Bending instability in electrospinning of nanofibers

Alexander Yarin, S. Koombhongse, D. H. Reneker

Research output: Contribution to journalArticle

695 Citations (Scopus)

Abstract

A localized approximation was developed to calculate the bending electric force acting on an electrified polymer jet, which is a key element of the electrospinning process for manufacturing of nanofibers. Using this force, a far reaching analogy between the electrically driven bending instability and the aerodynamically driven instability was established. Continuous, quasi-one-dimensional, partial differential equations were derived and used to predict the growth rate of small electrically driven bending perturbations of a liquid column. A discretized form of these equations, that accounts for solvent evaporation and polymer solidification, was used to calculate the jet paths during the course of nonlinear bending instability leading to formation of large loops and resulting in nanofibers. The results of the calculations are compared to the experimental data acquired in the present work. Agreement of theory and experiment is discussed.

Original languageEnglish
Pages (from-to)3018-3026
Number of pages9
JournalJournal of Applied Physics
Volume89
Issue number5
DOIs
Publication statusPublished - 2001 Mar 1
Externally publishedYes

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polymers
partial differential equations
solidification
manufacturing
evaporation
perturbation
liquids
approximation

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Yarin, A., Koombhongse, S., & Reneker, D. H. (2001). Bending instability in electrospinning of nanofibers. Journal of Applied Physics, 89(5), 3018-3026. https://doi.org/10.1063/1.1333035

Bending instability in electrospinning of nanofibers. / Yarin, Alexander; Koombhongse, S.; Reneker, D. H.

In: Journal of Applied Physics, Vol. 89, No. 5, 01.03.2001, p. 3018-3026.

Research output: Contribution to journalArticle

Yarin, A, Koombhongse, S & Reneker, DH 2001, 'Bending instability in electrospinning of nanofibers', Journal of Applied Physics, vol. 89, no. 5, pp. 3018-3026. https://doi.org/10.1063/1.1333035
Yarin, Alexander ; Koombhongse, S. ; Reneker, D. H. / Bending instability in electrospinning of nanofibers. In: Journal of Applied Physics. 2001 ; Vol. 89, No. 5. pp. 3018-3026.
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