This article presents a novel approach towards tackling the balance between filter efficiency and pressure drop by layering micro and nano fibres using melt and solution electrospinning. Polyamide fibre mats were fabricated by a prototype fibre printing apparatus, based on a combination of melt and solution electrospinning. Fibrous mats with favorable filtration performance characteristics were developed by optimizing the process parameters. The measurements were performed at a face velocity of 5.3 cm/s. High filtration quality factors (such as 0.068–0.085 Pa^-1 for PN₁ fraction) were reached due to low values of pressure drop (15.92–50.17 Pa). The filtration efficiencies ranged from 93.7 (PN₁) to 98.5% (PN₁₀). Higher ratios of nano-sub micrometer (<1 μm) to super micrometer (≥1 μm) fibres in the fibrous matrix were associated with the higher filtration quality factors.

本文提出了一种新颖的方法，可通过使用熔体和溶液电纺丝使微纤维和纳米纤维分层，从而解决过滤器效率与压降之间的平衡问题。聚酰胺纤维垫是由原型纤维印刷设备根据熔体和溶液电纺丝的组合​​制成的。通过优化工艺参数，开发出具有良好过滤性能特征的纤维毡。以5.3cm / s的面速度进行测量。由于压降值较低（15.92–50.17 Pa），因此达到了较高的过滤品质因数（例如PN ₁馏分的0.068–0.085 Pa ^-1）。过滤效率从93.7（PN ₁）到98.5％（PN ₁₀）。纤维基质中纳米亚微米级（<1μm）与超微米级（≥1μm）纤维的比率较高与较高的过滤品质因数有关。