Thin film composite (TFC) polyamide (PA) membranes are typically prepared using the interfacial polymerization (IP) method, which synthesizes the PA layer by soaking in aqueous diamine and organic acyl chloride solutions and allowing the occurrence of amidation. The conventional IP process has been used over several decades in the industrial production of TFC membranes for water purification and excess amounts of monomer solutions are used for PA thin film layer synthesis, generating a lot of chemical wastes. In this work, we first demonstrated the TFC PA membrane fabrication using simple inkjet printing of aqueous and organic inks to effectively prepare a PA layer with no chemical wastes. The organic acyl chloride ink was newly formulated by the combination of dodecane and toluene solvents to allow printability. Precise and uniform depositions of monomer inks via the inkjet printing approach were able to coat a dense and defect-free PA film onto the support membrane using only small volumes of chemicals. After multiple printing numbers of inks, the PA layer was optimized with two printing cycles (30.17 mL m⁻²) and three printing cycles (8.36 mL m⁻²) of diamine and triacyl chloride inks, respectively, followed by heat treatment. The inkjet-printed TFC-M2T3-15 membrane exhibited a high salt rejection (95.33 %) which showed higher performance compared to that of the conventional IP-prepared TFC membrane (89.64 %).

薄膜复合 (TFC) 聚酰胺 (PA) 膜通常使用界面聚合 (IP) 方法制备，该方法通过浸泡在二胺和有机酰氯水溶液中并允许发生酰胺化来合成 PA 层。几十年来，传统的 IP 工艺已用于工业生产用于水净化的 TFC 膜，并且过量的单体溶液用于 PA 薄膜层的合成，产生了大量的化学废物。在这项工作中，我们首先展示了使用简单的水性和有机墨水喷墨打印的 TFC PA 膜制造，以有效地制备没有化学废物的 PA 层。有机酰氯油墨是通过十二烷和甲苯溶剂的组合新配制的，具有可印刷性。通过喷墨打印方法精确且均匀地沉积单体油墨，仅使用少量化学品即可将致密且无缺陷的 PA 薄膜涂覆到支撑膜上。在多次印刷油墨后，PA 层通过两个印刷周期（30.17 mL m^-2 ) 和三个印刷周期 (8.36 mL m ^-2 ) 分别是二胺和三酰氯油墨，然后进行热处理。喷墨打印的 TFC-M2T3-15 膜具有高盐截留率 (95.33%)，与传统 IP 制备的 TFC 膜 (89.64%) 相比表现出更高的性能。