CN103173808A - Environmental-friendly tin plating electrolyte - Google Patents
Environmental-friendly tin plating electrolyte Download PDFInfo
- Publication number
- CN103173808A CN103173808A CN 201110432780 CN201110432780A CN103173808A CN 103173808 A CN103173808 A CN 103173808A CN 201110432780 CN201110432780 CN 201110432780 CN 201110432780 A CN201110432780 A CN 201110432780A CN 103173808 A CN103173808 A CN 103173808A
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- CN
- China
- Prior art keywords
- environmental
- tin plating
- plating electrolyte
- plating
- sulfonic acid
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses an environmental-friendly tin plating electrolyte, and the environmental-friendly tin plating electrolyte is prepared from the following components in percentage by weight: 5-30 g/L of stannous ethanesulfonic acid as organic tin sulfonic salt, 100-250 g/L of alkanol sulfonic acid as organic acid, 50-250 g/L of thiourea as a complexing agent, 1-10 g/L of pyrocatechol as a reducing agent, 0.1-5 g/L of polyoxyethylene nonyl phenol ether as a surfactant, 0.1-10 g/L of catechol as an antioxidant, 20-300 g/L of ethane sulfonate as a metal salt, 0.5-3 g/L of naphthaldehyde as a brightener and the balance of deionized water. By adopting the environmental-friendly tin plating electrolyte, a formula is reasonable, the weldability of a plated product is good, a plating is thick, the thickness of the plating can reach 2.5 microns through measurement, the growth of crystal whiskers is also effectively inhibited, the performance of a plating solution is stable, and hazardous substances are not precipitated.
Description
Technical field
The invention belongs to the zinc-plated technical field in metallic surface, be specifically related to a kind of environmental protection tin plating electrolyte.
Background technology
Tin has well corrosion-resistant and welding property, but its price high working property is poor, generally adopt and zinc-platedly in the metallic surface make it have the excellent in performance of tin and the workability of other metals, use more at electronic component, printed-wiring board (PWB), present chemical plating stannum is because the low reductive agent of commonly using that uses of the hydrogen-evolution overpotential high catalytic activity of tin, the product solderability of plating is poor, and the thin easy damaged of coating and erosion resistance are also low.
Summary of the invention
The object of the present invention is to provide a kind of formula reasonable, the good coating of the product weldability of producing is thick, the environmental protection tin plating electrolyte of process stabilizing.
Technical solution of the present invention is:
A kind of environmental protection tin plating electrolyte is characterized in that: namely it is joined and is, organic sulfonic acid pink salt: the inferior tin 5～30g/L of ethyl sulfonic acid; Organic acid: silane alcohol base sulfonic acid 100～250g/L; Complexing agent: thiocarbamide 50～250g/L; Reductive agent: two tea phenol 1～10g/L; Tensio-active agent: polyoxyethylene phenolic ether in the ninth of the ten Heavenly Stems 0.1～5g/L; Antioxidant: pyrocatechol 0.1～10g/L; Metal-salt: ethane sulfonate 20～300g/L; Brightening agent: naphthaldehyde 0.5～3g/L, surplus deionized water.
The present invention fills a prescription rationally, and the good coating of institute's plated product weldability is thick, and thickness of coating can reach 2.5 μ m through measuring, and the growth of inhibition of whiskers effectively, and plating solution performance is stable, and unharmful substance is separated out.
Embodiment:
Embodiment 1
A kind of environmental protection tin plating electrolyte is characterized in that: namely it is joined and is, organic sulfonic acid pink salt: the inferior tin 10g/L of ethyl sulfonic acid; Organic acid: silane alcohol base sulfonic acid 150g/L; Complexing agent: thiocarbamide 100g/L; Reductive agent: two tea phenol 2g/L; Tensio-active agent: polyoxyethylene phenolic ether in ninth of the ten Heavenly Stems 1g/L; Antioxidant: Catechol 2 g/L; Metal-salt: ethane sulfonate 50g/L; Brightening agent: naphthaldehyde 1g/L, fully to mix with the surplus deionized water, temperature is controlled at 55 ° of C, pH value 4, current density 10A/dm
2
Claims (1)
1. environmental protection tin plating electrolyte is characterized in that: namely it is joined and is, organic sulfonic acid pink salt: the inferior tin 5～30g/L of ethyl sulfonic acid; Organic acid: silane alcohol base sulfonic acid 100～250g/L; Complexing agent: thiocarbamide 50～250g/L; Reductive agent: two tea phenol 1～10g/L; Tensio-active agent: polyoxyethylene phenolic ether in the ninth of the ten Heavenly Stems 0.1～5g/L; Antioxidant: pyrocatechol 0.1～10g/L; Metal-salt: ethane sulfonate 20～300g/L; Brightening agent: naphthaldehyde 0.5～3g/L, surplus deionized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110432780 CN103173808A (en) | 2011-12-21 | 2011-12-21 | Environmental-friendly tin plating electrolyte |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110432780 CN103173808A (en) | 2011-12-21 | 2011-12-21 | Environmental-friendly tin plating electrolyte |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103173808A true CN103173808A (en) | 2013-06-26 |
Family
ID=48633982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110432780 Pending CN103173808A (en) | 2011-12-21 | 2011-12-21 | Environmental-friendly tin plating electrolyte |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103173808A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060307A (en) * | 2014-06-30 | 2014-09-24 | 句容市博远电子有限公司 | Pure tin electroplating solution for inhibiting growth of tin whiskers and application thereof |
| CN108103540A (en) * | 2018-01-24 | 2018-06-01 | 永星化工(上海)有限公司 | Tin alloy electric plating liquid |
-
2011
- 2011-12-21 CN CN 201110432780 patent/CN103173808A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060307A (en) * | 2014-06-30 | 2014-09-24 | 句容市博远电子有限公司 | Pure tin electroplating solution for inhibiting growth of tin whiskers and application thereof |
| CN108103540A (en) * | 2018-01-24 | 2018-06-01 | 永星化工(上海)有限公司 | Tin alloy electric plating liquid |
| CN108103540B (en) * | 2018-01-24 | 2020-01-07 | 永星化工(上海)有限公司 | Tin alloy electroplating solution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130626 |