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Shape-Memory PVDF Exhibiting Switchable Piezoelectricity

Hoeher, Robin ; Raidt, Thomas ; Novak, Nikola ; Katzenberg, Frank ; Tiller, Joerg C. (2015)
Shape-Memory PVDF Exhibiting Switchable Piezoelectricity.
In: Macromolecular Rapid Communications, 36 (23)
doi: 10.1002/marc.201500410
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

In this study, a material is designed which combines the properties of shape-memory and electroactive polymers. This is achieved by covalent cross-linking of polyvinylidene fl uoride. The resulting polymer network exhibits excellent shape-memory properties with a storable strain of 200%, and fi xity as well as recovery values of 100%. Programming upon rolling induces the transformation from the nonelectroactive α-phase to the piezoelectric β-phase. The highest β-phase content is found to be 83% for a programming strain of 200% affording a d 33 value of −30 pm V −1 . This is in good accordance with literature known values for piezoelectric properties. Thermal triggering this material does not only result in a shape change but also renders the material nonelectroactive.

Typ des Eintrags: Artikel
Erschienen: 2015
Autor(en): Hoeher, Robin ; Raidt, Thomas ; Novak, Nikola ; Katzenberg, Frank ; Tiller, Joerg C.
Art des Eintrags: Bibliographie
Titel: Shape-Memory PVDF Exhibiting Switchable Piezoelectricity
Sprache: Englisch
Publikationsjahr: 19 Oktober 2015
Verlag: WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Macromolecular Rapid Communications
Jahrgang/Volume einer Zeitschrift: 36
(Heft-)Nummer: 23
DOI: 10.1002/marc.201500410
Kurzbeschreibung (Abstract):

In this study, a material is designed which combines the properties of shape-memory and electroactive polymers. This is achieved by covalent cross-linking of polyvinylidene fl uoride. The resulting polymer network exhibits excellent shape-memory properties with a storable strain of 200%, and fi xity as well as recovery values of 100%. Programming upon rolling induces the transformation from the nonelectroactive α-phase to the piezoelectric β-phase. The highest β-phase content is found to be 83% for a programming strain of 200% affording a d 33 value of −30 pm V −1 . This is in good accordance with literature known values for piezoelectric properties. Thermal triggering this material does not only result in a shape change but also renders the material nonelectroactive.

Freie Schlagworte: electroactive polymer ; piezoelectricity ; polyvinylidene fluoride ; shape-memory polymer ; switchable
Fachbereich(e)/-gebiet(e): 11 Fachbereich Material- und Geowissenschaften
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe
Hinterlegungsdatum: 20 Okt 2015 07:48
Letzte Änderung: 16 Okt 2020 07:15
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