CN109627904A - A kind of selfreparing graphene zinc-rich anti-corrosive paint and preparation method thereof - Google Patents
A kind of selfreparing graphene zinc-rich anti-corrosive paint and preparation method thereof Download PDFInfo
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- CN109627904A CN109627904A CN201811318786.6A CN201811318786A CN109627904A CN 109627904 A CN109627904 A CN 109627904A CN 201811318786 A CN201811318786 A CN 201811318786A CN 109627904 A CN109627904 A CN 109627904A
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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
-
- 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
- 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
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The present invention discloses a kind of selfreparing graphene zinc-rich anti-corrosive paint, it is made of the raw material of following parts by weight: 25-40 parts of graphene suspension, 9-11 parts of epoxy resin, 45-50 parts of zinc powder, 4-6 parts of filler, 8-10 parts of auxiliary agent, 15-20 parts of curing agent, wherein, the graphene suspension is prepared by the following method to obtain: (1) being modified using silane coupling agent to graphene oxide, obtain modified graphene oxide；(2) preparation of graphene suspension: according to solid-liquid ratio 1g:400mL, modified graphene oxide being added in dimethylbenzene, ultrasonic disperse, cooled to room temperature, and ascorbic acid is added, stirs 4-7h at 40-60 DEG C.Selfreparing graphene zinc-rich anti-corrosive paint provided by the invention, good mechanical properties, antiseptic property is excellent, can reduce zinc content, can self-regeneration when crack occurs in coating.
Description
Technical field
The invention belongs to technical field of anticorrosion, and in particular to a kind of selfreparing graphene zinc-rich anti-corrosive paint and its preparation side
Method.
Background technique
Corrosion of metal is the process that metal material is damaged in the effect by surrounding medium.Corrosion is as a kind of slow
A kind of phenomenon of oxidation, is the loss and rotten immediate cause of metal, wherein corroding the intensity that can also reduce metal material, modeling
Property, the mechanical properties such as toughness, destruction is generated to the shape of metal component, its physical property is reduced, shortens the use of equipment
Service life, and will cause facility and the accidents such as collapse, explode.Anti-corrosion measure has electrochemical protection, changes metal interior structures, coating
Technology etc., wherein being a kind of simple and fast and economic method in metal surface brush coating.
Currently, common anticorrosive paint has epoxies, polyurethanes and zinc rich primer class etc. several, have to environment certain
Harm, handed over the zinc content of original text to obtain excellent antiseptic property in zinc rich primer class coating, but Zn content is high, not only
It is at high cost, and big amount zinc oxide fog can be generated in welding, certain harm is caused to operating personnel.
A kind of Two-dimensional Carbon nanometer material of the graphene as a kind of regular hexagon being made of carbon atom with sp2 hybridized orbit
Material has excellent mechanical property, electric property and high-specific surface area, can be used to reduce zinc powder in zinc-rich paint, but its
Bad dispersibility influences the antiseptic property and self-healing properties of final coating, can not be cured when seriously polluted and coating occurs damaged
It closes, accelerated corrosion.
Summary of the invention
In view of the drawbacks of the prior art, the present invention provides a kind of selfreparing graphene zinc-rich anti-corrosive paint and its preparation side
Method, the anticorrosive paint are added in primer base by pre-processing to graphene, improve the mechanics and antiseptic property of priming paint
With good effect, and occur will do it certain self-regeneration when fine crack.
A kind of selfreparing graphene zinc-rich anti-corrosive paint, is made of the raw material of following parts by weight: graphene suspension 25-40
Part, 9-11 parts of epoxy resin, 45-50 parts of zinc powder, 4-6 parts of filler, 8-10 parts of auxiliary agent, 15-20 parts of curing agent,
Wherein, the graphene suspension is prepared by the following method to obtain:
(1) graphene oxide is modified using silane coupling agent, obtains modified graphene oxide；
(2) preparation of graphene suspension: according to solid-liquid ratio 1g:400mL, modified graphene oxide being added in dimethylbenzene,
The Vitamin C of 20 times of quality of modified graphene oxide is added in the ultrasonic disperse 20min under the frequency of 2MHz, cooled to room temperature
Acid stirs 6h at 50 DEG C.
Preferably, the operation being modified using silane coupling agent to graphene oxide in step (1) is specific as follows: according to
Solid-liquid ratio 1g:1000mL, adds graphene oxide into dehydrated alcohol, stirring, the ultrasonic disperse under the frequency of 1.5MHz
30min, the temperature for then controlling reaction system is 10 DEG C, obtains graphene oxide dispersion；According to volume ratio 1:15, by γ-
20min is mixed in methacryloxypropyl trimethoxy silane and deionized water, increases H+Concentration is to 10-2Mol/L is obtained
Silane coupling agent after to hydrolysis；Silane coupling agent after graphene oxide dispersion and hydrolysis is mixed according to volume ratio 20:3
It closes, is then stirred to react 2h under conditions of 75 DEG C, 500r/min, then by being centrifuged, washing, filter, at 40~50 DEG C
Vacuum drying obtains modified graphene oxide.
Preferably, the epoxy resin is bisphenol A type epoxy resin, in bisphenol f type epoxy resin, organosilicon epoxy resin
Any one.
Preferably, the filler is the iron oxide red and bentonitic mixture that mass ratio is 50:3.
Preferably, the auxiliary agent is 2513 HP, 1- methoxy-2-propanol of Cardolite Lite, one in dimethylbenzene
Kind is any several.
Preferably, the curing agent is one of Ancamide 3015, Cardolite NC 562, dimethylbenzene or appoints
It anticipates several.
The preparation method of above-mentioned selfreparing graphene zinc-rich anti-corrosive paint, comprising the following steps:
(1) graphene suspension is prepared；
(2) preparation of zinc rich primer: epoxy resin and auxiliary agent are mixed, and are stirred 10min, are then sequentially added filler and zinc powder,
1-2h is stirred under 50 DEG C, the revolving speed of 2000rpm, curing agent is then added, is mixed, obtains zinc rich primer；
(3) graphene suspension is added in zinc rich primer, it is stirring while adding.
The graphene oxide that the present invention uses is averaged piece diameter 10nm, and the number of plies is less than 10 layers.
Increase H of the present invention+Concentration is to 10-2Mol/L uses the prior art, for example, HCl, which is added, increases H+Concentration
To 10-2mol/L。
The application method of selfreparing graphene zinc-rich anti-corrosive paint provided by the invention, is coated in metal surface, and coating is thick
Degree is 60~90 μm.
Advantages of the present invention:
Selfreparing graphene zinc-rich anti-corrosive paint provided by the invention, modified to graphene oxide, graphene divides in coating
It dissipates that performance is good, and the anticorrosive paint good mechanical properties of preparation, antiseptic property is excellent, can reduce zinc content, coating is thick when use
Degree is 60~90 μm, when micro-crack occurs in coating, Zn in crackle2+Concentration increases, with electronegative zinc powder and graphene nano grain
Son attracts each other, and is gradually gathered in micro-crack, finally crams crackle, shows self-repair function, so, it is split in coating
It can self-regeneration when seam.
Specific embodiment
The graphene oxide that the present invention uses is averaged piece diameter 10nm, and the number of plies is less than 10 layers.
Embodiment 1
1. a kind of selfreparing graphene zinc-rich anti-corrosive paint, is made of the raw material of following parts by weight: 25 parts of graphene suspension,
9 parts of epoxy resin, 45 parts of zinc powder, 4 parts of filler, 8 parts of auxiliary agent, 15 parts of curing agent,
Wherein, the epoxy resin is bisphenol A type epoxy resin；
The filler is the iron oxide red that mass ratio is 50:3 and bentonitic mixture；
The auxiliary agent is 2513 HP of Cardolite Lite；
The curing agent is Ancamide 3015；
The graphene suspension is prepared by the following method to obtain:
(1) graphene oxide is modified using silane coupling agent, it is specific as follows: according to solid-liquid ratio 1g:1000mL, will to aoxidize
Graphene is added in dehydrated alcohol, stirring, then the ultrasonic disperse 30min under the frequency of 1.5MHz controls reaction system
Temperature is 10 DEG C, obtains graphene oxide dispersion；According to volume ratio 1:15, by γ-methacryloxypropyl trimethoxy
20min is mixed in base silane and deionized water, increases H+Concentration is to 10-2Mol/L, the silane coupling agent after being hydrolyzed；It will
Silane coupling agent after graphene oxide dispersion and hydrolysis is mixed according to volume ratio 20:3, then in 75 DEG C, 500r/min
Under the conditions of be stirred to react 2h, then by centrifugation, washing, filtering, the vacuum drying at 40 DEG C, obtain modified graphene oxide；
(2) preparation of graphene suspension: according to solid-liquid ratio 1g:400mL, modified graphene oxide being added in dimethylbenzene,
The Vitamin C of 20 times of quality of modified graphene oxide is added in the ultrasonic disperse 20min under the frequency of 2MHz, cooled to room temperature
Acid stirs 6h at 50 DEG C.
2. the preparation method of above-mentioned selfreparing graphene zinc-rich anti-corrosive paint, comprising the following steps:
(1) graphene suspension is prepared；
(2) preparation of zinc rich primer: epoxy resin and auxiliary agent are mixed, and are stirred 10min, are then sequentially added filler and zinc powder,
1.5h is stirred under 50 DEG C, the revolving speed of 2000rpm, curing agent is then added, is mixed, obtains zinc rich primer；
(3) graphene suspension is added in zinc rich primer, it is stirring while adding.
Embodiment 2
1. a kind of selfreparing graphene zinc-rich anti-corrosive paint, is made of the raw material of following parts by weight: 40 parts of graphene suspension,
11 parts of epoxy resin, 50 parts of zinc powder, 6 parts of filler, 10 parts of auxiliary agent, 20 parts of curing agent,
Wherein, the epoxy resin is bisphenol f type epoxy resin；
The filler is the iron oxide red that mass ratio is 50:3 and bentonitic mixture；
The auxiliary agent is 1- methoxy-2-propanol；
The curing agent is Cardolite NC 562；
The graphene suspension is prepared by the following method to obtain:
(1) graphene oxide is modified using silane coupling agent, it is specific as follows: according to solid-liquid ratio 1g:1000mL, will to aoxidize
Graphene is added in dehydrated alcohol, stirring, then the ultrasonic disperse 30min under the frequency of 1.5MHz controls reaction system
Temperature is 10 DEG C, obtains graphene oxide dispersion；According to volume ratio 1:15, by γ-methacryloxypropyl trimethoxy
20min is mixed in base silane and deionized water, increases H+Concentration is to 10-2Mol/L, the silane coupling agent after being hydrolyzed；It will
Silane coupling agent after graphene oxide dispersion and hydrolysis is mixed according to volume ratio 20:3, then in 70 DEG C, 500r/min
Under the conditions of be stirred to react 2h, then by centrifugation, washing, filtering, the vacuum drying at 50 DEG C, obtain modified graphene oxide；
(2) preparation of graphene suspension: according to solid-liquid ratio 1g:400mL, modified graphene oxide being added in dimethylbenzene,
The Vitamin C of 20 times of quality of modified graphene oxide is added in the ultrasonic disperse 20min under the frequency of 2MHz, cooled to room temperature
Acid stirs 7h at 40 DEG C.
2. the preparation method of above-mentioned selfreparing graphene zinc-rich anti-corrosive paint, comprising the following steps:
(1) graphene suspension is prepared；
(2) preparation of zinc rich primer: epoxy resin and auxiliary agent are mixed, and are stirred 10min, are then sequentially added filler and zinc powder,
2h is stirred under 50 DEG C, the revolving speed of 2000rpm, curing agent is then added, is mixed, obtains zinc rich primer；
(3) graphene suspension is added in zinc rich primer, it is stirring while adding.
Embodiment 3
1. a kind of selfreparing graphene zinc-rich anti-corrosive paint, is made of the raw material of following parts by weight: 30 parts of graphene suspension,
10 parts of epoxy resin, 48 parts of zinc powder, 5 parts of filler, 9 parts of auxiliary agent, 18 parts of curing agent,
Wherein, the epoxy resin is organosilicon epoxy resin；
The filler is the iron oxide red that mass ratio is 50:3 and bentonitic mixture；
The auxiliary agent is dimethylbenzene；
The curing agent is dimethylbenzene；
The graphene suspension is prepared by the following method to obtain:
(1) graphene oxide is modified using silane coupling agent, it is specific as follows: according to solid-liquid ratio 1g:1000mL, will to aoxidize
Graphene is added in dehydrated alcohol, stirring, then the ultrasonic disperse 30min under the frequency of 1.5MHz controls reaction system
Temperature is 10 DEG C, obtains graphene oxide dispersion；According to volume ratio 1:15, by γ-methacryloxypropyl trimethoxy
20min is mixed in base silane and deionized water, increases H+Concentration is to 10-2Mol/L, the silane coupling agent after being hydrolyzed；It will
Silane coupling agent after graphene oxide dispersion and hydrolysis is mixed according to volume ratio 20:3, then in 80 DEG C, 500r/min
Under the conditions of be stirred to react 2h, then by centrifugation, washing, filtering, the vacuum drying at 45 DEG C, obtain modified graphene oxide；
(2) preparation of graphene suspension: according to solid-liquid ratio 1g:400mL, modified graphene oxide being added in dimethylbenzene,
The Vitamin C of 20 times of quality of modified graphene oxide is added in the ultrasonic disperse 20min under the frequency of 2MHz, cooled to room temperature
Acid stirs 4h at 60 DEG C.
2. the preparation method of above-mentioned selfreparing graphene zinc-rich anti-corrosive paint, comprising the following steps:
(1) graphene suspension is prepared；
(2) preparation of zinc rich primer: epoxy resin and auxiliary agent are mixed, and are stirred 10min, are then sequentially added filler and zinc powder,
1h is stirred under 50 DEG C, the revolving speed of 2000rpm, curing agent is then added, is mixed, obtains zinc rich primer；
(3) graphene suspension is added in zinc rich primer, it is stirring while adding.
Embodiment 4
1. a kind of selfreparing graphene zinc-rich anti-corrosive paint, is made of the raw material of following parts by weight: 30 parts of graphene suspension,
10 parts of epoxy resin, 48 parts of zinc powder, 5 parts of filler, 9 parts of auxiliary agent, 18 parts of curing agent,
Wherein, the epoxy resin is organosilicon epoxy resin；
The filler is the iron oxide red that mass ratio is 50:3 and bentonitic mixture；
The auxiliary agent is the mixing of Cardolite Lite 2513 HP, 1- methoxy-2-propanol, dimethylbenzene of same volume
Object；
The curing agent is the mixture of the Ancamide 3015 of same volume, Cardolite NC 562, dimethylbenzene；
The graphene suspension is prepared by the following method to obtain:
(1) graphene oxide is modified using silane coupling agent, it is specific as follows: according to solid-liquid ratio 1g:1000mL, will to aoxidize
Graphene is added in dehydrated alcohol, stirring, then the ultrasonic disperse 30min under the frequency of 1.5MHz controls reaction system
Temperature is 10 DEG C, obtains graphene oxide dispersion；According to volume ratio 1:15, by γ-methacryloxypropyl trimethoxy
20min is mixed in base silane and deionized water, increases H+Concentration is to 10-2Mol/L, the silane coupling agent after being hydrolyzed；It will
Silane coupling agent after graphene oxide dispersion and hydrolysis is mixed according to volume ratio 20:3, then in 80 DEG C, 500r/min
Under the conditions of be stirred to react 2h, then by centrifugation, washing, filtering, the vacuum drying at 45 DEG C, obtain modified graphene oxide；
(2) preparation of graphene suspension: according to solid-liquid ratio 1g:400mL, modified graphene oxide being added in dimethylbenzene,
The Vitamin C of 20 times of quality of modified graphene oxide is added in the ultrasonic disperse 20min under the frequency of 2MHz, cooled to room temperature
Acid stirs 4h at 60 DEG C.
2. the preparation method of above-mentioned selfreparing graphene zinc-rich anti-corrosive paint, with embodiment 3.
Embodiment 5
1. a kind of selfreparing graphene zinc-rich anti-corrosive paint, is made of the raw material of following parts by weight: 30 parts of graphene suspension,
10 parts of epoxy resin, 48 parts of zinc powder, 5 parts of filler, 9 parts of auxiliary agent, 18 parts of curing agent,
Wherein, the epoxy resin be mass ratio be 1:1 bisphenol A type epoxy resin, bisphenol f type epoxy resin；
The filler is the iron oxide red that mass ratio is 50:3 and bentonitic mixture；
The auxiliary agent is the mixture of 2513 HP, 1- methoxy-2-propanol of Cardolite Lite of same volume；
The curing agent is the mixture of the Ancamide 3015 of same volume, Cardolite NC 562；
The graphene suspension is the same as embodiment 3.
2. the preparation method of above-mentioned selfreparing graphene zinc-rich anti-corrosive paint, with embodiment 3.
Comparative example 1
1. a kind of selfreparing graphene zinc-rich anti-corrosive paint, is made of the raw material of following parts by weight: 30 parts of graphene suspension,
10 parts of epoxy resin, 48 parts of zinc powder, 5 parts of filler, 9 parts of auxiliary agent, 18 parts of curing agent,
Wherein, the epoxy resin is organosilicon epoxy resin；
The filler is the iron oxide red that mass ratio is 50:3 and bentonitic mixture；
The auxiliary agent is dimethylbenzene；
The curing agent is dimethylbenzene；
The graphene suspension is prepared by the following method to obtain: according to solid-liquid ratio 1g:400mL, by graphene oxide
It is added in dimethylbenzene, ultrasonic disperse 20min, cooled to room temperature under the frequency of 2MHz.
2. the preparation method of above-mentioned selfreparing graphene zinc-rich anti-corrosive paint, comprising the following steps:
(1) graphene suspension is prepared；
(2) preparation of zinc rich primer: epoxy resin and auxiliary agent are mixed, and are stirred 10min, are then sequentially added filler and zinc powder,
1h is stirred under 50 DEG C, the revolving speed of 2000rpm, curing agent is then added, is mixed, obtains zinc rich primer；
(3) graphene suspension is added in zinc rich primer, it is stirring while adding.
One, performance detection
1. the selfreparing graphene zinc-rich anti-corrosive paint that embodiment 1-5 and comparative example 1 are provided is detected, Testing index
With the results are shown in Table 1.
1 testing result of table
Wherein, water absorption rate=, whereinm t For the weight after for 24 hours, m 0 For the weight after for 24 hours；
The back side in impact resistance refers to the side contacted in coating with metal tinplate, another side that is positive then being coating.
2. self-healing properties detect
The selfreparing graphene zinc-rich anti-corrosive paint of embodiment 1-5 and comparative example 1, coating thickness is 90 μm, when there is crack, real
The selfreparing time for applying a 1-5 is 19h, and the selfreparing time of comparative example 1 is 27 h.
Claims (7)
1. a kind of selfreparing graphene zinc-rich anti-corrosive paint, it is characterised in that: be made of the raw material of following parts by weight:
25-40 parts of graphene suspension, 9-11 parts of epoxy resin, 45-50 parts of zinc powder, 4-6 parts of filler, 8-10 parts of auxiliary agent, solidification
15-20 parts of agent,
Wherein, the graphene suspension is prepared by the following method to obtain:
(1) graphene oxide is modified using silane coupling agent, obtains modified graphene oxide；
(2) preparation of graphene suspension: according to solid-liquid ratio 1g:400mL, modified graphene oxide being added in dimethylbenzene,
The Vitamin C of 20 times of quality of modified graphene oxide is added in the ultrasonic disperse 20min under the frequency of 2MHz, cooled to room temperature
Acid stirs 4-7h at 40-60 DEG C.
2. selfreparing graphene zinc-rich anti-corrosive paint according to claim 1, it is characterised in that: use silane in step (1)
The operation that coupling agent is modified graphene oxide is specific as follows: according to solid-liquid ratio 1g:1000mL, adding graphene oxide into
Into dehydrated alcohol, stirring, the ultrasonic disperse 30min under the frequency of 1.5MHz, the temperature for then controlling reaction system is 10 DEG C,
Obtain graphene oxide dispersion；According to volume ratio 1:15, by γ-methacryloxypropyl trimethoxy silane and go from
20min is mixed in sub- water, increases H+Concentration is to 10-2Mol/L, the silane coupling agent after being hydrolyzed；By graphene oxide point
Silane coupling agent after dispersion liquid and hydrolysis is mixed according to volume ratio 20:3, is then stirred under conditions of 70-80 DEG C, 500r/min
2h is reacted, then by centrifugation, washing, filtering, the vacuum drying at 40~50 DEG C, obtains modified graphene oxide.
3. selfreparing graphene zinc-rich anti-corrosive paint according to claim 1 or claim 2, it is characterised in that: the epoxy resin is
Bisphenol A type epoxy resin, bisphenol f type epoxy resin, any one in organosilicon epoxy resin.
4. selfreparing graphene zinc-rich anti-corrosive paint according to claim 1 or claim 2, it is characterised in that: the filler is quality
Than for 50:3 iron oxide red and bentonitic mixture.
5. selfreparing graphene zinc-rich anti-corrosive paint according to claim 1 or claim 2, it is characterised in that: the auxiliary agent is
One of 2513 HP, 1- methoxy-2-propanol of Cardolite Lite, dimethylbenzene are any several.
6. selfreparing graphene zinc-rich anti-corrosive paint according to claim 1 or claim 2, it is characterised in that: the curing agent is
One of Ancamide 3015, Cardolite NC 562, dimethylbenzene are any several.
7. the preparation method of selfreparing graphene zinc-rich anti-corrosive paint as claimed in claim 1 or 2, it is characterised in that: including following
Step:
(1) graphene suspension is prepared；
(2) preparation of zinc rich primer: epoxy resin and auxiliary agent are mixed, and are stirred 10min, are then sequentially added filler and zinc powder,
1-2h is stirred under 50 DEG C, the revolving speed of 2000rpm, curing agent is then added, is mixed, obtains zinc rich primer；
(3) graphene suspension is added in zinc rich primer, it is stirring while adding.
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| CN110128916A (en) * | 2019-05-31 | 2019-08-16 | 四川轻化工大学 | A kind of preparation method of graphene/epoxy flake anticorrosive paint |
| CN110218505A (en) * | 2019-06-27 | 2019-09-10 | 江苏道蓬科技有限公司 | One-component graphene anticorrosive paint and preparation method thereof |
| CN111718636A (en) * | 2020-06-28 | 2020-09-29 | 广州集泰化工股份有限公司 | Water-based epoxy low-zinc primer and preparation method thereof |
| CN112239625A (en) * | 2020-09-25 | 2021-01-19 | 上海大学 | Silicon dioxide-graphene oxide/polyurethane acrylic resin anticorrosion coating |
| CN113512351A (en) * | 2021-09-15 | 2021-10-19 | 广东大自然家居科技研究有限公司 | Water-based self-repairing wood paint and preparation method thereof |
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| CN113831825A (en) * | 2021-08-23 | 2021-12-24 | 武汉科技大学 | Self-repairing waterborne polyurethane anticorrosive paint and preparation method thereof |
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Application publication date: 20190416 |