Thermal conductivity enhancement in electrospun poly(vinyl alcohol) and poly(vinyl alcohol)/cellulose nanocrystal composite nanofibers

The thermal conductivity enhancement of neat poly(vinyl alcohol) and poly(vinyl alcohol) (PVA)/cellulose nanocrystal (CNC) composite was attempted via electrospinning. The suspended microdevice technique was applied to measure the thermal conductivity of electrospun nanofibers (NFs). Neat PVA NFs an...

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Autores principales: Park, Yeongcheol, You, Myungil, Shin, Jihoon, Ha, Sumin, Kim, Dukeun, Heo, Min Haeng, Nah, Junghyo, Kim, Yoong Ahm, Seol, Jae Hun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6395720/
https://www.ncbi.nlm.nih.gov/pubmed/30816257
http://dx.doi.org/10.1038/s41598-019-39825-8
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author Park, Yeongcheol
You, Myungil
Shin, Jihoon
Ha, Sumin
Kim, Dukeun
Heo, Min Haeng
Nah, Junghyo
Kim, Yoong Ahm
Seol, Jae Hun
author_facet Park, Yeongcheol
You, Myungil
Shin, Jihoon
Ha, Sumin
Kim, Dukeun
Heo, Min Haeng
Nah, Junghyo
Kim, Yoong Ahm
Seol, Jae Hun
author_sort Park, Yeongcheol
collection PubMed
description The thermal conductivity enhancement of neat poly(vinyl alcohol) and poly(vinyl alcohol) (PVA)/cellulose nanocrystal (CNC) composite was attempted via electrospinning. The suspended microdevice technique was applied to measure the thermal conductivity of electrospun nanofibers (NFs). Neat PVA NFs and PVA/CNC NFs with a diameter of approximately 200 nm showed thermal conductivities of 1.23 and 0.74 W/m-K, respectively, at room temperature, which are higher than that of bulk PVA by factors of 6 and 3.5, respectively. Material characterization by Fourier transform infrared spectroscopy, differential scanning calorimetry, and thermogravimetric analysis confirmed that the thermal conductivity of the PVA/CNC NFs was enhanced by the reinforcement of their backbone rigidity, while that of the neat PVA NFs was attributed to the increase in their crystallinity that occurred during the electrospinning.
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spelling pubmed-63957202019-03-04 Thermal conductivity enhancement in electrospun poly(vinyl alcohol) and poly(vinyl alcohol)/cellulose nanocrystal composite nanofibers Park, Yeongcheol You, Myungil Shin, Jihoon Ha, Sumin Kim, Dukeun Heo, Min Haeng Nah, Junghyo Kim, Yoong Ahm Seol, Jae Hun Sci Rep Article The thermal conductivity enhancement of neat poly(vinyl alcohol) and poly(vinyl alcohol) (PVA)/cellulose nanocrystal (CNC) composite was attempted via electrospinning. The suspended microdevice technique was applied to measure the thermal conductivity of electrospun nanofibers (NFs). Neat PVA NFs and PVA/CNC NFs with a diameter of approximately 200 nm showed thermal conductivities of 1.23 and 0.74 W/m-K, respectively, at room temperature, which are higher than that of bulk PVA by factors of 6 and 3.5, respectively. Material characterization by Fourier transform infrared spectroscopy, differential scanning calorimetry, and thermogravimetric analysis confirmed that the thermal conductivity of the PVA/CNC NFs was enhanced by the reinforcement of their backbone rigidity, while that of the neat PVA NFs was attributed to the increase in their crystallinity that occurred during the electrospinning. Nature Publishing Group UK 2019-02-28 /pmc/articles/PMC6395720/ /pubmed/30816257 http://dx.doi.org/10.1038/s41598-019-39825-8 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Park, Yeongcheol
You, Myungil
Shin, Jihoon
Ha, Sumin
Kim, Dukeun
Heo, Min Haeng
Nah, Junghyo
Kim, Yoong Ahm
Seol, Jae Hun
Thermal conductivity enhancement in electrospun poly(vinyl alcohol) and poly(vinyl alcohol)/cellulose nanocrystal composite nanofibers
title Thermal conductivity enhancement in electrospun poly(vinyl alcohol) and poly(vinyl alcohol)/cellulose nanocrystal composite nanofibers
title_full Thermal conductivity enhancement in electrospun poly(vinyl alcohol) and poly(vinyl alcohol)/cellulose nanocrystal composite nanofibers
title_fullStr Thermal conductivity enhancement in electrospun poly(vinyl alcohol) and poly(vinyl alcohol)/cellulose nanocrystal composite nanofibers
title_full_unstemmed Thermal conductivity enhancement in electrospun poly(vinyl alcohol) and poly(vinyl alcohol)/cellulose nanocrystal composite nanofibers
title_short Thermal conductivity enhancement in electrospun poly(vinyl alcohol) and poly(vinyl alcohol)/cellulose nanocrystal composite nanofibers
title_sort thermal conductivity enhancement in electrospun poly(vinyl alcohol) and poly(vinyl alcohol)/cellulose nanocrystal composite nanofibers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6395720/
https://www.ncbi.nlm.nih.gov/pubmed/30816257
http://dx.doi.org/10.1038/s41598-019-39825-8
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