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Polymeric piezoelectric fiber with metal core produced by electrowetting‐aided dry spinning method
Author(s) -
Liu Weiting,
Chen Ran,
Ruan Xiaodong,
Fu Xin
Publication year - 2016
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.43968
Subject(s) - materials science , electrowetting , piezoelectricity , composite material , polyester , scanning electron microscope , spinning , fiber , core (optical fiber) , layer (electronics) , optoelectronics , dielectric
An electrowetting‐aided dry spinning method is developed to produce morphologically stable polymeric piezoelectric fibers with a metal core covered by a beta‐phase poly(vinylidene fluoride) [or poly(vinylidene‐trifluoroethylene)] layer. Each fiber consists of a 100 μm copper core (enameled with 6 μm polyester‐imide), a 3–10 μm piezoelectric layer, and a sputtered 100 nm gold electrode. The morphological properties of the fibers are analyzed with scanning electron microscopy, X‐ray diffraction, and a step profiler. The piezoelectric properties are tested in a vibration‐detecting application. Both morphological observation and piezoelectric testing demonstrate that the electrowetting‐aided dry spinning helps in forming high‐quality polymeric piezoelectric fibers. Moreover, this method can also be applied in different fabrications, where adhesion between a liquid and solid surface needs to be enhanced. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43968.