Electret and piezoelectric properties in the laminated systems of PTFE and PUE polymer films

Author

Mazur, K.

Author_Institution

Dept. of Phys., Higher Coll. of Eng., Zielona Gora, Poland

fYear

1992

fDate

22-25 Jun 1992

Firstpage

280

Lastpage

284

Abstract

The author suggests the preparation of piezoelectric PTFE-PUE-PTFE (polytetrafluoroethylene and polyester-urethane elastomer) laminate without ferroelectric materials such as poly(vinylidene fluoride) (PVDF) and/or BaTiO₃. The laminate of a three-layered structure (a-b-a) has some advantages in applications because its mechanical and electrical properties can be designed by changing the thickness of the outer films. PFTE-PUE-PTFE systems without ferroelectric materials can have interesting electret and piezoelectric properties. After about 160 days the induction charge density and the piezoelectric strain constant attain maximum and stable values of 10 μsC/m² and 6 pC/N, respectively. The piezoelectricity of these systems may be due to heterogeneity and embedded charges at the interfaces between PTFE and PUE films

Keywords

electrets; piezoelectric materials; piezoelectric thin films; polymer films; PTFE; PUE; electret properties; electrical properties; embedded charges; induction charge density; laminated systems; piezoelectric properties; piezoelectric strain constant; polyester-urethane elastomer; three-layered structure; Electrets; Electrostatic measurements; Laminates; Metallization; Piezoelectric films; Piezoelectric polarization; Piezoelectricity; Polymer films; Space charge; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Conduction and Breakdown in Solid Dielectrics, 1992., Proceedings of the 4th International Conference on

Conference_Location

Sestri Levante

Print_ISBN

0-7803-0129-3

Type

conf

DOI

10.1109/ICSD.1992.224939

Filename

224939