A Facile and Fast Approach To Coat Various Substrates with Poly(styrene-co-maleic anhydride) and Polyethyleneimine for Oil/Water Separation
A Facile and Fast Approach To Coat Various Substrates with Poly(styrene-co-maleic anhydride) and Polyethyleneimine for Oil/Water Separation
复制标题
一种简便快速的方法，用聚（苯乙烯-马来酸酐）和聚乙烯亚胺涂覆各种基材进行油/水分离
DOI：
10.1021/acs.iecr.9b03465
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发表时间：
2019-10-23
影响因子：
4.2
通讯作者：
Bai, Renbi
中科院分区：
文献类型：
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作者：
Zhang, Ganwei;Jia, Xinying;Bai, Renbi
聚苯乙烯-马来酸酐共聚物（PSMA）和聚乙烯亚胺（PEI）通过一种简单、快速的方法被用于涂覆各种基底，以改善其油/水分离性能。包括聚偏二氟乙烯（PVDF）微滤膜、棉织物、尼龙网和不锈钢网的基底最初用PSMA涂覆，随后用PEI涂覆以产生交联共聚物涂层。涂层过程可在30 min内完成。值得注意的是，共聚物涂层可赋予基底超亲水性和水下超疏油性，以及动态水下抗油污染性能。通过SEM、ATR-FTIR和XPS表征证实了交联共聚物在基材表面上的成功涂覆。所有的涂层基底都可以用于油/水混合物的分离，并且涂层PVDF微滤膜提供了优异的油/水乳状液分离性能。更重要的是，涂层可以承受暴露于酸性和碱性介质以及重复和长期使用。
Poly(styrene-co-maleic anhydride) (PSMA) and polyethyleneimine (PEI) are used to coat various substrates via a facile and fast process to improve their oil/water separation performances. Substrates including polyvinylidene fluoride (PVDF) microfilter membrane, cotton fabric, nylon mesh, and stainless steel mesh are initially coated with PSMA and subsequently with PEI to yield cross-linked copolymer coatings. The coating procedure can be finished in 30 min. Notably, the copolymer coating can endow the substrate with superhydrophilic and underwater superoleophobic properties, as well as dynamic underwater anti-oil-fouling performance. The successful coating of cross-linked copolymers onto the substrate surface was verified by SEM, ATR-FTIR, and XPS characterization. All of the coated substrates can be used for the separation of the oil/water mixture, and the coated PVDF microfilter membrane offers excellent oil/water emulsion separation performance. More importantly, the coatings can withstand exposure to acidic and basic media as well as repeated and long-term usage.