检测条件对中空纤维超滤膜截留率的影响研究

摘要

An experiment was conducted on the testing conditions for hollow fiber ultra-filtration membranes by taking hollow fiber ultra-filtration membranes made from PES as the object and bovine serum albumin andα-chymotrypsin as testing standard reference.Testing conditions for hollow fiber ultra-filtration membranes included temperature of the testing liquid, concentration of testing liquid and the flow velocity.The result showed that testing liquid with a lower concentration and a relatively fast flow velocity could better reflect the rejection of the membrane tested at normal temperature.%以PES中空纤维超滤膜为研究对象，以牛血清白蛋白和α－糜蛋白酶为测试标准物质，对影响中空纤维超滤膜截留率的检测条件—测试液温度、测试液浓度和膜面流速进行了实验研究。结果表明：常温下，选择较低的测试液浓度和较高的膜面流速能更好的反映膜的截留率。