CN108676463A - A kind of graphene/rare earth epoxy anti-corrosive primer and preparation method thereof - Google Patents
A kind of graphene/rare earth epoxy anti-corrosive primer and preparation method thereof Download PDFInfo
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- CN108676463A CN108676463A CN201810470545.7A CN201810470545A CN108676463A CN 108676463 A CN108676463 A CN 108676463A CN 201810470545 A CN201810470545 A CN 201810470545A CN 108676463 A CN108676463 A CN 108676463A
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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
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/103—Anti-corrosive paints containing metal dust containing Al
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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
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0856—Iron
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0881—Titanium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0893—Zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
Abstract
Anticorrosive paint field of the present invention specifically provides a kind of graphene/rare earth epoxy anti-corrosive primer, is grouped as by two groups of A, B.Component A includes epoxy resin, anticorrosive packing, graphene, levelling agent, antifoaming agent, dispersant, talcum powder, organobentonite, acetone, silane coupling agent and solvent A；The anticorrosive packing includes rare earth material, composite iron-titanium powder, zinc powder and aluminium powder.B component is configured by epoxy hardener and solvent B.Not only antiseptic property is good for epoxy anti-corrosive primer produced by the present invention, also there is extremely strong adhesive force, the ratio and viscosity of solvent can be adjusted according to demand, it is suitble to brush, a variety of forms of construction work such as roller coating, spraying, apply in engineering, there is fabulous cementation between steel construction, and there is good corrosion protection effect to steel construction.
Description
Technical field：
The invention belongs to anti-corrosion material fields, and in particular to a kind of steel construction anti-corrosive primer.
Background technology：
Corrosion of steel brings huge economic loss and security risk to engineering, is mesh using anticorrosive paint protection steel construction
One of most common method in preceding engineering.Epoxy zinc rich primer be in China's steel structure anti-corrosion paint system most common priming paint it
One, anticorrosion mechanism is：The steel of cathode are protected by the zinc powder of sacrificial anode, in addition, the corrosion product of zinc powder can also hinder
Baffle plate covers erosion of the corrosive medium to steel.Traditional epoxy zinc rich primer zinc content is larger, is on the one hand easy to cause coating
Porous, another aspect viscosity is larger, and form of construction work is relatively simple, and when welding also will produce a large amount of zinc oxide fog.
In order to solve these technical problems, some solutions are also disclosed that in existing literature, are such as contained using reduction zinc powder
Although the method for amount can help to promote the mechanical property of coating and reduce zinc oxide fog, it is affected to antiseptic property.
For example, the Chinese patent literature of Publication No. CN107603420A discloses a kind of graphene corrosion-resistant epoxy paint,
Including component A and B component, which is characterized in that in parts by mass, the component A includes 30-40 parts of epoxy resin, graphite raw material
8-10 parts of 0.5-2 parts, 1-3 parts of dispersant and the first mixed solvent；The B component is including 25-35 parts of the second mixed solvent and admittedly
65-75 parts of agent.The component A further includes 20~30 parts of zinc powder, 15~25 parts of talcum powder, 2~4 parts of aluminium paste, 2-4 parts of titanium dioxide
Cured 2~4 parts with polyamide.In the document using the antiseptic property of graphite and other anticorrosive packings enhancing coating, reduced with this
The dosage of zinc powder, obtains graphene by the way of Graphite and dispersed graphite alkene is in coating, although this method reduce
The cost of graphene, but this method cannot obtain disperseing fabulous graphene.The Graphite Distribution of reunion, can not in coating
The characteristic of graphene, the coating properties that may be reduced instead are played, therefore the salt spray resistance of the coating and adhesive force are inclined
It is low.
For another example, the Chinese patent literature of Publication No. CN106189719A discloses a kind of graphene anticorrosive paint, by A groups
Divide and B component forms, which is characterized in that according to percent by weight：The component A includes 20%-30% epoxy resin, 1%-
3% graphene, 0.5%-2% dispersants, 15%-25% talcum powder, 10%-20% zinc powders, 1%-5% aluminium pastes；The B component
Including 30%-50% cashew nut shell oil phenolic aldehyde amides, 10%-30% polyamide.Zinc is substituted using graphene, aluminium paste etc. in the document
Powder, keeps the antiseptic property of coating while reducing the dosage of zinc powder, and has preferable mechanical property.But it is difficult to well
Dispersed graphite alkene plays nano material characteristic, and its graphene dosage is higher, and coating cost is high, extremely low anticorrosive packing
Ratio may also influence corrosion resistance of coating energy.
In conclusion these methods of existing literature report, although tool excessively high to zinc powder dosage has some improvement, but still
So there are costs it is excessively high, antiseptic property is unstable, adhesive force is not high the problems such as.
Invention content：
To solve the technical issues of reaching high anticorrosive packing by high-content zinc powder of the existing technology, the present invention provides
A kind of graphene/rare earth epoxy anti-corrosive primer (present invention also abbreviation anti-corrosive primer or priming paint), it is intended to promote the property such as anti-corrosion
Energy.
It is a second object of the invention to provide a kind of preparation method of the graphene/rare earth epoxy anti-corrosive primer.
A kind of graphene/rare earth epoxy anti-corrosive primer, including component A and B component：
In component A, including epoxy resin, anticorrosive packing and graphene；B component includes epoxy hardener；
Anticorrosive packing includes the mixture of rare earth material, composite iron-titanium powder, zinc powder and aluminium powder；Wherein, the grain size of each component
Size is：Composite iron-titanium powder >=zinc powder >=aluminium powder ＞ rare earth materials.
The present inventor can help to solve existing skill the study found that the coordinated of each component through the invention
The technical issues of reaching high anticorrosive packing by high-content zinc powder existing for art；Unexpectedly keeping low anticorrosive packing ratio
While, collaboration promoted graphene/rare earth epoxy anti-corrosive primer corrosion resistance, by salt spray resistance be promoted to 2000h with
On, and with excellent mechanical property and construction convenience；Anti-corrosion primer of the present invention, not only good antirust property, also has
There are excellent adhesive force and construction convenience.
The present invention innovatively has found, using the anticorrosive packing for including four kinds of materials and granular gradient grading, cooperation
The set-up mode of the component A and B component of graphene and the present invention, collaboration promote the salt spray resistance of obtained priming paint.
The main innovation point of the present invention is that the coordinated of the anticorrosive packing uses.The study found that anti-
Material variety, pattern, grain size, the mass ratio of rotten filler are controlled, and the anticorrosive packing and other components can be further promoted
Synergy contributes to the properties such as the salt spray resistance for the anti-corrosion primer being further obviously improved in turn.
In the present invention, rare earth material is innovatively added in the anticorrosive packing.Rare earth material and other anticorrosive packings
Be nanoscale or micron order polarity particle, can be scattered in anticorrosive paint, also have between each anticorrosive paint
Certain grain composition gradient, can mutual filling pore, collaboration use of various antiseptic ingredients show far super single anti-corrosion and fill out
The corrosion resistance of material, and coating can be made more closely knit, coating porosity is effectively reduced, coating mechanical property is improved.In addition, its
The extremely strong compound of bond energy can be obtained with resin reaction, improves the corrosion resistance of resin.
Preferably, the rare earth material is simple substance, oxide, complex salt or the rare earth alloy powder of rare earth element.
Preferably, the rare earth element is at least one of lanthanum, cerium, praseodymium, neodymium.
It that is to say, the rare earth material is preferably that the simple substance of at least one of lanthanum, cerium, praseodymium, neodymium element, oxide are compound
Salt or alloyed powder.
Further preferably, the rare earth material is the phosphate of rare earth element.
Most preferably, the rare earth material lanthanum cerium composite phosphate.
Preferably, the rare earth material is micron powder；Further preferably, the grain size of the rare earth material is
1-3μm。
Common material in industry may be used in the composite iron-titanium powder.Preferably, the composite iron-titanium powder is
Using nano modification compound phosphoric acid salt composite iron-titanium powder.Other components collaboration in phosphate radical and anticorrosive packing therein is matched
Close, can show to be formed fine and close oxidation film in steel, can exclusion of water, air and corrosive medium, enhance the corrosion resistance of steel
Energy.
Preferably, the grain size of the composite iron-titanium powder is 300-500 mesh；Preferably 400-500 mesh.
Preferably, the zinc powder is flake zinc powder.Aluminium powder is flakey aluminium powder.Using squamaceous zinc powder and aluminium
The synergy of other compositions in powder and anticorrosive packing is more excellent, contribute to further promoted anti-corrosion primer salt spray resistance,
The performances such as acid and alkali-resistance.
Preferably, it is (0.8-1.2): (0.8-1.2): the 500- of (0.8-1.2) that zinc powder grain size, which is preferably weight part ratio,
The zinc powder mixture of 800 mesh, 800-1000 mesh, 1000-1200 mesh.Certain grain composition ladder is formed between each anticorrosive paint
Degree, can mutual filling pore, keep filler dispersion more preferable, coating is finer and close.
Further preferably, zinc powder grain size is the mixture of 700~800 mesh, 900-1000 mesh, 1100-1200 mesh.
Further preferably, zinc powder grain size is 800 mesh, 1000 mesh, 1200 mesh weight part ratios are 1: 1: 1 different-grain diameter zinc powder
Mixture.
The grain size of aluminium powder is preferably 1000-1500 mesh, preferably 1200-1300 mesh；Further preferably 1200 mesh.
The present invention is innovatively simultaneously using nanoscale graphite alkene, 400-500 mesh composite iron-titanium powder, with certain grain size ladder
Degree zinc powder mixture (mass ratio is (0.8-1.2): (0.8-1.2): the 700-800 mesh of (0.8-1.2), 900-1000 mesh,
Blended zinc powder 1100-1200)), the rare earths material of 1200-1300 mesh aluminium powder and the 1-3 μm of grain size, be thusly-formed anti-corrosion
The grain composition gradient of filler further promotes collaboration antiseptic property, promotes the performances such as the salt spray resistance of anti-corrosion primer.
The present inventor's research also found, except the grain composition by suitable pattern, the zinc powder of grain size and aluminium powder, be filled out to anti-corrosion
The ratio of each component in material is regulated and controled, the performance for the anti-corrosion primer that can be further promoted, and helps to improve its salt tolerant
The performances such as mist performance.
Preferably, the mass ratio of zinc powder, aluminium powder, rare earths material, composite iron-titanium powder is 28~42: 8~12: 1.5~2.4
: 4~6；Further preferably 28~32: 8~9: 1.6~1.8: 4~4.5；Most preferably 17.5: 5: 1: 2.5.Control is in the ratio
Under example, it is matched with the pattern and component of component, the performance for the anti-corrosion primer that can be further promoted helps to improve its resistance to
The performances such as salt fog performance.
The preferred specific surface area of the graphene is more than 15m2The thin graphene or single-layer graphene of/g.It is excellent using this
The graphene of specific surface area, and the anticorrosive packing collaboration of the present invention are selected, in addition to improving antiseptic property, the heat that can also promote priming paint is steady
Qualitative, chemical stability and excellent permeability resistance.
Preferably, the epoxy resin epoxy equivalent is 210-240g/eq.Using the asphalt mixtures modified by epoxy resin of the epoxide equivalent
Fat coordinates innovative point anticorrosive packing of the present invention, can further cooperate with the performance for the epoxy primer that promotion obtains.
Further preferably, the epoxy resin is epoxy resin E44.
Preferably, the epoxy hardener is polyamide.
Preferably, in the component A, also include levelling agent, antifoaming agent, dispersant, talcum powder, organobentonite,
Polar additive, silane coupling agent, solvent a.Preferably, B component also contains solvent b.In component A, these preferred group is added
Point, the performance for the anti-corrosion primer that can be further promoted.
In component A, these preferred ingredients are added, the performance for the anti-corrosion primer that can be further promoted.
Material known in those skilled in the art, preferably silane coupling agent can be used in the silane coupling agent
KH550 or KH560.
The polar additive is preferably at least one of ethyl alcohol, methanol, acetone, propene carbonate；It is further excellent
It is selected as at least one of 95% ethyl alcohol, 95% methanol, 100% acetone or 95% propene carbonate.
Preferably, material known in those skilled in the art can be used in the dispersant, it is affine preferably to contain pigment
The high molecular weight block copolymer of group, such as BYK-163.
Preferably, material known in those skilled in the art can be used in the levelling agent, it is preferably aralkyl modified
Poly- methyl alkyl siloxane, such as BYK-323.
Preferably, material known in those skilled in the art, the preferably poly- silica of brokenly bubble can be used in the antifoaming agent
Alkane solution, such as BYK-066N.
Preferably, the solvent a and solvent b are the mixed solution of dimethylbenzene, methylisobutylketone and n-butanol alone,
The parts by weight of wherein each component are：
45-55 parts of dimethylbenzene
25-35 parts of methylisobutylketone
15-25 parts of n-butanol.
It is described wherein, in component A, the parts by weight of each component are；
B component includes the solvent B of the epoxy hardener and 30-50 parts by weight of 50-70 parts by weight；
The mass ratio (2-7) of the component A and B component: 1.
Preferably, the graphene/rare earth epoxy anti-corrosive primer, 25 ± 1 DEG C -4 glasss of viscosity of painting are 25s-130s.
In the present invention, dosage modified by graphene, that the methods of zinc powder reduction zinc powder is replaced using different antirust fillers,
Being avoided that zinc content is excessively high leads to coated porous, keeps coating finer and close.Reducing the zinc oxide mist generated when welding cutting
While gas, not only ensure the rustless property of coating, and promote the adhesive force between coating and steel structure surface.
The invention also discloses a kind of preparation methods of graphene/rare earth epoxy anti-corrosive primer, including following step
Suddenly：
Step 1：The desired amount of organobentonite is added in solvent a, polar additive is added after stirring, stirs to obtain dispersion
Liquid A；
Step 2：Silane coupling agent, dispersant are added in graphene, is added in the dispersion liquid A that step 1 obtains after stirring,
Epoxy resin is added, after stirring, ultrasonic disperse obtains dispersion liquid B；
Step 3：Antifoaming agent, levelling agent are added in dispersion liquid B prepared by step 2, is sufficiently stirred to obtain mixed liquor；
Step 4：By zinc powder, aluminium powder, rare earth powder, the mixed liquor that step 3 obtains is added in talcum powder mixing after being dispersed with stirring
In, modified epoxy anti-corrosive primer component A is obtained after being sufficiently stirred；
Step 5：Epoxy hardener is mixed with solvent b, obtains component B；
Step 6：The component A is uniformly mixed with B component and obtains the epoxy anti-corrosive primer.
By the preparation method described in the invention, anti-corrosion primer of the present invention can easily be made.
A kind of preferred preparation method of the present invention, includes the following steps：
Step 1：The desired amount of organobentonite is added in solvent a, polar additive is added after stirring, stirs 10 points
Clock.
Step 2：Silane coupling agent, dispersant are added in graphene, the dispersion that step 1 obtains is added in stirring after ten minutes
In liquid, appropriate epoxy resin and solvent are added, stirred 10 minutes, when ultrasonic disperse 12.
Step 3：Antifoaming agent, levelling agent are added in dispersion liquid prepared by step 2, is sufficiently stirred.
Step 4：By zinc powder, aluminium powder, rare earth powder, talcum powder mixing, high-speed stirred is added step 3 after disperseing 30 minutes and obtains
Mixed liquor in, appropriate solvent adjustment viscosity is added, modified epoxy anti-corrosive primer component A is obtained after being sufficiently stirred.
Step 5：Being sufficiently stirred after polyamide is mixed with solvent b aforementioned proportions, which makes it fully dissolve, obtains modification
Epoxy anti-corrosive primer B component.
Step 6：The component A is uniformly mixed with B component and obtains the epoxy anti-corrosive primer.
Advantageous effect
1, priming paint of the present invention is replaced by the modified and antirust filler using different-grain diameter grading of graphene
The methods of zinc powder, it is possible to reduce the dosage of zinc powder, being avoided that zinc content is excessively high leads to coated porous；Pass through the priming paint
It uses, primer coating can be made finer and close；Corrosion Protection is promoted, salt spray resistance is improved.
2, the strong adhesive force between steel, remote supersteel structure coating adhesive force industry standard required value.
3, the ratio of solvent can be adjusted according to demand, and viscosity can adjust in (applying -4 glasss 25 DEG C) 25s-130s, be suitble to
It brushes, a variety of forms of construction work such as roller coating, spraying.
4, zinc powder dosage is few, reduces the zinc oxide fog generated when welding and cutting, also avoids zinc content is excessively high from leading
Coated porous, the addition of rare earth powder is caused to further reduced porosity, keep coating more preferably fine and close.
Description of the drawings
Fig. 1 is embodiment 1 through the neutral salt spray test of resistance to 2500h figure；
Fig. 2 is 2 neutral salt spray test of resistance to 2500h lab diagram of embodiment；
Fig. 3 is 2 neutral salt spray test of resistance to 2500h lab diagram of embodiment；
Fig. 4 is 10 neutral salt spray test of resistance to 1000h figure of comparative example；
Fig. 5 is graphene modified coating scanning electron microscope (SEM) photograph prepared by embodiment 1；
Fig. 6 is the graphene modified coating scanning electron microscope (SEM) photograph that graphene is directly added into coating preparation；
Specific implementation method
Following embodiment and comparative example, unless specified or limited otherwise, the polyamide, which is the red precious resin in Zhenjiang, to be had
The polyamide 6 50 that limit company provides.
Following embodiment and comparative example, unless specified or limited otherwise, the lanthanum cerium composite phosphate are bought from Scott
Company of Co., Ltd is learned to provide；
Following embodiment and comparative example, unless specified or limited otherwise, the composite iron-titanium powder are bought from composite iron-titanium powder ten thousand
It is provided up to company of scientific and technological (Wuxi) Co., Ltd；
Embodiment 1
100gA component coating is prepared, 12g solvents is taken (to be matched with 1: 2: 1 ratio by methylisobutylketone, dimethylbenzene and n-butanol
At), 2.39g organobentonites are added, stir 10 minutes, 0.72g acetone are added as polar additive, stirring obtains after ten minutes
To dispersion liquid.1.20g Silane coupling agent KH550s, 1.79g dispersants (BYK-163) are added in 0.24g graphene powders, stirs
It mixes in the dispersion liquid being added after ten minutes, and 17.94g epoxy resin E44 is added (sinopec Ba Ling petrochemical industry is public, and epoxy is worked as
Measure 210-240), stir 10 minutes simultaneously ultrasonic disperse 12 hours.Dispersion after the completion of be added 1.20g antifoaming agent (BYK-066N),
0.24g levelling agents (BYK-323), 0.12g talcum powder stir 10 minutes.By 13.96g flake zinc powders (800 mesh), 13.96g
Flake zinc powder (1000 mesh), 13.96g flake zinc powders (1200 mesh), 11.96g flakeys aluminium powder (1200 mesh), 2.39g are dilute
Native powder (2 μm of lanthanum cerium composite phosphate grain size), 5.98g composite iron-titanium powders (500 mesh), after high-speed stirred is disperseed 30 minutes after mixing
It is added in obtained dispersion liquid, modified epoxy anti-corrosive primer component A is obtained after being sufficiently stirred.
100gB component coating is prepared, enters 35g solvents (by methylisobutylketone, dimethylbenzene and positive fourth in 65g polyamides
Alcohol is made into 50: 25: 25 ratios), being sufficiently stirred, which makes it fully dissolve, obtains modified epoxy anti-corrosive primer B component.
A, B component are mixed with 4: 1 ratio and obtain coating of the present invention.
Embodiment 2
100gA component coating is prepared, 18g solvents is taken (to be matched with 1: 2: 1 ratio by methylisobutylketone, dimethylbenzene and n-butanol
At), 1.8g organobentonites are added, stir 10 minutes, 0.54g acetone are added as polar additive, stirring obtains after ten minutes
To dispersion liquid.0.9g Silane coupling agent KH550s, 1.35g dispersants (BYK-163), stirring are added in 0.18g graphene powders
In the dispersion liquid being added after ten minutes, and 13.5 epoxy resin E44 (sinopec Ba Ling petrochemical industry public affairs, epoxide equivalent is added
210-240) with 15.75g solvents, 10 minutes simultaneously ultrasonic disperse 12 hours are stirred.0.90g antifoaming agent is added after the completion of dispersion
(BYK-066N), 0.18g levelling agents (BYK-323), 0.09g talcum powder stir 10 minutes.By 10.50g flake zinc powders (800
Mesh), 10.50g flake zinc powders (1000 mesh), 10.50g flake zinc powders (1200 mesh), 9.00g flakeys aluminium powder (1200
Mesh), 1.80g rare earths powder (lanthanum cerium composite phosphate (2 μm of grain size)), 4.50g composite iron-titanium powders (500 mesh) mixing after high-speed stirred
In the dispersion liquid that dispersion is added after 30 minutes, modified epoxy anti-corrosive primer component A is obtained after being sufficiently stirred.
100gB component coating is prepared, enters 40g solvents (by methylisobutylketone, dimethylbenzene and positive fourth in 60g polyamides
Alcohol is made into 1: 2: 1 ratio), being sufficiently stirred, which makes it fully dissolve, obtains modified epoxy anti-corrosive primer B component.
A, B component are mixed with 4.5: 1 ratio and obtain coating of the present invention.
Embodiment 3
100gA component coating is prepared, takes 16.2g solvents (by methylisobutylketone, dimethylbenzene and n-butanol with 1: 2: 1 ratio
It is made into), 1.62g organobentonites are added, stir 10 minutes, 0.49g acetone are added as polar additive, stirring is after ten minutes
Obtain dispersion liquid.0.81g Silane coupling agent KH550s, 1.21g dispersants (BYK-163) are added in 0.16g graphene powders,
It stirs in the dispersion liquid being added after ten minutes, and 12.14g epoxy resin E44 (sinopec Ba Ling petrochemical industry public affairs, epoxy is added
Equivalent 210-240) and 24.25g solvents, stir 10 minutes simultaneously ultrasonic disperse 12 hours.0.81g antifoaming agent is added after the completion of dispersion
(BYK-066N), 0.16g levelling agents (BYK-323), 0.08g talcum powder stir 10 minutes.By 9.44g flake zinc powders (800
Mesh), 9.44g flake zinc powders (1000 mesh), 9.44g flake zinc powders (1200 mesh), 8.09g flakeys aluminium powder (1200 mesh),
1.62g rare earths powder (lanthanum cerium composite phosphate (2 μm of grain size)), high-speed stirred is disperseed after 4.05g composite iron-titanium powders (500 mesh) mixing
In the dispersion liquid being added after 30 minutes, modified epoxy anti-corrosive primer component A is obtained after being sufficiently stirred.
100gB component coating is prepared, enters 45g solvents (by methylisobutylketone, dimethylbenzene and positive fourth in 55g polyamides
Alcohol is made into 1: 2: 1 ratio), being sufficiently stirred, which makes it fully dissolve, obtains modified epoxy anti-corrosive primer B component.
A, B component are mixed with 5: 1 ratio and obtain coating of the present invention.
Comparative example 1
It is compared with embodiment 2, difference essentially consists in, and the anticorrosive packing used is squamaceous single zinc powder, concrete operations
Scheme is as follows：
100gA component coating is prepared, 18g solvents is taken (to be matched with 1: 2: 1 ratio by methylisobutylketone, dimethylbenzene and n-butanol
At), 1.8g organobentonites are added, stir 10 minutes, 0.54g acetone are added as polar additive, stirring obtains after ten minutes
To dispersion liquid.0.9g Silane coupling agent KH550s, 1.35g dispersants (BYK-163), stirring are added in 0.18g graphene powders
In the dispersion liquid being added after ten minutes, and 13.5 epoxy resin E44 (sinopec Ba Ling petrochemical industry public affairs, epoxide equivalent is added
210-240) with 15.75g solvents, 10 minutes simultaneously ultrasonic disperse 12 hours are stirred.0.90g antifoaming agent is added after the completion of dispersion
(BYK-066N), 0.18g levelling agents (BYK-323), 0.09g talcum powder stir 10 minutes.By 15.60g flake zinc powders (800
Mesh), 15.60g flake zinc powders (1000 mesh), 15.60g flake zinc powders (1200 mesh) be added under high-speed stirred state and obtain
Dispersion liquid in, modified epoxy anti-corrosive primer component A is obtained after being sufficiently stirred.
100gB component coating is prepared, enters 40g solvents (by methylisobutylketone, dimethylbenzene and positive fourth in 60g polyamides
Alcohol is made into 1: 2: 1 ratio), being sufficiently stirred, which makes it fully dissolve, obtains modified epoxy anti-corrosive primer B component.
A, B component are mixed with 4.5: 1 ratio and obtain the comparative example 1.
Comparative example 2
It is compared with embodiment 2, difference essentially consists in, and the zinc powder used is 300 mesh spherical zinc powder, and concrete operations scheme is such as
Under：
100gA component coating is prepared, 18g solvents is taken (to be matched with 1: 2: 1 ratio by methylisobutylketone, dimethylbenzene and n-butanol
At), 1.8g organobentonites are added, stir 10 minutes, 0.54g acetone are added as polar additive, stirring obtains after ten minutes
To dispersion liquid.0.9g Silane coupling agent KH550s, 1.35g dispersants (BYK-163), stirring are added in 0.18g graphene powders
In the dispersion liquid being added after ten minutes, and 13.5 epoxy resin E44 (sinopec Ba Ling petrochemical industry public affairs, epoxide equivalent is added
210-240) with 15.75g solvents, 10 minutes simultaneously ultrasonic disperse 12 hours are stirred.0.90g antifoaming agent is added after the completion of dispersion
(BYK-066N), 0.18g levelling agents (BYK-323), 0.09g talcum powder stir 10 minutes.By 31.50g zinc powders (spherical 300
Mesh), 9.00g flakeys aluminium powder (1200 mesh), 1.80g rare earths powder (lanthanum cerium composite phosphate (2 μm of grain size)), 4.50g compound irons
In the dispersion liquid that high-speed stirred is added after disperseing 30 minutes after titanium valve (500 mesh) mixing, modification is obtained after being sufficiently stirred
Epoxy anti-corrosive primer component A.
100gB component coating is prepared, enters 40g solvents (by methylisobutylketone, dimethylbenzene and positive fourth in 60g polyamides
Alcohol is made into 1: 2: 1 ratio), being sufficiently stirred, which makes it fully dissolve, obtains modified epoxy anti-corrosive primer B component.
A, B component are mixed with 4.5: 1 ratio and obtain the comparative example 2.
Comparative example 3
It is compared with embodiment 2, difference essentially consists in, and does not carry out graphene modification (being not added with graphene) to coating：
100gA component coating is prepared, 18g solvents is taken (to be matched with 1: 2: 1 ratio by methylisobutylketone, dimethylbenzene and n-butanol
At), 1.8g organobentonites are added, stir 10 minutes, 0.54g acetone are added as polar additive, stirring obtains after ten minutes
To dispersion liquid.0.9g Silane coupling agent KH550s, 1.35g dispersants (BYK-163) are added in dispersion liquid, stirring is after ten minutes
13.5 epoxy resin E44 (sinopec Ba Ling petrochemical industry is public, epoxide equivalent 210-240) and 15.75g solvents is added.Then it is added
0.90g antifoaming agent (BYK-066N), 0.18g levelling agents (BYK-323), 0.09g talcum powder stir 10 minutes.By 10.50g squamas
Zinc flake (800 mesh), 10.50g flake zinc powders (1000 mesh), 10.50g flake zinc powders (1200 mesh), 9.00g flakeys
Aluminium powder (1200 mesh), 1.80g rare earths powder (lanthanum cerium composite phosphate (2 μm of grain size)), 4.50g composite iron-titanium powders (500 mesh) mixing
In the dispersion liquid that high-speed stirred is added after disperseing 30 minutes afterwards, modified epoxy anti-corrosive primer A groups are obtained after being sufficiently stirred
Point.
100gB component coating is prepared, enters 40g solvents (by methylisobutylketone, dimethylbenzene and positive fourth in 60g polyamides
Alcohol is made into 1: 2: 1 ratio), being sufficiently stirred, which makes it fully dissolve, obtains modified epoxy anti-corrosive primer B component.
A, B component are mixed with 4.5: 1 ratio and obtain the comparative example 3.
Comparative example 4：
It is compared with embodiment 2, difference essentially consists in, and the aluminium powder used is 500 mesh spherical zinc powder, and concrete operations scheme is such as
Under：
100gA component coating is prepared, 18g solvents is taken (to be matched with 1: 2: 1 ratio by methylisobutylketone, dimethylbenzene and n-butanol
At), 1.8g organobentonites are added, stir 10 minutes, 0.54g acetone are added as polar additive, stirring obtains after ten minutes
To dispersion liquid.0.9g Silane coupling agent KH550s, 1.35g dispersants (BYK-163), stirring are added in 0.18g graphene powders
In the dispersion liquid being added after ten minutes, and 13.5 epoxy resin E44 (sinopec Ba Ling petrochemical industry public affairs, epoxide equivalent is added
210-240) with 15.75g solvents, 10 minutes simultaneously ultrasonic disperse 12 hours are stirred.0.90g antifoaming agent is added after the completion of dispersion
(BYK-066N), 0.18g levelling agents (BYK-323), 0.09g talcum powder stir 10 minutes.By 31.50g10.50g flake zincs
The spherical aluminium powder of powder (800 mesh), 10.50g flake zinc powders (1000 mesh), 10.50g flake zinc powders (1200 mesh), 9.00g (500
Mesh), 1.80g rare earths powder (lanthanum cerium composite phosphate (2 μm of grain size)), 4.50g composite iron-titanium powders (500 mesh) mixing after high-speed stirred
In the dispersion liquid that dispersion is added after 30 minutes, modified epoxy anti-corrosive primer component A is obtained after being sufficiently stirred.
100gB component coating is prepared, enters 40g solvents (by methylisobutylketone, dimethylbenzene and positive fourth in 60g polyamides
Alcohol is made into 1: 2: 1 ratio), being sufficiently stirred, which makes it fully dissolve, obtains modified epoxy anti-corrosive primer B component.
A, B component are mixed with 4.5: 1 ratio and obtain the comparative example 4.
Comparative example 5：
It is compared with embodiment 2, difference essentially consists in, and rare earth powder is replaced using zinc powder, and concrete operations scheme is as follows：
100gA component coating is prepared, 18g solvents is taken (to be matched with 1: 2: 1 ratio by methylisobutylketone, dimethylbenzene and n-butanol
At), 1.8g organobentonites are added, stir 10 minutes, 0.54g acetone are added as polar additive, stirring obtains after ten minutes
To dispersion liquid.0.9g Silane coupling agent KH550s, 1.35g dispersants (BYK-163), stirring are added in 0.18g graphene powders
In the dispersion liquid being added after ten minutes, and 13.5 epoxy resin E44 (sinopec Ba Ling petrochemical industry public affairs, epoxide equivalent is added
210-240) with 15.75g solvents, 10 minutes simultaneously ultrasonic disperse 12 hours are stirred.0.90g antifoaming agent is added after the completion of dispersion
(BYK-066N), 0.18g levelling agents (BYK-323), 0.09g talcum powder stir 10 minutes.By 11.10g flake zinc powders (800
Mesh), 11.10g flake zinc powders (1000 mesh), 11.10g flake zinc powders (1200 mesh), 9.00g flakeys aluminium powder (1200
Mesh), after high-speed stirred is disperseed 30 minutes after 4.50g composite iron-titanium powders (500 mesh) mixing in the dispersion liquid that is added, fully stir
Modified epoxy anti-corrosive primer component A is obtained after mixing.
100gB component coating is prepared, enters 40g solvents (by methylisobutylketone, dimethylbenzene and positive fourth in 60g polyamides
Alcohol is made into 1: 2: 1 ratio), being sufficiently stirred, which makes it fully dissolve, obtains modified epoxy anti-corrosive primer B component.
A, B component are mixed with 4.5: 1 ratio and obtain the comparative example 5.
Comparative example 6
It is compared with embodiment 2, difference essentially consists in, and composite iron-titanium powder is substituted using zinc powder, and concrete operations scheme is as follows：
100gA component coating is prepared, 18g solvents is taken (to be matched with 1: 2: 1 ratio by methylisobutylketone, dimethylbenzene and n-butanol
At), 1.8g organobentonites are added, stir 10 minutes, 0.54g acetone are added as polar additive, stirring obtains after ten minutes
To dispersion liquid.0.9g Silane coupling agent KH550s, 1.35g dispersants (BYK-163), stirring are added in 0.18g graphene powders
In the dispersion liquid being added after ten minutes, and 13.5 epoxy resin E44 (sinopec Ba Ling petrochemical industry public affairs, epoxide equivalent is added
210-240) with 15.75g solvents, 10 minutes simultaneously ultrasonic disperse 12 hours are stirred.0.90g antifoaming agent is added after the completion of dispersion
(BYK-066N), 0.18g levelling agents (BYK-323), 0.09g talcum powder stir 10 minutes.By 12.00g flake zinc powders (800
Mesh), 12.00g flake zinc powders (1000 mesh), 12.00g flake zinc powders (1200 mesh), 9.00g flakeys aluminium powder (1200
Mesh), high-speed stirred is added after disperseing 30 minutes and obtains after 1.80g rare earths powder (lanthanum cerium composite phosphate (2 μm of grain size)) mixing
In dispersion liquid, modified epoxy anti-corrosive primer component A is obtained after being sufficiently stirred.
100gB component coating is prepared, enters 40g solvents (by methylisobutylketone, dimethylbenzene and positive fourth in 60g polyamides
Alcohol is made into 1: 2: 1 ratio), being sufficiently stirred, which makes it fully dissolve, obtains modified epoxy anti-corrosive primer B component.
A, B component are mixed with 4.5: 1 ratio and obtain the comparative example 6.
Comparative example 7
It is compared with embodiment 2, difference essentially consists in, and aluminium powder is substituted using zinc powder, and concrete operations scheme is as follows：
100gA component coating is prepared, 18g solvents is taken (to be matched with 1: 2: 1 ratio by methylisobutylketone, dimethylbenzene and n-butanol
At), 1.8g organobentonites are added, stir 10 minutes, 0.54g acetone are added as polar additive, stirring obtains after ten minutes
To dispersion liquid.0.9g Silane coupling agent KH550s, 1.35g dispersants (BYK-163), stirring are added in 0.18g graphene powders
In the dispersion liquid being added after ten minutes, and 13.5 epoxy resin E44 (sinopec Ba Ling petrochemical industry public affairs, epoxide equivalent is added
210-240) with 15.75g solvents, 10 minutes simultaneously ultrasonic disperse 12 hours are stirred.0.90g antifoaming agent is added after the completion of dispersion
(BYK-066N), 0.18g levelling agents (BYK-323), 0.09g talcum powder stir 10 minutes.By 13.50g flake zinc powders (800
Mesh), 13.50g flake zinc powders (1000 mesh), 13.50g flake zinc powders (1200 mesh), 1.80g rare earths powder (the compound phosphorus of lanthanum cerium
Hydrochlorate (2 μm of grain size)), the dispersion that high-speed stirred is added after disperseing 30 minutes after 4.50g composite iron-titanium powders (500 mesh) mixing
In liquid, modified epoxy anti-corrosive primer component A is obtained after being sufficiently stirred.
100gB component coating is prepared, enters 40g solvents (by methylisobutylketone, dimethylbenzene and positive fourth in 60g polyamides
Alcohol is made into 1: 2: 1 ratio), being sufficiently stirred, which makes it fully dissolve, obtains modified epoxy anti-corrosive primer B component.
A, B component are mixed with 4.5: 1 ratio and obtain the comparative example 7.
Comparative example 8：
It is compared with embodiment 2, difference essentially consists in, and anticorrosive packing is only with aluminium powder and zinc powder, composite iron-titanium powder and rare earth
Powder is substituted using zinc powder, and concrete operations scheme is as follows：
100gA component coating is prepared, 18g solvents is taken (to be matched with 1: 2: 1 ratio by methylisobutylketone, dimethylbenzene and n-butanol
At), 1.8g organobentonites are added, stir 10 minutes, 0.54g acetone are added as polar additive, stirring obtains after ten minutes
To dispersion liquid.0.9g Silane coupling agent KH550s, 1.35g dispersants (BYK-163), stirring are added in 0.18g graphene powders
In the dispersion liquid being added after ten minutes, and 13.5 epoxy resin E44 (sinopec Ba Ling petrochemical industry public affairs, epoxide equivalent is added
210-240) with 15.75g solvents, 10 minutes simultaneously ultrasonic disperse 12 hours are stirred.0.90g antifoaming agent is added after the completion of dispersion
(BYK-066N), 0.18g levelling agents (BYK-323), 0.09g talcum powder stir 10 minutes.By 12.60g flake zinc powders (800
Mesh), 12.60g flake zinc powders (1000 mesh), 12.60g flake zinc powders (1200 mesh), 9.00g flakeys aluminium powder (1200
Mesh), after high-speed stirred is disperseed 30 minutes after mixing in the dispersion liquid that is added, modified epoxy antirust is obtained after being sufficiently stirred
Priming paint component A.
100gB component coating is prepared, enters 40g solvents (by methylisobutylketone, dimethylbenzene and positive fourth in 60g polyamides
Alcohol is made into 1: 2: 1 ratio), being sufficiently stirred, which makes it fully dissolve, obtains modified epoxy anti-corrosive primer B component.
A, B component are mixed with 4.5: 1 ratio and obtain the comparative example 8.
Comparative example 9
It is compared with embodiment 2, difference essentially consists in, and the ratio of four kinds of anticorrosive packings is adjusted to rare earth powder: composite iron-titanium
Powder: zinc powder: for aluminium powder with 3: 3: 17: 3, concrete operations scheme is as follows：
100gA component coating is prepared, 18g solvents is taken (to be matched with 1: 2: 1 ratio by methylisobutylketone, dimethylbenzene and n-butanol
At), 1.8g organobentonites are added, stir 10 minutes, 0.54g acetone are added as polar additive, stirring obtains after ten minutes
To dispersion liquid.0.9g Silane coupling agent KH550s, 1.35g dispersants (BYK-163), stirring are added in 0.18g graphene powders
In the dispersion liquid being added after ten minutes, and 13.5 epoxy resin E44 (sinopec Ba Ling petrochemical industry public affairs, epoxide equivalent is added
210-240) with 15.75g solvents, 10 minutes simultaneously ultrasonic disperse 12 hours are stirred.0.90g antifoaming agent is added after the completion of dispersion
(BYK-066N), 0.18g levelling agents (BYK-323), 0.09g talcum powder stir 10 minutes.By 10.20g flake zinc powders (800
Mesh), 10.20g flake zinc powders (1000 mesh), 10.20g flake zinc powders (1200 mesh), 5.4g flakeys aluminium powder (1200 mesh),
5.40g rare earths powder (lanthanum cerium composite phosphate (2 μm of grain size)), high-speed stirred is disperseed after 5.40g composite iron-titanium powders (500 mesh) mixing
In the dispersion liquid being added after 30 minutes, modified epoxy anti-corrosive primer component A is obtained after being sufficiently stirred.
100gB component coating is prepared, enters 40g solvents (by methylisobutylketone, dimethylbenzene and positive fourth in 60g polyamides
Alcohol is made into 1: 2: 1 ratio), being sufficiently stirred, which makes it fully dissolve, obtains modified epoxy anti-corrosive primer B component.
A, B component are mixed with 4.5: 1 ratio and obtain the comparative example 9.
Comparative example 10：Butterfly with different colors board epoxy zinc rich primer.
1 embodiment 1-3 of table, comparative example 1-10 priming paint test results：
1 priming paint test result of table
As it can be seen from table 1 the formula of the present invention has fabulous adhesive force；Flake zinc powder of the present invention,
Flakey aluminium powder and suitable grain size can enhance the anti-corrosion capability of priming paint, comparative example 2,4 do not use flake zinc powder or
There is different degrees of decline in aluminium powder, resistance to neutral salt spray time；Anticorrosive packing ratio be rare earth powder, composite iron-titanium powder,
When zinc powder, aluminium powder 1: 2.5: 17.5: 5, the salt spray resistance of priming paint greatly enhances, and the anticorrosive packing of comparative example 9 uses rare earth powder:
Composite iron-titanium powder: zinc powder: aluminium powder is added with 3: 3: 17: 3 ratios, resistance to neutral salt spray time reduce 500h, comparative example 5,6,7,8
There is different degrees of reduction in the resistance to neutral salt spray time after lacking one or several kinds of fillers.The modification of graphene keeps the present invention anti-
Rust priming paint is further increased in mechanical property and anti-corrosion ability, and comparative example 3 is modified without graphene, resistance to relative to embodiment 2
Neutral salt spray practice reduces 300h.
Such as Fig. 1~4 it is found that embodiment 1,2,3, does not occur corrosion, blistering, cracking, stripping through 2500 resistance to neutral salt spray tests
Phenomenon is fallen, and comparative example 10 occurs as soon as blistering and slight corrosion in 1000h.
For Fig. 5 and Fig. 6 it is found that Fig. 5 is graphene modified coating scanning electron microscope (SEM) photograph prepared by the application, Fig. 6 is using direct
Graphene modified coating prepared by graphene mode is added.The graphene of graphene modified epoxy coating distribution in Fig. 5
Reunion thickness is thinner compared in Fig. 6, and lamella superposition less illustrates that the dispersion liquid and preparation method thereof effectively reduces the reunion of graphene, schemes
There is more fold on surface in 6, illustrates to be likely to form new be bonded or functional group between epoxy resin and graphene.This is specially
Graphene modified coating prepared by sharp method can make full use of the microstructure sizes characteristic of graphene, and it is corrosion-resistant to improve coating
Performance and mechanical property.
Claims (10)
1. a kind of graphene/rare earth epoxy anti-corrosive primer, which is characterized in that including component A and B component：
In component A, including epoxy resin, anticorrosive packing and graphene；B component includes epoxy hardener；
Anticorrosive packing includes the mixture of rare earth material, composite iron-titanium powder, zinc powder and aluminium powder；Wherein, the particle size of each component
For：Composite iron-titanium powder >=zinc powder >=aluminium powder ＞ rare earth materials.
2. graphene as described in claim 1/rare earth epoxy anti-corrosive primer, which is characterized in that the rare earth material is dilute
Simple substance, oxide, complex salt or the rare earth alloy powder of earth elements；
Rare earth element is preferably at least one of lanthanum, cerium, praseodymium, neodymium；
Further preferably, the rare earth material is lanthanum cerium composite phosphate；
The composite iron-titanium powder is nano modification composite iron-titanium powder, preferably compound phosphoric acid salt composite iron-titanium powder；
The zinc powder is flake zinc powder；
Aluminium powder is flakey aluminium powder.
3. graphene as claimed in claim 2/rare earth epoxy anti-corrosive primer, which is characterized in that it is characterized in that,
The grain size of rare earth material is 1-3 μm；The grain size of composite iron-titanium powder is 300-500 mesh；The grain size of zinc powder is 500-1200 mesh；
The grain size of aluminium powder is 1000-1500 mesh；
The zinc powder is that weight part ratio is (0.8-1.2): (0.8-1.2): 500-800 mesh, the 800-1000 of (0.8-1.2)
Mesh, 1000-1200 mesh zinc powder mixtures；700~800 mesh, 900-1000 mesh, the 1100- of the further preferably described mass ratio
The mixture of 1200 mesh.
4. such as claims 1 to 3 any one of them graphene/rare earth epoxy anti-corrosive primer, which is characterized in that anticorrosive packing
In, zinc powder, aluminium powder, rare earths material, composite iron-titanium powder mass ratio be 28~42: 8~12: 1.5~2.4: 4~6；It is further excellent
It is selected as 28~32: 8~9: 1.6~1.8: 4~4.5；Most preferably 17.5: 5: 1: 2.5.
5. graphene as described in claim 1/rare earth epoxy anti-corrosive primer, which is characterized in that the graphene preferably compares
Surface area is more than 15m2The thin graphene or single-layer graphene of/g.
6. such as Claims 1 to 5 any one of them graphene/rare earth epoxy anti-corrosive primer, which is characterized in that the A groups
Also include levelling agent, antifoaming agent, dispersant, talcum powder, organobentonite, polar additive, silane coupling agent, solvent in point
a；
Wherein, the parts by weight of component A each component are：
The B component also includes solvent b, wherein B component includes the epoxy hardener and 30-50 parts by weight of 50-70 parts by weight
Solvent b；
The mass ratio (2-7) of the component A and B component: 1.
7. graphene as claimed in claim 6/rare earth epoxy anti-corrosive primer, which is characterized in that the silane coupling agent is
Silane coupling agent KH550 or KH560；
The polar additive is at least one of ethyl alcohol, methanol, acetone, propene carbonate；
The dispersant is the high molecular weight block copolymer of the affinity groups containing pigment；
The levelling agent is aralkyl modified poly- methyl alkyl siloxane；
The antifoaming agent is brokenly bubble polysiloxane solution；
The epoxy resin is that epoxide equivalent is 210-240g/eq；
The epoxy hardener is polyamide.
8. graphene as claimed in claim 6/rare earth epoxy anti-corrosive primer, which is characterized in that
The solvent a and solvent b is the mixed solution of dimethylbenzene, methylisobutylketone and n-butanol, wherein each component alone
Parts by weight are：
45-55 parts of dimethylbenzene
25-35 parts of methylisobutylketone
15-25 parts of n-butanol；
Preferably, -4 glasss of viscosity of painting of the graphene/25 ± 1 DEG C of rare earth epoxy anti-corrosive primer are 25s-130s.
9. a kind of preparation method of claim 1~8 any one of them graphene/rare earth epoxy anti-corrosive primer, feature exist
In including the following steps：
Step 1：The desired amount of organobentonite is added in solvent a, polar additive is added after stirring, stirs to obtain dispersion liquid A；
Step 2：Silane coupling agent, dispersant are added in graphene, is added in the dispersion liquid A that step 1 obtains after stirring, then adds
Enter epoxy resin, after stirring, ultrasonic disperse obtains dispersion liquid B；
Step 3：Antifoaming agent, levelling agent are added in dispersion liquid B prepared by step 2, is sufficiently stirred to obtain mixed liquor；
Step 4：By zinc powder, aluminium powder, rare earth powder, talcum powder mixing is added in the mixed liquor that step 3 obtains after being dispersed with stirring, fills
Modified epoxy anti-corrosive primer component A is obtained after dividing stirring；
Step 5：Epoxy hardener is mixed with solvent b, obtains component B；
Step 6：The component A is uniformly mixed with B component and obtains the epoxy anti-corrosive primer.
10. a kind of application of claim 1~8 any one of them graphene/rare earth epoxy anti-corrosive primer, which is characterized in that
Anti-corrosion for Steel material.
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| CN113563595A (en) * | 2021-07-14 | 2021-10-29 | 南方电网科学研究院有限责任公司 | Bentonite grafting agent and preparation method and application thereof |
| CN113563595B (en) * | 2021-07-14 | 2023-06-06 | 南方电网科学研究院有限责任公司 | Bentonite grafting agent and preparation method and application thereof |
| CN115093735A (en) * | 2022-07-21 | 2022-09-23 | 安徽尚德轨道设备制造有限公司 | Cold spray multi-element alloy anticorrosive material and preparation method thereof |
| CN115926586A (en) * | 2023-02-01 | 2023-04-07 | 天津大学 | Epoxy heat-conducting anticorrosive paint and preparation method thereof |
| CN115926586B (en) * | 2023-02-01 | 2023-08-18 | 天津大学 | Epoxy heat-conducting anticorrosive paint and preparation method thereof |
| CN115975481A (en) * | 2023-03-21 | 2023-04-18 | 暨南大学 | Epoxy resin anticorrosive paint and preparation method thereof |
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