MOF and GNS work synergistically for low-k materials with higher thermal conductivity

In this work, the low dielectric constant composites with higher thermal conductivity are prepared, combining ZIF-8 insulation and graphite nanosheets (GNS) thermal conductivity via designing suitable configuration and synergistically reacting in epoxy resin matrix. It demonstrated that ZIF-8@GNS/EP (ZGNS/EP) composites have decreased by 26.4% in low dielectric constant and increased by 300.7% in thermal conductivity compared with neat EP. The dielectric loss of composites is always less than 0.033(10(2)-10(7) Hz). Simultaneously, the tensile strength of the 0.5 wt% ZGNS/EP composite is increased by 71.1% than before. Overall, this work presents new ideal to prepare low dielectric constant materials, which also possess low loss and excellent thermal conductivity.

Automated summary

In this study, low dielectric constant composites with higher thermal conductivity were prepared by combining ZIF-8 insulation and graphite nanosheets (GNS) thermal conductivity in an epoxy resin matrix. The ZIF-8@GNS/EP (ZGNS/EP) composites showed a decrease in dielectric constant by 26.4% and an increase in thermal conductivity by 300.7% compared to neat EP. The composites exhibited a dielectric loss always lower than 0.033 (10^2-10^7 Hz) and a significant increase in tensile strength. Overall, this work introduces a new concept for preparing low dielectric constant materials with low loss and excellent thermal conductivity.