Sorbitol/glycerin/water ternary system as a novel glycolysis agent for flexible polyurethane foam in the chemical recycling using microvawe radiation

M. M. A. Nikje; F. H. A. Mohammadi

Published : 2022-08-18

Vol. 54 No. 7-8 (2009)

Sorbitol/glycerin/water ternary system as a novel glycolysis agent for flexible polyurethane foam in the chemical recycling using microvawe radiation

M. M. A. Nikje F. H. A. Mohammadi

Abstract

An eco-friendly and convenient method was performed for recycling of flexible polyurethane foams. Glycerin/sorbitol/water mixture was used as destroying solvent and sodium hydroxide as a catalyst. In all reactions phase separation appeared after complete foam digestion. The upper phase contained recycled polyol and lower phase was a brown liquid that applied in rigid polyurethane foam formulations. The mechanical properties of formulated foams were compared with virgin polyol formulated sample. Reactions were studied using various glycerin/sorbitol/water ratios and the recovered polyols were characterized by spectroscopic methods and data compared with a virgin sample.

Keywords

pianki poliuretanowe ; hydroglikoliza ; sorbitol ; mikrofale ; odzyskiwany poliol PUR foams ; hydroglycolysis ; sorbitol ; microwave ; polyol recovery

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Nikje, M. M. A., & Mohammadi, F. H. A. (2022). Sorbitol/glycerin/water ternary system as a novel glycolysis agent for flexible polyurethane foam in the chemical recycling using microvawe radiation. Polimery, 54(7-8), 541-545. Retrieved from https://ichp.vot.pl/index.php/p/article/view/1230

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