Epoxy/α-alumina nanocomposite with high electrical insulation performance

被引：0

作者：

Yun Chen ^{[1
,2
]}

Donghai Zhang ^{[1
]}

Xiaofeng Wu ^{[1
]}

Haosheng Wang ^{[1
]}

Chong Zhang ^{[2
]}

Wei Yang ^{[2
]}

Yunfa Chen ^{[1
]}

机构：

[1] State Key Laboratory of Multi-phase Complex Systems,Institute of Process Engineering,Chinese Academy of Sciences

[2] State Key Laboratory of Advanced Transmission Technology,Global Energy Interconnection Research Institute

来源：

ProgressinNaturalScience:MaterialsInternational | 2017年 / 27卷 / 05期

关键词：

Nanocomposite; Epoxy resin; Insulation; α-alumina;

D O I：

暂无

中图分类号：

TB332 [非金属复合材料];

学科分类号：

0805 ; 080502 ;

摘要：

An experimental study was conducted to improve the electrical insulation of epoxy resin. The effects of boehmite, γ-alumina and α-alumina nanoparticles on the volume resistivity, dielectric strength and glass transition temperature of epoxy nanocomposites were investigated. The results showed that α-alumina nanoparticles displayed obvious advantages in enhancing electrical insulation performance of epoxy nanocomposites, compared to boehmite and γ-alumina nanoparticles. The direct current volume resistivity and breakdown strength of epoxy nanocomposite with 2.0 wt% α-alumina nanoparticles was improved to 2.2 × 10;Ω cm and76.1 kV mm;respectively. And these improved values of electrical insulation properties are much higher than these of epoxy nanocomposites reported in previous studies. The main reason of these improvements may be that the epoxy/α-alumina interaction zone was enhanced by crosslink.

引用

页码：574 / 581

页数：8

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