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Hot electrospinning of polyurethane fibres

Nangrejo, M; Bragman, F; Ahmad, Z; Stride, E; Edirisinghe, M; (2012) Hot electrospinning of polyurethane fibres. Materials Letters , 68 482 - 485. 10.1016/j.matlet.2011.11.019. Green open access

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Several polyurethane solutions of the same composition but varying temperature (25, 50, 75 and 100 °C), were subjected to an electric field whilst flowing through a conducting nozzle. All other typical electrospinning parameters (applied voltage, medium infusion rate and collecting distance) were kept constant. The effects of processing solution temperature on the resulting fibre morphologies were assessed using optical and scanning electron microscopy, and were also correlated with solution properties (surface tension, viscosity, electrical conductivity and density). It was observed that increasing the solution temperature leads to a significant reduction in the mean diameter and size distribution of the resulting fibres. Increasing the temperature from 25 to 100 °C enabled the reduction of the mean fibre diameter from 2.5 μm to 1.2 μm. The Tm value of resulting fibres generally increased as the solution processing temperature increased suggesting a change to the orientation of polymer chains in the overall structure.

Type: Article
Title: Hot electrospinning of polyurethane fibres
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.matlet.2011.11.019
Publisher version: http://dx.doi.org/10.1016/j.matlet.2011.11.019
Language: English
Additional information: This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Keywords: Polymer, Electrohydrodynamic, Fibres, Hot-electrospinning
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Security and Crime Science
URI: https://discovery.ucl.ac.uk/id/eprint/1346275
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