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Impact of Natural Oil-Based Recycled Polyols on Properties of Cast Polyurethanes
2018
Journal of Renewable Materials
In this study, castor oil, rapeseed oil and medium chain triglycerides of coconut oil, were transesterified by means of 2-ethyl-2-hydroxymethyl-1,3-propanediol (trimethylolpropane) and consequently used to convert polycarbonate waste from end-of-life vehicles into liquid polyols. The prepared recycled polyols, composed uniquely of renewable and recycled components, had a hydroxyl number of ca. 250 mg KOH• g −1 . They were successfully applied as 100% replacement of a virgin polyol for
doi:10.32604/jrm.2018.00011
fatcat:jbl7ylpzu5brxg23z5mabo5xtu