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Desaminated glycolysis of water-blown rigid polyurethane foams

Lee, Joo Yeol ; Kim, Dukjoon

Journal of applied polymer science, 2000-09, Vol.77 (12), p.2646-2656 [Periódico revisado por pares]

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Título:
Desaminated glycolysis of water-blown rigid polyurethane foams
Autor: Lee, Joo Yeol ; Kim, Dukjoon
Assuntos: Applied sciences ; desamination ; Exact sciences and technology ; glycolysis ; Polymer industry, paints, wood ; polyol ; rigid polyurethane foam ; Technology of polymers ; Waste treatment
É parte de: Journal of applied polymer science, 2000-09, Vol.77 (12), p.2646-2656
Notas: istex:216358ECE421B67F25873801DB7491853225D9B1
ark:/67375/WNG-HBHCN39X-R
ArticleID:APP120
Descrição: Glycolysis reaction kinetics of methylene diphenyl diisocyanate‐based water‐blown polyurethane foams was examined by gel permeation chromatography. Glycolysates were reacted with butyl glycidyl ether to convert toxic aromatic amines to polyols, and their products were identified by 1H‐NMR spectroscopy. To examine the quality of recycled polyol, polyurethane foams were reprepared using the virgin and recycled polyol mixtures with varying compositions. Cell structures and sizes of reprepared foams were similar to those of original ones when the recycled polyols were mixed up to 30 wt %. Density, thermal conductivity, and flexural strength of the reprepared foams were compared with those of the original ones, and no difference was observed below the recycled polyol concentration of 30 wt %. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 77: 2646–2656, 2000
Editor: New York: John Wiley & Sons, Inc
Idioma: Inglês

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