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http://dx.doi.org/10.4313/JKEM.2008.21.6.538

Thermal, Dielectric Properties Characteristics of Epoxy-nanocomposites for Organoclay of Several Types  

Park, Jae-Jun (중부대학교 전기전자공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.21, no.6, 2008 , pp. 538-543 More about this Journal
Abstract
Nanostructured materials are attracting increased interest and application. Exciting perspectives may be offered by electrical insulation. Epoxy/Organoclay nanocomposites may find new and upgraded applications in the electrical industry, replacing conventional insulation to provide improved performances in electric power apparatus, e.g, high voltage motor/generator stator winding insulation, dry mold transformer, etc. In the paper work, the electrical and thermal properties of epoxy/organoclay nanocomposites materials were studied. The electrical insulation characteristics were analyzed through the permittivity characteristics. by analyzing the permittivity spectra, it was found that dielectric constant becomes smaller with increase frequency and becomes larger with increase temperature. This indicates restriction of molecular motion and strong bonds at the epoxy/organoclay nanocomposites. The morphology of nanocomposites obtained was examined using TEM and X-ray diffraction. It has been shown that the presence of polar groups leads to an increased gallery distance and partial exfoliation. Nevertheless, full exfoliation of clay platelets has not been achieved.
Keywords
Epoxy/organoclay nanocomposites; Dielectric constant; Nanoclay; TEM; XRD; DSC;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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