Influence of charging parameters on piezoelectricity for cellular polypropylene film electrets

Author

Zhang, Pengfeng ; Xia, Zhongfu ; Qiu, Xunlin ; Wang, Feipeng ; Wu, XianYong

Author_Institution

Pohl Inst. of Solid State Phys., Tongji Univ., Shanghai, China

fYear

2005

fDate

11-14 Sept. 2005

Firstpage

39

Lastpage

42

Abstract

The influences of charging parameters (such as charging voltage, charging time and charging temperature, etc.) on piezoelectricity and its thermal stability of cellular polypropylene film electrets were studied by means of contact charging, constant voltage corona charging methods and the thermal stimulated discharge technique. The reasons about the influence were discussed with the material structure and theoretic model of cellular piezoelectric film electrets. The results show that the piezoelectricity and its thermal stability of the polymer cellular film electrets would be improved by optimizing the charging parameters reasonably. The work will be helpful to broaden the application for cellular PP and offer theoretic and technical base for their industrialization.

Keywords

corona; electrets; piezoelectric thin films; piezoelectricity; polymer films; thermal stability; thermally stimulated currents; cellular polypropylene film electrets; charging parameters; charging temperature; charging time; charging voltage; constant voltage corona charging methods; contact charging; material structure; piezoelectricity; polymer cellular film electrets; thermal stability; thermal stimulated discharge technique; Biological materials; Corona; Electrets; Piezoelectric films; Piezoelectric materials; Piezoelectricity; Polymer films; Temperature; Thermal stability; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrets, 2005. ISE-12. 2005 12th International Symposium on

Print_ISBN

0-7803-9116-0

Type

conf

DOI

10.1109/ISE.2005.1612313

Filename

1612313