Abstract Mixed Matrix type membranes (MMMs) containing 10 wt% of either silicalite, SAPO – 34, and ZIF – 8 in polyimide Matrimid were fabricated and tested for their suitability to separate a number of gas mixtures by conducting single gas permeation experiments using H 2 , CO 2 , N 2 , and CH 4 gases. The transport of these gases through the polymeric and inorganic membrane phases, as well as their interfacial voids, have additionally been distinguished from each other by fabricating MMMs containing non-calcined fillers of silicalite and SAPO-34. The ideal selectivities that have been calculated using the experimentally determined permeabilities can be attributed to the relative pore size and volume of the fillers in each membrane, as well as changes to the mobility of polymer chains in the vicinity of fillers. Due to its large pore volume as well as simultaneous reductions of interfacial voids and polymer chain mobility, ideal selectivities and gas permeabilities that are higher than those achieved by a neat Matrimid membrane have been achieved using ZIF – 8 containing MMMs. For the ZIF – 8 containing membranes, the largest permeabilities for H 2 , CO 2 , N 2 , and CH 4 were found to be 51.1, 15.5, 0.64, and 0.54 barrer, respectively. This H 2 permeability in particular was found to be the most outstanding out of all of the membranes that have been tested, and ideal selectivities for the separation of H 2 /N 2 , and H 2 /CH 4 , were found to be 80.3 and 102, respectively. The performance of the membranes that were fabricated using uncalcined silicalite and SAPO-34 also suggest that the structure of the Matrimid phase is altered by the addition of these fillers as greater selectivities at the expense of permeability were also achieved using these MMMs in comparison to a neat Matrimid membrane.

中文翻译：

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由聚酰亚胺基质酰亚胺与 ZIF – 8、硅石和 SAPO – 34 组成的混合基质膜的研究和比较

摘要 混合基质型膜 (MMM) 在聚酰亚胺基质中含有 10 wt% 的硅沸石、SAPO – 34 和 ZIF – 8，并通过使用 H 2 进行单一气体渗透实验来测试它们分离多种气体混合物的适用性。 、CO 2 、N 2 和CH 4 气体。通过制造含有非煅烧硅沸石和 SAPO-34 填料的 MMM，这些气体通过聚合物膜和无机膜相的传输以及它们的界面空隙已经相互区分。使用实验确定的渗透率计算的理想选择性可归因于每个膜中填料的相对孔径和体积，以及填料附近聚合物链迁移率的变化。由于其大孔体积以及界面空隙和聚合物链迁移率的同时减少，使用含有 ZIF-8 的 MMM 实现了比纯 Matrimid 膜更高的理想选择性和气体渗透率。对于含有 ZIF-8 的膜，发现 H 2 、CO 2 、N 2 和 CH 4 的最大渗透率分别为 51.1、15.5、0.64 和 0.54 barrer。发现该 H 2 渗透性尤其是所有已测试膜中最出色的，并且发现分离 H 2 /N 2 和 H 2 /CH 4 的理想选择性为 80.3 和分别为 102。