Synthesis of Rigid Polyurethane Foams from Recycled Poly(ethylene Terephthalate) Waste
Source abstract
Abstract
Glycolysis of poly(ethylene terephthalate), PET, waste using trimethylol propane (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 °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.
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Research context
OpenAlex topics: Polymer composites and self-healing · Carbon dioxide utilization in catalysis · biodegradable polymer synthesis and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Egyptian Petroleum Research Institute, Ahmed El-Zomor St., Nasr City, Cairo, Egypt
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