CN112725848A - Additive of sulfuric acid system bright electroplating solution - Google Patents
Additive of sulfuric acid system bright electroplating solution Download PDFInfo
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- CN112725848A CN112725848A CN202011522617.1A CN202011522617A CN112725848A CN 112725848 A CN112725848 A CN 112725848A CN 202011522617 A CN202011522617 A CN 202011522617A CN 112725848 A CN112725848 A CN 112725848A
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- Prior art keywords
- additive
- sulfuric acid
- acid system
- electroplating solution
- system bright
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/22—Electroplating: Baths therefor from solutions of zinc
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Anti-Oxidant Or Stabilizer Compositions (AREA)
Abstract
The invention discloses an additive of a sulfuric acid system bright electroplating solution, which comprises the following components: 30-40 wt% of nonionic surfactant, 3-5 wt% of antioxidant, 4-8 wt% of organic solvent, 5-10 wt% of auxiliary brightener and the balance of deionized water. Compared with the prior art, the invention has the advantages that: the prepared electroplating solution has good dispersibility, good oxidation resistance, compact and smooth electroplating coating, good discoloration resistance and excellent weldability. In addition, the electroplating solution does not produce biodegradable substances, thereby reducing the difficulty of wastewater treatment, being environment-friendly and completely meeting the requirement of environmental protection standards.
Description
Technical Field
The invention relates to the technical field of electroplating liquid additive methods, in particular to an additive of a bright electroplating liquid of a sulfuric acid system.
Background
The electroplating solution is a liquid which can expand the range of the cathodic current density of metal, improve the appearance of a plating layer, increase the stability of the solution against oxidation and the like, and the variety of the electroplating solution is numerous and more than ten in the past applied in manufacturing experiments. Four common plating solutions are used in production, cyanide zinc plating, zincate zinc plating, chloride zinc plating, and sulfate zinc plating. According to the difference of main salt and other components, a plurality of plating solutions are evolved to be just different in magnitude.
Additives in the electroplating solution are important and can improve the performance of the plating layer and the electroplating quality, such as leveling agents, brightening agents, anti-pinhole agents and the like. The brightener is mainly used for increasing the brightness of the plating layer and eliminating the polishing process. The wetting agent functions to increase the interfacial tension between the various metals and the solution. Leveling agents can alter the micro-planarity of the metal surface. The stress relieving agent can reduce the internal stress of the coating and improve the toughness of the coating.
However, the electroplating solution prepared by the existing additive has poor dispersibility, poor oxidation resistance, poor smoothness and looseness of an electroplated coating, poor discoloration resistance and poor weldability of the coating. In addition, the electroplating solution can generate non-biodegradable substances, thereby improving the difficulty of wastewater treatment, further polluting the environment and being not in accordance with the requirement of environmental protection standard.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the technical defects and provide the additive of the sulfuric acid system bright electroplating solution, and the prepared electroplating solution has good dispersibility, good oxidation resistance, compact and smooth electroplated coating, good discoloration resistance and excellent weldability. In addition, the electroplating solution does not produce biodegradable substances, thereby reducing the difficulty of wastewater treatment, being environment-friendly and completely meeting the requirement of environmental protection standards.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: an additive of a sulfuric acid system bright electroplating solution comprises the following components: 30-40 wt% of nonionic surfactant, 3-5 wt% of antioxidant, 4-8 wt% of organic solvent, 5-10 wt% of auxiliary brightener and the balance of deionized water.
The nonionic surfactant comprises one of fatty alcohol-polyoxyethylene ether, fatty amine-polyoxyethylene ether, alkanolamide-polyoxyethylene ether and alkanolamide.
The antioxidant comprises one of butyl hydroxy anisol, dibutyl hydroxy toluene, propyl gallate, tert-butyl hydroquinone and dilauryl thiodipropionate.
The auxiliary brightening agent comprises one of alkynol additives, pyridinium propane sulfonate and benzalacetone.
The composition comprises the following components: 32-38 wt% of nonionic surfactant, 4-4.5 wt% of antioxidant, 5-7 wt% of organic solvent, 6-9 wt% of auxiliary brightener and the balance of deionized water.
Compared with the prior art, the invention has the advantages that: the prepared electroplating solution has good dispersibility, good oxidation resistance, compact and smooth electroplating coating, good discoloration resistance and excellent weldability. In addition, the electroplating solution does not produce biodegradable substances, thereby reducing the difficulty of wastewater treatment, being environment-friendly and completely meeting the requirement of environmental protection standards.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention discloses an additive of a sulfuric acid system bright electroplating solution, which consists of the following components: 30-40 wt% of nonionic surfactant, 3-5 wt% of antioxidant, 4-8 wt% of organic solvent, 5-10 wt% of auxiliary brightener and the balance of deionized water.
The nonionic surfactant comprises one of fatty alcohol-polyoxyethylene ether, fatty amine-polyoxyethylene ether, alkanolamide-polyoxyethylene ether and alkanolamide.
The antioxidant comprises one of butyl hydroxy anisol, dibutyl hydroxy toluene, propyl gallate, tert-butyl hydroquinone and dilauryl thiodipropionate.
The auxiliary brightening agent comprises one of alkynol additives, pyridinium propane sulfonate and benzalacetone.
The composition comprises the following components: 32-38 wt% of nonionic surfactant, 4-4.5 wt% of antioxidant, 5-7 wt% of organic solvent, 6-9 wt% of auxiliary brightener and the balance of deionized water.
Example 1
An additive of a sulfuric acid system bright electroplating solution comprises the following components: 30 wt% of nonionic surfactant, 3 wt% of antioxidant, 4 wt% of organic solvent, 5 wt% of auxiliary brightener and the balance of deionized water.
Example 2
An additive of a sulfuric acid system bright electroplating solution comprises the following components: 35 wt% of nonionic surfactant, 4 wt% of antioxidant, 6 wt% of organic solvent, 7 wt% of auxiliary brightener and the balance of deionized water.
Example 3
An additive of a sulfuric acid system bright electroplating solution comprises the following components: 40 wt% of nonionic surfactant, 5 wt% of antioxidant, 8 wt% of organic solvent, 10 wt% of auxiliary brightener and the balance of deionized water.
The pure tin additive and the plating solution prepared by the pure tin additive have good dispersibility, good oxidation resistance, compact and smooth plating layer, good discoloration resistance and excellent weldability. In addition, the electroplating solution does not produce biodegradable substances, thereby reducing the difficulty of wastewater treatment, being environment-friendly and completely meeting the requirement of environmental protection standards.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. An additive of a sulfuric acid system bright electroplating solution is characterized in that: the composition comprises the following components: 30-40 wt% of nonionic surfactant, 3-5 wt% of antioxidant, 4-8 wt% of organic solvent, 5-10 wt% of auxiliary brightener and the balance of deionized water.
2. The additive for sulfuric acid system bright plating solution as set forth in claim 1, wherein: the nonionic surfactant comprises one of fatty alcohol-polyoxyethylene ether, fatty amine-polyoxyethylene ether, alkanolamide-polyoxyethylene ether and alkanolamide.
3. The additive for sulfuric acid system bright plating solution as set forth in claim 1, wherein: the antioxidant comprises one of butyl hydroxy anisol, dibutyl hydroxy toluene, propyl gallate, tert-butyl hydroquinone and dilauryl thiodipropionate.
4. The additive for sulfuric acid system bright plating solution as set forth in claim 1, wherein: the auxiliary brightening agent comprises one of alkynol additives, pyridinium propane sulfonate and benzalacetone.
5. The additive for sulfuric acid system bright plating solution as set forth in claim 1, wherein: the composition comprises the following components: 32-38 wt% of nonionic surfactant, 4-4.5 wt% of antioxidant, 5-7 wt% of organic solvent, 6-9 wt% of auxiliary brightener and the balance of deionized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011522617.1A CN112725848A (en) | 2020-12-22 | 2020-12-22 | Additive of sulfuric acid system bright electroplating solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011522617.1A CN112725848A (en) | 2020-12-22 | 2020-12-22 | Additive of sulfuric acid system bright electroplating solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112725848A true CN112725848A (en) | 2021-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011522617.1A Pending CN112725848A (en) | 2020-12-22 | 2020-12-22 | Additive of sulfuric acid system bright electroplating solution |
Country Status (1)
| Country | Link |
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| CN (1) | CN112725848A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922026A (en) * | 2010-08-18 | 2010-12-22 | 济南德锡科技有限公司 | Methanesulfonic acid-based matte pure tin electroplating solution and additive thereof |
| CN108396343A (en) * | 2018-05-05 | 2018-08-14 | 深圳市竑鎏电子表面处理科技有限公司 | A kind of mist tin additive and the electroplate liquid using the mist tin additive |
-
2020
- 2020-12-22 CN CN202011522617.1A patent/CN112725848A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922026A (en) * | 2010-08-18 | 2010-12-22 | 济南德锡科技有限公司 | Methanesulfonic acid-based matte pure tin electroplating solution and additive thereof |
| CN108396343A (en) * | 2018-05-05 | 2018-08-14 | 深圳市竑鎏电子表面处理科技有限公司 | A kind of mist tin additive and the electroplate liquid using the mist tin additive |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210430 |
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| RJ01 | Rejection of invention patent application after publication |