A kind of water-based electroplating nickel sealer and preparation method thereof
A technology of electroplating nickel and sealing agent, applied in the field of water-based nickel electroplating sealing agent and preparation, can solve the problems of poor resistance to salt spray corrosion and the like
Active Publication Date: 2022-07-01
上海昕沐化学科技有限公司
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Problems solved by technology
[0006] In view of the above-mentioned shortcoming of prior art, the object of the present invention is to provide a kind of water-based electroplating nickel sealing agent, is used to solve the problem of poor salt spray corrosion resistance of water-based electroplating nickel sealing agent in the prior art, at the same time, The present invention will also provide a kind of preparation method of water-based electroplating nickel sealing agent
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Embodiment 1
[0061] The raw materials used in Examples 1 to 5 are the same except for the complexing agent, but the proportions are different. The imidazole heterocycles and derivatives thereof added in the water-based electroplating nickel sealers of Examples 1 to 5 are respectively: Imidazole (Example 1), methylimidazole (Example 2), benzotriazole (Example 3), methylbenzotriazole (Example 4) and methylimidazole (Example 5). Examples 6 and 7 differ from Examples 1 to 5 in terms of raw materials.
[0062] The preparation process of the water-based electroplating nickel sealing agent of embodiment 1~embodiment 7 is as follows:
[0063] 1. Add an alcohol solvent into the container, then add a fused heterocyclic compound containing mercapto (-SH), stir until completely dissolved, divide the water into two parts with similar volumes, and add one part to the container and continue stirring until the solution is clear;
[0064] 2. Add alkanolamine and stir until the solution is clear;
[0065]...
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The invention relates to the technical field of water-based electroplating nickel sealants, in particular to a water-based electroplating nickel sealer, comprising: 30-150 parts of an alcohol solvent, 2-20 parts of a mercapto group-containing fused heterocyclic compound, 30-150 parts parts of alcohol amine, 10-80 parts of anionic surfactant, 1-8 parts of fatty amine polyoxyethylene ether, 30-150 parts of alcohol ether, 0.5-15 parts of complexing agent, 500-850 parts of water. The preparation method is to mix various raw materials and stir until clear. The invention solves the problem of poor salt spray corrosion resistance of the water-based electroplating nickel sealer in the prior art. The water-based electroplating nickel sealer can form a bright and transparent adsorption film on the surface of the electroplated nickel, which seals the surface of the nickel layer. Pores, which significantly improve the salt spray corrosion resistance of the electroplated nickel layer. In addition, after being sealed with a water-based electroplating nickel sealer, the electroplated nickel surface does not need to be heated and dried, and can be directly dried in the air to enter the processing process.
Description
technical field [0001] The invention relates to the technical field of a water-based electroplating nickel sealer, in particular to a water-based electroplating nickel sealer and a preparation method. Background technique [0002] Electroplated nickel has excellent anti-corrosion and wear-resistant properties, and is often used as a conduction, decoration, protection or functional layer of components, and is used in various fields such as aerospace, defense and military, consumer electronics, petrochemical and civil construction. However, in the process of nickel electroplating, affected by the characteristics of the substrate, process parameters and electrolyte conditions, it is difficult for the deposition of nickel atoms to be completely dense. Therefore, nickel electroplating generally has certain pores, which can only be guaranteed after the coating reaches a certain thickness. hole. For nickel electroplating with pores, the oxidizing medium in the external environment...
Claims
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IPC IPC(8): C25D5/48
CPCC25D5/48
Inventor 章磊陈金明李政柱
Owner 上海昕沐化学科技有限公司