CN107619617B - A kind of high dispersive, the graphene coating of high corrosion resistant and preparation method - Google Patents
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Abstract
The invention belongs to the technical fields of coating preparation, provide a kind of high dispersive, the graphene coating of high corrosion resistant and preparation method.A kind of high dispersive of this method, the graphene coating of high corrosion resistant and preparation method, which is characterized in that sputter etching is carried out to silicon carbide ceramics particle using focused ion beam, obtains carrier.Then in tube furnace, zinc powder oxidation is vapor-deposited, and chemical vapor-phase growing in-situ preparation graphene, graphene, in carrier hole, obtains acid and alkali-resistance filler with deposition of zinc oxide.The filler is added in coating, can promote the fine dispersion of graphene, and the acid-proof alkaline of film is obviously improved.Compared with conventional method, graphene dispersion is good in the graphene coating for preparing of the present invention, be firmly combined with, be not easily to fall off, load factor it is high, there are dual anticorrosion and acid-alkali-corrosive-resisting performance simultaneously, whole preparation process technique is relatively simple, easy to operate, product cost is high, stable quality.
Description
Technical field
The invention belongs to the technical fields of coating preparation, provide a kind of high dispersive, the graphene coating of high corrosion resistant and system
Preparation Method.
Background technology
Graphene (Graphene) is a kind of two dimension (2D) material of novel single-layer laminated structure being made of carbon atom, is
By carbon atom with the hexangle type that sp2 hybridized orbits form in the flat film of honeycomb lattice.It is most attracted attention as 21 century by people
One of new material, graphene crystalline material have " to it is thin, to hard ", the characteristics such as excellent heat conductor and electron mobility.
Unique design feature makes its purposes cause the high expectation of people plus " extreme prominent " performance, and graphene is or will
Revolutionary great change is brought to society, research temperature is persistently overheating in the whole world!To graphene conduction, anti-corrosion, fire-retardant, heat conduction and
Colorful prospect has also been delineated in application in the functional paints such as high intensity.
Graphene coating is to utilize graphene high-specific surface area, Quick conductive, excellent chemical stability, the power of protrusion
Learn one of important uses of performances such as performance, high-termal conductivity.Graphene is used to that in coating pure graphene coating and graphite can be prepared
Alkene composite coating, the former is primarily referred to as the functional paint for the effects that pure graphene plays anticorrosion, conduction in metal surface；The latter
It is compound with fluoropolymer resin first to be primarily referred to as graphene, functional paint is then prepared with composite material.Graphene can be carried significantly
The performance of polymer is risen, therefore graphene composite coating becomes the important application research field of graphene.Graphene is applied in conduction
The comprehensive performance of coating can be greatly improved in the coating systems such as material, anticorrosive paint, anti-flaming dope, such as reduces coating layer thickness,
Increase the adhesive force to base material, promote coating wearability, and make coating that there is green environmental protection.Especially in conductive coating, epoxy
In zinc-rich paint, water-based anticorrosive paint there is prominent performance to show, graphene will push the new round industrial transformation of coating
Upgrading.
With the functionalization graphene largely containing oxygen-containing group, it is strong and its suitable with the binding force of resin, high molecular material
Cooperation supporting material or functionalization material.The mode majority applied to coating of graphene is using graphene as functionality at present
Filler is added, and is thus brought a critical issue is how to solve the dispersion stabilization problem of graphene, is needed to graphite
Alkene is modified.The result of study of Liu Lin etc. shows：Chemically modified graphene and the surface of graphene oxide have abundant
Functional group（Hydroxyl, carboxyl, epoxy group）, can realize nano-dispersion in polymer body, so as to effectively assign and
Improve the performance of polymer.Another application mode of graphene is to be prepared into graphene by the compound method of organic/inorganic
Composite material realizes the stable dispersion of graphene and its performance of features.
At present both at home and abroad in graphene coating preparation, especially graphene dispersion, rotproofness and resistance to acid and alkali etc.
Research achieved certain effect.Wherein wear a kind of graphene anticorrosive paint of the emerging invention of benevolence（Chinese invention patent application number
201610878263.1）, increase the stability of graphene by carrying out secondary oxidation modification to graphite, be conducive to maximum performance
The corrosion resistance of graphene in itself makes the coating prepared have excellent adhesive force, hardness and wearability and resistance to neutral salt
Mist corrosivity, but this method material requested is more, and preparation process is complicated, and cost is higher, and dispersibility and resistance to acid and alkali are bad.Separately
Outside, Qu Yanfa understands a kind of bi-component graphene anticorrosive paint（201510497999.X）, graphene is added to anti-by the invention
In rotten coating, the thickness of coating paint film is greatly reduced；By the selection to each component, while anti-corrosion effect is improved, greatly
The big content for reducing zinc powder, overcomes zinc-rich paint to sacrifice anti-corrosion mode of the zinc powder as cost, greatly reduces and welding
When the zinc oxide fog that generates, environmental-friendly, but this method complex technical process, cost is higher, at the same unresolved graphene with
The combination sex chromosome mosaicism of carrier.
As it can be seen that the agglomeration because of graphene in itself exists in the prior art, cause the uniformity of its dispersion, fine and close sexual intercourse
Fork, easily overlap aggregation, at the same when graphene is equipped on general carrier exist with reference to it is insecure, easy to fall off, load factor is low
The problems such as.
Invention content
The object of the present invention is to provide a kind of high dispersive, the graphene coating of high corrosion resistant and preparation method, using focus on from
Beamlet carries out sputter etching to silicon carbide ceramics particle, obtains carrier.Then in tube furnace, zinc powder is aoxidized into progress gas phase and is sunk
Product, and chemical vapor-phase growing in-situ preparation graphene, graphene, in carrier hole, obtain acid and alkali-resistance and fill out with deposition of zinc oxide
Material.The filler is added in coating, can promote the fine dispersion of graphene, and the acid-proof alkaline of film is obviously improved, and can be solved
Certainly agglomeration of the graphene coating because of graphene obtained by conventional method in itself causes the uniformity of its dispersion, fine and close sex-intergrade,
Easily overlap aggregation, while avoids when graphene is equipped on general carrier and combine insecure, easy to fall off, load factor is low etc.
Problem, and then obtain high dispersive and high corrosion resistant performance.
Specific technical solution of the present invention is as follows：
A kind of high dispersive, the graphene coating of high corrosion resistant and preparation method, using focused ion beam to silicon carbide ceramics
Grain carries out sputter etching, obtains carrier, and then in tube furnace, zinc powder oxidation is vapor-deposited, and chemical vapor-phase growing
In-situ preparation graphene, graphene, in carrier hole, obtain acid and alkali-resistance filler with deposition of zinc oxide, which adds in coating
In, the fine dispersion of graphene can be promoted, and the acid-proof alkaline of film is obviously improved.Preparation is as follows：
（1）Sputter etching is carried out to silicon carbide ceramics particle using focused ion beam, with Ga+Ion leads to as ion source
Control ion beam current size is crossed, the pit of inverted trapezoidal is formed in silicon carbide, obtains the Carboround with high opening rate；
（2）By step（1）The Carboround of gained is placed on quartz plate, covers one layer of zinc powder, and cover on its surface
One layer of graphite powder, is placed in quartz boat, and quartz boat is placed in tube furnace center, then under nitrogen and oxygen flow, tube furnace
It gradually heats up, after held for some time, is made annealing treatment, then stop being passed through nitrogen and oxygen, be changed to be passed through methane gas
It is reacted, stops ventilating methane gas after a certain period of time, then room temperature is gradually cooling under argon gas and atmosphere of hydrogen, the stone of generation
Black alkene, in the etching hole of silicon carbide, obtains the filler of acid and alkali-resistance with deposition of zinc oxide；
（3）By step（2）The acid and alkali-resistance filler of gained is added in coating, is coated after mixing, obtained film
Middle graphene dispersion is good, and the acid-proof alkaline of film be improved significantly.
Preferably, step（1）The silicon carbide ceramics particle is black silicon carbide, and proportion is 3.2~3.3g/cm2, grain size
It is 20~30 μm.
Preferably, step（1）The ion beam current size is 1000~3000pA.
Preferably, step（1）The near coal-mine area of the pit is 4 μm of 2 μ m, 2 μm~4 μ m, and pit depth is 3~6 μ
m。
Preferably, step（2）The grain size of the zinc powder be 5~10 μm, addition for Carboround quality 4~
8%。
Preferably, step（2）The quality of the covering graphite powder is the 15~25% of zinc powder quality, and grain size is 10~15 μm.
Preferably, step（2）The holding temperature is 800~1000 DEG C, and soaking time is 20~40min.
Preferably, step（2）The time of the annealing is 20~30min.
Preferably, step（2）The reaction time being passed through after methane gas is 15~20min.
Preferably, step（2）The cooling velocity is 0.5~1 DEG C/s.
Preferably, step（3）The addition mass ratio of the acid and alkali-resistance filler is 2~4%.
The present invention also provides a kind of high dispersive being prepared using above-mentioned preparation method, the graphene coating of high corrosion resistant.
Focused ion beam is a kind of new technology for being combined microanalysis with micro Process.Sputter etching is by high energy Ga+
Ion bombardment specimen surface sputters sample material and realizes etching.The particle being sputtered out has certain energy, can hit
Etching surface, a part are deposited to specimen surface again, and also some particle is deposited to pit after being elastically scattered again
Inner surface.The process that it is etched is as follows：When starting etching, redeposition mainly appears on pit edge, and thickness is smaller.With quarter
Erosion gradually deeply, start instantaneous redeposition occur inside pit, redeposition at this time is distributed mainly on the inside of crater wall, few portion
Redeposition is in hole bottom after the rebound by crater wall for gradation, and based on cheating in the middle part of bottom.Simultaneously as the deposition at pit edge
Substance blocks ion beam, makes ion beam that can not etch the deposition region of crater wall bottom, and the inclination angle of crater wall gradually forms, and promotes to lose
The cross sectional shape in hole develops to an inverted trapezoidal.It, can be on its surface after silicon carbide ceramics particle is used focused-ion-beam lithography
Many pits are formed, improve specific surface area, and obtain higher percent opening, are used as the carrier of graphene and zinc oxide,
Load factor can be significantly improved, and is firmly combined with, it is not easily to fall off.
Graphene has special laminar structured, can be used as filler as flakey mica powder, aluminium powder, glass flake etc.
Applied in anticorrosive paint.Its laminar structured good physical shielding that is diffused with to water, oxygen and ion acts on, Ke Yizeng
Add the infiltration distance of corrosive medium in the coating, so as to reach corrosion proof function, referred to as " labyrinth effect ".Its sp stablized2It is miscellaneous
Physical barriers can be formed between matrix and active medium by changing structure, prevent the progress of scattering and permeating.Meanwhile graphene exists
Under hot conditions or with can keep relative stability in corrosive environment, the protection painting for extreme environment can be developed
Material.And zinc oxide can neutralize acid, alkaline matter simultaneously, and secondary anti-corrosion is carried out to the acid and alkali substance for penetrating into coating.It uses as a result,
Graphene, as anticorrosive packing, can play synergistic effect with zinc oxide.The method of the present invention is in-situ preparation graphene and oxidation
Zinc, and be vapor-deposited on Carboround, due to good fluidity of the ball type carrier in cold coating, graphite is improved indirectly
The dispersibility of alkene, while prevent itself reuniting for graphene.
Graphene coating prepared by the present invention, the method with directly adding graphene and zinc oxide（Silicon carbide is not prepared
Carrier, not using chemical deposition）It compares, the indoor anticorrosive grade of film and outdoor anti-corrosion grade are as shown in table 1.It can
See：The method of the present invention can assign coating excellent acid-alkali-corrosive-resisting performance, be highly suitable for tight to acid-proof alkaline requirement
Severe field.
Table 1
The present invention provides a kind of high dispersive, the graphene coating of high corrosion resistant and preparation method, compared with prior art,
The characteristics of prominent and excellent effect are：
1. graphene coating prepared by the present invention, graphene dispersion is good, is not susceptible to reunite again, is conducive to maintain it
The uniformity and compactness of dispersion.
2. graphene coating prepared by the present invention, graphene is equipped on Carboround with zinc oxide in a manner of chemical deposition
On, be firmly combined with, be not easily to fall off, load factor it is high.
3. graphene coating prepared by the present invention, internal graphene plays dual etch-proof work with zinc oxide
With the excellent acid-alkali-corrosive-resisting performance of imparting coating is highly suitable for the field harsh to acid-proof alkaline requirement.
4. the preparation method of the present invention, production equipment is common, and technique is relatively simple, easy to operate, and product cost is high, matter
Amount is stablized.
Specific embodiment
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention
Range be only limitted to following example.Without departing from the idea of the above method of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
A kind of high dispersive, the graphene coating of high corrosion resistant and preparation method, prepare the detailed process of corrosion resistant coating such as
Under：
It is 3.3g/cm to take proportion2, grain size be 20 μm of silicon carbide ceramics particle, it is splashed using focused ion beam
Etching is penetrated, with Ga+For ion as ion source, ion beam current size is 3000pA, and the pit of inverted trapezoidal is formed in silicon carbide,
Near coal-mine area is 2 μm of 2 μ m, and pit depth is 6 μm, obtains the Carboround with high opening rate；The silicon carbide of gained carries
Body is placed in covering 10kg zinc powders on quartz plate, and the graphite powder for being 15 μm in its surface covering 2kg grain sizes, is subsequently placed in half opening
Quartz boat in.Then quartz boat is placed in tube furnace center, then under nitrogen and oxygen flow, tube furnace is gradually heating to
1000 DEG C, after keeping the temperature 20min, annealing 20min is carried out, then stops nitrogen and oxygen, is passed through methane gas and is reacted,
Stop reaction after 20min, room temperature be gradually cooling to the speed of 1 DEG C/s under argon gas and atmosphere of hydrogen, the graphene of generation with
Deposition of zinc oxide obtains the filler of acid and alkali-resistance in the etching hole of silicon carbide；By the acid and alkali-resistance filler with 2% mass ratio
It adds in coating, is coated after mixing, graphene dispersion is good in obtained film, and the acid-proof alkaline of film obtains
To being obviously improved.
To the graphene coating that embodiment 1 obtains, the indoor anticorrosive grade of its film and outdoor anti-corrosion grade are tested, is obtained
Data it is as shown in table 2.
Embodiment 2
A kind of high dispersive, the graphene coating of high corrosion resistant and preparation method, prepare the detailed process of corrosion resistant coating such as
Under：
It is 3.2g/cm to take proportion2, grain size be 25 μm of silicon carbide ceramics particle, it is splashed using focused ion beam
Etching is penetrated, with Ga+For ion as ion source, ion beam current size is 3000pA, and the pit of inverted trapezoidal is formed in silicon carbide,
Near coal-mine area is 4 μm of 4 μ m, and pit depth is 3 μm, obtains the Carboround with high opening rate；The silicon carbide of gained carries
Body is placed in covering 10kg zinc powders on quartz plate, and the graphite powder for being 15 μm in its surface covering 2.5kg grain sizes, is subsequently placed in half-open
In the quartz boat of mouth.Then quartz boat is placed in tube furnace center, then under nitrogen and oxygen flow, tube furnace gradually heats up
To 800 DEG C, after keeping the temperature 40min, annealing 30min is carried out, then stops nitrogen and oxygen, methane gas is passed through and carries out instead
Should, stop reaction after 20min, room temperature, the graphite of generation are gradually cooling to the speed of 0.5 DEG C/s under argon gas and atmosphere of hydrogen
Alkene, in the etching hole of silicon carbide, obtains the filler of acid and alkali-resistance with deposition of zinc oxide；By the acid and alkali-resistance filler with 2% quality
Ratio is added in coating, is coated after mixing, graphene dispersion is good in obtained film, and the resistance to acid and alkali of film
Can be improved significantly.
To the graphene coating that embodiment 2 obtains, the indoor anticorrosive grade of its film and outdoor anti-corrosion grade are tested, is obtained
Data it is as shown in table 2.
Embodiment 3
A kind of high dispersive, the graphene coating of high corrosion resistant and preparation method, prepare the detailed process of corrosion resistant coating such as
Under：
It is 3.2g/cm to take proportion2, grain size be 22 μm of silicon carbide ceramics particle, it is splashed using focused ion beam
Etching is penetrated, with Ga+For ion as ion source, ion beam current size is 2000pA, and the pit of inverted trapezoidal is formed in silicon carbide,
Near coal-mine area is 3 μm of 3 μ m, and pit depth is 5 μm, obtains the Carboround with high opening rate；The silicon carbide of gained carries
Body is placed in covering 10kg zinc powders on quartz plate, and the graphite powder for being 12 μm in its surface covering 1.5kg grain sizes, is subsequently placed in half-open
In the quartz boat of mouth.Then quartz boat is placed in tube furnace center, then under nitrogen and oxygen flow, tube furnace gradually heats up
To 900 DEG C, after keeping the temperature 25min, annealing 25min is carried out, then stops nitrogen and oxygen, methane gas is passed through and carries out instead
Should, stop reaction after 18min, room temperature, the graphene of generation are gradually cooling to the speed of 1 DEG C/s under argon gas and atmosphere of hydrogen
With deposition of zinc oxide in the etching hole of silicon carbide, the filler of acid and alkali-resistance is obtained；By the acid and alkali-resistance filler with 2% mass ratio
Example is added in coating, is coated after mixing, graphene dispersion is good in obtained film, and the acid-proof alkaline of film
Be improved significantly.
To the graphene coating that embodiment 3 obtains, the indoor anticorrosive grade of its film and outdoor anti-corrosion grade are tested, is obtained
Data it is as shown in table 2.
Embodiment 4
A kind of high dispersive, the graphene coating of high corrosion resistant and preparation method, prepare the detailed process of corrosion resistant coating such as
Under：
It is 3.3g/cm to take proportion2, grain size be 28 μm of silicon carbide ceramics particle, it is splashed using focused ion beam
Etching is penetrated, with Ga+For ion as ion source, ion beam current size is 1500pA, and the pit of inverted trapezoidal is formed in silicon carbide,
Near coal-mine area is 4 μm of 4 μ m, and pit depth is 6 μm, obtains the Carboround with high opening rate；The silicon carbide of gained carries
Body is placed in covering 10kg zinc powders on quartz plate, and the graphite powder for being 10 μm in its surface covering 1.2kg grain sizes, is subsequently placed in half-open
In the quartz boat of mouth.Then quartz boat is placed in tube furnace center, then under nitrogen and oxygen flow, tube furnace gradually heats up
To 1000 DEG C, after keeping the temperature 20min, annealing 30min is carried out, then stops nitrogen and oxygen, methane gas is passed through and carries out instead
Should, stop reaction after 15min, room temperature, the graphene of generation are gradually cooling to the speed of 1 DEG C/s under argon gas and atmosphere of hydrogen
With deposition of zinc oxide in the etching hole of silicon carbide, the filler of acid and alkali-resistance is obtained；By the acid and alkali-resistance filler with 4% mass ratio
Example is added in coating, is coated after mixing, graphene dispersion is good in obtained film, and the acid-proof alkaline of film
Be improved significantly.
To the graphene coating that embodiment 4 obtains, the indoor anticorrosive grade of its film and outdoor anti-corrosion grade are tested, is obtained
Data it is as shown in table 2.
Embodiment 5
A kind of high dispersive, the graphene coating of high corrosion resistant and preparation method, prepare the detailed process of corrosion resistant coating such as
Under：
It is 3.2g/cm to take proportion2, grain size be 25 μm of silicon carbide ceramics particle, it is splashed using focused ion beam
Etching is penetrated, with Ga+For ion as ion source, ion beam current size is 2500pA, and the pit of inverted trapezoidal is formed in silicon carbide,
Near coal-mine area is 2 μm of 2 μ m, and pit depth is 4 μm, obtains the Carboround with high opening rate；The silicon carbide of gained carries
Body is placed in covering 10kg zinc powders on quartz plate, and the graphite powder for being 12 μm in its surface covering 1.8kg grain sizes, is subsequently placed in half-open
In the quartz boat of mouth.Then quartz boat is placed in tube furnace center, then under nitrogen and oxygen flow, tube furnace gradually heats up
To 850 DEG C, after keeping the temperature 35min, annealing 28min is carried out, then stops nitrogen and oxygen, methane gas is passed through and carries out instead
Should, stop reaction after 15min, room temperature, the graphite of generation are gradually cooling to the speed of 0.5 DEG C/s under argon gas and atmosphere of hydrogen
Alkene, in the etching hole of silicon carbide, obtains the filler of acid and alkali-resistance with deposition of zinc oxide；By the acid and alkali-resistance filler with 3% quality
Ratio is added in coating, is coated after mixing, graphene dispersion is good in obtained film, and the resistance to acid and alkali of film
Can be improved significantly.
To the graphene coating that embodiment 5 obtains, the indoor anticorrosive grade of its film and outdoor anti-corrosion grade are tested, is obtained
Data it is as shown in table 2.
Embodiment 6
A kind of high dispersive, the graphene coating of high corrosion resistant and preparation method, prepare the detailed process of corrosion resistant coating such as
Under：
It is 3.2g/cm to take proportion2, grain size be 30 μm of silicon carbide ceramics particle, it is splashed using focused ion beam
Etching is penetrated, with Ga+For ion as ion source, ion beam current size is 3000pA, and the pit of inverted trapezoidal is formed in silicon carbide,
Near coal-mine area is 3 μm of 3 μ m, and pit depth is 6 μm, obtains the Carboround with high opening rate；The silicon carbide of gained carries
Body is placed in covering 10kg zinc powders on quartz plate, and the graphite powder for being 10 μm in its surface covering 1.5kg grain sizes, is subsequently placed in half-open
In the quartz boat of mouth.Then quartz boat is placed in tube furnace center, then under nitrogen and oxygen flow, tube furnace gradually heats up
To 1000 DEG C, after keeping the temperature 20min, annealing 20min is carried out, then stops nitrogen and oxygen, methane gas is passed through and carries out instead
Should, stop reaction after 15min, room temperature, the graphene of generation are gradually cooling to the speed of 1 DEG C/s under argon gas and atmosphere of hydrogen
With deposition of zinc oxide in the etching hole of silicon carbide, the filler of acid and alkali-resistance is obtained；By the acid and alkali-resistance filler with 3% mass ratio
Example is added in coating, is coated after mixing, graphene dispersion is good in obtained film, and the acid-proof alkaline of film
Be improved significantly.
To the graphene coating that embodiment 6 obtains, the indoor anticorrosive grade of its film and outdoor anti-corrosion grade are tested, is obtained
Data it is as shown in table 2.
Comparative example 1
Carboround is not prepared, not using chemical deposition, is directly added the graphene of corrresponding quality with zinc oxide
Enter in coating, other preparation conditions are consistent with embodiment 6.
To the graphene coating that comparative example 1 obtains, the indoor anticorrosive grade of its film and outdoor anti-corrosion grade are tested, wherein
Indoor anticorrosive grade is divided into：Indoor anti-moderate corrosion type F1；Indoor resistant to strong corrosion type F2；Outdoor anti-corrosion grade is divided into：Open air is anti-
Light corrosion type W；Outdoor anti-moderate corrosion type WF1；Outdoor resistant to strong corrosion type WF2, obtained data are as shown in table 2.
Table 2
Claims (9)
1. the preparation method of the graphene coating of a kind of high dispersive, high corrosion resistant, which is characterized in that using focused ion beam to carbonization
Silicon ceramic particle carries out sputter etching, obtains carrier, then in tube furnace, zinc powder oxidation is vapor-deposited, and chemistry
Vapor phase growth in-situ preparation graphene, graphene, in carrier hole, obtain acid and alkali-resistance filler, which adds with deposition of zinc oxide
Enter in coating, the fine dispersion of graphene can be promoted, and the acid-proof alkaline of film is obviously improved, the specific steps of preparation are such as
Under：
（1）Sputter etching is carried out to silicon carbide ceramics particle using focused ion beam, with Ga+Ion passes through control as ion source
Ion beam current size forms the pit of inverted trapezoidal in silicon carbide, obtains the Carboround with high opening rate；
（2）By step（1）The Carboround of gained is placed on quartz plate, covers one layer of zinc powder, and cover one layer on its surface
Graphite powder is placed in quartz boat, quartz boat is placed in tube furnace center, then under nitrogen and oxygen flow, tube furnace is gradual
It heats up, after held for some time, is made annealing treatment, then stop being passed through nitrogen and oxygen, be changed to be passed through methane gas progress
Reaction stops ventilating methane gas, then room temperature is gradually cooling under argon gas and atmosphere of hydrogen after a certain period of time, the graphene of generation
With deposition of zinc oxide in the etching hole of silicon carbide, the filler of acid and alkali-resistance is obtained；
（3）By step（2）The acid and alkali-resistance filler of gained is added in coating, is coated after mixing, stone in obtained film
Black alkene is well dispersed, and the acid-proof alkaline of film be improved significantly.
2. according to claim 1 a kind of high dispersive, high corrosion resistant graphene coating preparation method, it is characterised in that：Step
Suddenly（1）The silicon carbide ceramics particle is black silicon carbide, and proportion is 3.2~3.3, and grain size is 20~30 μm.
3. according to claim 1 a kind of high dispersive, high corrosion resistant graphene coating preparation method, it is characterised in that：Step
Suddenly（1）The ion beam current size is 1000~3000pA.
4. according to claim 1 a kind of high dispersive, high corrosion resistant graphene coating preparation method, it is characterised in that：Step
Suddenly（1）The near coal-mine area of the pit is 4 μm of 2 μ m, 2 μm~4 μ m, and pit depth is 3~6 μm.
5. according to claim 1 a kind of high dispersive, high corrosion resistant graphene coating preparation method, it is characterised in that：Step
Suddenly（2）The grain size of the zinc powder is 5~10 μm, and addition is the 4~8% of Carboround quality；The covering graphite powder
Quality is the 15~25% of zinc powder quality, and grain size is 10~15 μm.
6. according to claim 1 a kind of high dispersive, high corrosion resistant graphene coating preparation method, it is characterised in that：Step
Suddenly（2）The holding temperature is 800~1000 DEG C, and soaking time is 20~40min.
7. according to claim 1 a kind of high dispersive, high corrosion resistant graphene coating preparation method, it is characterised in that：Step
Suddenly（2）The time of the annealing is 20~30min；The reaction time being passed through after methane gas is 15~20min；Institute
Cooling velocity is stated as 0.5~1 DEG C/s.
8. according to claim 1 a kind of high dispersive, high corrosion resistant graphene coating preparation method, it is characterised in that：Step
Suddenly（3）The addition mass ratio of the acid and alkali-resistance filler is 2~4%.
9. the graphene coating of the high dispersive being prepared using any one of claim 1~8 preparation method, high corrosion resistant.
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| CN104817930A (en) * | 2015-05-05 | 2015-08-05 | 济宁利特纳米技术有限责任公司 | Heat-conductive and anti-corrosion coating based on graphene functional material and preparation method of same |
| US10871256B2 (en) * | 2015-07-27 | 2020-12-22 | Schlumberger Technology Corporation | Property enhancement of surfaces by electrolytic micro arc oxidation |
| CN105296958B (en) * | 2015-11-10 | 2018-10-02 | 中国科学院重庆绿色智能技术研究院 | A kind of three-dimensional non-catalytic base load graphene film structure and its preparation method at low ambient temperatures |
| CN106380630B (en) * | 2016-08-29 | 2018-10-23 | 北京化工大学 | A kind of preparation method and applications of chemical bond mould assembly heat conductive insulating compounded mix |
| CN107058971A (en) * | 2017-04-10 | 2017-08-18 | 中国科学院重庆绿色智能技术研究院 | The preparation method and application of graphene composite material |
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