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现代化工  2021, Vol. 41 Issue (12): 99-102,106    DOI: 10.16606/j.cnki.issn0253-4320.2021.12.020
  科研与开发 本期目录 | 过刊浏览 | 高级检索 |
磁场诱导构建非均质PEBA磁性膜及其氧氮分离性能的研究
康雪婷, 万超, 金腾, 白云翔, 董亮亮, 张春芳
江南大学化学与材料工程学院, 合成与生物胶体教育部重点实验室, 江苏 无锡 214122
Fabrication of anisotropic PEBA magnetic membranes via inducement of magnetic field and study on its performance for O2/N2 separation
KANG Xue-ting, WAN Chao, JIN Teng, BAI Yun-xiang, DONG Liang-liang, ZHANG Chun-fang
Key Laboratory of Synthetic and Biological Colloids of the Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
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摘要 采用溶剂挥发法并在成膜过程中引入外加磁场,借助磁场诱导作用促使Fe3O4磁性粒子向膜表面迁移,构建具有非均质结构的聚醚嵌段聚酰胺(PEBA)磁性膜,并对膜结构和氧氮分离性能进行研究。结果表明,磁场诱导迁移使磁性粒子在膜表面富集形成非均质结构;与均质磁性膜(i-PEBA/Fe3O4)相比,非均质磁性膜(ani-PEBA/Fe3O4)的饱和磁化强度提高了53%,表现出更高的磁响应性;当Fe3O4质量分数为10%时,非均质磁性膜的O2渗透系数为36.84 Barrer,O2/N2理想选择性为4.55,具有良好的氧氮分离性能。
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康雪婷
万超
金腾
白云翔
董亮亮
张春芳
关键词:  磁性膜  非均质结构  磁场诱导  O2/N2分离    
Abstract: Polyether block polyamide (PEBA) magnetic membranes with an anisotropic structure are constructed through the solvent evaporation process under an external magnetic field, by which Fe3O4 magnetic particles in the membranes concentrates near the membrane surface.The relationship between the structure and O2/N2 separation performance of membrane is studied.It is indicated that magnetic field induced migration makes magnetic particles accumulate on the membrane surface to form heterogeneous structure;the saturation magnetization of anisotropic magnetic membrane (ani-PEBA/Fe3O4) is 53% higher than that of isotropic magnetic membrane (i-PEBA/Fe3O4), showing a higher magnetic responsiveness.As Fe3O4 content is 10wt%, the anisotropic magnetic membrane exhibits a superior O2/N2 separation performance, with an O2 permeability coefficient of 36.84 Barrer and an ideal O2/N2 selectivity of 4.55.
Key words:  magnetic membrane    anisotropic structure    magnetic field induced    O2/N2 separation
收稿日期:  2020-12-31      修回日期:  2021-10-07           出版日期:  2021-12-20
ZTFLH:  TB333  
  TQ620.9  
基金资助: 国家自然科学基金项目(21576114)
通讯作者:  张春芳(1977-),女,博士,副教授,主要从事膜分离方面研究,通讯联系人,zcf326@163.com。    E-mail:  zcf326@163.com
作者简介:  康雪婷(1994-),女,硕士研究生,主要从事膜材料制备及应用研究,1527488126@qq.com
引用本文:    
康雪婷, 万超, 金腾, 白云翔, 董亮亮, 张春芳. 磁场诱导构建非均质PEBA磁性膜及其氧氮分离性能的研究[J]. 现代化工, 2021, 41(12): 99-102,106.
KANG Xue-ting, WAN Chao, JIN Teng, BAI Yun-xiang, DONG Liang-liang, ZHANG Chun-fang. Fabrication of anisotropic PEBA magnetic membranes via inducement of magnetic field and study on its performance for O2/N2 separation. Modern Chemical Industry, 2021, 41(12): 99-102,106.
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https://www.xdhg.com.cn/CN/10.16606/j.cnki.issn0253-4320.2021.12.020  或          https://www.xdhg.com.cn/CN/Y2021/V41/I12/99
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