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Using chitosan as a thickener for electrospinning dilute PVA solutions to improve fibre uniformity
journal contribution
posted on 2006-08-14, 00:00 authored by Tong Lin, Jian Fang, Hong WangHong Wang, T Cheng, Xungai WangChitosan was added to PVA aqueous solutions as a thickener to improve the electrospinning process. The presence of a small amount of chitosan considerably improved the uniformity of as-spun nanofibres. This improvement is attributed to its significant effect on the solution viscosity and conductivity, with only a slight impact on the surface tension. The concentration of the PVA required to produce bead-free and uniform nanofibres was reduced with the increase in chitosan concentration. The chitosan thickener suppressed the jet break-up and facilitated the jet stretching so that fine and uniform fibres could be electrospun even from a dilute PVA solution.
History
Journal
NanotechnologyVolume
17Pagination
3718 - 3723Publisher
IOP PublishingLocation
Bristol, EnglandPublisher DOI
ISSN
0957-4484eISSN
1361-6528Language
engNotes
Reproduced with the specific permission of the copyright owner.Publication classification
C1 Refereed article in a scholarly journalCopyright notice
2006, IOP Publishing LtdUsage metrics
Categories
No categories selectedKeywords
electrospinningnanofibrenanotechnologyfibre scienceScience & TechnologyTechnologyPhysical SciencesNanoscience & NanotechnologyMaterials Science, MultidisciplinaryPhysics, AppliedScience & Technology - Other TopicsMaterials SciencePhysicsPOLY(ETHYLENE OXIDE)POLYMER NANOFIBERSPOLYVINYL-ALCOHOLMISCIBILITYPOLYACRYLONITRILEMORPHOLOGYSOLVENTJET