Toughened electrospun nanofibers from crosslinked elastomer-thermoplastic blends

A crosslink‐able elastomeric polyester urethane (PEU) was blended with a thermoplastic, polyacrylonitrile (PAN), and electrospun into nanofibers. The effects of the PEU/PAN ratio and the crosslinking reaction on the morphology and the tensile properties of the as‐spun fiber mats were investigated. W...

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Bibliographic Details
Published in:Journal of applied polymer science 2007-08, Vol.105 (4), p.2321-2326
Main Authors: Fang, Jian, Lin, Tong, Tian, Wendy, Sharma, Arnav, Wang, Xungai
Format: Article
Language:English
Subjects:
Applied sciences
effect of crosslinking
elastomeric polymer
electrospinning
electrospun nanofibres
Exact sciences and technology
Fibers and threads
Forms of application and semi-finished materials
polyacrylonitrile
polyester urethane
Polymer industry, paints, wood
Technology of polymers
tensile properties
thermoplastic
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Summary:A crosslink‐able elastomeric polyester urethane (PEU) was blended with a thermoplastic, polyacrylonitrile (PAN), and electrospun into nanofibers. The effects of the PEU/PAN ratio and the crosslinking reaction on the morphology and the tensile properties of the as‐spun fiber mats were investigated. With the same overall polymer concentration (9 wt %), the nanofiber containing higher composition of PEU shows a slight decrease in the average fiber diameter, but the tensile strength, the elongation at break and tensile modulus of the nanofiber mats are all improved. These tensile properties are further enhanced by slight crosslinking of the PEU component within the nanofibers. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007
ISSN:0021-8995
1097-4628
DOI:10.1002/app.26422