摘要
以二苯甲酮 (BP)为光引发剂 ,丙烯酰胺 (AAM)为接枝单体 ,以先用紫外光照射引发剂 ,然后将引发剂和单体分步输送到膜上的方法对聚砜单内皮层中空纤维超滤膜的内表面进行接枝改性。实验表明 ,改性后膜的表面亲水性有所上升 ,膜孔径也有一定程度的减小。证明该方法具有可行性 ,并有进一步发展的潜力。
Using benzophenone as photo-initiator, acrylamide as graft monomer, the inner-surface of polysulfone hollow fiber ultrafiltration membrane was modified by a dynamic method. After irradiated under UV, the initiator was pumped through the lumen of the fibers and recirculated back. Then hot solution of monomer (acrylamide) was pumped through the lumen of the fibers. After modification, the membrane gained a better wetting quality. Further more, by this method, the diameter of the pores in the membrane could be adjusted without large reduce of water flux.
出处
《环境污染治理技术与设备》
CSCD
北大核心
2004年第1期32-35,共4页
Techniques and Equipment for Environmental Pollution Control
基金
北京市自然科学基金重点资助项目 (2 0 0 2 10 0 2 )
关键词
中空纤维超滤膜
内表面
接枝改性
亲水性
二苯甲酮
hollow fiber ultrafiltration membrane
inner surface
dynamic method
graft modification
wetting quality
