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Electro-aerodynamic field aided needleless electrospinning
journal contribution
posted on 2018-06-08, 00:00 authored by Guilong Yan, Haitao Niu, Hua Zhou, Hong Wang, Hao Shao, Xueting Zhao, Tong LinAuxiliary fields have been used to enhance the performance of needle electrospinning. However, much less has been reported on how auxiliary fields affect needleless electrospinning. Herein, we report a novel needleless electrospinning technique that consists of an aerodynamic field and a second electric field. The second electric field is generated by setting two grounded inductive electrodes near the spinneret. The two auxiliary fields have to be applied simultaneously to ensure working of the electrospinning process. A synergistic effect was observed between inductive electrode and airflow. The aerodynamic-electric auxiliary field was found to significantly increase fiber production rate (4.5 g h-1), by 350% in comparison to the setup without auxiliary field (1.0 g h-1), whereas it had little effect on fiber diameter. The auxiliary fields allow running needleless electrospinning at an applied voltage equivalent to that in needle electrospinning (e.g. 10-30 kV). The finite element analyses of electric field and airflow field verify that the inductive electrodes increase electric field strength near the spinneret, and the airflow assists in fiber deposition. This novel needleless electrospinning may be useful for development of high-efficiency, low energy-consumption nanofiber production systems.
History
Journal
NanotechnologyVolume
29Issue
23Article number
235302Publisher
IOP PublishingLocation
Bristol, Eng.Publisher DOI
eISSN
1361-6528Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2018, IOP PublishingUsage metrics
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No categories selectedKeywords
Science & TechnologyTechnologyPhysical SciencesNanoscience & NanotechnologyMaterials Science, MultidisciplinaryPhysics, AppliedScience & Technology - Other TopicsMaterials SciencePhysicsneedleless electrospinningauxiliary fieldairflowslotnanofiberFIBROUS POLYMER ELECTROLYTESCONICAL WIRE COILNANOFIBERSSPINNERET
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