Tailoring the Diameters of Electro-Mechanically Spun Fibers by Controlling Their Deborah Numbers

Polymer solutions with different concentrations of SU-8 2002/poly(ethylene) glycol/tetrabutyl ammonium tetrafluoroborate (SU-8/PEO/TBATFB) were electrospun in a low-voltage near-field electrospinning platform (LVNFES) at different velocities. Their diameters were related to the concentration content...

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Bibliographic Details
Published in:Polymers 2020-06, Vol.12 (6), p.1358
Main Authors: Flores-Hernandez, Domingo R., Cardenas-Benitez, Braulio, Martinez-Chapa, Sergio O., Bonilla-Rios, Jaime
Format: Article
Language:English
Subjects:
Carbon
Deborah number
Fibers
Microelectromechanical systems
Morphology
Polymers
Rheology
Sensors
Viscoelasticity
Viscosity
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Summary:Polymer solutions with different concentrations of SU-8 2002/poly(ethylene) glycol/tetrabutyl ammonium tetrafluoroborate (SU-8/PEO/TBATFB) were electrospun in a low-voltage near-field electrospinning platform (LVNFES) at different velocities. Their diameters were related to the concentration contents as well as to their Deborah (De) numbers, which describes the elasticity of the polymer solution under determined operating conditions. We found a direct correlation between the concentration of PEO/TBATFB, the De and the diameter of the fibers. Fibers with diameters as thin as 465 nm can be achieved for De ≈ 1.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym12061358