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Issue 40, 2015
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Thermal conductivity of electrospun polyethylene nanofibers

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Abstract

We report on the structure-thermal transport property relation of individual polyethylene nanofibers fabricated by electrospinning with different deposition parameters. Measurement results show that the nanofiber thermal conductivity depends on the electric field used in the electrospinning process, with a general trend of higher thermal conductivity for fibers prepared with stronger electric field. Nanofibers produced at a 45 kV electrospinning voltage and a 150 mm needle-collector distance could have a thermal conductivity of up to 9.3 W m−1 K−1, over 20 times higher than the typical bulk value. Micro-Raman characterization suggests that the enhanced thermal conductivity is due to the highly oriented polymer chains and enhanced crystallinity in the electrospun nanofibers.

Graphical abstract: Thermal conductivity of electrospun polyethylene nanofibers

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Publication details

The article was received on 25 Jul 2015, accepted on 10 Sep 2015 and first published on 18 Sep 2015


Article type: Paper
DOI: 10.1039/C5NR04995D
Citation: Nanoscale, 2015,7, 16899-16908
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    Thermal conductivity of electrospun polyethylene nanofibers

    J. Ma, Q. Zhang, A. Mayo, Z. Ni, H. Yi, Y. Chen, R. Mu, L. M. Bellan and D. Li, Nanoscale, 2015, 7, 16899
    DOI: 10.1039/C5NR04995D

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