3D printed filtration and separation devices with integrated membranes and no post-printing assembly
3D printed filtration and separation devices with integrated membranes and no post-printing assembly
复制标题
3D打印过滤和分离装置，带有集成膜，无需打印后组装
DOI：
10.1039/d3re00245d
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发表时间：
2024
影响因子：
3.9
通讯作者：
Clark M
中科院分区：
文献类型：
--
作者：
Clark M
增材制造或三维（3D）打印是用于制造反应器和化学处理设备的可访问、快速且用户友好的工具。在这里，我们报告了一种方法，用于打印过滤和分离装置使用熔融沉积建模（FDM），其中包括商业多孔膜。通过使用外源性膜，膜孔径和材料可以任意指定，从而在装置设计中具有更大的通用性。我们首次证明，无需印刷后组装即可创建完全可操作的整体设备，并通过制造和测试三种不同的设备来证明该方法的功效：死端过滤器，可以制成各种尺寸，并被证明可以完全去除异质混合物中的微米级颗粒;液-液分离器，其被示出为完全分离不混溶液体的分段流;和错流过滤装置，其显示出以3.4分钟的停留时间实现从水流中几乎完全去除染料。对于错流过滤装置，我们描述了一种新的“双面”打印技术，即塑料直接打印到膜的两侧，以确保膜完全粘合到3D打印体上。这里展示的设备范围突出了该方法的多功能性及其在需要多孔膜的化学加工应用中的潜力。
Additive manufacturing, or three-dimensional (3D) printing, is an accessible, quick, and user-friendly tool for fabricating reactors and chemical processing devices. Here we report a method for printing filtration and separation devices using fused-deposition modelling (FDM) which incorporate commercial porous membranes. By using exogenous membranes, membrane pore size and material can be arbitrarily specified allowing much greater versatility in device design. We show for the first time that fully operational monolithic devices can be created without need for post-printing assembly and demonstrate the efficacy of the approach by making and testing three distinct devices: dead-end filters, which can be made in a range of sizes and are shown to fully remove micron-sized particles from a heterogenous mixture; liquid–liquid separators, which are shown to completely separate segmented flows of immiscible liquids; and a cross-flow filtration device, which is shown to achieve near full dye removal from an aqueous stream with a residence time of 3.4 minutes. For the cross-flow filtration device we describe a new “double-sided” printing technique whereby the plastic is directly printed onto both sides of the membrane to ensure the membrane is fully bonded to the 3D printed body. The range of devices showcased here highlights the versatility of the approach and its potential for use in chemical processing applications that require porous membranes.