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Crystal polymorphism and enhanced dielectric performance of composite nanofibers of poly(vinylidene fluoride) with silver nanoparticles
Author(s) -
Shi Naien,
Duan Juanjuan,
Su Jie,
Huang Fengzhen,
Xue Wei,
Zheng Chao,
Qian Yan,
Chen Shufen,
Xie Linghai,
Huang Wei
Publication year - 2012
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.38185
Subject(s) - materials science , nanofiber , differential scanning calorimetry , electrospinning , composite number , dielectric , fourier transform infrared spectroscopy , silver nanoparticle , nanoparticle , melting point , chemical engineering , composite material , crystallization , polymer chemistry , polymer , nanotechnology , physics , optoelectronics , engineering , thermodynamics
Composite nanofibers of poly(vinylidene fluoride) (PVF 2 ) with silver nanoparticles are fabricated by electrospinning. According to the X‐ray diffraction patterns and Fourier transform IR (FTIR) spectra, the content of piezoelectric β‐polymorph of PVF 2 is enhanced in the composite fibers of PVF 2 and silver as compared with the pristine PVF 2 raw materials and electrospun nanofibers. The differential scanning calorimeter (DSC) measurement indicates that the composite of PVF 2 and silver has higher melting point and crystallization temperature than that of pristine PVF 2 nanofibers. Moreover, the existence of silver nanoparticles greatly enhances the dielectric constant of PVF 2 nanofibers and keeps a low dielectric loss simultaneously, which mainly relates to the internal fibrous structure of the composite. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2013