FIBER PREFORM FOR MOLDING, FIBER-REINFORCED PLASTIC AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To obtain a fiber preform for molding, capable of molding an excellent FRP free from voids and an unimpregnated area. SOLUTION: This fiber preform for molding has the rate of the maximum impregnation rate of a liquid resin in the direction of a layer perpendicular to the thickness direction of a fiber sheet for molding to an impregnation rate of the liquid resin in the thickness direction of the fiber sheet for molding of 2 when one or plural laminated fiber sheets for molding composed of reinforced fiber are arranged in a mold, the liquid resin is injected to the mold and the one or plural laminated fiber sheets are molded. This fiber-reinforced plastic is produced by using the fiber preform for molding.