Simplified modeling of the electrospinning process from the stable jet region to the unstable region for predicting the final nanofiber diameter

Nagham Ismail, Fouad Junior Maksoud, Nesreen Ghaddar*, Kamel Ghali, Ali Tehrani-Bagha

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

20 Citations (Scopus)

Abstract

Electrospinning allows the production of ultrafine nanofibers through the stretching of a charged polymer jet with an external electrostatic field. In this study, we derived a simplified and accurate model relating the processing parameters, including the solution volumetric flow rate (Q), the applied electric field (E), and the polymer concentration, to the final fiber diameter. The model takes into consideration the jet behavior starting at the stable region and moving to the bending instability region. We validated the model experimentally by performing the electrospinning process with a polyacrylonitrile/N,N-dimethylformamide solution with different ranges of concentrations (8–11 wt %), Qs (900–1320 μL/h), and Es (88,889–113,889 V/m). The final fiber diameter was measured with scanning electron microscopy. The model predicted the fiber diameter with a relative error of less than 10%. Moreover, a 30% increase in Q resulted in a 15% increase in the fiber diameter, whereas a 30% increase in E resulted in a 14% decrease in the fiber diameter.

Original languageEnglish
Article number44112
JournalJournal of Applied Polymer Science
Volume133
Issue number43
DOIs
Publication statusPublished - 15 Nov 2016
MoE publication typeA1 Journal article-refereed

Keywords

  • conducting polymers
  • electrospinning
  • fibers

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