Research on Process Parameters for Recycling CF/EP Composites by Thermal Excitation of Oxide Semiconductor

There has a great economic and environmental significance for recycling high performances carbon fibers from the waste carbon fiber reinforced polymers. This paper presented a novel method for recycling carbon fiber (CF)/epoxy resin (EP) composites by thermal excitation oxide semiconductor; the effects of process parameters including the temperature, processing time, concentration and flow of O-2 on decomposition rate of resin matrix was analyzed; through some methods of analysis and testing such as micro-morphology, monofilament tensile strength, Raman spectra, the effects of process parameters on morphology, mechanical property and surface chemistry of the recycle carbon fibers were investigated; the components of the gas products were investigated by gas chromatography. The research findings provided theoretical foundations for estimating the process parameters and understanding the general law of resin matrix decomposition.