Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Effects of Graphenes/CNTs Co-reinforcement on Electrical and Mechanical Properties of HDPE Matrix Nanocomposites

  • Kim, Byung-Joo (Nano Material Research Dept., Jeonju Institute of Machinery and Carbon Composites) ;
  • Byun, Joon-Hyung (Composite Materials Lab, Korea Institute of Machinery & Materials) ;
  • Park, Soo-Jin (Dept. of Chemistry, Inha Univ.)
  • Received : 2010.01.26
  • Accepted : 2010.06.18
  • Published : 2010.08.20
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Abstract

In this work, mechanical and electrical properties of graphenes (GP)/carbon nanotubes (CNTs) co-reinforced high density polyethylene (HDPE) matrix composites were studied. The microstructure, morphologies, and electric properties of the composites were evaluated by XRD, TEM, and 4-probe methods, respectively. It was found that the electric resistivity of 0.5 wt %-GP/HDPE was immeasurable, and 2.0 wt %-CNTs/HDPE showed high resistivity ($6.02{\times}10^4{\Omega}{\cdot}cm$). Meanwhile, GP (0.5 wt %)/CNTs (2.0 wt %)/HDPE showed excellent low resistivity ($3.1{\times}10^2{\Omega}{\cdot}cm$). This result indicates that the co-reinforcement systems can dramatically decrease electric resistivity of the carbon/polymer nanocomposites.

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