Graphene co-deposition chemical nickel plating solution and plating method thereof

A graphene dispersion, graphene technology, applied in liquid chemical plating, metal material coating process, coating and other directions, can solve problems such as hindering the expansion of application fields of chemical nickel plating, chromate pollution, complex process, etc. To achieve the effect of convenient operation and easy to master, prolong the service life and simplify the preparation process

Inactive Publication Date: 2018-07-13
宁波中科纬诚新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, in the process of adding an isolation layer, double-layer nickel plating is required, and the process is complicated and costly; in the process of sealing holes, inorganic Cr series sealing solutions are currently mainly used, which will cause serious chromate pollution; these factors It hinders the further expansion of the application field of electroless nickel plating

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The invention provides a graphene co-precipitation chemical nickel plating process, comprising the steps of:

[0019] S1. prepare acidic plating solution, raw material is composed of nickel sulfate hexahydrate 1.5wt%, sodium hypophosphite 2wt%, lactic acid 1wt% and citric acid 1wt%, succinic acid 0.2wt%, potassium iodate 0.001wt%, sodium saccharin 0.02 wt%, sodium dodecyl sulfate 0.001wt%;

[0020] Add each reagent to water in turn, dissolve completely, and form a light blue transparent plating solution;

[0021] S2. add graphite powder, 0.005wt% sodium dodecylsulfonate to the solvent water, mix, make the graphite powder directly peel off in the liquid phase and prepare to obtain a uniform and stable graphene dispersion, wherein the graphene content is 0.005wt% ;

[0022] S3. adding the graphene dispersion in the acidic plating solution to form a composite plating solution of 0.0005wt% graphene, and adjusting the pH value with concentrated sulfuric acid or ammonia wat...

Embodiment 2

[0026] The invention provides a graphene co-precipitation chemical nickel plating process, comprising the steps of:

[0027] S1. prepare acidic plating solution, raw material is composed of nickel sulfate hexahydrate 2wt%, sodium hypophosphite 2.5wt%, lactic acid 1.5wt% and citric acid 1wt%, succinic acid 0.02wt%, potassium iodate 0.003wt%, sodium saccharin 0.05wt%, sodium dodecylsulfonate 0.001wt%; each reagent is added into water in turn, completely dissolved, forming a light blue transparent plating solution;

[0028] S2. adding graphite powder and 0.1wt% triethanolamine lauryl sulfate to the solvent water, fully mixing, so that the graphite powder is directly peeled off in the liquid phase to prepare a uniform and stable graphene dispersion, wherein the graphene content is 0.008wt%;

[0029] S3. adding the graphene dispersion in the acidic plating solution to form a composite plating solution of 0.001wt% graphene, adjusting the pH value with concentrated sulfuric acid or a...

Embodiment 3

[0033] The invention provides a graphene co-precipitation chemical nickel plating process, comprising the steps of:

[0034] S1. prepare acidic plating solution, raw material is composed of nickel sulfate hexahydrate 2.5wt%, sodium hypophosphite 3.5wt%, lactic acid 2wt% and citric acid 1wt%, succinic acid 0.02wt%, potassium iodate 0.004wt%, sodium saccharin 0.05wt%, sodium dodecylsulfonate 0.001wt%; each reagent is added into water in turn, completely dissolved, forming a light blue transparent plating solution;

[0035] S2. adding graphite powder and 0.2wt% polyvinylpyrrolidone to the solvent water, fully mixing, so that the graphite powder is directly peeled off in the liquid phase to prepare a uniform and stable graphene dispersion, wherein the graphene content is 0.02wt%;

[0036] S3. adding the graphene dispersion in the acidic plating solution to form a composite plating solution of 0.006wt% graphene, adjusting the pH value with concentrated sulfuric acid or ammonia wate...

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PUM

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Abstract

The invention discloses a graphene co-deposition chemical composite nickel plating solution. The solution is formed by compounding a graphene dispersion solution and an acid plating solution, the composite plating solution is composed of reagents with relatively low cost, through the mode of compounding the graphene dispersion solution and the acid plating solution, the graphene and the nickel-phosphorus are combined well, a high-quality plating is obtained after plating is carried out, the graphene and the nickel-phosphorus can also be prevented from being plated on the wall of a container,or plating between the graphene and the nickel-phosphorus is mainly prevented; during preparing, the graphene is directly stripped in the liquid phase to form the graphene dispersion solution, and theacid plating solution can be formed by dissolving reagents such as nickel salt, so that the preparation process of the composite plating solution is greatly simplified, and the operation is convenient and fast, and is easy to master; and after the workpiece is plated with the graphene and the nickel-phosphorus plating, the corrosion resistance and the wear resistance can be greatly improved, andthe service life of the workpiece is prolonged.

Description

technical field [0001] The invention relates to the field of plating materials, in particular to the field of electroless nickel plating, and also relates to a plating method. Background technique [0002] As a kind of green environmental protection, strong plating ability, low resistivity, high wear resistance and good corrosion resistance, electroless nickel plating has received more and more attention and attention from the industry in recent years, and has been used in petrochemical industry , Industrial machinery, electronic energy, automobile manufacturing and aerospace and many other high-tech fields have been applied. However, in the field of heavy anti-corrosion, the electroless nickel-phosphorus (Ni-P) alloy coating still cannot replace electrochrome plating; in the field of decorative nickel plating, the surface of the Ni-P coating is easily oxidized and corroded, resulting in discoloration and blooming of the coating, which affects the aesthetic performance of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/36
CPCC23C18/36
Inventor 盛江叶继春
Owner 宁波中科纬诚新材料科技有限公司
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