CN108251824A - A kind of environmental-protecting chemical sinks nickel solution - Google Patents
A kind of environmental-protecting chemical sinks nickel solution Download PDFInfo
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- CN108251824A CN108251824A CN201810058164.8A CN201810058164A CN108251824A CN 108251824 A CN108251824 A CN 108251824A CN 201810058164 A CN201810058164 A CN 201810058164A CN 108251824 A CN108251824 A CN 108251824A
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- Prior art keywords
- environmental
- nickel
- protecting chemical
- nickel solution
- sinks
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
- C23C18/34—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents
- C23C18/36—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents using hypophosphites
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemically Coating (AREA)
Abstract
The present invention provides a kind of environmental-protecting chemical and sinks nickel solution, it is made of nickel salt, reducing agent, complexing agent, buffer, stabilizer, water, a concentration of 5~50g/L of the nickel salt, a concentration of 5~50g/L of the reducing agent, a concentration of 5~50g/L of the complexing agent, the stabilizer a concentration of 0.5~2.0ppm, with buffer regulation system pH value to 4.2~5.5.The environmental-protecting chemical of the present invention sinks nickel solution without ammonia, nitrogen, lead ion content is less than 300ppm, greatly reduces the burden for environment and influence, while the coating of nickel plating is stable, brightness is good, electric conductivity is good, suitable for the chemical nickel plating of PCB, FPC, semiconductor crystal wafer etc..
Description
Technical field
The present invention relates to electroless plating technology fields, and in particular to a kind of environmental-protecting chemical sinks nickel solution.
Background technology
Chemical sinking nickel is a kind of nickel plating technology, is that one kind does not need to that metal ion is attached to plated body through electrolysis
On surface treatment mode, be usually used in the solderable surface coating processes of PCB, FCP, can be provided to printed circuit board it is solderable,
Conducting, heat sinking function can also be used cooperatively in the coating of one with other surface coating technologies.
Chemical sinking nickel generally use chemical sinking nickel solution, to make solution-stabilized and coating being made to have preferable brightness effect,
All containing a certain amount of lead ion and ammonium hydroxide, amine substance, larger impact and burden generally are brought to environment for chemical sinking nickel solution.
Invention content
For current technical deficiency, the present invention provides a kind of environmental-protecting chemical and sinks nickel solution, without ammonia, nitrogen, coating
Middle lead ion content is less than 300ppm, while the coating of nickel plating is stable, brightness is good, and electric conductivity is good.
To realize the above-mentioned technical purpose, the technical scheme is that, a kind of environmental-protecting chemical sinks nickel solution, by nickel salt,
Reducing agent, complexing agent, buffer, stabilizer, water composition, every 1 liter of environmental-protecting chemical sink nickel solution include consisting of into
Point：A concentration of 5~50g/L of the nickel salt, a concentration of 5~50g/L of the reducing agent, the complexing agent a concentration of 5~
A concentration of 0.5~2.0ppm of 50g/L, the stabilizer, with buffer regulation system pH value to 4.2~5.5.
Wherein, the nickel salt is one or more in nickel sulfate, nickel chloride, nickelous carbonate.
Wherein, the reducing agent is one or more in sodium hypophosphite, sodium hypophosphite, potassium hypophosphite.
Wherein, the complexing agent is one or more in lactic acid, tartaric acid, citric acid, adipic acid.
Wherein, the buffer is glacial acetic acid.
Wherein, the stabilizer is at least one of potassium antimony tartrate, bismuth citrate, bismuth oxide.
Wherein, every 1 liter of environmental-protecting chemical sink nickel solution include consisting of ingredient：
Nickel salt 50g
Reducing agent 10g
Complexing agent 5g
Stabilizer 2.0ppm
With buffer regulation system pH value to 4.2~5.5,
Surplus is deionized water.
Wherein, every 1 liter of environmental-protecting chemical sink nickel solution include consisting of ingredient：
Nickel salt 25g
Reducing agent 50g
Complexing agent 50g
Stabilizer 1.0ppm
With buffer regulation system pH value to 4.2~5.5,
Surplus is deionized water.
Wherein, every 1 liter of environmental-protecting chemical sink nickel solution include consisting of ingredient：
Nickel salt 5g
Reducing agent 5g
Complexing agent 15g
Stabilizer 0.5ppm
With buffer regulation system pH value to 4.2~5.5,
Surplus is deionized water.
Complexing agent used in the present invention can well be complexed with nickel ion, so as to reduce the concentration of nickel ion, improve body
The stability of system.
It is stabilizer that the present invention, which selects potassium antimony tartrate, bismuth citrate, bismuth oxide, and toxicity is low, can not only stablize
Solution system, but also the performance of coating can be promoted.
The chemical sinking nickel system of the present invention without ammonia, nitrogen, in coating lead ion content less than 300ppm, greatly reduce for
The burden of environment and influence, while the coating of nickel plating is stable, brightness is good, electric conductivity is good, suitable for PCB, FPC, semiconductor
The chemical nickel plating of wafer etc..
Specific embodiment
With reference to specific embodiment, the present invention is further explained.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after present disclosure has been read, those skilled in the art can
To be made various changes or modifications to the present invention, such equivalent forms equally fall within limited range of the present invention.
A kind of environmental-protecting chemical sinks nickel solution, is made of nickel salt, reducing agent, complexing agent, buffer, stabilizer, water, every 1
It rises the environmental-protecting chemical and sinks nickel solution and include consisting of ingredient：A concentration of 5~50g/L, the reducing agent of the nickel salt
A concentration of 5~50g/L, a concentration of 5~50g/L of the complexing agent, the stabilizer a concentration of 0.5~2.0ppm, with
Buffer regulation system pH value is to 4.2~5.5.
Wherein, the nickel salt is one or more in nickel sulfate, nickel chloride, nickelous carbonate.
Wherein, the reducing agent is one or more in sodium hypophosphite, sodium hypophosphite, potassium hypophosphite.
Wherein, the complexing agent is one or more in lactic acid, tartaric acid, citric acid, adipic acid.
Wherein, the buffer is glacial acetic acid.
Wherein, the stabilizer is at least one of potassium antimony tartrate, bismuth citrate, bismuth oxide.
Embodiment 1
A kind of environmental-protecting chemical sinks nickel solution, and every 1 liter of environmental-protecting chemical sinks nickel solution and includes consisting of ingredient：
Nickel salt 50g
Reducing agent 10g
Complexing agent 5g
Stabilizer 2.0ppm
With buffer regulation system pH value to 4.2~5.5,
Surplus is deionized water.
The nickel salt is nickel sulfate, and reducing agent is sodium hypophosphite, and complexing agent is lactic acid, and stabilizer is potassium antimony tartrate,
Appropriate amount of deionized water is added in, with the pH value of glacial acetic acid adjustment system to 4.2~5.5,1 liter is complemented to water.
Embodiment 2
A kind of environmental-protecting chemical sinks nickel solution, and every 1 liter of environmental-protecting chemical sinks nickel solution and includes consisting of ingredient：
Nickel salt 25g
Reducing agent 50g
Complexing agent 50g
Stabilizer 1.0ppm
With buffer regulation system pH value to 4.2~5.5,
Surplus is deionized water.
The nickel salt is nickel chloride, and reducing agent is sodium hypophosphite, and complexing agent is tartaric acid, and stabilizer is bismuth citrate, is added
Enter appropriate amount of deionized water, with the pH value of glacial acetic acid adjustment system to 4.2~5.5,1 liter is complemented to water.
Embodiment 3
A kind of environmental-protecting chemical sinks nickel solution, and every 1 liter of environmental-protecting chemical sinks nickel solution and includes consisting of ingredient：
Nickel salt 5g
Reducing agent 5g
Complexing agent 15g
Stabilizer 0.5ppm
With buffer regulation system pH value to 4.2~5.5,
Surplus is deionized water.
The nickel salt is nickelous carbonate, and reducing agent is potassium hypophosphite, and complexing agent is citric acid, and stabilizer is bismuth oxide,
Appropriate amount of deionized water is added in, with the pH value of glacial acetic acid adjustment system to 4.2~5.5,1 liter is complemented to water.
Embodiment 4
A kind of environmental-protecting chemical sinks nickel solution, and every 1 liter of environmental-protecting chemical sinks nickel solution and includes consisting of ingredient：
Nickel salt 10g
Reducing agent 15g
Complexing agent 5g
Stabilizer 1.5ppm
With buffer regulation system pH value to 4.2~5.5,
Surplus is deionized water.
The nickel salt is nickelous carbonate, and reducing agent is sodium hypophosphite, and complexing agent is adipic acid, and stabilizer is antimony tartrate
Potassium adds in appropriate amount of deionized water, and with the pH value of glacial acetic acid adjustment system to 4.2~5.5,1 liter is complemented to water.
Embodiment 5
A kind of environmental-protecting chemical sinks nickel solution, and every 1 liter of environmental-protecting chemical sinks nickel solution and includes consisting of ingredient：
Nickel salt 40g
Reducing agent 35g
Complexing agent 25g
Stabilizer 1.0ppm
With buffer regulation system pH value to 4.2~5.5,
Surplus is deionized water.
The nickel salt is nickel chloride, and reducing agent is sodium hypophosphite, and complexing agent is citric acid, and stabilizer is bismuth citrate, is added
Enter appropriate amount of deionized water, with the pH value of glacial acetic acid adjustment system to 4.2~5.5,1 liter is complemented to water.
Nickel solution is sunk to the progress nickel plating operation of FCP pieces with the environmental-protecting chemical obtained by the embodiment of the present invention, is sunk the plating time 20
Minute, 75 DEG C of temperature, coating is bright and clean, and stabilization, brightness are good, and electric conductivity is good, and lead ion content is less than 300ppm in coating.
In addition, the environmental-protecting chemical obtained by embodiment sink nickel solution place 3 months it is still as clear as crystal, stability is strong.
The present invention environmental-protecting chemical sink nickel solution without ammonia, nitrogen, lead ion content is extremely low, caused by environment influence and
Bear small, while the coating of nickel plating is stable, brightness is good, and electric conductivity is good, suitable for the change of PCB, FPC, semiconductor crystal wafer etc.
Learn nickel plating.
Than the above described, the present invention can also have other modes realization, in the premise for not departing from the content of present invention
Under, any obvious replacement is within protection scope of the present invention.
Claims (9)
1. a kind of environmental-protecting chemical sinks nickel solution, which is characterized in that the environmental-protecting chemical sink nickel solution by nickel salt, reducing agent,
Complexing agent, buffer, stabilizer, water composition, every 1 liter of environmental-protecting chemical sink nickel solution include consisting of ingredient：It is described
A concentration of 5~50g/L of nickel salt, a concentration of 5~50g/L of the reducing agent, a concentration of 5~50g/L of the complexing agent, institute
A concentration of 0.5~2.0ppm of stabilizer is stated, with buffer regulation system pH value to 4.2~5.5.
2. environmental-protecting chemical according to claim 1 sinks nickel solution, which is characterized in that the nickel salt is nickel sulfate, oxidation
It is one or more in nickel, nickelous carbonate.
3. environmental-protecting chemical according to claim 1 sinks nickel solution, which is characterized in that the reducing agent is ortho phosphorous acid
It is one or more in sodium, sodium hypophosphite, potassium hypophosphite.
4. environmental-protecting chemical according to claim 1 sinks nickel solution, which is characterized in that the complexing agent is lactic acid, winestone
It is one or more in acid, citric acid, adipic acid.
5. environmental-protecting chemical according to claim 1 sinks nickel solution, which is characterized in that the buffer is glacial acetic acid.
6. environmental-protecting chemical as described in claim 1 sinks nickel solution, which is characterized in that the stabilizer is potassium antimony tartrate,
At least one of bismuth citrate, bismuth oxide.
7. environmental-protecting chemical as described in claim 1 sinks nickel solution, which is characterized in that every 1 liter of environmental-protecting chemical sinks nickel
Solution includes consisting of ingredient：
With buffer regulation system pH value to 4.2~5.5,
Surplus is deionized water.
8. environmental-protecting chemical as described in claim 1 sinks nickel solution, which is characterized in that every 1 liter of environmental-protecting chemical sinks nickel
Solution includes consisting of ingredient：
With buffer regulation system pH value to 4.2~5.5,
Surplus is deionized water.
9. environmental-protecting chemical as described in claim 1 sinks nickel solution, which is characterized in that every 1 liter of environmental-protecting chemical sinks nickel
Solution includes consisting of ingredient：
With buffer regulation system pH value to 4.2~5.5,
Surplus is deionized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810058164.8A CN108251824A (en) | 2018-01-22 | 2018-01-22 | A kind of environmental-protecting chemical sinks nickel solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810058164.8A CN108251824A (en) | 2018-01-22 | 2018-01-22 | A kind of environmental-protecting chemical sinks nickel solution |
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| Publication Number | Publication Date |
|---|---|
| CN108251824A true CN108251824A (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810058164.8A Pending CN108251824A (en) | 2018-01-22 | 2018-01-22 | A kind of environmental-protecting chemical sinks nickel solution |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518172A (en) * | 2018-11-23 | 2019-03-26 | 东莞市智源电子科技有限公司 | Apply the electroless nickel solution in wafer-level packaging chemical nickel gold technique |
| CN111424266A (en) * | 2020-03-19 | 2020-07-17 | 西安工程大学 | Preparation method of nickel-coated graphite composite particles |
| CN112663033A (en) * | 2020-12-16 | 2021-04-16 | 昆山成功环保科技有限公司 | Environment-friendly chemical nickel deposition solution |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101314848A (en) * | 2008-07-16 | 2008-12-03 | 中山大学 | Non-ammonia type plating solution for chemical nickel plating |
| CN101831643A (en) * | 2010-05-24 | 2010-09-15 | 深圳市华傲创表面技术有限公司 | Chemical nickel-plating stabilizer and chemical nickel plating solution |
| CN102994988A (en) * | 2012-11-26 | 2013-03-27 | 中国科学院金属研究所 | Direct chemical nickel-phosphate plating solution and chemical nickel-phosphate plating coating process for magnesium alloy |
| CN105408518A (en) * | 2013-07-16 | 2016-03-16 | 韩国生产技术研究院 | Electroless nickel plating solution, electroless nickel plating method using same, and flexible nickel plated layer formed by using same |
-
2018
- 2018-01-22 CN CN201810058164.8A patent/CN108251824A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101314848A (en) * | 2008-07-16 | 2008-12-03 | 中山大学 | Non-ammonia type plating solution for chemical nickel plating |
| CN101831643A (en) * | 2010-05-24 | 2010-09-15 | 深圳市华傲创表面技术有限公司 | Chemical nickel-plating stabilizer and chemical nickel plating solution |
| CN102994988A (en) * | 2012-11-26 | 2013-03-27 | 中国科学院金属研究所 | Direct chemical nickel-phosphate plating solution and chemical nickel-phosphate plating coating process for magnesium alloy |
| CN105408518A (en) * | 2013-07-16 | 2016-03-16 | 韩国生产技术研究院 | Electroless nickel plating solution, electroless nickel plating method using same, and flexible nickel plated layer formed by using same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518172A (en) * | 2018-11-23 | 2019-03-26 | 东莞市智源电子科技有限公司 | Apply the electroless nickel solution in wafer-level packaging chemical nickel gold technique |
| CN111424266A (en) * | 2020-03-19 | 2020-07-17 | 西安工程大学 | Preparation method of nickel-coated graphite composite particles |
| CN112663033A (en) * | 2020-12-16 | 2021-04-16 | 昆山成功环保科技有限公司 | Environment-friendly chemical nickel deposition solution |
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Application publication date: 20180706 |