CN101429675A - Production method of galvanized coating stripping solution - Google Patents
Production method of galvanized coating stripping solution Download PDFInfo
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- CN101429675A CN101429675A CNA2008102343689A CN200810234368A CN101429675A CN 101429675 A CN101429675 A CN 101429675A CN A2008102343689 A CNA2008102343689 A CN A2008102343689A CN 200810234368 A CN200810234368 A CN 200810234368A CN 101429675 A CN101429675 A CN 101429675A
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- galvanized coating
- deplating
- stripping solution
- coating stripping
- liquid
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Abstract
The invention relates to a preparation method for deplating liquid for galvanized coating which belongs to the technical field of plating, in particular relates to the technical field of the deplating of the galvanized coating. The deplating liquid which takes methylsulphonic acid and polyethylene glycol as main raw materials has innocuity, low corrosiveness, simple waste liquor recovery, stable reaction, and high production efficiency. The backing material of a deplated product has a bright surface without oxidation in the air. Therefore, the deplating liquid belongs to the green and environmental protection deplating liquid, and can be widely applied to the deplating of the galvanized coating of the outer leads of a PCB board (printed circuit board) and an IC integrated circuit.
Description
Technical field
Present technique relates to the electroplating technology field, relates in particular to the strip technical field of electrolytic coating.
Background technology
At present, it is main raw material that sulfuric acid or nitric acid are generally adopted in the preparation of galvanized coating stripping solution, and the decoating liquid that this method is prepared is acid strong, and is very strong to the corrodibility of product, also can decompose to discharge toxic gas in the strip process, and operator's health is produced injury.
Summary of the invention
The problem that there is deep-etching in purpose of the present invention and operator is produced murder by poisoning at above-mentioned decoating liquid, the applicant has carried out research and has improved, the preparation method of another kind of galvanized coating stripping solution is provided, its manufacturing process is simple, cost is low, strip is effective, and it is mainly used in the strip of tin and tin alloy electric plating layer.
Technical scheme of the present invention is as follows:
Galvanized coating stripping solution consists of by mass ratio
Methylsulphonic acid 20～40%
Polyoxyethylene glycol 10～15%
Dodecyl diglycollic amide 0.3～0.5%
Surplus is a water.
Wherein the molecular weight of polyoxyethylene glycol is between 400～1000.
Said components is mixed,, stirred 2～4 hours, make galvanized coating stripping solution 10～30 ℃ of temperature.
Technique effect of the present invention is as follows:
1. avoid using the deep-etching shortcoming of strong acid existence and the murder by poisoning that operator are produced, and reach environmental requirement.
2. this decoating liquid moiety and preparation technology are simple, stable reaction.Wastewater treatment after decoating liquid uses is simple.
3. this decoating liquid is easy to use, the efficient height that strip is produced.
4. the polyoxyethylene glycol composition in the decoating liquid has provide protection to the substrate surface that strip goes out, and makes the substrate surface light, has overcome nitric acid and the more coarse shortcoming of sulfuric acid strip substrate surface, and oxidation does not take place in air the substrate surface that strip goes out.
Embodiment
The present invention further specifies by following examples.
Embodiment one
Methylsulphonic acid 285.7 grams, polyoxyethylene glycol (molecular weight 400) 100 grams that take by weighing mass content 70% join in the beaker, press mass ratio and add pure water 611.3 grams and 3 gram dodecyl diglycollic amides, solution in the beaker is heated to 10 ℃, fully stirred 4 hours with agitator, the solution that stirs is filtered with 1um filter paper, filter impurity wherein, obtain 1000 gram methylsulphonic acid decoating liquids.
With the methylsulphonic acid decoating liquid that obtains, the pure tin coating of stripping copper base material and the Ni-based material of iron sees the following form 1:
(table 1)
Embodiment two
Taking by weighing mass content is that 70% methylsulphonic acid, 428.6 grams, polyoxyethylene glycol (molecular weight 600) 130 grams join in the beaker, press mass ratio and add pure water 437.4 grams and 4 gram dodecyl diglycollic amides, solution in the beaker is heated to 20 ℃, fully stirred 3 hours with agitator, the solution that stirs is filtered with 5um filter paper, obtain 1000 gram methylsulphonic acid decoating liquids.
With the methylsulphonic acid decoating liquid that obtains, the tin copper coating of stripping copper base material and the Ni-based material of iron sees Table 2:
(table 2)
Embodiment three
Taking by weighing mass content is that 70% methylsulphonic acid, 571.4 grams, polyoxyethylene glycol (molecular weight 1000) 150 grams join in the beaker, press mass ratio and add pure water 273.6 grams and 5 gram dodecyl diglycollic amides, solution in the beaker is heated to 30 ℃, fully stirred 2 hours with agitator, the solution that stirs is filtered with 10um filter paper, obtain 1000 gram methylsulphonic acid decoating liquids.
With the methylsulphonic acid decoating liquid that obtains, the tin bismuth layer of stripping copper base material and the Ni-based material of iron sees Table 3
(table 3)
Annotate: above-mentioned decoating liquid can also be prepared with the methylsulphonic acid electroplating effluent, control methylsulphonic acid content can reach same strip effect than (can measure concentration by sodium hydroxide titrimetry method) in the claim scope, reached the purpose that waste liquid reclaims simultaneously.
Claims (2)
1. the preparation method of a galvanized coating stripping solution is characterized in that:
Described decoating liquid consists of by mass ratio
Methylsulphonic acid 20～40%
Polyoxyethylene glycol 10～15%
Dodecyl diglycollic amide 0.3～0.5%
Surplus is a water;
Said components is mixed,, stirred 2～4 hours, make galvanized coating stripping solution 10～30 ℃ of temperature.
2. according to the preparation method of the described galvanized coating stripping solution of claim 1, it is characterized in that: the molecular weight of described polyoxyethylene glycol is between 400～1000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102343689A CN101429675B (en) | 2008-11-19 | 2008-11-19 | Production method of galvanized coating stripping solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102343689A CN101429675B (en) | 2008-11-19 | 2008-11-19 | Production method of galvanized coating stripping solution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101429675A true CN101429675A (en) | 2009-05-13 |
| CN101429675B CN101429675B (en) | 2010-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102343689A Active CN101429675B (en) | 2008-11-19 | 2008-11-19 | Production method of galvanized coating stripping solution |
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| CN (1) | CN101429675B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812721A (en) * | 2010-04-02 | 2010-08-25 | 上海元豪表面处理有限公司 | Method for preparing electrolytic stripping liquid by utilizing tinned liquid cylinder foot, electrolytic stripping liquid and application method thereof |
| CN102330112A (en) * | 2011-08-18 | 2012-01-25 | 华星集团环保产业发展有限公司 | Method for recovering tin and lead from waste printed circuit board and device for same |
| CN102828226A (en) * | 2012-08-31 | 2012-12-19 | 昆山艾森半导体材料有限公司 | Recyclable environment friendly electrolytic stripping solution, preparation method and usage method |
| CN103498188A (en) * | 2013-09-23 | 2014-01-08 | 无锡华友微电子有限公司 | High-speed plating line tool stripping solution and preparation method thereof |
| CN104313580A (en) * | 2014-09-23 | 2015-01-28 | 明光旭升科技有限公司 | Chemical deplating solution suitable for removing tin-nickel plating layer on brass surface |
| CN105948212A (en) * | 2016-06-16 | 2016-09-21 | 上海华友金裕微电子有限公司 | Organic acid sinking agent preparing method |
| CN106757032A (en) * | 2016-11-29 | 2017-05-31 | 无锡华友微电子有限公司 | A kind of compounding method of organic acid nickel stripper |
| CN112144102A (en) * | 2020-09-10 | 2020-12-29 | 无锡华友微电子有限公司 | Recovered electrolyte for LED electroplating alloy and preparation method thereof |
-
2008
- 2008-11-19 CN CN2008102343689A patent/CN101429675B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812721A (en) * | 2010-04-02 | 2010-08-25 | 上海元豪表面处理有限公司 | Method for preparing electrolytic stripping liquid by utilizing tinned liquid cylinder foot, electrolytic stripping liquid and application method thereof |
| CN102330112A (en) * | 2011-08-18 | 2012-01-25 | 华星集团环保产业发展有限公司 | Method for recovering tin and lead from waste printed circuit board and device for same |
| CN102828226A (en) * | 2012-08-31 | 2012-12-19 | 昆山艾森半导体材料有限公司 | Recyclable environment friendly electrolytic stripping solution, preparation method and usage method |
| CN103498188A (en) * | 2013-09-23 | 2014-01-08 | 无锡华友微电子有限公司 | High-speed plating line tool stripping solution and preparation method thereof |
| CN104313580A (en) * | 2014-09-23 | 2015-01-28 | 明光旭升科技有限公司 | Chemical deplating solution suitable for removing tin-nickel plating layer on brass surface |
| CN105948212A (en) * | 2016-06-16 | 2016-09-21 | 上海华友金裕微电子有限公司 | Organic acid sinking agent preparing method |
| CN106757032A (en) * | 2016-11-29 | 2017-05-31 | 无锡华友微电子有限公司 | A kind of compounding method of organic acid nickel stripper |
| CN112144102A (en) * | 2020-09-10 | 2020-12-29 | 无锡华友微电子有限公司 | Recovered electrolyte for LED electroplating alloy and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101429675B (en) | 2010-09-29 |
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