Flexible Polyurethane Foams Modified with New Bio-Polyol Based on Rapeseed Oil

摘要

This article describes the effects of the modification of polyurethane system with rapeseed oil-based polyol on the cell structure and physical-mechanical properties of conventional flexible polyurethane foams. The foams were prepared by substituting a part of the petrochemical polyether-polyols mixture with the bio-polyol based on rapeseed oil. Selected physical-mechanical properties of these foams were examined and compared to the properties of reference foam. The properties such as apparent density, resilience, comfort factor and stress-strain characteristics were analyzed in compression tests. It was found that the modification of polyurethane formulation with rapeseed oil-based polyol improves the selected properties of the final products.