Poly (Vinylidene Fluoride)/Mg Doped CaCu3Ti4O12 Composites with Improved Dielectric Properties

被引:2
作者
Wang, Hanghang [1 ]
Cai, Huiwu [1 ]
Zhou, Wenying [1 ]
Liu, Shengnan [1 ]
机构
[1] Xian Univ Sci & Technol, Coll Chem & Chem Engn, Xian 710054, Shaanxi, Peoples R China
来源
6TH ANNUAL INTERNATIONAL CONFERENCE ON MATERIAL SCIENCE AND ENVIRONMENTAL ENGINEERING | 2019年 / 472卷
关键词
THERMAL-PROPERTIES; CONSTANT; NANOCOMPOSITES;
D O I
10.1088/1757-899X/472/1/012008
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The CaCu3-xMgxTi4O12 (CCMTO) particles were prepared by sol-gel method, ceramic/polymer composites made of CCTO and CCMTO particles as filler and polyvinylidene fluoride (PVDF) as matrix were prepared by powder mixing method. The microstructure and dielectric properties of the PVDF, CCTO, CCMTO particles and CCMTO/PVDF composites were investigated. The results indicate that the dielectric permittivity and the dielectric loss increased with increasing ceramics particles loading. The dielectric permittivity could reach 93 and dielectric loss was 0.2 when mass fraction of CCMTO is 60wt% at 100 Hz. SEM results show that CCTO and CCMTO particles dispersed well in the PVDF matrix. Doping Mg can improve dielectric permittivity of the CCTO/PVDF composites and slightly reduce the dielectric loss, compared raw CCTO/PVD composites.
引用
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页数:6
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