Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 178, Issue 1-3, Pages 390-396Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2010.01.092
Keywords
Polyesters; Recycling; Degradation; Ammonolysis; Aminolysis; SEM
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Polyethylene terephthalate (PET) waste flakes were degraded with aqueous methylamine and aqueous ammonia, respectively at room temperature in the presence and absence of quaternary ammonium salt as a catalyst for different periods of time. The aminolysed and ammonolysed PET samples were investigated for the surface morphology with the help of scanning electron micrograph (SEM). It shows that the semi-crystalline PET waste samples reduce to monodisperse rods before fully degradation to the end products. The presence of the catalyst provides site for degradation of PET waste and enhances the rate of degradation. The SEM shows early developments of fissures in comparison to the one in absence of quaternary ammonium salt used as catalyst. (C) 2010 Elsevier B.V. All rights reserved.
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