|
|||||
|
|
Effect of particulate reinforcement on creep behavior of polyurethane foams |
|
| Authors: | D. Alperstein M. Narkis S. Kenig A. Siegmann |
| Affiliation: | 1. Department of Chemical Engineering, Technion City, Haifa 32000, Israel Department of Materials Engineering, Technion City, Haifa 32000, Israel;2. Department of Materials Engineering, Technion City, Haifa 32000, Israel |
| Abstract: | The compressive creep behavior of rigid unreinforced and particulate reinforced polyurethane foams at different densities, filler contents, temperatures, and loads was investigated. The creep behavior could be described by a power function of time and its temperature dependence by an Arrhenius type relation. The addition of particulate rigid fillers enhances the creep resistance as well as the foam elastic modulus. Particulate reinforcement of polyurethane foams was found to be efficient for the higher foam densities, especially for higher filler levels. |
| Keywords: | |