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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Main Authors: Youjin Kim, Jooheon Kim
Format: Article
Language:English
Published: MDPI AG 2020-06-01
Series:Polymers
Subjects:
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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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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