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Electrorheology and creep-recovery behavior of conducting polythiophene/poly(oxymethylene)-blend suspensions

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Abstract

Electrorheological properties and creep-recovery behavior of polythiophene/polyoxymethylene-blend having PT(50%)/POM(50%) composition were investigated. Particle size, conductivity and dielectric values were measured to be 24.77 μm, 3.85 × 10−5 S·m−1 and 26.75, respectively. Sedimentation ratio was measured to be 64% at the end of 16 days. The effects of dispersed particle volume fraction, external electric field strength, shear rate, frequency and temperature on ER properties and storage modulus of PT/POM-blend/silicone oil (SO) suspensions were examined. Enhancement were observed in the electric field viscosities of the suspensions and thus they were classified as a smart material. Shear thinning non-Newtonian viscoelastic behavior was determined for PT/POM-blend/SO system. Further, time-dependent deformation was examined by creep-recovery tests and recoverable viscoelastic deformation established.

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Authors and Affiliations

  1. Smart Materials Research Lab, Chemistry Department, Gazi University, Ankara, Turkey

    Ozlem Erol, H. Ibrahim Unal & Bekir Sari

Authors
  1. Ozlem Erol
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  2. H. Ibrahim Unal
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  3. Bekir Sari
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Correspondence to H. Ibrahim Unal.

Additional information

This work was financially supported by Turkish Scientific and Technological Research Council (No. 107 T 711).

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Erol, O., Unal, H.I. & Sari, B. Electrorheology and creep-recovery behavior of conducting polythiophene/poly(oxymethylene)-blend suspensions. Chin J Polym Sci 30, 16–25 (2012). https://doi.org/10.1007/s10118-012-1091-9

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  • DOI: https://doi.org/10.1007/s10118-012-1091-9

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