摘要
对添加不同分子量及不同浓度的聚乙二醇（ＰＥＧ）改性聚乙烯醇（ＰＶＡ）超滤膜的制备进行了初步的探索，实验表明：对ＰＶＡ－１７５，当ＰＥＧ的分子量大于６０００时，因ＰＥＧ与ＰＶＡ相溶性变差而不能成膜．ＰＥＧ－１０００对ＰＶＡ－１７５超滤膜的改性有较好的作用，调节ＰＥＧ与ＰＶＡ的比例，可得到截留分子量约５０００和１５０００的超滤膜．
The influence factors,such as the molecular weight and different concentration of polyethylene glycol (PEG) was studied on preparation of polyvinyl alcohol (PVA) ultrafiltration (UF)membrane.The PEG PVA UF membrane cann't be made when the molecular weight of PEG is more than 6 000.The results show that PEG is of good use for the improvement of the performances of PVA UF membrane.PVA UF member with molecular weight cut off 5 000 and 15 000 can be made by selecting proper composition of PEG PVA casting solution.
出处
《中南民族学院学报（自然科学版）》
1998年第2期10-14,共5页
Journal of South-Central University for Nationalities(Natural Sciences)
关键词
聚乙二醇
聚乙烯醇
改性
超滤膜
polyethylene glycol
polyvinyl alcohol
improve
ultrafiltration membrane
ultrafiltration
