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Polymers
Volume 11
Issue 5
10.3390/polym11050823
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Article

Copper and Nickel Coating of Carbon Fiber for Thermally and Electrically Conductive Fiber Reinforced Composites

by
Simon Bard
*,
Florian Schönl
,
Martin Demleitner
and
Volker Altstädt
Department of Polymer Engineering, University of Bayreuth, Universitätsstr. 30, 95444 Bayreuth, Germany
*
Author to whom correspondence should be addressed.
Polymers 2019, 11(5), 823; https://doi.org/10.3390/polym11050823
Submission received: 3 April 2019 / Revised: 26 April 2019 / Accepted: 30 April 2019 / Published: 7 May 2019
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Abstract

In this paper, the thermal and electrical conductivity and mechanical properties of fiber reinforced composites produced from nickel- and copper-coated carbon fibers compared to uncoated fibers are presented. The carbon fibers were processed by our prepreg line and cured to laminates. In the fiber direction, the thermal conductivity doubled from ~3 W/mK for the uncoated fiber, to ~6 W/mK for the nickel, and increased six times to ~20 W/mK for the copper-coated fiber for a fiber volume content of ~50 vol %. Transverse to the fiber, the thermal conductivity increased from 0.6 W/mK (uncoated fiber) to 0.9 W/mK (nickel) and 2.9 W/mK (copper) at the same fiber content. In addition, the electrical conductivity could be enhanced to up to ~1500 S/m with the use of the nickel-coated fiber. We showed that the flexural strength and modulus were in the range of the uncoated fibers, which offers the possibility to use them for lightning strike protection, for heatsinks in electronics or other structural heat transfer elements.
Keywords: Thermal conductivity; prepreg; carbon fiber; nickel coating; copper coating; flexural strength Thermal conductivity; prepreg; carbon fiber; nickel coating; copper coating; flexural strength
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MDPI and ACS Style

Bard, S.; Schönl, F.; Demleitner, M.; Altstädt, V. Copper and Nickel Coating of Carbon Fiber for Thermally and Electrically Conductive Fiber Reinforced Composites. Polymers 2019, 11, 823. https://doi.org/10.3390/polym11050823

AMA Style

Bard S, Schönl F, Demleitner M, Altstädt V. Copper and Nickel Coating of Carbon Fiber for Thermally and Electrically Conductive Fiber Reinforced Composites. Polymers. 2019; 11(5):823. https://doi.org/10.3390/polym11050823

Chicago/Turabian Style

Bard, Simon, Florian Schönl, Martin Demleitner, and Volker Altstädt. 2019. "Copper and Nickel Coating of Carbon Fiber for Thermally and Electrically Conductive Fiber Reinforced Composites" Polymers 11, no. 5: 823. https://doi.org/10.3390/polym11050823

APA Style

Bard, S., Schönl, F., Demleitner, M., & Altstädt, V. (2019). Copper and Nickel Coating of Carbon Fiber for Thermally and Electrically Conductive Fiber Reinforced Composites. Polymers, 11(5), 823. https://doi.org/10.3390/polym11050823

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