摘要
通过氨化聚醚砜(PES-NH2)与纯聚醚砜(PES)共混的方法,经过非溶剂致相转化(NIPS)法得到了亲水抗污型聚合物膜。通过扫描电子显微镜(SEM)和X射线电子能谱(XPS)对膜的结构和表面化学组成进行了分析。结果表明,以氨化聚醚砜(PES-NH2)为共混改性剂时,共混膜的表面亲水性和抗污染性能均得到显著改善;当改性剂的含量为6%且压力为0.2 MPa时,膜材料的水通量可达到146.3 L/(m^2·h),其抗污染性能和截留率都相对较好。通过分子氨化改性能够显著改善聚醚砜膜的亲水性和抗污染能力。
In this paper, hydrophilic and antifouling polymer membranes were prepared by non-solvent phase transformation by blending of ammoniated polyethersulfone (PES-NH2) with pure polyethersulfone The structure and surface chemical composition of the membranes were characterized by scanning electron microscopy and X-ray electron spectroscopy. When PES-NH2 was used as the blending modifier, the surface hydrophilicity and anti-pollution properties of the blended membranes were significantly improved. The water flux of the membrane material could reach 146.3 L/(m^2·h) when the modifier content was 6 % and the pressure was 0.2 MPa, and its anti-pollution performance and rejection rate were relatively good. The experimental results show that the PES-NH2 could significantly improve the hydrophilicity of the blend membrane and had great potential for development in water treatment and protein separation.
作者
张绍虎
李丹
冉奋
ZHANG Shaohu;LI Dan;RAN Fen(State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050,China)
出处
《功能材料》
EI
CAS
CSCD
北大核心
2019年第12期12216-12220,共5页
Journal of Functional Materials
基金
国家自然科学基金资助项目(51763014)
关键词
聚醚砜
相转化法
聚合物膜
共混
polyethersulfone
phase inversion
polymer membrane
blending membrane
