Electrorheological particles composed of polyaniline core and BaTiO3 layer shell

Wei Jian-hong; Guan Jian-guo; Yuan Run-zhang

doi:10.1007/BF02852629

Journal of Wuhan University of Technology Materials Science Edition ›› 2002, Vol. 17 ›› Issue (1) : 30 -32. DOI: 10.1007/BF02852629

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Electrorheological particles composed of polyaniline core and BaTiO₃ layer shell

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Abstract

Composite particles consisting of polyaniline (PAn) core and barium titanate (BaTiO₃) layer shell were synthesized. The PAn-BaTiO₃ composites particles were characterized with TEM and XRD. The dielectric behavior of particles was tested and the electrorheological (ER) behavior of the suspensions of PAn/BaTiO₃ particles in chlorinated paraffin oil with a 20 vol% was investigated under DC electric field. The results show that the ER effect of composite particle is far stronger than that of pure polyaniline and barium titanate which were synthesized by the same method. pH and thickness of BaTiO₃ have an important influence on the ER effects.

Keywords

polyaniline / barium titanate / core-shell / ER effects

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Wei Jian-hong, Guan Jian-guo, Yuan Run-zhang. Electrorheological particles composed of polyaniline core and BaTiO₃ layer shell. Journal of Wuhan University of Technology Materials Science Edition, 2002, 17(1): 30-32 DOI:10.1007/BF02852629

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