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Otto, Paul F.
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article
Melt electrowriting of poly(vinylidene difluoride) using a heated collector
Abstract
<jats:title>Abstract</jats:title><jats:p>Previous research on the melt electrowriting (MEW) of poly(vinylidene difluoride) (PVDF) resulted in electroactive fibers, however, printing more than five layers is challenging. Here, we investigate the influence of a heated collector to adjust the solidification rate of the PVDF jet so that it adheres sufficiently to each layer. A collector temperature of 110°C is required to improve fiber processing, resulting in a total of 20 fiber layers. For higher temperatures and higher layers, an interesting phenomenon occurred, where the intersection points of the fibers coalesced into periodic spheres of diameter 206 ± 52 μm (26G, 150°C collector temperature, 2000 mm/min, 10 layers in <jats:italic>x</jats:italic>‐ and <jats:italic>y</jats:italic>‐direction).The heated collector is an important component of a MEW printer that allows polymers with a high melting point to be processable with increased layers.</jats:p>