CN108221026A - A kind of high gloss retention mid-temperature sealing agent of aluminaization and preparation method thereof - Google Patents
A kind of high gloss retention mid-temperature sealing agent of aluminaization and preparation method thereof Download PDFInfo
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- CN108221026A CN108221026A CN201810067907.8A CN201810067907A CN108221026A CN 108221026 A CN108221026 A CN 108221026A CN 201810067907 A CN201810067907 A CN 201810067907A CN 108221026 A CN108221026 A CN 108221026A
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- Prior art keywords
- mid
- sealing agent
- gloss retention
- aluminaization
- temperature sealing
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
- C25D11/246—Chemical after-treatment for sealing layers
Abstract
The invention discloses high gloss retention mid-temperature sealing agent of a kind of aluminaization and preparation method thereof, which is configured by weight percentage by following components：Nickel acetate 50 80%, cobalt acetate 0.1 2%, sodium acetate 1 6%, dispersant 6 16%, stabilizer 0 2%, pH buffer 1 8%, deionized water surplus.Alumina light mid-temperature sealing agent prepared by the present invention, raw material are easy to get, and component and manufacture craft are simple, greatly reduce the production cost of hole sealing agent.It acts synergistically between various auxiliary agents in confining liquid, stable chemical performance, service life is long.The sealing of hole time can be shortened, effectively close the porous layer of aluminium anode oxide film.Sealing of hole improves aluminium and the bright property of aluminum alloy surface, and device surface gloss retention is good after placement.
Description
Technical field
The invention belongs to alumite surface treatment and protection technology field, more specifically more particularly to a kind of alumina
Change high gloss retention mid-temperature sealing agent, meanwhile, the invention further relates to a kind of preparation methods of the high gloss retention mid-temperature sealing agent of aluminaization.
Background technology
Aluminium and its alloy are formed certain thickness generally using anodized surface guard technology in aluminium and its alloy surface
Oxidation film, aluminium anode oxide film have very high voidage and adsorption capacity, it is necessary to appropriate Seal treatment are carried out, if do not sealed
Hole or sealing quality are poor, and the pollutant in environment can carry out deep erosions by micro-porous adsorption disease, eventually lead to the use of aluminium device
Service life reduction.
Industrial common method for sealing has：High temperature hole sealing, cold seal hole, medium temperature sealing of hole, organic matter sealing of hole.Medium temperature sealing of hole pair
Temperature it is of less demanding, consumption low energy consumption, sealing of hole speed is fast, and efficiency is higher, and sealing of hole effect is also very excellent, and hole sealing agent is
Nickel acetate, stability is good, is easy to control, and meets industrial requirements.It is widely applied that this technology has become domestic aluminum profile industry
Sealing technique has a vast market prospect.
Aluminium organic sealing liquid does not corrode oxidation film while sealing of hole, should completely enclose, and cannot lose minute surface material
Light, discoloration, and meet weightless requirement.The oxidation film for protecting the generation of photooxidation slot is fine and close enough, has certain hardness, intensity, resistance to
Corrosion and wearability can meet the requirement of shelter to aluminium alloy, and liquor of hole- sealing tank need to be stablized relatively.Boiling water sealing hole protects photooxidation
Film blackening；Nickel fluoride sealing of hole protects photooxidation film and whitens, plays powder, serious loss of gloss.At present, workpiece is bright after pore-sealing liquid surface treatment
And the research of technique of light is protected, it is present in laboratory proofing stage, industrial production is difficult to realize, and fails to be used on a large scale so far more
Production.
Invention content
The purpose of the present invention is to solve shortcoming in the prior art, and a kind of corn insecticide for proposing and its
Preparation method.
To achieve the above object, the present invention provides following technical solution：A kind of high gloss retention mid-temperature sealing agent of aluminaization, should
Alumina light mid-temperature sealing agent is configured by weight percentage by following components：Nickel acetate 50-80%, cobalt acetate 0.1-
2%, sodium acetate 1-6%, dispersant 6-16%, stabilizer 0-2%, pH buffer 1-8%, deionized water surplus.
Preferably, the dispersant is 5- (2- aminoethyls ammonia) -1-naphthalene sulfonic aicd sodium, di-2-ethylhexylphosphine oxide naphthalene sulfonic acids disodium salt and first
It is one or more in base naphthalenesulfonate formaldehyde condensation compound.
Preferably, the stabilizer is that the molecular machinery formula of carboxylate derivatives is：
Wherein R1, R4 are one kind in hydrogen atom, methyl and ethyl；Wherein R2, R3 are hydroxyl, amino, phosphonic acid base, ethyl
With one kind in methylol.
Preferably, the pH buffer includes at least two in sodium benzoate, benzoic acid, ammonium hydroxide and propionic acid ammonia.
A kind of preparation method of the high gloss retention mid-temperature sealing agent of aluminaization, includes the following steps：
S1：Nickel acetate, cobalt acetate, sodium acetate are added in 50% deionized water in point ratio, stirs evenly, obtains
Stable mixed solution；
S2：Under agitation, bonus point powder and stabilizer successively into the solution that step S1 is obtained；
S3：Remaining deionized water is added in into the solution obtained by step S2, after being uniformly mixed, adds in pH bufferings
Agent, adjusting pH are 5-6.5, are uniformly mixed.
A kind of high gloss retention mid-temperature sealing agent of aluminaization, closing are as follows using technological parameter：Solution temperature：50-70℃；
Workpiece soaking time：5-18min；Solution ph：5-6.5.
The technique effect and advantage of the present invention：Alumina light mid-temperature sealing agent prepared by the present invention, raw material are easy to get, group
Divide and manufacture craft is simple, greatly reduce the production cost of hole sealing agent.It acts synergistically between various auxiliary agents in confining liquid, chemically
It can stablize, service life is long.The sealing of hole time can be shortened, effectively close the porous layer of aluminium anode oxide film.Sealing of hole improve aluminium and
The bright property of aluminum alloy surface, device surface gloss retention is good after placement.
Description of the drawings
Fig. 1 is the molecular structural formula of the stabilizer in the present invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.Based on the embodiments of the present invention, those of ordinary skill in the art are not before creative work is made
All other embodiments obtained are put, shall fall within the protection scope of the present invention.
Embodiment 1
A kind of high gloss retention mid-temperature sealing agent of aluminaization, the alumina light mid-temperature sealing agent is by following components by weight hundred
Ratio is divided to be configured：Nickel acetate 50%, cobalt acetate 1.5%, sodium acetate 4%, di-2-ethylhexylphosphine oxide naphthalene sulfonic acids disodium salt 8%, stabilizer
0.5%, benzoic acid 3%, sodium benzoate 1.5%, deionized water 31.5%.Wherein stabilizer, R1 is hydrogen atom in molecular formula, R2
For hydroxyl, R3 is amino, and R4 is methyl.
A kind of preparation method of the high gloss retention mid-temperature sealing agent of aluminaization, includes the following steps：
S1：Nickel acetate, cobalt acetate, sodium acetate are added in 50% deionized water in point ratio, stirs evenly, obtains
Stable mixed solution；
S2：Under agitation, add di-2-ethylhexylphosphine oxide naphthalene sulfonic acids disodium salt and stabilization successively into the solution that step S1 is obtained
Agent；
S3：Remaining deionized water is added in into the solution obtained by step S2, after being uniformly mixed, add in benzoic acid and
Sodium benzoate, it is 6 to adjust pH, is uniformly mixed.
Aluminum workpiece carries out anodic oxidation, is prepared into the oxidation film layers of 10-15 μ m-thicks, after aluminum workpiece is impregnated in
10 minutes in above-mentioned 65 DEG C of confining liquid, take out aluminum workpiece cleaning, air-dry.
Through visually inspecting：Aluminum workpiece surface-brightening, smooth, water stain-free, macula lutea and pollen after sealing of hole.Aluminum workpiece
Observation is taken out after placing three months, workpiece surface is bright, it was demonstrated that its gloss retention is good.
The aluminum workpiece of sealing of hole is carried out by national standard (the phosphorus chromic acid method of GB/T8753.2-2005 nitric acid preimpregnation)
Detection, sealing of hole weightlessness are 10.9mg/dm2.By national standard (GB/T8753.4-2005 acid treated dye speck method) to aluminium
Article workpiece is dyed, and dyeing grade is 0 grade, and anti-dye adsorption capacity is strong, illustrates seal quality qualification, contamination resistance
By force.
Embodiment 2
A kind of high gloss retention mid-temperature sealing agent of aluminaization, the alumina light mid-temperature sealing agent is by following components by weight hundred
Ratio is divided to be configured：Nickel acetate 60%, cobalt acetate 1.5%, sodium acetate 5%, di-2-ethylhexylphosphine oxide naphthalene sulfonic acids disodium salt 10%, stabilizer
0.3%, benzoic acid 3.5%, sodium benzoate 1%, deionized water 18.7%.Wherein stabilizer, R1 is hydrogen atom in molecular formula, R2
For hydroxyl, R3 is amino, and R4 is methyl.
A kind of preparation method of the high gloss retention mid-temperature sealing agent of aluminaization, includes the following steps：
S1：Nickel acetate, cobalt acetate, sodium acetate are added in 50% deionized water in point ratio, stirs evenly, obtains
Stable mixed solution；
S2：Under agitation, add di-2-ethylhexylphosphine oxide naphthalene sulfonic acids disodium salt and stabilization successively into the solution that step S1 is obtained
Agent；
S3：Remaining deionized water is added in into the solution obtained by step S2, after being uniformly mixed, add in benzoic acid and
Sodium benzoate, it is 5.5 to adjust pH, is uniformly mixed.
Aluminum workpiece carries out anodic oxidation, is prepared into the oxidation film layers of 10-15 μ m-thicks, after aluminum workpiece is impregnated in
15 minutes in above-mentioned 60 DEG C of confining liquid, take out aluminum workpiece cleaning, air-dry.
Through visually inspecting：Aluminum workpiece surface-brightening, smooth, water stain-free, macula lutea and pollen after sealing of hole.Aluminum workpiece
Observation is taken out after placing three months, workpiece surface is bright, it was demonstrated that its gloss retention is good.
The aluminum workpiece of sealing of hole is carried out by national standard (the phosphorus chromic acid method of GB/T8753.2-2005 nitric acid preimpregnation)
Detection, sealing of hole weightlessness are 9.6mg/dm2.By national standard (GB/T8753.4-2005 acid treated dye speck method) to aluminium
Article workpiece is dyed, and dyeing grade is 0 grade, and anti-dye adsorption capacity is strong, illustrates seal quality qualification, contamination resistance
By force.
Embodiment 3
A kind of high gloss retention mid-temperature sealing agent of aluminaization, the alumina light mid-temperature sealing agent is by following components by weight hundred
Ratio is divided to be configured：Nickel acetate 75%, cobalt acetate 0.5%, sodium acetate 2%, 5- (2- aminoethyls ammonia) -1-naphthalene sulfonic aicd sodium 7%, surely
Determine agent 0.2%, benzoic acid 3.5%, ammonium hydroxide 1%, deionized water 10.8%.Wherein stabilizer, R1 is hydrogen atom in molecular formula, R2
For hydroxyl, R3 is amino, and R4 is ethyl.
A kind of preparation method of the high gloss retention mid-temperature sealing agent of aluminaization, includes the following steps：
S1：Nickel acetate, cobalt acetate, sodium acetate are added in 50% deionized water in point ratio, stirs evenly, obtains
Stable mixed solution；
S2：Under agitation, into the solution that step S1 is obtained successively plus 5- (2- aminoethyls ammonia) -1-naphthalene sulfonic aicd sodium and
Stabilizer；
S3：Remaining deionized water is added in into the solution obtained by step S2, after being uniformly mixed, add in benzoic acid and
Ammonium hydroxide, it is 6 to adjust pH, is uniformly mixed.
Aluminum workpiece carries out anodic oxidation, is prepared into the oxidation film layers of 10-15 μ m-thicks, after aluminum workpiece is impregnated in
10 minutes in above-mentioned 60 DEG C of confining liquid, take out aluminum workpiece cleaning, air-dry.
Through visually inspecting：Aluminum workpiece surface-brightening, smooth, water stain-free, macula lutea and pollen after sealing of hole.Aluminum workpiece
Observation is taken out after placing three months, workpiece surface is bright, it was demonstrated that its gloss retention is good.
The aluminum workpiece of sealing of hole is carried out by national standard (the phosphorus chromic acid method of GB/T8753.2-2005 nitric acid preimpregnation)
Detection, sealing of hole weightlessness are 9.3mg/dm2.By national standard (GB/T8753.4-2005 acid treated dye speck method) to aluminium
Article workpiece is dyed, and dyeing grade is 0 grade, and anti-dye adsorption capacity is strong, illustrates seal quality qualification, contamination resistance
By force.
Embodiment 4
A kind of high gloss retention mid-temperature sealing agent of aluminaization, the alumina light mid-temperature sealing agent is by following components by weight hundred
Ratio is divided to be configured：Nickel acetate 70%, cobalt acetate 1%, sodium acetate 3%, methyl naphthalene sulfonic acid salt formaldehyde condensation products 10%, stabilizer
1%, propionic acid ammonia 3.5%, ammonium hydroxide 0.5%, deionized water 11%.Wherein stabilizer, R1 is hydrogen atom in molecular formula, and R2 is hydroxyl
Base, R3 are methylol, and R4 is hydrogen atom.
A kind of preparation method of the high gloss retention mid-temperature sealing agent of aluminaization, includes the following steps：
S1：Nickel acetate, cobalt acetate, sodium acetate are added in 50% deionized water in point ratio, stirs evenly, obtains
Stable mixed solution；
S2：Under agitation, the methylate naphthalenesulfonate formaldehyde condensation compound and steady successively into the solution that step S1 is obtained
Determine agent；
S3：Remaining deionized water is added in into the solution obtained by step S2, after being uniformly mixed, add in propionic acid ammonia and
Ammonium hydroxide, it is 6 to adjust pH, is uniformly mixed.
Aluminum workpiece carries out anodic oxidation, is prepared into the oxidation film layers of 10-15 μ m-thicks, after aluminum workpiece is impregnated in
15 minutes in above-mentioned 65 DEG C of confining liquid, take out aluminum workpiece cleaning, air-dry.
Through visually inspecting：Aluminum workpiece surface-brightening, smooth, water stain-free, macula lutea and pollen after sealing of hole.Aluminum workpiece
Observation is taken out after placing three months, workpiece surface is bright, it was demonstrated that its gloss retention is good.
The aluminum workpiece of sealing of hole is carried out by national standard (the phosphorus chromic acid method of GB/T8753.2-2005 nitric acid preimpregnation)
Detection, sealing of hole weightlessness are 9.4mg/dm2.By national standard (GB/T8753.4-2005 acid treated dye speck method) to aluminium
Article workpiece is dyed, and dyeing grade is 0 grade, and anti-dye adsorption capacity is strong, illustrates seal quality qualification, contamination resistance
By force.
Embodiment 5
A kind of high gloss retention mid-temperature sealing agent of aluminaization, the alumina light mid-temperature sealing agent is by following components by weight hundred
Ratio is divided to be configured：Nickel acetate 78%, cobalt acetate 0.5%, sodium acetate 1%, methyl naphthalene sulfonic acid salt formaldehyde condensation products 6% are stablized
Agent 0.5%, benzoic acid 3.5%, sodium benzoate 0.8%, deionized water 9.7%.Wherein stabilizer, R1 is methyl in molecular formula,
R2 is hydroxyl, and R3 is amino, and R4 is hydrogen atom.
A kind of preparation method of the high gloss retention mid-temperature sealing agent of aluminaization, includes the following steps：
S1：Nickel acetate, cobalt acetate, sodium acetate are added in 50% deionized water in point ratio, stirs evenly, obtains
Stable mixed solution；
S2：Under agitation, the methylate naphthalenesulfonate formaldehyde condensation compound and steady successively into the solution that step S1 is obtained
Determine agent；
S3：Remaining deionized water is added in into the solution obtained by step S2, after being uniformly mixed, add in benzoic acid and
Sodium benzoate, it is 5.5 to adjust pH, is uniformly mixed.
Aluminum workpiece carries out anodic oxidation, is prepared into the oxidation film layers of 10-15 μ m-thicks, after aluminum workpiece is impregnated in
12 minutes in above-mentioned 65 DEG C of confining liquid, take out aluminum workpiece cleaning, air-dry.
Through visually inspecting：Aluminum workpiece surface-brightening, smooth, water stain-free, macula lutea and pollen after sealing of hole.Aluminum workpiece
Observation is taken out after placing three months, workpiece surface is bright, it was demonstrated that its gloss retention is good.
The aluminum workpiece of sealing of hole is carried out by national standard (the phosphorus chromic acid method of GB/T8753.2-2005 nitric acid preimpregnation)
Detection, sealing of hole weightlessness are 8.0mg/dm2.By national standard (GB/T8753.4-2005 acid treated dye speck method) to aluminium
Article workpiece is dyed, and dyeing grade is 0 grade, and anti-dye adsorption capacity is strong, illustrates seal quality qualification, contamination resistance
By force.
In summary：Alumina light mid-temperature sealing agent provided by the invention, raw material are easy to get, component and manufacture craft letter
It is single, greatly reduce the production cost of hole sealing agent.It acts synergistically between various auxiliary agents in confining liquid, stable chemical performance uses the longevity
Life length.The sealing of hole time can be shortened, effectively close the porous layer of aluminium anode oxide film.Sealing of hole improves aluminium and the light of aluminum alloy surface
Bright property, device surface gloss retention is good after placement.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify to the technical solution recorded in foregoing embodiments or carry out equivalent replacement to which part technical characteristic,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (6)
1. a kind of high gloss retention mid-temperature sealing agent of aluminaization, it is characterised in that：The alumina light mid-temperature sealing agent is by with the following group
Divide and be configured by weight percentage：Nickel acetate 50-80%, cobalt acetate 0.1-2%, sodium acetate 1-6%, dispersant 6-16%,
Stabilizer 0-2%, pH buffer 1-8%, deionized water surplus.
2. a kind of high gloss retention mid-temperature sealing agent of aluminaization according to claim 1, it is characterised in that：The dispersant is
One in 5- (2- aminoethyls ammonia) -1-naphthalene sulfonic aicd sodium, di-2-ethylhexylphosphine oxide naphthalene sulfonic acids disodium salt and methyl naphthalene sulfonic acid salt formaldehyde condensation products
Kind is a variety of.
3. a kind of high gloss retention mid-temperature sealing agent of aluminaization according to claim 1, it is characterised in that：The stabilizer is
The molecular machinery formula of carboxylate derivatives is：
Wherein R1, R4 are one kind in hydrogen atom, methyl and ethyl；Wherein R2, R3 are hydroxyl, amino, phosphonic acid base, ethyl and hydroxyl
One kind in methyl.
4. a kind of high gloss retention mid-temperature sealing agent of aluminaization according to claim 1, it is characterised in that：The pH buffer
Including at least two in sodium benzoate, benzoic acid, ammonium hydroxide and propionic acid ammonia.
5. a kind of preparation method of the high gloss retention mid-temperature sealing agent of aluminaization described in claim 1, it is characterised in that：Including such as
Lower step：
S1：Nickel acetate, cobalt acetate, sodium acetate are added in 50% deionized water in point ratio, stirs evenly, is stablized
Mixed solution；
S2：Under agitation, bonus point powder and stabilizer successively into the solution that step S1 is obtained；
S3：Remaining deionized water is added in into the solution obtained by step S2, after being uniformly mixed, pH buffer is added in, adjusts
Section pH is 5-6.5, is uniformly mixed.
6. the high gloss retention mid-temperature sealing agent of a kind of aluminaization according to claim 1, closing is as follows using technological parameter：
Solution temperature：50-70℃；Workpiece soaking time：5-18min；Solution ph：5-6.5.
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| CN201810067907.8A CN108221026A (en) | 2018-01-18 | 2018-01-18 | A kind of high gloss retention mid-temperature sealing agent of aluminaization and preparation method thereof |
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| CN201810067907.8A CN108221026A (en) | 2018-01-18 | 2018-01-18 | A kind of high gloss retention mid-temperature sealing agent of aluminaization and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323965A (en) * | 2008-07-24 | 2008-12-17 | 武汉材料保护研究所 | Middle temperature sealant and closing process for aluminum anodized film |
| CN101864589A (en) * | 2010-06-11 | 2010-10-20 | 武汉材料保护研究所 | Metal salt-free sealing agent for aluminum alloy anodic oxide film |
| CN103952743A (en) * | 2014-05-12 | 2014-07-30 | 苏州禾川化学技术服务有限公司 | Medium-temperature aluminum oxidation aftertreatment agent |
| CN106245088A (en) * | 2016-08-30 | 2016-12-21 | 江苏飞拓界面工程科技有限公司 | A kind of aluminium alloy anode oxide film is without nickel free-floride cold sealing agent |
-
2018
- 2018-01-18 CN CN201810067907.8A patent/CN108221026A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323965A (en) * | 2008-07-24 | 2008-12-17 | 武汉材料保护研究所 | Middle temperature sealant and closing process for aluminum anodized film |
| CN101864589A (en) * | 2010-06-11 | 2010-10-20 | 武汉材料保护研究所 | Metal salt-free sealing agent for aluminum alloy anodic oxide film |
| CN103952743A (en) * | 2014-05-12 | 2014-07-30 | 苏州禾川化学技术服务有限公司 | Medium-temperature aluminum oxidation aftertreatment agent |
| CN106245088A (en) * | 2016-08-30 | 2016-12-21 | 江苏飞拓界面工程科技有限公司 | A kind of aluminium alloy anode oxide film is without nickel free-floride cold sealing agent |
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