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首页> 外文期刊>RSC Advances >Underwater superoleophobic meshes fabricated by poly(sulfobetaine)/polydopamine co-deposition
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Underwater superoleophobic meshes fabricated by poly(sulfobetaine)/polydopamine co-deposition

机译：由聚（磺基因）/聚二胺共沉积制造的水下超级网状物

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摘要

Porous meshes with superhydrophilicity and underwater superoleophobicity have attracted much attention for oil/water separation. In this work, poly(sulfobetaine methacrylate) (PSBMA), was co-deposited with polydopamine (PDA) to cover steel meshes and to endow them with characteristics for oil/water separation. Compared with PDA-modified meshes, the oil contact angle increases to 158.6 +/- 8.0 degrees and the sliding angle decreases to 3.9 degrees for the PSBMA/PDA-modified ones, indicating superoleophobic behaviour underwater and ultra-low adhesive properties towards oil. These results are mainly attributed to the superhydrophilicity of PSBMA and the highly rough surface morphology in micro-nanoscale introduced during the co-deposition process. The PSBMA/PDA-modified meshes show excellent performance in gravity-driven oil/water separation. They are stable towards organic solvent treatment, and retain the wettability in sea water for a long time. This one-step PSBMA/PDA co-deposition method provides a convenient and effective approach to modify porous materials with underwater superoleophobicity for oil/water separation.
机译：与超亲水性和水下超疏油性多孔网备受关注的油/水分离。在这项工作中，聚（磺基甜菜碱甲基丙烯酸酯）（PSBMA），共沉积用聚多巴胺（PDA）以覆盖钢网格，并将其与用于油/水分离特性赋予。与PDA改性网格相比，油的接触角增加至158.6 +/- 8.0度，滚动角减小到3.9度的PSBMA / PDA改性的，超疏油指示行为水下并朝向油超低粘合性能。这些结果主要归因于PSBMA的超级亲水性，并在共沉积工艺期间引入微纳米级的高度粗糙的表面形态。所述PSBMA / PDA改性网格显示在重力驱动的油/水分离性能优良。他们对有机溶剂处理稳定，并保留在海水中的润湿性很长一段时间。这种一步PSBMA / PDA共沉积方法提供了一种方便而有效的方法来修改多孔材料与油/水分离水下超疏油性。

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  • 来源
    《RSC Advances》 |2015年第59期|共7页
  • 作者

    Ren Peng-Fei; Yang Hao-Cheng; Jin Yi-Ning; Liang Hong-Qing; Wan Ling-Shu; Xu Zhi-Kang;

  • 作者单位

    Zhejiang Univ Dept Polymer Sci &

    Engn MOE Key Lab Macromol Synth &

    Functionalizat Hangzhou 310027 Peoples R China;

    Zhejiang Univ Dept Polymer Sci &

    Engn MOE Key Lab Macromol Synth &

    Functionalizat Hangzhou 310027 Peoples R China;

    Zhejiang Univ Dept Polymer Sci &

    Engn MOE Key Lab Macromol Synth &

    Functionalizat Hangzhou 310027 Peoples R China;

    Zhejiang Univ Dept Polymer Sci &

    Engn MOE Key Lab Macromol Synth &

    Functionalizat Hangzhou 310027 Peoples R China;

    Zhejiang Univ Dept Polymer Sci &

    Engn MOE Key Lab Macromol Synth &

    Functionalizat Hangzhou 310027 Peoples R China;

    Zhejiang Univ Dept Polymer Sci &

    Engn MOE Key Lab Macromol Synth &

    Functionalizat Hangzhou 310027 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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