CN102634804A - Nickel plated battery steel casing organic antirust agent and use method thereof - Google Patents
Nickel plated battery steel casing organic antirust agent and use method thereof Download PDFInfo
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- CN102634804A CN102634804A CN201210127295XA CN201210127295A CN102634804A CN 102634804 A CN102634804 A CN 102634804A CN 201210127295X A CN201210127295X A CN 201210127295XA CN 201210127295 A CN201210127295 A CN 201210127295A CN 102634804 A CN102634804 A CN 102634804A
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- battery steel
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- nickel plating
- corrosion inhibitor
- organic corrosion
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Abstract
The invention relates to a nickel plated battery steel casing organic antirust agent and a use method of the agent. The nickel plated battery steel casing organic antirust agent comprises the following components in percent by weight: 0.05-5 percent of 2-aminothiophenol, 5-30 percent of absolute ethyl alcohol, 0.05-5 percent of a corrosion inhibitor, 0.05-5 percent of a wetting agent, 0.05-1 percent of pH regulating agent and the balance of water. The nickel plated battery steel casing organic antirust agent has better dispersing property and excellent infiltration capacity and adsorptive capacity, and one layer of uniform and compact and firmly-attached nano level protection film can form on the surface of a nickel coating in an oriented absorption way, thus corrosion of oxygen and other media to the nickel coating even a metal substrate is inhibited and delayed, and the corrosion resistance of a battery steel casing is improved. The invention also discloses a use method of the nickel plated battery steel casing organic antirust agent. The use method has the advantages of simple process, low cost, convenience and simpleness in use and no environment side effects.
Description
Technical field
The present invention relates to the anticorrosive metal field, be specifically related to a kind of nickel plating battery steel shell organic corrosion inhibitor and method of use thereof.
Background technology
Along with the popularizing day by day and updating of consumer electronics, zinc-manganese, alkali manganese and nickel metal hydride battery etc. once or the secondary cell consumption increasing, and the shell of these batteries is selected the nickel plating box hat mostly for use.Barrel plating or pre-plating process are mainly adopted in the production of nickel plating box hat at present.Barrel plating technology strikes out battery steel shell with steel band earlier exactly, then barrel plating one deck nickel coatings on the box hat surface; Pre-plating process is exactly on steel band, to electroplate one deck nickel coatings earlier, and then strikes out battery case.Barrel plating technology is because of electric current skewness on time and space in electroplating process, and battery steel shell is the blind hole part simultaneously, is prone to cause box hat plating nickel on surface layer inhomogeneous, and pin hole is more, gets rusty easily; Pre-plating process is because nickel coatings will experience punching course, and punching press causes craze of coating easily even comes off, and causes the decline of battery steel shell corrosion resistance nature.No matter can find according to above analysis, be the nickel plating box hat that adopts barrel plating technology or pre-plating process to produce, and make the nickel plating battery steel shell have excellent corrosion resisting performance, and further antirust processing is indispensable.
At present, the antirust processing of widely used box hat mainly is to be main chromating technology with the sexavalent chrome, and chromating technology is simple, and is specious, stable performance, and the passivation film forming properties of formation is better and have a self-reparing capability.But because sexavalent chrome is highly toxic substance and carcinogenesis is arranged that hexavalent chromium concentration surpasses 10ppm will produce lethal effect to aquatic organism.Its range of application is receiving increasing restriction, the electronics and IT products pollution control management way of the ROHS of European Union rules and China, the content of toxic ingredients such as all strict restriction sexavalent chrome.Therefore exploitation and popularization Chrome-free rust-preventive agent are imperative.Current research has nitrite, tungstate, molybdate, type oxide film rust-preventive agent such as silicate and benzoate with the bigger rust-preventive agent of the exploitation degree of depth; Deposition such as zinc sulfate, Calcium hydrogen carbonate and poly-phosphate membranous type rust-preventive agent; Absorption such as alkyls, thio-alcohol, Thiourea, carboxyl class and aldehyde radical class membranous type rust-preventive agent.But above-mentioned rust-preventive agent is compared with traditional chromic salt, and the scope of application is narrower, complex process, rust-proof effect is not ideal enough and circulation ratio is bad, remains further that research improves, and the road that comprehensively replaces chromic salt also has a segment distance.Therefore research has good stability, rust-proof effect is remarkable, novel antirust agent no environment spinoff is trend of the times.
Summary of the invention
The object of the present invention is to provide a kind of easy to use, good film-forming property, the significant environmentally friendly nickel plating battery steel shell organic corrosion inhibitor of rust-proof effect.
Another object of the present invention is to provide the method for use of above-mentioned rust-preventive agent.
A kind of nickel plating battery steel shell organic corrosion inhibitor comprises the aqueous solution that following weight ratio ingredient is formed:
Near amino thiophenols: 0.05～5%;
Absolute ethyl alcohol: 5～30%;
Inhibiter: 0.05～5%;
Wetting agent: 0.05～5%;
PH regulator agent: 0.05～1%;
Described inhibiter comprises hydroxy-containing compounds, contains aldehyde compound, amino-contained compound or glyoxaline compound;
Described wetting agent comprises sodium lauryl sulphate, one or both in the polyoxyethylene glycol;
Described pH regulator agent comprises trolamine, one or both of triethylamine.
Described hydroxy-containing compounds comprises one or both of TriMethylolPropane(TMP), hexamethylolmelamine, HEDP (HEDPA), p-phenyl phenol, 2 hydroxy ethylamine.
The described aldehyde compound that contains comprises one or both of phenylacetic aldehyde, methylethyl acetaldehyde, undecylene aldehyde, Ling Lanquan, cinnamic aldehyde, vanillin food grade,1000.000000ine mesh.
Described amino-contained compound comprises 2,4-dinitraniline, Triethylenetetramine (TETA), trimeric cyanamide, hexahydroaniline, one or both of 4-N-methyl-p-nitroaniline, chaff amine.
Described glyoxaline compound comprises 4,5-methylimidazole, N-acylimidazole, imidazole salts, 1-methyl-2-ethyl imidazol(e), N-alkyl imidazole one or both.
The method of use of described nickel plating battery steel shell organic corrosion inhibitor: immersion treatment is done in nickel plating battery steel shell surface in described nickel plating battery steel shell organic corrosion inhibitor; The immersion treatment temperature is 20～50 ℃, and the pH value is 7～9, and the treatment time is 1～5h; Immersion treatment is used the distilled water flushing box hat after accomplishing, and under 50～80 ℃ of temperature, dries then to get final product.
Doing immersion treatment in nickel plating battery steel shell organic corrosion inhibitor before, the nickel plating battery steel shell, belongs to the conventional processing process through the process of oil removing, water rinse, activation, water rinse.
The preparation method of rust-preventive agent of the present invention promptly gets final product each components dissolved according to above-mentioned weight ratio in water.
The present invention selects for use near amino thiophenols as main membrane-forming agent, and its molecular formula is C
6H
7NS, relative molecular mass is 125.20, belongs to thio-alcohol, can form self-assembled monolayer (SAMs) in the metallic surface.Its membrane formation mechanism is that ferro element outermost layer d track is not full of electronics fully; Can accept external electronics Cheng Jian; And the S that near amino thiophenols contains, N and phenyl ring have non-covalent electron pair, can shift and form co-ordination bond by the empty d track in metal, thereby adsorb the fine and close nanometer monomolecular film of one deck in the metallic surface; Make that medium and metallic surface are separated, play the effect of protection metal.
RH
2-N：+Fe＝＝RH
2N→Fe
The present invention selects for use absolute ethyl alcohol as organic solvent, and its reason is that near amino thiophenols is insoluble to pure water, is soluble in absolute ethyl alcohol.
The present invention selects for use amine as inhibiter, and for example 2,4-dinitraniline, Triethylenetetramine (TETA), trimeric cyanamide, hexahydroaniline, 4-N-methyl-p-nitroaniline, chaff amine.With the trimeric cyanamide is example, its polar group (NH
2-) central atom N contains lone pair electron, can constitute co-ordination bond with metal M top layer electronics, reaches the effect of chemisorption in the metallic surface.πDian Zi on the phenyl in addition also plays a part with lone pair electron equally, suppresses the purpose of anodic reaction with collaborative realization of lone pair electron, and corrosive takes place and development on the metallic surface thereby stoped, and has avoided the corrosion of metal base then.
The present invention selects sodium lauryl sulphate for use, in the polyoxyethylene glycol or its mixture as wetting agent.The wetting agent that in rust-preventive agent, adds a small amount of; Can reduce solution surface tension, realize the uniform distribution of rust-preventive agent effective constituent, promote rust-preventive agent effective constituent to adsorb in the box hat Surface Physical; Then realize chemisorption, form the protective membrane of one deck even compact on the box hat surface.
The present invention selects trolamine for use; Triethylamine or its mixture are as the pH regulator agent, and its pH value scope is between 7～9, and its reason is: rust-preventive agent produces hydrolysis reaction in acid or highly basic; Make hydrophilic polar group change, such as the polar group NH in the melamine molecule
2 -Be converted into OH
-, can not provide between lone pair electron and the metallic surface electronics to constitute co-ordination bond, also just can't adsorb the protective membrane of one deck even compact in the metallic surface.
Problems such as rust-preventive agent of the present invention is the good rust-preventive agent of a kind of Environmental compatibility, can replace deleterious sexavalent chrome rust-preventive agent, has solved present organic corrosion inhibitor and has used complicacy, and film forming is uneven, and rust-proof effect is undesirable.Rust-preventive agent of the present invention can stop and avoid the generation and the development of box hat surface corrosion in nickel plating box hat surface orientation absorption one deck adhere firmly, rete compact protective film.
The present invention also provides the method for use of above-mentioned rust-preventive agent, specifically comprises the steps:
(1) pre-treatment on battery steel shell surface, technical process is oil removing-water rinse-activation-water rinse;
(2) use rust protection liquid to carry out immersion treatment, treatment temp is 20～50 ℃, and the pH value is 7～9, and the treatment time is 1～5h; After immersion finishes, promptly adsorb the nano level film of one deck even compact at the battery steel shell surface orientation;
(3) use the distilled water flushing box hat, under 50～80 ℃ of temperature, dry then and get final product.
Embodiment
Following examples are intended to further specify the present invention, and unrestricted the present invention.
This experiment adopts the barrel nickel plating battery steel shell as sample.
Employing neutral salt spray test NSS (5%NaCL, 35 ± 2 ℃ of temperature, relative humidity >=95%) estimates the corrosion resistance nature of the battery steel shell after the antirust processing.
The processing condition of the antirust processing of test nickel plating battery steel shell:
20～50 ℃ of treatment temps; The pH value is 7～9; Treatment time 1～5h; Processing mode: soak; Drying mode: 50～80 ℃ of oven dry.
Embodiment 1
Use organic corrosion inhibitor of the present invention in barrel nickel plating battery steel shell surface preparation anti-rust film:
A. battery steel shell is carried out electrochemical deoiling, the degreasing fluid component is NaOH 40g/L, Na
2CO
330g/L, Na
3PO
420g/L, Na
2SiO
320g/L.Battery steel shell is immersed in degreasing fluid 5～10min of 80～90 ℃, takes out the back and use flushing with clean water,, then need continue oil removing if the box hat surface has droplet to stop; If no droplet stops, then use rinsed with deionized water.
B. will immerse 5%H through the battery steel shell after a step process
2SO
4Activation treatment 60～90s in the solution at room temperature of (volume(tric)fraction) then uses deionized water rinsing.
C. will be soaked in through the battery steel of b step process in the rust-preventive agent of the present invention; The composition of rust-preventive agent is 2.5% near amino thiophenols, 20% absolute ethyl alcohol, 0.5% trimeric cyanamide and 5% sodium lauryl sulphate; Surplus is a water; Regulate the pH value with 10% trolamine and reach 8 the mass ratio of pH regulator agent in the rust-preventive agent (make 0.05～1%), soaking temperature is 25 ℃ of room temperatures, soak time 1h.
D. will use distilled water flushing through the battery steel shell after the c step process, 60 ℃ of oven dry back preservations down.
To carry out neutral salt spray grading in 96 hours with the battery steel shell that the present embodiment prescription was handled, the rotproofness performance of present embodiment reaches 8 grades.
Embodiment 2
After battery steel shell adopted the pre-treatment identical with embodiment 1; Be soaked in the rust-preventive agent of the present invention; The composition of rust-preventive agent is 1.5% near amino thiophenols, 15% absolute ethyl alcohol, 1.5% trimeric cyanamide and 3% sodium lauryl sulphate, and surplus is a water, regulates the pH value with 10% trolamine and reaches 7 the mass ratio of pH regulator agent in the rust-preventive agent (make 0.05～1%); Soaking temperature is 25 ℃ of room temperatures, soak time 3h.Use the distilled water flushing box hat then, under 60 ℃ of temperature, dry.
To carry out neutral salt spray grading in 96 hours with the battery steel shell that the present embodiment prescription was handled, the rotproofness performance of present embodiment reaches 9 grades.
Embodiment 3
After battery steel shell adopted the pre-treatment identical with embodiment 1; Be soaked in the rust-preventive agent of the present invention; The composition of rust-preventive agent is 0.5% near amino thiophenols, 8% absolute ethyl alcohol, 2.5% trimeric cyanamide and 0.25% sodium lauryl sulphate, and surplus is a water, regulates the pH value with 10% trolamine and reaches 8 the mass ratio of pH regulator agent in the rust-preventive agent (make 0.05～1%); Soaking temperature is 25 ℃ of room temperatures, soak time 3h.Use the distilled water flushing box hat then, under 60 ℃ of temperature, dry.
To carry out neutral salt spray grading in 96 hours with the battery steel shell that the present embodiment prescription was handled, the rotproofness performance of present embodiment reaches 8 grades.
Embodiment 4
After battery steel shell adopted the pre-treatment identical with embodiment 1; Be soaked in the rust-preventive agent of the present invention; The composition of rust-preventive agent is 2.5% near amino thiophenols, 25% absolute ethyl alcohol, 1.5% trimeric cyanamide and 5% sodium lauryl sulphate, and surplus is a water, regulates the pH value with 10% trolamine and reaches 9 the mass ratio of pH regulator agent in the rust-preventive agent (make 0.05～1%); Soaking temperature is 25 ℃ of room temperatures, soak time 5h.Use the distilled water flushing box hat then, under 60 ℃ of temperature, dry.
To carry out neutral salt spray grading in 96 hours with the battery steel shell that the present embodiment prescription was handled, the rotproofness performance of present embodiment reaches 8 grades.
Embodiment 5
After battery steel shell adopted the pre-treatment identical with embodiment 1; Be soaked in the rust-preventive agent of the present invention; The composition of rust-preventive agent is 2.5% near amino thiophenols, 20% absolute ethyl alcohol, 0.5% trimeric cyanamide and 3% sodium lauryl sulphate, and surplus is a water, regulates the pH value with 10% trolamine and reaches 8 the mass ratio of pH regulator agent in the rust-preventive agent (make 0.05～1%); Soaking temperature is 25 ℃ of room temperatures, soak time 5h.Use the distilled water flushing box hat then, under 60 ℃ of temperature, dry.
To carry out neutral salt spray grading in 96 hours with the battery steel shell that the present embodiment prescription was handled, the rotproofness performance of present embodiment reaches 9 grades.
Claims (9)
1. a nickel plating battery steel shell organic corrosion inhibitor is characterized in that, comprises the aqueous solution that following weight ratio ingredient is formed:
Near amino thiophenols: 0.05～5%;
Absolute ethyl alcohol: 5～30%;
Inhibiter: 0.05～5%;
Wetting agent: 0.05～5%;
PH regulator agent: 0.05～1%;
Described inhibiter comprises hydroxy-containing compounds, contains aldehyde compound, amino-contained compound or glyoxaline compound;
Described wetting agent comprises sodium lauryl sulphate, one or both in the polyoxyethylene glycol;
Described pH regulator agent comprises trolamine, one or both of triethylamine.
2. nickel plating battery steel shell organic corrosion inhibitor according to claim 1; It is characterized in that described hydroxy-containing compounds comprises one or both of TriMethylolPropane(TMP), hexamethylolmelamine, HEDP, p-phenyl phenol or 2 hydroxy ethylamine.
3. nickel plating battery steel shell organic corrosion inhibitor according to claim 1 is characterized in that, the described aldehyde compound that contains comprises one or both of phenylacetic aldehyde, methylethyl acetaldehyde, undecylene aldehyde, Ling Lanquan, cinnamic aldehyde, vanillin food grade,1000.000000ine mesh.
4. nickel plating battery steel shell organic corrosion inhibitor according to claim 1 is characterized in that described amino-contained compound comprises 2,4-dinitraniline, Triethylenetetramine (TETA), trimeric cyanamide, hexahydroaniline, one or both of 4-N-methyl-p-nitroaniline, chaff amine.
5. nickel plating battery steel shell organic corrosion inhibitor according to claim 1 is characterized in that described glyoxaline compound comprises 4, one or both of 5-methylimidazole, N-acylimidazole, imidazole salts, 1-methyl-2-ethyl imidazol(e), N-alkyl imidazole.
6. the method for use of each described nickel plating battery steel shell organic corrosion inhibitor of claim 1-5 is characterized in that, immersion treatment is done in nickel plating battery steel shell surface in described nickel plating battery steel shell organic corrosion inhibitor.
7. the method for use of nickel plating battery steel shell organic corrosion inhibitor according to claim 6 is characterized in that, the immersion treatment temperature is 20～50 ℃, and the pH value is 7～9, and the treatment time is 1～5h.
8. according to the method for use of claim 6 or 7 described nickel plating battery steel shell organic corrosion inhibitors, it is characterized in that, use the distilled water flushing box hat after immersion treatment is accomplished, under 50～80 ℃ of temperature, dry then and get final product.
9. the method for use of nickel plating battery steel shell organic corrosion inhibitor according to claim 6 is characterized in that, the process of process oil removing, water rinse, activation, the water rinse nickel plating battery steel shell is done immersion treatment in nickel plating battery steel shell organic corrosion inhibitor before.
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| CN201210127295XA CN102634804A (en) | 2012-04-27 | 2012-04-27 | Nickel plated battery steel casing organic antirust agent and use method thereof |
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|---|---|---|---|
| CN201210127295XA CN102634804A (en) | 2012-04-27 | 2012-04-27 | Nickel plated battery steel casing organic antirust agent and use method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233358A (en) * | 2014-09-10 | 2014-12-24 | 句容金猴机械研究所有限公司 | Rust remover for mechanical equipment and preparation method of rust remover |
| CN105618413A (en) * | 2016-01-25 | 2016-06-01 | 浙江钱江锂电科技有限公司 | Cleaning technique for surface of metal-cased cell |
| CN108018561A (en) * | 2017-12-04 | 2018-05-11 | 中国科学院宁波材料技术与工程研究所 | A kind of more arylamine metal inhibitors of imidazoles and preparation method and application |
| CN116657143A (en) * | 2023-07-17 | 2023-08-29 | 四川冠山科技有限公司 | Green corrosion inhibitor for inhibiting corrosion of low-carbon steel in high-concentration hydrochloric acid medium and preparation method thereof |
| CN116732508A (en) * | 2023-08-16 | 2023-09-12 | 江苏睿恩新能源科技有限公司 | Surface anti-corrosion treatment method for lithium ion battery steel shell |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4511480A (en) * | 1983-07-20 | 1985-04-16 | Petrolite Corporation | Corrosion inhibition in deep gas wells by phosphate esters of poly-oxyalkylated thiols |
| CN1590371A (en) * | 2004-03-16 | 2005-03-09 | 浙江工业大学 | Preparation method of substituted thiophenol |
| CN1712568A (en) * | 2004-06-25 | 2005-12-28 | 上海师范大学 | Water antki-rust composition |
| CN102002698A (en) * | 2010-11-29 | 2011-04-06 | 湘潭大学 | Anti-rust treating agent for nickel-plated battery steel shell and using method thereof |
-
2012
- 2012-04-27 CN CN201210127295XA patent/CN102634804A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4511480A (en) * | 1983-07-20 | 1985-04-16 | Petrolite Corporation | Corrosion inhibition in deep gas wells by phosphate esters of poly-oxyalkylated thiols |
| CN1590371A (en) * | 2004-03-16 | 2005-03-09 | 浙江工业大学 | Preparation method of substituted thiophenol |
| CN1712568A (en) * | 2004-06-25 | 2005-12-28 | 上海师范大学 | Water antki-rust composition |
| CN102002698A (en) * | 2010-11-29 | 2011-04-06 | 湘潭大学 | Anti-rust treating agent for nickel-plated battery steel shell and using method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233358A (en) * | 2014-09-10 | 2014-12-24 | 句容金猴机械研究所有限公司 | Rust remover for mechanical equipment and preparation method of rust remover |
| CN104233358B (en) * | 2014-09-10 | 2016-12-07 | 句容金猴机械研究所有限公司 | A kind of plant equipment rust remover and preparation method thereof |
| CN105618413A (en) * | 2016-01-25 | 2016-06-01 | 浙江钱江锂电科技有限公司 | Cleaning technique for surface of metal-cased cell |
| CN108018561A (en) * | 2017-12-04 | 2018-05-11 | 中国科学院宁波材料技术与工程研究所 | A kind of more arylamine metal inhibitors of imidazoles and preparation method and application |
| CN116657143A (en) * | 2023-07-17 | 2023-08-29 | 四川冠山科技有限公司 | Green corrosion inhibitor for inhibiting corrosion of low-carbon steel in high-concentration hydrochloric acid medium and preparation method thereof |
| CN116657143B (en) * | 2023-07-17 | 2023-12-12 | 四川冠山科技有限公司 | Green corrosion inhibitor and preparation method thereof |
| CN116732508A (en) * | 2023-08-16 | 2023-09-12 | 江苏睿恩新能源科技有限公司 | Surface anti-corrosion treatment method for lithium ion battery steel shell |
| CN116732508B (en) * | 2023-08-16 | 2023-11-21 | 江苏睿恩新能源科技有限公司 | Surface anti-corrosion treatment method for lithium ion battery steel shell |
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Application publication date: 20120815 |