Abstract
High performance polyvinylidene fluoride films were successfully obtained by solid-state coextrusion of dry gel films to an extrusion draw ratio of 9. They exhibit square D-E hysteresis loops with remanent polarization 100mC/m2. The electromechanical coupling coefficient determined by thickness extensional mode piezoelectric resonance reaches 0.27. These values are 60% greater than those obtained for conventional uniaxially-drawn PVDF films. The electromechanical data taken over a broad temperature range are presented and the factors that achieve high performance are discussed.
| Original language | English |
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| Pages | 371-374 |
| Number of pages | 4 |
| Publication status | Published - 1 Dec 2002 |
| Event | 11th International Symposium on Electrets - Melbourne, VIC., Australia Duration: 1 Oct 2002 → 3 Oct 2002 |
Conference
| Conference | 11th International Symposium on Electrets |
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| Country/Territory | Australia |
| City | Melbourne, VIC. |
| Period | 1/10/02 → 3/10/02 |