TY  - JOUR
A1  - Kade, Juliane C.
A1  - Tandon, Biranche
A1  - Weichhold, Jan
A1  - Pisignano, Dario
A1  - Persano, Luana
A1  - Luxenhofer, Robert
A1  - Dalton, Paul D.
T1  - Melt electrowriting of poly(vinylidene fluoride‐co‐trifluoroethylene)
T2  - Polymer International
N2  - Poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-co-TrFE)) is an electroactive polymer with growing interest for applications in biomedical materials and flexible electronics. In this study, a solvent-free additive manufacturing technique called melt electrowriting (MEW) has been utilized to fabricate well-defined microperiodic structures of the copolymer (P(VDF-co-TrFE)). MEW of the highly viscous polymer melt was initiated using a heated collector at temperatures above 120 °C and required remarkably slow collector speeds below 100 mm min\(^{-1}\). The fiber surface morphology was affected by the collector speed and an increase in β-phase was observed for scaffolds compared to the unprocessed powder. Videography shows vibrations of the P(VDF-co-TrFE) jet previously unseen during MEW, probably due to repeated charge buildup and discharge. Furthermore, piezo-force microscopy measurements demonstrated the electromechanical response of MEW-fabricated fibers. This research therefore achieves the melt electrohydrodynamic processing of fibers with micrometer resolution into defined structures with an important electroactive polymer.
KW  - polymer processing
KW  - additive manufacturing
KW  - electrohydrodynamic
KW  - electroactive
Y1  - 2021
UR  - https://opus.bibliothek.uni-wuerzburg.de/frontdoor/index/index/docId/25765
UR  - https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-257654
VL  - 70
IS  - 12
ER  -