Preparation and Characterization of Foaming Poly(phenylene ether ketone) PPEK by using Supercritical Carbon Dioxide

摘要

This paper presents foaming behaviors of PPEK blown with supercritical CO_2. The cell density and cell size of PPEK at various process conditions were studied. The experimental results indicate that saturate pressure, foaming temperature and suitable foaming time can provide a positive impact on improving the cell morphology of PPEK foams.