Citation: Ozlem Erol, H. Ibrahim Unal, Bekir Sari. ELECTRORHEOLOGY AND CREEP-RECOVERY BEHAVIOR OF CONDUCTING POLYTHIOPHENE/POLY(OXYMETHYLENE)-BLEND SUSPENSIONS[J]. Chinese Journal of Polymer Science, ;2012, 30(1): 16-25. doi: 10.1007/s10118-012-1091-9 shu

ELECTRORHEOLOGY AND CREEP-RECOVERY BEHAVIOR OF CONDUCTING POLYTHIOPHENE/POLY(OXYMETHYLENE)-BLEND SUSPENSIONS

Corresponding author: H. Ibrahim Unal,
Received Date: 14 January 2011
Revised Date: 21 March 2011

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

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 m, 3.85 10-5 Sm-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.
- Conducting polythiophene/poly(oxymethylene) Blends,
- Electrorheogical fluids,
- Creep-recovery behavior
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