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公开(公告)号:US4253963A
公开(公告)日:1981-03-03
申请号:US28805
申请日:1979-04-10
CPC分类号: B01D71/16 , B01D69/148 , B01D2323/04
摘要: An asymmetrical ultrafiltration membrane based on cellulose triacetate, optionally substituted by up to 30% cellulose diacetate, is made wettable without tendency to embrittlement or shrinkage by adding hydrophobic synthetic silicic acid to the casting solution.
摘要翻译: 基于纤维素三乙酸酯的不对称超滤膜,任选被多至30%的二乙酸纤维素取代,通过向浇铸溶液中加入疏水性合成硅酸,使其可湿润而不易于脆化或收缩。