Articles
  • Electrical characteristics of multi-walled carbon nanotube-polyethylene composites by catalyst and gas control

  • Suyoung Parka, Sun-Woo Choib,* and Changhyun Jinc,d,*

  • aDepartment of Aviation Maintenance Engineering, Far East University, Chungbuk 27601, Korea
    bDepartment of Materials and Metallurgical Engineering, Kangwon National University, Samcheok 25913, Korea
    cDivision of Materials Science and Engineering, Hanyang University, Seoul 04763, Korea
    dThe Research Institute of Industrial Science, Hanyang University, Seoul 04763, Korea

Abstract

In this study, the electrical conductivity of multi-walled carbon nanotubes (MWCNTs) and polyethylene synthesized by an extrusion process was evaluated. The MWCNTs used exhibited differences in their dispersion characteristics depending on the type of catalyst or synthesis gas used. Thus, the choice of catalyst or synthesis gas significantly affect the physicochemical state of the final MWCNTs and MWCNT-based composites. In this investigation, the characteristics of MWCNTs were analyzed in four cases by introducing ethylene and propylene gas to each catalyst synthesized using deposition precipitation and spray drying methods. The MWCNT-based composites synthesized using the catalyst prepared by deposition precipitation and the ethylene synthesis gas showed the best electrical conductivity. In principle, the morphologies of the MWCNTs indicate that the smaller the aggregate size and bundle thickness, the better the electrical conductivity of the MWCNT composites. This implies that the network is well-formed.


Keywords: MWCNT, Polyethylene, Deposition precipitation, Spray drying, Electrical conductivity

This Article

  • 2019; 20(5): 464-469

    Published on Oct 31, 2019

  • 10.36410/jcpr.2019.20.5.464
  • Received on Mar 1, 2019
  • Revised on Jul 12, 2019
  • Accepted on Jul 12, 2019

Correspondence to

  • Sun-Woo Choib , Changhyun Jinc,d

  • bDepartment of Materials and Metallurgical Engineering, Kangwon National University, Samcheok 25913, Korea
    cDivision of Materials Science and Engineering, Hanyang University, Seoul 04763, Korea
    dThe Research Institute of Industrial Science, Hanyang University, Seoul 04763, Korea
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