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零油污膜具有高覆盖的Zwitterionic聚合物,用于分离油在水中的乳液

Aqiang Wang¹, Yuzhang Zhu², Wangxi Fang²

¹College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, 215123, P. R. China.

|June 26, 2023

概括

研究人员开发了一种新型的零油污膜,通过接种一个zwitterionic聚合物,实现油/水分离的卓越性能. 这种先进的膜技术有效地防止各种乳化油滴的污染.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
环境科学环境科学

背景情况:

现有的膜的水友性改造在完全防止乳化油滴污染方面存在局限性,尤其是在不同的液滴大小的情况下.
开发具有强大的抗油污能力的膜,以在高流量条件下有效分离油/水,仍然是一个重大挑战.

研究的目的:

通过zwitterionic聚合物接种,制造一种新型膜,通过创建密集的水化防御屏障,从而呈现零油污.
调查特烯聚合物覆盖在增强对乳化油滴的防性能方面的关键作用.

主要方法:

一个均的protocatechuic酸层沉积在一个聚乙烯化物) 膜上,以提供丰富的反应点.
实现了zwitterionic聚合物的密集接种,在膜表面创建了一个无缺陷的水分屏障.
修改后的膜的抗污染性能和水流量使用油与水混合乳液进行了评估.

主要成果:

修改了93%的zwitterionic聚合物覆盖的聚乙烯化物) 膜显示零油污.
膜保持了高水流量 (≈800 L m−2 h−1 bar−1) 流量可以忽略的下降 (≈0%) 和完整的流量恢复 (≈100%).
开发的膜在油/水分离的全面防性能上显著优于现有膜.

结论:

高覆盖率的zwitterionic聚合物接种对于创建有效的水分屏障来防止油污污染至关重要.
本研究提出了一种可行的策略,用于制造超级防膜,用于要求高的油/水分离应用.
开发的膜技术为克服膜式分离过程中持续存在的污染问题提供了有希望的解决方案.

关键词:

油/水分离器的使用方法超性膜的超性膜.表面移植是一种表面移植.零油污染 - 零油污染这种聚合物是zwitterionic聚合物.

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