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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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Article information


Submitted
25 Jul 2015
Accepted
10 Sep 2015
First published
18 Sep 2015

Nanoscale, 2015,7, 16899-16908
Article type
Paper
Author version available

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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