Preparation and Properties of Heat-Dissipation Coating Filled with Carbon-Based Filler

Abstract:

Aiming at the heat dissipation of equipment, and based on ANSYS finite element simulation of thermal conductivity of coatings, the heat-dissipation coating filled with graphite and carbon nanotubes respectively, which integrates heat conduction (high thermal conductivity) and radiation (high emissivity), was successfully prepared by the method of solution mixing. Meanwhile, the effects of filler content, type and shape on thermal conductivity and emissivity of the coating were also investigated. The results indicate that the rising tendency between the simulated data by FEM and experimental value is consistent, which has a certain directive significance. In addition, graphite can improve the thermal conductivity and emissivity of the coating effectively; however, the emissivity decreases when the content exceeds 23.08%. The carbon nanotubes can improve the thermal conductivity and emissivity simultaneously, the thermal conductivity is 2.3 times that of pure resin, and the emissivity is up to 0.91 at the 2.0% mass fraction of carbon nanotubes.

• Periodical: Materials Science Forum (Volume 898)
• Pages: 1532-1538
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.898.1532
• Online since: June 2017
• Authors: Yue Gao*, Qian Jin Mao, Hai Wang, Zi Ming Wang, Su Ping Cui
• Keywords: ANSYS Finite Element Method, Carbon Nanotubes, Graphite, Heat-Dissipation Coating

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