Carbon fiber reinforced polymer (CFRP) composites have excellent characteristics of low density and high mechanical strength so that they have been used for several fields such as aerospace industry and aviation materials and so on. However, waste CFR...
Carbon fiber reinforced polymer (CFRP) composites have excellent characteristics of low density and high mechanical strength so that they have been used for several fields such as aerospace industry and aviation materials and so on. However, waste CFRP composites are difficult to be recycled because they contain thermosetting plastics such as epoxy resin. In this study, in order to remove epoxy resin from waste CFRP materials, they were treated with organic solvents along with sodium hydroxide with refulxing. Carbon fibers and epoxy resins were well-separated under the experimental conditions. Scanning electron microscopy images confirmed that the curing polymer resins have been totally removed from the carbon fibers. The removed organic materials were analyzed with GC/MS. The experimental results will be presented in detail.