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 of the reinforcing fibers is impregnated and which contains (A) a benzoxazine resin, (B) an epoxy resin, and (C) a curing agent represented by the following formula (C-1); 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 represented by the following formula (C-1), and (D) polyamide resin particles 4 having an average particle size of 5 to 50 wherein the polyamide resin particles 4 include a polyamide 12 resin particle or a polyamide 1010 resin particle.;

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 represented by the following formula (C-1); 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 represented by the following formula (C-1), and (D) polyamide resin particles having an average particle size of 5 to 50 μm, wherein the polyamide resin particles include a polyamide 12 resin particle or a polyamide 1010 resin particle. in formula (C-1), R1, R2, R3, and R4 represent a hydrogen atom or a hydrocarbon group; when R1, R2, R3, or R4 is a hydrocarbon group, they are a linear or branched alkyl group having 1 to 4 carbon atoms, or adjacent R1 and R2 or adjacent R3 and R4 bind to form a substituted or unsubstituted aromatic ring having 6 to 10 carbon atoms or a substituted or unsubstituted alicyclic structure having 6 to 10 carbon atoms; and x represents 0 or 1.