Chemical Recycling of Carbon Fiber Reinforced Epoxy Composites Using Mild Conditions

  • AbstractThe increased use of carbon fiber reinforced thermosets generates more waste and end‐of‐life products. However, an efficient recycling method for the expensive carbon fibers has not yet been developed. The selective decomposition of amine‐cured epoxy resin under mild conditions is presented. A two‐step method was investigated to decompose the epoxy resin. The optimum parameters were initially determined using a model compound. By analysis of the reaction products, a cleavage of the C–N bond according to the Cope elimination could be proven. Therefore, the Cope elimination is suggested as the main step of the decomposition of amine‐cured epoxy resins in presence of hydrogen peroxide. By dissolving the resin, it is possible to recover resin‐free fibers with unimpaired mechanical properties.

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Metadaten
Author:Elisabeth Schamel, Gerd Wehnert, Herbert Schlachter, Dominik Söthje
DOI:https://doi.org/10.1002/cite.202100048
ISSN:0009-286X
ISSN:1522-2640
Parent Title (English):Chemie Ingenieur Technik
Publisher:Wiley
Document Type:Article
Language:English
Date of first Publication:2021/07/21
Reviewed:Begutachtet/Reviewed
Contributing Corporation:Technische Hochschule Nürnberg
Release Date:2024/06/10
Volume:93
Issue:10
Pagenumber:10
First Page:1619
Last Page:1628
Research Themes:Materialien & Produktionstechnik
Licence (German):Creative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International
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