Zhang, X. ; Sessler, Gerhard M. (2005)
Optimization of piezoelectric properties of cellular polypropylene films by repeated expansion.
12th International Symposium on Electrets (ISE 12). Salvador, Brazil (11.09.2005-14.09.2005)
doi: 10.1109/ISE.2005.1612316
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
The piezoelectric d/sub 33/-coefficients of customary cellular polypropylene (PP) films can be significantly improved by a double-expansion process. In the present paper, the experimental procedure is described and experimental results of d/sub 33/-coefficients that can be achieved by choosing expansion pressures of 2 MPa and a range of expansion temperatures up to 120/spl deg/C for the two expansion processes are discussed. For example, a temperature of 90 to 100/spl deg/C for the first expansion and 60/spl deg/C for the second expansion, and exposure times of the order of 1 h result in stable quasistatic d/sub 33/-coefficients of more than 1000 pC/N.
Typ des Eintrags: | Konferenzveröffentlichung |
---|---|
Erschienen: | 2005 |
Autor(en): | Zhang, X. ; Sessler, Gerhard M. |
Art des Eintrags: | Bibliographie |
Titel: | Optimization of piezoelectric properties of cellular polypropylene films by repeated expansion |
Sprache: | Englisch |
Publikationsjahr: | 2005 |
Ort: | Piscataway, NJ |
Verlag: | IEEE Operations Center |
Buchtitel: | ISE12. 12th International Symposium on Electrets : proceedings |
Veranstaltungstitel: | 12th International Symposium on Electrets (ISE 12) |
Veranstaltungsort: | Salvador, Brazil |
Veranstaltungsdatum: | 11.09.2005-14.09.2005 |
DOI: | 10.1109/ISE.2005.1612316 |
Kurzbeschreibung (Abstract): | The piezoelectric d/sub 33/-coefficients of customary cellular polypropylene (PP) films can be significantly improved by a double-expansion process. In the present paper, the experimental procedure is described and experimental results of d/sub 33/-coefficients that can be achieved by choosing expansion pressures of 2 MPa and a range of expansion temperatures up to 120/spl deg/C for the two expansion processes are discussed. For example, a temperature of 90 to 100/spl deg/C for the first expansion and 60/spl deg/C for the second expansion, and exposure times of the order of 1 h result in stable quasistatic d/sub 33/-coefficients of more than 1000 pC/N. |
Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik |
Hinterlegungsdatum: | 20 Nov 2008 08:25 |
Letzte Änderung: | 22 Nov 2024 08:05 |
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