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Universal electroplating additive and preparation method thereof

An electroplating additive and general-purpose technology, which is applied in the field of general-purpose electroplating additives and its preparation, can solve problems such as not being able to meet the requirements for electroplating copper-zinc alloys, poor performance improvement of alloy electroplating baths, and poor performance improvement of coatings. To achieve the effect of performance improvement, gloss improvement and coating hardness improvement

Inactive Publication Date: 2020-05-01
浙江金欣新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. Poor versatility, often only for a certain type of electroplating (such as electroplating copper or electrogalvanizing), which cannot meet the requirements of electroplating copper-zinc alloy;
[0007] 2. The performance of the alloy electroplating bath is poorly improved;
[0008] 3. Poor improvement of coating performance after electroplating

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A general-purpose electroplating additive is made from raw materials comprising the following parts by weight:

[0027] Sodium Tartrate, Sodium Citrate, Benzylidene Acetone, 2-Mercaptobenzimidazole, Sodium 2-Ethylhexyl Sulfate, Allylthiourea.

[0028] Preferably, the dosage of the general-purpose electroplating additives is that the contents of each raw material in each liter of electroplating bath are: sodium tartrate 10-20 mg / L, sodium citrate 8-14 mg / L, benzylidene acetone 45-75 mg / L , 2-Mercaptobenzimidazole 30~45mg / L, 2-Ethylhexyl Sodium Sulfate 25~32mg / L, Allylthiourea 5~10mg / L.

[0029] Preferably, the dosage of the general-purpose electroplating additive is that the contents of each raw material in each liter of electroplating bath are: sodium tartrate 12-17 mg / L, sodium citrate 9.5-12 mg / L, benzylidene acetone 56-64 mg / L , 2-Mercaptobenzimidazole 34~40mg / L, 2-Ethylhexyl Sodium Sulfate 27~30mg / L, Allylthiourea 7~9mg / L.

[0030] Preferably, the dosage of the ge...

Embodiment 2

[0035] A general-purpose electroplating additive is made from raw materials comprising the following parts by weight:

[0036] Sodium Tartrate, Sodium Citrate, Benzylidene Acetone, 2-Mercaptobenzimidazole, Sodium 2-Ethylhexyl Sulfate, Allylthiourea.

[0037] In this embodiment, the dosage of the general-purpose electroplating additive is that the contents of each raw material in each liter of electroplating bath are: sodium tartrate 12mg / L, sodium citrate 9.5mg / L, benzylidene acetone 56mg / L, 2 - Mercaptobenzimidazole 34 mg / L, 2-ethylhexyl sodium sulfate 27 mg / L, allylthiourea 7 mg / L.

[0038] In the present embodiment, the preparation method of the general-purpose electroplating additive comprises the following steps:

[0039] A, according to the total volume of electroplating bath, calculate respectively the addition of each raw material of described universal electroplating additive;

[0040] B. Weigh each raw material of the general-purpose electroplating additive accordi...

Embodiment 3

[0042] A general-purpose electroplating additive is made from raw materials comprising the following parts by weight:

[0043] Sodium Tartrate, Sodium Citrate, Benzylidene Acetone, 2-Mercaptobenzimidazole, Sodium 2-Ethylhexyl Sulfate, Allylthiourea.

[0044] In this embodiment, the dosage of the general-purpose electroplating additives is that the content of each raw material in each liter of electroplating bath is respectively: sodium tartrate 17mg / L, sodium citrate 12mg / L, benzylidene acetone 64mg / L, 2- Mercaptobenzimidazole 40mg / L, 2-ethylhexyl sodium sulfate 30mg / L, allylthiourea 9mg / L.

[0045] In the present embodiment, the preparation method of the general-purpose electroplating additive comprises the following steps:

[0046] A, according to the total volume of electroplating bath, calculate respectively the addition of each raw material of described universal electroplating additive;

[0047] B. Weigh each raw material of the general-purpose electroplating additive ...

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Abstract

The invention discloses a universal electroplating additive. The universal electroplating additive is prepared from the following raw materials in parts by weight: sodium tartrate, sodium citrate, benzylidene acetone, 2-mercapto benzimidazole, 2-ethylhexyl sodium sulfate and allylthiourea. The universal electroplating additive disclosed by the invention can be suitable for various electroplating processes such as copper plating, zinc plating and copper-zinc alloy plating, and the flatness and glossiness of a surface plating layer of an electroplated product are greatly improved; and the corrosion resistance can be remarkably improved, the hardness of the plating layer is improved, and the current efficiency, the dispersion capacity and other properties of a plating solution are well improved.

Description

technical field [0001] The invention relates to the technical field of additives for electroplating, in particular to a general-purpose electroplating additive and a preparation method thereof. Background technique [0002] Electroplating is the process of plating a thin layer of other metals or alloys on the surface of certain metals using the principle of electrolysis. It is a process of using electrolysis to attach a layer of metal film to the surface of metal or other material parts to prevent metal oxidation ( Such as rust), improve wear resistance, electrical conductivity, reflective properties, corrosion resistance (copper sulfate, etc.) and enhance the appearance. [0003] Copper electroplating is the most important method to achieve electrical interconnection in electronic products. Organic additives are usually used to achieve uniform conductive patterns and obtain excellent coating properties. The electroplating copper additives currently used in the production o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/38
CPCC25D3/38
Inventor 潘璐洁黄海宾
Owner 浙江金欣新材料科技股份有限公司
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