| 摘要 |
PROBLEM TO BE SOLVED: To provide a fiber-reinforced composite material that can achieve CAI, ILSS and interlaminar fracture toughness in high dimension at the same time, and can achieve especially high CAI and high ILSS at high temperature and high moisture.SOLUTION: A fiber-reinforced composite material comprises a laminate including two or more reinforcement fiber inclusion layers, includes a resin layer in each intercalation region of each reinforcement fiber inclusion layer, wherein the resin layer is a layer in which at least a polyether sulfone particle is impregnated in a cured material of a compound having a benzoxazine ring shown by formula (1) in a molecule and an epoxy resin, a ratio of a thickness of each resin layer to each reinforcement fiber inclusion layer is 1:2-6, and is useful for automobile use, railway vehicle use, aircraft use, ship application, a building component of a windmill or the like, and other general industrial use. (In the formula, Rdenotes a C1-12 chain alkyl group or the like, and H bonds to at least one C of an O position and a P position of a carbon atom of an aromatic ring to which an oxygen atom bonds). |
