method of recycling of fibre reinforced composite materials have organic matrix

摘要

the present invention is to develop an innovative process, easy to dissolve in the organic matrix of the composite material under relatively mild conditions (p 390u00b0c, p 5bar) without changing the properties of the reinforcement (glass and carbon fibres.in this work, different composites have been used in the degradation of phenol and phenolic matrix: composite reinforced by carbon fibres and epoxy matrix composite reinforced by glass fiber and polyester matrix composite reinforced by fiber. err.the results obtained in this study show that: the temperature and duration of treatment have a significant effect on the degradation of the organic matrix composites.this study has allowed us to determine the optimal conditions to extract the organic matrix of the composite, which are: t = 390u00b0c time = 4, the phenolic resin (t = c = 1, the time for the polyester resin (t = 280 degrees, time = 1 for the phenol resin is a u00e9poxyle a reagentcapable of degrading matrix (composite resin), without changing the reinforcement fibres, glass fibres or carbon). these results were confirmed by the mechanical characterization of recovered fibres after heat treatment of the phenol and the analysis scanning electron microscopy was carried out on the surface of the fibers