| 摘要 |
PROBLEM TO BE SOLVED: To provide CFRP in which a weight average molecular weight of a matrix resin is high, toughness is excellent, cracks are hard to propagate, and mechanical characteristics, particularly, impact resistance is excellent.SOLUTION: A carbon fiber composite material has a nonwoven fabric formed of a carbon fiber having a fiber length of 5-50 mm, and polyarylene sulfide having a weight average molecular weight of 70,000 or more and 300,000 or less as a matrix resin. Crack propagation energy Ep obtained by the instrumented Charpy impact test is in a range of 0.2-2 [J].SELECTED DRAWING: Figure 1 |
