Enhanced thermal and electrical properties by Ag nanoparticles decorated GO-CNT nanostructures in PEEK composites

A nanostructure of graphene oxide (GO) and carbon nanotubes (CNTs) decorated with silver nanoparticles (AgGNT) has been prepared via a molecular-level-mixing (MLM) method followed by subsequent freeze-drying reduction process. The obtained well-dispersed AgGNT nanostructures were then applied as fillers to reinforce the poly(ether ether ketone) (PEEK) matrix. AgGNT-PEEK composites have demonstrated excellent electrical thermal conduction performances well high durability compared pure PEEK its Ag or GO-CNT (GNT) enhanced composites. Owing unique morphology nanostructures, which made them uniformly dispersed in matrix formed 3D network structure, displayed 60% higher conductivity around 109 times better performance than PEEK, superior even above melting temperature PEEK. Thus, shown great potential for applications such semiconductors, high-temperature applications, aerospace, automobile materials.