摘要
通过非溶剂诱导相转化的方法,分别采用聚乙烯吡咯烷酮(PVP-K10)、聚乙二醇(PEG-400)和十六烷基三甲基溴化铵(CTAB)作为致孔剂制备了三种不同的聚砜超滤膜,并借助系列阻力模型对其过滤蛋白质水溶液过程中的抗污染性能进行了定量分析。实验结果表明,因三种致孔剂能促使聚砜超滤膜孔隙结构进一步发展,三种具有不同致孔剂聚砜超滤膜的透水通量都得到了提高;蛋白质溶液过滤过程中,三种聚砜超滤膜的污染阻力都进一步减小,抗污染能力增强。
Through nonsolvent induced phase inversion （NIPS） method, three different types of ultrafihration membranes with three different kinds of porogens were prepared and these pore-forming agents （porogens） were PEG -400, PVP- KI 0 and cetyl trimethyl ammonium bromide （CTAB）, respectively. Their antifouling performances during the uhrafiltration of protein solution were analyzed quantitatively ac- cording to the resistance-in-series model. Experimental results showed that the three different kinds of po- rogens could facilitate the further development of pore structures of polysulfone uhrafihration membranes and water fluxes of polysulfone membranes with the three kinds of porogens were all improved. During the process of protein solution, the fouling resistances of these three kinds of polysulfone membranes were all reduced and the antifouling performance were all enhanced.
出处
《黑龙江大学自然科学学报》
CAS
北大核心
2012年第6期804-810,共7页
Journal of Natural Science of Heilongjiang University
基金
Supported by the National Natural Science Foundation of China(50978067
51178134)
Ministry of Science and Technology of China(2009ZX07424-006
2012BAC05B02)
关键词
聚砜
超滤膜
致孔剂
水通量
膜污染
polysulfone
UF membrane
pore-forming agents
permeability and fouling
