BASALT FABRIC-EPOXY RESIN COMPOSITE WITH BETTER THERMAL CONDUCTIVITY AND ENHANCED CAPACITANCE VALUE

摘要

The invention describes the processing and fabrication of Basalt fabric-epoxy resin composite laminate with better thermal conductivity for application as electrical insulation and dielectric properties of enhanced capacitance. It is therefore the primary object of the invention to prepare a basalt fabric - epoxy resin composite laminate suitable for application as an electrically insulating material. Another objective is to prepare the basalt fabric - epoxy resin composite laminate using commercially available epoxy resin system consisting of a bisphenol A epoxy, a suitable carboxylic acid anhydride based liquid hardener and the tertiary amine accelerator to obtain composite laminate suitable for application as an electrically insulating material. Another objective is to prepare the basalt fabric - epoxy resin composite laminate using an impregnating process under vacuum and heating obtain composite laminate suitable for application as an electrically insulating material. Further objective is to prepare the basalt fabric - epoxy resin composite laminate better thermal conductivity for application as electrical insulation and dielectric properties of enhanced capacitance. Basalt Fabric, which is manufactured from the naturally occurring igneous basalt rock, arranged in the cavity of a suitable die, is then treated together with commercially available epoxy resin system of bisphenol A epoxy resin, carboxylic acid anhydride based liquid hardener and the tertiary amine accelerator in a pre-defined reacting ratio followed by heat treatments both for pre and post curing in order to fabricate the basalt fabric - epoxy resin composite laminate. The derived basalt fabric - epoxy resin composite laminate show better thermal conductivity and enhancement of capacitance value of 100, which is three times more than that of the glass fabric - epoxy resin composite laminate. The basalt fabric - epoxy resin composite laminate have great potential for fabricating as various components or sub-components in the area of high voltage electrical insulation applications.