Fiber and monomer recovery from an amine-cured epoxy composite using molten NaOH–KOH
We report a rapid route to reclaim carbon fiber (CF) fabric and monomeric chemicals from amine-epoxy CF-reinforced polymer (CFRP) composites. We use a reaction that occurs in molten NaOH-KOH eutectic to selectively cleave aryl ether and amine linkages, which involves two temperature-dependant mechanisms. Bisphenol-A is isolated in up to quantitative yields, and recovered CF fabric is remanufactured into 2nd-generation CFRPs.
Authors
- Travis J. Williams (ORCID: https://orcid.org/0000-0001-6299-3747)
- Valeriy Cherepakhin (ORCID: https://orcid.org/0000-0003-1966-9794)
- Zehan Yu (ORCID: https://orcid.org/0000-0002-3448-6542)
- Youngdon Lim (ORCID: https://orcid.org/0000-0003-2675-2844)
- Steven Nutt (ORCID: https://orcid.org/0000-0001-9877-1978)
Institutions
- University of Southern California (US)
Publication Details
- Journal
- Green Chemistry
- Published
- 2024-12-03
- DOI
- https://doi.org/10.1039/d4gc05299d
- Citations
- 9
- Primary Topic
- Fiber-reinforced polymer composites
- Type
- article
- Field-Weighted Citation Impact
- 1.91
Funders
- National Science Foundation
- University of Southern California
- National Institutes of Health
- Division of Civil, Mechanical and Manufacturing Innovation
- Division of Chemistry