A METHOD FOR RECYCLING SCRAPS OF PREPREG MATERIALS

摘要

A method for manufacturing a recycled prepreg material (DW) in strip form, composed of fibre sections embedded in a resin matrix, is described. According to the method, a charge of flat scraps (S) from a prepreg starting material is supplied, recording the overall area of the scraps. Then the scraps are fragmented by means of cutting so as to obtain cut fragments (S2) of predetermined size. A strip of backing material (SW) and a strip of protective material (PW) are supplied. The cut fragments are then distributed in a random manner on the strip of backing material, the feeding speed of the strip of backing material being adjusted depending on the recorded area of the input scraps, so that the cut fragments form a substantially homogeneous layer. The strip of protective material is then arranged over the cut fragments distributed on the strip of backing material, and the whole assembly is then compacted so as to form a strip of recycled prepreg material (DW).