POWDERY EPOXY COATING COMPOSITION FOR BUSBAR WITH EXCELLENT LONG-TERM HEAT RESISTANCE AND INSULATION PROPERTY

摘要

PURPOSE: An epoxy powder paint composition is provided to maintain insulating performance at high temperature even in case exposed for long term by excellent effect of increasing edge cover property. CONSTITUTION: An epoxy powder paint composition comprises: 20-55 weight% of thermosetting bisphenol A type epoxy resin of which epoxy equivalent is 1100-1200; 10-45 weight% of an isocyanate-modified bisphenol A type epoxy resin with the epoxy equivalent of 400-500, 0.1-10 weight% of amine-based hardener, 0.5-2 weight5 of a curing accelerator, 0.1-2 weight% of mercaptoalkylalkoxysilane as an adhesion tackifier, 0.4-2 weight% of a mixture of aluminum oxide and polyethylene wax, 0.1-1 weight% of color pigment, and 30-50 weight% of inorganic filler.