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Surface and Interface Engineering of Polymer Membranes

Authors： YANG Jing, XU Zhikang

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KeyWords： membrane, surface engineering, interfacial polymerization, microfiltration, ultrafiltration, nanofiltration, organic-inorganic composite, thin film composite

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2018,38(1):1-8

Abstract：

We suggest that the main purposes of surface and interface engineering for polymer membranes include: 1) improving the service properties of typical membranes by surface modification and functionalization, 2)endowing the membrane surface with different structures to the membrane bulk, 3) developing novel strategies for the fabrication of selective skin layers, 4) evaluating the relationship between the surface structure and the separation property, and 5) finally realizing the advancement and multi-functionalization of the membranes. In this review, we summarize the progresses on the biomimetic modification and the biomineralization of polypropylene microfiltration membranes. We also discuss the perspectives of the “controlled” construction of selective skin layers for thin film composite nanofiltration membranes. The biomimetic modification and biomineralization strategies can be used for the surface modification and functionalization of other membranes including inorganic ones. The developed mussel-inspired chemistry, including polydopamine and those co-depositing systems, are useful for the fabrication of selective skin layers for thin film composite nanofiltration membranes. These coatings can also be applied as interlayers to modulate the interfacial polymerization for thin film composite nanofiltration membranes with high water permeatiom flux.

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