Premium
Mechanical properties and morphology of hot drawn polyacrylonitrile nanofibrous yarn
Author(s) -
Hosseini Ravandi S. A.,
Hassanabadi E.,
Tavanai H.,
Abuzade R. A.
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.35602
Subject(s) - ultimate tensile strength , materials science , composite material , yarn , polyacrylonitrile , crystallinity , scanning electron microscope , electrospinning , morphology (biology) , tensile testing , modulus , polymer , genetics , biology
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