Development of polyvinyl alcohol-based carbon nano fiber sheet for thermal interface material

Abstract Polyvinyl alcohol (PVA)-based carbon nanofiber (CNF) sheets are fabricated as an innovative thermal interface material (TIM), which is a potential substitute for traditional TIMs. Five types of PVA-based CNF sheets were fabricated at different mass ratios of PVA:vapor-grown carbon fiber (VG...

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Autores principales:	Jiangling Xiong, Siran Chen, Yongbum Choi, Kazuhiro Matsugi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2c2adecf6d8042389c343df8b2084fab
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spelling	oai:doaj.org-article:2c2adecf6d8042389c343df8b2084fab2021-12-02T16:34:59ZDevelopment of polyvinyl alcohol-based carbon nano fiber sheet for thermal interface material10.1038/s41598-021-96691-z2045-2322https://doaj.org/article/2c2adecf6d8042389c343df8b2084fab2021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96691-zhttps://doaj.org/toc/2045-2322Abstract Polyvinyl alcohol (PVA)-based carbon nanofiber (CNF) sheets are fabricated as an innovative thermal interface material (TIM), which is a potential substitute for traditional TIMs. Five types of PVA-based CNF sheets were fabricated at different mass ratios of PVA:vapor-grown carbon fiber (VGCF) (1:0.100, 1:0.070, 1:0.050, 1:0.030, 1:0.025). The thickness of the PVA-based CNF sheets was 30–50 µm, which was controlled by the amount of VGCF. The microstructure of the CNF sheets indicated that VGCFs were arranged in random directions inside the sheet, and PVA was formed as a membrane between two VGCFs. However, many pores were found to exist between the VGCFs. The porosity of the PVA-based CNF sheets decreased from 25 to 13% upon decreasing the mass ratio of VGCF from 43.38 to 16.13%. The density and Shore hardness of all CNF sheets were 1.03–1.15 × 106 g m−3 and 82.4–85.0 HS, respectively. The highest thermal conductivity, measured as the mass ratio of PVA:VGCF, was achieved at 1:0.05, with the in-plane thermal conductivity of the fabricated sheet being 14.3 W m−1 k−1.Jiangling XiongSiran ChenYongbum ChoiKazuhiro MatsugiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jiangling Xiong Siran Chen Yongbum Choi Kazuhiro Matsugi Development of polyvinyl alcohol-based carbon nano fiber sheet for thermal interface material
description	Abstract Polyvinyl alcohol (PVA)-based carbon nanofiber (CNF) sheets are fabricated as an innovative thermal interface material (TIM), which is a potential substitute for traditional TIMs. Five types of PVA-based CNF sheets were fabricated at different mass ratios of PVA:vapor-grown carbon fiber (VGCF) (1:0.100, 1:0.070, 1:0.050, 1:0.030, 1:0.025). The thickness of the PVA-based CNF sheets was 30–50 µm, which was controlled by the amount of VGCF. The microstructure of the CNF sheets indicated that VGCFs were arranged in random directions inside the sheet, and PVA was formed as a membrane between two VGCFs. However, many pores were found to exist between the VGCFs. The porosity of the PVA-based CNF sheets decreased from 25 to 13% upon decreasing the mass ratio of VGCF from 43.38 to 16.13%. The density and Shore hardness of all CNF sheets were 1.03–1.15 × 106 g m−3 and 82.4–85.0 HS, respectively. The highest thermal conductivity, measured as the mass ratio of PVA:VGCF, was achieved at 1:0.05, with the in-plane thermal conductivity of the fabricated sheet being 14.3 W m−1 k−1.
format	article
author	Jiangling Xiong Siran Chen Yongbum Choi Kazuhiro Matsugi
author_facet	Jiangling Xiong Siran Chen Yongbum Choi Kazuhiro Matsugi
author_sort	Jiangling Xiong
title	Development of polyvinyl alcohol-based carbon nano fiber sheet for thermal interface material
title_short	Development of polyvinyl alcohol-based carbon nano fiber sheet for thermal interface material
title_full	Development of polyvinyl alcohol-based carbon nano fiber sheet for thermal interface material
title_fullStr	Development of polyvinyl alcohol-based carbon nano fiber sheet for thermal interface material
title_full_unstemmed	Development of polyvinyl alcohol-based carbon nano fiber sheet for thermal interface material
title_sort	development of polyvinyl alcohol-based carbon nano fiber sheet for thermal interface material
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2c2adecf6d8042389c343df8b2084fab
work_keys_str_mv	AT jianglingxiong developmentofpolyvinylalcoholbasedcarbonnanofibersheetforthermalinterfacematerial AT siranchen developmentofpolyvinylalcoholbasedcarbonnanofibersheetforthermalinterfacematerial AT yongbumchoi developmentofpolyvinylalcoholbasedcarbonnanofibersheetforthermalinterfacematerial AT kazuhiromatsugi developmentofpolyvinylalcoholbasedcarbonnanofibersheetforthermalinterfacematerial
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Development of polyvinyl alcohol-based carbon nano fiber sheet for thermal interface material

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