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首页> 美国卫生研究院文献>Polymers >3D Printing of an Oil/Water Mixture Separator with In Situ Demulsification and Separation
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3D Printing of an Oil/Water Mixture Separator with In Situ Demulsification and Separation

机译：具有原位破乳和分离功能的油/水混合物分离器的3D打印

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Currently, many meshes, membranes, and fabrics with extreme wettability of superhydrophobicity/superoleophilicity, or superhydrophilicity and underwater superoleophobicity are promising candidates for oil/water mixture separation. Nevertheless, a facile yet effective way to design and fabricate porous mesh still remains challenging. In this work, fused deposition modeling (FDM) 3D printing of Fe/polylactic acid (PLA) composites was employed to fabricate superhydrophilic and underwater superoleophobic mesh (S-USM) with hydrogel coatings via the surface polymerization of Fe(II)-mediated redox reaction. In addition, salt of aluminum chloride was incorporated within the hydrogel coating, which was attributed to strengthening the demulsification of oil-in-water emulsions, resulting in efficient separation of oil-in-water mixtures. The S-USM was efficient for a wide range of oil-in-water mixtures, such as dodecane, diesel, vegetable oil, and even crude oil, with a separation efficiency of up to 85%. In this study, the flexible design and fabrication of 3D printing were used for the facile creation of spherical oil skimmers with hydrogel coatings that were capable of removing the floating oil. Most importantly, this work is expected to promote post-treatment processes using 3D printing as a new manufacturing technology and, in this way, a series of devices of specific shape and function will be expanded to satisfy desired requirements and bring great convenience to personal life.
机译：当前，许多具有超疏水性/超亲油性，或超亲水性和水下超疏油性的极高润湿性的网，膜和织物是油/水混合物分离的有希望的候选者。然而，设计和制造多孔网的简便而有效的方法仍然具有挑战性。在这项工作中，Fe /聚乳酸（PLA）复合材料的熔融沉积建模（FDM）3D打印被用于通过Fe（II）介导的氧化还原的表面聚合来制造具有水凝胶涂层的超亲水性和水下超疏油性网状结构（S-USM）反应。另外，氯化铝的盐被掺入到水凝胶涂层中，这归因于加强水包油乳液的反乳化作用，从而导致有效分离水包油混合物。 S-USM可有效处理多种水包油混合物，例如十二烷，柴油，植物油，甚至原油，分离效率高达85％。在这项研究中，采用3D打印的灵活设计和制造方法来轻松创建带有水凝胶涂层的球形除油器，该油膜能够去除浮油。最重要的是，这项工作有望促进使用3D打印作为一种新制造技术的后处理过程，这样一来，一系列具有特定形状和功能的设备将得到扩展，以满足所需的要求并给个人生活带来极大的便利。

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