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首页> 外文期刊>Journal of Applied Polymer Science >ZIF-11/Polybenzimidazole Composite Membrane with Improved Hydrogen Separation Performance
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ZIF-11/Polybenzimidazole Composite Membrane with Improved Hydrogen Separation Performance

机译：具有改善的氢分离性能的ZIF-11 /聚苯并咪唑复合膜

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摘要

Zeolitic imidazolate framework (ZIF)-11 crystals were prepared by the toluene-assisted method, and they were incorporated into polysulfone, polyethersulfone, and polybenzimidazole (PBI) matrix to investigate the compatibility. ZIF-11 had a good connection with PBI matrix as they had the same benzimidazole groups. The evaporation temperature of the membrane formation was studied with two different solvents: N-methyl-2-pyrrolidone (NMP) and N,N-dimethylacetamide (DMAc). Then, the ZIF-11/PBI composite membranes prepared using NMP or DMAc as the solvent were characterized and tested by gas separation. Improved H_2 and CO_2 permeabilities with a H_2/CO_2 ideal selectivity of 5.6 were obtained on the 16.1 wt % ZIF-11/PBI composite membrane prepared with DMAc as the solvent.
机译：通过甲苯辅助法制备了沸石咪唑酸酯骨架（ZIF）-11晶体，并将其掺入聚砜，聚醚砜和聚苯并咪唑（PBI）基质中以研究其相容性。 ZIF-11与PBI基质具有良好的联系，因为它们具有相同的苯并咪唑基团。用两种不同的溶剂研究了膜形成的蒸发温度：N-甲基-2-吡咯烷酮（NMP）和N，N-二甲基乙酰胺（DMAc）。然后，表征并使用NMP或DMAc作为溶剂制备的ZIF-11 / PBI复合膜，并通过气体分离进行测试。在以DMAc为溶剂制备的16.1重量％的ZIF-11 / PBI复合膜上，获得了具有5.6的H_2 / CO_2理想选择性的改善的H_2和CO_2渗透性。

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