Volume 124, Issue 6 pp. 5002-5009

Mechanical properties and morphology of hot drawn polyacrylonitrile nanofibrous yarn

S. A. Hosseini Ravandi

Corresponding Author

S. A. Hosseini Ravandi

Department of Textile Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran

Nanotechnology & Advanced Materials Institute, Isfahan University of Technology, Isfahan 84156 83111, Iran

Department of Textile Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran===Search for more papers by this author
E. Hassanabadi

E. Hassanabadi

Department of Textile Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran

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H. Tavanai

H. Tavanai

Department of Textile Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran

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R. A. Abuzade

R. A. Abuzade

Department of Textile Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran

Nanotechnology & Advanced Materials Institute, Isfahan University of Technology, Isfahan 84156 83111, Iran

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First published: 11 December 2011
Citations: 20

Abstract

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

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