Journal article

Melt electrowriting of electroactive poly(vinylidene difluoride) fibers

Sammy Florczak, Thomas Lorson, Tian Zheng, Miroslav Mrlik, Dietmar W Hutmacher, Michael J Higgins, Robert Luxenhofer, Paul D Dalton

Polymer International | Wiley | Published : 2019

Abstract

Poly(vinylidene difluoride) (PVDF) has piezoelectric properties suitable for numerous applications such as flexible electronics, sensing and biomedical materials. In this study, individual fibers with diameters ranging from 17 to 55 µm were processed using melt electrowriting (MEW). Electroactive PVDF fibers can be fabricated via MEW, while the polymer can remain molten for up to 10 h without noticeable changes in the resulting fiber diameter. MEW processing parameters for PVDF were investigated, including applied voltage, pressure and temperature. A rapid fiber characterization methodology for MEW that automatically determines the fiber diameters from camera images taken of microscope slide..

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University of Melbourne Researchers

Grants

Awarded by EACEA program BIOFAB


Awarded by Volkswagen Stiftung


Awarded by German Research Foundation (DFG) State Major Instrumentation Programme


Awarded by Australian Research Council (ARC) Centre of Excellence for Electromaterials Science


Awarded by ARC Industrial Transformation Training Centre in Additive Biomanufacturing


Funding Acknowledgements

The assistance of Mr Andrei Hrynevich for SEM imaging is appreciated. The EACEA program BIOFAB (grant 2013/3137 001-001) supported SF, and the Volkswagen Stiftung (grant 93 417) is greatly appreciated for their financial assistance. The German Research Foundation (DFG) State Major Instrumentation Programme (INST 105022/58-1 FUGG) funded the Zeiss Crossbeam CB 340 SEM used in this study while Unibund (University of Wurzburg) supported the purchasing of materials. We acknowledge the Australian Research Council (ARC) Centre of Excellence for Electromaterials Science (CE 140100012) for financial support and the Australian National Fabrication Facility (ANFF) Materials Node and University of Wollongong for use of facilities. The support of the ARC Industrial Transformation Training Centre in Additive Biomanufacturing (IC160100026) is also acknowledged.