Co-deposition of tannic acid and diethlyenetriamine for surface hydrophilization of hydrophobic polymer membranes
Co-deposition of tannic acid and diethlyenetriamine for surface hydrophilization of hydrophobic polymer membranes
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DOI：
10.1016/j.apsusc.2015.11.015
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发表时间：
2016
影响因子：
6.7
通讯作者：
Xi Zhang;Pengfei Ren;Hao‐Cheng Yang;L. Wan;Zhi‐Kang Xu
中科院分区：
文献类型：
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作者：
Xi Zhang;Pengfei Ren;Hao‐Cheng Yang;L. Wan;Zhi‐Kang Xu
本文报道了一种通过单宁酸（TA）和二乙烯三胺（DETA）共沉积对工业聚合物膜进行表面改性的新方法。在聚丙烯、聚偏二氟乙烯和聚乙烯微滤膜表面制备无颗粒、超亲水和几乎无色的涂层。TA和DETA之间的交联在共沉积过程中起着至关重要的作用，以及TA在疏水膜表面上的粘附。共沉积后膜的表面润湿性和水渗透通量都得到了显著的改善。结果表明，TA和DETA的共沉积在疏水膜的表面改性方面具有很大的潜力。
We report a novel approach toward the surface modification of commercial polymer membranes via co-deposition of tannic acid (TA) and diethlyenetriamine (DETA). Particle-free, superhydrophilic, and almost colorless coatings are fabricated on the surfaces of polypropylene, poly(vinylidene fluoride), and poly(tetrafluoroethlene) microfiltration membranes. Cross-linking between TA and DETA plays a crucial role during the co-deposition process, as well as the adhesion of TA on the hydrophobic membrane surfaces. Both the surface wettability and water permeation flux are dramatically improved for the studied membranes after the co-deposition. The results indicate that co-deposition of TA and DETA is great potential for the surface modification of hydrophobic membranes.