有图案的密集的雅努斯膜,同时具有强大的防,防湿和防性,用于膜蒸
Chao Wang1, Zhongbao Ma1, Yangbo Qiu1
1School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
Water research
|July 14, 2023
概括
研究人员开发了一种新型的聚胺/聚乙烯化物 (PA/PVDF) 雅努斯膜,以应对膜蒸 (MD) 的挑战. 这种先进的膜表现出了对湿,污染和化的异常抵抗力,为更强大的MD应用铺平了道路.
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:
- 膜蒸 (MD) 被膜污染,湿和缩所阻碍.
- 开发强大的膜对于实际的MD应用至关重要.
研究的目的:
- 设计和制造一种新的PA/PVDF简斯膜,增强抗污染,湿和化的性能.
- 研究膜抵抗这些挑战背后的机制.
主要方法:
- 使用反向界面聚合 (R-IP) 制造PA/PVDF简斯膜.
- 直接接触MD实验,以评估在污染,湿和缩放条件下的膜性能.
- 对抗湿和抗缩机制的分析.
主要成果:
- 这种PA/PVDF Janus膜表现出对表面活性剂诱导的湿,油诱导的污垢和石膏诱导的化具有优越的抵抗力.
- 尺寸选效应,而不是突破压力,被确定为抗湿性质的关键.
- 阐明了一种涉及超性PA层的新型抗缩放机制.
结论:
- 开发的PA/PVDF Janus膜为克服MD的局限性提供了一个有希望的解决方案.
- 这项研究为设计高性能MD膜提供了新的策略.
- 这些发现使膜蒸的应用更加强大和广泛.
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