Effect of shell-layer thickness on dielectric properties in Ag@TiO2 core@shell nanoparticles filled ferroelectric poly(vinylidene fluoride) composites

被引：56

作者：

Dang, Zhi-Min ^{[1
,2
]}

You, Shi-Shu ^{[1
]}

Zha, Jun-Wei ^{[1
]}

Song, Hong-Tao ^{[1
]}

Li, Sheng-Tao ^{[2
]}

机构：

[1] Beijing Univ Chem Technol, Key Lab Beijing City Preparat & Proc Novel Polyme, Beijing 100029, Peoples R China

[2] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2010年 / 207卷 / 03期

关键词：

POLYMER COMPOSITES; NANOCOMPOSITE;

D O I：

10.1002/pssa.200925471

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Ag@TiO2 core@shell nanoparticles filled ferroelectric poly(vinylidene fluoride) (PVDF)-based composites (0-3 connectivity) were prepared in order to study the effect of core@shell structure on dielectric permittivity in the Ag@TiO2/PVDF nanocomposites. The Ag@TiO2 core@shell nanoparticles were synthesized via a water-thermal meting route. Transmission electron microscope (TEM) images showed the nanoparticles were about 60-120 nm in diameter and the thickness of the shell layer was about 6-12 nm, which can be adjusted by changing the fabrication conditions. Results of dielectric measurements showed that the shell-layer thickness of the Ag@TiO2 core@shell nanoparticles played a key role in deciding the final values of the dielectric properties of the nanocomposites. The variation of dielectric properties of the nanocomposites with temperature also depends on the shell-layer thickness of the Ag@TiO2 core@shell nanoparticles. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：739 / 742

页数：4

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