CN108823556A - A kind of no cyanogen chemical plating liquid and its preparation method and application - Google Patents
A kind of no cyanogen chemical plating liquid and its preparation method and application Download PDFInfo
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- CN108823556A CN108823556A CN201810765868.9A CN201810765868A CN108823556A CN 108823556 A CN108823556 A CN 108823556A CN 201810765868 A CN201810765868 A CN 201810765868A CN 108823556 A CN108823556 A CN 108823556A
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- plating liquid
- chemical plating
- solution
- cyanogen
- cyanogen chemical
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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
- C23C18/42—Coating with noble metals
- C23C18/44—Coating with noble metals using reducing agents
Abstract
The invention discloses a kind of no cyanogen chemical plating liquids and its preparation method and application, belong to chemical silvering technical field.Silver plating liquid of the invention includes following each component：Silver ion source 2~5g/L of object, 15~20g/L of pH adjusting agent, N-hydroxyethyl-ethylenediamine triacetic acid 20~40g/L of trisodium, 6~12g/L of imidazoles, 2~5g/L of brightener, surplus is water.The present invention is easy to get without the raw material of cyanogen chemical plating liquid, cost is relatively low, preparation is simple, environmentally protective, and binding force of cladding material is good and bright, and it is silver-plated multi-field with electronic products chemical silvering etc. can to meet decoration chemistry.
Description
Technical field
The invention belongs to chemical silvering technical fields, more specifically to a kind of no cyanogen chemical plating liquid and its preparation
Methods and applications.
Background technique
Silver coating has very high electric conductivity and antioxygenic property, and beautiful glossy, be widely used to ornament and
The fields such as electronic products.It is silver-plated to be primarily due to cyanogen mostly or using there is cyanogen silver-plated for Electroless Silver Plating both at home and abroad at present
Liquid stability is good, coating crystallization is careful, seldom occurs turning to be yellow or nigrescence phenomenon.But cyanide is severe toxicity, to human body and environment
It is very harmful, require have good exhaust equipment and wastewater treatment condition when production, with countries in the world environmental protection consciousness
Reinforcement and relevant policies appearance, there is cyanogen is silver-plated to be increasingly becoming backward industry, become the technique that limitation is declared, principle is superseded.
In the case, a kind of toxicity is low or nontoxic, development and application of the relatively suitable no cyanogen chemical plating liquid of cost become chemistry
One major subjects in plating field.
Summary of the invention
Goal of the invention：In view of the above-mentioned problems existing in the prior art, the purpose of the present invention is to provide a kind of raw materials to be easy to get,
Preparation is simple, stability is good, can add repeatedly reuse without cyanogen chemical plating liquid, it is a further object of the present invention to provide this
Preparation method without cyanogen chemical plating liquid, further object of the present invention are to provide the application without cyanogen chemical plating liquid.
Technical solution：To solve the above-mentioned problems, the technical solution adopted in the present invention is as follows：
A kind of no cyanogen chemical plating liquid, including following each component：Silver ion source 2~5g/L of object, pH adjusting agent 15~
20g/L, N-hydroxyethyl-ethylenediamine triacetic acid 20~40g/L of trisodium, 6~12g/L of imidazoles, 2~5g/L of brightener, surplus is water.
Wherein, silver ion source object is silver nitrate, and the silver nitrate is that analysis is pure.
The pH adjusting agent is nitric acid, and the concentration of the nitric acid is 68%.
The brightener is polyethylene glycol or polyethers.
The invention further relates to the preparation methods without cyanogen chemical plating liquid, include the following steps：
(1) imidazoles is dissolved in the water, obtains solution A；
(2) N-hydroxyethyl-ethylenediamine triacetic acid trisodium is dissolved in the water, obtains solution B；
(3) solution A is mixed with solution B, obtains solution C；
(4) pH adjusting agent is added into solution C, obtains solution D after mixing；
(5) silver ion source object is added into solution D, obtains solution E after mixing；
(6) brightener is added into solution E, after mixing plus water constant volume is to get no cyanogen chemical plating liquid.
Wherein, the quality of the water in the step 1 is 10~40 times of imidazoles, and the quality of the water in the step 2 is N-
5~10 times of trisodium hydroxyethylene diamine triacetate.
The pH value of acquired solution D is 2~4.
The invention further relates to the application methods of no cyanogen chemical plating liquid, and 30~50 DEG C will be heated to without cyanogen chemical plating liquid,
Soaking time is 2~3min.
Beneficial effect：Compared with the prior art, beneficial effects of the present invention are：
(1) no cyanogen chemical plating liquid of the invention does not contain cyanide, does not contain national standard《Integrated wastewater discharge standard》
(GB8978-1996) the first pollutant in, waste liquid and flushing liquor are easily processed, environmentally protective.
(2) raw material of no cyanogen chemical plating liquid of the invention is easy to get, cost is relatively low, preparation is simple.
(3) stability of solution of no cyanogen chemical plating liquid of the invention is good, can add reuse repeatedly.
(4) binding force of cladding material of no cyanogen chemical plating liquid of the invention is good and bright, can meet decoration chemistry it is silver-plated and
Electronic products chemical silvering etc. is multi-field.
Specific embodiment
The present invention is further described below combined with specific embodiments below.
Embodiment 1
A kind of no cyanogen chemical plating liquid of the present embodiment, including following each component (silver plating liquid total amount is 1L)：Silver nitrate 2g,
Nitric acid 15g, N-hydroxyethyl-ethylenediamine triacetic acid trisodium 20g, imidazoles 6g, polyethylene glycol 2g, remaining is water.Wherein, silver nitrate is
Main salt, pure to analyze, the concentration of nitric acid is 68%, its effect is the pH for adjusting solution, N-hydroxyethyl-ethylenediamine triacetic acid three
Sodium and imidazoles are complexing agents, and polyethylene glycol is brightener.
The preparation method without cyanogen chemical plating liquid, includes the following steps：
(1) imidazoles is dissolved in 200g water, obtains solution A；
(2) N-hydroxyethyl-ethylenediamine triacetic acid trisodium is dissolved in 200g water, obtains solution B；
(3) solution A is mixed with solution B, obtains solution C；
(4) nitric acid is added into solution C, obtains solution D after mixing, the pH of the solution D is 3；
(5) silver nitrate is added into solution D, obtains solution E after mixing；
(6) polyethylene glycol is added into solution E, after mixing plus water is settled to 1L to get no cyanogen chemical plating liquid.
The application method without cyanogen chemical plating liquid, including：Article to be plated immersion is heated to 30~50 DEG C of above-mentioned nothing
Cyanogen chemical plating liquid takes out after impregnating 2~3min.
The silver plating liquid stability of the present embodiment is good, can add reuse repeatedly, and gained binding force of cladding material is good and bright,
Thickness of coating is 3~5 μm, is bent 3~5 times and falls off without silver layer, exposes 3 months in air without obvious jaundice nigrescence phenomenon.
Embodiment 2
A kind of no cyanogen chemical plating liquid of the present embodiment, including following each component (silver plating liquid total amount is 1L)：Silver nitrate 3g,
Nitric acid 15g, N-hydroxyethyl-ethylenediamine triacetic acid trisodium 25g, imidazoles 8g, polyethylene glycol 3g, remaining is water.
The preparation method without cyanogen chemical plating liquid, includes the following steps：
(1) imidazoles is dissolved in 200g water, obtains solution A；
(2) N-hydroxyethyl-ethylenediamine triacetic acid trisodium is dissolved in 200g water, obtains solution B；
(3) solution A is mixed with solution B, obtains solution C；
(4) nitric acid is added into solution C, obtains solution D after mixing, the pH value of the solution D is 2；
(5) silver nitrate is added into solution D, obtains solution E after mixing；
(6) polyethylene glycol is added into solution E, after mixing plus water is settled to 1L to get no cyanogen chemical plating liquid.
The application method without cyanogen chemical plating liquid, including：Article to be plated immersion is heated to 30~50 DEG C of above-mentioned nothing
Cyanogen chemical plating liquid takes out after impregnating 2~3min.
The silver plating liquid stability of the present embodiment is good, can add reuse repeatedly, and gained binding force of cladding material is good and bright,
Thickness of coating is 3~5 μm, is bent 3~5 times and falls off without silver layer, exposes 3 months in air without obvious jaundice nigrescence phenomenon.
Embodiment 3
A kind of no cyanogen chemical plating liquid of the present embodiment, including following each component (silver plating liquid total amount is 1L)：Silver nitrate 4g,
Nitric acid 20g, N-hydroxyethyl-ethylenediamine triacetic acid trisodium 30g, imidazoles 10g, polyethylene glycol 4g, remaining is water.
The preparation method without cyanogen chemical plating liquid, includes the following steps：
(1) imidazoles is dissolved in 200g water, obtains solution A；
(2) N-hydroxyethyl-ethylenediamine triacetic acid trisodium is dissolved in 200g water, obtains solution B；
(3) solution A is mixed with solution B, obtains solution C；
(4) nitric acid is added into solution C, obtains solution D after mixing, the pH value of the solution D is 3；
(5) silver nitrate is added into solution D, obtains solution E after mixing；
(6) polyethylene glycol is added into solution E, after mixing plus water is settled to 1L to get no cyanogen chemical plating liquid.
The application method without cyanogen chemical plating liquid, including：Article to be plated immersion is heated to 30~50 DEG C of above-mentioned nothing
Cyanogen chemical plating liquid takes out after impregnating 2~3min.
The silver plating liquid stability of the present embodiment is good, can add reuse repeatedly, and gained binding force of cladding material is good and bright,
Thickness of coating is 3~5 μm, is bent 3~5 times and falls off without silver layer, exposes 3 months in air without obvious jaundice nigrescence phenomenon.
Embodiment 4
A kind of no cyanogen chemical plating liquid of the present embodiment, including following each component (silver plating liquid total amount is 1L)：Silver nitrate 5g,
Nitric acid 20g, N-hydroxyethyl-ethylenediamine triacetic acid trisodium 40g, imidazoles 12g, polyethylene glycol 5g, remaining is water.
The preparation method without cyanogen chemical plating liquid, includes the following steps：
(1) imidazoles is dissolved in 200g water, obtains solution A；
(2) N-hydroxyethyl-ethylenediamine triacetic acid trisodium is dissolved in 200g water, obtains solution B；
(3) solution A is mixed with solution B, obtains solution C；
(4) nitric acid is added into solution C, obtains solution D after mixing, the pH value of the solution D is 2；
(5) silver nitrate is added into solution D, obtains solution E after mixing；
(6) polyethylene glycol is added into solution E, after mixing plus water is settled to 1L to get no cyanogen chemical plating liquid.
The application method without cyanogen chemical plating liquid, including：Article to be plated immersion is heated to 30~50 DEG C of above-mentioned nothing
Cyanogen chemical plating liquid takes out after impregnating 2~3min.
The silver plating liquid stability of the present embodiment is good, can add reuse repeatedly, and gained binding force of cladding material is good and bright,
Thickness of coating is 3~5 μm, is bent 3~5 times and falls off without silver layer, exposes 3 months in air without obvious jaundice nigrescence phenomenon.
Claims (10)
1. a kind of no cyanogen chemical plating liquid, which is characterized in that including following each component：Silver ion source 2~5g/L of object, pH are adjusted
15~20g/L of agent, N-hydroxyethyl-ethylenediamine triacetic acid 20~40g/L of trisodium, 6~12g/L of imidazoles, 2~5g/L of brightener, surplus
For water.
2. no cyanogen chemical plating liquid according to claim 1, which is characterized in that silver ion source object is silver nitrate.
3. no cyanogen chemical plating liquid according to claim 2, which is characterized in that the silver nitrate is that analysis is pure.
4. no cyanogen chemical plating liquid according to claim 1, which is characterized in that the pH adjusting agent is nitric acid.
5. no cyanogen chemical plating liquid according to claim 4, which is characterized in that the concentration of the nitric acid is 68%.
6. no cyanogen chemical plating liquid according to claim 1, which is characterized in that the brightener is polyethylene glycol or gathers
Ether.
7. a kind of preparation method of such as no cyanogen chemical plating liquid according to any one of claims 1 to 6, which is characterized in that packet
Include following steps：
(1) imidazoles is dissolved in the water, obtains solution A；
(2) N-hydroxyethyl-ethylenediamine triacetic acid trisodium is dissolved in the water, obtains solution B；
(3) solution A is mixed with solution B, obtains solution C；
(4) pH adjusting agent is added into solution C, obtains solution D after mixing；
(5) silver ion source object is added into solution D, obtains solution E after mixing；
(6) brightener is added into solution E, after mixing plus water constant volume is to get no cyanogen chemical plating liquid.
8. the preparation method of no cyanogen chemical plating liquid according to claim 7, which is characterized in that the water in the step 1
Quality be 10~40 times of imidazoles, the quality of the water in the step 2 is the 5~10 of N-hydroxyethyl-ethylenediamine triacetic acid trisodium
Times.
9. the preparation method of no cyanogen chemical plating liquid according to claim 7, which is characterized in that the pH value of acquired solution D
It is 2~4.
10. a kind of application of such as no cyanogen chemical plating liquid according to any one of claims 1 to 6, which is characterized in that will be without cyanogen
Chemical plating liquid is heated to 30~50 DEG C, and soaking time is 2~3min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810765868.9A CN108823556A (en) | 2018-07-12 | 2018-07-12 | A kind of no cyanogen chemical plating liquid and its preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810765868.9A CN108823556A (en) | 2018-07-12 | 2018-07-12 | A kind of no cyanogen chemical plating liquid and its preparation method and application |
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| Publication Number | Publication Date |
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| CN108823556A true CN108823556A (en) | 2018-11-16 |
Family
ID=64137218
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5186984A (en) * | 1990-06-28 | 1993-02-16 | Monsanto Company | Silver coatings |
| US20040040852A1 (en) * | 2002-08-30 | 2004-03-04 | Shipley Company, L.L.C. | Plating method |
| CN101012552A (en) * | 2007-01-27 | 2007-08-08 | 吕琳 | Steady multitime supplementary fiber chemical silver coating method |
| CN101933127A (en) * | 2008-02-01 | 2010-12-29 | 欧恩吉电子化学品有限责任公司 | Methods and compositions for depositing silver onto a metal surface |
| CN105112896A (en) * | 2015-08-04 | 2015-12-02 | 永利电子铜陵有限公司 | Chemical silver plating technology of PCBs |
| CN106222633A (en) * | 2016-07-25 | 2016-12-14 | 嘉兴学院 | A kind of alkalescence half light is without cyanogen displacement chemical silver plating plating solution and preparation method thereof |
| US9663667B2 (en) * | 2013-01-22 | 2017-05-30 | Andre Reiss | Electroless silvering ink |
-
2018
- 2018-07-12 CN CN201810765868.9A patent/CN108823556A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5186984A (en) * | 1990-06-28 | 1993-02-16 | Monsanto Company | Silver coatings |
| US20040040852A1 (en) * | 2002-08-30 | 2004-03-04 | Shipley Company, L.L.C. | Plating method |
| CN101012552A (en) * | 2007-01-27 | 2007-08-08 | 吕琳 | Steady multitime supplementary fiber chemical silver coating method |
| CN101933127A (en) * | 2008-02-01 | 2010-12-29 | 欧恩吉电子化学品有限责任公司 | Methods and compositions for depositing silver onto a metal surface |
| US9663667B2 (en) * | 2013-01-22 | 2017-05-30 | Andre Reiss | Electroless silvering ink |
| CN105112896A (en) * | 2015-08-04 | 2015-12-02 | 永利电子铜陵有限公司 | Chemical silver plating technology of PCBs |
| CN106222633A (en) * | 2016-07-25 | 2016-12-14 | 嘉兴学院 | A kind of alkalescence half light is without cyanogen displacement chemical silver plating plating solution and preparation method thereof |
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Application publication date: 20181116 |
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