کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
724215 | 1461324 | 2015 | 6 صفحه PDF | دانلود رایگان |
• The electret effects on crystallized polymer+ferropiezoelectric composite under electric discharge plasma are investigated.
• First time, the electret potentials difference stabilities of composites are improved by using electric discharge plasma.
• The plasma pre-modification enhances deep trap formation with the high concentration in electret composite.
The fluorine-containing polymer composite filled with piezo-ceramics such as PZT-2, PZT-5A, PZT-8 were prepared by a hot pressing method. The electret composites were treated by an electric discharge plasma process, formed by crystallization via electro-thermal treatment, and polarized. The surface charge density and the charge relaxation time of the electret composite were investigated using thermo-stimulated depolarization and their potential differences were defined via a contactless measurement method. According to the obtained experimental results, the stability of the electret charge of a composite based on F42 + PZT-5A is better than a composite based on F3 + PZT-8.
Journal: Journal of Electrostatics - Volume 76, August 2015, Pages 89–94