Solvent resistant nanofiltration (SRNF) is now a powerful tool for addressing environmental issues. Hence, we report the fabrication of a thin film composite (TFC) membrane comprised of a novel HDPE support, a polydopamine (PDA)/Tannic acid-Fe(III) interlayer and a polyamide (PA) skin layer. In this respect, high density polyethylene (HDPE)-polystyrene (PS)-styrene-ethylene-butylene-styrene (SEBS) blends were formed with different compositions by mixing via a Brabender machine and making films by using a hot press instrument. Next, a solvent extraction technique was employed for extracting the dispersed phase and making the HDPE membranes. The support membrane with optimum properties was coated with a PDA interlayer. A tannic acid-Fe(III) interlayer was also formed on the as-prepared PDA layer so that the hydrophilicity of the support surface was enhanced to form a defect-free PA layer. The modified support was utilized for the fabrication of the PA top layer by using m-phenylene diamine (MPD) and trimesoyl chloride (TMC) monomers. The prepared TFC membrane provided a significant dye rejection ability (99.9% Direct Yellow, 99.7% Methyl Green, 99.2% Rhodamine B, and 96.1% Methyl Orange), extraordinary solvent resistance ability in harsh solvents, and good methanol (MeOH) Flux (2.25 L/m².h.bar) in SRNF applications. The skin-substrate adhesion strength of the top layer was also evaluated by a back-ward flush operation. It was demonstrated that the interlayer and the skin layer had an excellent adhesion with the support membrane.

耐溶剂纳滤 (SRNF) 现在是解决环境问题的有力工具。因此，我们报告了由新型 HDPE 支撑、聚多巴胺 (PDA)/单宁酸-Fe(III) 夹层和聚酰胺 (PA) 表层组成的薄膜复合 (TFC) 膜的制造。在这方面，高密度聚乙烯（HDPE）-聚苯乙烯（PS）-苯乙烯-乙烯-丁烯-苯乙烯（SEBS）共混物通过Brabender机器混合并使用热压仪器制成薄膜而形成具有不同组成的共混物。接下来，采用溶剂萃取技术萃取分散相并制备 HDPE 膜。具有最佳性能的支撑膜涂有 PDA 夹层。在所制备的PDA层上还形成了单宁酸-Fe(III)中间层，从而增强了载体表面的亲水性，形成了无缺陷的PA层。通过使用间苯二胺 (MPD) 和均苯三甲酰氯 (TMC) 单体，改性支撑用于制造 PA 顶层。制备的 TFC 膜具有显着的染料排斥能力（99.9% 直接黄、99.7% 甲基绿、99.2% 罗丹明 B 和 96.1% 甲基橙）、在苛刻溶剂中的出色耐溶剂能力和良好的甲醇 (MeOH) 通量（2.25升/米² .h.bar) 在 SRNF 应用程序中。顶层的皮肤-基材粘合强度也通过反向冲洗操作进行评估。证明中间层和表层与支撑膜具有优异的粘附性。