| 초록 |
This study investigates the thermal and electrical conductivity of epoxy composites contacting hybrid fillers which are expanded graphite (EG), graphite (G), and copper powder (Cu). To enhance thermal conductivity of epoxy resin, EG were electrolessly Ag-plated (Ag-EG). Ag-EG. G and Cu are incorporated into the epoxy resin to form hybrid composites (Ag-EG/G/Cu). Ag-EG surfaces were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS). Thermal conductivity of Ag-EG/G/Cu composites was tested using a laser flash analysis (LFA). . From the results, it was found that the thermal conductivity of the composites was enhanced by addition of AG-EG/G/Cu hybrid fillers. In particular, the Ag-EG/G/Cu sample showed more than 755% enhancement of the thermal conductivity compared to the epoxy sample. |
