Abstract
Carbon-fiber-reinforced plastic (CFRP) can be difficult to recycle owing to the presence of thermosetting plastics such as epoxy resin. Therefore, it is important to develop more efficient methods for recycling CFRP. Herein, we investigated the chemical recycling of CFRP containing an epoxy matrix resin via a process involving superheated and supercritical acetone. The decomposition efficiency of the epoxy resin in the CFRP at 2–14 MPa and 350 °C increased with increasing reaction time over the first 60 min, but then decreased over longer reaction times because the decomposition products carbonized. Furthermore, the decomposition efficiency increased with increasing reaction pressure and acetone density, to a maximum of 95.6% at 350 °C, 60 min, and a density of 4.35 mol/L (14 MPa). The decomposition rate of the epoxy resin in CFRP using superheated and supercritical acetone is rationalized by a surface-reaction and shrinking-core model, with large negative activation volumes.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
