Mechanical properties and morphology of hot drawn polyacrylonitrile nanofibrous yarn

In this study PAN nanofibrous yarn was produced by two‐nozzle conjugated electrospinning method. The nanofibrous yarns were drawn continuously in boiling water with drawing ratios of 1, 2, 3, and 4. The morphology of drawn yarns was investigated by scanning electron microscopy and tested for tensile...

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Bibliographic Details
Published in:Journal of applied polymer science 2012-06, Vol.124 (6), p.5002-5009
Main Authors: Hosseini Ravandi, S. A., Hassanabadi, E., Tavanai, H., Abuzade, R. A.
Format: Article
Language:English
Subjects:
Applied sciences
Boiling
Draw ratio
Electrospinning
Exact sciences and technology
Fibers and threads
Forms of application and semi-finished materials
Materials science
mechanical properties
Morphology
nanofiber
Nanostructure
Polymer industry, paints, wood
Polymers
Technology of polymers
Tensile properties
Yarns
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Summary:In this study PAN nanofibrous yarn was produced by two‐nozzle conjugated electrospinning method. The nanofibrous yarns were drawn continuously in boiling water with drawing ratios of 1, 2, 3, and 4. The morphology of drawn yarns was investigated by scanning electron microscopy and tested for tensile properties as well as untreated yarn. The results showed that the nanofiber alignment in the yarn axis direction, the tensile strength, and tensile modulus of yarn increases as a result of drawing while the tensile strain and work of rapture decrease. X‐ray diffraction patterns of the produced yarns were analyzed as well. It was found that crystallinity index increases as the draw ratio increases. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011
ISSN:0021-8995
1097-4628
DOI:10.1002/app.35602