INFLUENCE OF THE SPEED OF LOADING ON THE RESPONSE OF A RIGID POLYURETHANE FOAM IN COMPRESSION TESTING

摘要

Polyurethane foam with density 200 kg/m~3 was tested in compression after impregnating the outer surface with epoxy resin, polyester resin, and exposing it at room temperature to air and light. Secondly, the influence of speed of loading from 2 mm/min up to 1000 mm/min on the crush response of the rigid foam is analyzed. The presence of the resins improves the compression properties, especially the epoxy one. The influence of long time exposure to air and light is evident by damaging the polyurethane foam. The simple polyurethane foam behaves better in compression on the rise direction than on the transversal one.