Synthesis of rigid polyurethane foams from recycled poly(ethylene terephthalate) waste

被引：7

作者：

Azim, AAAA ^{[1
]}

Atta, AA ^{[1
]}

El-Ghazawy, RA ^{[1
]}

机构：

[1] Egyptian Petr Res Inst, Nasr City, Cairo, Egypt

来源：

CELLULAR POLYMERS | 2006年 / 25卷 / 01期

关键词：

D O I：

10.1177/026248930602500103

中图分类号：

TB3 [工程材料学]; R318.08 [生物材料学];

学科分类号：

0805 ; 080501 ; 080502 ;

摘要：

Glycolysis of poly(ethylene terephthalate), PET, waste using trimethylolpropane (TMP) or pentaerytheritol (PEr) was used to produce suitable hydroxyoligomers for polyurethane foams. The glycolysis was carried out in the presence of manganese acetate as a catalyst, under high and normal pressure atmosphere in xylene and m-cresol at 220 degrees C. The prepared oligomers were reacted with 2,4- 2,6-toluene diisocyanate to produce different types of polyurethane foams. The compressive and flexural strengths, open and closed cell%, oxygen index% and curing times were determined and the results were correlated to the chemical structure of the produced oligomers.

引用

页码：35 / 48

页数：14

共 33 条

[1]

ABDELAZIM AA, 1997, POLYM RECYCLING, V3, P173

[2] Recycled flexible resins in concrete [J].