| Title |
Study on Next-generation Metal-nanocarbon based Composite Sheets: Thermal Conductivity Enhancement |
| Authors |
최소영(Soyoung Choi) ; 이철승(Churl Seung Lee) ; 배준호(Joonho Bae) |
| DOI |
https://doi.org/10.5573/ieie.2024.61.12.23 |
| Keywords |
Thermal conductivity; Composite sheets; Graphene nano platelet; Carbon nanotube; PAA(Poly Acrylic Acid) |
| Abstract |
In this study, a composite sheet based on metal-carbon coating, consisting of three layers, was designed and fabricated, and its thermal conductivity was measured and analyzed. The thermal conductivity characteristics of nano-carbon ink were investigated using plate-shaped carbon nanomaterial GNP and linear nanomaterial CNT on a patterned copper-coated graphite substrate. When the thermal conductivity in the vertical direction (through-plane) was evaluated using the laser flash method, the result of using a dual-filler, where both linear nanomaterial fillers and plate-shaped nanofillers were mixed, showed superior performance in thermal conductivity compared to using a single filler. Additionally, when an appropriate amount of polymer PAA was mixed into the nano-carbon ink, the introduction of thermal pathways by the polymer improved the vertical thermal conductivity, enhancing the overall thermal conductivity by about 60%. In conclusion, it was found that the composite material composed of nanocarbon with both linear and plate-like orientations and polymer materials significantly improved heat dissipation characteristics. |