[1]宋国城,丁春.聚酯滤布的超亲水改性及油水分离性能[J].中国给水排水,2022,38(11):49-55.
　SONGGuo-cheng,DINGChun.Superhydrophilic Modification of Polyester Membrane and Its Oil-Water Separation Performance[J].China Water & Wastewater,2022,38(11):49-55.
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聚酯滤布的超亲水改性及油水分离性能

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第38卷 期数: 2022年第11期 页码: 49-55 栏目: 出版日期: 2022-06-01
Title:
Superhydrophilic Modification of Polyester Membrane and Its Oil-Water Separation Performance
作者:
宋国城1， 丁春2
（1.九江学院 材料科学与工程学院，江西 九江 332005；2.九江学院 经济学院，江西 九江 332005）
Author(s):
SONG　Guo-cheng1， DING　Chun2
（1. School of Materials Science and Engineering， Jiujiang University， Jiujiang 332005， China；2. School of Economics， Jiujiang University， Jiujiang 332005， China）
关键词:
聚酯滤布;  抗污染;  碳酸钙;  油水分离
Keywords:
polyester membrane;  anti-fouling;  CaCO3;  oil-water separation
摘要:
为了提高聚酯滤布在过滤分离领域的抗污染性能，首先利用聚乙烯吡咯烷酮在滤布表面交联沉积，随后利用多巴胺自聚合吸附能力和交替浸渍矿化技术，在聚酯滤布表面沉积碳酸钙矿物涂层。结果表明，矿化修饰后，在纤维表面可以相对均匀地沉积矿物涂层，且所得复合滤布具有超亲水性。矿化修饰后的复合滤布过滤分离淀粉溶液及油水乳液时，水通量恢复率分别达到89%和88%左右，复合滤布的抗污染性能相比未改性前明显提高，且重复利用性能较好。综合来看，矿化率在11.4%左右的聚酯复合滤布改性效果最佳。
Abstract:
To improve the anti-fouling performance of polyester membrane in filtration and separation, polyvinylpyrrolidone (PVP) was firstly deposited and cross-linked on the surface of the membrane, and then calcium carbonate mineral was deposited and coated on the surface of the membrane by dopaminine self-polymerization adsorption and alternating soaking mineralization technology. After the mineralized modification, mineral coating was deposited relatively uniformly on the membrane surface, and the composite membrane had superhydrophilic properties. The recovery ratio of water flux reached 89% and 88% respectively when the modified membrane was applied to filter and separate the starch solution and oil-water emulsion. The anti-fouling performance of the composite membrane was obviously improved compared with that before the modification, and its reutilization performance was good. On the whole, the polyester composite membrane with mineralization rate of 11.4% had the best modification performance.
更新日期/Last Update: 2022-06-01