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.
Highlights
Hybrid organic-inorganic materials have been produced by many methods, such as sol-gel.The influence of siloxane composition on properties of ployimide-silica hybrids has been known
The coupling agent went into public view
This paper carried out various research into two kinds of coupling agents
Summary
Hybrid organic-inorganic materials have been produced by many methods, such as sol-gel. The influence of siloxane composition on properties of ployimide-silica hybrids has been known. The piezoelectric transducer encouraged researchers to explore better piezoelectric materials. The coupling agent went into public view. This paper carried out various research into two kinds of coupling agents. Poly (vinylidene fluoride) (PVDF) had been extensively applied in many areas such as electric industries, microelectronics, acoustic impedance underwater, and so on [1]
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