Supercritical propanol, a possible route to composite carbon fibre recovery: A viability study

Jason R. Hyde; Edward Lester; Sam Kingman; Stephen Pickering; Kok Hoong Wong

doi:10.1016/j.compositesa.2005.12.006

Supercritical propanol, a possible route to composite carbon fibre recovery: A viability study

Jason R. Hyde, Edward Lester, Sam Kingman, Stephen Pickering, Kok Hoong Wong

Research output: Journal Publication › Article › peer-review

118 Citations (Scopus)

Abstract

Supercritical propanol has been used to extract and remove the epoxy resin from the surface of a carbon fibre composite material. The process appeared to be effective when operating above 450 °C and above 50 bar. The recovered fibres were found to be virtually as strong, in terms of tensile strength, as the virgin fibres indicating that little had been done to damage their structural integrity. One advantage of this method is that the polymer, as well as the fibre material, can be recovered. The polymer was analysed to investigate what chemical transformations had occurred during treatment. It is seems likely that the amide cross-linker is broken in the polymer to release a residue with a relatively high molecular weight.

Original language	English
Pages (from-to)	2171-2175
Number of pages	5
Journal	Composites - Part A: Applied Science and Manufacturing
Volume	37
Issue number	11
DOIs	https://doi.org/10.1016/j.compositesa.2005.12.006
Publication status	Published - Nov 2006
Externally published	Yes

Keywords

A. Carbon fibre
A. Surfaces
B. Strength

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials

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10.1016/j.compositesa.2005.12.006

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title = "Supercritical propanol, a possible route to composite carbon fibre recovery: A viability study",

abstract = "Supercritical propanol has been used to extract and remove the epoxy resin from the surface of a carbon fibre composite material. The process appeared to be effective when operating above 450 °C and above 50 bar. The recovered fibres were found to be virtually as strong, in terms of tensile strength, as the virgin fibres indicating that little had been done to damage their structural integrity. One advantage of this method is that the polymer, as well as the fibre material, can be recovered. The polymer was analysed to investigate what chemical transformations had occurred during treatment. It is seems likely that the amide cross-linker is broken in the polymer to release a residue with a relatively high molecular weight.",

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T1 - Supercritical propanol, a possible route to composite carbon fibre recovery

T2 - A viability study

AU - Hyde, Jason R.

AU - Lester, Edward

AU - Kingman, Sam

AU - Pickering, Stephen

AU - Wong, Kok Hoong

PY - 2006/11

Y1 - 2006/11

N2 - Supercritical propanol has been used to extract and remove the epoxy resin from the surface of a carbon fibre composite material. The process appeared to be effective when operating above 450 °C and above 50 bar. The recovered fibres were found to be virtually as strong, in terms of tensile strength, as the virgin fibres indicating that little had been done to damage their structural integrity. One advantage of this method is that the polymer, as well as the fibre material, can be recovered. The polymer was analysed to investigate what chemical transformations had occurred during treatment. It is seems likely that the amide cross-linker is broken in the polymer to release a residue with a relatively high molecular weight.

AB - Supercritical propanol has been used to extract and remove the epoxy resin from the surface of a carbon fibre composite material. The process appeared to be effective when operating above 450 °C and above 50 bar. The recovered fibres were found to be virtually as strong, in terms of tensile strength, as the virgin fibres indicating that little had been done to damage their structural integrity. One advantage of this method is that the polymer, as well as the fibre material, can be recovered. The polymer was analysed to investigate what chemical transformations had occurred during treatment. It is seems likely that the amide cross-linker is broken in the polymer to release a residue with a relatively high molecular weight.

KW - A. Carbon fibre

KW - A. Surfaces

KW - B. Strength

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M3 - Article

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SN - 1359-835X

VL - 37

SP - 2171

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JO - Composites - Part A: Applied Science and Manufacturing

JF - Composites - Part A: Applied Science and Manufacturing

IS - 11

ER -

Supercritical propanol, a possible route to composite carbon fibre recovery: A viability study

Abstract

Keywords

ASJC Scopus subject areas

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