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Piezo and dielectric properties of PHB–PZT composite
Author(s) -
Malmonge J.A.,
Malmonge L.F.,
Fuzari G.C.,
Malmonge S.M.,
Sakamoto W.K.
Publication year - 2009
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.20719
Subject(s) - materials science , dielectric , differential scanning calorimetry , composite material , lead zirconate titanate , composite number , piezoelectricity , amorphous solid , ceramic , dielectric loss , crystallization , dielectric spectroscopy , sintering , ferroelectricity , chemical engineering , chemistry , physics , optoelectronics , organic chemistry , electrode , electrochemistry , engineering , thermodynamics
Abstract Flexible piezoelectric composite films made of poly(3‐hydroxybutyrate) (PHB) in powder form and lead zirconate titanate (PZT) ceramic powder were obtained by mixing both powders and pressing at 180°C. The effect of PZT on PHB crystallization was investigated using differential scanning calorimetry (DSC). The relative dielectric constant and dielectric loss factor were analyzed by dielectric spectroscopy and the α‐relaxation of amorphous phase of PHB was observed. After suitable polarization, the composite film displayed piezoelectric activity indicating the possibility of using that material as a sensor. POLYM. COMPOS., 2009. © 2008 Society of Plastics Engineers