| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a prepreg material which can be provided to a structural material by improving adhesiveness between a carbon fiber to be a reinforcing material and a polypropylene phase and improving an reinforcing effect. Ž<P>SOLUTION: In the carbon filament-reinforced polypropylene composite material for the structural material which includes 30 to 150 pts.mass polypropylene (B) and 1 to 150 pts.mass epoxy modified polyolefin (C) to 100 pts.mass carbon filament (A) having ≥7.5 mm length and wherein (B) and (C) satisfy the range of formula (1), interface adhesiveness between the polypropylene and the carbon filament is improved and rigidity and strength are heightened. 1/40<C/(B+C)<1/2 (1). Adhesiveness of the polypropylene to be a mother phase and the carbon filament is improved by reaction of the epoxy modified polyolefin existing in an interface between the polypropylene and the carbon fiber with an acid group of the carbon fiber surface and, as a result, a molded product having high specific strength is obtained. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
|
