▎ 摘　　要

NOVELTY - Composite type dispersant comprises distilled water, naphtholsulfonic acid condensate salt and strong alkali. USE - The composite type dispersant is useful for mixed electroplating solution (claimed). ADVANTAGE - The composite type dispersant: can actively blocks or slows down the agglomeration of graphene in dispersion liquid; and has synergistic effect; and improves the product performance of the electroplating product. The mixed electroplating solution: is uniform and stable. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: Composite type dispersant, comprising composite type dispersant and nonionic surfactant, and the nonionic surfactant is polyoxyethylene ether compound. Mixed electroplating solution, comprising composite type dispersant, silver basic aqueous solution and graphene; silver basic aqueous solution includes KCN and silver ions.