MoS2 Decorated Silver Nanowire-Reduced Graphene Oxide Aerogel Micro-Particle for Thermally Conductive Polymer Composites with Enhanced Flame Retardancy

Multifunctional polymer composites with efficient heat dissipation and flame retardancy are highly desirable in the electronic industry. Here, by the combination of hydrothermal reaction and in situ fragmentation, molybdenum disulfide (MoS2) decorated silver nanowires (AgNWs) and 3D reduced graphene oxide (RGO) (AgNW-RGO@MoS2) aerogel micro-particles (AMPs) are successfully prepared. When the above AMP is introduced to epoxy (EP) resin by the simple blending method, a polymer composite with continuous thermally conductive pathways and flame barrier layers is achieved. With an AMP loading of 4.0 vol.%, the polymer composite displays superior enhancement in thermal conductivity up to 420%. Compared to neat EP, the peak heat release rate and total heat release decreases by 61.1% and 58.8%, respectively. This work provides new insights into the design and large-scale fabrication of multifunctional polymer composites for efficient thermal management materials.

Automated summary

This study successfully prepared polymer composites with efficient heat dissipation and flame retardancy by combining hydrothermal reaction and in situ fragmentation. By adding molybdenum disulfide decorated silver nanowires and 3D reduced graphene oxide aerogel micro-particles, the thermal conductivity of the composite was significantly improved, while reducing the heat release rate and total heat release.