Fabrication and electricity properties of Ag-Cu covered elastomer microspheres by electroless plating

Cu and Ag-Cu coated acrylate rubber(ACM)microspheres of micron scale by electroless plating was studied.The morphology,composition and density of the deposits were investigated using EDS-SEM,XRD and liquid immersion method.And the variation of volume resistivity of metal coated ACM microspheres with pressure,electrifing time and temperature were tested.By comparing the testing results with the resistivity of carbon black and Ag plated Cu particles,the electrical properties of the Cu and Ag-Cu coated ACM microspheres were elucidated.It is found that the Ag-Cu coated ACM microspheres have the similar conductivity with the Ag plated Cu particles.