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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN 印刷: 2152-5102
ISSN オンライン: 2152-5110

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International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v38.i6.10
pages 479-488

Effect of Solution Concentration on Jet Stretching of Electrospinning PVA Nanofiber

Jia Lin
Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University Shanghai, China
Xiaohong Qin
Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University Shanghai, China

要約

A charged polymer jet may be accelerated and stretched by an external electric field, and this process is relevant to electrospinning for making nanofibers. The stretching of an electrified jet is governed by the interplay among electrostatics, fluid mechanics and rheology. In this paper, polyvinylalcohol (PVA) was used to study the effect of solution concentration on the variation of jet diameter with axial coordinate before and after the onset of whipping instability during electro-spinning. Jet diameters at different points were measured by optical microscope. The result indicated that solution concentration had little influence on jet stretching rate in electrospinning.


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