Synthesis of High Durability Polyurethane Based on Basalt Mineral

This research work synthesized an oligomer based on urea, glycerol, and formaldehyde. Based on this obtained oligomer, polyurethane with high strength was obtained. Phthalic anhydride and basalt minerals were used to increase the hardness of the synthesized oligomer. According to the obtained results, the mass ratio of oligomer and phthalic anhydride and basalt minerals was 20:6:9 grams, respectively. The procedure duration was 1 hour, and the temperature was 35 0C. The physicochemical properties of oligomer and polyurethane were studied and analyzed using IR-spectroscopic, Chromato-mass spectra, scanning electron microscope SEM, and Smart EDS. Also, the hardness, elasticity, and plasticity indicators of the obtained composite polyurethane were determined by the Brinell method. In this case, polyurethane showed the highest hardness when the percentage of basalt mineral reached 3%.