Influence of Glycolyzed Polyurethane on Emulsions Containing Vegetable Oils for Metal Cutting Fluid Application: Effect of Hydrophilic Chain

Authors: Bekhit M , Negm NA , El-Sukkary MM , Mohamed MG and Sayed GH

DOI: 10.23880/ppej-16000142

Volume 2, Issue 1

Abstract

In order to produce environmentally friendly and efficient metal working fluids and also to reduce the impact of waste polyurethane polymer in the environment, polyurethane polymers were recycled in novel process. Waste polyurethane foam was glycolyzed using polyethylene glycol 400-600-1500-4000-6000 to give the glycolyzed products (GPU). GPU was esterified by oleic acid to obtain GPUO. The prepared additive was used as emulsifier in the formulation for metal working fluid application in presence of castor oil as environmentally friendly oil. The results showed good stability of the prepared water-vegetable oils emulsions. The pH, specific gravity, kinematic viscosity at 40 oC, 100 oC, surface tension, and anticorrosion tests of the prepared formulation showed acceptable results comparing with the published data for several working fluids formulations.

Keywords: Polyurethane; Glycolysis; Vegetable oils; Working fluids; Anticorrosion

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