In order to clarify the effect of strain rate and test temperature on the compressive strength of polyimide foam, a series of compression tests for the polyimide foam with two different densities were carried out. By using three testing devices, i.e. universal testing machine, dropping weight machine and direct impact apparatus, we performed a series of compression tests at various strain rates (10^<-3>〜10^3 s^<-1>) and at several test temperatures in the range of -190 ℃ to 270 ℃. At over 100 s^<-1>, the remarkable increase of flow stress was observed. The negative temperature dependence of strength was also observed.
