选择适当的膜液组成和制备条件，可以制得截留分子量为67000的超滤膜。
The UF membrane with molecular weight cut off 67000 can be made by selecting proper composition of casting solution and preparation condition.
选择适当的膜液组成和制备条件，可制得截留分子量分别为2000,6000,10000的超滤膜。
The UF membrane with molecular weight cut off 2000, 6000 and 10000 can be made by selecting proper composition of casting solution and preparation condition.
截留分子量相同或相近的超滤膜，膜孔形态参数差别很大。
The parameters of UF membrane pore were quite different even if the membrane had the same molecular weight cut-off.
本文以聚砜和磺化聚砜为原料，制备了低截留分子量的共混超滤膜，此种膜具有适中透水量，对分子量3000的PEG截留率在90%以上。
The blend ultrafiltration membrane of the polysulfone and sulfonated polysulfone has been obtained. This membrane has moderate water flux, more than 90% retention for PEG 3000.
本文以聚砜和磺化聚砜为原料，制备了低截留分子量的共混超滤膜，此种膜具有适中透水量，对分子量3000的PEG截留率在90%以上。
The blend ultrafiltration membrane of the polysulfone and sulfonated polysulfone has been obtained. This membrane has moderate water flux, more than 90% retention for PEG 3000.
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