西安工程大学学报2017，Vol.31Issue(6)：752-757,6.DOI:10.13338/j.issn.1674-649x.2017.06.005
低温氮等离子体改性聚丙烯腈超滤膜及其光谱诊断
Polyacrylonitrile ultrafiltration membrane modified by low temperature N2 plasma and its spectral diagnosis
摘要
Abstract
To improve the anti-pollution ability and hydrophilicity of ultrafiltration membrane , the polyacrylonitrile (PAN) ultrafiltration membrane was modified by low temperature nitro-gen plasma ,and the plasma was diagnosed during the modification process .The hydrophiliza-tion of the membrane surface was characterized by the change of the contact angle before and after modification .And the membrane flux ,rejection rate and flux decay rate were used to characterize the filtration and anti-fouling properties of ultrafiltration membrane .The results show that when the best treatment condition is power 100 W and time 90 s ,water contact an-gle declines from 57°of the original membrane down to 17° .The hydrophilicity of the modified membrane ,and the anti-pollution performance are remarkably improved .The electron temper-ature is negatively correlated with the discharge power during plasma modification ,and posi-tively correlates with the pressure inside the reaction chamber .关键词
聚丙烯腈超滤膜/等离子体改性/抗污染/光谱诊断Key words
polyacrylonitrile ultrafiltration membrane/plasma modification/anti-pollution/spectral diagnosis分类
化学化工引用本文复制引用
李秋怡,李茹,樊琰,张琪,李青..低温氮等离子体改性聚丙烯腈超滤膜及其光谱诊断[J].西安工程大学学报,2017,31(6):752-757,6.基金项目
国家自然科学基金资助项目(11105102) （11105102）
陕西省教育厅科研资助项目(12JK0651) （12JK0651）
