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首页> 外文期刊>Separation and Purification Technology >Air filtration and antimicrobial capabilities of electrospun PLA/PHB containing ionic liquid
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Air filtration and antimicrobial capabilities of electrospun PLA/PHB containing ionic liquid

机译：含静电纺丝PLA / PHB的离子液体的空气过滤和抗菌能力

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摘要

Polylactide/polyhydroxybutyrate (PLA/PHB) nanofibers were prepared by electrospinning and functionalized with different amounts of ammonium-based ionic liquid (IL) belonging to quaternary ammonium compounds (QACs) to obtain a fibrous mat with antimicrobial properties for aerosol particle filtration. The filtration performance of these biopolymer nanofiber mats was evaluated by measuring the filter penetration of sodium chloride (NaCl) aerosol particles ranging from 20 to 600 nm. These filtration test results showed that the quality factors remain unvaried with the addition of IL and depend mostly on the electrospinning time. The "multi-layering" method was adopted to fabricate highly efficient nanofiber filters with a greatly reduced pressure drop. A quantitative analysis of the antimicrobial activity is also presented. The results show that renewable materials, such as PLA blended with PHB, can be considered for biodegradable filters, in line with the future trend to develop eco-sustainable products. Adding QAC salt to the biopolymer blend combines these qualities with an innovative bactericidal nanomaterial. (C) 2015 Elsevier B.V. All rights reserved.
机译：聚乳酸/聚羟基丁酸酯（PLA / PHB）纳米纤维是通过电纺丝制备的，并用不同量的属于季铵化合物（QAC）的铵基离子液体（IL）进行功能化，从而获得具有抗菌特性的纤维垫，用于气溶胶颗粒过滤。这些生物聚合物纳米纤维垫的过滤性能通过测量氯化钠（NaCl）气溶胶颗粒在20至600 nm范围内的过滤渗透率来评估。这些过滤测试结果表明，质量因子随IL的添加而保持不变，并且主要取决于电纺丝时间。采用“多层”方法来制造具有大大降低的压降的高效纳米纤维过滤器。还提供了对抗菌活性的定量分析。结果表明，可再生材料，例如与PHB混合的PLA，可被视为可生物降解的过滤器，符合未来开发生态可持续产品的趋势。向生物聚合物混合物中添加QAC盐将这些品质与创新的杀菌纳米材料结合在一起。 （C）2015 Elsevier B.V.保留所有权利。

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