Carbonization of Polydopamine-Coating Layers on Boron Nitride for Thermal Conductivity Enhancement in Hybrid Polyvinyl Alcohol (PVA) Composites
Inspired by mussel adhesion proteins, boron nitride (BN) particles coated with homogeneous polydopamine (BNPDA) were prepared, and through an annealing process, a carbonized PDA layer on the surface of BN was obtained, which exhibited a nanocrystalline graphite-like structure. The effect of carboniz...
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MDPI AG
2020-06-01
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Online Access: | https://www.mdpi.com/2073-4360/12/6/1410 |
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author | Youjin Kim Jooheon Kim |
author_facet | Youjin Kim Jooheon Kim |
author_sort | Youjin Kim |
collection | DOAJ |
description | Inspired by mussel adhesion proteins, boron nitride (BN) particles coated with homogeneous polydopamine (BNPDA) were prepared, and through an annealing process, a carbonized PDA layer on the surface of BN was obtained, which exhibited a nanocrystalline graphite-like structure. The effect of carbonization of PDA coating layer on BN particles was characterized by various analytical techniques including SEM, TEM, Raman spectroscopy, and XPS. When the resulting particles were used as a thermally conductive filler for polyvinyl alcohol (PVA) composite films, enhanced thermal conductivity was observed compared to raw BN composite due to the ordered structure and improved solubility in water. Furthermore, the homogeneous dispersion of the filler and excellent flexibility of the modified composite film with 21 wt % filler may be attributed to compatibility with the PVA chain. As the whole fabrication process did not use toxic chemicals (mainly water was used as the solvent), it may contribute to green and sustainable chemistry. |
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issn | 2073-4360 |
language | English |
last_indexed | 2024-03-10T18:55:32Z |
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spelling | doaj.art-a439a8a7ca55417caeec2856f01e71642023-11-20T04:48:47ZengMDPI AGPolymers2073-43602020-06-01126141010.3390/polym12061410Carbonization of Polydopamine-Coating Layers on Boron Nitride for Thermal Conductivity Enhancement in Hybrid Polyvinyl Alcohol (PVA) CompositesYoujin Kim0Jooheon Kim1School of Chemical Engineering and Materials Science, Chung-Ang University, Seoul 156-756, KoreaSchool of Chemical Engineering and Materials Science, Chung-Ang University, Seoul 156-756, KoreaInspired by mussel adhesion proteins, boron nitride (BN) particles coated with homogeneous polydopamine (BNPDA) were prepared, and through an annealing process, a carbonized PDA layer on the surface of BN was obtained, which exhibited a nanocrystalline graphite-like structure. The effect of carbonization of PDA coating layer on BN particles was characterized by various analytical techniques including SEM, TEM, Raman spectroscopy, and XPS. When the resulting particles were used as a thermally conductive filler for polyvinyl alcohol (PVA) composite films, enhanced thermal conductivity was observed compared to raw BN composite due to the ordered structure and improved solubility in water. Furthermore, the homogeneous dispersion of the filler and excellent flexibility of the modified composite film with 21 wt % filler may be attributed to compatibility with the PVA chain. As the whole fabrication process did not use toxic chemicals (mainly water was used as the solvent), it may contribute to green and sustainable chemistry.https://www.mdpi.com/2073-4360/12/6/1410boron nitride (BN) 1polymer–matrix composites (PMCs) 2heat treatment 3polydopamine coatingthermal properties |
spellingShingle | Youjin Kim Jooheon Kim Carbonization of Polydopamine-Coating Layers on Boron Nitride for Thermal Conductivity Enhancement in Hybrid Polyvinyl Alcohol (PVA) Composites Polymers boron nitride (BN) 1 polymer–matrix composites (PMCs) 2 heat treatment 3 polydopamine coating thermal properties |
title | Carbonization of Polydopamine-Coating Layers on Boron Nitride for Thermal Conductivity Enhancement in Hybrid Polyvinyl Alcohol (PVA) Composites |
title_full | Carbonization of Polydopamine-Coating Layers on Boron Nitride for Thermal Conductivity Enhancement in Hybrid Polyvinyl Alcohol (PVA) Composites |
title_fullStr | Carbonization of Polydopamine-Coating Layers on Boron Nitride for Thermal Conductivity Enhancement in Hybrid Polyvinyl Alcohol (PVA) Composites |
title_full_unstemmed | Carbonization of Polydopamine-Coating Layers on Boron Nitride for Thermal Conductivity Enhancement in Hybrid Polyvinyl Alcohol (PVA) Composites |
title_short | Carbonization of Polydopamine-Coating Layers on Boron Nitride for Thermal Conductivity Enhancement in Hybrid Polyvinyl Alcohol (PVA) Composites |
title_sort | carbonization of polydopamine coating layers on boron nitride for thermal conductivity enhancement in hybrid polyvinyl alcohol pva composites |
topic | boron nitride (BN) 1 polymer–matrix composites (PMCs) 2 heat treatment 3 polydopamine coating thermal properties |
url | https://www.mdpi.com/2073-4360/12/6/1410 |
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