A novel lotus‐leaf‐inspired superhydrophobic poly(lactic acid) (PLA) porous membrane was fabricated for oil‐water separation based on fused deposition modeling three‐dimensional printing and subsequent chemical etching and the decoration of polystyrene nanospheres. A superhydrophobic PLA fractal surface with a water contact angle of 151.7° and low water adhesion force of 21.8 μN was achieved. The membrane pore size could be easily adjusted from 40 to 600 μm via a computer‐aided design program to optimize separation performance. The maximal oil‐water separation efficiency of 99.4% was achieved with a pore size of 250 μm, which also exhibited a high flux of 60 kL m⁻² h⁻¹. © 2018 American Institute of Chemical Engineers AIChE J, 64: 3700–3708, 2018

中文翻译：

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三维印刷生物启发型超疏水PLA膜，用于油水分离

基于熔融沉积建模三维印刷，随后的化学蚀刻以及聚苯乙烯纳米球的装饰，制造了一种新型的荷叶启发型超疏水聚乳酸（PLA）多孔膜，用于油水分离。获得了具有151.7°的水接触角和21.8μN的低水附着力的超疏水PLA分形表面。通过计算机辅助设计程序可以轻松地将膜孔径从40调整为600μm，以优化分离性能。孔径为250μm时，最大油水分离效率达到99.4％，并且还表现出60 kL m ^-2 h ^-1的高通量。©2018美国化学工程师学会AIChE J，64：3700-3708，2018