Recycling and Disposal
This article provides an introduction to the concepts discussed in the articles under the Section “Recycling and Disposal of Composites” in ASM Handbook, Volume 21: Composites. This Section presents the reader the most recent developments in the open-and closed-loop recycling of polymer and metal matrix composites.
This article begins with a discussion on driving forces for recycling of composites. It reviews the recycling process of thermoset-matrix composites and thermoplastic-matrix composites. The recycling of thermoset-matrix composites includes regrind, chemical, energy recovery, and thermal processes. Thermoplastic-matrix composites are recycled by regrinding, compounding/blending and reprocessing. The article concludes with discussion on the properties of recycled composite fibers.