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Steady state electrospinning of uniform polyethersulfone nanofibers using a non-heated solvent mixture

机译:使用非加热溶剂混合物对均匀的聚醚砜纳米纤维进行稳态电纺

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摘要

Electrospinning is the most promising method for the large-scale production of nanofiber membranes. Multi-nozzle systems have already proven to be successful in producing polyamide nanofiber membranes suitable for water filtration. In this contribution, conditions for steady state electrospinning of polyethersulphone were investigated. Steady state electrospinning of PES was only possible for a limited number of electrospinning parameter combinations. Only a polymer concentration of 25 and 26?wt% resulted in defect-free nanofiber membranes. The solvent ratio of DMF:NMP can be varied from 95:5 (v:v%) to 85:15 (v:v%) to generate uniform nanofibers with average diameters varying from 300 to 730?nm all with relatively narrow standard deviation as low as 20?%. These results, thus, allow for a well-chosen set of electrospinning parameters for scaling up electrospinning of polyethersulphone nanofiber membranes.
机译:电纺丝是大规模生产纳米纤维膜的最有前途的方法。已经证明多喷嘴系统在生产适用于水过滤的聚酰胺纳米纤维膜方面是成功的。在这一贡献中,研究了聚醚砜稳态静电纺丝的条件。仅对于有限数量的电纺参数组合,PES的稳态电纺是可能的。只有聚合物浓度为25和26wt%才能形成无缺陷的纳米纤维膜。 DMF:NMP的溶剂比率可在95:5(v:v%)至85:15(v:v%)之间变化,以生成平均直径在300至730?nm之间的均一纳米纤维,且标准偏差相对较窄低至20%。因此,这些结果允许选择一组良好的电纺参数,以扩大聚醚砜纳米纤维膜的电纺规模。

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