Title :
Investigation of hot-pressed PVDF films by pyroelectric probing method
Author :
Bravina, L. ; Morozovsky, Nicolai V. ; Hilczer, Bozena ; Kulek, Jan
Author_Institution :
Inst. of Phys., Ukrainian Acad. of Sci., Kiev, Ukraine
Abstract :
The effect of thermal treatment and room temperature aging on the frequency dependence of the pyroelectric response of polarized hot-pressed PVDF (polyvinylidene fluoride) and P(VDF/TFE) films is studied. The nonuniform pyroelectric activity and the low-frequency pyroelectric resonance are found to diminish with the aging process. Applications of the films with homogeneous and nonhomogeneous distribution of the pyroelectric activity within the film are discussed
Keywords :
electrets; polymer films; pyroelectricity; P(VDF/TFE) films; electret; frequency dependence; hot-pressed PVDF films; low-frequency pyroelectric resonance; polyvinylidene fluoride; pyroelectric probing method; room temperature aging; thermal treatment; Aging; Electrodes; Frequency; Physics; Piezoelectric films; Polarization; Polymers; Pyroelectricity; Resonance; Temperature;
Conference_Titel :
Electrets, 1991. (ISE 7) Proceedings., 7th International Symposium on (Cat. No.91CH3029-6)
Conference_Location :
Berlin
Print_ISBN :
0-7803-0112-9
DOI :
10.1109/ISE.1991.167243
