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首页> 外文期刊>Journal of Applied Polymer Science >PrestructuredMXenefillers with uniform channels to enhanceCO(2)selective permeation in mixed matrix membranes
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PrestructuredMXenefillers with uniform channels to enhanceCO(2)selective permeation in mixed matrix membranes

机译：ProStructivmxEnefillers，具有均匀的通道，以增强（2）混合基质膜的选择性渗透

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摘要

The packing pattern of two-dimensional (2D) sheet-like fillers in membranes is relatively random, leading to the unfavorable permeability from tortuous diffusion pathway. A new strategy that using prestructured materials with uniform channels as fillers was proposed. In this work, Ti(3)AlC(2)is etched to prepare multilayered MXene (m-MXene), the channels aggregate as a whole unit, ensure the impossibility of ineffective packing compared with traditional individual sheets, largely facilitating the selective permeation. Then, the m-MXene/Poly (amide-6-b-ethylene oxide) (Pebax) MMMs are synthesized. SEM images demonstrate the accordion shaped structure of filler, which is the multi-channels laminates. Furthermore, the results of gas permeation test exhibit enhanced performance of m-MXene/Pebax MMMs. MMM with 0.5 wt.% m-MXene behaved best, CO(2)permeability of 86.22 Barrer as well as CO2/N(2)selectivity of 104.85, transcending the Robeson upper bound (2008). Having distinct enhancement for CO(2)separation, the m-MXene/Pebax MMMs in this work offer prospective practical applications.
机译：二维（2D）片状填料在膜中的填充模式相对随机，导致迂回扩散路径产生不利的渗透性。提出了一种采用均匀孔道的预应力材料作为填料的新策略。在这项工作中，对Ti（3）AlC（2）进行蚀刻以制备多层MXene（m-MXene），通道作为一个整体聚合，确保与传统的单板相比不可能出现无效填充，在很大程度上促进了选择性渗透。然后，合成了m-MXene/聚（酰胺-6-b-环氧乙烷）（Pebax）MMMs。SEM图像显示了填料的手风琴形结构，即多通道层压板。此外，气体渗透试验的结果显示，m-MXene/Pebax MMMs的性能增强。含0.5 wt.%m-MXene的MMM表现最好，CO（2）渗透率为86.22巴，CO2/N（2）选择性为104.85，超过了Robeson上限（2008年）。本研究中的m-MXene/Pebax MMMs对CO（2）分离有明显的增强作用，具有潜在的实际应用前景。

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  • 来源
    《Journal of Applied Polymer Science》 |2021年第8期|共14页
  • 作者

    Guan Weixin; Yang Xiaochen; Dong Chenyuan; Yan Xiaoming; Zheng Wenji; Xi Yuan; Ruan Xuehua; Dai Yan; He Gaohong;

  • 作者单位

    Xi An Jiao Tong Univ Sch Chem Engn &

    Technol Xian Shaanxi Peoples R China;

    Dalian Univ Technol Sch Chem Engn Panjin Inst Ind Technol Liaoning Key Lab Chem Addit Synth &

    Separat Panjin 124221 Liaoning Peoples R China;

    Dalian Univ Technol Sch Chem Engn Panjin Inst Ind Technol Liaoning Key Lab Chem Addit Synth &

    Separat Panjin 124221 Liaoning Peoples R China;

    Dalian Univ Technol Sch Chem Engn Panjin Inst Ind Technol Liaoning Key Lab Chem Addit Synth &

    Separat Panjin 124221 Liaoning Peoples R China;

    Dalian Univ Technol Sch Chem Engn Panjin Inst Ind Technol Liaoning Key Lab Chem Addit Synth &

    Separat Panjin 124221 Liaoning Peoples R China;

    Dalian Univ Technol Sch Chem Engn Panjin Inst Ind Technol Liaoning Key Lab Chem Addit Synth &

    Separat Panjin 124221 Liaoning Peoples R China;

    Dalian Univ Technol Sch Chem Engn Panjin Inst Ind Technol Liaoning Key Lab Chem Addit Synth &

    Separat Panjin 124221 Liaoning Peoples R China;

    Xi An Jiao Tong Univ Sch Chem Engn &

    Technol Xian Shaanxi Peoples R China;

    Dalian Univ Technol Sch Chem Engn Panjin Inst Ind Technol Liaoning Key Lab Chem Addit Synth &

    Separat Panjin 124221 Liaoning Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 高分子化合物工业（高聚物工业）;
  • 关键词

    CO(2)separation; Pebax; Mixed matrix membranes and MXene;

    机译：CO（2）分离;PEBAX;混合基质膜和MXENE;

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