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Permanent link (DOI): https://doi.org/10.7939/R3599Z92H

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Design Guidance for Electrospun Nylon 6 Nanofiber Morphology through Design of Experiment and Statistical Analysis Method and Mechanical Properties Characterization Open Access

Descriptions

Other title
Subject/Keyword
Nylon 6
Electrospinning
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Pan, Feng
Supervisor and department
Ayranci, Cagri (Mechanical Engineering)
Mertiny, Pierre (Mechanical Engineering)
Examining committee member and department
Mertiny, Pierre (Mechanical Engineering)
Ayranci, Cagri (Mechanical Engineering)
Duke, Kajsa (Mechanical Engineering)
Ghaemi, Sina (Mechanical Engineering)
Department
Department of Mechanical Engineering
Specialization

Date accepted
2014-09-26T13:57:45Z
Graduation date
2014-11
Degree
Master of Science
Degree level
Master's
Abstract
Electrospinning is an efficient and versatile technique to fabricate polymer nanofibers. In this study, ultrafine Nylon 6 nanofibers were successfully fabricated by the electrospinning technique. The electrospinning voltage, solution concentration and flow rate are three parameters that have been reported to have effects on nanofiber morphology and will be further investigated in this study. The design of experiment and statistical analysis methods were successfully applied to investigate the effects of electrospinning parameters on nanofiber diameters and uniformity, and whether the effects are linear or nonlinear. In addition, interaction effects between the parameters were studied. The mechanical properties of fiber strips, i.e., elongation at break, elongation at maximum stress, tensile strength and elastic modulus, were analyzed. Moreover, the relationship between the mechanical properties and the Nylon 6 solution concentration was examined. The significant findings from this study are: (1) solution concentration, electrospinning voltage, flow rate all have significant effects on Nylon 6 fiber diameter and uniformity; (2) the solution concentration has the most significant effect on fiber diameter and the effect is nonlinear; (3) the average fiber diameter increases with increasing solution concentration and the decrease of both electrospinning voltage and flow rate; (4) the fiber diameter is most consistent when both electrospinning voltage and flow rate are chosen at the highest possible levels for a certain fixed solution concentration; and (5) tensile strength and elongation at break of fiber strips increase with increasing Nylon 6 solution concentration.
Language
English
DOI
doi:10.7939/R3599Z92H
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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