CN109608979A - A kind of graphene oxide/graphene nano water-base epoxy composite coating and preparation method thereof - Google Patents
A kind of graphene oxide/graphene nano water-base epoxy composite coating and preparation method thereof Download PDFInfo
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- CN109608979A CN109608979A CN201811204324.1A CN201811204324A CN109608979A CN 109608979 A CN109608979 A CN 109608979A CN 201811204324 A CN201811204324 A CN 201811204324A CN 109608979 A CN109608979 A CN 109608979A
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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
- 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
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- C09D7/61—Additives non-macromolecular inorganic
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Abstract
The invention discloses a kind of graphene oxide/graphene nano water-base epoxy composite coatings, and preparation method includes the following steps: (1) preparing graphene oxide/graphene aqueous dispersions；(2) aqueous epoxy resins slurry is prepared；(3) graphene oxide/graphene nano water-base epoxy composite coating is prepared；Graphene oxide prepared by the present invention/graphene aqueous dispersions excellent stability, standing have not yet to see graphene solution coagulation for 24 hours, and this method has that easy to operate, low energy consumption, and equipment requirement is low, advantages of environment protection；It is inorganic modified that the present invention uses the derivative graphene oxide of graphene to carry out it, and two kinds of material structures are almost the same, and compatibility is fabulous；And the graphene and graphene oxide of two-dimensional slice structure all have the performance of barrier corrosive medium well, so the coating corrosion resistance prepared is much better than traditional water paint.
Description
Technical field
The invention belongs to coating preparation fields, and in particular to a kind of graphene oxide/graphene nano water-base epoxy is compound
Coating and preparation method thereof.
Background technique
It so far, is anticorrosive metal most one of universal, most efficient method using various organic coatings, however,
The toxic solvent such as diacetone alcohol, dimethylbenzene and diphenol propane methanol resin volatilized in production and work progress are to human health
It is highly unwanted with environment；Accordingly, it is considered to arrive the low emission and pollution pressure of volatile compound, traditional organic coating
It will be inevitably replaced water paint.But it is unarguable the fact is that, water paint corrosion resistance can not show a candle to certain
A little organic solvent coating；So being to solve its corrosion resistance in severe corrosive environment using the premise of water paint；It grinds
Study carefully and show that graphene has typical two-dimensional sheet structure, to spies such as water, oxygen, corrosive ion barrier properties with higher
Point is the key that improve corrosion resistance coating, is the candidate material of anticorrosion field great potential；But not due to graphene
Permeability and strong-hydrophobicity limit it in the extensive use in water paint field；Improve the normal of graphene water dispersible at present
It is that graphene oxide (GO) is obtained by chemical oxidation with method, but unfortunately, chemical oxidation is in conjugation graphene-structured
In be also introduced into defect sites, this greatly compromises the long-term corrosion resistance of graphene；Another kind reduces graphene-structured and lacks
Sunken effective ways are points by noncovalent interaction (π-π * key) Lai Gaishan graphene (Gr) graphene (Gr) in water
Property is dissipated, it is main at present to use the high-molecular organic material containing phenyl ring；But use Graphene derivative graphene oxide (GO) straight
Connecing the method being modified to it temporarily does not have.
Summary of the invention
The present invention passes through non-covalent phase using a kind of method of environmentally protective, low energy consumption, extremely simple ultrasonic disperse
Graphene (Gr) powder is distributed in GO solution by interaction, successfully improves the dispersion of graphene (Gr) in aqueous solution
Property.Furthermore it is prepared for graphene oxide/graphene nano water-base epoxy composite coating；
To achieve the above object, the technical solution adopted by the present invention to solve the technical problems is:
The present invention provides a kind of preparation method of graphene oxide/graphene nano water-base epoxy composite coating, including such as
Lower step:
(1) graphene oxide/graphene aqueous dispersions are prepared
Graphene oxide is mixed with deionized water by mass volume ratio 3:2000, ultrasonic disperse vibrates 15-
Then graphene is added in 25min under ultrasonic disperse oscillating condition, continue ultrasonic disperse and vibrate 0.5-1h, obtain graphite oxide
Alkene/graphene aqueous dispersions；
(2) aqueous epoxy resins slurry is prepared
Aqueous epoxy resins and epoxy hardener 2:1 in mass ratio be mixed and stirred for uniformly, to obtain water-base epoxy
Resin slurry；
(3) graphene oxide/graphene nano water-base epoxy composite coating is prepared
By aqueous epoxy resins slurry obtained by graphene oxide/graphene aqueous dispersions obtained by step (1) and step (2)
It is mixed, is slowly stirred to evenly dispersed mixing is formed, the evenly dispersed mixing is sprayed on by high-pressure uniform through beating
On the steel disc for grinding processing, normal temperature cure 2-4 days, graphene oxide/graphene nano water-base epoxy composite coating is obtained；It is described
Mixing speed is 50-70r/min.
As a further optimization solution of the present invention, in step (1), the graphene oxide/graphene aqueous dispersions
Concentration is 3-15mg/mL.
As a further optimization solution of the present invention, in step (1), graphene oxide and graphene in the dispersion liquid
Mass ratio be 1:9 or 2:8 or 3:7 or 5:5.
As a further optimization solution of the present invention, in step (1), the supersonic frequency is 30-40KHz.
As a further optimization solution of the present invention, in step (2), the stirring rate is 60-80r/min.
As a further optimization solution of the present invention, in step (3), the graphene oxide/graphene aqueous dispersions with
The mass ratio of the aqueous epoxy resins slurry is 1:1000-5:1000.
As a further optimization solution of the present invention, in step (3), the high pressure pressure is 0.5-0.8Mpa.
As a further optimization solution of the present invention, in step (3), the steel disc of the grinding process reaches sandblasting grade 40
Other Sa2.5 grades.
As a further optimization solution of the present invention, in step (3), the aqueous ring of graphene oxide/graphene nano
Oxygen composite coating is with a thickness of 40-50 μm.
The present invention also provides the graphene oxide being prepared by any of the above-described method/graphene nano water-base epoxy is compound
Coating.
Beneficial effects of the present invention are as follows:
(1) graphene oxide prepared by the present invention/graphene aqueous dispersions excellent stability, standing have not yet to see graphite for 24 hours
Alkene solution coagulation, this method have that easy to operate, low energy consumption, and equipment requirement is low, advantages of environment protection.
(2) present invention carries out it using the derivative graphene oxide of graphene inorganic modified, and two kinds of material structures are several
Identical, compatibility is fabulous；And the graphene and graphene oxide of two-dimensional slice structure all have barrier corrosion well and are situated between
The performance of matter, so the coating corrosion resistance prepared is much better than traditional water paint.
Detailed description of the invention
Fig. 1 is the process schematic for preparing graphene oxide/graphene (GO/Gr) aqueous dispersions；
Fig. 2 is the scatter diagram of graphene oxide/graphene (GO/Gr) aqueous dispersions solution left standstill for 24 hours；Wherein, (a)
(g), (b) (h), (c) (i), (d) (j), (e) (k), (f) (l) are respectively graphene oxide/graphene (GO/ Gr) quality score
Not Wei 0:10,1:9,2:8,3:7,5:5 and 10:0 stand 2h and scatter diagram for 24 hours；
Fig. 3 is the purple of graphene oxide (GO), graphene (Gr) and graphene oxide/graphene (GO/Gr) composite material
External spectrum figure；
Fig. 4 is that pure aqueous epoxy resins coating, 0.3%GO and 0.3% graphene oxide/graphene (GO/Gr) is aqueous
Epoxy coating impregnates 10 days Nyquist figures in 3.5%NaCl salt water；
Fig. 5 is that pure aqueous epoxy resins coating, 0.3%GO and 0.3% graphene oxide/graphene (GO/Gr) is aqueous
Epoxy coating impregnates 30 days Nyquist figures in 3.5%NaCl salt water；
Fig. 6 is to add the water-base epoxy coating of graphene oxide/graphene (GO/Gr) of different quality containing 3.5%
Nyquist figure after being impregnated 10 days in NaCl salt water；
Fig. 7 is to add the water-base epoxy coating of graphene oxide/graphene (GO/Gr) of different quality containing 3.5%
Nyquist figure after being impregnated 30 days in NaCl salt water；
Fig. 8 is the polarization diagram after different water-base epoxy coatings impregnate 30 days in 3.5%NaCl salt water；
Fig. 9 be water-base epoxy coating salt spray test photo, wherein (a) (b) (c) (d) (e) be respectively it is pure, 0.3%
GO, 0.1% graphene oxide/graphene (GO/Gr), 0.3% graphene oxide/graphene (GO/Gr), 0.5% oxidation stone
Black alkene/graphene (GO/Gr) water-base epoxy coating.
Specific embodiment
The present invention is specifically described below by embodiment, it is necessary to which indicated herein is that following embodiment is only used
It is further detailed in the present invention, should not be understood as limiting the scope of the invention, which is skilled in technique
Some nonessential modifications and adaptations that personnel are made according to foregoing invention content, still fall within protection scope of the present invention.
Embodiment 1
A kind of preparation method of graphene oxide/graphene nano water-base epoxy composite coating, includes the following steps:
(1) graphene oxide/graphene aqueous dispersions are prepared
Graphene oxide is mixed with deionized water by mass volume ratio 3:2000, ultrasonic disperse vibrates 15min, so
Graphene is added under ultrasonic disperse oscillating condition afterwards, continues ultrasonic disperse and vibrates 1h, obtain graphene oxide/graphene water
Dispersion liquid；The mass ratio of graphene oxide and graphene is 1:9 in the dispersion liquid；The supersonic frequency is 30KHz；It is described
Graphene oxide/graphene aqueous dispersions concentration is 3mg/mL；
(2) aqueous epoxy resins slurry is prepared
Aqueous epoxy resins and epoxy hardener 2:1 in mass ratio be mixed and stirred for uniformly, to obtain water-base epoxy
Resin slurry；The stirring rate is 60r/min；
(3) graphene oxide/graphene nano water-base epoxy composite coating is prepared
By aqueous epoxy resins slurry obtained by graphene oxide/graphene aqueous dispersions obtained by step (1) and step (2)
It is mixed, is slowly stirred to evenly dispersed mixing is formed, the evenly dispersed mixing is sprayed on by high-pressure uniform through beating
On the steel disc for grinding processing, normal temperature cure 2 days, graphene oxide/graphene nano water-base epoxy composite coating is obtained；It is described to stir
Mixing speed is 50r/min；The mass ratio of the graphene oxide/graphene aqueous dispersions and the aqueous epoxy resins slurry
For 1:1000；The high pressure pressure is 0.5Mpa；The steel disc of the grinding process reaches Sa2.5 grades of sandblasting rank；The oxidation
Graphene/graphene nano water-base epoxy composite coating is with a thickness of 40 μm.
Embodiment 2
A kind of preparation method of graphene oxide/graphene nano water-base epoxy composite coating, includes the following steps:
(1) graphene oxide/graphene aqueous dispersions are prepared
Graphene oxide is mixed with deionized water by mass volume ratio 3:2000, ultrasonic disperse vibrates 15min, so
Graphene is added under ultrasonic disperse oscillating condition afterwards, continues ultrasonic disperse and vibrates 1h, obtain graphene oxide/graphene water
Dispersion liquid；The mass ratio of graphene oxide and graphene is 2:8 in the dispersion liquid；The supersonic frequency is 35 KHz；It is described
Graphene oxide/graphene aqueous dispersions concentration is 7mg/mL；
(2) aqueous epoxy resins slurry is prepared
Aqueous epoxy resins and epoxy hardener 2:1 in mass ratio be mixed and stirred for uniformly, to obtain water-base epoxy
Resin slurry；The stirring rate is 65rmin；
(3) graphene oxide/graphene nano water-base epoxy composite coating is prepared
By aqueous epoxy resins slurry obtained by graphene oxide/graphene aqueous dispersions obtained by step (1) and step (2)
It is mixed, is slowly stirred to evenly dispersed mixing is formed, the evenly dispersed mixing is sprayed on by high-pressure uniform through beating
On the steel disc for grinding processing, normal temperature cure 3 days, graphene oxide/graphene nano water-base epoxy composite coating is obtained；It is described to stir
Mixing speed is 55r/min；The mass ratio of the graphene oxide/graphene aqueous dispersions and the aqueous epoxy resins slurry
For 1:500；The high pressure pressure is 0.6Mpa；The steel disc of the grinding process reaches Sa2.5 grades of sandblasting rank；The oxidation
Graphene/graphene nano water-base epoxy composite coating is with a thickness of 45 μm.
Embodiment 3
A kind of preparation method of graphene oxide/graphene nano water-base epoxy composite coating, includes the following steps:
(1) graphene oxide/graphene aqueous dispersions are prepared
Graphene oxide is mixed with deionized water by mass volume ratio 3:2000, ultrasonic disperse vibrates 15min, so
Graphene is added under ultrasonic disperse oscillating condition afterwards, continues ultrasonic disperse and vibrates 1h, obtain graphene oxide/graphene water
Dispersion liquid；The mass ratio of graphene oxide and graphene is 3:7 in the dispersion liquid；The supersonic frequency is 38 KHz；It is described
Graphene oxide/graphene aqueous dispersions concentration is 11mg/mL；
(2) aqueous epoxy resins slurry is prepared
Aqueous epoxy resins and epoxy hardener 2:1 in mass ratio be mixed and stirred for uniformly, to obtain water-base epoxy
Resin slurry；The stirring rate is 75rmin；
(3) graphene oxide/graphene nano water-base epoxy composite coating is prepared
By aqueous epoxy resins slurry obtained by graphene oxide/graphene aqueous dispersions obtained by step (1) and step (2)
It is mixed, is slowly stirred to evenly dispersed mixing is formed, the evenly dispersed mixing is sprayed on by high-pressure uniform through beating
On the steel disc for grinding processing, normal temperature cure 2-4 days, graphene oxide/graphene nano water-base epoxy composite coating is obtained；It is described
Mixing speed is 60r/min；The quality of the graphene oxide/graphene aqueous dispersions and the aqueous epoxy resins slurry
Than for 3:1000；The high pressure pressure is 0.7Mpa；The steel disc of the grinding process reaches Sa2.5 grades of sandblasting rank；The oxygen
Graphite alkene/graphene nano water-base epoxy composite coating is with a thickness of 45 μm.
Embodiment 4
A kind of preparation method of graphene oxide/graphene nano water-base epoxy composite coating, includes the following steps:
(1) graphene oxide/graphene aqueous dispersions are prepared
Graphene oxide is mixed with deionized water by mass volume ratio 3:2000, ultrasonic disperse vibrates 15min, so
Graphene is added under ultrasonic disperse oscillating condition afterwards, continues ultrasonic disperse and vibrates 1h, obtain graphene oxide/graphene water
Dispersion liquid；The mass ratio of graphene oxide and graphene is 5:5 in the dispersion liquid；The dispersion rate is that supersonic frequency is
40KHz；The graphene oxide/graphene aqueous dispersions concentration is 15mg/mL；
(2) aqueous epoxy resins slurry is prepared
Aqueous epoxy resins and epoxy hardener 2:1 in mass ratio be mixed and stirred for uniformly, to obtain water-base epoxy
Resin slurry；The stirring rate is 80r/min；
(3) graphene oxide/graphene nano water-base epoxy composite coating is prepared
By aqueous epoxy resins slurry obtained by graphene oxide/graphene aqueous dispersions obtained by step (1) and step (2) into
Row mixing is slowly stirred to evenly dispersed mixing is formed, the evenly dispersed mixing is sprayed on by high-pressure uniform through polishing
On the steel disc of processing, normal temperature cure 4 days, graphene oxide/graphene nano water-base epoxy composite coating is obtained；The stirring
Speed is 70r/min；The graphene oxide/graphene aqueous dispersions and the mass ratio of the aqueous epoxy resins slurry are
1:200；The high pressure pressure is 0.8Mpa；The steel disc of the grinding process reaches Sa2.5 grades of sandblasting rank；The oxidation stone
Black alkene/graphene nano water-base epoxy composite coating is with a thickness of 50 μm.
Graphene oxide made from 1 embodiment 1-4 of table/graphene aqueous dispersions stability
| Graphene oxide/graphene aqueous dispersions stability (is stood for 24 hours) | |
| Embodiment 1 | Have no solution coagulation |
| Embodiment 2 | Have no solution coagulation |
| Embodiment 3 | Have no solution coagulation |
| Embodiment 4 | Have no solution coagulation |
As known to table 1, graphene oxide made from 1-4 of the embodiment of the present invention/graphene aqueous dispersions excellent stability,
The technical effect for standing 24 hours solution not coagulation can be reached, for graphene oxide/graphene nano provided by the present invention
Water-base epoxy composite coating has the good effect for promoting corrosion resistance.
Experimental example 1
Graphene oxide of the present invention/graphene nano water-base epoxy composite coating corrosion resistance experiment.
Respectively by 0.1%, 0.3%, 0.5% graphene oxide/graphene and 0.3%GO concentration aqueous dispersions and aqueous ring
The mixing of oxygen resin, ultrasonic disperse 30min prepare 0.3%GO waterborne epoxy coatings and 0.1%, 0.3%, 0.5% oxygen respectively
Then graphite alkene/graphene waterborne epoxy coatings moves it into spray gun even application in the base of sandblasting and welding respectively
On body steel disc, carried out in 1 hour be sprayed on after the completion of matrix steel disc blasting treatment of coating, after the completion of spraying, coating
Steel disc solidify at normal temperature, obtain sample coatings, using water-based epoxy resin as control.
(1) graphene oxide/graphene dispersion liquid solution stably dispersing performance is observed using the method stood.As a result see
Shown in attached drawing 2, non-modified graphene (graphene (Gr)) aqueous solution as shown in the figure is just almost settled in 2h or so,
And disperse after the inorganic modified graphene dispersing solution of graphene oxide (GO) is stood for 24 hours it is more uniform, illustrate graphene oxide/
Graphene aqueous dispersions stability is preferable.
(2) GO, graphene (Gr), graphene oxide/graphene aqueous dispersions are carried out using ultraviolet-visible photometer
Test.As a result as shown in Fig. 3, GO has obvious characteristic peak in 232.1nm, corresponding to the π-π transition of benzene ring units, and aoxidizes
Graphene/graphene solution uv atlas has obvious characteristic peak in 236.8nm, and the π-π transition peak of phenyl ring is moved from 232.1nm
236.8nm is moved on to, as a result illustrates that there are non-covalent interaction power, graphenes between GO and graphene (Gr) basal plane
(Gr) it is adsorbed on around GO lamella, to effectively improve the dispersion performance of graphene in aqueous solution.
(3) corrosion resistance of water-base epoxy composite coating is measured using CS310 electrochemical workstation, is as a result seen
Attached drawing 4-8；Attached drawing 4,5 shows pure aqueous epoxy resins coating, 0.3%GO and 0.3% graphene oxide/graphene water
Property epoxy coating impregnated in 3.5%NaCl salt water 10 days and 30 days after Nyquist figure, as can be seen that coating from two figures
After impregnating in salt water, 0.3% graphene oxide/graphene water-base epoxy coating impedance radius is far longer than water-based ring
Oxygen coating and 0.3%GO water-base epoxy coating illustrate 0.3% graphene oxide/graphene water-base epoxy coating corrosion resistance
Pure and 0.3%GO water-base epoxy coating can be much better than；Attached drawing 6,7 is the graphene oxide/graphite for adding different quality containing
Nyquist after the water-base epoxy coating of alkene impregnates 10 days and 30 days in 3.5%NaCl salt water schemes, it can be seen that working as in figure
Impedance radius when graphene oxide/graphene dosage is 0.3% is maximum, illustrates 0.3% graphene oxide/graphene
The corrosion resistance of water-base epoxy coating is 0.1 and 0.5% graphene oxide/graphene water-base epoxy coating better than dosage；
Attached drawing 8 is the polarization curve after several coatings impregnate 30 days, and as can be seen from the figure GO and graphene oxide/graphene are compound
The corrosion potential (Ecorr) of coating is mobile to positive direction, and corrosion electric current density is substantially reduced, and shows the corrosion-resistant of composite coating
Performance is better than pure aqueous epoxy resins coating；For graphene oxide/graphene/water-base epoxy composite coating, 0.3% oxygen
The corrosion index of graphite alkene/graphene hybrid filling composite coating drops to minimum, and Ecorr positive value is maximum, explanation
It has better antiseptic property than other composite coatings.
(4) using salt fog (5%NaCl) testing machine to water-based epoxy coating, 0.3%GO water-base epoxy coating, 0.1%,
0.3%, the long-term corrosion resistance of 0.5% graphene oxide/graphene water-base epoxy composite coating is tested, test
Time is 200h, as a result as shown in Fig. 9, graphene oxide/graphene nano water-base epoxy composite coating corrosion resistance
Better than pure and 0.3%GO water-base epoxy coating, when graphene oxide/graphene dosage is 0.3%, Salt Corrosion
It is optimal.
Claims (10)
1. a kind of graphene oxide/graphene nano water-base epoxy composite coating preparation method, which is characterized in that the method
Include the following steps:
(1) graphene oxide/graphene aqueous dispersions are prepared
Graphene oxide is mixed with deionized water by mass volume ratio 3:2000-3:400, ultrasonic disperse vibrates 15-
Then graphene is added in 25min under ultrasonic disperse oscillating condition, continue ultrasonic disperse and vibrate 0.5-1h, obtain graphite oxide
Alkene/graphene aqueous dispersions；
(2) aqueous epoxy resins slurry is prepared
Aqueous epoxy resins and epoxy hardener 1.5:1-2.5:1 in mass ratio be mixed and stirred for uniformly, obtaining aqueous
Epoxy resin slurry；
(3) graphene oxide/graphene nano water-base epoxy composite coating is prepared
Aqueous epoxy resins slurry obtained by graphene oxide/graphene aqueous dispersions obtained by step (1) and step (2) is mixed
It closes, is slowly stirred to evenly dispersed mixing is formed, the evenly dispersed mixing is sprayed on by high-pressure uniform through grinding process
Steel disc on, normal temperature cure 2-4 days, obtain graphene oxide/graphene nano water-base epoxy composite coating；The mixing speed
For 50-70r/min.
2. the method according to claim 1, wherein in step (1), the graphene oxide/graphene moisture
The concentration of dispersion liquid is 3-15mg/mL.
3. the method according to claim 1, wherein in step (1), graphene oxide and stone in the dispersion liquid
The mass ratio of black alkene is 1:9 or 2:8 or 3:7 or 5:5.
4. the method according to claim 1, wherein the supersonic frequency is 30-40KHz in step (1).
5. the method according to claim 1, wherein the stirring rate is 60-80r/min in step (2).
6. the method according to claim 1, wherein in step (3), the graphene oxide/graphene moisture
The mass ratio of dispersion liquid and the aqueous epoxy resins slurry is 1:1000-5:1000.
7. the method according to claim 1, wherein the high pressure pressure is 0.5-0.8Mpa in step (3).
8. the method according to claim 1, wherein the steel disc of the grinding process reaches sandblasting in step (3)
Sa2.5 grades of rank.
9. the method according to claim 1, wherein in step (3), the graphene oxide/graphene nano
Water-base epoxy composite coating is with a thickness of 40-50 μm.
10. graphene oxide/graphene nano water-base epoxy as the described in any item methods of claim 1-9 are prepared is multiple
Close coating.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204991A (en) * | 2019-04-28 | 2019-09-06 | 西南石油大学 | A kind of efficient corrosion resisting h-BN/GO/ water-base epoxy composite material, preparation method and application |
| CN115477877A (en) * | 2022-10-12 | 2022-12-16 | 雅迪科技集团有限公司 | Composition for electrophoretic pretreatment coating and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106867298A (en) * | 2017-03-15 | 2017-06-20 | 中国科学院宁波材料技术与工程研究所 | The preparation method of graphite alkenes anticorrosive paint |
-
2018
- 2018-10-16 CN CN201811204324.1A patent/CN109608979A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106867298A (en) * | 2017-03-15 | 2017-06-20 | 中国科学院宁波材料技术与工程研究所 | The preparation method of graphite alkenes anticorrosive paint |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204991A (en) * | 2019-04-28 | 2019-09-06 | 西南石油大学 | A kind of efficient corrosion resisting h-BN/GO/ water-base epoxy composite material, preparation method and application |
| CN115477877A (en) * | 2022-10-12 | 2022-12-16 | 雅迪科技集团有限公司 | Composition for electrophoretic pretreatment coating and preparation method and application thereof |
| CN115477877B (en) * | 2022-10-12 | 2024-01-09 | 雅迪科技集团有限公司 | Composition for electrophoresis pretreatment coating and preparation method and application thereof |
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