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Appl. Sci. 2016, 6(10), 282; doi:10.3390/app6100282

Effects of Coupling Agents on the Structure and Electrical Properties of PZT-Poly (Vinylidene Fluoride) Composites

Highway School, Chang’an University, Xi’an 710064, China
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Received: 14 June 2016 / Accepted: 20 September 2016 / Published: 3 October 2016
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Abstract

Piezoelectricceramictransducer(PZT)-Poly(vinylidenefluoride)compositeswereprepared by the hot-pressing method. Before addition, PZT particles were firstly modified with two different coupling agents. The micromorphology, microstructure, dielectric properties, and piezoelectric propertiesofthecompositeswerecharacterizedandinvestigated. ResultsindicatedthatPZTparticles were homogeneously dispersed in the poly (vinylidene fluoride) (PVDF) matrix by the addition of coupling agents. The electric properties of PZT-PVDF composites with NDZ-101 were the best. Especially when the volume ratio of the titanate coupling agent NDZ-101 was 1%, the piezoelectric strain constant d33 of PZT-PVDF composites reached maximum value 19.23 pC/N; its relative dielectric constant εr was 67.45; at the same time its dielectric loss tan δ was 0.0766. View Full-Text
Keywords: PZT-PVDF; coupling agents; dielectric properties; piezoelectric properties PZT-PVDF; coupling agents; dielectric properties; piezoelectric properties
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MDPI and ACS Style

Li, R.; Zhang, L.; Shi, Z.; Pei, J. Effects of Coupling Agents on the Structure and Electrical Properties of PZT-Poly (Vinylidene Fluoride) Composites. Appl. Sci. 2016, 6, 282.

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