The synergistic effect of nanoboehmite particles and various amounts of poly(ethylene glycol) (PEG 4000, 0−4 wt.%) as a pore-former agent on the characteristics, permeability and fouling resistance ability of the nanoboehmite/EPVC blended membranes has been investigated. Scanning electron microscopy (SEM), energy dispersive X-ray (EDX), atomic force microscopy (AFM) and water contact angle analyses were utilized to examine the morphology, surface roughness, nanoboehmite dispersion and surface hydrophilicity, respectively. By increasing the PEG content in the EPVC dope solution, hydrophilicity, porosity and pores diameter improved, leading to the performance promotion of the membranes. The pure water flux (PWF), flux recovery ratio (FRR) and bovine serum albumin (BSA) flux of the nanoboehmite/EPVC composite membrane improved by enhancing the PEG loading up to 2 wt.% and then they dropped at higher content of it. Anti-fouling ability of the mixed-matrix nanoboehmite/EPVC composite membrane including 2 wt.% of PEG had a dramatic growth (68.3%) relative to the pristine EPVC membrane. Moreover, all the membranes were able to reject BSA proteins more than 98%. The obtained results displayed that the influence of PEG concentration enhancement on the characteristics and efficiency of the EPVC and EPVC/nano-composite membrane was different. The addition of various amounts of PEG to the nano-composite membranes matrix has not unfavorably influenced the amount of BSA rejection and membrane structure.

纳米勃姆石颗粒和各种数量的聚（乙二醇）（PEG 4000，0-4 wt。％）作为造孔剂的协同作用对纳米勃姆石/ EPVC混合膜的特性，渗透性和抗污能力具有协同作用调查。利用扫描电子显微镜（SEM），能量色散X射线（EDX），原子力显微镜（AFM）和水接触角分析分别检查了形貌，表面粗糙度，纳米勃姆石分散性和表面亲水性。通过增加EPVC涂料溶液中的PEG含量，亲水性，孔隙率和孔直径得到改善，从而提高了膜的性能。纯净水通量（PWF），纳米勃姆石/ EPVC复合膜的通量回收率（FRR）和牛血清白蛋白（BSA）通量通过将PEG含量提高至2 wt。％而提高，然后在其含量较高时下降。相对于原始的EPVC膜，包含2重量％的PEG的混合基体纳米勃姆石/ EPVC复合膜的防污能力具有显着的增长（68.3％）。而且，所有的膜都能够排斥98％以上的BSA蛋白。所得结果表明，PEG浓度增加对EPVC和EPVC /纳米复合膜的特性和效率的影响是不同的。向纳米复合膜基质中添加各种量的PEG并不会不利地影响BSA截留量和膜结构。相对于原始的EPVC膜，包含2重量％的PEG的混合基体纳米勃姆石/ EPVC复合膜的防污能力具有显着的增长（68.3％）。此外，所有膜都能够排斥98％以上的BSA蛋白。所得结果表明，PEG浓度增加对EPVC和EPVC /纳米复合膜的特性和效率的影响是不同的。向纳米复合膜基质中添加各种量的PEG并不会不利地影响BSA截留量和膜结构。相对于原始的EPVC膜，包含2重量％的PEG的混合基体纳米勃姆石/ EPVC复合膜的防污能力具有显着的增长（68.3％）。此外，所有膜都能够排斥98％以上的BSA蛋白。所得结果表明，PEG浓度增加对EPVC和EPVC /纳米复合膜的特性和效率的影响是不同的。向纳米复合膜基质中添加各种量的PEG并不会不利地影响BSA截留量和膜结构。所得结果表明，PEG浓度增加对EPVC和EPVC /纳米复合膜的特性和效率的影响是不同的。向纳米复合膜基质中添加各种量的PEG并不会不利地影响BSA截留量和膜结构。所得结果表明，PEG浓度增加对EPVC和EPVC /纳米复合膜的特性和效率的影响是不同的。向纳米复合膜基质中添加各种量的PEG并不会不利地影响BSA截留量和膜结构。