CN108411294A - Pretreatment fluid and its preparation and application before a kind of environment-friendly type metal application - Google Patents
Pretreatment fluid and its preparation and application before a kind of environment-friendly type metal application Download PDFInfo
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- CN108411294A CN108411294A CN201810241348.8A CN201810241348A CN108411294A CN 108411294 A CN108411294 A CN 108411294A CN 201810241348 A CN201810241348 A CN 201810241348A CN 108411294 A CN108411294 A CN 108411294A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/68—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous solutions with pH between 6 and 8
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
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- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
Pretreatment fluid before a kind of environment-friendly type metal application of present invention offer, including following component：0.1~10 part of film forming agent, 0.01~5 part of chelating agent, 0.1~20 part of stabilizer, 0.01~15 part of PH conditioning agents, 50~98.9 parts of deionized water.Its object is to develop pretreatment fluid before a kind of environment-friendly type metal application, which is novel environmentally protective, less toxic, easy to operate, low-cost Coating Pretreatment liquid, to improve film adhesive force and application after corrosion resistance.
Description
Technical field
The present invention relates to coated metal pre-treatment field, more particularly to a kind of gold, silver noble metal and copper product and its alloy
Deng Coating Pretreatment liquid.
Background technology
Metal erosion, huge economic loss, especially gold, silver etc. can also be brought by not only influencing the appearance (gloss) of metal
Noble metal and copper product and its alloy etc., being lost caused by corrosion can not almost estimate every year.In order to solve this present situation, press down
The corrosion of gold, silver noble metal and copper product and its alloy processed etc. reduces them in plating, application, cleaning, machining and adds
Work inter process, storage and corrosion in transit need before carrying out application to gold, silver noble metal and copper product and its alloy etc.
Reason.
Coated metal pre-treatment at present mostly uses greatly phosphated metal surfaces processing, but the Phos in traditional phosphating solution
The Substances on Ecological Environment such as acid, nitrite, chromate, heavy metal ion can cause serious pollution and destruction, cannot
Adapt to environmental requirement of the country to paint industry.
It would therefore be highly desirable to develop a kind of high-performance metal Coating Pretreatment liquid environmentally protective, easy to operate and low-cost
Instead of above-mentioned traditional phosphating solution.
Invention content
It is an object of the invention to develop pretreatment fluid before a kind of environment-friendly type metal application, which is novel
Environmentally protective, less toxic, easy to operate, low-cost Coating Pretreatment liquid, after adhesive force and the application to improve film
Corrosion resistance.
The technical scheme is that：Pretreatment fluid before a kind of environment-friendly type metal application, including following component：Film forming
0.1~10 part of agent, 0.01~5 part of chelating agent, 0.1~20 part of stabilizer, 0.01~15 part of PH conditioning agents, deionized water 50~
99.78 parts.
Further, the film forming agent is analogous to nitrogen azole compounds, as diazoles compound, triazole class compounds,
One or more kinds of combinations in tetrazole compound.
Further, the chelating agent is graphene water-soluble paste (or water-soluble paste of modified graphene), including 1
~10 layers of different numbers of plies, the one or more kinds of of the graphene water-soluble paste of 0.001%~1% various concentration mix
It closes.
Further, the chelating agent is by graphene water-soluble paste silane coupler modified KH-550.
Further, the stabilizer is ethyl alcohol or glycerine.
Further, the PH conditioning agents are sodium hydroxide or ammonium hydroxide.PH value for adjusting metal pretreatment liquid so that
Each component can be synergistic, and experiment shows that the function and effect of metal pretreatment liquid are optimal when pH value is 6.5~7.
The present invention also provides a kind of preparation methods of pretreatment fluid before environment-friendly type metal application, distinguish by quality proportioning
Film forming agent, chelating agent and stabilizer and deionized water is added, is put into nonmetallic vessel and is heated to 100 DEG C, is sufficiently stirred straight
To being completely dissolved, PH conditioning agents are eventually adding, pH value is adjusted to 6.5~7, that is, are prepared before environment-friendly type metal application in advance
Treatment fluid.
The present invention also provides a kind of application methods of pretreatment fluid before environment-friendly type metal application, and metal is immersed in gold
Belong to before application 2~5min in pretreatment fluid, or pretreatment fluid before coated metal is spread evenly across metal surface, form 10~
The coating of 50nm, treatment temperature room temperature, 5min naturally dries.
The beneficial effects of the invention are as follows：First, nitrogen azole film forming agent interacts with modified graphene in metal surface shape
At fine and close membrane structure, the adhesive force between the anti-corrosion performance of metal pretreatment liquid and metal base is greatly improved, with
And the binding force of metal base and outer application interlayer.Secondly, nitrogen azole film forming agent, itself toxicity are low.Again, used in the present invention
The heavy metals such as the not nickeliferous, chromium of solvent, it is environment friendly and pollution-free without discharge during use.Finally, the coated metal pretreatment liquid of exploitation
Metal works can be handled in room temperature, neutral environment, simple and safe operation is at low cost.
In conclusion the coated metal pretreatment liquid developed of the present invention is that a kind for the treatment of temperature is low, favorable anti-corrosion effect, it is attached
Put forth effort strong, energy conservation and environmental protection, easy to operate and low-cost high-performance metal Coating Pretreatment liquid.
Specific implementation mode
Embodiment 1：
Pretreatment fluid each component is prepared by following specific quality proportioning before environment-friendly type metal application：
Film forming agent tetrazole 0.1g, 0.1% graphene water-soluble paste 1g, the hydrogen-oxygen of absolute ethyl alcohol 0.5g, 1mol/L
Change sodium 0.5g, deionized water 97.9g.
A kind of gold, silver noble metal and copper product and its alloy Coating Pretreatment liquid, are made of serial specific steps：
(1) 0.5% graphene water-soluble paste 1g is weighed, deionized water is added, the graphene for being configured to 10ppm is water-soluble
Property slurry 98.9g；
(2) it is added in 0.5g absolute ethyl alcohols to (1) and is uniformly mixed；
(3) 0.1g film forming agents are weighed, are added in uniformly mixed (2), heating at a temperature of 100 DEG C is until film forming agent is complete
Dissolving；
(4) sodium hydroxide of 1mol/L is used to adjust pH value to 6.5~7；Room temperature cooling is for use；
The gold, silver noble metal and the Coating Pretreatment liquid of copper product and its alloy prepared according to embodiment 1 handles copper sheet
It tests, copper sheet is immersed in 2min in pretreatment liquid, takes out naturally dry.It is placed in salt fog cabinet, salt spray resistance experimental period
500 hours.If by fluorocarbon radical coating is sprayed on the copper sheet after drying, find after tested good with fluorocarbon radical paint coatings binding force
Good, the experiment of hundred lattice of adhesive force can reach 0 grade, and hardness reaches 80cm/kg up to 6H, comprehensive impact resistance ability, and salt-fog resistant time is super
Spend 1000 hours.
Embodiment 2：
Pretreatment fluid each component is prepared by following specific quality proportioning before environment-friendly type metal application：
(wherein the two presses 20 by film forming agent triazole and tetrazole 0.2g:80 ratio compounding), 0.1% graphene is water-soluble
Property slurry 1g, glycerine 0.5g, ammonium hydroxide (CAS:1336-21-6) about 5g, deionized water 194.3g.
A kind of gold, silver noble metal and copper product and its alloy Coating Pretreatment liquid are prepared by serial specific steps and are made
At：
(1) 0.1% graphene water-soluble paste 1g is weighed, deionized water is added, the graphene for being configured to 5ppm is water-soluble
Property slurry 198.8g；
(2) it is added in 0.5g glycerine to (1) and is uniformly mixed；
(3) it weighs 0.2g and has compounded film forming agent, be added in uniformly mixed (2), heating at a temperature of 100 DEG C is until film forming
Agent is completely dissolved；
(4) ammonium hydroxide (about 5g) is used to adjust pH value to 7；Room temperature cooling is for use；
According to embodiment 2 prepare gold, silver noble metal and the Coating Pretreatment liquid of copper product and its alloy processing (without
Surface treatment) blank silver coin tests, and 2min in pretreatment liquid will be immersed in without the silver coin of surface treatment, and it takes out nature and dries in the air
It is dry.Then the silver coin naturally dry that will be impregnated, is placed in salt fog cabinet, and salt-fog resistant time is more than 5000 hours.
Embodiment 3：
Pretreatment fluid each component is prepared by following specific quality proportioning before environment-friendly type metal application：
Film forming agent tetrazole 0.1g, 0.1% modified graphene water-soluble paste 1g, absolute ethyl alcohol 0.5g, 1mol/L's
Sodium hydroxide 0.5g, deionized water 97.9g.
A kind of gold, silver noble metal and copper product and its alloy Coating Pretreatment liquid are prepared by serial specific steps and are made
At：
(1) the 0.1% graphene water-soluble paste 1g silane coupler modified by KH-550 is weighed, deionization is added
Water is configured to the graphene water-soluble paste 98.9g of 10ppm；
(2) it is added in 0.5g absolute ethyl alcohols to (1) and is uniformly mixed；
(3) 0.1g film forming agents are weighed, are added in uniformly mixed (2), heating at a temperature of 100 DEG C is until film forming agent is complete
Dissolving；
(4) sodium hydroxide of 1mol/L is used to adjust pH value to 6.5~7；Room temperature cooling is for use；
The gold, silver noble metal and the Coating Pretreatment liquid of copper product and its alloy prepared according to embodiment 3 handles copper sheet
It tests, copper sheet is immersed in 2min in pretreatment liquid, takes out naturally dry.It is directly placed into salt fog cabinet after drying, salt tolerant
The mist time is more than 800 hours.Compared with example 1, since the chelating agent graphene aqueous solution of use is to have passed through KH550 silane idols
Connection agent was modified, thus by its processed copper sheet salt spray resistance by example 1 be more than increase within 500 hours it is super
Spend 800 hours.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, several simple modifications and retouching can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. pretreatment fluid before a kind of environment-friendly type metal application, which is characterized in that including following component：Film forming agent 0.1~10
Part, 0.01~5 part of chelating agent, 0.1~20 part of stabilizer, 0.01~15 part of PH conditioning agents, 50~99.78 parts of deionized water.
2. pretreatment fluid before a kind of environment-friendly type metal application according to claim 1, which is characterized in that the film forming
Agent is one or more kinds of combinations in diazoles compound, triazole class compounds, tetrazole compound.
3. pretreatment fluid before a kind of environment-friendly type metal application according to claim 1, which is characterized in that the chelating
Agent is graphene water-soluble paste (or water-soluble paste of modified graphene), including 1~10 layer of different number of plies, 0.001%~
One or more kinds of mixing of the graphene water-soluble paste of 1% various concentration.
4. pretreatment fluid before a kind of environment-friendly type metal application according to claim 1 or 3, which is characterized in that described
Chelating agent is by graphene water-soluble paste silane coupler modified KH-550.
5. pretreatment fluid before a kind of environment-friendly type metal application according to claim 1, which is characterized in that the stabilization
Agent is ethyl alcohol or glycerine.
6. pretreatment fluid before a kind of environment-friendly type metal application according to claim 1, which is characterized in that the PH tune
It is sodium hydroxide or ammonium hydroxide to save agent.
7. according to the preparation method of pretreatment fluid before a kind of any environment-friendly type metal applications of claim 1-6,
It is characterized in that, is separately added into film forming agent, chelating agent and stabilizer and deionized water by quality proportioning, is put into nonmetallic vessel
100 DEG C are heated to, is sufficiently stirred up to being completely dissolved, is eventually adding PH conditioning agents, pH value is adjusted to 6.5~7, that is, is prepared
Pretreatment fluid before environment-friendly type metal application.
8. according to the application method of pretreatment fluid before a kind of any environment-friendly type metal applications of claim 1-6,
It is characterized in that, metal is immersed in before coated metal 2~5min in pretreatment fluid, or pretreatment fluid before coated metal is uniform
It is coated on metal surface, forms the coating of 10~50nm, treatment temperature room temperature, 5min naturally dries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810241348.8A CN108411294A (en) | 2018-03-22 | 2018-03-22 | Pretreatment fluid and its preparation and application before a kind of environment-friendly type metal application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810241348.8A CN108411294A (en) | 2018-03-22 | 2018-03-22 | Pretreatment fluid and its preparation and application before a kind of environment-friendly type metal application |
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| CN108411294A true CN108411294A (en) | 2018-08-17 |
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| CN201810241348.8A Pending CN108411294A (en) | 2018-03-22 | 2018-03-22 | Pretreatment fluid and its preparation and application before a kind of environment-friendly type metal application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113755829A (en) * | 2021-08-16 | 2021-12-07 | 深圳市志凌伟业光电有限公司 | Blackening-treated copper film surface anticorrosion protective liquid medicine |
Citations (3)
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|---|---|---|---|---|
| CN104630765A (en) * | 2013-11-11 | 2015-05-20 | 安徽未来表面技术有限公司 | Environmental-protection type metal coating pre-treatment agent and preparation method thereof |
| CN106519300A (en) * | 2016-10-31 | 2017-03-22 | 无锡云亭石墨烯技术有限公司 | Preparation and application method for water-based modified graphene slurry |
| CN107217249A (en) * | 2017-05-27 | 2017-09-29 | 湖南金裕环保科技有限公司 | Graphene silane filming agent and preparation method thereof |
-
2018
- 2018-03-22 CN CN201810241348.8A patent/CN108411294A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104630765A (en) * | 2013-11-11 | 2015-05-20 | 安徽未来表面技术有限公司 | Environmental-protection type metal coating pre-treatment agent and preparation method thereof |
| CN106519300A (en) * | 2016-10-31 | 2017-03-22 | 无锡云亭石墨烯技术有限公司 | Preparation and application method for water-based modified graphene slurry |
| CN107217249A (en) * | 2017-05-27 | 2017-09-29 | 湖南金裕环保科技有限公司 | Graphene silane filming agent and preparation method thereof |
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| 李本高: "《现代工业水处理技术与应用》", 30 June 2004, 中国石化出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113755829A (en) * | 2021-08-16 | 2021-12-07 | 深圳市志凌伟业光电有限公司 | Blackening-treated copper film surface anticorrosion protective liquid medicine |
| CN113755829B (en) * | 2021-08-16 | 2024-05-07 | 深圳市志凌伟业技术股份有限公司 | Blackening-treated copper film surface anti-corrosion protection liquid medicine |
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Application publication date: 20180817 |
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