METHOD OF PRODUCING CARBON FIBER-REINFORCED COMPOSITE MATERIAL

PROBLEM TO BE SOLVED: To provide a method of producing a carbon fiber-reinforced composite material capable of shortening production time by promptly diffusing resin when the resin is filled and impregnated in a direction orthogonal to a reinforced fiber base material in a VaRTM method using a unidi...

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Bibliographische Detailangaben
Hauptverfasser:	ITO TOSHIYUKI, YOSHIDA KEIGO, TATEGAKI YASUSHI, TERASAWA NORIYOSHI, TAKANO TSUNEO
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method of producing a carbon fiber-reinforced composite material capable of shortening production time by promptly diffusing resin when the resin is filled and impregnated in a direction orthogonal to a reinforced fiber base material in a VaRTM method using a unidirectional fiber base material and achieving excellent quality.SOLUTION: In a method of producing a carbon fiber-reinforced composite material, in approximation by the following formula (1) when viscosity of a liquid resin composition is defined as (mPa s) and an impregnation distance for which the liquid resin composition is impregnated in a unidirectional reinforced fiber base material at time t (min) is defined as L (mm) to achieve an approximately parallel flow from a direction orthogonal to a longitudinal direction of reinforced fibers constituting the unidirectional reinforced fiber base material, in a condition satisfying the following formula (2), the liquid resin composition is filled.