Regeneration of thermally recycled glass fibre for cost effective composite recycling: the effect of fibre regeneration and matrix modification

Ulf Nagel, James Thomason

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Abstract

The recycling of glass fibre composites has become an important issue because of social-ecological, financial and legislative reasons. One main obstacle for the recycling of glass fibre composites is the low value of the recycled fibres. The present study investigates methods to maximize the reinforcement potential of thermally recycled glass fibres. Glass fibres were exposed to thermal recycling temperatures and processed into injection moulded polypropylene composites. Microbond tests were performed to characterize the adhesion between the fibres and the polypropylene matrix. Similar to other studies, the composite performance dropped when the fibres were exposed to high temperatures. It was found that the regeneration of the interfacial shear strength using maleic anhydride grafted polypropylene improves the composites performance but a post treatment of the fibres with γ-aminopropyltriethoxysilane was more effective. It was concluded that the application of γ-aminopropyltriethoxysilane might have improved the strength of the fibres.
Original languageEnglish
Number of pages8
Publication statusPublished - 19 Jul 2015
Event20th International Conference on Composite Materials - Copenhagen, Denmark
Duration: 19 Jul 201524 Jul 2015

Conference

Conference20th International Conference on Composite Materials
CountryDenmark
CityCopenhagen
Period19/07/1524/07/15

Keywords

  • recycling
  • glass fibres
  • polypropylene
  • strength recovery

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    Research Output

    Regenerating the strength of thermally recycled glass fibres using hot sodium hydroxide

    Thomason, J. L., Nagel, U., Yang, L. & Sáez, E., 1 Aug 2016, In : Composites Part A: Applied Science and Manufacturing. 87, p. 220-227 8 p.

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  • 17 Citations (Scopus)
    113 Downloads (Pure)

    Cite this

    Nagel, U., & Thomason, J. (2015). Regeneration of thermally recycled glass fibre for cost effective composite recycling: the effect of fibre regeneration and matrix modification. Paper presented at 20th International Conference on Composite Materials, Copenhagen, Denmark.