CN106148934A - A kind of copper material passivator and preparation, application - Google Patents
A kind of copper material passivator and preparation, application Download PDFInfo
- Publication number
- CN106148934A CN106148934A CN201610750106.2A CN201610750106A CN106148934A CN 106148934 A CN106148934 A CN 106148934A CN 201610750106 A CN201610750106 A CN 201610750106A CN 106148934 A CN106148934 A CN 106148934A
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- copper material
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- bta
- film forming
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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
- C23C22/06—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 acidic solutions with pH less than 6
- C23C22/48—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 acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
- C23C22/52—Treatment of copper or alloys based thereon
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- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The present invention relates to surface passivating treatment technical field, be specifically related to a kind of copper material passivator and preparation, application.Copper material passivator, by BTA 0.1 10 parts, wetting agent 0.1 10 parts, organic phospho acid 0.1 5 parts, absolute ethyl alcohol 0.1 10 parts, film forming matter 0.1 5 parts with complement to the water of 1000 parts and form.By BTA and absolute ethyl alcohol in water, stirring mixing promotes that the dissolving of BTA obtains colourless transparent solution；Then it is sequentially added into wetting agent, organic phospho acid and film forming matter, stirring mixing, be eventually adding remaining water, be uniformly mixed copper material passivator.Present invention introduces macromolecule resin class film forming matter, play synergy together with BTA, by baking operation, promoted quickly to be formed on copper material surface one layer of fine and close passivating film, reached excellent decay resistance.Its indoor lacing film nondiscolouring in 180 days of the passivating film that the passivator of the present invention is formed.
Description
Technical field
The present invention relates to surface passivating treatment technical field, be specifically related to a kind of copper material passivator and preparation, application.
Background technology
Copper material is widely used in electronics and decoration industry with its excellent performance and beautiful color and luster, but
Owing to the chemical property of copper material is relatively active, during it produces, uses and store and transport, it is easy to cause copper material surface discolouration and
Corrosion, has a strong impact on outward appearance and the electric conductivity of commodity, in order to improve its surface quality and service life, thus must prevent
Corrosion treatmentCorrosion Science.Passivation Treatment method is widely used because of advantages such as less energy consumption, simple, the easy operations of equipment.
Traditional copper material surface passivating treatment technique mainly includes the BTA of mineral-type chromate and organic
And mercaptobenzothiazoler (MBT) etc. (BTA).Owing to chromating facture contains Cr VI, belong to high poison, high pollution therefore this
The use planting technique receives strict restriction.BTA (BTA) belongs to organic heterocyclic molecule, has on copper material surface
Strong adsorption and the character of complexing, and the molecular volume of itself is relatively big, is so easier to form densification on copper material surface
There is the film of protectiveness, play the erosion-resisting effect of passivation.Most of in the market copper material passivator are all to join with based on BTA
The passivator put, but it is easy to occur the phenomenon such as macula lutea, resistance to corrosion be not good.
Therefore, develop a kind of be applicable to copper material Passivation Treatment nontoxic, environmental protection, the chrome-free tanning agent of salt fog resistance excellent performance
It is the big demand in market one.
Content of the invention
Present invention aims to the deficiencies in the prior art, a kind of copper material chrome-free tanning agent and preparation thereof are provided and answer
With this copper material chrome-free tanning agent has copper material surface passivating treatment agent nontoxic, chromium-free environment-friendly, salt fog resistance excellent performance, prepares
Passivator can be applicable to the surface passivating treatment of brass or red copper.
For achieving the above object, present invention employs techniques below scheme:
A kind of copper material passivator, is made up of the raw material of following weight portion:
Preferably, copper material passivator is made up of the raw material of following weight portion:
It is further preferred that copper material passivator is made up of the raw material of following weight portion:
The molecular formula of BTA is C6H5N3, outward appearance is white, needle-shaped crystals, prevents mainly as water treatment agent, metal
Rust agent and corrosion inhibiter.It is widely used in circulating water treatment agent, in antirust oil, lipid product, be also applied to the gas phase of copper and copper alloy
Corrosion inhibiter, lube oil additive.Purify silver, copper, zinc in order to surface in plating, have Anti-tarnishing effect.
OP-10 selected by wetting agent, and it is colourless to pale yellow transparent thick liquid, is mainly used as synthetic fiber oiling agent, drift
Diffusant in dye, levelling agent, oil field foaming agent, wetting agent, retardant, mud activating treatment agent, near wellbore zone inorganic agent, gold
Belong to the detergent of industry, agricultural chemicals, latex rubber agent etc..Present invention discover that OP-10, in copper passivator, plays certain wetting and makees
With effectively avoiding the macula lutea phenomenon of conventional BTA passivator.
The effect of organic phospho acid is: the 3d unoccupied orbital lone pair electrons of organic phospho acid can form stable coordination with copper ion
Compound, reduces the impact of water quality simultaneously.Organic phospho acid is selected from two methene phosphonate group glycine, hydroxyl own fork base di 2 ethylhexyl phosphonic acid, 2-phosphoric acid
One in base-1,2,4-butane tricarboxylate and hydroxy ethylene diphosphonic acid.
The effect of absolute ethyl alcohol is the dissolving promoting BTA, simultaneously works as certain volatilization, the effect of fast filming.
Film forming matter is macromolecule resin class film forming matter, is selected from polyacrylics, polyurethane based resin, polyethylene
One in alcohol resin, effect in the present invention is by subsequent operations such as drying, plays synergy together with BTA, promotees
Enter the surface rapid film formation at copper, thus reach excellent corrosion-resistant effect.
The preparation method of described copper material passivator, by BTA and absolute ethyl alcohol in the water of 300-500 part, stirring
Mixing promotes that the dissolving of BTA obtains colourless transparent solution；Then it is sequentially added into wetting agent, organic phospho acid and film forming matter
Matter, stirring mixing, it is eventually adding remaining water, be uniformly mixed copper material passivator.
The brass cleaning up or red copper, under normal temperature, are put in passivator by the application process of described copper material passivator
Row surface passivating treatment, soak time is 2-10min；Preferably, soak time is 5-8min.Then use air stream by copper material
The residual liquid on surface blows off without visible residual liquid, puts in drying tunnel and dries, and promotes film forming；Drying temperature is 70-
150 DEG C, drying time is 5-20min, preferably dries temperature 80-130 DEG C, drying time 5-10min.
Present invention introduces macromolecule resin class film forming matter, play synergy together with BTA, by baking operation, promote
Make quickly to be formed on copper material surface one layer of fine and close passivating film, reach excellent decay resistance.The passivation dosage form of the present invention
Its indoor lacing film nondiscolouring in 180 days of the passivating film becoming.
Beneficial effects of the present invention shows:
1st, the copper material passivator of the present invention has nontoxic, Chrome-free, safety and environmental protection.
2nd, the passivator of the present invention can complete Passivation Treatment, processing ease at normal temperatures, safeguards simple, and passivating process is not
Need to heat passivator, effectively reduce production cost and reduce energy loss.
3rd, present invention decay resistance, salt fog resistance excellent performance after passivation film forming, prepared passivator can be applicable to Huang
Copper or the surface passivating treatment of red copper.
Detailed description of the invention
Below with reference to embodiment, the present invention is described in detail.But, embodiment content is only to this
Bright example and explanation, described specific embodiment is done various repairing by affiliated those skilled in the art
Change or supplement or use similar mode to substitute, without departing from the design of invention or surmount defined in the claims
Scope, all should belong to protection scope of the present invention.
Embodiment 1
The preparation method of copper material passivator: by 3 parts of BTAs and 2.5 parts of absolute ethyl alcohols in the water of 400 parts, stirring
Mixing promotes that the dissolving of BTA obtains colourless transparent solution；Then it is sequentially added into 2 parts of OP-10,1 part of two methene phosphonate group
Glycine and 1.5 parts of polyacrylics, stirring mixing, it is eventually adding 590 parts of water, be uniformly mixed copper material passivator.
The brass cleaning up, red copper are put in passivator and carry out surface by the application process of copper material passivator: under normal temperature
Passivation Treatment, soak time is 8min.Then air stream is used to blow off the residual liquid on copper material surface without visible Liquid Residue
Body, puts in drying tunnel and dries, and promotes film forming；Drying temperature is 150 DEG C, and drying time is 5min.
Embodiment 2
The preparation method of copper material passivator: by 0.1 part of BTA and 10 parts of absolute ethyl alcohols in the water of 300 parts, stir
Mix mixing and promote that the dissolving of BTA obtains colourless transparent solution；Then it is sequentially added into 10 parts of OP-10, oneself fork of 0.1 part of hydroxyl
Base di 2 ethylhexyl phosphonic acid and 0.1 part of polyurethane based resin, stirring mixing, it is eventually adding 679.7 parts of water, be uniformly mixed copper material passivation
Agent.
The brass cleaning up, red copper are put in passivator and carry out surface by the application process of copper material passivator: under normal temperature
Passivation Treatment, soak time is 2min.Then air stream is used to blow off the residual liquid on copper material surface without visible Liquid Residue
Body, puts in drying tunnel and dries, and promotes film forming；Drying temperature is 80 DEG C, and drying time is 20min.
Embodiment 3
The preparation method of copper material passivator: by 8 parts of BTAs and 0.5 part of absolute ethyl alcohol in the water of 500 parts, stirring
Mixing promotes that the dissolving of BTA obtains colourless transparent solution；Then be sequentially added into 0.5 part of OP-10,3 parts of 2-phosphates-
1,2,4-butane tricarboxylate and 3 parts of polyvinyl alcohol resins, stirring mixing, it is eventually adding 485 parts of water, be uniformly mixed copper material blunt
Agent.
The brass cleaning up, red copper are put in passivator and carry out surface by the application process of copper material passivator: under normal temperature
Passivation Treatment, soak time is 5min.Then air stream is used to blow off the residual liquid on copper material surface without visible Liquid Residue
Body, puts in drying tunnel and dries, and promotes film forming；Drying temperature is 100 DEG C, and drying time is 10min.
Performance test:
Neutral salt spray test: with reference to GB/T 10125-1997 test.
Test result understands, the red copper after Passivation Treatment carries out neutral salt spray test, through 40-45 hour neutral salt
Mist is tested, and specimen surface is good without rust staining, glossiness, and the brass after Passivation Treatment carries out neutral salt spray test, through 20-
25 hours neutral salt spray tests, specimen surface is good without rust staining, glossiness.
Claims (8)
1. a copper material passivator, it is characterised in that be made up of the raw material of following weight portion:
2. copper material passivator as claimed in claim 1, it is characterised in that be made up of the raw material of following weight portion:
3. copper material passivator as claimed in claim 2, it is characterised in that be made up of the raw material of following weight portion:
4. the copper material passivator as described in claim 1 or 2 or 3, it is characterised in that: described organic phospho acid is selected from two methylenephosphonic acids
One in base glycine, hydroxyl own fork base di 2 ethylhexyl phosphonic acid, 2-phosphate-1,2,4-butane tricarboxylate and hydroxy ethylene diphosphonic acid.
5. the copper material passivator as described in claim 1 or 2 or 3, it is characterised in that: described wetting agent is OP-10.
6. the copper material passivator as described in claim 1 or 2 or 3, it is characterised in that: described film forming matter is macromolecule resin,
One in polyacrylics, polyurethane based resin, polyvinyl alcohol resin.
7. the method preparing copper material passivator as described in any one of claim 1-6, it is characterised in that: by BTA
With absolute ethyl alcohol in the water of 300-500 part, stirring mixing promotes that the dissolving of BTA obtains colourless transparent solution；Then
It is sequentially added into wetting agent, organic phospho acid and film forming matter, stirring mixing, be eventually adding remaining water, be uniformly mixed copper material
Passivator.
8. the application process of a copper material passivator as described in any one of claim 1-6, it is characterised in that: under normal temperature, will be clear
The brass of wash clean or red copper put in passivator and carry out surface passivating treatment, and soak time is 2-10min；Then air is used
The residual liquid on copper material surface is blown off without visible residual liquid by stream, puts in drying tunnel and dries, and promotes film forming；Dry temperature
Degree is 70-150 DEG C, and drying time is 5-20min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610750106.2A CN106148934A (en) | 2016-08-27 | 2016-08-27 | A kind of copper material passivator and preparation, application |
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| CN201610750106.2A CN106148934A (en) | 2016-08-27 | 2016-08-27 | A kind of copper material passivator and preparation, application |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111962082A (en) * | 2020-08-11 | 2020-11-20 | 湖北工程学院 | Green and environment-friendly copper foil antioxidant and anti-oxidation process using same |
| CN112064006A (en) * | 2020-09-23 | 2020-12-11 | 东莞长盈精密技术有限公司 | Passivation method for copper piece |
| CN112144049A (en) * | 2019-07-26 | 2020-12-29 | 佛山市顺德区新琪洗涤用品有限公司 | Copper material chromium-free passivator and preparation method and use method thereof |
| CN112725775A (en) * | 2020-12-24 | 2021-04-30 | 福达合金材料股份有限公司 | Protective agent for reducing contact resistance of magnetic latching relay and application thereof |
| 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 |
| CN115491679A (en) * | 2022-10-15 | 2022-12-20 | 厦门竞高电镀有限公司 | Environment-friendly copper anti-blushing agent and preparation thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112144049A (en) * | 2019-07-26 | 2020-12-29 | 佛山市顺德区新琪洗涤用品有限公司 | Copper material chromium-free passivator and preparation method and use method thereof |
| CN111962082A (en) * | 2020-08-11 | 2020-11-20 | 湖北工程学院 | Green and environment-friendly copper foil antioxidant and anti-oxidation process using same |
| CN112064006A (en) * | 2020-09-23 | 2020-12-11 | 东莞长盈精密技术有限公司 | Passivation method for copper piece |
| CN112725775A (en) * | 2020-12-24 | 2021-04-30 | 福达合金材料股份有限公司 | Protective agent for reducing contact resistance of magnetic latching relay and application thereof |
| 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 |
| CN115491679A (en) * | 2022-10-15 | 2022-12-20 | 厦门竞高电镀有限公司 | Environment-friendly copper anti-blushing agent and preparation thereof |
| CN115491679B (en) * | 2022-10-15 | 2024-04-02 | 厦门竞高电镀有限公司 | Environment-friendly copper anti-discoloration agent and preparation thereof |
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Application publication date: 20161123 |
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