Investigation of polyacrylonitrile electrospun nanofibres morphology as a function of polymer concentration, viscosity and Berry number

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Investigation of polyacrylonitrile electrospun nanofibres morphology as a function of polymer concentration, viscosity and Berry number

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© The Institution of Engineering and Technology
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This study focuses on using curve fitting methodology and power law equation to analyse polyacrylonitrile (PAN) nanofibres morphology synthesised by electrospinning. The effects of polymer solution properties (i.e. polymer concentration, viscosity and Berry number) on electrospinnability of the PAN/DMF (N,N-dimethylformamide) solutions are investigated. For the polymer electrospun from concentrated solution (3.5<Be<7.5), the nanofibres form without beads. The relationship between solution viscosity and its concentration is in the form: η=0.0205C4.16, the relation between the diameter of electrospun the PAN nanofibres and solution concentration is in the form: d=0.0326C3.45, and the relationship between the nanofibres diameter and solution viscosity is in the form: d=0.834η0.827.

Inspec keywords: nanofabrication; curve fitting; polymer fibres; nanofibres; electrospinning; viscosity; polymer solutions

Other keywords: power law equation; polymer concentration; polyacrylonitrile-N,N-dimethylformamide solutions; electrospinning; polyacrylonitrile nanofibres morphology; polymer solution properties; curve fitting method; viscosity; Berry number

Subjects: Methods of nanofabrication and processing; Viscosity of liquids; diffusive momentum transport; Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials; Preparation of organic materials, polymers and plastics

References

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