Composite silver plating solution as well as preparation method thereof and electrodeposition process

A technology of electrodeposition and mixed solution, applied in the direction of electrolytic coating, coating, etc., can solve the problems of easy interface reaction, poor performance of silver-graphene composite coating, poor dispersion of graphene, etc., to achieve wear resistance and contact Improved properties such as resistance, low production equipment requirements, and good dispersion effects

Inactive Publication Date: 2017-11-14
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the composite silver plating solution disclosed by the present invention and its preparation method can effectively solve the problem of poor graphene dis...

Method used

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  • Composite silver plating solution as well as preparation method thereof and electrodeposition process
  • Composite silver plating solution as well as preparation method thereof and electrodeposition process
  • Composite silver plating solution as well as preparation method thereof and electrodeposition process

Examples

Experimental program
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Effect test

Embodiment 1

[0056] Test group 1: 1g / L graphene, PVP of 0.15~0.4g / L, make graphene-PVP aqueous solution, wherein, the mass percent of PVP in graphene-PVP aqueous solution is 15%, 20%, 25%, 30% %, 35%, 40%;

[0057] Test group 2: 1g / L graphene, 0.15~0.4g / L CTAB, prepared graphene-CTAB solution, wherein, the mass percentage of CTAB in the graphene-CTAB aqueous solution is 15%, 20%, 25%, 30% , 35%, 40%;

[0058] Test group 3: 1g / L graphene, 0.15~0.4g / L SDBS, make graphene-SDBS solution, make graphene-SDBS solution, wherein, the mass percentage of CTAB in graphene-SDBS aqueous solution is 15%, 20%, 25%, 30%, 35%, 40%.

[0059]The solutions of test group 1 to test group 3 were ultrasonically dispersed for 1 hour and then allowed to stand for 24 hours, then a certain amount of composite silver plating solution was taken, and the absorbance was measured by an ultraviolet spectrophotometer. The result is as figure 1 shown. From figure 1 It can be seen that the absorbance of the t...

Embodiment 2

[0061] Test group 1 to test 5: 40g / L silver nitrate, 90g / L succinimide, 90g / L potassium pyrophosphate, 1g / L graphene, 0.3g / L PVP, potassium hydroxide: 40g / L, After fully stirring, sonicate for 1 h to prepare a composite silver plating solution.

[0062] After degreasing, grinding, ultrasonic cleaning, alkali cleaning and pickling, the copper substrate and silver sheet were placed in the composite silver plating solution of the above-mentioned test group 1 to test group 5, and then composite electrodeposition was carried out to prepare the silver-graphene composite plating.

[0063] The parameters of composite electrodeposition are set as:

[0064] Test group 1: current density: 0.1A / dm 2 ; Stirring speed: 1000r / min; Plating temperature: 40°C, electrodeposition time 60min;

[0065] Test group 2: current density: 0.3A / dm 2 ; Stirring speed: 1000r / min; Plating temperature: 40°C, electrodeposition time 60min;

[0066] Test group 3: current density: 0.5A / ...

Embodiment 3

[0072] Wherein, the other parameters of the silver-graphene composite coating preparation process are kept unchanged, and the amount of graphene added is changed.

[0073] Test group 1: 40g / L silver nitrate, 90g / L succinimide, 90g / L potassium pyrophosphate, 0g / L graphene, 0g / L PVP, potassium hydroxide: 40g / L, to prepare composite silver plating solution;

[0074] Test group 2: 40g / L silver nitrate, 90g / L succinimide, 90g / L potassium pyrophosphate, 0.5g / L graphene, 0.15g / L PVP, potassium hydroxide: 40g / L, prepared Composite silver plating solution;

[0075] Experimental group 3: 40g / L silver nitrate, 90g / L succinimide, 90g / L potassium pyrophosphate, 1g / L graphene, 0.3g / L PVP, potassium hydroxide: 40g / L, the compound Silver plating solution;

[0076] Test group 4: 40g / L silver nitrate, 90g / L succinimide, 90g / L potassium pyrophosphate, 2g / L graphene, 0.6g / L PVP, potassium hydroxide: 40g / L, the compound Silver plating solution; ...

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Abstract

The invention belongs to the field of electroplating, and in particular relates to a composite silver plating solution, a preparation method thereof and an electrodeposition process. The invention provides a composite silver plating solution, which comprises: a water-soluble silver-containing compound, succinimide, potassium pyrophosphate, graphene and polyvinylpyrrolidone. The invention also discloses an electrodeposition process. The composite silver plating solution disclosed by the present invention and its preparation method and electrodeposition process can effectively solve the problem of poor graphene dispersion, easy interface reaction and the performance of the prepared silver-graphene composite coating when graphene is used to prepare new silver plating solutions. Poor technical flaws.

Description

technical field [0001] The invention belongs to the field of electroplating, and in particular relates to a composite silver plating solution, a preparation method thereof and an electrodeposition process. Background technique [0002] The high-voltage isolating switch is one of the most widely used power transmission and transformation equipment in the power system, and it is also an important control and protection device. Whether its operating status is normal is related to the safety and stability of the entire power grid. Operation failure, broken insulator, overheating of conductive circuit and corrosion are the four main problems reflected in the current operation of disconnectors. [0003] At present, the material of the dynamic and static contacts of the isolating switch in China is mostly made of copper. In order to ensure good conductivity, the surface is generally silver-plated, that is, the pure silver plate is used as the anode, and the copper contact is used a...

Claims

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Application Information

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IPC IPC(8): C25D3/46C25D15/00
CPCC25D3/46C25D15/00
Inventor 吕旺燕赵耀洪王超
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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