Production of core/shell fibers by electrospinning from a free surface
Name
CoaxialFreeSurfaceElectrospinningvChemEngSciv2.pdf
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1.39 MB
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Adobe PDF
Checksum (MD5)
8c548a0abe790dbc4f010bbf7f0f24c8
Author(s)
Forward, Keith M.
Flores, Alexander
Rutledge, Gregory C.
Date Issued
September 2013
Journal
Chemical Engineering Science
Publisher
Elsevier
Citation
Forward, Keith M., Alexander Flores, and Gregory C. Rutledge. “Production of Core/shell Fibers by Electrospinning from a Free Surface.” Chemical Engineering Science 104 (December 2013): 250–259.
Version
Author's final manuscript
Abstract
Electrostatic fiber formation (“electrospinning”) is the leading technology for production of continuous fibers with submicron diameter. Applications such as drug delivery and sensors benefit from the ability to produce submicron fibers with a core/shell morphology from electrified coaxial jets of two liquids. However, low productivity of the conventional needle-based coaxial process is a barrier for commercialization. We present a novel technology that overcomes this limitation by the development of coaxial jets directly from compound droplets of immiscible liquids entrained on wires, and control of mass transfer processes to produce uniform, core/shell fibers. The enabling feature of controlled evaporation by design of solution properties is verified by a simple mass transport model. Electron micrographs confirm the formation of fibers with the desired morphology. The proposed technology creates the opportunity to produce nanofibers with core/shell morphology on an industrial scale for a wide variety of applications.
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/j.ces.2013.09.002
