乙二醇
聚氨酯
试剂
化学
糖酵解
多元醇
催化作用
二甘醇
三乙醇胺
废物管理
材料科学
化学工程
有机化学
分析化学(期刊)
工程类
酶
作者
Ping Zhu,Zhengjun Cao,Y. Chen,X.J. Zhang,Guangren Qian,Yuliang Chu,Ming Zhou
标识
DOI:10.1080/09593330.2014.918180
摘要
Rapid growth of rigid waste polyurethane (WPUR) foam from refrigerators attracts the attention all over the world. In this study, glycolysis was chosen to treat WPUR from scrapped refrigerators collected in Shanghai, China. Glycolysis reagents and catalysts were selected. The results indicated that the glycolysis efficiency of ethylene glycol (EG) was higher than that of diethylene glycol, and the catalytic efficiency of alkali metal salts (NaOH) was more excellent than that of triethanolamine and organic salts of alkali metal (NaAc). When EG was 100%WPUR as a glycolysis reagent and NaOH was 1%WPUR as a catalyst at a constant temperature of 197.85°C for 2 h, the glycolysis product had the highest glycolysis conversion rate. In order to maximize the recycling of WPUR, regenerative Polyurethane was performed by adding 10% distilled mixed polyol, which conformed to the QB/T 26689-2011 requirements.
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