Journal of the Semiconductor & Display Technology (반도체디스플레이기술학회지)

The Korean Society Of Semiconductor & Display Technology (한국반도체디스플레이기술학회)
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Preparation and characteristics of PP/CF/MWCNT nanocomposites

PP/CF/ MWCNT 나노복합체의 제조 및 특성평가

  • Kim, Seung-Beom (Dept. of Applied Chemical Engineering, Korea University of Technology and Education) ;
  • Nam, Byeong-Uk (Dept. of Applied Chemical Engineering, Korea University of Technology and Education) ;
  • Lee, Kyu-Mann (Dept. of Materials Engineering, Korea University of Technology and Education)
  • 김승범 (한국기술교육대학교 응용화학공학과) ;
  • 남병욱 (한국기술교육대학교 응용화학공학과) ;
  • 이규만 (한국기술교육대학교 신소재공학과)
  • Received : 2011.02.28
  • Accepted : 2011.03.15
  • Published : 2011.03.31
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Abstract

Polypropylene(PP)/carbon fiber(CF)/multi-walled carbon nanotube(MWCNT) nanocomposites along with various CF and MWCNT contents were prepared in a Twin screw extruder. Electrical, mechanical property and morphology were investigated with a variation of CF and MWCNT contents. From the surface resistance of PP/CF/MWCNT composites, MWCNT can increase the conductivity of composites compared with PP/CF composites without MWCNT. It is suggested that MWCNT and CF can make the conductive network in the polymer matrix. Flexural modulus and Izod impact strength of the PP/CF/MWCNT composites were improved with the increase of CF contents. Morphology showed that length of CF in polymer matrix was shortened by torque during melt mixing with MWCNT. As a result of this phenomenon, the impact strength of composites was somewhat decreased.

Keywords

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