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Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification
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热敏感的微凝/聚乙硫复合超膜

Wei Fan1, Shaoxiong Zhu1, Jingjing Nie2

  • 1State Key Laboratory of Motor Vehicle Biofuel Technology, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China.

Materials (Basel, Switzerland)
|July 29, 2023
PubMed
概括

热敏微凝 (PMO-MG) 被纳入了聚硫 (PES) 膜中. 这些PMO-MGs/PES膜表现出增强的水友性,抗污染特性,以及可调节的水流与温度变化.

科学领域:

  • 材料科学 材料科学 材料科学
  • 聚合物化学 聚合物化学
  • 膜技术 膜技术 膜技术

背景情况:

  • 超过膜对于水的净化至关重要.
  • 提高膜性能,特别是水友性和防腐性质,仍然是一个关键的挑战.
  • 热敏材料提供了对膜功能的动态控制的潜力.

研究的目的:

  • 合成热敏感的聚 (乙烯基醇) 甲基酸盐 (OEGMA475) 和以乙烯甲基酸盐 (MEO2MA) 为基础的微凝 (PMO-MGs).
  • 使用非溶剂诱导相分离 (NIPS) 制造包含PMO-MGs的聚 (乙硫) (PES) 复合膜.
  • 调查PMO-MGs对膜表面特性,水友性,防性能和热响应流量行为的影响.

主要方法:

  • 无表面活性剂的乳液聚合用于PMO-MG合成.
  • 非溶剂诱导的相分离 (NIPS) 用于膜制造.
  • 使用传输电子显微镜 (TEM),X射线光电子光谱学 (XPS),场发射扫描电子显微镜 (FESEM),里埃变换红外光谱学 (FTIR) 和接触角度光度学进行表征.

主要成果:

  • 合成了平均直径为323±12 nm的球形PMO-MG.
  • 加入PMO-MGs显著改善了膜表面的水友性和防性质.
关键词:
膜膜膜膜是一种微凝是一种微凝.热敏度的热敏度是指热敏度是指热敏度.超过是一种超过.

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  • 纯水流量在20°C时从217.6 L·m-2·h-1 (纯 PES) 增加到369.7 L·m-2·h-1 (20 wt% PMO-MGs/PES).
  • 观察到一种热敏的流量行为,随着温度从20°C上升到45°C,流量从369.7升至618.7升.

    • 结论:

    • 通过NIPS,PMO-MGs可以有效地纳入PES膜.
    • 复合膜表现出增强的表面水友性和优越的防能力.
    • 开发的膜具有可调节的热敏性质,为先进的过应用提供了潜力.