| 摘要 |
PROBLEM TO BE SOLVED: To provide a carbon fiber for molding, a nonwoven fabric and a fabric which can improve composite properties of a composite material suitable for RIM molding and a carbon-fiber-reinforced molding of a thermoplastic resin usable in e.g. automobile parts.SOLUTION: A carbon fiber bundle, a nonwoven fabric and a fabric suitable for RIM molding are treated with a sizing agent of a copolymerized polyamide resin having no moisture or reactive groups which affect a hardening agent, improves adhesiveness to matrix resins when used as a reinforcing material and provides a carbon-fiber-reinforced molding of a polyamide resin usable in e.g. automobile parts. |
