zabihi-sustainableapproach-2020.pdf (2.79 MB)
A sustainable approach to the low-cost recycling of waste glass fibres composites towards circular economy
journal contribution
posted on 2020-01-15, 00:00 authored by Omid ZabihiOmid Zabihi, Mojtaba Ahmadi, Chao LiuChao Liu, Roya Mahmoodi, Sulley LiSulley Li, M R Ghandehari Ferdowsi, Minoo NaebeMinoo NaebeFor practical applications, both environmental and economic aspects are highly required to consider in the development of recycling of fibre reinforced polymers (FRPs) encountering their end-of-life. Here, a sustainable, low cost, and efficient approach for the recycling of the glass fibre (GF) from GF reinforced epoxy polymer (GFRP) waste is introduced, based on a microwave-assisted chemical oxidation method. It was found that in a one-step process using microwave irradiation, a mixture of hydrogen peroxide (H2O2) as a green oxidiser and tartaric acid (TA) as a natural organic acid could be used to decompose the epoxy matrix of a waste GFRP up to 90% yield. The recycled GFs with ~92.7% tensile strength, ~99.0% Young's modulus, and ~96.2% strain-to-failure retentions were obtained when compared to virgin GFs (VGFs). This short microwave irradiation time using these green and sustainable recycling solvents makes this a significantly low energy consumption approach for the recycling of end-of-life GFRPs.
History
Journal
SustainabilityVolume
12Issue
2Pagination
1 - 10Publisher
MDPILocation
Basel, SwitzerlandPublisher DOI
Link to full text
eISSN
2071-1050Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2020, the authorsUsage metrics
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Keywords
glass fibre compositesrecyclingcircular economysustainabilitymicrowave irradiationScience & TechnologyLife Sciences & BiomedicineGreen & Sustainable Science & TechnologyEnvironmental SciencesEnvironmental StudiesScience & Technology - Other TopicsEnvironmental Sciences & EcologyIN-USE STOCKSCARBON-FIBERREINFORCED POLYMERSRESIN COMPOSITESCATALYTIC DEGRADATIONEPOXYTHERMOSETDECOMPOSITIONRECLAMATIONPYROLYSISComposite and Hybrid Materials
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