Production and mechanical characterization of a reinforced polyurethane compound from castor oil and polymeric MDI using the poltrusion forming method
DOI:
https://doi.org/10.17533/udea.redin.343418Keywords:
poltrusion, polyurethane, castor oil, composite, glass fiberAbstract
Polyurethane is a compound that is produced by the reaction of a diisocyanate and a polyol. Taking advantage of the high reactivity of polymeric diphenyl-methanediisociante (MDI) urethanic groups are formed with the ricinoleic acid provided by castor oil, obtaining a polyurethane with a shore D 45 hardness. This polymer forms a reinforced compound with the type E glass fiber using the poltrusion forming method. Poltrusion is a continuous forming process that is employed in the industrial scale production of polyester resins and releases high emissions of organic volatile compounds (VOC) to the environment. In this work we propose a more efficient alternative with a renewable raw material like castor oil, minimizing VOC emissions to the environment; the interaction between polyurethane and glass fiber in the production of a composite material with a high chemical resistance and excellent mechanical properties, associated with the synergy between glass fiber and polyurethane, is also studied.
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