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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/4581

Title: Influence of electrospinning parameters on the structural morphology and diameter of electrospun nanofibers
Authors: Jacobs, V
Anandjiwala, RD
Maaza, M
Keywords: Polyelectrolyte
Polymer solution properties
Electrospinning
Nanofibers
Polymer science
Polymers
Issue Date: Nov-2009
Publisher: Wiley-Blackwell
Citation: Jacobs, V, Anandjiwala, RD and Maaza, M. 2010. Influence of electrospinning parameters on the structural morphology and diameter of electrospun nanofibers. Journal of Applied Polymer Science, Vol. 115(5), pp 3130-3136
Series/Report no.: Journal Article
Abstract: Electrospinning is a simple method of producing nanofibers by introducing electric field into the polymer solutions. We report an experimental investigation on the influence of processing parameters and solution properties on the structural morphology and average fiber diameter of electrospun poly ethylene oxide (PEO) polymer solution. Experimental trials have been conducted to investigate the effect of solution parameters, such as concentration, molecular weight, addition of polyelectrolyte in PEO solution, solvent effect, as well as governing parameter, such as applied voltage. The concentration of the aqueous PEO solution has shown noteworthy influence on the fiber diameter and structural morphology of electrospun nanofibers. At lower concentrations of PEO polymer solution, the fibers showed irregular morphology with large variations in fiber diameter, whereas at higher concentrations, the nanofibers with regular morphology and on average uniform fiber diameter were obtained. We find that the addition of polyelectrolytes, such as sodium salt of Poly acrylic acid (PAA) and Poly allylamine hydrochloride (PAH), increases the conductivity of PEO solutions and thereby decreases the bead formation in electrospun nanofibers. The increase in applied voltage has been found to affect the structural morphology of nanofiber while the addition of ethanol in PEO solution diminishes the bead defects.
Description: Copyright: 2010 Wiley-Blackwell. This is the author's version of the work. The definitive version is published in the Journal of Applied Polymer Science, Vol. 115(5), pp 3130-3136
URI: http://onlinelibrary.wiley.com/doi/10.1002/app.31396/pdf
http://hdl.handle.net/10204/4581
ISSN: 0021-8995
Appears in Collections:Polymers and composites
Nanotechnology
Fibres and textiles
Manufacturing science and technology
General science, engineering & technology

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