CN106905812A - A kind of aluminium sheet of anti-solvent corrosion and preparation method thereof - Google Patents
A kind of aluminium sheet of anti-solvent corrosion and preparation method thereof Download PDFInfo
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- CN106905812A CN106905812A CN201510974378.6A CN201510974378A CN106905812A CN 106905812 A CN106905812 A CN 106905812A CN 201510974378 A CN201510974378 A CN 201510974378A CN 106905812 A CN106905812 A CN 106905812A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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Abstract
The invention provides a kind of aluminium sheet of anti-solvent corrosion and preparation method thereof, mainly by aluminium sheet, alumina layer, silane coupling agent layer and epoxy coating are constituted.Alumina layer by aluminium sheet as obtained by being placed in the oxidation of oxygen atmosphere high temperature；Silane coupling agent layer is lifted by dip-coating and is coated in alumina layer surface；Epoxy coating is lifted by dip-coating and is coated on silane coupling agent layer.Surface of aluminum plate of the invention is prepared for epoxy anticorrosion erosion resisting coating by way of with chemical bonds, and coating is strong with aluminium sheet adhesion, and solvent resistance is good, is effectively protected the solvent resistant corrosion of aluminium sheet.
Description
Technical field
The present invention relates to aluminium sheet material, more particularly to a kind of aluminium sheet of anti-solvent corrosion and preparation method thereof.
Background technology
Aluminum products device at some under being chronically at solvent environment, such as aluminium electrode of coating on a ceramic substrate, due to by molten
The long-term corrosion of agent molecule, on the one hand causes the decline of aluminium electrode performance, on the other hand easily causes coming off for aluminium electrode, seriously
Have impact on the performance and physical life of aluminum products device, therefore surfacecti proteon treatment to aluminum products device seems extremely important.
Treatment technology species to aluminium surface is more, and the anodized of such as aluminium surface, with aluminum or aluminum alloy product as anode, is put
Energization treatment is carried out in electrolyte solution, its surface is formed the process of aluminum oxide film using electrolysis, by anodic oxygen
Change process, aluminium surface can generate several microns of oxide-film, compared with the Natural Oxide Film of aluminium alloy, its corrosion resistance, wearability and
Dicoration all improves significantly and improves, but anodized complex process, troublesome poeration；One layer is plated again in aluminium surface
Inert metal can also be effectively reduced the solvent corrosion of aluminum products, general to use vapour deposition or magnetron sputtering technique, but lazy
Costly, vapour deposition or magnetron sputtering technique are relatively costly in addition, operation duration for property metal price general charged, production efficiency compared with
It is low, also limit application；Organic compound coating technology is always well metal due to easy to operate, with low cost, protection effect
The first-selection of device surface protection.But, general organic coatings are only in device by coating liquid by dip-coating or spray application
Part surface, is only to lean on physical connection between coating and device, and adhesion is not strong, is easily caused to apply by the corrosion of solvent molecule
Layer failure and peeling, increased the secondary cost studied for a second time courses one has flunked.
The content of the invention
In order to solve above-mentioned the deficiencies in the prior art, aluminium sheet and its preparation side it is an object of the invention to provide a kind of anti-solvent corrosion
Method.
Technical scheme is as follows：
A kind of aluminium sheet of anti-solvent corrosion, sequentially includes：Aluminium sheet, alumina layer, silane coupling agent layer, epoxy coating, wherein
The alumina layer is formed by the surface oxidation of the aluminium sheet.
Further, the thickness of the alumina layer is 10~30nm, and the thickness of the silane coupling agent layer is 1~20nm, epoxy
The thickness of coating is 2-20 μm.
Further, described silane coupling agent layer can be selected from gamma-amino propyl trimethoxy silicane, the second of gamma-amino propyl group three
TMOS, γ-glycidyl ether oxygen propyl trimethoxy silicane, γ-methacryloxypropyl trimethoxy silane, N-
β (aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane, N- β (aminoethyl)-γ-aminopropyltrimethoxysilane, N- β (ammonia second
Base)-gamma-aminopropyl-triethoxy-silane, γ-aminopropyltriethoxy diethoxy silane, diethylin for MTES,
MTES, phenyl triethoxysilane, double (3- triethoxysilylpropyltetrasulfides) amine, double (3- trimethoxy first
Ethoxysilylpropyl) amine, double (trimethoxy silicon substrate ethane), double (triethoxy silicon substrate) ethane, double (trimethoxysilyl first
Base) ethene, double (3- trimethoxy silicon propyl group) fumarates, double (triethoxy silicon substrate) ethene, double [(trimethoxy silicon substrate) second
Base] benzene, double [3- (trimethoxy silicon substrate) propyl group] ethylenediamines, double [(trimethoxy silicon substrate) methyl] benzene, double (3- (methylamino) propyl group)
One or more in trimethoxy silane.
Further, described silane coupling agent layer is preferably by 3- TSL 8330s, double (3- trimethyoxysilanes
Base propyl group) amine and γ-glycidyl ether oxygen propyl trimethoxy silicane composition mixture, wherein 3- TSL 8330s
It is 1 with the mol ratio of γ-glycidyl ether oxygen propyl trimethoxy silicane:1~1:3, double (3- trimethoxy-silylpropyls) amine with
The mol ratio of (3- TSL 8330s and γ-glycidyl ether oxygen propyl trimethoxy silicane) total amount is 1:1~3:1.
Further, described epoxy coating includes epoxy resin and organic-silicon-modified epoxy resin.
Described epoxy resin and described modifying epoxy resin by organosilicon is individually double-component curing system.
Further, the epoxy resin is bisphenol A type epoxy resin, and epoxide number is more than 0.4, preferably E56, E55, E54,
One or more in E51, E44, E42, more preferably E51.
Further, the organic-silicon-modified epoxy resin, epoxide number is including DOW CORNING SF-8421EG between 0.25-0.3
Resin；Or be condensed in the presence of a catalyst with bisphenol A type epoxy resin by PSI prepared.
A kind of preparation method of the aluminium sheet of anti-solvent corrosion, comprises the following steps：
1) aluminium sheet is placed in the oxidation of oxygen atmosphere high temperature, obtains alumina layer；
2) silane coupler after hydrolyzing in a solvent is coated on alumina layer surface, obtains silane coupling agent layer；
3) epoxy resin or organic-silicon-modified epoxy resin are mixed with curing agent, is coated on silane coupling agent layer, after solidification,
Epoxy coating is obtained, the aluminium sheet of anti-solvent corrosion is finally obtained.
Further, step 1) in, high-temperature temperature is 200-400 DEG C, and oxidization time is 2-8h.
Further, step 1) include again：By surface of aluminum plate respectively by being cleared at acetone, ethanol and deionized water ultrasonic circulation
Wash, the aluminium sheet after cleaning is placed in the high temperature furnace of oxygen atmosphere, humidity more than 50%, cooled down after oxidation and taken out.
Further, step 2) in, silane coupler weight percent concentration in a solvent is 0.5~5%, preferably
0.5~2%, the solvent includes ethanol, isopropanol, normal propyl alcohol, preferably n-butanol, isopropanol.
Further, step 3) in, the curing agent includes diethylenetriamine, triethylene tetramine, TEPA, trimethyl
Hexamethylene diamine, trimethylhexane diamine, hexamethylene diamine modifier, hexamethylene diamine adduct, diamines hexahydrotoluene, aminoethyl croak
Piperazine, IPD, diaminourea thiacyclohexane, diaminomethyl cyclohexyl methane, diaminourea cyclohexyl methane, m-phenylene diamine (MPD),
M-xylene diamine, diaminodiphenyl-methane, diamino diphenyl sulfone, an aminomethylamine, benzene dimethylamine tripolymer, Benzophenone
Carboxylic acid dianhydride, MNA, tetrabydrophthalic anhydride, methyl tetrahydrophthalic anhydride,
Glutaric anhydride, pyromellitic dianhydride；It is preferred that diaminodiphenyl-methane, diamino diphenyl sulfone.
Technique effect
The present invention is prepared for epoxy anticorrosion erosion resisting coating, coating and aluminium sheet adhesion in surface of aluminum plate by way of chemical bonds
By force, solvent resistance is good, is effectively protected the solvent resistant corrosion of aluminium sheet.
Specific embodiment
A kind of aluminium sheet of anti-solvent corrosion, mainly by aluminium sheet, alumina layer, silane coupling agent layer and epoxy coating are constituted.
Alumina layer on aluminium sheet is formed by the surface oxidation treatment to the aluminium sheet.The purpose of the surface oxidation treatment of aluminium sheet
It is to form the alumina layer with substantial amounts of oh group by surface of aluminum plate, so as to provide be reacted with silane coupler
Anchor point.The surface oxidation treatment of the aluminium sheet is realized by following steps, surface of aluminum plate is passed through into acetone, ethanol respectively
With deionized water ultrasonic circulation treatment cleaning three times, aluminium sheet after cleaning is placed in the high temperature furnace of oxygen atmosphere, humidity more than 50%,
Cooled down after the oxidation regular hour and taken out.Purpose of the humidity more than 50% is to provide enough hydrones and the alumina layer table for being formed
There is absorption and combine in face, hydroxyl is provided further across high temperature.
The selection one of silane coupling agent layer is to meet chemical bonds occur with alumina layer, and two is to meet to be sent out with epoxy coating
Biochemical reaction.
Silane coupler can be selected from by gamma-amino propyl trimethoxy silicane, γ aminopropyltriethoxy silane, γ-shrink
Glycerine ether oxygen propyl trimethoxy silicane, γ-methacryloxypropyl trimethoxy silane, N- β (aminoethyl)-γ-ammonia third
Ylmethyl dimethoxysilane, N- β (aminoethyl)-γ-aminopropyltrimethoxysilane, the second of N- β (aminoethyl)-γ-aminopropyl three
TMOS, γ-aminopropyltriethoxy diethoxy silane, diethylin for MTES, MTES,
Phenyl triethoxysilane, double (3- triethoxysilylpropyltetrasulfides) amine, double (3- trimethoxy-silylpropyls) amine are double
(trimethoxy silicon substrate ethane), double (triethoxy silicon substrate) ethane, double (trimethoxysilyl methyl) ethene, double (3- trimethoxies
Base silicon propyl group) fumarate, double (triethoxy silicon substrate) ethene, double [(trimethoxy silicon substrate) ethyl] benzene, double [3- (trimethoxies
Silicon substrate) propyl group] ethylenediamine, double [(trimethoxy silicon substrate) methyl] benzene, the one kind in double (3- (methylamino) propyl group) trimethoxy silanes
Or several mixtures.
In order to obtain the coating of good Corrosion Protection, preferred 3- TSL 8330s, double (3- trimethoxies in the present invention
Base silylpropyl) amine and γ-glycidyl ether oxygen propyl trimethoxy silicane composition.Because double (3- trimethoxies
Silylpropyl) amine can be as crosslinking agent so that and coating crosslinking is fine and close, prevents the infiltration of solvent molecule.
Silane coupling agent layer of the invention, 3- TSL 8330s, double (3- trimethoxy-silylpropyls)
The ratio of amine and γ-glycidyl ether oxygen propyl trimethoxy silicane is mol ratio, wherein 3- TSL 8330s and γ
The ratio of-glycidyl ether oxygen propyl trimethoxy silicane is 1:1~1:3, preferably 1:2；Double (3- trimethoxy-silylpropyls) amine
It is 1 with the ratio of 3- TSL 8330s and γ-glycidyl ether oxygen propyl trimethoxy silicane total amount:1~1:3, preferably
1:2。
Silane coupling agent layer of the invention, the concentration of its silane coupler is 0.5~5%, preferably 0.5~2%, and solvent includes second
Alcohol, isopropanol, normal propyl alcohol, preferably n-butanol, isopropanol.
Epoxy resin of the invention be bisphenol A type epoxy resin, epoxide number more than 0.4 and more than, instantiation include E56,
E55, E54, E51, E44, E42, these epoxy resin can be used individually or with its two or more combination, preferably E51.
Organic-silicon-modified epoxy resin of the invention, epoxide number is between 0.25-0.3, instantiation includes DOW CORNING
SF-8421EG resins；Can also be in the presence of a catalyst condensed with bisphenol A type epoxy resin by PSI prepared
's.
The curing agent of epoxy resin of the invention or modifying epoxy resin by organosilicon, from the preferable class curing agent of heat resistance,
Instantiation include diethylenetriamine, triethylene tetramine, TEPA, trimethylhexamethylenediamine, trimethylhexane diamine,
Hexamethylene diamine modifier, hexamethylene diamine adduct, diamines hexahydrotoluene, aminoethyl croak piperazine, IPD, diamino basic ring is
Alkane, diaminomethyl cyclohexyl methane, diaminourea cyclohexyl methane, m-phenylene diamine (MPD), m-xylene diamine, diaminodiphenyl-methane,
Diamino diphenyl sulfone, an aminomethylamine, benzene dimethylamine tripolymer, benzophenone tetracarboxylic dianhydride, methine tetrahydrochysene neighbour benzene in methyl
Dicarboxylic acid anhydride, tetrabydrophthalic anhydride, methyl tetrahydrophthalic anhydride, glutaric anhydride, pyromellitic dianhydride；It is preferred that two
Aminodiphenylmethane, diamino diphenyl sulfone.
Embodiment 1
One piece of surface of aluminum plate of 5*5cm is passed through acetone, ethanol and deionized water ultrasound 20min, circular treatment at 50 hz respectively
Cleaning three times, the aluminium sheet after cleaning is placed in oxygen atmosphere, in the high temperature furnace that humidity is 50%, and temperature is 200 DEG C, aoxidizes 2h
Cooling afterwards is taken out, and obtains surface oxidation aluminium lamination；
By 0.18g 3- TSL 8330s, double (3- trimethoxy-silylpropyls) amine of 0.51g and 0.47g γ-shrink
Glycerine ether oxygen propyl trimethoxy silicane is hydrolyzed 2 hours in 22.0g isopropanols, and the aluminium sheet on surface then is immersed in into solution of silane
In, lift out after 10s, it is placed in 60 DEG C of baking ovens and dries 1h, obtain the thick silane coupling agent layers of 100nm；
Epoxy resin E51 and curing agent diaminodiphenyl-methane are prepared by solidification proportioning, is coated on silane coupling agent layer, in
Solidify 24 hours at 80 DEG C, obtain the epoxy coating of 2 μ m-thicks, as a result as shown in table 1.
Embodiment 2
One piece of surface of aluminum plate of 5*5cm is passed through acetone, ethanol and deionized water ultrasound 20min, circular treatment at 50 hz respectively
Cleaning three times, the aluminium sheet after cleaning is placed in oxygen atmosphere, in the high temperature furnace that humidity is 50%, and temperature is 300 DEG C, aoxidizes 30min
Cooling afterwards is taken out, and obtains surface oxidation aluminium lamination；
By 0.18g3- TSL 8330s, double (3- trimethoxy-silylpropyls) amine of 0.68g and 0.236g γ-shrink
Glycerine ether oxygen propyl trimethoxy silicane is hydrolyzed 2 hours in 35.4g ethanol, and then the aluminium sheet on surface is immersed in solution of silane,
Lift out after 10s, be placed in 60 DEG C of baking ovens and dry 1h, obtain the thick silane coupling agent layers of 60nm；
Epoxy resin E55 and curing agent diaminourea cyclohexyl methane are prepared by solidification proportioning, is coated on silane coupling agent layer, in
Solidify 24 hours at 80 DEG C, obtain the epoxy coating of 10 μ m-thicks, as a result as shown in table 1.
Embodiment 3
One piece of surface of aluminum plate of 5*5cm is passed through acetone, ethanol and deionized water ultrasound 20min, circular treatment at 50 hz respectively
Cleaning three times, the aluminium sheet after cleaning is placed in oxygen atmosphere, in the high temperature furnace that humidity is 60%, and temperature is 400 DEG C, aoxidizes 30min
Cooling afterwards is taken out, and obtains surface oxidation aluminium lamination；
By 0.18g3- TSL 8330s, double (3- trimethoxy-silylpropyls) amine of 0.45g and 0.716g γ-shrink
Glycerine ether oxygen propyl trimethoxy silicane is hydrolyzed 2 hours in 269g isopropanols, and the aluminium sheet on surface then is immersed in into solution of silane
In, lift out after 10s, it is placed in 60 DEG C of baking ovens and dries 1h, obtain the thick silane coupling agent layers of 20nm；
Modifying epoxy resin by organosilicon SF-8421EG resins and curing agent triethylene tetramine are prepared by solidification proportioning, silicon is coated on
On alkane coupling agent layer, in solidifying 24 hours at 80 DEG C, the epoxy coating result for obtaining 20 μ m-thicks is as shown in table 1.
Embodiment 4
One piece of surface of aluminum plate of 5*5cm is passed through acetone, ethanol and deionized water ultrasound 20min, circular treatment at 50 hz respectively
Cleaning three times, the aluminium sheet after cleaning is placed in oxygen atmosphere, in the high temperature furnace that humidity is 50%, and temperature is 400 DEG C, aoxidizes 30min
Cooling afterwards is taken out, and obtains surface oxidation aluminium lamination；
By 0.248g γ-methacryloxypropyl trimethoxy silane, double (3- trimethoxy-silylpropyls) amine of 0.68g and
0.236g γ-glycidyl ether oxygen propyl trimethoxy silicane is hydrolyzed 2 hours in 35.4g ethanol, then immerses the aluminium sheet on surface
To in solution of silane, lift out after 10s, be placed in 60 DEG C of baking ovens and dry 1h, obtain the thick silane coupling agent layers of 80nm；
Modifying epoxy resin by organosilicon SF-8421EG resins and curing agent diamino diphenyl sulfone are prepared by solidification proportioning, is coated
In on silane coupling agent layer, in solidifying 24 hours at 80 DEG C, the epoxy coating of 10 μ m-thicks is obtained, as a result as shown in table 1.
Comparative example 1
One piece of surface of aluminum plate of 5*5cm is passed through acetone, ethanol and deionized water ultrasound 20min, circular treatment at 50 hz respectively
Cleaning three times, then directly by 0.18g3- TSL 8330s, double (3- trimethoxy-silylpropyls) amine of 0.51g
Hydrolyzed in 22.0g isopropanols 2 hours with 0.47g γ-glycidyl ether oxygen propyl trimethoxy silicane, then soak the aluminium sheet on surface
Enter in solution of silane, lift out after 10s, be placed in 60 DEG C of baking ovens and dry 1h, obtain the thick silane coupling agent layers of 100nm；
Epoxy resin E51 and curing agent diaminodiphenyl-methane are prepared by solidification proportioning, is coated on silane coupling agent layer, in
Solidify 24 hours at 80 DEG C, obtain the epoxy coating of 3 μ m-thicks, as a result as shown in table 1.
Comparative example 2
Sample as a comparison, by one piece of surface of aluminum plate of 5*5cm respectively by being cleared at acetone, ethanol and deionized water ultrasonic circulation
After washing three times, modifying epoxy resin by organosilicon SF-8421EG resins and curing agent diamino diphenyl sulfone are prepared by solidification proportioning,
It is coated on silane coupling agent layer, in solidifying 24 hours at 80 DEG C, obtains the epoxy coating of 10 μ m-thicks, as a result as shown in table 1.
The coating solvent resistance of table 1 and adhesive force table
Solvent resistance：It is that will apply cated aluminium flake to be separately immersed in 60 DEG C and 80 DEG C of butyl acetate, cyclohexanone, immersion is certain
Time observation surface condition.
Adhesive force is tested：Tested using scratch.
Claims (10)
1. a kind of aluminium sheet of anti-solvent corrosion, sequentially includes：Aluminium sheet, alumina layer, silane coupling agent layer, epoxy coating, wherein
The alumina layer is formed by the surface oxidation of the aluminium sheet.
2. the aluminium sheet of anti-solvent corrosion as claimed in claim 1, it is characterised in that the thickness of the alumina layer is 10~30nm,
The thickness of the silane coupling agent layer is 1~20nm, and the thickness of epoxy coating is 2-20 μm.
3. the aluminium sheet of anti-solvent corrosion as claimed in claim 1, it is characterised in that described silane coupling agent layer can be selected from
Gamma-amino propyl trimethoxy silicane, γ aminopropyltriethoxy silane, γ-glycidyl ether oxygen propyl front three
TMOS, γ-methacryloxypropyl trimethoxy silane, N- β (aminoethyl)-γ-aminopropyltriethoxy two
Methoxy silane, N- β (aminoethyl)-γ-aminopropyltrimethoxysilane, the ethoxy of N- β (aminoethyl)-γ-aminopropyl three
Base silane, γ-aminopropyltriethoxy diethoxy silane, diethylin is for MTES, the second of methyl three
TMOS, phenyl triethoxysilane, double (3- triethoxysilylpropyltetrasulfides) amine, double (3- trimethoxies
Base silylpropyl) amine, double (trimethoxy silicon substrate ethane), double (triethoxy silicon substrate) ethane, double (front threes
Epoxide silyl methyl) ethene, double (3- trimethoxy silicon propyl group) fumarates, double (triethoxy silicon substrates)
Ethene, double [(trimethoxy silicon substrate) ethyl] benzene, double [3- (trimethoxy silicon substrate) propyl group] ethylenediamines, double [(front threes
Epoxide silicon substrate) methyl] benzene, one or more in double (3- (methylamino) propyl group) trimethoxy silanes.
4. the aluminium sheet of anti-solvent corrosion as claimed in claim 1, it is characterised in that described epoxy coating includes epoxy resin and has
The epoxy resin of machine Si modification.
5. the aluminium sheet of anti-solvent corrosion as claimed in claim 4, it is characterised in that the epoxy resin is bisphenol type epoxy
Resin, epoxide number be more than 0.4, the organic-silicon-modified epoxy resin, epoxide number be 0.25-0.3 between.
6. a kind of preparation method of the aluminium sheet of anti-solvent corrosion, comprises the following steps：
1) aluminium sheet is placed in the oxidation of oxygen atmosphere high temperature, obtains alumina layer；
2) silane coupler after hydrolyzing in a solvent is coated on alumina layer surface, obtains silane coupling agent layer；
3) epoxy resin or organic-silicon-modified epoxy resin are mixed with curing agent, is coated on silane coupling agent layer, after solidification,
Epoxy coating is obtained, the aluminium sheet of anti-solvent corrosion is finally obtained.
7. the preparation method of the aluminium sheet of anti-solvent corrosion as claimed in claim 6, it is characterised in that step 1) in, high-temperature temperature
It it is 200-400 DEG C, oxidization time is 2-8h.
8. the preparation method of the aluminium sheet of anti-solvent corrosion as claimed in claim 6, it is characterised in that step 1) include again：By aluminium
Plate surface processes cleaning by acetone, ethanol and deionized water ultrasonic circulation respectively, by the aluminium sheet after cleaning be placed in oxygen atmosphere,
Cooled down in high temperature furnace of the humidity more than 50%, after oxidation and taken out.
9. the preparation method of the aluminium sheet of anti-solvent corrosion as claimed in claim 6, it is characterised in that step 2) in, the silicon
Alkane coupling agent weight percent concentration in a solvent be 0.5~5%, the solvent include ethanol, isopropanol,
Normal propyl alcohol, n-butanol.
10. the preparation method of the aluminium sheet of anti-solvent corrosion as claimed in claim 6, it is characterised in that step 3) in, it is described
Curing agent includes diethylenetriamine, triethylene tetramine, TEPA, trimethylhexamethylenediamine, three
Methyl hexamethylene diamine, hexamethylene diamine modifier, hexamethylene diamine adduct, diamines hexahydrotoluene, aminoethyl croak piperazine,
IPD, diaminourea thiacyclohexane, diaminomethyl cyclohexyl methane, diaminourea cyclohexyl methane,
Phenylenediamine, m-xylene diamine, diaminodiphenyl-methane, diamino diphenyl sulfone, an aminomethylamine, benzene
Dimethylamine tripolymer, benzophenone tetracarboxylic dianhydride, MNA, tetrahydrochysene neighbour's benzene
Dicarboxylic acid anhydride, methyl tetrahydrophthalic anhydride, glutaric anhydride, pyromellitic dianhydride.
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| CN114621655A (en) * | 2022-04-13 | 2022-06-14 | 河南科技大学 | Preparation method of anticorrosive coating, coating and application of crown ether complex as anticorrosive coating additive |
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