Seah Mei Qun, Lau Woei Jye, Goh Pei Sean, Tseng Hui-Hsin, Wahab Roswanira Abdul, Ismail Ahmad Fauzi
Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia.
Department of Occupational Safety & Health, Chung Shan Medical University, Taichung 40201, Taiwan.
Polymers (Basel). 2020 Nov 27;12(12):2817. doi: 10.3390/polym12122817.
In this paper, we review various novel/modified interfacial polymerization (IP) techniques for the fabrication of polyamide (PA) thin film composite (TFC)/thin film nanocomposite (TFN) membranes in both pressure-driven and osmotically driven separation processes. Although conventional IP technique is the dominant technology for the fabrication of commercial nanofiltration (NF) and reverse osmosis (RO) membranes, it is plagued with issues of low membrane permeability, relatively thick PA layer and susceptibility to fouling, which limit the performance. Over the past decade, we have seen a significant growth in scientific publications related to the novel/modified IP techniques used in fabricating advanced PA-TFC/TFN membranes for various water applications. Novel/modified IP lab-scale studies have consistently, so far, yielded promising results compared to membranes made by conventional IP technique, in terms of better filtration efficiency (increased permeability without compensating solute rejection), improved chemical properties (crosslinking degree), reduced surface roughness and the perfect embedment of nanomaterials within selective layers. Furthermore, several new IP techniques can precisely control the thickness of the PA layer at sub-10 nm and significantly reduce the usage of chemicals. Despite the substantial improvements, these novel IP approaches have downsides that hinder their extensive implementation both at the lab-scale and in manufacturing environments. Herein, this review offers valuable insights into the development of effective IP techniques in the fabrication of TFC/TFN membrane for enhanced water separation.
在本文中，我们回顾了各种新颖/改良的界面聚合（IP）技术，这些技术用于在压力驱动和渗透驱动的分离过程中制备聚酰胺（PA）薄膜复合（TFC）/薄膜纳米复合（TFN）膜。尽管传统的IP技术是制造商业纳滤（NF）和反渗透（RO）膜的主导技术，但它存在膜渗透率低、PA层相对较厚以及易受污染等问题，这些问题限制了其性能。在过去十年中，我们看到与用于制造各种水应用的先进PA-TFC/TFN膜的新颖/改良IP技术相关的科学出版物显著增加。到目前为止，新颖/改良的IP实验室规模研究与传统IP技术制备的膜相比，在更好的过滤效率（在不降低溶质截留率的情况下提高渗透率）、改善化学性质（交联度）、降低表面粗糙度以及纳米材料在选择层中的完美嵌入方面，始终产生了令人鼓舞的结果。此外，几种新的IP技术可以精确控制PA层厚度在10纳米以下，并显著减少化学药品的使用量。尽管有了实质性的改进，但这些新颖的IP方法也有缺点，阻碍了它们在实验室规模和制造环境中的广泛应用。在此，本综述为开发用于增强水分离的TFC/TFN膜的有效IP技术提供了有价值的见解。
