Abstract
Useful coating products may be obtained by chemical valorization (glycolysis) of post consumed poly (ethylene terephthalate) (PET) wastes. Glycolysis of PET waste was carried out using poly (propylene glycol) (PPG) of molecular weight 2000. The depolymerized oligoesters obtained were trans-esterified with Castor oil and Jatropha oil which results in the formation of saturated hydroxyl-functional polyester polyols. Two-pack coating systems were formulated using these resins as base component and melamine formaldehyde resins as hardener component. Cured films were tested for their hardness, chemical and corrosion resistance performances. The glycolysis of PET using PPG and polyester polyol formation was characterized using Fourier transform infrared spectroscopy
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