Recycling of composite materials

Polymer matrix composites have long been used on a large scale in a variety of industrial applications (transport, construction, etc.). Their recyclability, perceived as difficult or at least perfectible due to their heterogeneity and the still frequent use of thermosetting matrices (infusible after manufacture), can however act as a brake on their wider penetration of certain markets. Some users may prefer alternative materials that are easier to recycle. Environmental concerns and regulatory pressure have prompted manufacturers in the composites sector to develop recycling and recovery solutions, whether in terms of materials, heat/energy or chemicals. Against this regulatory backdrop, a number of industry initiatives aim to set up dismantling/recycling/upgrading channels for these materials, either by application sector or across the board.