| 摘要 |
Provided are a prepreg and a carbon-fiber-reinforced composite material having excellent long-term storage stability and adhesiveness between a carbon fiber and a matrix resin. The present invention is a prepreg made by impregnating a sizing-agent-coated carbon fiber, which is coated with a sizing agent including an aliphatic epoxy compound (A) and an aromatic epoxy compound (B1), with a thermosetting resin composition including a thermosetting resin (D), a latent curing agent (E), and, if necessary, an additive (F) other than the thermosetting resin (D) and the latent curing agent (E), the prepreg being characterized in that the ratio ((a)/(b)) between (a) the height of a binding energy component attributed to CHx, C-C, and C=C and (b) the height of a binding energy component attributed to C-O in a C1s core spectrum obtained by measuring the surface of said sizing-agent-coated carbon fiber by X-ray photoelectron spectroscopy is within a predetermined range. |
