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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 Wang, T Cheng, Xungai Wang
Chitosan 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

Nanotechnology

Volume

17

Pagination

3718 - 3723

Publisher

IOP Publishing

Location

Bristol, England

ISSN

0957-4484

eISSN

1361-6528

Language

eng

Notes

Reproduced with the specific permission of the copyright owner.

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2006, IOP Publishing Ltd