A review on the recycling of waste carbon fibre/glass fibre-reinforced composites: fibre recovery, properties and life-cycle analysis

Sankar Karuppannan Gopalraj (Corresponding Author), Timo Kärki

Research output: Contribution to journalReview ArticleScientificpeer-review

85 Citations (Scopus)

Abstract

The growing use of carbon and glass fibres has increased awareness about their waste disposal methods. Tonnes of composite waste containing valuable carbon fibres and glass fibres have been cumulating every year from various applications. These composite wastes must be cost-effectively recycled without causing negative environmental impact. This review article presents an overview of the existing methods to recycle the cumulating composite wastes containing carbon fibre and glass fibre, with emphasis on fibre recovery and understanding their retained properties. Carbon and glass fibres are assessed via focused topics, each related to a specific treatment method: mechanical recycling; thermal recycling, including fluidised bed and pyrolysis; chemical recycling and solvolysis using critical conditions. Additionally, a brief analysis of their environmental and economic aspects are discussed, prioritising the methods based on sustainable values. Finally, research gaps are identified to highlight the factors of circular economy and its significant role in closing the life-cycle loop of these valuable fibres into re-manufactured composites.
Original languageEnglish
Article number433
Pages (from-to)1-21
Number of pages21
JournalSN Applied Sciences
Volume2
Issue number3
DOIs
Publication statusPublished - Mar 2020
MoE publication typeA2 Review article in a scientific journal

Keywords

  • Carbon fibre
  • Circular economy
  • End-of-life
  • Glass fibre
  • Life-cycle loop
  • Recycling technologies

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