Korea-Australia Rheology Journal

  • 제13권4호
  • /
  • Pages.197-203
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  • 2001
  • /
  • 1226-119X(pISSN)
  • /
  • 2093-7660(eISSN)
한국유변학회 (The Korean Society of Rheology)
권호 표지

Electrorheology and universal yield stress function of semiconducting polymer suspensions

  • Choi, Hyoung-J. (Department of Polymer Science and Engineering, Inha University) ;
  • Cho, Min-S. (Department of Polymer Science and Engineering, Inha University) ;
  • Kim, Ji-W. (Department of Polymer Science and Engineering, Inha University)
  • 발행 : 2001.12.01
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초록

We reported on the eletrorheological (ER) properties of several semiconducting polymers including poly (p-phenylene) (PPP), poly (acene quinone) radicals (PAQRs), microencapsulated polyaniline (MPANI) and polyaniline (PANI) those we synthesized. The yield stress dependence on electric field strength for the ER fluids using these semiconducting polymers was mainly examined. The yield stress, which is an important design parameter for ER fluids, was observed to satisfy a universal scaling function, allowing that yield stress data for all the ER fluids examined in this study collapse onto a single curve for a broad range of electric field strengths. The proposed scaling function incorporates both the polarization and conductivity models.

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