Research progress of integrated materials for heat conduction and electromagnetic wave absorption

Electromagnetic pollution is a significant concern in 5G communication. Electromagnetic wave absorbing materials can efficiently soak up and decrease the intensity of electromagnetic waves, whereby they dissipate the energy as heat. These materials have extensive applications in aerospace, military equipment and electronic communications. However, the miniaturization, integration and high frequency of electronic equipment make it impossible for electronic equipment to dissipate the heat energy generated by it in time, thus affecting the normal operation of the equipment. Therefore, how to efficiently apply thermally conductive materials to electromagnetic wave absorption has become the focus and hotspot of current research in the field of wave absorption. This paper reviews the application and research progress of different kinds of thermal conductive materials in electromagnetic wave absorption. Firstly, the types of thermal conductive materials are introduced according to the composition, and the thermal conduction mechanism of metal materials, ceramic materials, carbon materials and their composites, thermal conductive polymer materials and their composites, as well as the mechanism and application of different thermal conductive materials in electromagnetic wave absorption are described in detail. Finally, the future research direction and application of integrated materials for thermal conductivity and electromagnetic wave absorption are put forward.