Zhukov, Sergey ; Ma, Xingchen ; Seggern, Heinz von ; Sessler, Gerhard M. ; Dali, Omar Ben ; Kupnik, Mario ; Zhang, Xiaoqing (2020)
Biodegradable cellular polylactic acid ferroelectrets with strong longitudinal and transverse piezoelectricity.
In: Applied Physics Letters, 117 (11)
doi: 10.1063/5.0023153
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
Polymers with electrically charged internal air cavities (ferroelectrets) reveal a pronounced piezoelectric response and are regarded as soft electroactive multi-functional materials. This work presents preliminary results on the preparation and piezoelectric effect of ferroelectrets based on the polylactic acid (PLA) polymer. A distinctive feature of the manufactured films is that they are biodegradable. After a microstructure modification of carbon dioxide (CO2) foamed PLA sheets by hot-pressing treatment and corona polarization, these cellular films reveal large piezoelectric d₃₃ and d₃₁ responses in both quasi-static and dynamic modes. For freshly charged films, the maximum quasi-static piezoelectric coefficients are about 600 pC/N (d₃₃) and 44 pC/N (d₃₁) for a relatively thick film of 360 μm and a nominal porosity of about 60%. During the first 20 days after polarization, the piezoelectric activity decreases by half compared to the primary value, but then remains almost unchanged for a long time. Due to an already established inherent biocompatibility of PLA polymers, these eco-friendly ferroelectrets can be potentially used in various biological applications such as biosensors and microenergy harvesters embedded in tissue and artificial muscles.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2020 |
| Autor(en): | Zhukov, Sergey ; Ma, Xingchen ; Seggern, Heinz von ; Sessler, Gerhard M. ; Dali, Omar Ben ; Kupnik, Mario ; Zhang, Xiaoqing |
| Art des Eintrags: | Bibliographie |
| Titel: | Biodegradable cellular polylactic acid ferroelectrets with strong longitudinal and transverse piezoelectricity |
| Sprache: | Englisch |
| Publikationsjahr: | 17 September 2020 |
| Ort: | Melville, NY |
| Verlag: | AIP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Applied Physics Letters |
| Jahrgang/Volume einer Zeitschrift: | 117 |
| (Heft-)Nummer: | 11 |
| Kollation: | 6 Seiten |
| DOI: | 10.1063/5.0023153 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | Polymers with electrically charged internal air cavities (ferroelectrets) reveal a pronounced piezoelectric response and are regarded as soft electroactive multi-functional materials. This work presents preliminary results on the preparation and piezoelectric effect of ferroelectrets based on the polylactic acid (PLA) polymer. A distinctive feature of the manufactured films is that they are biodegradable. After a microstructure modification of carbon dioxide (CO2) foamed PLA sheets by hot-pressing treatment and corona polarization, these cellular films reveal large piezoelectric d₃₃ and d₃₁ responses in both quasi-static and dynamic modes. For freshly charged films, the maximum quasi-static piezoelectric coefficients are about 600 pC/N (d₃₃) and 44 pC/N (d₃₁) for a relatively thick film of 360 μm and a nominal porosity of about 60%. During the first 20 days after polarization, the piezoelectric activity decreases by half compared to the primary value, but then remains almost unchanged for a long time. Due to an already established inherent biocompatibility of PLA polymers, these eco-friendly ferroelectrets can be potentially used in various biological applications such as biosensors and microenergy harvesters embedded in tissue and artificial muscles. |
| Freie Schlagworte: | Piezoelectricity, Polymers, Porous media, Biomaterials, Thin films, Biosensors |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 621.3 Elektrotechnik, Elektronik |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Mess- und Sensortechnik |
| Hinterlegungsdatum: | 16 Sep 2024 05:36 |
| Letzte Änderung: | 16 Sep 2024 05:36 |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Biodegradable cellular polylactic acid ferroelectrets with strong longitudinal and transverse piezoelectricity. (deposited 13 Sep 2024 13:44)
- Biodegradable cellular polylactic acid ferroelectrets with strong longitudinal and transverse piezoelectricity. (deposited 16 Sep 2024 05:36) [Gegenwärtig angezeigt]
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