| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology capable of forming a composite plating coating having uniform particle diameter at nanometer size and containing 10 wt.% or more of molybdenum disulfide.SOLUTION: A molybdenum disulfide derivative solution is produced by addition reaction of tetra thio ammonium molybdate and sodium 2-propyne-1-sulfonate. Then an electroplating coating is formed by using an acidic electroplating bath containing the solution. Since metals such as nickel, copper, and cobalt in the plating bath do not deposit even when the molybdate derivative solution is added to the acidic electroplating bath, a composite plating coating of molybdenum disulfide and metals in the plating bath can be formed by the acidic electroplating bath containing the solution. This enables forming a composite plating coating containing molybdenum disulfide of 10 wt.% or more with having uniform particle diameter at nanometer size. |
