Resumen

LOPEZ-RODRIGUEZ, ISABELLA F.; TORRES-AGREDO, JANNETH  y  DIAZ-ROSERO, JHERSON Е.. Characterization of rigid polyuréthanne foam waste as a tool to evaluate its use. Ing. Desarro. [online]. 2025, vol.43, n.2, pp.220-237.  Epub 01-Jul-2025. ISSN 0122-3461.  https://doi.org/10.14482/inde.43.02.245.125.

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 included 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 were 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.

Palabras clave : characterization techniques; industrial waste; rigid polyurethane foam waste; waste reuse.

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