CN108929620A - A kind of compound zinc powder graphene coating and preparation method thereof - Google Patents
A kind of compound zinc powder graphene coating and preparation method thereof Download PDFInfo
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- CN108929620A CN108929620A CN201810844148.1A CN201810844148A CN108929620A CN 108929620 A CN108929620 A CN 108929620A CN 201810844148 A CN201810844148 A CN 201810844148A CN 108929620 A CN108929620 A CN 108929620A
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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
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
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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
Abstract
The invention discloses a kind of compound zinc powder graphene coating and preparation method thereof.This compound zinc powder graphene coating includes base-material and curing agent, and wherein base-material is made of the raw material of following mass parts: 12 parts~18 parts of zinc flake；2 parts~8 parts of spherical zinc powder；5 parts~10 parts of graphene ceramic composite；10 parts~20 parts of active filler；15 parts~30 parts of epoxy resin；10 parts~30 parts of diluent；1 part~10 parts of auxiliary agent；Curing agent is amine curing agent.The preparation method of this compound zinc powder graphene coating is also disclosed simultaneously.The present invention is using zinc flake as main antirust filler; characteristic is overlapped using the good electric conductivity of graphene and sheet; modified graphene is added to anticorrosive paint system; good conductive network is formed with zinc powder; the synergistic effect of zinc flake and graphene microchip is given full play to, so that breakthrough realizing still has excellent cathodic protection effect and antiseptic property under conditions of low zinc.
Description
Technical field
The present invention relates to a kind of compound zinc powder graphene coating and preparation method thereof.
Background technique
Zinc rich primer is current corrosion of steel structure and most-often used one of the anti-corrosion primer in protection field, which has excellent
Long-effective corrosion performance and good mechanical performance, can be mating with a variety of upper coatings.Zinc rich primer obtains on antiseptic project
It is more and more widely used, has obtained the approval of all trades and professions personage.But the zinc rich primer on current domestic and international market is all made of
Spherical zinc powder accounts for 60% or more of zinc-rich paint formula as filler, the dosage of spherical zinc powder.The consumption of zinc resource can not answer
, the dosage and wear rate of zinc powder in zinc rich primer how are reduced, the utilization efficiency of zinc resource is improved, saves the zinc ore in China
Resource is the important research content of anti-corrosion industry.
It is generally believed that zinc rich primer film to be made plays cathodic protection effect, a large amount of zinc powder must be contained in dry film
Particle, they must contact with each other and keep good contact that could form galvanic circle with substrate.But it is high in zinc rich primer
Zinc content also brings along a series of problem.Firstly, zinc content is high, the compactness decline of paint film will affect the resistance to of coating
Aqueous, adhesive force and impact resistance etc..Secondly, in zinc rich primer high zinc content to the production of zinc rich primer, storage and transportation with
And construction etc. brings inconvenience.For metallic zinc when producing and preparing coating, stably dispersing is more difficult, holds during storage
It is also easy to produce and serious sinks to the bottom phenomenon.Third, the steel substrate containing zinc rich primer can be due in priming paint in welding and cutting
High zinc content can generate a large amount of zinc fume, may result in staff and generate " zinc pyreticosis ", endanger the body of staff
Body health.
Conventional zinc-rich anticorrosive paint zinc content is generally not less than 80%.Firstly, high zinc content causes huge zinc to disappear
Consumption, 90% or more of China's annual output zinc powder is all used for protection of materials according to statistics；Secondly, high zinc content easily makes coating appearance more
Pore structure, coating shield and mechanical properties decrease；Furthermore the steel containing zinc rich primer can generate largely in welding and cutting
Zinc fume, Long Term Contact will lead to staff and generate " zinc pyreticosis ", endanger health of human body；In addition, as zinc powder price continues
It is soaring, it also results in coating cost and rises steadily.Therefore reduce zinc-rich anticorrosive paint zinc content become industry there is an urgent need to.
Wang Yaowen etc. is filled into epoxy coating using graphene as filler, by film adhesive test, is impregnated
The methods of test, Tafel polarization curve test are tested to have probed into the antiseptic property of coating.The result shows that the addition of graphene
Effectively increase the antiseptic property of coating.The good antiseptic property of graphene mostlys come from its excellent electric conductivity, unique
The characteristics such as two-dimensional slice structure and its surface hydrophobicity.Graphene is added to conductive coating, anticorrosive paint, resistance by Shen Haibin etc.
The comprehensive performance of coating greatly improves after the coating systems such as burning coating material, and such as required coating layer thickness reduces, coating adhesion, wearability
Increase, there is performance outstanding especially in conductive coating, epoxy zinc-enriched paint, water-based anticorrosive paint.
There are Chinese Academy of Sciences's Ningbo Materials Research Laboratories in the main research unit of graphite zinc alkene coating at present, and road fluffy science and technology in Jiangsu is limited
Company, the units such as Xinhe New Materials Co., Ltd., main technological route are using redox graphene and spherical zinc
Powder combines, and the coating zinc content of preparation is in 40wt% or more.That there are still loadings is big for spherical zinc powder, and shielding properties is not high
Defect, in addition, its graphene for using mainly is prepared using traditional oxidation-reduction method, the electronic structure and crystalline substance of graphene
The integrality of body receives the destruction of strong oxidizer, influences its conductive and shielding properties.
Summary of the invention
The purpose of the present invention is to provide a kind of compound zinc powder graphene coating and preparation method thereof.
The technical solution used in the present invention is:
A kind of compound zinc powder graphene coating, including base-material and curing agent；
Base-material is made of the raw material of following mass parts:
Curing agent is amine curing agent.
In compound zinc powder graphene coating, the mass ratio of base-material and curing agent is (3~8): 1.
In base-material, the partial size of zinc flake is 10 μm~20 μm；The partial size of spherical zinc powder is 2 μm~4 μm.
In base-material, graphene ceramic composite is the composite material of graphene, magnesium aluminate spinel and aluminium oxide composition.
In base-material, graphene ceramic composite is to be closed using magnesium powder, alumina powder and carbon dioxide as raw material by burning
It is prepared at reaction.
In base-material, active filler is talcum powder, lithopone, mica powder, blanc fixe, trbasic zinc phosphate, nano silica
At least one of.
In base-material, epoxy resin is E-51 epoxy resin, E-44 epoxy resin, E-20 epoxy resin, DER331 asphalt mixtures modified by epoxy resin
At least one of rouge, DER671 epoxy resin, CYD011 epoxy resin.
In base-material, diluent is dimethylbenzene, n-butanol, cyclohexanone, isophorone, methyl iso-butyl ketone (MIBK), ethylene glycol only son
At least one of ether, propylene glycol methyl ether acetate, benzyl alcohol.
In base-material, auxiliary agent is at least one of levelling agent, coupling agent, dispersing agent, defoaming agent.
The preparation method of this compound zinc powder graphene coating, comprising the following steps:
1) graphene ceramic composite is prepared
First magnesium powder and alumina powder are uniformly mixed, then obtained mixed powder is placed in reactor, in carbon dioxide
Under atmosphere, it is powered and induces self-propagating combustion reaction, it is cooling, obtain graphene ceramic composite；
2) compound zinc powder graphene paint binder is prepared
First graphene ceramic composite, epoxy resin, diluent are mixed evenly, add active filler stirring
Uniformly, fineness≤50 μm are ground to, zinc flake is then added and spherical zinc powder stirs evenly, obtains compound zinc powder graphene and applies
Expect base-material；
3) compound zinc powder graphene coating is prepared
Compound zinc powder graphene paint binder and curing agent are mixed, stirs evenly, obtains compound zinc powder graphene coating.
The beneficial effects of the present invention are:
The present invention, as main antirust filler, is overlapped special using zinc flake using the good electric conductivity of graphene and sheet
Property, modified graphene is added to anticorrosive paint system, forms good conductive network with zinc powder, give full play to zinc flake with
The synergistic effect of graphene microchip, so that breakthrough realizing still is made with excellent cathodic protection under conditions of low zinc
With and antiseptic property.
It is specific as follows:
The present invention, as main rust resisting pigment, makes full use of zinc flake using zinc flake and spherical zinc powder composite granule
Cathodic protection and shielding properties, play the synergistic effect of zinc flake and spherical zinc powder, improve zinc powder utilization rate, reduce zinc powder
Content.By the technical solution, zinc content can reduce 20wt% or so, substantially increase the utilization rate of zinc powder, save
Valuable zinc resource.
The present invention uses the preparation process of conbustion synthesis, and the hot epoxy reaction of magnesium to be burnt in carbon dioxide using magnesium will
Carbon in carbon dioxide gas restores, and produces the high-quality graphene with monoatomic layer or polyatom thickness degree, these
Graphene directly in ceramic powder Surface Creation, forms graphene/ceramic composite powder, which is answered with zinc flake
It closes, using zinc flake and the good shielding of graphene and electric conductivity, high-effect graphene film zinc heavy antisepsis can be prepared
Coating.
The present invention improves zinc powder utilization rate, and zinc content is made to be down to 20wt% or so, than traditional zinc-rich anticorrosive paint
Save 40% or more cost.
Detailed description of the invention
Fig. 1 is the reaction principle schematic diagram for preparing graphene ceramic composite；
Fig. 2 is the schematic diagram for preparing graphene ceramic composite reaction product；
Fig. 3 is the graphene scanning electron microscope (SEM) photograph being prepared；
Fig. 4 is the graphene transmission electron microscope picture being prepared；
Fig. 5 is the graphene transmission electron microscope electronic diffraction ring figure being prepared；
Fig. 6 is different aluminium oxide/magnesium powder ratio graphite ene product X-ray diffractogram；
Fig. 7 is the scanning electron microscope (SEM) photograph of graphene ceramic composite powder material.
Specific embodiment
A kind of compound zinc powder graphene coating, including base-material and curing agent；
Base-material is made of the raw material of following mass parts:
Curing agent is amine curing agent.
Preferably, in compound zinc powder graphene coating, the mass ratio of base-material and curing agent is (3~8): 1；Further preferably
, in compound zinc powder graphene coating, the mass ratio of base-material and curing agent is (4~6): 1.
Preferably, in base-material, the partial size of zinc flake is 10 μm~20 μm, and radius-thickness ratio is (35~45): 1, bulk density
For 1kg/L~2kg/L, specific surface area 1m2/ g~1.5m2/ g, oil absorption are 20mL/100g~25mL/100g.
Preferably, in base-material, the partial size of spherical zinc powder is 2 μm~4 μm, and radius-thickness ratio is (1~2): 1, bulk density is
2kg/L~3kg/L, specific surface area 0.2m2/ g~0.5m2/ g, oil absorption are 6mL/100g~7mL/100g.
Preferably, in base-material, graphene ceramic composite is the compound of graphene, magnesium aluminate spinel and aluminium oxide composition
Material.
Preferably, in base-material, graphene ceramic composite is led to using magnesium powder, alumina powder and carbon dioxide as raw material
Cross what combustion synthesis reaction was prepared.
Preferably, in base-material, active filler is talcum powder, lithopone, mica powder, blanc fixe, trbasic zinc phosphate, nanometer two
At least one of silica；Further, the partial size of active filler is 500~2000 mesh.
Preferably, in base-material, epoxy resin is E-51 epoxy resin, E-44 epoxy resin, E-20 epoxy resin, DER331
At least one of epoxy resin, DER671 epoxy resin, CYD011 epoxy resin.
Preferably, in base-material, diluent is dimethylbenzene, n-butanol, cyclohexanone, isophorone, methyl iso-butyl ketone (MIBK), second two
At least one of alcohol monobutyl ether, propylene glycol methyl ether acetate, benzyl alcohol.
Preferably, in base-material, auxiliary agent is at least one of levelling agent, coupling agent, dispersing agent, defoaming agent.
Further, levelling agent can be selected from organobentonite, fumed silica, polyethylene wax.
Further, coupling agent can be selected from KH550, KH560, KH570.
Further, dispersing agent can be selected from BYK110, BYK161, BYK170.
Further, defoaming agent can be selected from BYK054, BYK065, BYK021.
Preferably, curing agent is ethylenediamine, hexamethylene diamine, diethylenetriamine, triethylene tetramine, diethylaminopropylamine, isophthalic
At least one of diamines.
The preparation method of this compound zinc powder graphene coating, comprising the following steps:
1) graphene ceramic composite is prepared
First magnesium powder and alumina powder are uniformly mixed, then obtained mixed powder is placed in reactor, in carbon dioxide
Under atmosphere, it is powered and induces self-propagating combustion reaction, it is cooling, obtain graphene ceramic composite；
2) compound zinc powder graphene paint binder is prepared
First graphene ceramic composite, epoxy resin, diluent are mixed evenly, add active filler stirring
Uniformly, fineness≤50 μm are ground to, zinc flake is then added and spherical zinc powder stirs evenly, obtains compound zinc powder graphene and applies
Expect base-material；
3) compound zinc powder graphene coating is prepared
Compound zinc powder graphene paint binder and curing agent are mixed, stirs evenly, obtains compound zinc powder graphene coating.
Preferably, it prepares in graphene ceramic composite, the mass ratio of alumina powder and magnesium powder is (4~5): 1.
Preferably, it prepares in graphene ceramic composite, the partial size of magnesium powder is 90 μm~110 μm.
Preferably, it prepares in graphene ceramic composite, the partial size of alumina powder is 180nm~220nm.
Preferably, it prepares in graphene ceramic composite, mixing is specially that 40min~80min is mixed in ball grinder；
It is further preferred that mixing is specially to mix 60min in ball grinder.
Preferably, it prepares in graphene ceramic composite, mixed powder is placed in the graphite grinding tool of reactor and is carried out
Reaction.
Preferably, prepare in graphene ceramic composite, in reactor the pressure of carbon dioxide atmosphere be 0.4MPa~
0.6MPa；It is further preferred that the pressure of carbon dioxide atmosphere is 0.5MPa in reactor.
Preferably, it prepares in graphene ceramic composite, the induction self-propagating combustion reaction specially energization 40A that is powered~
The tungsten filament coil of 60A induces mixed powder and self-propagating combustion reaction occurs.
Preferably, it prepares in graphene ceramic composite, the temperature of self-propagating combustion reaction is 5000K~5200K.
Preferably, prepare in graphene ceramic composite, self-propagating combustion reaction reaction time be 30min~
45min。
The contents of the present invention are described in further detail below by way of specific embodiment.Raw material used in example
Unless otherwise specified, it can be obtained from routine business approach.
Prepare graphene ceramic composite embodiment:
Choosing average grain diameter is that 100 microns of magnesium powder and 200 nanometers of alumina powder mix 1 hour in ball grinder,
Alumina powder and the mass ratio of magnesium powder are 4:1 (i.e. M=4), and the graphite that uniformly mixed material powder is placed in reaction unit is ground
In tool, in the carbon dioxide gas of 0.5MPa, the tungsten filament coil of energization 50A induces magnesium powder and carbon dioxide generation in raw material
Self-propagating combustion reacts (5097K, 40min), after device is cooling, obtains the graphene composite powder of grey black.
Magnesium powder or alumina powder used is commercially available high purity powdered form, Mg content >=99.5wt% in magnesium powder,
Al in alumina powder2O3Content >=99.5wt%.
The reaction principle schematic diagram for preparing graphene ceramic composite is shown in that attached drawing 1, the schematic diagram of reaction product are shown in attached drawing
2。
Attached drawing 3 is the graphene scanning electron microscope (SEM) photograph being prepared.As can be seen from Figure 3 exist between graphene layer apparent
Gap avoids graphene during the preparation process between generally existing graphene sheet layer so that graphene sheet layer is disconnected from each other
Stacking and agglomeration.
Attached drawing 4 is the graphene transmission electron microscope picture being prepared.Attached drawing 5 is the graphene transmission electron microscope electronics being prepared
Diffraction ring figure.The graphene of transmission electron microscope pattern display preparation has significant drape characteristic, and electronic diffraction ring shows that its is high-quality
Flow characteristic.
It is prepared by the graphene and conventional oxidation reduction method that the present embodiment (M=4) is prepared by burning synthesis method
Obtained graphene carries out performance comparison, as a result can be shown in Table 1.
1 graphene performance comparison of table
| Graphene performance | Oxidation-reduction method preparation | The preparation of embodiment method |
| Conductivity (S/m) | 100-6500 | 13000 |
| Specific surface area (m2/g) | 30-350 | 709 |
| Oxygen content (wt, %) | 20-30 | 1.2 |
| Size (μm) | 5-10 | 5-10 |
As known from Table 1, the graphene that embodiment is prepared has high conductivity, high-ratio surface, high-purity.
It takes alumina powder and the mass ratio of magnesium powder is that 3:1,5:1,6:1,7:1 and 8:1 are compared, is i.e. the value of M point
It Wei 3,5,6,7 and 8.Different aluminium oxide/magnesium powder ratio graphite ene product X-ray diffractogram is shown in attached drawing 6.Calculation of thermodynamics table
It is bright, Mg/CO2The combustion reaction adiabatic temperature of system is up to 4700 DEG C.At such a temperature, the magnesia of generation can be with addition
Ceramic powder carries out solid phase reaction, generates complex phase ceramic structural material.It will be appreciated from fig. 6 that when the control of aluminium oxide/magnesium powder quality exists
When M is 4~5, synthesizing in ceramic product does not have magnesia, only magnesium aluminate spinel (MgAl2O4) and aluminium oxide composition, Ke Yizhi
It connects and is added in zinc alkene coating as composite ceramics filler.Pass through the proportion (mass ratio between regulation aluminium oxide and metal magnesium powder
M), the magnesia of generation can be changed into magnesium aluminate spinel at high temperature.Compound zinc powder graphene Paint Examples below
In, the value for choosing M is the 4 graphene ceramic composites being prepared.
Attached drawing 7 is the scanning electron microscope (SEM) photograph of graphene ceramic composite powder material.
Graphene of the invention is generated in ceramic powder surface in situ, is taken full advantage of magnesium powder and is reacted with carbon dioxide gas-solid
The compound feature of in-situ deposition realizes graphene with ceramic powder and uniformly mixes dispersion in minute yardstick, has good point
Dissipate stability.Graphene prepared by the present invention is few layer high-quality graphene of the number of plies at 3 layers to 5 layers, has high conductivity,
It is the desirable material of zinc alkene coating.The magnesium-aluminum spinel ceramic powder synthesized under high temperature can be added to painting directly as filler
In material, the addition of the ceramic packing in post-coatings preparation process is reduced, the production process of zinc alkene coating is optimized.
Prepare compound zinc powder graphene paint binder embodiment 1:
The compound zinc powder graphene paint binder of embodiment 1, is made of: zinc flake 15 raw material of following mass parts
Part；5 parts of spherical zinc powder；5 parts of graphene ceramic composite；15 parts of active filler；28 parts of epoxy resin；30 parts of diluent；Stream
1 part of flat agent, 1 part of dispersing agent.
The average grain diameter of zinc flake used is 15 μm, radius-thickness ratio 40:1, bulk density 1.5kg/L, specific surface area
For 1.2m2/ g, oil absorption 22mL/100g；The average grain diameter of spherical zinc powder used is 3 μm, radius-thickness ratio 1.5:1, accumulation
Density is 2.5kg/L, specific surface area 0.4m2/ g, oil absorption 6.5mL/100g；Active filler is talcum powder；Epoxy resin
For E-44 epoxy resin；Diluent is the mixed diluent that dimethylbenzene and n-butanol are formed with volume ratio 4:1；Levelling agent is organic
Bentonite, dispersing agent BYK110.
Compound zinc powder graphene paint binder preparation method is as follows, weighs raw material by composition, by graphene Ceramic Composite material
Material, epoxy resin, diluent are mixed evenly, and active filler is then added and stirs evenly, and being ground to fineness is 30 μm, then plus
Enter zinc flake and spherical zinc powder stirs evenly, obtains the compound zinc powder graphene paint binder of embodiment 1.
Prepare compound zinc powder graphene paint binder embodiment 2:
The compound zinc powder graphene paint binder of embodiment 2, is made of: zinc flake 18 raw material of following mass parts
Part；2 parts of spherical zinc powder；5 parts of graphene ceramic composite；15 parts of active filler；28 parts of epoxy resin；30 parts of diluent；Stream
1 part of flat agent, 1 part of defoaming agent.
Defoaming agent used is BYK054, remaining raw material and preparation method are identical as embodiment 1.
Prepare compound zinc powder graphene paint binder embodiment 3:
The compound zinc powder graphene paint binder of embodiment 3, active filler used are mica powder and nano silica
With the mixed fillers that mass ratio 4:1 is formed, epoxy resin is the mixed of 20 parts of E-44 epoxy resin and 8 parts of E-20 epoxy resin compositions
Close object.Remaining raw material and preparation method are identical as embodiment 1.
Prepare compound zinc powder graphene paint binder comparative example 1:
Zinc powder all zinc flakes (i.e. 20 mass parts that the compound zinc powder graphene paint binder of comparative example 1 is added
Zinc flake), remaining raw material and preparation method are identical as embodiment 1.
Prepare compound zinc powder graphene paint binder comparative example 2:
All spherical zinc powder (i.e. 20 mass parts of the zinc powder that the compound zinc powder graphene paint binder of comparative example 2 is added
Spherical zinc powder), remaining raw material and preparation method are identical as embodiment 1.
Prepare compound zinc powder graphene coating
By Examples 1 to 3 and the preparation-obtained base-material of comparative example 1~2 and triethylene tetramine curing agent with mass ratio 5:1
Mixing, stirs evenly, respectively obtains the compound zinc powder graphene coating of Examples 1 to 3 and the zinc powder graphite of comparative example 1~2
Alkene coating.
Coating is made in the zinc powder graphene coating that embodiment 1, comparative example 1 and comparative example 2 are prepared to test, institute
The project of detection presses the progress of state's calibration method, and testing result is as shown in table 2.
2 zinc powder graphene coating contrast test result of table
The present invention as main antirust filler, gives full play to cooperateing with for zinc flake and graphene microchip using zinc flake
Effect improves zinc powder utilization rate, zinc content can be made to be down to 20wt% or so, saves cost than traditional zinc-rich anticorrosive paint
40% or more.
Currently, scale up test is completed in the coating that embodiment 1 is prepared, table is detected through naval vessels coating inspection center
Bright, the graphene film spelter coating of zinc powder dosage 20%, 2400 hours salt spray tests compare traditional zinc-rich anticorrosion coat, have excellent
Resisting salt fog corrosion characteristic more, protective benefits improve 2 times.Product is carried out in December, 2017 in PCK steel pipe factory Zhuhai building site
Scene is on probation, and user's evaluation works well.
Claims (10)
1. a kind of compound zinc powder graphene coating, including base-material and curing agent, it is characterised in that:
Base-material is made of the raw material of following mass parts:
Curing agent is amine curing agent.
2. a kind of compound zinc powder graphene coating according to claim 1, it is characterised in that: the quality of base-material and curing agent
Than for (3~8): 1.
3. a kind of compound zinc powder graphene coating according to claim 2, it is characterised in that: in base-material, zinc flake
Partial size is 10 μm~20 μm；The partial size of spherical zinc powder is 2 μm~4 μm.
4. a kind of compound zinc powder graphene coating according to claim 2, it is characterised in that: in base-material, graphene ceramics
Composite material is the composite material of graphene, magnesium aluminate spinel and aluminium oxide composition.
5. a kind of compound zinc powder graphene coating according to claim 4, it is characterised in that: in base-material, graphene ceramics
Composite material is to be prepared using magnesium powder, alumina powder and carbon dioxide as raw material by combustion synthesis reaction.
6. a kind of compound zinc powder graphene coating according to claim 2, it is characterised in that: in base-material, active filler is
At least one of talcum powder, lithopone, mica powder, blanc fixe, trbasic zinc phosphate, nano silica.
7. a kind of compound zinc powder graphene coating according to claim 2, it is characterised in that: in base-material, epoxy resin is
E-51 epoxy resin, E-44 epoxy resin, E-20 epoxy resin, DER331 epoxy resin, DER671 epoxy resin, CYD011 ring
At least one of oxygen resin.
8. a kind of compound zinc powder graphene coating according to claim 2, it is characterised in that: in base-material, diluent two
Toluene, n-butanol, cyclohexanone, isophorone, methyl iso-butyl ketone (MIBK), ethylene glycol monobutyl ether, propylene glycol methyl ether acetate, benzyl alcohol
At least one of.
9. a kind of compound zinc powder graphene coating according to claim 2, it is characterised in that: in base-material, auxiliary agent is levelling
At least one of agent, coupling agent, dispersing agent, defoaming agent.
10. the preparation method of any one of the claim 1~9 compound zinc powder graphene coating, it is characterised in that: including following
Step:
1) graphene ceramic composite is prepared
First magnesium powder and alumina powder are uniformly mixed, then obtained mixed powder is placed in reactor, in carbon dioxide atmosphere
Under, it is powered and induces self-propagating combustion reaction, it is cooling, obtain graphene ceramic composite；
2) compound zinc powder graphene paint binder is prepared
First graphene ceramic composite, epoxy resin, diluent are mixed evenly, it is equal to add active filler stirring
It is even, fineness≤50 μm are ground to, zinc flake is then added and spherical zinc powder stirs evenly, obtains compound zinc powder graphene coating
Base-material；
3) compound zinc powder graphene coating is prepared
Compound zinc powder graphene paint binder and curing agent are mixed, stirs evenly, obtains compound zinc powder graphene coating.
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| CN110157301A (en) * | 2019-06-13 | 2019-08-23 | 江苏道蓬科技有限公司 | AB type graphene epoxy zinc-enriched paint and preparation method thereof |
| CN110760239A (en) * | 2019-11-05 | 2020-02-07 | 立邦工业涂料(上海)有限公司 | Composite nano material reinforced water-based epoxy primer and preparation method thereof |
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Application publication date: 20181204 |