摘要:
A method of forming a conductive metal layer on a non-conductive surface, including providing a non-conductive surface; contacting the non-conductive surface with an aqueous solution or mixture containing a stannous salt to form a sensitized surface; contacting the sensitized surface with an aqueous solution or mixture containing a silver salt having a pH in the range from about 5 to about 10 to form a catalyzed surface; and electroless plating the catalyzed surface by applying an electroless plating solution to the catalyzed surface.
摘要:
Described is a new process for applying a metal coating to a non-conductive substrate comprising the steps of (a) contacting the substrate with an activator comprising a noble metal/group IVA metal sol to obtain a treated substrate, (b) contacting said treated substrate with a composition comprising a solution of: (i) a Cu(II), Ag, Au or Ni soluble metal salt or mixtures thereof, (ii) 0.05 to 5 mol/I of a group IA metal hydroxide and (iii) a complexing agent for an ion of the metal of said metal salt comprising an organic material having a cumulative formation constant log K of from about 0.73 to about 21.95 for an ion of the metal of said metal salt, characterised in that the composition according to step (b) is treated with an electrical current for a period of time prior to and / or during contacting said solution with the substrate.
摘要:
The invention relates to a method for producing a plastic coating with a thickness of less than 200μm on the upper face of a substrate, said method comprising the following steps: application of a plastic powder to the upper face of the substrate by means of a powder spray unit; subsequent cleaning of the underside of the substrate; subsequent melting of the applied powder in an oven, forming the plastic coating on the substrate; and cooling of the substrate, the latter being continuously transported from method step to method step.
摘要:
Disclosed is an electroplating method for filling cavities, through holes, pocket holes, or micropocket holes of a workpiece with metals. According to said method, the workpiece containing cavities, through holes, pocket holes, or micropocket holes is brought in contact with a metal deposition electrolyte, and a voltage is applied between the workpiece and at least one anode such that a current flow is fed to the workpiece. The inventive method is characterized in that the electrolyte encompasses a redox system.
摘要:
To electroplate a metal layer which has silica particles dispersed therein, a solution and a method for electrochemically depositing a metal on a substrate are provided, wherein the solution contains ions of the metal to be deposited and silica particles, wherein at least one silicon containing organic moiety is provided to said silica particles , said silicon containing organic moiety comprising at least one functional group selected from the group comprising amino, quaternized ammonium, quaternized phosphonium and quaternized arsonium which imparts the silica particles a positive electric charge while being in contact with the solution.
摘要:
A process for the preparation of electrodes for use in a fuel cell comprising a membrane electrode assembly with a negative and a positive electrode is described, said process comprising the following steps: (i) providing an electrode substrate and (ii) coating said substrate electrolytically from a plating bath with a metal layer, said metal being selected from Ag, Au, Pd and its alloys.
摘要:
A method for degrading, detackifying and reducing solvent in water comprising organic solvent-laden water-borne paint that comprises adding to the water an effective degrading, detackifying and/or solvent-reducing amount of at least one microorganism culture and sufficient micronutrients to sustain the growth of the at least one microorgansim culture and to reduce solvent content of the water. A method of reducing chemical oxygen demand in water comprising organic solvent-laden water-borne paint, wherein the water contains an excess amount of organic solvent from one or both of paint spray operations and paint spray nozzle cleaning operations, the method comprising adding to the water an effective degrading and detackifying amount of at least one microorganism culture and micronutrients to sustain the growth of the at least one microorgansim culture, whereby chemical oxygen demand in the water is reduced by at least 50% relative to the same system without adding the micronutrients.