聚醚砜中空纤维超滤膜的研制

本文以聚醚砜（PES）为膜材料，聚乙烯吡咯烷酮（PVP）、聚乙二醇（PEG）-400为添加剂，N，N-二甲基乙酰胺（DMAC）为溶剂，用非溶剂致相分离法制备了超滤膜——聚醚砜中空纤维超滤膜。通过正交试验法探索喷丝头距离水面的高度、凝固浴的温度、PES浓度、PEG-400浓度等因素对膜性能的影响，同时进一步研究了三个因素对成膜性能的影响规律，分析并确定了制备PES中空纤维超滤膜的最佳实验条件为：喷丝头距离水面的高度20cm，凝固浴温度318K-328K，PES浓度为18％。

Preparation and Applications of Polyethersulfone Hollow Fibre Ultrafiltration Membrane

In this paper, Polyether sulfone （PES） uhrafiltration membrane was prepared by non-solvent induced phase separation method,with polyvinylpyrrolidone （PVP） , polyethylene glycol （PEG） -400 as additives, and dimethylacetamide （DMAC） as solvent. The influence of the height of the spinneret from the water surface,the temperature of coagulation bath,the concentration of PES and PEG- 400 on the properties of the member was investigated by orthogonal design. The optimal condition for PES uhrafiltration membrane preparation was found to be： the height of the spinneret from the water surface is about 20cm;the temperature of the coagulation bath temperature is about 318K-328K;the PES concentration is about 18%.