https://doi.org/10.1140/epjs/s11734-025-01679-9
Regular Article
The impact of electric fields on rheology and fiber formation in ElectroHydroDynamics-based manufacturing
1
Departamento de Ciencias de la Energía y Mecánica, Universidad de las Fuerzas Armadas - ESPE, 171103, Sangolquí, Ecuador
2
Departamento de Ingeniería Química, Colegio de Ciencias e Ingenierías, Universidad San Francisco de Quito (USFQ), 170901, Quito, Ecuador
3
Bioengineering & Regenerative Medicine Research Group (Bio-ReM), Escuela de Ingeniería, Arquitectura y Diseño (EIAD), Universidad Alfonso X el Sabio (UAX), Avenida de la Universidad 1, 28691, Villanueva de la Cañada, Madrid, Spain
4
Departamento de Ingeniería Química, Colegio de Ciencias e Ingenierías, Institute for Energy and Materials, Universidad San Francisco de Quito (USFQ), 170901, Quito, Ecuador
Received:
26
September
2024
Accepted:
6
May
2025
Published online:
27
May
2025
This study investigates the impact of solution properties on the morphology of electrosprayed and electrospun polyvinylpyrrolidone (PVP) structures. PVP solutions with varying molecular weights (30 kDa, 90 kDa) and concentrations (10 wt%, 30 wt%) were prepared in dimethylformamide (DMF) and ethanol (EtOH). Despite the dominant viscous nature of PVP solutions, viscosity alone did not significantly influence final structure. Instead, solvent properties proved crucial in determining morphology. DMF’s high surface tension and boiling point inhibited fiber formation, leading to particle formation, while EtOH’s lower properties promoted fiber formation through rapid solidification. Polymer concentration also affected solvent evaporation rate and subsequent structure formation. Electrorheologycal measurements suggest polymer chain alignment within the electric field, yet overall solution behavior was dominated by viscous forces. These findings highlight the critical role of solvent properties in determining the final morphology of electrospun and electrosprayed structures.
Supplementary Information The online version contains supplementary material available at https://doi.org/10.1140/epjs/s11734-025-01679-9.
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Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
