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RSS FeedsSustainability, Vol. 12, Pages 641: A Sustainable Approach to the Low-Cost Recycling of Waste Glass Fibres Composites towards Circular Economy (Sustainability)

 
 

15 january 2020 20:03:27

 
Sustainability, Vol. 12, Pages 641: A Sustainable Approach to the Low-Cost Recycling of Waste Glass Fibres Composites towards Circular Economy (Sustainability)
 


For 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.


 
83 viewsCategory: Ecology
 
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