The strengthening fiber backing material and fiber reinforced composite material null for the fiber reinforced composite material

摘要

PROBLEM TO BE SOLVED: To provide a reinforcing fibrous base material which can give a fiber-reinforced composite material excellent in the post-impact compression strength by such an RTM (Resin Transfer Molding) as a manufacturing method of impregnating a liquid matrix resin composition into the reinforcing fibrous base material and then curing it, and to provide a fiber-reinforced composite material comprising this reinforcing fibrous base material and a cured product of a matix resin.;SOLUTION: This reinforcing fibrous base material comprises at least the following constituents (A), (B) and (C): the constituent (A) is a reinforcing fiber, the constituent (B) is an interlaminar toughening material, and the constituent (C) is an interlaminar spacer which is substantially insoluble in a matrix resin.;COPYRIGHT: (C)2005,JPO&NCIPI