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Thermally conductive polyamide 6/carbon filler composites based on a hybrid filler system

We explored the use of a hybrid filler consisting of graphite nanoplatelets (GNPs) and single walled carbon nanotubes (SWCNTs) in a polyamide 6 (PA 6) matrix. The composites containing PA 6, powdered GNP, and SWCNT were melt-processed and the effect of filler content in the single filler and hybrid...

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Autores principales: Ha, Sung Min, Kwon, O Hwan, Oh, Yu Gyeong, Kim, Yong Seok, Lee, Sung-Goo, Won, Jong Chan, Cho, Kwang Soo, Kim, Byoung Gak, Yoo, Youngjae
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Taylor & Francis 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5069987/
https://www.ncbi.nlm.nih.gov/pubmed/27877843
http://dx.doi.org/10.1088/1468-6996/16/6/065001
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author Ha, Sung Min
Kwon, O Hwan
Oh, Yu Gyeong
Kim, Yong Seok
Lee, Sung-Goo
Won, Jong Chan
Cho, Kwang Soo
Kim, Byoung Gak
Yoo, Youngjae
author_facet Ha, Sung Min
Kwon, O Hwan
Oh, Yu Gyeong
Kim, Yong Seok
Lee, Sung-Goo
Won, Jong Chan
Cho, Kwang Soo
Kim, Byoung Gak
Yoo, Youngjae
author_sort Ha, Sung Min
collection PubMed
description We explored the use of a hybrid filler consisting of graphite nanoplatelets (GNPs) and single walled carbon nanotubes (SWCNTs) in a polyamide 6 (PA 6) matrix. The composites containing PA 6, powdered GNP, and SWCNT were melt-processed and the effect of filler content in the single filler and hybrid filler systems on the thermal conductivity of the composites was examined. The thermal diffusivities of the composites were measured by the standard laser flash method. Composites containing the hybrid filler system showed enhanced thermal conductivity with values as high as 8.8 W (m · K)(−1), which is a 35-fold increase compared to the thermal conductivity of pure PA 6. Thermographic images of heat conduction and heat release behaviors were consistent with the thermal conductivity results, and showed rapid temperature jumps and drops, respectively, for the composites. A composite model based on the Lewis–Nielsen theory was developed to treat GNP and SWCNT as two separate types of fillers. Two approaches, the additive and multiplicative approaches, give rather good quantitative agreement between the predicted values of thermal conductivity and those measured experimentally.
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spelling pubmed-50699872016-11-22 Thermally conductive polyamide 6/carbon filler composites based on a hybrid filler system Ha, Sung Min Kwon, O Hwan Oh, Yu Gyeong Kim, Yong Seok Lee, Sung-Goo Won, Jong Chan Cho, Kwang Soo Kim, Byoung Gak Yoo, Youngjae Sci Technol Adv Mater Papers We explored the use of a hybrid filler consisting of graphite nanoplatelets (GNPs) and single walled carbon nanotubes (SWCNTs) in a polyamide 6 (PA 6) matrix. The composites containing PA 6, powdered GNP, and SWCNT were melt-processed and the effect of filler content in the single filler and hybrid filler systems on the thermal conductivity of the composites was examined. The thermal diffusivities of the composites were measured by the standard laser flash method. Composites containing the hybrid filler system showed enhanced thermal conductivity with values as high as 8.8 W (m · K)(−1), which is a 35-fold increase compared to the thermal conductivity of pure PA 6. Thermographic images of heat conduction and heat release behaviors were consistent with the thermal conductivity results, and showed rapid temperature jumps and drops, respectively, for the composites. A composite model based on the Lewis–Nielsen theory was developed to treat GNP and SWCNT as two separate types of fillers. Two approaches, the additive and multiplicative approaches, give rather good quantitative agreement between the predicted values of thermal conductivity and those measured experimentally. Taylor & Francis 2015-11-05 /pmc/articles/PMC5069987/ /pubmed/27877843 http://dx.doi.org/10.1088/1468-6996/16/6/065001 Text en © 2015 National Institute for Materials Science http://creativecommons.org/licenses/by/3.0/ Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence (http://creativecommons.org/licenses/by/3.0) . Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
spellingShingle Papers
Ha, Sung Min
Kwon, O Hwan
Oh, Yu Gyeong
Kim, Yong Seok
Lee, Sung-Goo
Won, Jong Chan
Cho, Kwang Soo
Kim, Byoung Gak
Yoo, Youngjae
Thermally conductive polyamide 6/carbon filler composites based on a hybrid filler system
title Thermally conductive polyamide 6/carbon filler composites based on a hybrid filler system
title_full Thermally conductive polyamide 6/carbon filler composites based on a hybrid filler system
title_fullStr Thermally conductive polyamide 6/carbon filler composites based on a hybrid filler system
title_full_unstemmed Thermally conductive polyamide 6/carbon filler composites based on a hybrid filler system
title_short Thermally conductive polyamide 6/carbon filler composites based on a hybrid filler system
title_sort thermally conductive polyamide 6/carbon filler composites based on a hybrid filler system
topic Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5069987/
https://www.ncbi.nlm.nih.gov/pubmed/27877843
http://dx.doi.org/10.1088/1468-6996/16/6/065001
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