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Recycling of Carbon Fibres and Subsequent Upcycling for the Production of 3D-CFRP Parts

Carbon fibres (CF) are used in CF reinforced plastic (CFRP) components. However, waste from CF yarn trim, CFRP and the end of life (EOL) CFRP structures will cause a recycling challenge in the next decades because of strict environmental regulations. Currently, recycling is carried out almost entire...

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Autores principales: Rabe, David, Häntzsche, Eric, Cherif, Chokri
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9320623/
https://www.ncbi.nlm.nih.gov/pubmed/35888517
http://dx.doi.org/10.3390/ma15145052
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author Rabe, David
Häntzsche, Eric
Cherif, Chokri
author_facet Rabe, David
Häntzsche, Eric
Cherif, Chokri
author_sort Rabe, David
collection PubMed
description Carbon fibres (CF) are used in CF reinforced plastic (CFRP) components. However, waste from CF yarn trim, CFRP and the end of life (EOL) CFRP structures will cause a recycling challenge in the next decades because of strict environmental regulations. Currently, recycling is carried out almost entirely by the use of pyrolysis to regain CF as a valuable resource. This high temperature process is energy consuming, and the resulting fibres are brittle. Hence, they are not suitable for processing of textiles into yarns or new reinforcement structures. To enable grave to cradle processing, a new approach based on a solvolysis recovery of CF and subsequent yarn spinning to obtain hybrid yarns suitable for textile processing, especially by weft knitting, was the focus of the international research project IGF/CORNET 256EBR. For the first time, it was possible to process hybrid yarns made of rCF on a weft knitting machine to produce biaxial reinforced structures to form CFRP from recycled carbon fibres. Therefore, various modifications were done on the textile machinery. In this way, it was possible to process the rCF and to get out a reproducible textile structure for the production of 3D recycled CFRP (rCFRP) parts.
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spelling pubmed-93206232022-07-27 Recycling of Carbon Fibres and Subsequent Upcycling for the Production of 3D-CFRP Parts Rabe, David Häntzsche, Eric Cherif, Chokri Materials (Basel) Article Carbon fibres (CF) are used in CF reinforced plastic (CFRP) components. However, waste from CF yarn trim, CFRP and the end of life (EOL) CFRP structures will cause a recycling challenge in the next decades because of strict environmental regulations. Currently, recycling is carried out almost entirely by the use of pyrolysis to regain CF as a valuable resource. This high temperature process is energy consuming, and the resulting fibres are brittle. Hence, they are not suitable for processing of textiles into yarns or new reinforcement structures. To enable grave to cradle processing, a new approach based on a solvolysis recovery of CF and subsequent yarn spinning to obtain hybrid yarns suitable for textile processing, especially by weft knitting, was the focus of the international research project IGF/CORNET 256EBR. For the first time, it was possible to process hybrid yarns made of rCF on a weft knitting machine to produce biaxial reinforced structures to form CFRP from recycled carbon fibres. Therefore, various modifications were done on the textile machinery. In this way, it was possible to process the rCF and to get out a reproducible textile structure for the production of 3D recycled CFRP (rCFRP) parts. MDPI 2022-07-20 /pmc/articles/PMC9320623/ /pubmed/35888517 http://dx.doi.org/10.3390/ma15145052 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Rabe, David
Häntzsche, Eric
Cherif, Chokri
Recycling of Carbon Fibres and Subsequent Upcycling for the Production of 3D-CFRP Parts
title Recycling of Carbon Fibres and Subsequent Upcycling for the Production of 3D-CFRP Parts
title_full Recycling of Carbon Fibres and Subsequent Upcycling for the Production of 3D-CFRP Parts
title_fullStr Recycling of Carbon Fibres and Subsequent Upcycling for the Production of 3D-CFRP Parts
title_full_unstemmed Recycling of Carbon Fibres and Subsequent Upcycling for the Production of 3D-CFRP Parts
title_short Recycling of Carbon Fibres and Subsequent Upcycling for the Production of 3D-CFRP Parts
title_sort recycling of carbon fibres and subsequent upcycling for the production of 3d-cfrp parts
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9320623/
https://www.ncbi.nlm.nih.gov/pubmed/35888517
http://dx.doi.org/10.3390/ma15145052
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