EPOXY RESIN COMPOSITION FOR FIBER-REINFORCED COMPOSITE MATERIAL, PREPREG, AND FIBER-REINFORCED COMPOSITE MATERIAL

摘要

In order to realise the objectives stated above, the thermosetting resin composition for carbon fibre reinforced composite materials of the present invention chiefly comprises the following components. (A) Thermosetting resin (B) Compound containing one functional group which can react with thermosetting resin (A) or its curing agent, and a moiety selected from the following formulae (1) to (4) Furthermore, the present invention also relates to a prepreg formed by impregnating reinforcing fibre with the aforesaid resin composition and to carbon fibre reinforced composite materials comprising reinforcing fibre and a cured aforesaid thermosetting resin composition. In accordance with the present invention, there can be obtained a thermosetting resin composition where the adhesion to reinforcing fibre by the cured material and the elastic modulus of the cured material are excellent, and by using this resin composition there can be obtained carbon fibre reinforced composite materials which are excellent in their 0 DEG compressive strength, 90 DEG tensile strength and interlaminar shear strength, and which also have outstanding impact resistance.