Scanning electron microscopic study of hazardous waste flakes of polyethylene terephthalate (PET) by aminolysis and ammonolysis.
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.
Mittal
Alok
A
Department of Chemistry, Maulana Azad National Institute of Technology (A Deemed University), Bhopal 462051, India. aljymittal@yahoo.co.in
Soni
R K
RK
Dutt
Krishna
K
Singh
Swati
S
D000588:Amines / Q000737:chemistry*; D002384:Catalysis; D003247:Conservation of Natural Resources; D006256:Hazardous Waste; D007220:Industrial Waste; D008855:Microscopy, Electron, Scanning; D011093:Polyethylene Terephthalates / Q000737:chemistry*; D000644:Quaternary Ammonium Compounds / Q000737:chemistry*
D000588:Amines; D006256:Hazardous Waste; D007220:Industrial Waste; D011093:Polyethylene Terephthalates; D000644:Quaternary Ammonium Compounds