CN113430593A - Novel additive suitable for high-speed copper-tin composite production - Google Patents
Novel additive suitable for high-speed copper-tin composite production Download PDFInfo
- Publication number
- CN113430593A CN113430593A CN202110505012.XA CN202110505012A CN113430593A CN 113430593 A CN113430593 A CN 113430593A CN 202110505012 A CN202110505012 A CN 202110505012A CN 113430593 A CN113430593 A CN 113430593A
- Authority
- CN
- China
- Prior art keywords
- composite production
- acid
- tin composite
- speed copper
- tin
- Prior art date
- 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.)
- Pending
Links
- 239000000654 additive Substances 0.000 title claims abstract description 22
- 230000000996 additive effect Effects 0.000 title claims abstract description 18
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000002131 composite material Substances 0.000 title claims abstract description 14
- PVNIIMVLHYAWGP-UHFFFAOYSA-N Niacin Chemical compound OC(=O)C1=CC=CN=C1 PVNIIMVLHYAWGP-UHFFFAOYSA-N 0.000 claims abstract description 20
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- BWHOZHOGCMHOBV-BQYQJAHWSA-N trans-benzylideneacetone Chemical compound CC(=O)\C=C\C1=CC=CC=C1 BWHOZHOGCMHOBV-BQYQJAHWSA-N 0.000 claims abstract description 12
- 108010010803 Gelatin Proteins 0.000 claims abstract description 11
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 11
- 239000008273 gelatin Substances 0.000 claims abstract description 11
- 229920000159 gelatin Polymers 0.000 claims abstract description 11
- 235000019322 gelatine Nutrition 0.000 claims abstract description 11
- 235000011852 gelatine desserts Nutrition 0.000 claims abstract description 11
- 239000011664 nicotinic acid Substances 0.000 claims abstract description 10
- 235000001968 nicotinic acid Nutrition 0.000 claims abstract description 10
- 229960003512 nicotinic acid Drugs 0.000 claims abstract description 10
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims abstract description 9
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims abstract description 9
- 235000010323 ascorbic acid Nutrition 0.000 claims abstract description 9
- 229960005070 ascorbic acid Drugs 0.000 claims abstract description 9
- 239000011668 ascorbic acid Substances 0.000 claims abstract description 9
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 9
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 9
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims abstract description 9
- 235000002906 tartaric acid Nutrition 0.000 claims abstract description 9
- 239000011975 tartaric acid Substances 0.000 claims abstract description 9
- BWHOZHOGCMHOBV-UHFFFAOYSA-N Benzalacetone Natural products CC(=O)C=CC1=CC=CC=C1 BWHOZHOGCMHOBV-UHFFFAOYSA-N 0.000 claims abstract description 8
- -1 ferrous sulfate compound Chemical class 0.000 claims abstract description 5
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 4
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 4
- 235000006708 antioxidants Nutrition 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 11
- 238000009713 electroplating Methods 0.000 description 7
- 238000007747 plating Methods 0.000 description 6
- 238000005282 brightening Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000001211 (E)-4-phenylbut-3-en-2-one Substances 0.000 description 4
- JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-naphthol Chemical compound C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 description 4
- 229930008407 benzylideneacetone Natural products 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229950011260 betanaphthol Drugs 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000861 blow drying Methods 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/30—Electroplating: Baths therefor from solutions of tin
- C25D3/32—Electroplating: Baths therefor from solutions of tin characterised by the organic bath constituents used
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
The invention discloses a novel additive suitable for high-speed copper-tin composite production. The components are as follows: 0.05g/L, NP-10 g/L of benzalacetone, 0.1g/L of emulsifier, 0.1g/L of nicotinic acid, 0.5g/L of ascorbic acid, tartaric acid and ferrous sulfate compound agent and 1.0g/L of gelatin; wherein the benzalacetone is used as a main brightener, NP-10 emulsifier, nicotinic acid and gelatin are used as auxiliary brighteners, and a compound agent of ascorbic acid, tartaric acid and ferrous sulfate is used as an antioxidant. The additive conforms to the existing high-speed copper-tin composite production process, is easy and cheap in raw materials, is harmless to human bodies and environment, and is a reliable, economical and environment-friendly novel additive.
Description
The technical field is as follows:
the invention belongs to the technical field of copper-tin electroplating, and particularly relates to a novel additive suitable for high-speed copper-tin composite production.
Background art:
in the existing tin plating process, the current efficiency of the additive is not high, so that the deposition efficiency of tin is low in the high-speed tin plating process, the tin layer is sparse, and the product quality is influenced. In addition, the existing additive contains beta naphthol component, and the beta naphthol has carcinogenic effect, so that the health of production personnel is endangered.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
The invention content is as follows:
the invention aims to provide a novel additive suitable for high-speed copper-tin composite production, so that the defects in the prior art are overcome.
In order to realize the purpose, the invention provides a novel additive suitable for high-speed copper-tin composite production, which comprises the following components: 0.05g/L, NP-10 g/L of benzalacetone, 0.1g/L of emulsifier, 0.1g/L of nicotinic acid, 0.5g/L of ascorbic acid, tartaric acid and ferrous sulfate compound agent and 1.0g/L of gelatin; wherein the benzalacetone is used as a main brightener, NP-10 emulsifier, nicotinic acid and gelatin are used as auxiliary brighteners, and a compound agent of ascorbic acid, tartaric acid and ferrous sulfate is used as an antioxidant.
Compared with the prior art, the invention has the following beneficial effects:
in the high-speed copper-tin composite production process, the dispersion capacity of the tin plating solution is 90%, the current efficiency is close to 100%, and no hydrogen evolution phenomenon occurs, so that the cathode polarization effect can be greatly increased, the copper-tin bonding force and the weldability are greatly increased, the detection requirements of national standards are exceeded, and in addition, the tin layer is compact and uniform, the crystal grains are fine and dense, and no crack is generated. The additive conforms to the existing high-speed copper-tin composite production process, is easy and cheap in raw materials, is harmless to human bodies and environment, and is a reliable, economical and environment-friendly novel additive.
The specific implementation mode is as follows:
the following detailed description of specific embodiments of the invention is provided, but it should be understood that the scope of the invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Example 1
A novel additive suitable for high-speed copper-tin composite production comprises the following components: 0.05g/L, NP-10 g/L of benzalacetone, 0.1g/L of emulsifier, 0.1g/L of nicotinic acid, 0.5g/L of ascorbic acid, tartaric acid and ferrous sulfate compound agent and 1.0g/L of gelatin; wherein the benzylidene acetone is used as a main brightening agent; NP-10 emulsifier, nicotinic acid and gelatin as auxiliary brightening agent; the compound agent of ascorbic acid, tartaric acid and ferrous sulfate is used as an antioxidant to prevent bivalent tin in the plating solution from being oxidized into tetravalent tin.
The benzylidene acetone is used as a main brightening agent, has larger acting force on electroplating, and has the more effective function of leading metal ions to be separated out at low potential and absorbing the process at high potential. Meanwhile, the benzylidene acetone also has the leveling effect.
The NP-10 emulsifier is a nonionic surfactant, the gelatin is a surfactant, the two and the nicotinic acid are jointly used as auxiliary brightening agents to play a role in refining grains, and the synergistic effect is generated by matching with the main brightening agent. The NP-10 emulsifier and the gelatin also have a dispersing effect, and the uniform covering capability of the tin layer is improved.
The concentration of the benzalacetone, the NP-10 emulsifier, the nicotinic acid, the ascorbic acid, the tartaric acid and ferrous sulfate compound agent and the gelatin is obtained by setting a concentration gradient. Wherein determination of the concentration of benzylidene acetone: other variables are controlled to set their concentration gradient from 0.01-0.2g/L setting, including 0.01, 0.03, 0.05, 0.07, 0.1, 0.13, 0.15, 0.17, 0.2, and the final selected concentration of 0.05g/L, with optimal results.
The novel additive and the original additive are subjected to Hull cell test and electroplating test for comparison.
1) Hull cell test
The test was carried out using a standard Hull cell of 250m L, a 100mm by 70mm cathode, a 0.2mm thick copper sheet and a 70mm by 60mm anode, a 9mm thick tin plate.
The test method comprises the following steps: degreasing → washing → 500 abrasive paper polishing → washing → electroplating.
The test conditions are as follows: the current is 5.0A; the temperature is 45 ℃; time 60 s.
2) Plating test
The electroplating experiment is carried out on a Nichhoff WPT400 copper-tin composite production line.
The electroplating process comprises the following steps: degreasing → cleaning → acid cleaning (deoxidation and activation) → electroplating → cleaning → blow-drying.
The effect pairs of the novel additives to the existing control additives are shown in table 1.
TABLE 1 comparison of the test results of the novel additives with the existing control additives
In the high-speed copper-tin composite production process, the dispersion capacity of the tin plating solution is 90%, the current efficiency is close to 100%, and no hydrogen evolution phenomenon occurs, so that the cathode polarization effect can be greatly increased, the copper-tin bonding force and the weldability are greatly increased, the detection requirements of national standards are exceeded, and in addition, the tin layer is compact and uniform, the crystal grains are fine and dense, and no crack is generated. The additive conforms to the existing high-speed copper-tin composite production process, is easy and cheap in raw materials, is harmless to human bodies and environment, and is a reliable, economical and environment-friendly novel additive.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (1)
1. A novel additive suitable for high-speed copper-tin composite production comprises the following components: 0.05g/L, NP-10 g/L of benzalacetone, 0.1g/L of emulsifier, 0.1g/L of nicotinic acid, 0.5g/L of ascorbic acid, tartaric acid and ferrous sulfate compound agent and 1.0g/L of gelatin; wherein the benzalacetone is used as a main brightener, NP-10 emulsifier, nicotinic acid and gelatin are used as auxiliary brighteners, and a compound agent of ascorbic acid, tartaric acid and ferrous sulfate is used as an antioxidant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110505012.XA CN113430593A (en) | 2021-05-10 | 2021-05-10 | Novel additive suitable for high-speed copper-tin composite production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110505012.XA CN113430593A (en) | 2021-05-10 | 2021-05-10 | Novel additive suitable for high-speed copper-tin composite production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113430593A true CN113430593A (en) | 2021-09-24 |
Family
ID=77753158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110505012.XA Pending CN113430593A (en) | 2021-05-10 | 2021-05-10 | Novel additive suitable for high-speed copper-tin composite production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113430593A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103668359A (en) * | 2012-09-06 | 2014-03-26 | 上海造币有限公司 | Electroplating liquid of multi-layer cyanide-free electroplated copper-tin alloy coating, electroplating technology and coin thereof |
| CN106222710A (en) * | 2016-08-29 | 2016-12-14 | 昆明理工大学 | A kind of acid half bright tin plating solution and preparation method thereof |
-
2021
- 2021-05-10 CN CN202110505012.XA patent/CN113430593A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103668359A (en) * | 2012-09-06 | 2014-03-26 | 上海造币有限公司 | Electroplating liquid of multi-layer cyanide-free electroplated copper-tin alloy coating, electroplating technology and coin thereof |
| CN106222710A (en) * | 2016-08-29 | 2016-12-14 | 昆明理工大学 | A kind of acid half bright tin plating solution and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 支月鹏 等: "硫酸盐半光亮电镀锡工艺优化", 《材料保护》 * |
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| PB01 | Publication | ||
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Application publication date: 20210924 |