Process for recycling material containing high-tenacity fibers impregnated with a resin matrix

摘要

The invention pertains to a process for recycling a material containing high-tenacity fibers impregnated with a resin matrix, characterized in that the process comprises the steps of: introducing the material containing the fibers and the resin matrix into a hammer mill which comprises a shaft mounted with at least three series or stages of hammers and a substantially cylindrical sieve disposed substantially concentrically around the shaft, milling the material for a time sufficient to grind at least 50%, and preferably at least 80%, of the resin into small particles, separating the small resin particles from the fibers by means of the sieve. This process allows a very high degree of separation and does not require additional process steps like cryogenical chilling.