Altstädt, V. ; Behrendt, N. ; Freese, T. ; Schmidt, H.-W. ; Giesa, R. ; Hillenbrand, J. ; Sessler, Gerhard M. (2005)
Development of cellular films for electret applications.
12th International Symposium on Electrets (ISE 12). Salvador, Brazil (11.09.2005-14.09.2005)
doi: 10.1109/ISE.2005.1612317
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
Cellular polymer films are suitable for electret and piezoelectric applications. Considerable attention is currently focused on thermoplastic polymer foams such as isotactic polypropylene (i-PP). The cellular morphology leads to barrier effects effectively improving the charge storage stability. However, the application of neat cellular polypropylene electrets is limited due to their relatively low working temperature. Therefore, new research activities are mainly focused on processing of cellular high temperature polymers such as polyetherimide (PEI). A promising approach is a physical batch foaming process using carbon dioxide as a blowing agent, which allows the manufacturing of thin cellular films. The control of the cellular morphology plays an important role with respect to the charge storage behavior and is influenced by the processing parameters such as blowing agent concentration or foaming temperature. Investigations of the cellular morphologies are achieved by scanning electron microscopy (SEM). Electret properties are characterised by potential decay measurements at 90/spl deg/C after corona charging to surface potentials of about 400 V. In general, such cellular films show improved charge storage behavior in comparison to the compact materials.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2005 |
| Autor(en): | Altstädt, V. ; Behrendt, N. ; Freese, T. ; Schmidt, H.-W. ; Giesa, R. ; Hillenbrand, J. ; Sessler, Gerhard M. |
| Art des Eintrags: | Bibliographie |
| Titel: | Development of cellular films for electret applications |
| 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.2005.1612317 |
| Kurzbeschreibung (Abstract): | Cellular polymer films are suitable for electret and piezoelectric applications. Considerable attention is currently focused on thermoplastic polymer foams such as isotactic polypropylene (i-PP). The cellular morphology leads to barrier effects effectively improving the charge storage stability. However, the application of neat cellular polypropylene electrets is limited due to their relatively low working temperature. Therefore, new research activities are mainly focused on processing of cellular high temperature polymers such as polyetherimide (PEI). A promising approach is a physical batch foaming process using carbon dioxide as a blowing agent, which allows the manufacturing of thin cellular films. The control of the cellular morphology plays an important role with respect to the charge storage behavior and is influenced by the processing parameters such as blowing agent concentration or foaming temperature. Investigations of the cellular morphologies are achieved by scanning electron microscopy (SEM). Electret properties are characterised by potential decay measurements at 90/spl deg/C after corona charging to surface potentials of about 400 V. In general, such cellular films show improved charge storage behavior in comparison to the compact materials. |
| Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik |
| Hinterlegungsdatum: | 20 Nov 2008 08:25 |
| Letzte Änderung: | 22 Nov 2024 08:03 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum