详细信息
文献类型:期刊文献
中文题名:空气段间距对CA/PES共混超滤膜的影响
英文题名:Effect of the air-gap distance on CA/PES ultra-filtration blend membrane
作者:顾志云[1];许振良[1];魏永明[1];杨虎[1]
机构:[1]化学工程联合国家重点实验室,华东理工大学化学工程研究所,膜科学与工程研发中心,上海200237
年份:2016
卷号:36
期号:5
起止页码:31
中文期刊名:膜科学与技术
外文期刊名:Membrane Science and Technology
收录:CSTPCD;;北大核心:【北大核心2014】;CSCD:【CSCD2015_2016】;
基金:2013年国家新材料研发及产业化专项(GX1301);国家科技支撑计划项目(2014BAB07B01);江苏省科技工业支撑计划(BE2013031)
语种:中文
中文关键词:空气段;共混;超滤膜;醋酸纤维素;聚醚砜
外文关键词:air-gap distanee;blend;ultra-filtration membrane;cellulose aeetate;polyethersulphone
摘要:采用带空气段的非溶剂致相分离(NIPS)法制备了CA/PES共混中空纤维超滤膜。通过前期实验确定了CA/PES溶液的聚合物总质量分数为25%,CA和PES的质量比为9∶1.研究了空气段间距(1-17cm)对CA/PES共混超滤膜性能的影响.实验结果表明,当空气段间距为9cm时,CA/PES共混超滤膜的通量为73.3L/(m^(2)·h),对PEG20000的截留率达84.2%,膜孔径为4.6nm.
CA/PES hollow fiber ultra-filtration(UF)membranes were prepared via non-solvent induced phase separation(NIPS)method with air gap.Based on the previous experiments,the total concentration of cellulose acetate(CA)/polyethersulphone(PES)blend solution was chosen as 25%and the mass ratio of CA/PES was 9:1.The effect of the air-gap distance on the performance of CA/PES UF membranes was investigated.The results showed that the UF membrane has a pure water flux of 73.3 L/(m^(2)·h),a PEG20000 rejection of 84.2%and 4.6 nm pore size when the UF membrane was prepared with an air gap of 9 era.
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