Mechanical Properties and Characterization of Graphene Nanoparticles Conductive Ink at Different Pattern

Abstract

The development of variety printing methods and compatible conductive inks is to support the emerging high demand production of printed electronic devices. Conductive ink is used to create conductive paths as interconnecting tracks for the printed electronic devices. The method of integrating various conductive materials using thermoplastic viscous paste was introduced in order to enhance the ability of conductive ink to conducts electricity. Carbon nanomaterial’s offer many opportunities in the conductive ink application especially for printed and flexible electronics. This study aims to produce highly functional conductive ink using graphene nanoparticles (GNP) with Bisphenol-A (BPA) resins as a binder by investigate the mechanical properties and characterization of graphene nanoparticles conductive ink at of different patterns. The effect of nano-indentation, for straight line shape, curve shape, square shape and zigzag shape circuit printed on thermoplastic polyurethane (TPU) substrate were observed. The hardness and elastic modulus for the formulated graphene nanoparticles conductive ink shows that square patterns displayed a better mechanical properties compared to the other patterns. Scanning electron microscopy (SEM) and energy dispersive x-ray (EDX) finding also show that square pattern has a uniform distribution of (GNP) filler and lowest amount of atomic weight with fine granular particle indicating of lower resistance value which can contribute to have higher conductivity property. Overall obtained results showed that a square pattern produced good performance in term of mechanical properties that can enhance the conductivity of the conductive ink.