Characterisation of recycled carbon fibre: Mechanical properties and surface chemistry

K. H. Wong, G. Jiang, S. J. Pickering, C. D. Rudd, G. S. Walker

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

6 Citations (Scopus)

Abstract

High strength carbon fibres were recycled from epoxy composite scrap using a fluidised bed process. The potential for reusing the fibre was investigated by assessing its quality in terms of mechanical properties and surface chemistry. Single fibre tensile tests, scanning electron microscopy for surface visualisation, X-ray photoelectron spectroscopy for characterisation of the surface chemistry and interfacial shear stress measurements were performed. The two types of recycled fibre considered showed a reduction in tensile strength 35% and 51% but no degradation in stiffness was found. The presence of hydroxyl, carboxyl and carbonyl functional groups was found on the surface of the recycled fibre and although a lower O/C ratio was lower, the surface chemistry was not unlike that of virgin fibre. Prepreg scrap was also heat-treated at the same temperature as the fluidised bed process in an ashing furnace to study the reduction in tensile properties.

Original languageEnglish
Title of host publication38th SAMPE Fall Technical Conference
Subtitle of host publicationGlobal Advances in Materials and Process Engineering
Publication statusPublished - 2006
Externally publishedYes
Event38th SAMPE Fall Technical Conference: Global Advances in Materials and Process Engineering - Dallas, TX, United States
Duration: 6 Nov 20069 Nov 2006

Publication series

NameInternational SAMPE Technical Conference

Conference

Conference38th SAMPE Fall Technical Conference: Global Advances in Materials and Process Engineering
Country/TerritoryUnited States
CityDallas, TX
Period6/11/069/11/06

Keywords

  • Carbon fibre composites
  • Characterisation
  • Recycling

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

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