Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/14287
Title: Formation of piezoelectric £]-phase crystallites in poly(vinylidene fluoride)-graphene oxide nanocomposites under uniaxial tensions
Authors: Jiang, ZY
Zheng, GP 
Zhan, K
Han, Z
Yang, JH
Keywords: Graphene oxides
Low-dimensional ferroelectrics
Piezoelectric
Poly(vinylidene fluoride)
Issue Date: 2015
Publisher: Institute of Physics Publishing
Source: Journal of physics D : Applied physics, 2015, v. 48, no. 24, 245303 How to cite?
Journal: Journal of Physics D: Applied Physics 
Abstract: A combination of chemical addition and mechanical deformation is employed to develop a nearly pure £] crystalline phase in poly(vinylidene fluoride) (PVDF). The mechanical strains for the formation of pure £] phase in PVDF-graphene oxide (PVDF-GO) nanocomposites are found to be only half of that for PVDF deformed at the same temperature. Based on the creep experiments, piezoelectric force microscopy and mechanical anelastic relaxation, it is shown that the attachments of PVDF molecule chains to the GO sheets caused by the interaction between the -CF2 or -CH2 groups of PVDF and the functional groups of GOs could facilitate the formation of piezoelectric £]-phase crystallites in the stretched nanocomposites. A model is proposed to elucidate the easy formation of the piezoelectric £] phase in the PVDF-GO nanocomposites under uniaxial tensions.
URI: http://hdl.handle.net/10397/14287
ISSN: 0022-3727
DOI: 10.1088/0022-3727/48/24/245303
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