CN108690463A - A kind of graphene epoxy heavy-duty anticorrosive coating and preparation method thereof - Google Patents
A kind of graphene epoxy heavy-duty anticorrosive coating and preparation method thereof Download PDFInfo
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- CN108690463A CN108690463A CN201810444414.1A CN201810444414A CN108690463A CN 108690463 A CN108690463 A CN 108690463A CN 201810444414 A CN201810444414 A CN 201810444414A CN 108690463 A CN108690463 A CN 108690463A
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
-
- 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 present invention relates to anticorrosive paint technology fields, specifically disclose a kind of graphene epoxy heavy-duty anticorrosive coating and preparation method thereof.The present invention includes component A and B component, it is characterised in that:The component A is counted in parts by weight, including following components:Epoxy resin:13-19 parts, environmentally friendly cosolvent:1-3 parts, Graphene powder:1-2 parts, ferrophosphorus powder:10-50 parts, zinc powder:25-30 parts, dispersant:0.5-1 parts, antifoaming agent:0.5-1 parts, anti-flash rusting auxiliary agent:0.2-0.3 parts;The B component is counted in parts by weight, including following components:Environmentally friendly cosolvent:1-3 parts, curing agent:8-10 parts.The product zinc content of the present invention is not higher than 30%, is more than solvent based coating performance in performances such as salt fog resistance, adhesive force.
Description
Technical field
The present invention relates to anticorrosive paint technology field more particularly to a kind of graphene epoxy heavy-duty anticorrosive coating and its preparation sides
Method.
Background technology
Along with the sustained and rapid development of China's economic for many years, China has become second-biggest-in-the-world economy, but also band
Carried out its huge anti-corrosion demand, especially in heavy antisepsis field, China still become maximum steel production in the world and
Using state, maximum Production Container state and exported country, maximum shipbuilding state, and the anti-corrosion of steel is that its use must
Consider, especially in marine anticorrosion.As the key areas of heavy antisepsis, container, ship, offshore set-up are mechanical, large size
The steel equipments such as bridge mostly use epoxy zinc-rich system to ensure its good corrosion resistance, to ensure its service life.
Therefore, heavy antisepsis field forms huge market, and production capacity gradually rose in recent years, especially in economy in 2008
After crisis, Chinese container and shipbuilding are in absolute leading position, and therefore, domestic heavy antisepsis market is huge.
However, with the tightening of environmental protection policy, solvent based coating etc. has the Coating Market of pollution smaller and smaller, replaces
Be environmental protection water paint.And the zinc powder being rich in water-thinned epoxy zinc-rich is larger to constructor's body harm, therefore, exploitation is low
Even heavy-duty aqueous coating of the zinc without zinc is just at the mission of contemporary China coating people.
Invention content
The problems such as excessively high for Zn content in existing water paint, the present invention provide a kind of graphene epoxy heavy-duty anticorrosive coating
And preparation method thereof.
And the present invention also provides a kind of preparation methods of graphene epoxy heavy-duty anticorrosive coating.
To achieve the above object of the invention, the embodiment of the present invention uses the following technical solution:
A kind of graphene epoxy heavy-duty anticorrosive coating, including component A and B component, the component A are counted in parts by weight, including
Following components:Epoxy resin:13-19 parts, environmentally friendly cosolvent:1-3 parts, Graphene powder:1-2 parts, ferrophosphorus powder:10-50 parts, zinc
Powder:25-30 parts, dispersant:0.5-1 parts, antifoaming agent:0.5-1 parts, anti-flash rusting auxiliary agent:0.2-0.3 parts, deionized water:1-6 parts;
The B component is counted in parts by weight, including following components:Environmentally friendly cosolvent:1-3 parts, curing agent:It 8-10 parts, goes
Ionized water:1-3 parts.
Compared with the existing technology, in graphene epoxy heavy-duty anticorrosive coating provided by the invention, zinc content is 30% or so,
The performances such as impact resistance, water resistance, temperature tolerance, scratch resistance, Storage period have reached the solvent type epoxy zinc-rich that Zn content is 80wt%
The performance of priming paint, while being that the solvent type of 80wt% is had excellent performance in adhesive force, salt fog resistance, anti-settling performance ratio Zn content,
And VOC content is low, is also free of heavy metal, is more favorable for health of human body.
Specifically, it is preferable that a kind of graphene epoxy heavy-duty anticorrosive coating, including component A and B component, the component A is by weight
Measure number meter, including following components:Epoxy resin:13.2 parts, environmentally friendly cosolvent:1.5 parts, Graphene powder:1 part, ferrophosphorus powder:50
Part, zinc powder:25 parts, dispersant:0.5 part, antifoaming agent:0.5 part, anti-flash rusting auxiliary agent:0.2 part, deionized water:3.9 part;
The B component is counted in parts by weight, including following components:Environmentally friendly cosolvent:1.5 parts, curing agent:8 parts, deionization
Water:1 part.
Preferably, the molecular weight of the epoxy resin is 2000-5000;The average functionality of the epoxy resin is 2.5-
4。
Epoxy resin selects low molecular weight and high molecular reactive, the energy fast reaction after curing agent contact, due to the position of water
Every effect, react not rapid between epoxy resin and curing agent in the presence of water, it is ensured that excellent construction pot-life,
After spraying finishes moisture evaporation, activated monomer undertakes reaction dissolvent, epoxy resin and the meeting fast reaction of curing agent activated monomer,
To the perfect adaptation on pot-life and construction efficiency.Further, low-molecular-weight epoxy resin is made by phase inversion technique,
Contain hydrophilic hydroxyl and ehter bond in its molecule simultaneously, can gather Quick cross-linking (keeping higher reactivity) at normal temperatures
It closes and forms fine and close reticular structure, interacting between molecule makes solvent not permeate effectively, to long in hot and humid environment
Phase use falls off without dissolving occurs.
Preferably, the environmentally friendly cosolvent is propylene glycol monomethyl ether, propandiol butyl ether, dipropylene glycol methyl ether, dipropylene glycol fourth
At least one of ether.
The conductivity of the Graphene powder is 49000-51000S/m.
Preferably, the antifoaming agent is one kind in mineral oil antifoam agent, silicon class antifoaming agent.
Mineral oil antifoam agent, silicon class antifoaming agent antifoaming speed are fast, the suds time is long, dispersion effect is good, stable in physicochemical property,
It is not reacted with substance generation in foaming system, does not influence product quality.
The anti-flash rusting auxiliary agent is the anti-flash rusting auxiliary agent of cationic salt.
Preferably, the dispersant is one kind in polyurethane dispersant, acrylic acid dispersant, alkynol dispersant.
The curing agent is one kind in fatty amine curing agent or polyamide curing agent.
Compared with the existing technology, the present invention uses the epoxy resin of low molecular weight and high molecular reactive for film forming matter, choosing
It is curing agent to select fatty amine curing agent or polyamide curing agent, epoxy resin after curing agent contact can fast reaction, while its
Contain hydrophilic hydroxyl and ehter bond in molecule, it can the formation of Quick cross-linking (keeping higher reactivity) polymerization at normal temperatures
Fine and close reticular structure, interacting between molecule makes solvent not permeate effectively, to be used for a long time in hot and humid environment
It falls off without dissolving occurs, ensures that coating has excellent adhesive force, while using mineral oil antifoam agent, silicon class antifoaming agent,
Reaction system is set to stablize, dispersion effect is good, is used in mixed way with ferrophosphorus powder using with excellent electric conductivity graphite powder, can be by phosphorus
The conductivity of iron powder is increased to the level of semiconductor, and under this conductivity, during coating use, the electrostatic of generation will be by very
Fast export, to prevent dangerous generation.
It mutually acts synergistically using between each components such as epoxy resin, curing agent, graphene in the present invention, reaches the present invention
Zinc content is below 30wt%, impact resistance 50kg in the graphene epoxy heavy-duty anticorrosive coating of offer, and adhesive force is 0 grade, resistance to
Aqueous 30d, salt fog resistance 2500h, VOC content 5%.
Further, the present invention also provides a kind of preparation methods of graphene epoxy heavy-duty anticorrosive coating, include at least following
Step:
Step a, each component is weighed according to above-mentioned raw material proportioning;
Step b, according to the proportioning of component A, by the epoxy resin, environmentally friendly cosolvent, dispersant, graphene, antifoaming agent,
Zinc powder, ferrophosphorus powder, anti-flash rusting auxiliary agent, deionized water carry out mixing treatment, obtain component A;
Step c, according to the proportioning of B component, the curing agent, environmentally friendly cosolvent, deionized water is subjected to mixing treatment, obtained
To B component processing.
Compared with the existing technology, the preparation method of graphene epoxy heavy-duty anticorrosive coating provided by the invention, preparation process letter
Single, process is easy to control, and is suitable for large-scale industrial production, and preserved in the form of component A, the two-component of B component, is extended and protect
Deposit the time.
Specifically, it is preferable that in the step b, the detailed process of mixing treatment is:The epoxy resin, environmental protection are helped
Solvent, deionized water stir 8-12min with the speed of 400-600rpm, add dispersant, graphene, antifoaming agent with 400-
The speed of 600rpm stirs 8-12min, adds zinc powder, ferrophosphorus powder and stirs 13-17min with the speed of 900-1100rpm, finally
Anti- flash rusting auxiliary agent is added, 8-12min is stirred with the speed of 900-1100rpm.
In mixed process, system viscosity is larger, with the stirring at low speed of 400-600rpm, it is not easy to bubble is stirred into system,
High-speed stirred is readily incorporated bubble, and when viscosity is big, bubble is not easy to be precipitated, and can influence filming performance, so epoxy resin, environmental protection
Cosolvent mixed process and be added dispersant, graphene, antifoaming agent mixed process in select low speed;Batch mixing stirs 900-
It is helped to disperse when the high-speed of 1100rpm, therefore zinc powder, the mixed process of ferrophosphorus powder and the anti-flash rusting auxiliary agent of addition is added
High-speed stirred is taken in mixed process.
Preferably, in the step c, the detailed process of mixing treatment is:By curing agent, environmentally friendly cosolvent, deionized water
13-17min is stirred with the speed of 400-600rpm.
In curing agent, environmentally friendly cosolvent mixed process, system viscosity is larger, with the stirring at low speed of 400-600rpm, does not allow
Bubble is easily stirred into system, high-speed stirred is readily incorporated bubble, and when viscosity is big, bubble is not easy to be precipitated, and can influence filming performance.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1
The embodiment of the present invention provides a kind of graphene epoxy heavy-duty anticorrosive coating, including component A and B component, the component A are pressed
Parts by weight meter, including following components:Epoxy resin:13.2 parts, environmentally friendly cosolvent:1.5 parts, Graphene powder:1 part, ferrophosphorus powder:
50 parts, zinc powder:25 parts, dispersant:0.5 part, antifoaming agent:0.5 part, anti-flash rusting auxiliary agent:0.2 part, deionized water:3.9 part;
The B component is counted in parts by weight, including following components:Environmentally friendly cosolvent:1.5 parts, curing agent:8 parts, deionization
Water:1 part.
Above-mentioned aqueous epoxy resins are AFG-90MH, and environmentally friendly cosolvent is that mass ratio is 1:1 propylene glycol monomethyl ether and the third two
The mixture of alcohol butyl ether, Graphene powder are selected from Chongqing Yuan Shi graphenes Technology Co., Ltd., and ferrophosphorus powder is selected from still promise chemical industry, dispersion
Agent is BYK190, and antifoaming agent is that mass ratio is 1:The mixture of 2 Tego902W and Tego810, anti-flash rusting auxiliary agent are ED617F,
Curing agent is 613 epoxy hardeners.
The preparation method of above-mentioned graphene epoxy heavy-duty anticorrosive coating, includes the following steps:
Step a, each component is weighed according to above-mentioned raw material proportioning;
Step b, according to the proportioning of component A, by the epoxy resin, environmentally friendly cosolvent, deionized water with the speed of 500rpm
Degree stirring 10min, adds dispersant, graphene, antifoaming agent and stirs 10min with the speed of 500rpm, add zinc powder, ferrophosphorus
Powder stirs 15min with the speed of 1000rpm, is eventually adding anti-flash rusting auxiliary agent and stirs 10min with the speed of 1000rpm, obtains A groups
Point;
Step c, according to the proportioning of B component, curing agent, environmentally friendly cosolvent, deionized water are stirred with the speed of 500rpm
15min obtains B component.
Embodiment 2
The embodiment of the present invention provides a kind of graphene epoxy heavy-duty anticorrosive coating, including component A and B component, the component A are pressed
Parts by weight meter, including following components:Epoxy resin:15 parts, environmentally friendly cosolvent:1 part, Graphene powder:2 parts, ferrophosphorus powder:40
Part, zinc powder:30 parts, dispersant:0.7 part, antifoaming agent:0.7 part, anti-flash rusting auxiliary agent:0.3 part, deionized water:1.5 part;
The B component is counted in parts by weight, including following components:Environmentally friendly cosolvent:3 parts, curing agent:10 parts, deionization
Water:1.5 part.
Above-mentioned aqueous epoxy resins are AFG-90MH, and environmentally friendly cosolvent is that mass ratio is 1:1:1 dipropylene glycol methyl ether, third
The mixture of glycol butyl ether and dipropylene, Graphene powder are selected from Chongqing Yuan Shi graphenes Technology Co., Ltd., ferrophosphorus powder
Selected from still promise chemical industry, dispersant BYK190, antifoaming agent is that mass ratio is 1:The mixture of 2 BYK024 and A10, anti-flash rusting help
Agent is ED617F, and curing agent is 350A epoxy hardeners.
The preparation method of above-mentioned graphene epoxy heavy-duty anticorrosive coating, includes the following steps:
Step a, each component is weighed according to above-mentioned raw material proportioning;
Step b, according to the proportioning of component A, by the epoxy resin, environmentally friendly cosolvent, deionized water with the speed of 400rpm
Degree stirring 12min, adds dispersant, graphene, antifoaming agent and stirs 8min with the speed of 600rpm, add zinc powder, ferrophosphorus
Powder stirs 13min with the speed of 1100rpm, is eventually adding anti-flash rusting auxiliary agent and stirs 12min with the speed of 900rpm, obtains A groups
Point;
Step c, according to the proportioning of B component, curing agent, environmentally friendly cosolvent, deionized water are stirred with the speed of 600rpm
13min obtains B component.
Embodiment 3
The embodiment of the present invention provides a kind of graphene epoxy heavy-duty anticorrosive coating, including component A and B component, the component A are pressed
Parts by weight meter, including following components:Epoxy resin:19 parts, environmentally friendly cosolvent:3 parts, Graphene powder:1.5 parts, ferrophosphorus powder:35
Part, zinc powder:28 parts, dispersant:1 part, antifoaming agent:1 part, anti-flash rusting auxiliary agent:0.25 part, deionized water:6 parts;
The B component is counted in parts by weight, including following components:Environmentally friendly cosolvent:1 part, curing agent:9 parts, deionization
Water:3 parts.
Above-mentioned aqueous epoxy resins are AFG-90MH, and environmentally friendly cosolvent is that mass ratio is 2:1 dipropylene glycol methyl ether and third
The mixture of glycol methyl ether, Graphene powder are selected from Chongqing Yuan Shi graphenes Technology Co., Ltd., and ferrophosphorus powder is selected from still promise chemical industry, point
Powder is BYK190, and antifoaming agent is that mass ratio is 2:The mixture of 1 BYK024 and Tego810, anti-flash rusting auxiliary agent are ED617F,
Curing agent is 350A epoxy hardeners.
The preparation method of above-mentioned graphene epoxy heavy-duty anticorrosive coating, includes the following steps:
Step a, each component is weighed according to above-mentioned raw material proportioning;
Step b, according to the proportioning of component A, by the epoxy resin, environmentally friendly cosolvent, deionized water with the speed of 600rpm
Degree stirring 8min, adds dispersant, graphene, antifoaming agent and stirs 12min with the speed of 400rpm, add zinc powder, ferrophosphorus
Powder stirs 17min with the speed of 900rpm, is eventually adding anti-flash rusting auxiliary agent and stirs 8min with the speed of 1100rpm, obtains A groups
Point;
Step c, according to the proportioning of B component, curing agent, environmentally friendly cosolvent, deionized water are stirred with the speed of 400rpm
17min obtains B component.
Comparative example 1
Selected from solvent type epoxy zinc rich primer, wherein Zn content is 80wt%.
In order to better illustrate the characteristic of graphene epoxy heavy-duty anticorrosive coating provided in an embodiment of the present invention, will implement below
The priming paint that graphene epoxy heavy-duty anticorrosive coating prepared by example 1,2,3 is provided with comparative example 1 takes 100g respectively, carries out performance detection,
Performance test results are as shown in table 1 below.
1 performance test results of table
Zinc content is below 30wt% in the graphene epoxy heavy-duty anticorrosive coating that embodiment 1-3 is provided, can from table 1
Go out, the performances such as graphene epoxy heavy-duty anticorrosive coating impact resistance provided by the invention, water resistance, temperature tolerance, scratch resistance, Storage period reach
The performance for the solvent type epoxy zinc rich primer that Zn content is 80wt% is arrived, while in adhesive force, salt fog resistance, anti-settling performance ratio
Zn content is that the solvent type of 80wt% is had excellent performance, and VOC content is low.
It constructs under conditions of 80 DEG C of temperature, relative humidity 50%, application is carried out by the way of brushing, is compared
For comparative example 1,1 levelling speed of embodiment provided by the invention is fast, and surface drying is fast, good moistening capacity;By the way of spraying into
Row application, for the comparative example that compares 1,1 spray efficiency of embodiment provided by the invention is high, and sagging is good, dispersion effect when spraying
Good, spraying is uniform, has reached solvent type effect, more preferably than solvent type, levelling is suitable for surface drying speed, it is most important that spraying is to people
Body is injured without chemistry.
Graphene epoxy heavy-duty anticorrosive coating heat storage half a month provided by the invention, gentle agitation can be uniform without apparent caking,
It is better than comparison solvent based product in anti-settling property.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (9)
1. a kind of graphene epoxy heavy-duty anticorrosive coating, including component A and B component, it is characterised in that:The component A is by weight
Number meter, including following components:Epoxy resin:13-19 parts, environmentally friendly cosolvent:1-3 parts, Graphene powder:1-2 parts, ferrophosphorus powder:10-
50 parts, zinc powder:25-30 parts, dispersant:0.5-1 parts, antifoaming agent:0.5-1 parts, anti-flash rusting auxiliary agent:0.2-0.3 parts, deionization
Water:1-6 parts;
The B component is counted in parts by weight, including following components:Environmentally friendly cosolvent:1-3 parts, curing agent:8-10 parts, deionization
Water:1-3 parts.
2. graphene epoxy heavy-duty anticorrosive coating as described in claim 1, including component A and B component, it is characterised in that:The A
Component is counted in parts by weight, including following components:Epoxy resin:13.2 parts, environmentally friendly cosolvent:1.5 parts, Graphene powder:1 part,
Ferrophosphorus powder:50 parts, zinc powder:25 parts, dispersant:0.5 part, antifoaming agent:0.5 part, anti-flash rusting auxiliary agent:0.2 part, deionized water:3.9
Part;
The B component is counted in parts by weight, including following components:Environmentally friendly cosolvent:1.5 parts, curing agent:8 parts, deionized water:1
Part.
3. such as claim 1-2 any one of them graphene epoxy heavy-duty anticorrosive coatings, it is characterised in that:The epoxy resin
Molecular weight is 2000-5000;And/or
The average functionality of the epoxy resin is 2.5-4.
4. such as claim 1-2 any one of them graphene epoxy heavy-duty anticorrosive coatings, it is characterised in that:The environmental protection cosolvent
For at least one of propylene glycol monomethyl ether, propandiol butyl ether, dipropylene glycol methyl ether, dipropylene;And/or
The conductivity of the Graphene powder is 49000-51000S/m.
5. such as claim 1-2 any one of them graphene epoxy heavy-duty anticorrosive coatings, it is characterised in that:The antifoaming agent is mine
One kind in object oil antifoaming agent, silicon class antifoaming agent;And/or
The anti-flash rusting auxiliary agent is the anti-flash rusting auxiliary agent of cationic salt.
6. such as claim 1-2 any one of them graphene epoxy heavy-duty anticorrosive coatings, it is characterised in that:The dispersant is poly-
One kind in urethane dispersant, acrylic acid dispersant, alkynol dispersant.
The curing agent is one kind in fatty amine curing agent or polyamide curing agent.
7. a kind of preparation method of graphene epoxy heavy-duty anticorrosive coating, it is characterised in that:It at least includes the following steps:
Step a, each component is weighed according to such as claim 1~6 any one of them raw material proportioning;
Step b, according to the proportioning of component A, by the epoxy resin, environmentally friendly cosolvent, dispersant, graphene, antifoaming agent, zinc
Powder, ferrophosphorus powder, anti-flash rusting auxiliary agent, deionized water carry out mixing treatment, obtain component A;
Step c, according to the proportioning of B component, the curing agent, environmentally friendly cosolvent, deionized water is subjected to mixing treatment, obtain B
Component processing.
8. the preparation method of graphene epoxy heavy-duty anticorrosive coating as claimed in claim 7, it is characterised in that:In the step b,
The detailed process of mixing treatment is:The epoxy resin, environmentally friendly cosolvent, deionized water are stirred with the speed of 400-600rpm
8-12min adds dispersant, graphene, antifoaming agent and stirs 8-12min with the speed of 400-600rpm, adds zinc powder, phosphorus
Iron powder stirs 13-17min with the speed of 900-1100rpm, is eventually adding anti-flash rusting auxiliary agent and is stirred with the speed of 900-1100rpm
8-12min。
9. the preparation method of graphene epoxy heavy-duty anticorrosive coating as claimed in claim 7, it is characterised in that:In the step c,
The detailed process of mixing treatment is:Curing agent, environmentally friendly cosolvent, deionized water are stirred into 13- with the speed of 400-600rpm
17min。
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| CN109456675A (en) * | 2018-10-31 | 2019-03-12 | 湖南航天三丰科工有限公司 | A kind of heat-insulated camouflage painting composite coating of watery anti-corrosion |
| CN110204997A (en) * | 2019-06-27 | 2019-09-06 | 江苏道蓬科技有限公司 | Graphene Epoxy sealer and preparation method thereof |
| CN110511647A (en) * | 2019-07-25 | 2019-11-29 | 河北晨阳工贸集团有限公司 | A kind of aqueous double-component epoxy anticorrosion primer and preparation method thereof |
| CN110878184A (en) * | 2019-10-15 | 2020-03-13 | 浙江衢州贝利德涂料有限公司 | Graphene modified epoxy zinc-rich primer and preparation method thereof |
| CN113956745A (en) * | 2021-11-01 | 2022-01-21 | 上海化学工业区公共管廊有限公司 | Weather-proof salt-mist corrosion-resistant coating with low VOC content, and preparation method and application thereof |
| CN116445056A (en) * | 2023-04-23 | 2023-07-18 | 上海德威涂料有限公司 | Corrosion-resistant powder coating capable of replacing zinc-rich powder coating and corrosion-resistant coating |
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