在这项研究中,制备了与不同比例的聚砜(PSU)和聚醚酰亚胺(PEI)聚合物共混的膜。它们去除河流污染物的潜力,它们是潜在的饮用水源,被调查。扫描电子显微镜分析表明,PSU膜具有致密且均匀的层,而PEI的加入形成了海绵状底物。制造的膜的含水量在5.37和22.42%之间变化,孔隙率28.73-89.36%,接触角69.18-85.81%,和平均纯水通量257.25-375.32L/m2h。混合膜去除浊度,氯化物,碱度,电导率,硫酸盐,铁,锰,总有机碳高达98.32、92.28、96.87、90.67、99.58、94.63、97.48和79.11%,分别。这些结果表明,当PEI被添加到PSU聚合物中时,过滤效率由于膜的亲水性增加而增加。混合这两种聚合物可以优化膜的性能,如渗透性,选择性,和机械强度。此外,膜制造工艺简单,成本低。
In this study, membranes blended with polysulfone (PSU) and polyetherimide (PEI) polymers in different ratios were fabricated. Their potential to remove pollutants from rivers, which are a potential drinking water source, was investigated. Scanning electron microscopy analysis revealed that the PSU membranes had a dense and homogeneous layer, whereas the addition of PEI formed a spongy substrate. The water content of the fabricated membranes varied between 5.37 and 22.42%, porosities 28.73-89.36%, contact angles 69.18-85.81%, and average pure water fluxes 257.25-375.32 L/m2 h. The blended membranes removed turbidity, chloride, alkalinity, conductivity, sulfate, iron, manganese, and total organic carbon up to 98.32, 92.28, 96.87, 90.67, 99.58, 94.63, 97.48, and 79.11%, respectively. These results show that when PEI was added to the PSU polymer, the filtration efficiency increased owing to an increase in the hydrophilicity of the membranes. Blending these two polymers enabled the optimization of membrane properties such as permeability, selectivity, and mechanical strength. In addition, membrane fabrication processes are simple and incur low costs.