High?performance and cost?effective melt blended poly(ether ether ketone)/expanded graphite composites for mass production of antistatic materials

In this study unfunctionalized expanded graphite (EG) was incorporated into poly(ether ether ketone) (PEEK) using twin-screw extrusion and injection moulding to manufacture cost-effective PEEK/EG composites for mass production of high-performance antistatic materials. Direct current electrical conductivity, morphology, rheological thermal properties the were investigated. At an EG loading 5 vol%, conductivity exhibited abrupt increase 1.45 × 10?5 S m?1 which in required range The frequency dependence storage modulus melt containing 2 vol% decreased significantly at low frequencies. Viscosity did not much with addition comparison other nanofillers such as carbon nanotubes. crystallinity PEEK increased 41.11% from 35.87% upon 3 EG. improved stability by initiation temperature its decomposition steps. © 2021 Authors. Polymer International published John Wiley & Sons Ltd on behalf Society Industrial Chemistry.