CN101092696A - Fluid for removing vacuum metallic coated nickel layer for decorating nonmetallic surface - Google Patents
Fluid for removing vacuum metallic coated nickel layer for decorating nonmetallic surface Download PDFInfo
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- CN101092696A CN101092696A CN 200710058184 CN200710058184A CN101092696A CN 101092696 A CN101092696 A CN 101092696A CN 200710058184 CN200710058184 CN 200710058184 CN 200710058184 A CN200710058184 A CN 200710058184A CN 101092696 A CN101092696 A CN 101092696A
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- China
- Prior art keywords
- iron trichloride
- nitric acid
- sodium
- chlor
- high purity
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Abstract
This invention relates to a coating stripping solution for metal surface vacuum-coated with nickel. The coating stripping solution comprises: FeCl3 0.01 mol/L, HNO3 0.02 mol/L, HCl 0.08 mol/L, and NaCl 0.02 mol/L. The coating stripping solution has such advantages as rapid reaction, high stability, and uniform coating stripping, no metal residue, no side corrosion, low cost, high production efficiency, and easy control of the product quality.
Description
Technical field
The present invention relates to metallic nickel and handle soup, particularly a kind of decoating liquid that is used for nonmetallic surface decoration vacuum metal coating nickel.
Technical background
PC is non metallic decorative surfaces such as polycarbonate material and acrylic at present, takes vacuum metal film plating usually, uses the method that applies acidproof paint to hide part metals coating then, re-uses chemical process the metal that does not have to hide is partly removed.Remove metal and adopt the way of strip industry in the past, it moves back nickel technology, and generally to adopt concentration be the salpeter solution of 30%-50%, use temperature is at 20-45 ℃, belong to simple acid and metal reaction, speed of response is slow, and speed of response can slow down rapidly along with the reduction of acid concentration, and operating environment is poor, pollute easily, the variation of salpeter solution concentration, make in the process of whole corroding metal and exist problems such as metal plating is difficult to remove fully, lateral erosion, therefore, production efficiency is low, final product quality control difficulty is big.
Summary of the invention
At above technological difficulties, the invention provides a kind of decoating liquid that nonmetallic surface is decorated vacuum metal coating nickel that is used for, mainly comprise iron trichloride, nitric acid, hydrochloric acid, sodium-chlor, high purity water.
Concrete amount of substance concentration (mol/L) is:
Iron trichloride 0.01
Nitric acid 0.55
Hydrochloric acid 0.4
Sodium-chlor 0.02
Preparation process:
Step 1: be taken as expectation configuration metallic nickel decoating liquid total amount 40～50% volumetrical high purity waters earlier and put into container, add nitric acid by concentration ratio again;
Step 2: by concentration ratio iron trichloride and solid sodium chloride are put into solution, fully stir, iron trichloride and sodium-chlor are fully dissolved; Add concentrated hydrochloric acid and concentrated nitric acid by concentration ratio then;
Step 3: add high purity water at last to estimating configuration metallic nickel decoating liquid total amount;
Step 4: filtering liquid medicine, remove the impurity in the iron trichloride.
Under acidic conditions, decoating liquid and metallic nickel carry out following galvanic cell reaction, can make nickel form water-soluble ion, remove after water cleans.
Galvanic cell reaction 2Fe
3+(aq)+Ni (s) → 2Fe
2+(aq)+Ni
2+(aq)
Standard eleotromotive force E0=E0 (the Fe of this galvanic cell
3+/ Fe
2+)-E0 (Ni
2+/ Ni)=1.028V
Along with the variation of strip effects of ion concentration, the electromotive force E of the galvanic cell that soup and metallic nickel constitute changes in the 0.98-1.22V scope.According to the chemical reaction equilibrium shifting principle, when the electromotive force E of galvanic cell＞0, reaction is carried out to the right automatically, promptly utilizes Fe
3+Ion and metallic nickel reaction can obtain Fe
2+And Ni
2+Ion, Fe
2+And Ni
2+Ion is water-soluble, and the ion color is green.The effect of hydrochloric acid and nitric acid can strengthen the acidity of soup, promptly reduces the pH value, and its effect is significantly to accelerate etching speed, shortens etching period.Add small amount of sodium chloride, can strengthen the ionic strength of soup, strengthen electroconductibility, accelerate the galvanic cell speed of response, alleviate the generation of lateral erosion simultaneously.
Owing to adopt new prescription and be different from existing strip method, this soup has that speed of response is fast, stability is high, remove metal plating evenly, no metal residual, no lateral erosion, cheap, advantages such as production efficiency is high, the easy control of final product quality, remedied the defective of prior art.
Embodiment
Move back the compound method of nickel soup
Be formulated as example with 25L mark bucket soup: get the 15L high purity water and put into container, to going into the 0.1L concentrated nitric acid, 40.7g iron trichloride and 29.2g solid sodium chloride are put into solution, fully stir, iron trichloride and sodium-chlor are fully dissolved, add 0.48L concentrated nitric acid and 0.31L concentrated hydrochloric acid then, add high purity water at last to 25L.Remove by filter the impurity in the iron trichloride, finally make 25 liters of ZH-1 and move back the nickel soup.
Claims (1)
1. one kind is used for the decoating liquid that nonmetallic surface is decorated vacuum metal coating nickel, comprises iron trichloride, nitric acid, hydrochloric acid, sodium-chlor, high purity water, and it contains amount of substance concentration and is:
Iron trichloride 0.01mol/L
Nitric acid 0.55mol/L
Hydrochloric acid 0.4mol/L
Sodium-chlor 0.02mol/L
Preparation process:
Step 1: be taken as expectation configuration metallic nickel decoating liquid total amount 40～50% volumetrical high purity waters earlier and put into container, add nitric acid by concentration ratio again;
Step 2: by concentration ratio iron trichloride and solid sodium chloride are put into solution, fully stir, iron trichloride and sodium-chlor are fully dissolved; Add concentrated hydrochloric acid and concentrated nitric acid by concentration ratio then;
Step 3: add high purity water at last to estimating configuration metallic nickel decoating liquid total amount;
Step 4: filtering liquid medicine, remove the impurity in the iron trichloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710058184 CN101092696A (en) | 2007-07-18 | 2007-07-18 | Fluid for removing vacuum metallic coated nickel layer for decorating nonmetallic surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710058184 CN101092696A (en) | 2007-07-18 | 2007-07-18 | Fluid for removing vacuum metallic coated nickel layer for decorating nonmetallic surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101092696A true CN101092696A (en) | 2007-12-26 |
Family
ID=38991128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710058184 Pending CN101092696A (en) | 2007-07-18 | 2007-07-18 | Fluid for removing vacuum metallic coated nickel layer for decorating nonmetallic surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101092696A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103173768A (en) * | 2013-03-26 | 2013-06-26 | 广东工业大学 | Etching solution and preparation method thereof |
| CN103572306A (en) * | 2012-07-30 | 2014-02-12 | 比亚迪股份有限公司 | Deplating solution for removing nickel on cooper surface, preparation method thereof, and method for removing nickel on cooper surface |
| CN105297122A (en) * | 2015-11-13 | 2016-02-03 | 天津现代职业技术学院 | Special stripping solution for automatic electroplating production line of electronic components |
| CN110205631A (en) * | 2019-07-08 | 2019-09-06 | 范成勇 | Decoating liquid and strip method for ABS material stripping layers of copper surface nickel layer |
| CN110629223A (en) * | 2019-10-15 | 2019-12-31 | 上海第二工业大学 | Deplating method for metal coating on surface of waste ABS electroplated part |
| CN114807944A (en) * | 2021-01-28 | 2022-07-29 | 江苏悦锌达新材料有限公司 | Environment-friendly deplating agent and preparation method and use method thereof |
-
2007
- 2007-07-18 CN CN 200710058184 patent/CN101092696A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103572306A (en) * | 2012-07-30 | 2014-02-12 | 比亚迪股份有限公司 | Deplating solution for removing nickel on cooper surface, preparation method thereof, and method for removing nickel on cooper surface |
| CN103572306B (en) * | 2012-07-30 | 2016-04-13 | 比亚迪股份有限公司 | For copper surface decoating liquid moving back nickel and preparation method thereof and the method for copper surface nickel of decorporating |
| CN103173768A (en) * | 2013-03-26 | 2013-06-26 | 广东工业大学 | Etching solution and preparation method thereof |
| CN103173768B (en) * | 2013-03-26 | 2015-08-12 | 广东工业大学 | A kind of etching solution and preparation method thereof |
| CN105297122A (en) * | 2015-11-13 | 2016-02-03 | 天津现代职业技术学院 | Special stripping solution for automatic electroplating production line of electronic components |
| CN105297122B (en) * | 2015-11-13 | 2017-12-19 | 天津现代职业技术学院 | The special decoating liquid of electronic component automatic electroplating line |
| CN110205631A (en) * | 2019-07-08 | 2019-09-06 | 范成勇 | Decoating liquid and strip method for ABS material stripping layers of copper surface nickel layer |
| CN110629223A (en) * | 2019-10-15 | 2019-12-31 | 上海第二工业大学 | Deplating method for metal coating on surface of waste ABS electroplated part |
| CN114807944A (en) * | 2021-01-28 | 2022-07-29 | 江苏悦锌达新材料有限公司 | Environment-friendly deplating agent and preparation method and use method thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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