CN106752672A - One kind is based on the enhanced water-base epoxy dust primer of Graphene and its production method - Google Patents
One kind is based on the enhanced water-base epoxy dust primer of Graphene and its production method Download PDFInfo
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- CN106752672A CN106752672A CN201611008765.5A CN201611008765A CN106752672A CN 106752672 A CN106752672 A CN 106752672A CN 201611008765 A CN201611008765 A CN 201611008765A CN 106752672 A CN106752672 A CN 106752672A
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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
- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The present invention relates to technical field of coatings, there is provided a kind of based on the enhanced water-base epoxy dust primer of Graphene, solve dispersion and stable problem of the Graphene in aqueous epoxy coating, greatly improve the Corrosion Protection of the coating, improve zinc powder utilization rate, the consumption of metal zinc resource is saved, is made up of component one and component two, the component one is made up of each raw material of following weight portion：The weight portion of modified amine curing agent 3~10, the weight portion of solvent 3~5, the weight portion of dispersant 0.1~1, the weight portion of filler 0~30, the weight portion of zinc powder 20~85, the weight portion of auxiliary rheological agents 1~2, the weight portion of Graphene 0.1~1, the weight portion of dehydrating agent 0.5~1；The component two is made up of each raw material of following weight portion：The weight portion of epoxy emulsion 60~80, the weight portion of defoamer 0.1~0.5, the weight portion of wetting agent 0.1~0.5, the weight portion of water 0~20, the weight portion of flash rust inhibitor 1~5.
Description
Technical field
The present invention relates to technical field of coatings, more particularly to it is a kind of based on the enhanced water-base epoxy dust primer of Graphene and
Its production method.
Background technology
Dust primer with excellent Corrosion Protection because being widely used in the anti-of all trades and professions steel iron facilities and equipment
Rotten application, its effect is the corrosion that metallic zinc delays steel as anode release electronics when corrosion occurs.Recently as environmental protection
The requirement of regulation and the raising of people's environmental consciousness, water-based epoxy zinc-rich primer application field expand, and progressively substitute traditional
Solvent type epoxy zinc rich primer, to reduce the discharge of VOC.
Water-based epoxy zinc-rich primer is as traditional solvent-borne epoxy zinc rich primer, it is necessary to add substantial amounts of zinc powder as anti-
Corrosion filler can just play preferable Corrosion Protection, and the product equally exists zinc powder utilization rate is low, metallic zinc failure is too fast etc.
Problem, causes the waste of metal zinc resource.To improve the utilization rate of metallic zinc in dust primer, improve the anticorrosion of its coating
Performance, has carried out substantial amounts of research work both at home and abroad, and aluminium powder, conductive mica powder, electrically conductive graphite, stone are added such as in dust primer
The materials such as black alkene, conductive black improve zinc powder utilization rate, improve the Corrosion Protection of coating, and reduce zinc powder consumption etc..
At present, domestic Graphene be applied to water-based epoxy zinc-rich primer research be in the starting stage, there is no product large-scale production and
That dispersion and stabilization of the Graphene in water paint are difficult using, subject matter, easily occur to reunite during storage use and
Flocculation, reduces the using effect of this material, or even the Graphene failure in coating storage process；To the piece footpath point of Graphene
Cloth, electric conductivity etc. do not carry out reasonable selection, influence the compactness and shield effectiveness of coating, it is impossible to improve the anti-corrosion of zinc rich primer
Corrosion energy, or even accelerate coating failure because volume resistance is too low.
The content of the invention
Therefore, for above content, the present invention provides a kind of based on the enhanced water-base epoxy dust primer of Graphene, solves
Dispersion and stable problem of the Graphene in aqueous epoxy coating, greatly improve the Corrosion Protection of the coating, improve zinc powder
Utilization rate, saves the consumption of metal zinc resource, while there is good bin stability, mechanical property and workability, in addition,
A kind of production method based on the enhanced water-base epoxy dust primer of Graphene is also provided.
To reach above-mentioned purpose, the present invention is achieved by the following technical solutions：One kind is based on the enhanced water of Graphene
Property epoxy dust primer, is made up of component one and component two, and the component one is made up of each raw material of following weight portion：
The weight portion of modified amine curing agent 3~10
The weight portion of solvent 3~5
The weight portion of dispersant 0.1~1
The weight portion of filler 0~30
The weight portion of zinc powder 20~85
The weight portion of auxiliary rheological agents 1~2
The weight portion of Graphene 0.1~1
The weight portion of dehydrating agent 0.5~1；
The component two is made up of each raw material of following weight portion：
The weight portion of epoxy emulsion 60~80
The weight portion of defoamer 0.1~0.5
The weight portion of wetting agent 0.1~0.5
The weight portion of water 0~20
The weight portion of flash rust inhibitor 1~5.
Further improving is：The modified amine curing agent is not aqueous, and containing organic solvent that can be molten altogether with water, quality is solid
Content is 60~80%, and active hydrogen equivalent weight is 200~400.
Further improving is：A diameter of 2~30 microns of the graphene sheet layer, the number of plies≤10 layer, oxygen content is less than
15%.
Further improving is：The dispersant is any one in the high-molecular block copolymer of amino-contained or carboxyl
Or it is two or more with any mixture than mixing.
Further improving is：Described filler is any one in talcum powder, silicon powder, silica flour or ferrophosphorus powder or two
With any mixture than mixing more than kind.
Further improving is：The auxiliary rheological agents are in aerosil, organobentonite, modified polyurethane urea
Any one is two or more with any mixture than mixing.
Further improving is：The epoxide number of the solid constituent of the epoxy emulsion is 0.2~0.3.
A kind of preparation method based on the enhanced water-base epoxy dust primer of Graphene, including component one preparation and component
Two preparation and the step of mix component one and component two, the preparation method of the component one is comprised the following steps：
(1) material is prepared by the weight portion of above-mentioned each component；
(2) stone is slowly uniformly added under stirring by modified amine curing agent, solvent, dispersant addition a mixing bowl in order
Black alkene, is uniformly dispersed at a high speed.
(3) above material is ground using grinder, fineness of grind≤20 micron, viscosity≤120 second, (applies -4
Cup), obtain graphene dispersion body.
(4) the graphene dispersion body after grinding is added in a mixing bowl, opens stirring at low speed, controlled in 300~500r/
Min, is dividedly in some parts other coating and stirs, and is stirred 30 minutes after adding；
(5) product is detected, detects qualified rear filtering, packaging；Filter screen mesh number is 120~150 mesh；
The preparation method of the component two is：
(1) material is prepared by above-mentioned each component weight portion；
(2) stirred in epoxy emulsion, water, defoamer, wetting agent, flash rust inhibitor addition a mixing bowl in order.
Further improving is：The component one and component two are prepared into film after mixing, film coated surface resistance is 106~
1012Ω。
By using preceding solution, the beneficial effects of the invention are as follows：Watersoluble plumbago alkene epoxy zinc powder bottom of the invention
Paint be a kind of metal Zn content from 30%~80% serial Waterborne epoxy anti-corrosion coating, with traditional water-based epoxy zinc-rich primer
Compare, the Corrosion Protection of coating can be greatly improved in same metal Zn content, salt tolerant when its metal Zn content is 60%
Mist performance (cut salt mist experiment is with reference to HG/T3668-2009 standards) is more than 1500 hours, is traditional 60% metal Zn content water
More than 2 times of property epoxy zinc rich primer salt spray resistance；60% metal Zn content biography is can reach during its metal Zn content 40%
The salt spray resistance of system water-based epoxy zinc-rich primer.The present invention can improve the Corrosion Protection of water-thinned epoxy zinc-rich coating, also may be used
Reduce the consumption of zinc powder in coating, the consumption and waste of the effectively save metal zinc resource of energy.The present invention realizes Graphene in water
Application in property epoxy zinc powder coating.Answered by selecting the selection in suitable sheets footpath, the graphene powder of oxygen content and dispersant
With and dispersing technology, solve the dispersion of Graphene and the stable problem in aqueous epoxy coating, make Graphene in the product
In can substantially and securely play a role, product within the storage period of 6 months property retention stabilization.
Specific embodiment
Describe embodiments of the present invention in detail below with reference to specific embodiment, how skill is applied to the present invention whereby
Art means solve technical problem, and reach the implementation process of technique effect and can fully understand and implement according to this.
If not specializing, the conventional hand that the technological means employed in embodiment is well known to those skilled in the art
Section, the reagent and product for being used also are available commercial.The source of agents useful for same, trade name and it is necessary to list it
Constituent person, indicates when occurring first.
Embodiment one
One kind is based on the enhanced water-base epoxy dust primer of Graphene, is made up of component one and component two, the component one
It is made up of each raw material of following weight portion：
The weight portion of modified amine curing agent 3
The weight portion of solvent 3
The weight portion of high-molecular block copolymer 0.1 of amino-contained
The weight portion of talcum powder 5
The weight portion of zinc powder 20
The weight portion of aerosil 1
The weight portion of Graphene 0.1
The weight portion of dehydrating agent 0.5；
The component two is made up of each raw material of following weight portion：
The weight portion of epoxy emulsion 60
The weight portion of defoamer 0.1
The weight portion of wetting agent 0.1
The weight portion of water 5
The weight portion of flash rust inhibitor 1.
Wherein, the modified amine curing agent is not aqueous, and containing propylene glycol monomethyl ether, quality solid content is 60%, active hydrogen
Equivalent is 200；A diameter of 2 microns of the graphene sheet layer, the number of plies=8 layer, oxygen content is 10%；The solid of the epoxy emulsion
The epoxide number of composition is 0.2~0.3.
Its preparation method, including the preparation of component one and the preparation of component two and the step that mixes component one and component two
Suddenly, the preparation method of the component one is comprised the following steps：
(1) material is prepared by the weight portion of each component described above；
(2) stone is slowly uniformly added under stirring by modified amine curing agent, solvent, dispersant addition a mixing bowl in order
Black alkene, is uniformly dispersed at a high speed.
(3) above material is ground using grinder, fineness of grind=20 micron, viscosity=120 second (apply -4 glasss),
Obtain graphene dispersion body.
(4) the graphene dispersion body after grinding is added in a mixing bowl, opens stirring at low speed, controlled in 300r/min,
It is dividedly in some parts other coating to stir, is stirred 30 minutes after adding；
(5) product is detected, detects qualified rear filtering, packaging；Filter screen mesh number is 120 mesh；
The preparation method of the component two is：
(1) each component weight portion as described in claim 1 prepares material；
(2) stirred in epoxy emulsion, water, defoamer, wetting agent, flash rust inhibitor addition a mixing bowl in order；
The component one and component two are prepared into film after mixing, film coated surface resistance is 106Ω。
Embodiment two
One kind is based on the enhanced water-base epoxy dust primer of Graphene, is made up of component one and component two, the component one
It is made up of each raw material of following weight portion：
The weight portion of modified amine curing agent 6
The weight portion of solvent 4
The weight portion of the dispersant of high-molecular block copolymer containing carboxyl 0.6
The weight portion of silicon powder 15
The weight portion of zinc powder 50
The weight portion of organobentonite 1.5
The weight portion of Graphene 0.5
The weight portion of dehydrating agent 0.7；
The component two is made up of each raw material of following weight portion：
The weight portion of epoxy emulsion 70
The weight portion of defoamer 0.3
The weight portion of wetting agent 0.35
The weight portion of water 10
The weight portion of flash rust inhibitor 3.
The modified amine curing agent is not aqueous, and containing absolute ethyl alcohol, quality solid content is 70%, and active hydrogen equivalent weight is 300；
A diameter of 17 microns of the graphene sheet layer, the number of plies=5 layer, oxygen content 8%；The epoxide number of the solid constituent of the epoxy emulsion
It is 0.25.
Its preparation method, including the preparation of component one and the preparation of component two and the step that mixes component one and component two
Suddenly, the preparation method of the component one is comprised the following steps：
(1) material is prepared by the weight portion of above-mentioned each component；
(2) stone is slowly uniformly added under stirring by modified amine curing agent, solvent, dispersant addition a mixing bowl in order
Black alkene, is uniformly dispersed at a high speed.
(3) above material is ground using grinder, fineness of grind≤20 micron, viscosity≤120 second (apply -4 glasss),
Obtain graphene dispersion body.
(4) the graphene dispersion body after grinding is added in a mixing bowl, opens stirring at low speed, controlled in 400r/min,
It is dividedly in some parts other coating to stir, is stirred 30 minutes after adding；
(5) product is detected, detects qualified rear filtering, packaging；Filter screen mesh number is 130 mesh；
The preparation method of the component two is：
(1) material is prepared by above-mentioned each component weight portion；
(2) stirred in epoxy emulsion, water, defoamer, wetting agent, flash rust inhibitor addition a mixing bowl in order；
The component one and component two are prepared into film after mixing, film coated surface resistance is 109Ω。
Embodiment three
One kind is based on the enhanced water-base epoxy dust primer of Graphene, is made up of component one and component two, the component one
It is made up of each raw material of following weight portion：
The weight portion of modified amine curing agent 10
The weight portion of solvent 5
The weight portion of carboxylic high-molecular block copolymer 1
The weight portion of ferrophosphorus powder 30
The weight portion of zinc powder 85
The weight portion of modified polyurethane urea 2
The weight portion of Graphene 1
The weight portion of dehydrating agent 1；
The component two is made up of each raw material of following weight portion：
The weight portion of epoxy emulsion 80
The weight portion of defoamer 0.5
The weight portion of wetting agent 0.5
The weight portion of water 20
The weight portion of flash rust inhibitor 5.
The modified amine curing agent is not aqueous, and containing absolute ethyl alcohol, quality solid content is 80%, and active hydrogen equivalent weight is 400；
A diameter of 30 microns of the graphene sheet layer, the number of plies=10 layer, oxygen content is 14%；The ring of the solid constituent of the epoxy emulsion
Oxygen value is 0.3.
Its preparation method, including the preparation of component one and the preparation of component two and the step that mixes component one and component two
Suddenly, the preparation method of the component one is comprised the following steps：
(1) material is prepared by the weight portion of above-mentioned each component；
(2) stone is slowly uniformly added under stirring by modified amine curing agent, solvent, dispersant addition a mixing bowl in order
Black alkene, is uniformly dispersed at a high speed.
(3) above material is ground using grinder, fineness of grind≤20 micron, viscosity≤120 second (apply -4 glasss),
Obtain graphene dispersion body.
(4) the graphene dispersion body after grinding is added in a mixing bowl, opens stirring at low speed, controlled in 300~500r/
Min, is dividedly in some parts other coating and stirs, and is stirred 30 minutes after adding；
(5) product is detected, detects qualified rear filtering, packaging；Filter screen mesh number is 120~150 mesh；
The preparation method of the component two is：
(1) material is prepared by above-mentioned each component weight portion；
(2) stirred in epoxy emulsion, water, defoamer, wetting agent, flash rust inhibitor addition a mixing bowl in order；
The component one and component two are prepared into film after mixing, film coated surface resistance is 1012Ω。
Wherein, in the present invention, each material content of the component is capable of achieving mesh of the invention in following parameter area
's：The weight portion of modified amine curing agent 3~10, the weight portion of solvent 3~5, the weight portion of dispersant 0.1~1, the weight portion of filler 0~30,
The weight portion of zinc powder 20~85, the weight portion of auxiliary rheological agents 1~2, the weight portion of Graphene 0.1~1, the weight portion of dehydrating agent 0.5~1；Institute
Each material content for stating component two is capable of achieving the purpose of the present invention in following parameter area：The weight of epoxy emulsion 60~80
Part, the weight portion of defoamer 0.1~0.5, the weight portion of wetting agent 0.1~0.5, the weight portion of water 0~20, the weight of flash rust inhibitor 1~5
Part.
Described above, only using the embodiment of this origination techniques content, any those skilled in the art are with this wound
Make done modification, change, all belong to the scope of the claims of this creation opinion, and be not limited to those disclosed embodiments.
Claims (9)
1. it is a kind of to be based on the enhanced water-base epoxy dust primer of Graphene, it is characterised in that to be made up of component one and component two, institute
Component one is stated to be made up of each raw material of following weight portion：
The weight portion of modified amine curing agent 3~10
The weight portion of solvent 3~5
The weight portion of dispersant 0.1~1
The weight portion of filler 0~30
The weight portion of zinc powder 20~85
The weight portion of auxiliary rheological agents 1~2
The weight portion of Graphene 0.1~1
The weight portion of dehydrating agent 0.5~1；
The component two is made up of each raw material of following weight portion：
The weight portion of epoxy emulsion 60~80
The weight portion of defoamer 0.1~0.5
The weight portion of wetting agent 0.1~0.5
The weight portion of water 0~20
The weight portion of flash rust inhibitor 1~5.
2. according to claim 1 based on the enhanced water-base epoxy dust primer of Graphene, it is characterised in that：It is described modified
Amine hardener is not aqueous, and containing organic solvent that can be molten altogether with water, quality solid content is 60~80%, and active hydrogen equivalent weight is 200
~400.
3. according to claim 1 and 2 based on the enhanced water-base epoxy dust primer of Graphene, it is characterised in that：It is described
A diameter of 2~30 microns of graphene sheet layer, the number of plies≤10 layer, oxygen content is less than 15%.
4. according to claim 3 based on the enhanced water-base epoxy dust primer of Graphene, it is characterised in that：The dispersion
Agent is any one in the high-molecular block copolymer of amino-contained or carboxyl or two or more with any mixture than mixing.
5. according to claim 4 based on the enhanced water-base epoxy dust primer of Graphene, it is characterised in that：Described filler
It is any one in talcum powder, silicon powder, silica flour or ferrophosphorus powder or two or more with any mixture than mixing.
6. according to claim 5 based on the enhanced water-base epoxy dust primer of Graphene, it is characterised in that：The rheology
Auxiliary agent is any one in aerosil, organobentonite, modified polyurethane urea or two or more with any ratio mixing
Mixture.
7. according to claim 6 based on the enhanced water-base epoxy dust primer of Graphene, it is characterised in that：The epoxy
The epoxide number of the solid constituent of emulsion is 0.2~0.3.
8. a kind of preparation method based on the enhanced water-base epoxy dust primer of Graphene, it is characterised in that including component one
Prepare and component two preparation and the step of component one and component two are mixed, the preparation method of the component one includes following
Step：
(1) weight portion of each component as described in claim 1 prepares material；
(2) Graphene is slowly uniformly added under stirring by modified amine curing agent, solvent, dispersant addition a mixing bowl in order,
It is uniformly dispersed at a high speed.
(3) above material is ground using grinder, fineness of grind≤20 micron, viscosity≤120 second, applies -4 glasss, obtained
Graphene dispersion body.
(4) the graphene dispersion body after grinding is added in a mixing bowl, opens stirring at low speed, controlled in 300~500r/min,
It is dividedly in some parts other coating to stir, is stirred 30 minutes after adding；
(5) product is detected, detects qualified rear filtering, packaging；Filter screen mesh number is 120~150 mesh；
The preparation method of the component two is：
(1) each component weight portion as described in claim 1 prepares material；
(2) stirred in epoxy emulsion, water, defoamer, wetting agent, flash rust inhibitor addition a mixing bowl in order.
9. the preparation method based on the enhanced water-base epoxy dust primer of Graphene according to claim 8, its feature exists
In：The component one and component two are prepared into film after mixing, film coated surface resistance is 106~1012Ω。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611008765.5A CN106752672A (en) | 2016-11-16 | 2016-11-16 | One kind is based on the enhanced water-base epoxy dust primer of Graphene and its production method |
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| CN201611008765.5A CN106752672A (en) | 2016-11-16 | 2016-11-16 | One kind is based on the enhanced water-base epoxy dust primer of Graphene and its production method |
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| CN107641445A (en) * | 2017-09-26 | 2018-01-30 | 信和新材料股份有限公司 | A kind of fast-drying aqueous zinc powder shop primer of ultra high solids part being modified based on graphene and preparation method thereof |
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| CN109266166B (en) * | 2018-08-07 | 2021-01-29 | 山东齐鲁漆业有限公司 | Nano boron graphene water-based epoxy zinc-rich anti-rust primer |
| CN109796846A (en) * | 2019-01-22 | 2019-05-24 | 信和新材料股份有限公司 | A kind of high conductivity based on conducing composite material can weld shop primer and preparation method thereof |
| CN115595043A (en) * | 2022-10-31 | 2023-01-13 | 信和新材料（苏州）有限公司（Cn） | High-temperature and low-temperature change resistant graphene zinc powder coating material, and preparation method and application thereof |
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