Crystal polymorphism and enhanced dielectric performance of composite nanofibers of poly(vinylidene fluoride) with silver nanoparticles

Journal of Applied Polymer Science, Volume 128, Issue 2, pages 1004–1010,  2013.

Naien Shi,Juanjuan Duan, Jie Su,Fengzhen Huang, Wei Xue, Chao Zheng, Yan Qian, Shufen Chen,Linghai Xie,Wei Huang. 

Key Laboratory for Organic Electronics and Information Displays, Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210046, People’s Republic of China and

National Laboratory of Solid State Microstructures, Physics Department, Nanjing University, Nanjing 210093, People’s Republic of China.

 

Abstract

 

Composite nanofibers of poly(vinylidene fluoride) (PVF2) with silver nanoparticles are fabricated by electrospinning. According to the X-ray diffraction patterns and Fourier transform IR (FTIR) spectra, the content of piezoelectric {Beta}-polymorph of PVF2 is enhanced in the composite fibers of PVF2 and silver as compared with the pristine PVF2 raw materials and electrospun nanofibers. The differential scanning calorimeter (DSC) measurement indicates that the composite of PVF2 and silver has higher melting point and crystallization temperature than that of pristine PVF2 nanofibers. Moreover, the existence of silver nanoparticles greatly enhances the dielectric constant of PVF2nanofibers 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.

Copyright © 2012 Wiley Periodicals, Inc.

 

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