Effect of solid phase corrugation on the thermo-mechanical properties of low density flexible cellular polymers

Abstract

This manuscript presents the effect of the solid phase corrugation of low densityflexible cellular polymers onboth their mechanical and thermal properties. First, a detailed quantification of solid phase corrugation hasbeen carried out by means of high resolution synchrotron micro-tomography in a collection of polyethylenefoams. Subsequently, the collapse stress in compression has been analysed both from the theoretical and exper-imental points of view achieving a clear relation between the solid phase corrugation and the ratio of theoreti-cally calculated and experimentally measured collapse stress. Finally, solid phase corrugation has beencorrelated with the thermal expansion coefficient at room temperature.