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

Ulf Nagel, James Thomason

Research output: Contribution to conferencePaper

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.
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

Fingerprint

Glass fibers
Recycling
Polypropylenes
Fibers
Composite materials
Costs
Maleic Anhydrides
Maleic anhydride
Shear strength
Reinforcement
Adhesion
fiberglass
Temperature
gamma-aminopropyltriethoxysilane

Keywords

  • recycling
  • glass fibres
  • polypropylene
  • strength recovery

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.
Nagel, Ulf ; Thomason, James. / 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.8 p.
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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, 19/07/15 - 24/07/15, .

Regeneration of thermally recycled glass fibre for cost effective composite recycling : the effect of fibre regeneration and matrix modification. / Nagel, Ulf; Thomason, James.

2015. Paper presented at 20th International Conference on Composite Materials, Copenhagen, Denmark.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Regeneration of thermally recycled glass fibre for cost effective composite recycling

T2 - the effect of fibre regeneration and matrix modification

AU - Nagel, Ulf

AU - Thomason, James

PY - 2015/7/19

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N2 - 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.

AB - 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.

KW - recycling

KW - glass fibres

KW - polypropylene

KW - strength recovery

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