Preparation and adhesive performance of electrical conductive epoxy-acrylate resin containing silver-plated graphene

Abstract

The epoxy-acrylate (EA) was mixed with Ag-plated graphene (Ag-G), which was used as the conductive filler, to prepare the dual-curable electrical conductive adhesive (ECA). The characterization of Ag-G has been carried out by transmission electron microscope, X-ray diffraction, Raman spectrum, and X-ray photoelectron spectroscopy. Results showed that the Ag-G has been successfully prepared and the relative amount of Ag nanoparticles was 11.25 At%. The mechanical and conductive properties together with thermal stability of ECA have also been investigated. The shear strength reached to 4.67 MPa and the electrical conductivity of ECA reached to 0.41 S/cm when the content of conductive filler was 25 wt%, respectively. This content was regarded as the optimum. And, thermal analysis indicated that ECA exhibited better thermal stability than EA.