PREPREG, FIBER-REINFORCED COMPOSITE MATERIAL, AND RESIN COMPOSITION CONTAINING PARTICLES

摘要

A prepreg 10 comprises: a reinforcing fiber layer 3 including reinforcing fibers 1 and a resin composition 2 with which the space between fibers thereof is impregnated and which contains (A) a benzoxazine resin, (B) an epoxy resin, and (C) a curing agent having 2 or more phenolic hydroxy groups; and surface layers 6a and 6b provided on the surfaces of the reinforcing fiber layer 3 and containing (A) a benzoxazine resin, (B) an epoxy resin, (C) a curing agent having 2 or more phenolic hydroxy groups, and (D) polyamide resin particles 4 having an average particle size of 5 to 50 wherein the polyamide resin particles 4 include a particle made of a copolymer in which caprolactam and laurolactam are copolymerized at a molar ratio of 9:1 to 7:3 and having a melting point of 180° C. or more.

主权项

1. A prepreg comprising:
a reinforcing fiber layer including reinforcing fibers and a resin composition with which the space between fibers of the reinforcing fibers is impregnated and which contains (A) a benzoxazine resin, (B) an epoxy resin, and (C) a curing agent having 2 or more phenolic hydroxy groups in a molecule; and a surface layer provided on at least one surface of the reinforcing fiber layer and containing (A) a benzoxazine resin, (B) an epoxy resin, (C) a curing agent having 2 or more phenolic hydroxy groups in a molecule, and (D) polyamide resin particles having an average particle size of 5 to 50 μm, wherein the polyamide resin particles include a particle made of a copolymer in which caprolactam and laurolactam are copolymerized at a molar ratio of 9:1 to 7:3 and having a melting point of 180° C. or more.