以聚（对苯二甲酸-共-甘油-接枝-马来酸酐）作为新型致孔剂对聚醚砜超滤膜进行改性
Modification of Polyethersulfone Ultrafiltration Membrane Using Poly(terephthalic acid-co-glycerol-g-maleic anhydride) as Novel Pore Former.
作者信息
Aljanabi Ali A Abbas, Mousa Noor Edin, Aljumaily Mustafa M, Majdi Hasan Sh, Yahya Ali Amer, Al-Baiati Mohammad N, Hashim Noor, Rashid Khaild T, Al-Saadi Saad, Alsalhy Qusay F
机构信息
Al-Mussaib Technical College, Al-Furat Al-Awsat Technical University, Babylon 51009, Iraq.
Membrane Technology Research Unit, Chemical Engineering Department, University of Technology-Iraq, Alsena'a Street No. 52, B. O. 35010, Baghdad 10066, Iraq.
出版信息
Polymers (Basel). 2022 Aug 20;14(16):3408. doi: 10.3390/polym14163408.
In this research, poly terephthalic acid-co-glycerol-g-maleic anhydride (PTGM) graft co-polymer was used as novel water-soluble pore formers for polyethersulfone (PES) membrane modification. The modified PES membranes were characterized to monitor the effect of PTGM content on their pure water flux, hydrophilicity, porosity, morphological structure, composition, and performance. PTGM and PES/PTGM membranes were characterized by field emission scanning electron microscopy (FESEM), Fourier-transform infrared spectroscopy (FTIR), and contact angle (CA). The results revealed that the porosity and hydrophilicity of the fabricated membrane formed using a 5 wt.% PTGM ratio exhibited an enhancement of 20% and 18%, respectively. Similarly, upon raising the PTGM ratio in the casting solution, a more porous with longer finger-like structure was observed. However, at optimum PTGM content (i.e., 5%), apparent enhancements in the water flux, bovine serum albumin (BSA), and sodium alginate (SA) retention were noticed by values of 203 L/m.h (LMH), 94, and 96%, respectively. These results illustrated that the observed separation and permeation trend of the PES/PTGM membrane may be a suitable option for applications of wastewater treatment. The experimental results suggest the promising potential of PTGM as a pore former on the membrane properties and performance.
在本研究中，聚对苯二甲酸-co-甘油-g-马来酸酐（PTGM）接枝共聚物被用作新型水溶性致孔剂，用于聚醚砜（PES）膜的改性。对改性后的PES膜进行表征，以监测PTGM含量对其纯水通量、亲水性、孔隙率、形态结构、组成和性能的影响。通过场发射扫描电子显微镜（FESEM）、傅里叶变换红外光谱（FTIR）和接触角（CA）对PTGM和PES/PTGM膜进行了表征。结果表明，使用5 wt.% PTGM比例制备的膜的孔隙率和亲水性分别提高了20%和18%。同样，随着铸膜液中PTGM比例的提高，观察到膜的孔隙率更高，且具有更长的指状结构。然而，在最佳PTGM含量（即5%）时，水通量、牛血清白蛋白（BSA）和海藻酸钠（SA）截留率分别明显提高，达到203 L/m·h（LMH）、94%和96%。这些结果表明，PES/PTGM膜观察到的分离和渗透趋势可能是废水处理应用的合适选择。实验结果表明，PTGM作为致孔剂对膜的性能具有潜在的应用前景。
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