PREPARATION AND PROPERTY OF Ni/Ag-Cu POWDER COMPOSITE CONDUCTIVE PASTE

Abstract

A composite conductive paste was prepared using Ni powder and Ag-Cu powder as the conductive fillers, and modified polyurethane resin (PUR) as the matrix. The conductive coatings were cured after being applied onto polyethylene terephthalate (PET) films. Results show that when the mass ratio of the Ag-Cu powder, Ni powder and resin matrix was 13 : 2 : 5, the resistivity of the prepared conductive paste reached a minimum value of 7.92 × 10–4 Ω·cm and the binding force between the conductive coating and PET film was 20.1 N. In addition, the prepared coatings also exhibited good corrosion resistance in a neutral corrosive environment. Even after being bent 50 times, they showed no significant change, still exhibiting good corrosion resistance and bending performance.