Reinforcing fiber substrate and composite material obtained therefrom

摘要

A reinforcing fiber substrate (11) formed by at least a reinforcing fiber yarn group arranged with reinforcing fiber yarns (12) in parallel to each other in one direction, wherein a resin material (14) whose main constituent is a thermoplastic resin is provided at 2 to 15% by weight at least on one surface of the reinforcing fiber substrate (11), and the reinforcing fiber volume fraction Vpf of the reinforcing fiber substrate (11) is in a range of 40 to 60%, a method to produce said reinforcing fiber substrate and a composite material made therefrom. A substrate excellent in handling property and a composite material excellent in mechanical properties can be obtained.