Abstract
Glycolysis of waste polyethylene terephthalate (PET) flakes obtained from grinding postconsumer bottles was carried out at 180–190°C, and molar ratios of PET/EG were taken as 1/6. Reaction product was extracted by hot water, and water soluble crystallizable fraction and water insoluble fraction were obtained. These fractions were characterized by hydroxyl value determination. Water soluble crystallizable fraction obtained from glycolysis product was used for synthesis of PET-based epoxy resin. Two epoxy-based paints were prepared using different amounts of PET-based epoxy resin. Wet paint properties, and chemical and physical film properties of paints containing waste PET were determined. Increasing the rate of PET-based epoxy resin in paint formulation did not have a negative effect on the wet paint properties and dry film properties of epoxy-based paints containing waste PET.
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Acknowledgments
This work is a part of the master thesis titled “Production of Epoxy Based Paint from Glycolysis Intermediates of Waste PET,” which is prepared at Istanbul University, Institute of Science. This work is supported by Research Fund of the Istanbul University with Project Number 34135.
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Bal, K., Ünlü, K.C., Acar, I. et al. Epoxy-based paints from glycolysis products of postconsumer PET bottles: synthesis, wet paint properties and film properties. J Coat Technol Res 14, 747–753 (2017). https://doi.org/10.1007/s11998-016-9895-0
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DOI: https://doi.org/10.1007/s11998-016-9895-0