Macromolecular Research

The Polymer Society of Korea (한국고분자학회)
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Novel Smart Polymeric Composites for Thermistors and Electromagnetic Wave Shielding Effectiveness from TiC Loaded Styrene-Butadiene Rubber

  • Sung, Yong-Kiel (Department of Chemistry, College of Science, Dongguk University) ;
  • Farid EI-Tantawy (Department of Physics, Faculty of Science, Suez Canal University)
  • Published : 2002.12.01
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Abstract

The electrical conductivity during vulcanization process was measured as a function of time for the system of TiC loaded styrene-butadiene rubber (SBR) composites. The phenomenon of negative and positive temperature coefficients of conductivity and its conduction mechanism were also studied for the SBR polymeric composites. The current-voltage characteristics of the polymeric composites were non-linear in high voltage and showed a switching effect. The effects of temperature on the thermal conductivity and effective dielectric constant were measured. The measured parameters were found to be dependent on TiC concentration. The electromagnetic wave shielding (EMS) of the SBR-TiC polymeric composite was also examined. The SBR filled with TiC could be expected to be promising novel smart polymeric composites for self-electrical heating, temperature sensor, time delay switching, and electro-magnetic wave shielding effectiveness.

Keywords

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