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Mechanical Properties of a Single Electrospun Fiber and Its Structures
Author(s) -
Gu ShuYing,
Wu QiLin,
Ren Jie,
Vancso G. Julius
Publication year - 2005
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200400667
Subject(s) - materials science , cantilever , modulus , fiber , composite material , young's modulus , polyacrylonitrile , displacement (psychology) , bending , elastic modulus , polymer , psychology , psychotherapist
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.