Model droplet formation in extensional filament stretching within a Filament Extension Atomizer

M. Neukötter, S. Jesinghausen, H.-J. Schmid, Rheologica Acta (2022).

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Journal Article | Published | English
Abstract
<jats:title>Abstract</jats:title><jats:p>Further innovation in the field of selective laser sintering (SLS) is strongly connected to the availability of new materials since the market is dominated by polyamide 12 (&gt;90%). The aim of this publication is to develop a descriptive model for the droplet formation process in a Filament Extension Atomizer to predict the applicability to exploit further polymers for the SLS process. The feasibility was tested, investigated and characterized using a “Dripping out of a nozzle” setup for uniaxial extension. The droplet formation process was then observed via high-speed camera imaging and classified for certain parameters. The experiments were carried out using semi-diluted polyethylene oxide (600–4000 kg/mol), glycerol and water solutions as model fluids. Driven by the Plateau-Rayleigh instability, different types of spherical droplets were observed and various droplet formation mechanisms demonstrated and analyzed. Based on the experimental results, a predictive model is derived to describe various essential parameters.</jats:p>
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Rheologica Acta
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Neukötter M, Jesinghausen S, Schmid H-J. Model droplet formation in extensional filament stretching within a Filament Extension Atomizer. Rheologica Acta. Published online 2022. doi:10.1007/s00397-022-01339-y
Neukötter, M., Jesinghausen, S., & Schmid, H.-J. (2022). Model droplet formation in extensional filament stretching within a Filament Extension Atomizer. Rheologica Acta. https://doi.org/10.1007/s00397-022-01339-y
@article{Neukötter_Jesinghausen_Schmid_2022, title={Model droplet formation in extensional filament stretching within a Filament Extension Atomizer}, DOI={10.1007/s00397-022-01339-y}, journal={Rheologica Acta}, publisher={Springer Science and Business Media LLC}, author={Neukötter, Moritz and Jesinghausen, Steffen and Schmid, Hans-Joachim}, year={2022} }
Neukötter, Moritz, Steffen Jesinghausen, and Hans-Joachim Schmid. “Model Droplet Formation in Extensional Filament Stretching within a Filament Extension Atomizer.” Rheologica Acta, 2022. https://doi.org/10.1007/s00397-022-01339-y.
M. Neukötter, S. Jesinghausen, and H.-J. Schmid, “Model droplet formation in extensional filament stretching within a Filament Extension Atomizer,” Rheologica Acta, 2022, doi: 10.1007/s00397-022-01339-y.
Neukötter, Moritz, et al. “Model Droplet Formation in Extensional Filament Stretching within a Filament Extension Atomizer.” Rheologica Acta, Springer Science and Business Media LLC, 2022, doi:10.1007/s00397-022-01339-y.

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