Branching in electrospinning of nanofibers

A. L. Yarin, W. Kataphinan, D. H. Reneker

Research output: Contribution to journalArticlepeer-review

126 Citations (Scopus)

Abstract

Electrospinning of polymer nanofibers often begins with a single, straight, elongating, and electrified fluid jet that emanates from a droplet tip when the electric field at the surface is high enough. After some distance an electrically driven bending instability of the elongating jet occurs. For a polymer solution suitable for electrospinning, capillary instability does not cause the jet to become a spray of droplets. Under some conditions, a sequence of secondary jet branches emanates from the primary jet. This paper describes an experiment in which many closely spaced branches along the jet were observed during the electrospinning of a polycaprolactone solution. A theoretical description of the branching phenomenon is proposed.

Original languageEnglish
Article number064501
JournalJournal of Applied Physics
Volume98
Issue number6
DOIs
Publication statusPublished - 2005 Sep 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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