| abstract |
PURPOSE: To obtain the title matrix resin composition well balanced between heat resistance and elongation and improved in resin flow-out resistance during molding by curing as a carbon fiber reinforced plastic, by constituting it from three specified types of epoxy resins and dicyandiamide. n CONSTITUTION: A matrix resin composition is formed by mixing 10W70pts.wt., desirably, 20W50pts.wt. cresol novolac epoxy resin (A) (e.g., ECN-1273, a product of Japan Ciba-Geigy) is mixed with 10W70pts.wt., desirably, 20W50pts.wt. bisphenol epoxy resin (B) (e.g., Araldite 6071, a product of Japan Ciba-Geigy) and 3W40pts.wt., desirably, 5W20pts.wt. phenoxy resin or its epoxy-modified resin (C) (e.g., PKHM-30, a product of UCC), 1W10pts.wt., based on 100pts.wt. in total of A, B and C, dicyandiamide (D) and 1W10pts.wt. cure accelerator (E) (e.g., 3-(3,4-dichlorophenyl)-1,1-N-dimethylurea. n COPYRIGHT: (C)1989,JPO&Japio |