Beyond the traditional polarization response in electrets: Some amazing properties of the ferrorelaxor polymers

Author

Zhang, Q.M. ; Lu, D.S.G. ; Li, Xin ; Neese, B. ; Qian, Xiangchen ; KutnJa, Z. ; Rozic, B. ; Pirc, R.

Author_Institution

Electr. Eng. Dept., Pennsylvania State Univ., University Park, PA, USA

fYear

2011

fDate

28-31 Aug. 2011

Firstpage

59

Lastpage

60

Abstract

This study developed a high energy electron irradiation approach, creating random defects fields, interrupting long range polar-ordering, and converting the polymer into a ferrorelaxor which exhibits a slim polarization hysteresis loop at room temperature and relaxor dielectric responses. More interestingly, the ferrorelxor exhibits a very large room temperature electrostriction. Besides the high energy e-beam irradiation to convert the normal ferroelectric P(VDF-TrFE) into a ferrorelaxor, using the radical polymerization method to copolymerize VDF-TrFE with a third bulker monomer such as CFE or CTFE can also lead to the conversion to the relaxor.

Keywords

dielectric polarisation; electrets; electron beam effects; electrostriction; free radical reactions; polymerisation; polymers; relaxor ferroelectrics; defects fields; electrets; electrostriction; ferroelectric materials; ferrorelaxor polymers; high energy electron irradiation; long range polar-ordering; radical polymerization; relaxor dielectric responses; slim polarization hysteresis loop; temperature 293 K to 298 K; traditional polarization response; ISO standards; Plastics;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrets (ISE), 2011 14th International Symposium on

Conference_Location

Montpellier

ISSN

2153-3253

Print_ISBN

978-1-4577-1023-0

Type

conf

DOI

10.1109/ISE.2011.6084981

Filename

6084981