Enhanced Thermal Conductivity of Epoxy Composites Filled with Al2O3/Boron Nitride Hybrids for Underfill Encapsulation Materials.

ABSTRACT: In this study, a thermal conductivity of 0.22 W·m-1·K-1 was obtained for pristine epoxy (EP), and the impact of a hybrid filler composed of two-dimensional (2D) flake-like boron nitride (BN) and zero-dimensional (0D) spherical micro-sized aluminum oxide (Al2O3) on the thermal conductivity of epoxy resin was investigated. With 80 wt.% hybrid Al2O3-BN filler contents, the thermal conductivity of the EP composite reached 1.72 W·m-1·K-1, increasing approximately 7.8-fold with respect to the pure epoxy matrix. Furthermore, different important properties for the application were analyzed, such as Fourier-transform infrared (FTIR) spectra, viscosity, morphology, coefficient of thermal expansion (CTE), glass transition temperature (Tg), decomposition temperature (Td), dielectric properties, and th

SUBMITTER: Lee Sanchez WA 

PROVIDER: S-EPMC7795928 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature