Widiastuti Nurul, Gunawan Triyanda, Fansuri Hamzah, Salleh Wan Norharyati Wan, Ismail Ahmad Fauzi, Sazali Norazlianie
Department of Chemistry, Institut Teknologi Sepuluh Nopember, Faculty of Science and Data Analytics, Sukolilo 60111, Surabaya, Indonesia.
Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai 81310, Johor Bahru, Malaysia.
Membranes (Basel). 2020 Sep 28;10(10):267. doi: 10.3390/membranes10100267.
This research introduces zeolite carbon composite (ZCC) as a new filler on polymeric membranes based on the BTDA-TDI/MDI (P84) co-polyimide for the air separation process. The separation performance was further improved by a polydimethylsiloxane (PDMS) coating to cover up the surface defect. The incorporation of 1 wt% ZCC into P84 co-polyimide matrix enhanced the O permeability from 7.12 to 18.90 Barrer (2.65 times) and the O/N selectivity from 4.11 to 4.92 Barrer (19.71% improvement). The PDMS coating on the membrane further improved the O/N selectivity by up to 60%. The results showed that the incorporation of ZCC and PDMS coating onto the P84 co-polyimide membrane was able to increase the overall air separation performance.
本研究引入沸石碳复合材料（ZCC）作为一种新型填料，用于基于BTDA-TDI/MDI（P84）共聚酰亚胺的聚合物膜空气分离过程。通过聚二甲基硅氧烷（PDMS）涂层覆盖表面缺陷，进一步提高了分离性能。在P84共聚酰亚胺基体中加入1 wt%的ZCC，使氧气渗透率从7.12提高到18.90 Barrer（提高了2.65倍），氧气/氮气选择性从4.11提高到4.92 Barrer（提高了19.71%）。膜上的PDMS涂层进一步将氧气/氮气选择性提高了60%。结果表明，在P84共聚酰亚胺膜上引入ZCC和PDMS涂层能够提高整体空气分离性能。
