Large-Scale Nanofiber Manufacturing| An intelligent nanofiber membrane withdual-asymmetric wettability enablingSpontaneous directional water and oiltransportation in opposite direction 2025-05-16
With continuous socioeconomic development, oil-water separation has become essential in many fields, demanding processes with low energy consumption, high efficiency, and high speed. In recent years, fiber membrane materials with special wettability (e.g., superhydrophobic or superoleophilic) have attracted widespread scientific attention and found broad applications.Directional liquid transport textile materials (also called "unidirectional liquid transport", referring to spontaneous unidirectional liquid transport through membrane thickness) represent emerging smart materials with excellent prospects in oil/water collection and directional fluid transport. However, existing unidirectional materials only transport specific liquids unidirectionally (either water or oil), limiting their use in complex mixtures like emulsions. A material capable of simultaneously transporting water and oil in opposite directions ("bidirectional liquid transport") would enable two-way separation for more