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Some physical and mechanical properties of recycled polyurethane foam blends

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Mechanics of Composite Materials Aims and scope

Blends of secondary rigid polyurethane foams (RPUFs) with soft polyurethane foams (SPUFs) were investigated. The effect of SPUF content and its chemical nature on some physical and mechanical properties of the blends was evaluated. Owing to the stronger intermolecular interaction and higher values of cohesion energy, the blends of RPUFs with polyester SPUFs showed higher mechanical properties than those with polyether SPUFs. The density, hardness, ultimate strength, and the tensile, shear, and flexural moduli increased, while the impact toughness, ultimate elongation, and damping characteristics decreased with increasing RPUF content in the blends.

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Translated from Mekhanika Kompozitnykh Materialov, Vol. 44, No. 5, pp. 737–746, September–October, 2008.

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Bledzki, A.K., Zicans, J., Merijs Meri, R. et al. Some physical and mechanical properties of recycled polyurethane foam blends. Mech Compos Mater 44, 515–522 (2008).

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