Static and dynamic behavior of PU foams with multilayer coatings

An overview on static and dynamic behavior of functional polymeric foams is presented. In particular, a PU (Poly Urethane) open cells foam was manufactured to obtain specimens with different nanostructured coatings. cells foam was manufactured to obtain specimens with different nanostructured coatings. An experimental campaign was performed with 7 different kind of multilayer coatings. Quasi-static compression preconditioning and compression fatigue cycles were applied and 5 parameters were measured during cycling: Hysteresis loop area, Dissipated energy per cycle, Stiffness degradation, Secant modulus, Loss factor values. The results show the effect of the contribution of nanoink layers to the static and cyclic behavior of foams.