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Influence of density on tensile and compressive properties of polyurethane foam

Polyurethane (PU) foams are widely used in building structures. Due to their good thermal and sound insulation properties, PU foams are often applied in the production of façade systems as a non-structural component. In addition, they are commonly used in structural load-bearing components, e.g. as a core material in composite sandwich panels. In order to be used in load-bearing structures, it is necessary to know their mechanical properties. The main mechanical properties of PU foams are influenced by many parameters such as density, temperature, anisotropy, loading condition, etc. In this paper, the influence of density on tensile and compressive properties of PU foam is presented. Therefore, the uniaxial tension and compression tests according to the International Standards for six different densities were performed. Based on the test results, the influence of density on tensile and compressive strength as well as compressive modulus of elasticity is reported.

polyurethane foam, density, experimental test, tension, compression, compressive modulus of elasticity

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