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Processable thermally conductive polyurethane composite fibers

Farajikhah, S, Van Amber, R, Sayyar, S, Shafei, S, Fay, CD, Beirne, S, Javadi, M, Wang, X, Innis, PC, Paull, B ORCID: 0000-0001-6373-6582 and Wallace, GG 2019 , 'Processable thermally conductive polyurethane composite fibers' , Macromolecular Materials and Engineering, vol. 304, no. 3 , pp. 1-7 , doi: 10.1002/mame.201800542.

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Abstract

The demand for wearable electronics has resulted in an increasing interest inthe development of functional fibers, with a specific focus upon the development of electrically conductive fibers incorporable into garments. However,the production of thermally conductive fibers for heat dissipation has beenlargely neglected. Owing to the very rapid development of miniaturized wearable electronics, there is an increasing need for the development of thermallyconductive fibers as heat sinks and thermal management processes. In thisstudy, thermally conductive but electrically insulating boron nitride nanopowder (BNNP) fillers are used to effectively enhance the thermal conductivityand mechanical properties of elastomeric polyurethane fibers. Thermal conductivity enhancement of more than 160% is achieved at very low loadings ofBNNP (less than 5 wt%) with an improvement in the mechanical properties ofthe unmodified fiber. These thermally conductive fibers are also incorporatedinto 3D textile structures as a proof of processability.

Item Type: Article
Authors/Creators:Farajikhah, S and Van Amber, R and Sayyar, S and Shafei, S and Fay, CD and Beirne, S and Javadi, M and Wang, X and Innis, PC and Paull, B and Wallace, GG
Keywords: boron nitride, composite fibers, fiber spinning, thermal conductivity, thermally conductive fibers
Journal or Publication Title: Macromolecular Materials and Engineering
Publisher: Wiley
ISSN: 1439-2054
DOI / ID Number: 10.1002/mame.201800542
Copyright Information:

© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

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