NDLI: Hollow carbon microfibres fabricated using coaxial centrifugal spinning

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Volume 11 (2016) : Issue 1, Jan

The Journal of Engineering

Hollow carbon microfibres fabricated using coaxial centrifugal spinning

Content Provider	IET Digital Library
Author	Xu, Wei Xia, Lei Zhou, Xing hai Xi, Peng Cheng, Bo wen Liang, Yu xia
Abstract	A novel method for preparing coaxial polyacrylonitrile (PAN)/polyvinyl pyrrolidone (PVP) microfibres is proposed. Further, the obtained composite fibres are subsequently processed using pre-oxidation and carbonisation treatments in order to obtain hollow carbon microfibres. The effects of different respective PVP and PAN concentrations in the inner and outer solutions (the solutions injected into the inner and outer centrifugal tubes, respectively) on the product morphology are discussed. It is found that hollow carbon microfibres can only be fabricated for concurrent inner PVP and outer PAN solution concentrations of 14–17 and 13–16 wt%, respectively. If either of the solution concentrations is too low, droplets are formed, whereas the spinneret becomes blocked and cannot spin if either of these concentrations is too high. The diameters of the coaxial fibres and hollow carbon fibres can be controlled between 3 and 10 μm. This novel coaxial centrifugal spinning strategy can potentially be applied in the rapid fabrication of coaxial and hollow fibres.
Starting Page	74
Ending Page	76
Page Count	3
Volume Number	11
e-ISSN	17500443
Issue Number	Issue 2, Feb (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/mnl/11/2
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/mnl.2015.0346
Journal	Micro & Nano Letters
Publisher Date	2016-02-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Carbon Fibres Carbonisation Treatment Coaxial Centrifugal Spinning Coaxial Polyacrylonitrile-polyvinyl Pyrrolidone Microfibres Composite Fibres Hollow Carbon MicroFibre Material Preparation Method of Preparation of Material Oxidation Preoxidation Treatment Product Morphology Size 3 Mum to 10 Mum Solution Concentrations
Content Type	Text
Resource Type	Article

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