期刊
MACROMOLECULAR MATERIALS AND ENGINEERING
卷 307, 期 10, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mame.202200238
关键词
affinity membranes; dispersed polymers; electrospun membranes; filtration; nanomaterials; paints
资金
- Bavarian State Ministry of the Environment and Consumer Protection [TNT01NaT-72524]
- German Research Foundation [CRC 1357, 391977956]
- KeyLab Electron and Optical Microscopy of the Bavarian Polymer Institute (BPI)
- Projekt DEAL
Micro- and nanosized plastics as persistent anthropogenic pollutants have attracted increasing attention in recent years. Electrospun membranes, with their exceptional properties, have shown great potential in filtering various paint components effectively, demonstrating high potential for future environmental pollution filtration applications.
Micro- and nanosized plastics as persistent anthropogenic pollutants have attracted more and more attention in recent years. A source of nanoparticles is, for example, water-borne dispersion paint, which consists of a variety of different materials with potential adverse effects on living systems. Therefore, a rising challenge becomes apparent to investigate remediation strategies for environmental media. This problem is addressed by utilizing electrospun membranes for filtration applications because of their outstanding properties, such as their high surface-to-volume ratio and ease of functionalization. The electrospun membranes are able to successfully filter different paint components, such as titanium dioxide and polyacrylate nanoparticles, as well as dispersed polymers and calcium carbonate microparticles. Besides the known size-exclusion mechanism, the membranes featured extraordinary properties, such as effective separation of components smaller than the pore size of the electrospun membranes. This property occurs due to the fiber surface functionalization and enables not only filtration of nanosized or dissolved mater at high filtration efficiencies up to 100% but also at a very low operating pressure. This combination of filter material properties cannot be achieved by conventional nanofiltration membranes and thus, demonstrates the high potential of electrospun membranes for the application in filtration for future environmental pollutants.
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