Sustainable Alternative Composites Using Waste Vegetable Oil Based Resins

Laminates were produced with epoxy resins from waste vegetable oil (WVO) intended for the manufacturing of environmentally-friendly alternatives for the composites industry. Post-use cooking oil appears a promising source of triglycerides for polymer manufacturing. Matrices cured with methylhexahydr...

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Bibliographic Details
Published in:	Journal of polymers and the environment 2019-11, Vol.27 (11), p.2464-2477
Main Authors:	Fernandes, Felipe C., Kirwan, Kerry, Wilson, Peter R., Coles, Stuart R.
Format:	Article
Language:	eng
Subjects:	ANHYDRIDES BENCHMARKS BIOLOGICAL WASTES Bisphenol A Chemistry Chemistry and Materials Science Cooking Cooking oils Edible oils Environmental Chemistry Environmental Engineering/Biotechnology Epoxy resins ETHERS Fiber composites FIBERGLASS FIBERS Flax GLASS Glass fiber reinforced plastics Glass fibers Industrial Chemistry/Chemical Engineering Industrial wastes Laminates Manufacturing MATERIALS SCIENCE MECHANICAL TESTS OCTADECANOIC ACID Oils & fats Organic chemistry Original Paper Phenols Polymer matrix composites Polymer Sciences Polymers Pretreatment REINFORCED MATERIALS RESINS SCANNING ELECTRON MICROSCOPY Sodium hydroxide SODIUM HYDROXIDES Stearic acid Stiffness Sustainability Thermal stability TRIGLYCERIDES VEGETABLE OILS Vegetables WASTE PROCESSING
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Summary:	Laminates were produced with epoxy resins from waste vegetable oil (WVO) intended for the manufacturing of environmentally-friendly alternatives for the composites industry. Post-use cooking oil appears a promising source of triglycerides for polymer manufacturing. Matrices cured with methylhexahydrophthalic anhydride (MHHPA) were reinforced with glass and flax fibres, creating a library of composites that were compared to analogues from virgin oil and benchmarked against commercial diglycidyl ether of bisphenol A (DGEBA). Glass fibre-reinforced composites presented Young’s moduli similar to the benchmark but reduced tensile strength. Chemical pre-treatment of the flax fibre (NaOH and stearic acid) countered the limited tensile performance observed for materials with untreated flax; improvements were evidenced by DMA and SEM. Moreover, WVO-based resins greatly improved impact properties and reduced density with no effect on thermal stability. Therefore, WVO-based composites appear as more sustainable alternatives in applications demanding toughness, stiffness and lightweight over strength.
ISSN:	1566-2543 1572-8919