Cellular Polymer Ferroelectret: A Review on Their Development and Their Piezoelectric Properties

ABSTRACT Because of their ability to show ferroelectret behavior when exposed to an external electric field, cellular polymers have been recently considered for ferroelectret applications. These cellular polymer films can be produced by stretching or foaming, but depending on the application and con...

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Bibliographic Details
Published inAdvances in polymer technology Vol. 37; no. 2; pp. 468 - 483
Main Authors Mohebbi, Abolfazl, Mighri, Frej, Ajji, Abdellah, Rodrigue, Denis
Format Journal Article
LanguageEnglish
Published London John Wiley & Sons, Inc 01.03.2018
Subjects
Cellular polymers
Fatigue strength
Ferroelectricity
Fillers
Foaming
Modulus
Piezoelectricity
Polyethylene naphthalate
Polyethylene terephthalate
Polymer films
Polypropylene
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Summary:ABSTRACT Because of their ability to show ferroelectret behavior when exposed to an external electric field, cellular polymers have been recently considered for ferroelectret applications. These cellular polymer films can be produced by stretching or foaming, but depending on the application and conditions, different polymers, such as polypropylene (PP), poly(ethylene terephthalate), poly(ethylene naphthalate), poly(tetrafluoro ethylene), cross‐linked PP, and some cyclo‐olefines, have been considered. Nevertheless, cellular PP was the most investigated material because of its outstanding properties such as high piezoelectric d33 coefficient, flexibility, good fatigue resistance, good charge trapping properties, and low cost. In this review, recent advances related to the materials used for ferroelectret applications and their processing are discussed. The effect of different parameters such as pressure, electrical breakdown strength of the gas phase, presence of fillers, and service temperature on the d33 coefficient is presented and discussed.
Bibliography:Contract grant sponsor: Natural Sciences and Engineering Research Council of Canada (NSERC); Contract grant sponsor: Fonds Québécois de la Recherche sur la Nature et les Technologies (FQRNT).
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ISSN:0730-6679
1098-2329
DOI:10.1002/adv.21686