This　article　investigates　the　effect　of　the　silver　plating　time　on　the　microwave　shielding　and　mechanical　properties　of　the　conductive　silicone　rubber　filled　with　silver-coated　carbonyl　nickel　powder.　The　results　show　that　the　electromagnetic　shielding　effectiveness　(SE)　of　the　rubber　with　the　silver-coated　carbonyl　nickel　powder　rises　up　to　about　twice　that　of　the　rubber　with　the　carbonyl　nickel　powder　and　the　elongation　of　the　rubbers　at　break　increases　when　the　plating　time　reaches　40　min.　The　property　improvement　is　related　to　the　strengthening　effects　of　the　silver　coating　layer　on　the　carbonyl　nickel　powder　in　the　rubber.　The　silver　coating　layer　builds　a　silver-silver　conductive　channel　and　a　cooperative　mechanism　of　the　electromagnetic　wave　reflection　and　absorption.　That　is　beneficial　to　increasing　the　SE　of　the　rubber.　In　addition,　the　silver　coating　layer　on　the　surface　of　the　carbonyl　nickel　powder　has　a　better　combining　ability　with　the　rubber　than　the　powder　itself,　which　may　play　an　important　part　in　the　increase　of　the　elongation.　(C)　2017　Elsevier　B.V.　All　rights　reserved.