CURABLE EPOXY COMPOSITION WITH MILLED GLASS FIBER

摘要

A curable epoxy composition for the production of an electrical insulation is provided. The curable epoxy composition comprises epoxy resin and harder, and a milled glass fiber.The epoxy resin is diglycidylether of bisphenol A, or diglycidylether of bisphenol F, or mixture of diglycidylether of bisphenol A and diglycidylether of bisphenol F, or cycloaliphatic epoxy resin, or hydrophobic cycloaliphatic epoxy resin; and and said hardener, preferably a phthalic acid anhydride or something similar. The milled glass fiber has a diameter of preferably 8-15 microns. The curable epoxy composition further comprises a filler and the filler is coated with a coating material. The present invention also provides a method for making shaped articles using a composition comprising the steps of preheating said curable epoxy composition; transferring said curable epoxy composition into a pre-heated mold, preferably under vacuum; and curing said epoxy composition at elevated temperature for a time to obtain a shaped articles with an infusion cross-linked structure.