화학공학소재연구정보센터
Polymer Bulletin, Vol.56, No.2-3, 257-265, 2006
Preparation and application of glycolysed polyurethane integral skin foams recyclate from automotive wastes
Glycolysis of isocyanate derived foams with glycol and amine mixture is a simple and economically attractive chemical recycling process. A mixture of diethylene glycol (DEG) and diethanol amine (DEA) is used as solvent system and sodium hydroxide as the catalyst. The obtained polyols can be completely reused in the formulation of integral skin foams in blend with virgin polyol.