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Electromechanical properties of poly(vinylidene-fluoride-chlorotrifluoroethylene) copolymer.
- Source :
- Applied Physics Letters; 2/6/2006, Vol. 88 Issue 6, p062904, 3p, 1 Chart, 5 Graphs
- Publication Year :
- 2006
-
Abstract
- The electromechanical response of poly(vinylidene-fluoride-chlorotrifluoroethylene) [P(VDF-CTFE)] copolymers with 9 mol % (CT9) and 12 mol % CTFE (CT12) is reported. The CT12 (at room temperature) exhibits an electrostrictive strain response of more than 5% and a piezoelectric constant d<subscript>33</subscript> of 140 pC/N at a dc bias of 70 MV/m. It is found that about 70% of crystalline regions in P(VDF-CTFE) is at the nonpolar phase and that the CT9 has a crystallinity about 25% higher than the CT12. The difference in electromechanical performance between the CT9 and CT12 cannot be completely explained using the structure/conformation change alone. It is believed that the contribution of the interfacial layers to the polarization and electrostrictive strain response plays an important role. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 88
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 19933780
- Full Text :
- https://doi.org/10.1063/1.2170425