Super-wetting materials are widely used to treat oil–water mixed sewage. However, there are still great challenges in manufacturing strong and durable super-wetting materials for the separation of complex emulsions. A method for the simple preparation of durable, low-cost, superhydrophobic, and superlipophilic 3D materials is reported in this paper. Superhydrophobic metal rubber, MR–C, was successfully prepared by depositing low-cost candle soot on a metal rubber workblank, and then stamping and dipping the soot-coated rubber workblank in a polydimethylsiloxane solution. MR–C effectively separated a variety of water-in-oil emulsions driven by gravity. In addition, because the 3D porous material acted as a protective layer, MR–C could still be used to efficiently separate emulsions even after the sample was subjected to a wear test under 500 N loads. After being immersed in a corrosive environment for a long time, the surface of the material maintained its stable superhydrophobic properties. The stable and efficient separation efficiency and strong mechanical durability ensure the reusability of MR–C in purification, and it shows great potential in oily wastewater treatment applications.

中文翻译：

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一种用于乳化分离的耐用低成本承重三维多孔材料的简单制备

超润湿材料广泛用于处理油水混合污水。然而，在制造用于分离复杂乳液的坚固耐用的超润湿材料方面仍然存在巨大挑战。本文报道了一种简单制备耐用、低成本、超疏水和超亲油 3D 材料的方法。超疏水金属橡胶 MR-C 是通过将低成本的蜡烛烟灰沉积在金属橡胶工作坯上，然后将涂有烟灰的橡胶工作坯冲压并浸入聚二甲基硅氧烷溶液中而成功制备的。MR-C 有效地分离了重力驱动的各种油包水乳液。此外，由于 3D 多孔材料起到了保护层的作用，即使样品在 500 N 载荷下进行磨损试验，MR-C 仍可用于有效分离乳液。长时间浸泡在腐蚀环境中后，材料表面仍保持稳定的超疏水特性。稳定高效的分离效率和强大的机械耐久性保证了MR-C在净化中的可重复使用性，在含油废水处理应用中显示出巨大的潜力。