Characterization of rigid polyurethane foam waste as a tool to evaluate its use
DOI:
https://doi.org/10.14482/inde.43.02.245.125Keywords:
Characterization techniques, industrial waste, rigid polyurethane foam waste, waste reuseAbstract
This work presents the physical, chemical, structural and environmental characterization of rigid polyurethane foam (PUR) waste, from different industries in the region. Four samples were selected for the study, which includes density, water absorption, and chemical composition through elemental analysis and X-ray spectroscopy (EDX). In addition, its structural composition was analyzed through the techniques of Fourier Transform Infrared spectroscopy (FTIR), Differential Thermogravimetry Analysis (DTG), Confocal microscopy and Scanning Electron Microscopy (SEM). Environmental tests such as Toxicity characteristic leaching procedure (TCLP) and acute toxicity in Daphnia Pulex were also applied. The results showed the presence of the usual functional groups in the composition of a rigid polyurethane foam; however Cl, Ti and benzene rings was found, which correspond to the presence of additives. Furthermore, through the applied environmental tests, non-toxicity was found in the samples. Subsequent studies of gas emissions from these wastes are recommended when they are subjected to thermal processes.
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