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Mechanical Properties of a Single Electrospun Fiber and Its Structures

✍ Scribed by Shu-Ying Gu; Qi-Lin Wu; Jie Ren; G. Julius Vancso

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
214 KB
Volume
26
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

Summary: A method to measure the Young's modulus of a single electrospun polyacrylonitrile (PAN) fiber is reported. The Young's modulus can be calculated from the force‐displacement curves obtained by the bending of a single fiber attached to an atomic force microscopy (AFM) cantilever. It is suggested that the high modulus of electrospun fibers is caused by the orientation of molecular chains, which is confirmed by wide‐angle X‐ray diffraction (WAXD) measurements. The communication will provide a basic understanding of the relationship between mechanical properties and structures of electrospun fibers.

A PAN fiber was attached to a contact mode cantilever to facilitate the measurement of force‐displacement curves and Young's modulus.

imageA PAN fiber was attached to a contact mode cantilever to facilitate the measurement of force‐displacement curves and Young's modulus.

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