Rheological, Morphological and Electrical Properties of Polycarbonate/Multi-walled Carbon Nanotube Composites

  • Han, Mi-Sun (Department of Chemical and Biological Engineering, Korea University) ;
  • Sung, Yu-Taek (Department of Chemical and Biological Engineering, Korea University) ;
  • Chung, Ji-Woong (Department of Chemical and Biological Engineering, Korea University) ;
  • Kim, Woo-Nyon (Department of Chemical and Biological Engineering, Korea University) ;
  • Lee, Heon-Sang (LG Chemical Ltd.) ;
  • Kum, Chong-Ku (LG Chemical Ltd.)
  • Published : 2006.10.13

Abstract

Rheological and electrical properties of the polycarbonate (PC) / multi-walled carbon nanotube (MWNT) were studied. The MWNT was funtoinalized by treating with the hydrogen peroxide ($H_{2}O_{2}$). The electrical conductivity showed higher value for the PC/MWNT ($H_{2}O_{2}$ treated, freeze drying) composites compared that of the PC/MWNT ($H_{2}O_{2}$ treated, thermal drying) composites. From the results of the morphological, rheological, and electrical properties of the PC/MWNT composites, it is suggested that the electrical and rheological properties of the PC/MWNT composites are affected by the MWNT-MWNT network structure which is related with the MWNT morphologies such as the degree of aggregation and aspect ratio of the MWNT.

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