Synthesis of PVDF-graphene nanocomposites and their properties

被引：168

作者：

Rahman, Md. Ataur ^{[1
]}

Chung, Gwiy-Sang ^{[1
]}

机构：

[1] Univ Ulsan, Sch Elect Engn, Ulsan 680749, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 581卷

关键词：

PVDF; Reduced graphene oxide; Electric field induced strain; Dielectric constant; P-E loop; PIEZOELECTRIC PROPERTIES; POLYMER; PZT; FABRICATION;

D O I：

10.1016/j.jallcom.2013.07.118

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This study describes the effect of adding reduced graphene oxide (RGO) on the micro-structure, electric field-induced strain, and ferroelectric properties of polyvinylidene fluoride (PVDF). Nanocomposite film was prepared by simple solution casting of the PVDF/graphene oxide (GO) solution. PVDF/RGO film was produced by in situ thermal reduction of the PVDF/GO film. The effects of GO and RGO on the characteristics of PVDF were examined by scanning electron microscopy, energy dispersive spectroscopy, Fourier transform-infrared spectroscopy, and X-ray diffraction measurements. The electric field-induced strain was markedly enhanced up to S-max/E-max = 16.66 pm/V for 0.3 wt% GO loading. The dielectric constant increased from 16 to 69 at 1 kHz. The polarization-electric field loop exhibited enhanced remnant polarization from 0.8 to 2.5 mu C/cm(2). Therefore, the PVDF/graphene nanocomposite has adjustable piezoelectric and ferroelectric properties to be used for energy harvesting. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：724 / 730

页数：7

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