Melt electrowriting of poly(vinylidene fluoride‐co‐trifluoroethylene)
Please always quote using this URN: urn:nbn:de:bvb:20-opus-257654
- 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 mmPoly(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.…
Author: | Juliane C. Kade, Biranche Tandon, Jan Weichhold, Dario Pisignano, Luana Persano, Robert Luxenhofer, Paul D. DaltonORCiD |
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URN: | urn:nbn:de:bvb:20-opus-257654 |
Document Type: | Journal article |
Faculties: | Fakultät für Chemie und Pharmazie / Institut für Pharmazie und Lebensmittelchemie |
Language: | English |
Parent Title (English): | Polymer International |
Year of Completion: | 2021 |
Volume: | 70 |
Issue: | 12 |
Pagenumber: | 1725–1732 |
Source: | Polymer International 2021, 70(12):1725–1732. DOI: 10.1002/pi.6272 |
DOI: | https://doi.org/10.1002/pi.6272 |
Dewey Decimal Classification: | 6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit |
Tag: | additive manufacturing; electroactive; electrohydrodynamic; polymer processing |
Release Date: | 2022/04/01 |
Licence (German): | CC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International |