Chemical recycling of carbon fibre reinforced composites in nearcritical and supercritical water

Raul Piñero-Hernanz; Christopher Dodds; Jason Hyde; Juan García-Serna; Martyn Poliakoff; Edward Lester; María José Cocero; Sam Kingman; Stephen Pickering; Kok Hoong Wong

doi:10.1016/j.compositesa.2008.01.001

Chemical recycling of carbon fibre reinforced composites in nearcritical and supercritical water

Raul Piñero-Hernanz, Christopher Dodds, Jason Hyde, Juan García-Serna, Martyn Poliakoff, Edward Lester, María José Cocero, Sam Kingman, Stephen Pickering, Kok Hoong Wong

Research output: Journal Publication › Article › peer-review

292 Citations (Scopus)

Abstract

The potential for recycling of carbon fibre reinforced epoxy composites in water at supercritical or nearcritical conditions was studied. Experiments were devised in order to identify the significant process parameters that affect fibre reinforced composite recovery potential including temperature, time, oxidant and catalyst concentration. Experiments were performed in a batch-type reactor (10 mL) without stirring, with temperatures ranging from 523 to 673 K, pressures from 4.0 to 27.0 MPa and reaction times from 1 to 30 min. The efficiency of resin removal reached ca. 79.3 wt.% under supercritical water conditions with further improvement through the use of potassium hydroxide as alkali catalyst (up to 95.3 wt.%). The tensile strength of the reclaimed fibres was between 90% and 98% than that of the virgin fibres. A second-order kinetic equation was implemented to model the reactive extraction process.

Original language	English
Pages (from-to)	454-461
Number of pages	8
Journal	Composites - Part A: Applied Science and Manufacturing
Volume	39
Issue number	3
DOIs	https://doi.org/10.1016/j.compositesa.2008.01.001
Publication status	Published - Mar 2008
Externally published	Yes

Keywords

A. Carbon fibre
A. Recycling
A. Thermosetting resin
O. Supercritical water

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.compositesa.2008.01.001

Cite this

Piñero-Hernanz, R., Dodds, C., Hyde, J., García-Serna, J., Poliakoff, M., Lester, E., Cocero, M. J., Kingman, S., Pickering, S., & Wong, K. H. (2008). Chemical recycling of carbon fibre reinforced composites in nearcritical and supercritical water. Composites - Part A: Applied Science and Manufacturing, 39(3), 454-461. https://doi.org/10.1016/j.compositesa.2008.01.001

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title = "Chemical recycling of carbon fibre reinforced composites in nearcritical and supercritical water",

abstract = "The potential for recycling of carbon fibre reinforced epoxy composites in water at supercritical or nearcritical conditions was studied. Experiments were devised in order to identify the significant process parameters that affect fibre reinforced composite recovery potential including temperature, time, oxidant and catalyst concentration. Experiments were performed in a batch-type reactor (10 mL) without stirring, with temperatures ranging from 523 to 673 K, pressures from 4.0 to 27.0 MPa and reaction times from 1 to 30 min. The efficiency of resin removal reached ca. 79.3 wt.% under supercritical water conditions with further improvement through the use of potassium hydroxide as alkali catalyst (up to 95.3 wt.%). The tensile strength of the reclaimed fibres was between 90% and 98% than that of the virgin fibres. A second-order kinetic equation was implemented to model the reactive extraction process.",

keywords = "A. Carbon fibre, A. Recycling, A. Thermosetting resin, O. Supercritical water",

author = "Raul Pi{\~n}ero-Hernanz and Christopher Dodds and Jason Hyde and Juan Garc{\'i}a-Serna and Martyn Poliakoff and Edward Lester and Cocero, {Mar{\'i}a Jos{\'e}} and Sam Kingman and Stephen Pickering and Wong, {Kok Hoong}",

note = "Funding Information: The authors wish to thank to Advanced Composites Group Ltd. for their support in the pre-preg composite material supplied. The financial support of the EU Projects SUPERMAT, INTERREG ATLANTIC III and CTQ 2006-0299/PPQ is gratefully acknowledged, as well as the funding and technical support of both the University of Valladolid (Spain) and the University of Nottingham (UK). ",

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doi = "10.1016/j.compositesa.2008.01.001",

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Piñero-Hernanz, R, Dodds, C, Hyde, J, García-Serna, J, Poliakoff, M, Lester, E, Cocero, MJ, Kingman, S, Pickering, S & Wong, KH 2008, 'Chemical recycling of carbon fibre reinforced composites in nearcritical and supercritical water', Composites - Part A: Applied Science and Manufacturing, vol. 39, no. 3, pp. 454-461. https://doi.org/10.1016/j.compositesa.2008.01.001

TY - JOUR

T1 - Chemical recycling of carbon fibre reinforced composites in nearcritical and supercritical water

AU - Piñero-Hernanz, Raul

AU - Dodds, Christopher

AU - Hyde, Jason

AU - García-Serna, Juan

AU - Poliakoff, Martyn

AU - Lester, Edward

AU - Cocero, María José

AU - Kingman, Sam

AU - Pickering, Stephen

AU - Wong, Kok Hoong

N1 - Funding Information: The authors wish to thank to Advanced Composites Group Ltd. for their support in the pre-preg composite material supplied. The financial support of the EU Projects SUPERMAT, INTERREG ATLANTIC III and CTQ 2006-0299/PPQ is gratefully acknowledged, as well as the funding and technical support of both the University of Valladolid (Spain) and the University of Nottingham (UK).

PY - 2008/3

Y1 - 2008/3

N2 - The potential for recycling of carbon fibre reinforced epoxy composites in water at supercritical or nearcritical conditions was studied. Experiments were devised in order to identify the significant process parameters that affect fibre reinforced composite recovery potential including temperature, time, oxidant and catalyst concentration. Experiments were performed in a batch-type reactor (10 mL) without stirring, with temperatures ranging from 523 to 673 K, pressures from 4.0 to 27.0 MPa and reaction times from 1 to 30 min. The efficiency of resin removal reached ca. 79.3 wt.% under supercritical water conditions with further improvement through the use of potassium hydroxide as alkali catalyst (up to 95.3 wt.%). The tensile strength of the reclaimed fibres was between 90% and 98% than that of the virgin fibres. A second-order kinetic equation was implemented to model the reactive extraction process.

AB - The potential for recycling of carbon fibre reinforced epoxy composites in water at supercritical or nearcritical conditions was studied. Experiments were devised in order to identify the significant process parameters that affect fibre reinforced composite recovery potential including temperature, time, oxidant and catalyst concentration. Experiments were performed in a batch-type reactor (10 mL) without stirring, with temperatures ranging from 523 to 673 K, pressures from 4.0 to 27.0 MPa and reaction times from 1 to 30 min. The efficiency of resin removal reached ca. 79.3 wt.% under supercritical water conditions with further improvement through the use of potassium hydroxide as alkali catalyst (up to 95.3 wt.%). The tensile strength of the reclaimed fibres was between 90% and 98% than that of the virgin fibres. A second-order kinetic equation was implemented to model the reactive extraction process.

KW - A. Carbon fibre

KW - A. Recycling

KW - A. Thermosetting resin

KW - O. Supercritical water

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U2 - 10.1016/j.compositesa.2008.01.001

DO - 10.1016/j.compositesa.2008.01.001

M3 - Article

AN - SCOPUS:40249094388

SN - 1359-835X

VL - 39

SP - 454

EP - 461

JO - Composites - Part A: Applied Science and Manufacturing

JF - Composites - Part A: Applied Science and Manufacturing

IS - 3

ER -

Chemical recycling of carbon fibre reinforced composites in nearcritical and supercritical water

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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