Structural and mechanical properties of flexible polyurethane foams cured under pressure

  title={Structural and mechanical properties of flexible polyurethane foams cured under pressure},
  author={Markus Rampf and Olga Speck and Thomas Speck and Rolf H. Luchsinger},
  journal={Journal of Cellular Plastics},
  pages={53 - 69}
Flexible two-component polyurethane foam was synthesized under various extents of overpressure up to 2 bar. The influence of the pressure conditions on shrinkage and basic foam properties such as the relative density, microstructure, and ratio of open to closed pores as well as the elastic mechanical properties were investigated. The relationship between the relative foam density and the applied overpressure is shown to be rather linear. An abrupt change of the mainly open pore structure to… 

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