塑料科技2025，Vol.53Issue(7)：30-34,5.DOI:10.15925/j.cnki.issn1005-3360.2025.07.006
聚醚砜/聚乙烯亚胺/纳米二氧化钛复合膜的制备与性能研究
Study on Preparation and Properties of Polyether Sulfone/Polyethyleneimine/Nano Titanium Dioxide Composite Membrane
兴亚楠 1谭志勇1
作者信息
- 1. 长春工业大学合成树脂与特种纤维教育部工程研究中心,吉林 长春 130012||长春工业大学化学工程学院,吉林 长春 130012
- 折叠
摘要
Abstract
Polyether sulfone/polyethylenimide(PES/PEI)composite membranes were prepared by immersion precipitation phase transformation process,and the PES/PEI composite membranes were modified by adding nano titanium dioxide(TiO2).The membrane performance evaluation instrument was used to test the anti-fouling performance and pure water flux of the membrane before and after modification,the cup ultrafilter was used to test the rejection performance of the membrane before and after modification,the contact angle measuring instrument was used to test the hydrophilicity of the membrane before and after modification,the morphology and structure changes of the section before and after the membrane modification were observed by scanning electron microscope,and the composition analysis of the composite membrane was carried out by Fourier transform infrared spectrometer.The results showed that the optimum mass fraction of nano TiO2 was 0.2%,the flux of modified PES/PEI/TiO2 composite membrane flux was 292.34 L/(m2·h),the pure water flux was 1.40 times that of the unmodified composite membrane,the contact angle decreaseed from 72.5° to 66°,and the flux recovery rate increased from 70.25%to 86.39%.The hydrophilicity and anti-pollution properties of the modified composite membranes are improved.关键词
聚醚砜/聚乙烯亚胺/亲水改性/二氧化钛Key words
Poyethsulfone/Polyethyleneimine/Hydrophilic modification/Titanium dioxide分类
化学化工引用本文复制引用
兴亚楠,谭志勇..聚醚砜/聚乙烯亚胺/纳米二氧化钛复合膜的制备与性能研究[J].塑料科技,2025,53(7):30-34,5.
