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首页> 外文期刊>Journal of Applied Polymer Science >Effect of various additives on pore size of polysulfone membrane by phase-inversion process
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Effect of various additives on pore size of polysulfone membrane by phase-inversion process

机译：相变法不同添加剂对聚砜膜孔径的影响

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The phase-inversion process was used to prepare integrally skinned asymmetric polysulfone (PSf) membranes with different pore sizes. Membranes were prepared from a casting solution of PSf; N-methyl-2-pyrrolidone (NMP) as solvent; and 1,4-dioxane, diethylene glycol dimethyl ether (DGDE), acetone, and gamma-butyrolactone (GBL) as additives by immersing them in water as a coagulant. The effect of the additives on membrane performance and structure was investigated. The low miscibility of 1,4-dioxane, DGDE, and acetone with the coagulant resulted in reduced membrane pore size. However, by using GBL as additive pore size of the membrane was slightly increased because of its higher miscibility with the coagulant than NMP. Changing the amount of additives in the casting solution could control the molecular-weight cutoff values of asymmetric membranes. (C) 2003 Wiley Periodicals, Inc. [References: 18]
机译：相转化法用于制备具有不同孔径的整体表皮不对称聚砜（PSf）膜。膜是从PSf的浇铸溶液中制备的; N-甲基-2-吡咯烷酮（NMP）作为溶剂;将1,4-二恶烷，二甘醇二甲醚（DGDE），丙酮和γ-丁内酯（GBL）作为添加剂，方法是将它们浸入水中作为混凝剂。研究了添加剂对膜性能和结构的影响。 1,4-二恶烷，DGDE和丙酮与混凝剂的低混溶性导致膜孔径减小。但是，通过使用GBL作为膜的添加剂，由于其与凝结剂的混溶性高于NMP，因此膜的孔径略有增加。改变流延溶液中添加剂的量可以控制不对称膜的分子量截留值。 （C）2003 Wiley Periodicals，Inc. [参考：18]

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