膜科学与技术

Pebax1657/聚糠醇基炭球混合基质膜的制备及性能研究

作者：蔡钦兴，丁晓莉，赵红永，张玉忠

单位：天津工业大学，省部共建分离膜与膜过程国家重点实验室，天津 300387

关键词：气体分离膜；混合基质膜；炭球；CO2分离

出版年,卷(期):页码： 2022,42(5):42-47

摘要：

以糠醇为单体，聚醚（F127）为表面活性剂，通过乳液聚合法合成了聚糠醇微球，并以其为前驱体，通过程序控温炭化制备了聚糠醇基炭球。将聚糠醇基炭球作为填料加入到Pebax1657中制备了Pebax1657/聚糠醇基炭球混合基质膜，研究了聚糠醇基炭球的含量对膜性能的影响。结果表明，混合基质膜随着聚糠醇基炭球含量的增加，膜的渗透性能逐渐增大，选择性略有下降。在0.2 MPa，35 ℃的条件下，聚糠醇基炭球的含量为50 wt.%时，CO2渗透系数高达423 Barrer，CO2/N2的分离系数为43.6，CO2/CH4的分离系数为13.2。

Using furfuryl alcohol as the monomer and polyether (F127) as the surfactant, the poly(furfuryl alcohol) microspheres were synthesized by emulsion polymerization. Then the poly(furfuryl alcohol) microspheres were used as precursors to prepare carbon microspheres by programmable temperature-controlled carbonization. The poly(furfuryl alcohol) based carbon microspheres were added into Pebax1657 as the fillers to prepare the Pebax1657/carbon microspheres mixed matrix membranes. The effects of loading amount of carbon microspheres on the performance of membranes were investigated. The results showed that the permeability of the membranes increased gradually as the loading of poly(furfuryl alcohol) based carbon microspheres increased while the selectivity decreased slightly. The optimal mixed matrix membranes with 50 wt.% loading of fillers showed the CO2 permeability coefficient of 423 Barrer, the CO2/N2 selectivity of 43.6, and the CO2/CH4 selectivity of 13.2 at 0.2 MPa and 35 ℃.

蔡钦兴（1997-），男，山东泰安人，硕士，主要从事气体分离膜研究。E-mail：2456899952@qq.com

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