화학공학소재연구정보센터
Journal of Membrane Science, Vol.325, No.1, 28-39, 2008
Mixed-matrix membranes composed of Matrimid (R) and mesoporous ZSM-5 nanoparticles
Mixed-matrix membranes were prepared from Matrimid (R) and mesoporous ZSM-5 nanoparticles containing crystalline ZSM-5. The ideal selectivity for H-2/N-2 separation increased from 79.6 for pure Matrimid (R) to 143 at 10% loading, while the selectivity of O-2/N-2 increased from 6.6 for pure Matrimid (R) to 10.4 at 20% loading. The ideal H-2/CH4 separation factor increased from 83.3 to 169 at 20% loading. The results suggest that the mesopores of the ZSM-5 material provide good contact between the nanoparticles and the polymer, since the polymer chains can penetrate into the mesopores. The micropores of ZSM-5 crystals provide size and shape selectivity. (c) 2008 Published by Elsevier B.V.