A Robust Polyionized Hydrogel with an Unprecedented Underwater Anti-Crude-Oil-Adhesion Property
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- 作者：Shoujian Gao ; Jichao Sun ; Pingping Liu ; Feng Zhang ; Wenbin Zhang ; Shiling Yuan ; Jingye Li and Jian Jin
- 刊名：Advanced Materials
- 出版年：2016
- 出版时间：July 13, 2016
- 年：2016
- 卷：28
- 期：26
- 页码：5307-5314
- 全文大小：2393K
- ISSN：1521-4095
文摘
A polyionized hydrogel polymer (sodium polyacrylate-grafted poly(vinylidene fluoride) (PAAS-g-PVDF)) is fabricated via an alkaline-induced phase-inversion process. PAAS-g-PVDF coatings exhibit unprecedented anti-adhesion and self-cleaning properties to crude oils under an aqueous environment. A PAAS-g-PVDF-coated copper mesh can effectively separate a crude oil/water mixture with extremely high flux and high oil rejection driven by gravity, and is oil-fouling-free for long-term use.