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首页> 外文期刊>Journal of Applied Polymer Science >Hemodialysis membrane prepared from cellulose/N-methylmorpholine-N-oxide solution. I. Effect of membrane preparation conditions on its permeation characteristics
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Hemodialysis membrane prepared from cellulose/N-methylmorpholine-N-oxide solution. I. Effect of membrane preparation conditions on its permeation characteristics

机译：由纤维素/ N-甲基吗啉-N-氧化物溶液制备的血液透析膜。一，膜制备条件对其渗透特性的影响

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摘要

Flat hemodialysis membranes were prepared from cellulose/IV-methylmorpholine-AT-oxide (NMMO) solutions (dope) with different cellulose concentrations (6-8 wt %) by using a phase-inversion method. The coagulant used was NMMO aqueous solution, of which the NMMO concentration and its temperature were varied in the range of 0 to 50 wt % and 5 to 60degreesC, respectively. The effects of these preparation conditions on the permeation characteristics, the ultrafiltration rate (UFR) of pure water, and sieving coefficient (SC) of dextran, were investigated. The decrease in cellulose concentration of the dope and the increases in both temperature and NMMO concentration of the coagulant gave a membrane with high UFR. Concerning the SC, the increase of the cellulose concentration and the decreases in both temperature and NMMO concentration gave a good result. Consequently, the membrane having the preferable UFR and SC as a hemodialysis membrane was obtained when the 8 wt % cellulose dope was coagulated in water at 5degreesC. (C) 2002 Wiley Periodicals, Inc. [References: 13]
机译：通过使用相转化法从具有不同纤维素浓度（6-8 wt％）的纤维素/ IV-甲基吗啉-AT-氧化物（NMMO）溶液（浓液）制备平坦的血液透析膜。所用的凝结剂是NMMO水溶液，其NMMO浓度和其温度分别在0至50wt％和5至60℃的范围内变化。研究了这些制备条件对渗透性能，纯水超滤速率（UFR）和右旋糖酐筛分系数（SC）的影响。浓液中纤维素浓度的降低以及凝结剂的温度和NMMO浓度的增加，使膜具有较高的UFR。关于SC，纤维素浓度的增加以及温度和NMMO浓度的降低都给出了良好的结果。因此，当将8wt％的纤维素浓液在5℃的水中凝固时，获得具有优选的UFR和SC的膜作为血液透析膜。 （C）2002 Wiley Periodicals，Inc. [参考：13]

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