Mechanical and electrical response of charged polymers with cellular structure

Author

Hillenbrand, J. ; Sessler, G.M.

Author_Institution

Inst. of Telecommun. & Electroacoust., Darmstadt Univ. of Technol., Germany

fYear

1999

fDate

1999

Firstpage

43

Abstract

Charged films with a cellular structure show pseudo-piezoelectric properties with high transducer constants. Measurements of the direct and inverse transducer constants, the thermal stability of the charge, and Young´s modulus of such films are presented. The electromechanical response equations are derived for their operation as sensors and actuators. By assuming reasonable charge distributions and charge densities, the calculated transducer constants are in good agreement with the measured values. Both the measurements and the theoretical model show the reciprocity of the transducer operation

Keywords

Young´s modulus; insulating thin films; organic insulating materials; piezoelectric materials; polymers; thermal stability; Young´s modulus; cellular structure; charge densities; charge distributions; charged polymers; direct transducer constants; electrical response; electromechanical response equations; high transducer constants; inverse transducer constants; mechanical response; pseudo-piezoelectric properties; thermal stability; Actuators; Charge measurement; Corona; Current measurement; Equations; Mechanical factors; Piezoelectric films; Piezoelectric transducers; Polymer films; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 1999 Annual Report Conference on

Conference_Location

Austin, TX

Print_ISBN

0-7803-5414-1

Type

conf

DOI

10.1109/CEIDP.1999.804588

Filename

804588