Enhanced dielectric properties of epoxy resin with high content of nano-Al2O3 composites

被引：2

作者：

Xu, Dandan ^{[1
]}

Wang, Tingting ^{[1
]}

Han, Xinghao ^{[1
]}

Qiao, Ru ^{[1
]}

机构：

[1] XiZang Agr & Anim Husb Coll, Tibet, Peoples R China

来源：

2017 3RD INTERNATIONAL CONFERENCE ON ENVIRONMENTAL SCIENCE AND MATERIAL APPLICATION (ESMA2017), VOLS 1-4 | 2018年 / 108卷

基金：

中国国家自然科学基金;

关键词：

Epoxy matrix; nano-Al2O3; dielectric constant; dielectric loss; THERMAL-CONDUCTIVITY; NANOCOMPOSITES; STABILITY; FRACTURE; SURFACE;

D O I：

10.1088/1755-1315/108/2/022074

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Epoxy resin was modified by adding different contents (30%, 60% wt.) of nano-Al2O3 particles, which were modified by silicon coupling agent KH560 (gamma-amino propyl triethoxy silane), in the form of nano-Al2O3 particles/epoxy composites, via casting method to improve the dielectric properties. The chemical structures of modified and unmodified nano-Al2O3 particles and the morphologies of composites fractures were characterized by Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM) respectively. And the thermal property and dielectric properties were also investigated. The results showed the modified nanoAl(2)O(3) particles well dispersed in the epoxy matrix and the thermal stability of composites was improved. And the dielectric constant of the composites was up to 14 when the content of nano-Al2O3 was 60%, which was 2 times larger than that of pure epoxy. Moreover, the composites also exhibited good dielectric property under high frequencies ranged from 1x107 to 4x107 Hz.

引用

页数：9

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