The influence of moisture on the electrical performance of XLPE/silica nanocomposites

被引：0

作者：

Hui, L. ^{[1
]}

Nelson, J. K. ^{[1
]}

Schadler, L. S. ^{[1
]}

机构：

[1] Rensselaer Polytech Inst, Troy, NY 12180 USA

来源：

PROCEEDINGS OF THE 2010 IEEE INTERNATIONAL CONFERENCE ON SOLID DIELECTRICS (ICSD 2010) | 2010年

关键词：

nanodielectrics; moisture; breakdown strength; dielectric spectroscopy; DIELECTRIC-RELAXATION; WATER;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Moisture is known to influence the electrical performance of polymers. The introduction of nano particulates creates numerous additional pathways which radically affect the migration of moisture in nanocomposite materials. In this paper, cross-linked polyethylene/silica nanocomposites at loadings of 5 wt% and 12.5 wt% of both unfunctionalized and vinylsilane-functionalized nano silica were exposed to humid environments at elevated temperature. Nanocomposites were found to have a much higher moisture uptake compared to cross-linked polyethylene base resin. The dielectric properties of these hydrothermal conditioned samples were characterized by breakdown strength measurements, pulsed electro-acoustic analysis, and dielectric spectroscopy. A close relationship between particle loading, moisture uptake and dielectric properties was found, which provides important evidence that determining the optimal particle loading of nanodielectrics should take moisture influence into account.

引用

页数：4

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