Towards Environmentally Friendly Removal of Acrylate-Based Impregnation from Commercial Carbon Fiber Roving

Abstract

Carbon fibers face a growing use in industry due to their exceptional mechanical and light-weight properties. Particularly they are used as carbon fiber reinforced polymer (CFRP) in lightweight mobility, wind turbines and as concrete reinforcements to create light-weight and durable structural components. To fully enable their environmentally friendly use, full life cycles and end-of-life scenarios have to be developed. Therefore, energyand cost-effective carbon fiber retrieval from polymer impregnated commercial samples needs to be investigated. In this study, we investigate a commercially available CFRP roving with an industrial acrylate-based impregnation, commonly used in construction as concrete reinforcements. The impact of several chemical solvents was assessed identifying acetic acid as a highly effective and environmentally friendly agent. To further reduce the concentration of acetic acid, electrochemical dissolution was tested where the carbon fiber was used as a working electrode in an electrochemical cell. Applying a voltage as low as 1.5 V vs. Ag|AgCl, the acetic acid concentration required to dissolve the polymer could be reduced by 33% compared to pure chemical treatment, while the tensile strength of the carbon fiber was maintained.

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BibTeX RIS

BibTeX

@misc{roher2026towards,
  title = {{Towards Environmentally Friendly Removal of Acrylate-Based Impregnation from Commercial Carbon Fiber Roving}},
  author = {Stefan Röher and Julius Scheel and Alexandra Apel and Stella Welzel and Lissy Flechsig and Christina Scheffler and Marco Liebscher and Inez M. Weidinger},
  howpublished = {ChemRxiv},
  year = {2026},
  month = oct,
  doi = {10.26434/chemrxiv.15009780/v1},
  url = {https://chemrxiv.org/doi/full/10.26434/chemrxiv.15009780/v1},
  note = {CC BY},
}

RIS

TY  - UNPB
TI  - Towards Environmentally Friendly Removal of Acrylate-Based Impregnation from Commercial Carbon Fiber Roving
AU  - Stefan Röher
AU  - Julius Scheel
AU  - Alexandra Apel
AU  - Stella Welzel
AU  - Lissy Flechsig
AU  - Christina Scheffler
AU  - Marco Liebscher
AU  - Inez M. Weidinger
PY  - 2026
DA  - 2026/10/02
PB  - ChemRxiv
DO  - 10.26434/chemrxiv.15009780/v1
UR  - https://chemrxiv.org/doi/full/10.26434/chemrxiv.15009780/v1
AB  - Carbon fibers face a growing use in industry due to their exceptional mechanical and light-weight properties. Particularly they are used as carbon fiber reinforced polymer (CFRP) in lightweight mobility, wind turbines and as concrete reinforcements to create light-weight and durable structural components. To fully enable their environmentally friendly use, full life cycles and end-of-life scenarios have to be developed. Therefore, energyand cost-effective carbon fiber retrieval from polymer impregnated commercial samples needs to be investigated. In this study, we investigate a commercially available CFRP roving with an industrial acrylate-based impregnation, commonly used in construction as concrete reinforcements. The impact of several chemical solvents was assessed identifying acetic acid as a highly effective and environmentally friendly agent. To further reduce the concentration of acetic acid, electrochemical dissolution was tested where the carbon fiber was used as a working electrode in an electrochemical cell. Applying a voltage as low as 1.5 V vs. Ag|AgCl, the acetic acid concentration required to dissolve the polymer could be reduced by 33% compared to pure chemical treatment, while the tensile strength of the carbon fiber was maintained.
ER  -

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