| 摘要 |
PURPOSE:To eliminate fuzzing of fibers and enhance an adhesion of long fibers to a matrix by a method wherein a structure contains a predetermined percentage by weight of reinforcing fibers oriented in parallel to the longitudinal direction of the structure with the same length as the structure, and the length of the structure is specified. CONSTITUTION:While a plurality of continuous fiber bundles 1 are oriented, the fiber bundles 1 are each opened by a plurality of opening means, such as opening rollers 2 and bars. Next, the opened fiber bundles 1 are impregnated with a themoplastic resin melted in a melting and extruding machine 5 or the like by a cross head die 4 or the like. At this time, the structure contains 10-80wt.% reinforcing fibers oriented in parallel to the longitudinal direction of the structure with the same length as the structure, and the length of the structure is determined to 3-100mm. Furthermore, fibers separated from the structure are 1000ppm or less in a shaking test wherein a container loaded with the structure in the amount of 10vol.% is rotated 500 times through 180 deg. alternately at a speed of 60/min. |
