| 摘要 |
PROBLEM TO BE SOLVED: To provide an epoxy resin composition for tow prepreg which has high impact resistance and deformation resistance as a fiber-reinforced composite material and can be suitably used for a high pressure container that is excellent in heat resistance and fills hydrogen gas, and to provide a tow prepreg having the resin composition.SOLUTION: There are provided an epoxy resin composition for tow prepreg which contains [A] an epoxy resin having two epoxy groups, [B] an epoxy resin having 3 or 4 epoxy groups, [C] dicyandiamide and [D] an urea-based curing accelerator, where the [B] component is more than 0 mass% and less than 6 mas% based on the total amount of the composition containing the [A] to [D] components, and has specific physical properties; and a tow prepreg formed by impregnating the resin composition with a reinforced-fiber bundle.SELECTED DRAWING: None |
