Preparation and anisotropic mechanical behavior of highly-oriented electrospun poly(butylene terephthalate) fibers

This work describes the effect of the speed of drum‐type rotating collector in an electrospinning process on the orientation of electrospun poly(butylene terephthalate) fiber mats, and its effect on the tensile properties. The degree of orientation increased with the increase in the drum speed (surf...

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Bibliographic Details
Published in:Journal of applied polymer science 2006-08, Vol.101 (3), p.2017-2021
Main Authors: Mathew, G., Hong, J. P., Rhee, J. M., Leo, D. J., Nah, C.
Format: Article
Language:English
Subjects:
anisotropic mechanical behavior
Applied sciences
electrospun fibers
Exact sciences and technology
Fibers and threads
Forms of application and semi-finished materials
orientation effect
poly(butylene terephthalate)
Polymer industry, paints, wood
Technology of polymers
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Summary:This work describes the effect of the speed of drum‐type rotating collector in an electrospinning process on the orientation of electrospun poly(butylene terephthalate) fiber mats, and its effect on the tensile properties. The degree of orientation increased with the increase in the drum speed (surface velocity) up to a critical level, and thereafter, wavy fibers were observed. The average diameter reduced and its distribution became narrower with increase in the velocity. The mechanical properties in a parallel direction improved about three times with increase in the surface velocity. The anisotropic mechanical behavior could be predicted with a simple classical equation. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 2017–2021, 2006
ISSN:0021-8995
1097-4628
DOI:10.1002/app.23762