Preparation and Dielectric Properties of Alumina Filled Epoxy Nano-Composite

Hui Cheng Shi; Nai Kui Gao; Hai Yun Jin; Chuan Bin Wang

doi:10.4028/www.scientific.net/MSF.658.463

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HomeMaterials Science ForumMaterials Science Forum Vol. 658Preparation and Dielectric Properties of Alumina...

Preparation and Dielectric Properties of Alumina Filled Epoxy Nano-Composite

Abstract:

The reported enhancement in dielectric properties obtained for polymer nano-composite seemed to be very encouraging. To further understand the dielectric behavior of epoxy nano-composite, aluminum oxide (Al2O3) nano-particles were incorporated into bisphenol A epoxy resin, and the dependence of nano-particle content and the dielectric properties was investigated in this study. Results showed that, when nano-particle contents was no more than 10phr, relative permittivity (εr) decreased to be lower than that of monolithic epoxy, and the minimum value appeared in 4phr nano-particle filled composite. The minimum value of tan delta (tanδ) appeared in 6phr nano-particle filled composite. DC volume resistivity (ρv) increased due to the introduction of nano-particles when the filler content is very small (about 2phr).

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Materials Science Forum (Volume 658)

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463-466

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.658.463

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Online since:

July 2010

Authors:

Hui Cheng Shi, Nai Kui Gao, Hai Yun Jin, Chuan Bin Wang

Keywords:

Alumina, Dielectric Property, Epoxy Resin (ER), Nanocomposite, Scanning Electron Microscope (SEM)

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