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

Research output: Contribution to journalResearch articleContributedpeer-review

Abstract

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.

Details

Original languageEnglish
Article number5052
JournalMaterials
Volume15
Issue number14
Publication statusPublished - 20 Jul 2022
Peer-reviewedYes

External IDs

PubMed 35888517
WOSLite 000833162300001
Mendeley e44ca1f9-5989-3d40-8ef8-2aeb40a3290d
unpaywall 10.3390/ma15145052
Scopus 85137263055

Keywords

Research priority areas of TU Dresden

Subject groups, research areas, subject areas according to Destatis

Keywords

  • recycling, weft knitting, hybrid yarn, thermoplast, end of Life-CFRP