Improvement of the Heat-Dissipating Performance of Powder Coating with Graphene
In this study, the epoxy powder was blended with graphene to improve its thermal conductivity and heat dissipation efficiency. The thermal conductivity of the graphene-loaded coating was increased by 167 folds. In addition, the emissivity of the graphene-loaded coating was 0.88. The epoxy powder was...
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doaj-e470769a126e42b6af4510080dd937d32020-11-25T03:12:09ZengMDPI AGPolymers2073-43602020-06-01121321132110.3390/polym12061321Improvement of the Heat-Dissipating Performance of Powder Coating with GrapheneFei Kung0Ming-Chien Yang1Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, TaiwanDepartment of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, TaiwanIn this study, the epoxy powder was blended with graphene to improve its thermal conductivity and heat dissipation efficiency. The thermal conductivity of the graphene-loaded coating was increased by 167 folds. In addition, the emissivity of the graphene-loaded coating was 0.88. The epoxy powder was further coated on aluminum plate through powder coating process in order to study the effect on the performance of heat dissipation. In the case of natural convective heat transfer, the surface temperature of the graphene-loaded coated aluminum plate was 96.7 °C, which was 27.4 °C lower than that of bare aluminum plate (124.1 °C) at a heat flux of 16 W. In the case of forced convective heat transfer, the surface temperature decreased from 77.8 and 68.3 °C for a heat flux of 16 W. The decrease in temperature can be attributed to the thermal radiation. These results show that the addition of graphene nanoparticles in the coating can increase the emissivity of the aluminum plate and thus improving the heat dissipation.https://www.mdpi.com/2073-4360/12/6/1321graphenepowder coatingthermal conductivityheat dissipationthermal radiation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Fei Kung Ming-Chien Yang |
spellingShingle |
Fei Kung Ming-Chien Yang Improvement of the Heat-Dissipating Performance of Powder Coating with Graphene Polymers graphene powder coating thermal conductivity heat dissipation thermal radiation |
author_facet |
Fei Kung Ming-Chien Yang |
author_sort |
Fei Kung |
title |
Improvement of the Heat-Dissipating Performance of Powder Coating with Graphene |
title_short |
Improvement of the Heat-Dissipating Performance of Powder Coating with Graphene |
title_full |
Improvement of the Heat-Dissipating Performance of Powder Coating with Graphene |
title_fullStr |
Improvement of the Heat-Dissipating Performance of Powder Coating with Graphene |
title_full_unstemmed |
Improvement of the Heat-Dissipating Performance of Powder Coating with Graphene |
title_sort |
improvement of the heat-dissipating performance of powder coating with graphene |
publisher |
MDPI AG |
series |
Polymers |
issn |
2073-4360 |
publishDate |
2020-06-01 |
description |
In this study, the epoxy powder was blended with graphene to improve its thermal conductivity and heat dissipation efficiency. The thermal conductivity of the graphene-loaded coating was increased by 167 folds. In addition, the emissivity of the graphene-loaded coating was 0.88. The epoxy powder was further coated on aluminum plate through powder coating process in order to study the effect on the performance of heat dissipation. In the case of natural convective heat transfer, the surface temperature of the graphene-loaded coated aluminum plate was 96.7 °C, which was 27.4 °C lower than that of bare aluminum plate (124.1 °C) at a heat flux of 16 W. In the case of forced convective heat transfer, the surface temperature decreased from 77.8 and 68.3 °C for a heat flux of 16 W. The decrease in temperature can be attributed to the thermal radiation. These results show that the addition of graphene nanoparticles in the coating can increase the emissivity of the aluminum plate and thus improving the heat dissipation. |
topic |
graphene powder coating thermal conductivity heat dissipation thermal radiation |
url |
https://www.mdpi.com/2073-4360/12/6/1321 |
work_keys_str_mv |
AT feikung improvementoftheheatdissipatingperformanceofpowdercoatingwithgraphene AT mingchienyang improvementoftheheatdissipatingperformanceofpowdercoatingwithgraphene |
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1724651282803720192 |