Preparation of zinc oxide/poly-ether-ether-ketone (PEEK) composites via the cold sintering process

Appropriate preparation routes allow designing and improving the performances of ceramic-based functional composites. In this work, two powder-preparation methods enabled by cold sintering process are utilized to fabricate unique ZnO-based varistor The thermoplastic polymer, poly-ether-ether-ketone (PEEK), has been successfully integrated with ZnO form dense ZnO-PEEK With a dissolution method, PEEK particles can be homogeneously dissolved mixed solution tetrahydrofuran toluene then nanoscale thin grain boundaries after process. direct mixing large observed in sintered samples. A Finite Element Method (FEM) analysis indicates that von-mises stresses concentrate at interfaces PEEK, these increased increase particle sizes. electrical properties have improved addition 95ZnO-5PEEK shows high breakdown electric field (0.1 mA/mm2) 3070 V/mm, nonlinear coefficient 5. addition, conduction mechanism composites investigated using impedance spectroscopy. Overall, our work provides strategy for development high-performance ceramic-polymer via