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Experimental investigation on flow modes of electrospinning

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Abstract

Electrospinning experiments are performed by using a set of experimental apparatus, a stroboscopic system is adopted for capturing instantaneous images of the conejet configuration. The cone and the jet of aqueous solutions of polyethylene oxide (PEO) are formed from an orifice of a capillary tube under the electric field. The viscoelastic constitutive relationship of the PEO solution is measured and discussed. The phenomena owing to the jet instability are described, five flow modes and corresponding structures are obtained with variations of the fluid flow rate Q, the electric potential U and the distance h from the orifice of the capillary tube to the collector. The flow modes of the cone-jet configuration involves the steady bending mode, the rotating bending mode, the swinging rotating mode, the blurring bending mode and the branching mode. Regimes in the Q-U plane of the flow modes are also obtained. These results may provide the fundamentals to predict the operating conditions expected in practical applications.

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Authors and Affiliations

  1. Department of Modern Mechanics, University of Science and Technology of China, 230026, Hefei, China

    Ting Si, Guang-Bin Li, Xing-Xing Chen, Rui-Jun Tian & Xie-Zhen Yin

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  1. Ting Si
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  2. Guang-Bin Li
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  3. Xing-Xing Chen
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  4. Rui-Jun Tian
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  5. Xie-Zhen Yin
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Corresponding author

Correspondence to Ting Si.

Additional information

The project was supported by the National Natural Science Foundation of China Project (11002139) and the China Postdoctoral Science Foundation (20100470854).

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Si, T., Li, GB., Chen, XX. et al. Experimental investigation on flow modes of electrospinning. Acta Mech Sin 28, 644–652 (2012). https://doi.org/10.1007/s10409-012-0101-z

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  • DOI: https://doi.org/10.1007/s10409-012-0101-z

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