| 摘要 |
PROBLEM TO BE SOLVED: To provide a tow prepreg producible of a fiber-reinforced composite material, which has very low self-adhesiveness, excellent unreeling property from a bobbin, excellent process passing property, and very high fracture toughness; and to provide an epoxy resin composition for the tow prepreg. SOLUTION: The epoxy resin composition for the tow prepreg includes a predetermined epoxy resin, a curing agent, a curing accelerator, and a core shell polymer, and has viscosity of 60 Pa s or less at 25°C. A cured product obtained by curing the epoxy resin composition at 135°C for 2 hours has fracture toughness (KIc) of 1.0 MPa m<SP>0.5</SP>or more. COPYRIGHT: (C)2011,JPO&INPIT |
