| 摘要 |
PURPOSE:To prepare FRTP of high quality by providing cuts in the cutting direction of fibers in a long fiber prepreg. CONSTITUTION:In the preparation of fiber reinforced thermoplastic which is molded by superposing a plurality of sheet-shaped prepregs formed by impregnating thermoplastic resin into reinforcing fibers disposed in one direction, a number of cuts 3 are provided in a manner to cut the direction 1 of reinforcing fibers of a sheet-shaped prepreg 2. In that case, the length of cuts is preferably 2-10 mm, and the intervals between cuts are preferably 2-30 mm in rows in the cutting direction, and the intervals between said rows are preferably 5-100 mm. By said arrangement, FRTP of high quality and of good fluidity at the time of molding, and without molding warps, torsions and uneven strength after molding due to uneven flow or the like of fibers during molding is prepared. |
