Prepreg and fiber-reinforced composite material

• Main Authors: KAMAE, TOSHIYA, KAWASAKI, JUNKO, YOSHIZAKI, SOICHI, FURUKAWA, KOJI, SANO, KENTARO
• Format: Patent
• Language: Chinese; English
• Published: 16.10.2019
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

An object of the present invention is to provide a prepreg excellent in tackiness, resin strength after curing and non-fiber-direction strength, and a fiber-reinforced composite material using the prepreg. The present invention provides a prepreg comprising a reinforcing fiber and a resin composition, wherein the resin composition includes the following components [A] to [C], and the viscosity of the resin composition at 25 DEG C is 1000 Pa·s or more. [A]: an epoxy resin, [B]: dicyandiamide, and [C]: a compound having a melting point of 130 DEG C or lower and a difference in solubility parameter with [B] of 8 or less.