Title :
Piezoelectricity and polarization in acrylonitrile/methylacrylate copolymer
Author :
Kuenstler, Wolfgan ; Von Berlepsch, Hans ; Wedel, Armin ; Danz, Rudi ; Geiss, Detlev
Author_Institution :
Inst. of Polymer Chem., Acad. of Sci., Teltow, East Germany
Abstract :
The piezoelectric strain coefficient d31 of stretched and unstretched acrylonitrile/methylacrylate copolymer films has been investigated with respect to dependence on poling conditions. A maximum value of d31≈3 pC/N is obtained for stretched films. The time stability of piezoelectricity is relatively low. A hysteresis loop of electric displacement versus electric field has been observed for the first time, indicating ferroelectric-like behavior
Keywords :
dielectric hysteresis; dielectric polarisation; piezoelectric materials; polymer films; acrylonitrile/methylacrylate copolymer; electric displacement; electric field; ferroelectric-like behavior; films; hysteresis loop; piezoelectric strain coefficient; polarization; poling conditions; stretched; time stability; unstretched; Capacitive sensors; Chemistry; Computer aided instruction; Hysteresis; Piezoelectric films; Piezoelectric polarization; Piezoelectricity; Polymer films; Strontium; Temperature;
Conference_Titel :
Electrets, 1988. (ISE 6) Proceedings., 6th International Symposium on (IEEE Cat. No.88CH2593-2)
Conference_Location :
Oxford
DOI :
10.1109/ISE.1988.38585
