纳米SiO2-聚乙烯醇复合超滤膜的制备及应用
收稿日期: 2002-01-19
修回日期: 2002-01-19
网络出版日期: 2010-10-01
Preparation and application of nano-size dsilicondioxide-polyvinyl alcohol compositeultrafil tration membranes
Received date: 2002-01-19
Revised date: 2002-01-19
Online published: 2010-10-01
姜云鹏, 王榕树 . 纳米SiO2-聚乙烯醇复合超滤膜的制备及应用[J]. 工业水处理, 2002 , 22(5) : 12 -14 . DOI: 10.11894/1005-829x.2002.22(5).12
The casting solutionis comprised of water as solvent，polyethyl enegly cols(PEG)as additive by adding nanosized sili condioxide(SiO22)to a solution of polyvinyl alcohol(PVA).The coagulation bathis a solution of Na2SO4/KOH/H2O.Nano-sized SiO2-PVA composite membranes are prepared by the phase-inversion process.Experiments show that the porediameter of the resulting membranes is sensitive to pressure.The effects of SiO2content and PEG content on the performance of the membranes are investigated.Three membranes are indication of excellentanti-fouling characteristics and stability in ultrafiltration experiments of oil-bearing wastewater.
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