Journal of Innovative Optical Health Sciences, Volume. 7, Issue 6, 1450016(2014)
Lead zirconate (PbZrO3) embedded in natural rubber as electroactive elastomer composites
Perovskite lead zirconate (PbZrO3 T was synthesized in an orthorhombic form at a temperature below the Curie temperature, TC. The orthorhombic form is a noncentrosymmetric structure which is capable of spontaneous polarization. Fourier transform infrared (FTIR) spectra and X-ray diffraction (XRD) patterns confirm the successful synthesis of the lead zirconate; and scanning electron microscopy (SEM) micrographs indicate that PbZrO3 particles are moderately dispersed in the natural rubber (NR) matrix. Without an electrical field, the particles merely act as a ferroelectric filler, which can absorb and store additional stress. Under an electrical field, particle-induced dipole moments are generated, leading to interparticle interaction and a substantial increase in the storage modulus. At a small amount of lead zirconate particulates present in the natural rubber matrix, at a volume fraction of 0.007306, the electrical conductivity increases dramatically by nearly two orders of magnitude at the electrical frequency of 500 kHz.
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Anuvat Sirivat, Karat Petcharoen, Yanee Pornchaisiriarun, Chaleomwut Phansa-Ard, Nuchnapa Tangboriboon. Lead zirconate (PbZrO3) embedded in natural rubber as electroactive elastomer composites[J]. Journal of Innovative Optical Health Sciences, 2014, 7(6): 1450016
Received: Aug. 6, 2013
Accepted: Nov. 15, 2013
Published Online: Jan. 10, 2019
The Author Email: Tangboriboon Nuchnapa (fengnnpt@ku.ac.th)