REACTIVE INJECTION MOLDING MATERIAL USING CATALYTIC REACTION OF LEWIS ACID

摘要

PURPOSE:The titled material useful as a structural material, metal substitute material, etc., having improved flexural modulus, rapid curing properties, productivity, and small molding shrinkage, obtained by blending an epoxy resin with a specific amount of catalyst of Lewis acid, etc. CONSTITUTION:An epoxy resin (preferably bisphenol A epoxy resin) is blended with 0.05-5.0wt% Lewis acid catalyst (preferably proton acid or halogen metal), or 0.05-5.0wt% Lewis acid catalyst, 10-70vol%, preferably 60-70wt% filler (preferably carbon fiber, or aramide fiber), or 0.05-5.0wt% Lewis acid catalyst, 10-70vol%, preferably 60-70vol% Lewis acid catalyst, and an expandable compound (preferably spiro ortho ester, etc.) to give the desired material.