Crystallization on Mechanical Properties of Elastomeric Composites Containing Carbon Nanotubes and Carbon Black

  • 성종환 (영남대학교 기계공학부) ;
  • 류상렬 (영남대학교 기계공학부) ;
  • 이동주 (영남대학교 기계공학부)
  • Sung, Jong-Hwan (School of Mechanical Engineering, Yeungnam University) ;
  • Ryu, Sang-Ryeoul (School of Mechanical Engineering, Yeungnam University) ;
  • Lee, Dong-Joo (School of Mechanical Engineering, Yeungnam University)
  • 투고 : 2010.12.14
  • 심사 : 2011.07.04
  • 발행 : 2011.09.01

초록

고무복합재료에 대해 변형에 의한 결정화(SIC)가 기계적 특성에 미치는 영향을 연신율(${\lambda}$) 및 다중벽 탄소나노튜브(CNT)와 카본블랙(CB)의 함유량을 함수로 하여 연구하였다. 시차 주사 열량(DSC) 분석을 통해 CB 및 CNT의 함유량에 따라 결정화 정도가 증가함을 확인 하였다. 또한 연신율이 증가함에 따라 복합재료의 유리전이온도(Tg)는 증가하였고, 결정화 잠열 값(LHc)은 ${\lambda}$=1.5에서 최대값을 보였다. CNT의 함유량 증가에 따라 기계적 특성과 LHc는 비례관계임을 확인하였다. 열 중량 분석(TGA)을 통해 기지의 소실율은 94.3%였고, 복합재료의 소실율은 보강재의 함유량 증가에 따라 감소하였다. 인장탄성율 비는 고무 내의 CNT 배향으로 인장강도 비보다 높게 나타났다.

과제정보

연구 과제 주관 기관 : 한국과학재단

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피인용 문헌

  1. A review: role of interfacial adhesion between carbon blacks and elastomeric materials vol.18, 2016, https://doi.org/10.5714/CL.2016.18.001
  2. Influence of Carbon Fiber Direction on Mechanical Properties of Milled Carbon Fibers/Carbon Blacks/Natural Rubber Compounds vol.27, pp.2, 2016, https://doi.org/10.14478/ace.2016.1008