CN108395752A - Coating and preparation method thereof is applied in a kind of graphene anticorrosion - Google Patents
Coating and preparation method thereof is applied in a kind of graphene anticorrosion Download PDFInfo
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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
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4081—Mixtures of compounds of group C08G18/64 with other macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/58—Epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/64—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63
- C08G18/6484—Polysaccharides and derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
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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
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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
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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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
- C09D7/66—Additives characterised by particle size
- C09D7/67—Particle size smaller than 100 nm
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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
Abstract
Coating and preparation method thereof, including first component and second component are applied in a kind of graphene anticorrosion of present invention offer, wherein first component includes the ingredient of following weight proportion：30~60 parts of aqueous epoxy resins, 15~30 parts of waterborne polyurethane resin, 8~15 parts of graphene oxide, 4~6 parts of hydroxyethyl cellulose, 0.8~1.5 part of dodecyl benzyl dimethyl ammonium chloride, 0.5~1.3 part of N N-isopropylacrylamides, 0.3~0.5 part of antifoaming agent, 2~4 parts of nano assistant, 10~18 parts of color stuffing, 0.5~1.5 part of wetting agent, 40~60 parts of water；The second group is divided into hexamethylene diisocyanate curing agent；The weight ratio of the first component and second component is 8~10:1.The present invention also provides the preparation methods that coating is applied in a kind of graphene anticorrosion, significantly enhance the Corrosion Protection and weather resistance of coating, mechanical strength has also obtained great enhancing.
Description
Technical field
The present invention relates to technical field of paint preparation, more particularly to coating and its preparation side are applied in a kind of graphene anticorrosion
Method.
Background technology
Floating coat is the coatings being attached on subbing, plays the role of forming a connecting link in coating composite coating,
Play the role of to the weatherability of the richness of finishing coat, adhesive force and composite coating, the hardness of coating vital.Current
Middle painting coating generally uses polyurethane, acrylate etc. to be used as matrix resin, by adding corresponding auxiliary agent and filler, makes its tool
There is preferable performance.
Graphene is the tightly packed single layer of carbon atom at two-dimentional six side's honeycomb crystal lattice structures, between each carbon atom with
sp2Hybrid form is connected.On microcosmic, single-layer graphene film is not two-dimensional flat structure, but has " on nanoscale "
The single layer structure of stable wavy is presently found unique existing Two Dimensional Free state atomic crystal；Macroscopically, graphene
It can be warped into the fullerene of zero dimension, be rolled into one-dimensional carbon nanotube or be stacked to three-dimensional graphite.Graphene unique two
The presence for tieing up the carbon hexatomic ring stablized in period honeycomb lattice structure, imparts its excellent performance：The thickness of single-layer graphene
Degree is only 0.35nm, is to be currently known most light most thin material；Its electron mobility at room temperature is 2 × 105cm2·V-1·
s-1, it is the 1/300 of the light velocity, theoretical specific surface area can reach 2630m2·g-1, all band light absorption only has 2.3%, thermal conductivity
Up to 5000Wm-1·K-1, Young's modulus is more than 1100GPa, and tensile strength is more than 130GPa, and toughness is very good, works as application
When external mechanical force, carbon atom can be bent and deformed to adapt to external force, without making carbon atom rearrange, be maintained in this way
The stabilization of structure.Therefore, graphene is a kind of carbon material that application potential is very extensive, novel reaction separation, new material,
There is huge application prospect in numerous industries such as energy conservation and environmental protection.
Graphene oxide thin slice is product of the powdered graphite after chemical oxidation and stripping, and graphene oxide is single original
Sublayer can expand to some tens of pm on lateral dimension at any time.Therefore, the general chemistry of construct trans and material science
Typical size.Graphene oxide can be considered a kind of flexible material of non-traditional kenel, have polymer, colloid, film and two
The characteristic of property molecule.
Graphene oxide is same as graphene all to have excellent performance, and various due to containing in graphene oxide layer
Oxygen-containing functional group is easier to react with the generation of other chemical substances, and application range is wider.But addition graphene oxide system at present
It is less at the middle product for applying coating, and graphene oxide more can not uniformly disperse in coating products obtained, coating is prevented
The performances such as corrosivity, weatherability, hardness are unable to reach expection, while currently used middle painting coating is to ensure antiseptic property,
Intermediate coat thickness is generally up to 300 μm~500 μm, the cost increase for causing coating to use.
Invention content
For the shortcoming and defect existing in the prior art for solving mentioned above, the present invention provides a kind of graphene anticorrosion
Middle painting coating and preparation method thereof, using epoxy resin as principal resinous ingredients, while the addition oxidation stone in coating system
Black alkene, surfactant and cellulose make the hydroxyl on the oxygen-containing group and resin on graphene oxide form high forces
Hydrogen bond forms fine and close shielded layer, greatly strengthens the anti-corrosion of coating to keep the arrangement of graphene oxide in the coating uniform
Corrosion energy, weather resistance and mechanical performance.
The present invention adopts the following technical scheme that：
Coating in a kind of graphene anticorrosion, including first component and second component, wherein first component includes that following weight is matched
The ingredient of ratio：
The second group is divided into hexamethylene diisocyanate curing agent；
The weight ratio of the first component and second component is 8~10:1.
Further, the first component includes the ingredient of following weight proportion：
The second group is divided into hexamethylene diisocyanate curing agent；
The weight ratio of the first component and second component is 8:1.
Further, the aqueous epoxy resins are the two kinds of mixing of bisphenol A epoxide resin E-20 types and E-35 types, epoxide number
For 0.25eq/100g~0.37eq/100g, solid content is 75%~80%.
Further, solvent-free in the hexamethylene diisocyanate curing agent, and its nco value is 40%~45%.
Further, the antifoaming agent is the mixing of one or both of tributyl phosphate, polydimethyl siloxane fluid.
Further, the nano assistant is nano zine oxide and nano-titanium dioxide with weight ratio 2~3:1 mixing and
At.
Further, the color stuffing is calcium carbonate, talcum powder, barium sulfate with weight ratio 3.2~3.5:1.5~1.8:
2.6~3 mix.
Further, the wetting agent mixes for one or both of isopropyl naphthalene sulfonate or sodium butylnaphthalenesulfonate.
Further, the waterborne polyurethane resin is water-based aliphaic polyurethane, and solid content is 18%~23%.
The present invention also provides the preparation methods that coating is applied in a kind of graphene anticorrosion, include the following steps：
Step 1: water, wetting agent and aqueous epoxy resins are added in the reaction vessel, with the rate of 600~750 turns/min
30~35min is stirred, waterborne polyurethane resin is added, continues to stir 60~70min with the rate of 600~750 turns/min；
Oxidation is made Step 2: graphene oxide is dispersed in water and shakes 15~20min with the frequency ultrasound of 50KHz
Graphene dispersing solution is added in the reaction vessel of step 1, and stirs 50~60min with the rate of 1200~1500 turns/min,
Dodecyl benzyl dimethyl ammonium chloride is slowly added dropwise in whipping process simultaneously；
Step 3: hydroxyethyl cellulose and n-isopropyl acrylamide are added in the reaction vessel of step 2, with 800~
After the rate of 850 turns/min stirs 40~50min, antifoaming agent, nano assistant, color stuffing are added, with 900~1000 turns/min
Rate stir 60~80min after filtering and discharging can be obtained in graphene anticorrosion apply coating first component.
In a kind of graphene anticorrosion provided by the invention apply coating in preparation process, use aqueous epoxy resins and
Waterborne polyurethane resin as matrix resin, wherein aqueous epoxy resins as main coating moiety, on its segment containing compared with
More hydroxyls and epoxy group, and oxidation product of the graphene oxide as graphene contain numerous oxygen-containing groups on the surface thereof
Group contains more hydroxyl and epoxy group in the middle part of the lamella of graphene oxide, more carboxyl and carbonyl is contained on its periphery,
After graphene oxide is by ultrasonic vibration, makes graphene oxide that dispersity be kept to be added and stirred into resin compound
It mixes, while dodecyl benzyl dimethyl ammonium chloride is added, make the hydroxyl on the oxygen-containing group and resin matrix on graphene oxide
Base and epoxy group form the hydrogen bond of high forces, add hydroxyethyl cellulose and n-isopropyl acrylamide is stirred, profit
With the characteristic of the hydrophilic amide groups and hydrophobic isopropyl of n-isopropyl acrylamide, keep graphene oxide evenly dispersed
In the resin mixture, hydroxyethyl cellulose keeps the Hydrogenbond of graphene oxide and epoxy resin more steady as stabilizer
Fixed, graphene oxide layer forms stable layered laminate structure with resin matrix at this time.
Coating is applied in graphene anticorrosion in actual use, and resin matrix is handed under the action of curing agent
Connection solidification, graphene oxide forms planar association with being cross-linked with each other for resin segment in the curing process, is applying
Layer lower section is laminated graphene oxide layer, and tends towards stability with the solidification of resin, after resin is fully cured under coating
The rectangular fine and close graphene oxide layer at multilayer.The screen effect of graphene oxide makes extraneous corrosive liquids that can not immerse
Coat inside, and due to adding waterborne polyurethane resin in resin, while enhancing film flexibility, with oxidation stone
The screen effect collective effect of black alkene makes ultraviolet light also be blocked in coating outer layer section, greatly strengthens the anti-corrosion of coating
The high-strength mechanical performance of corrosion energy and weather resistance, graphene oxide makes the mechanical strength of coating also obtain great enhancing.
Using coating in graphene anticorrosion provided by the invention, the thickness of coating can reach extremely excellent at 100 μm~150 μm
Elegant anticorrosion ability, greatly reduces the use cost of coating.
Coating and preparation method thereof is applied in a kind of graphene anticorrosion provided by the invention, by graphene oxide dispersate water
Property epoxy resin and waterborne polyurethane resin hybrid resin matrix in, while appropriate amount of addition agent is added, make graphene oxide with it is mixed
Resin forms relatively stable hydrogen bond, to form the fine and close graphene oxide layer of multilayer in the coating, significantly enhances
The Corrosion Protection and weather resistance of coating, mechanical strength have also obtained great enhancing.
Specific implementation mode
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
Embodiment provided by the invention is shown in Table 1：
Table 1
Specific preparation method is as follows：
Embodiment 1：
Step 1: 50 parts of water, 0.9 part of wetting agent and 43 parts of aqueous epoxy resins are added in the reaction vessel, with 700 turns/
The rate of min stirs 30min, adds 25 parts of waterborne polyurethane resins, continues to stir 70min with the rate of 700 turns/min；
Step 2: 12 parts of graphene oxides are dispersed in water and oxidation is made with the frequency ultrasound of 50KHz concussion 20min
Graphene dispersing solution is added in the reaction vessel of step 1, and stirs 55min with the rate of 1300 turns/min, while stirring
0.9 part of dodecyl benzyl dimethyl ammonium chloride is slowly added dropwise in the process；
Step 3: 5 parts of hydroxyethyl celluloses and 0.8 part of N- isopropyl acrylamide are added in the reaction vessel of step 2
Amine adds 0.3 part of antifoaming agent, 3.2 parts of nano assistants, 13 parts of color stuffings after the rate stirring 45min of 800 turns/min, with
Filtering and discharging can be obtained the first component that coating is applied in graphene anticorrosion after the rate stirring 70min of 900 turns/min.
Embodiment 2：
Step 1: 48 parts of water, 0.6 part of wetting agent and 48 parts of aqueous epoxy resins are added in the reaction vessel, with 700 turns/
The rate of min stirs 30min, adds 21 parts of waterborne polyurethane resins, continues to stir 70min with the rate of 700 turns/min；
Step 2: 11 parts of graphene oxides are dispersed in water and oxidation is made with the frequency ultrasound of 50KHz concussion 20min
Graphene dispersing solution is added in the reaction vessel of step 1, and stirs 55min with the rate of 1300 turns/min, while stirring
1.1 parts of dodecyl benzyl dimethyl ammonium chlorides are slowly added dropwise in the process；
Step 3: 4 parts of hydroxyethyl celluloses and 0.6 part of N- isopropyl acrylamide are added in the reaction vessel of step 2
Amine adds 0.4 part of antifoaming agent, 2.8 parts of nano assistants, 14 parts of color stuffings after the rate stirring 45min of 800 turns/min, with
Filtering and discharging can be obtained the first component that coating is applied in graphene anticorrosion after the rate stirring 70min of 900 turns/min.
Embodiment 3：
Step 1: 53 parts of water, 0.8 part of wetting agent and 53 parts of aqueous epoxy resins are added in the reaction vessel, with 700 turns/
The rate of min stirs 30min, adds 26 parts of waterborne polyurethane resins, continues to stir 70min with the rate of 700 turns/min；
Step 2: 11 parts of graphene oxides are dispersed in water and oxidation is made with the frequency ultrasound of 50KHz concussion 20min
Graphene dispersing solution is added in the reaction vessel of step 1, and stirs 55min with the rate of 1300 turns/min, while stirring
1.1 parts of dodecyl benzyl dimethyl ammonium chlorides are slowly added dropwise in the process；
Step 3: 6 parts of hydroxyethyl celluloses and 0.9 part of N- isopropyl acrylamide are added in the reaction vessel of step 2
Amine adds 0.5 part of antifoaming agent, 3.0 parts of nano assistants, 13 parts of color stuffings after the rate stirring 45min of 800 turns/min, with
Filtering and discharging can be obtained the first component that coating is applied in graphene anticorrosion after the rate stirring 70min of 900 turns/min.
Wherein, the nano assistant is nano zine oxide and nano-titanium dioxide with weight ratio 2.5：1 mixes；It is described
Color stuffing is calcium carbonate, talcum powder, barium sulfate with weight ratio 3.4:1.6:2.8 mixing.
In use, by the first and second components according to weight ratio 8:1 is matched, after mixing can application use.
The performance that coating is applied in a kind of graphene anticorrosion provided by the invention is not detected, and inventor devises multigroup control
Experiment, specific testing program are as follows：
Comparative example 1：Coating in common Commercial epoxy resins；
Comparative example 2：It is basic preparation method with embodiment 1, removes the graphene oxide added in preparation process；
Comparative example 3：It is basic preparation method with embodiment 1, removes the dodecyl dimethyl benzyl added in preparation process
Ammonium chloride and hydroxyethyl cellulose.
Inventor exists the product obtained by embodiment 1, embodiment 2, embodiment 3, comparative example 1, comparative example 2, comparative example 3
Identical steel surface coats identical thickness (130 μm ± 5 μm), and drying at room temperature carries out quality test after 3 days, test result is such as
Shown in table 2：
Table 2
By above quality measurements it is found that applying the Corrosion Protection of coating in graphene anticorrosion provided by the invention
It compares common middle painting coating products and has obtained great reinforcement, Corrosion Protection is very prominent.Wherein, the test of comparative example 1
As a result it can be found that the Corrosion Protection for applying coating products in common anticorrosion is poor, shock resistance is also bad, and machinery is strong
Degree is not high, and embodiment provided by the invention 1, embodiment 2, embodiment 3 all maintain outstanding Corrosion Protection, impact resistance
Energy and weather resistance, and compared with comparative example 2 and comparative example 3, due to being not added with graphene oxide, coating in comparative example 2
Comprehensive performance is suitable with coating products are applied in general anticorrosion, and in comparative example 3, although being added with graphene oxide, again
The auxiliary agent dodecyl benzyl dimethyl ammonium chloride and hydroxyethyl cellulose wanted are not added with, the comprehensive performance and embodiment of coating
1,2,3 is larger compared to gap, and for this explanation in technical solution provided by the invention, auxiliary agent is affected to coating, is to apply
Play the role of key additive in material film forming procedure.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. coating in a kind of graphene anticorrosion, it is characterised in that：Including first component and second component, wherein first component include with
The ingredient of lower weight proportion：
The second group is divided into hexamethylene diisocyanate curing agent；
The weight ratio of the first component and second component is 8~10:1.
2. coating in a kind of graphene anticorrosion according to claim 1, it is characterised in that：Including first component and second group
Point, the first component includes the ingredient of following weight proportion：
The second group is divided into hexamethylene diisocyanate curing agent；
The weight ratio of the first component and second component is 8:1.
3. coating in a kind of graphene anticorrosion according to claim 1 or 2, it is characterised in that：The water-base epoxy
Resin is the two kinds of mixing of bisphenol A epoxide resin E-20 types and E-35 types, and epoxide number is 0.25eq/100g~0.37eq/100g, Gu
Content is 75%~80%.
4. coating in a kind of graphene anticorrosion according to claim 1 or 2, it is characterised in that：The hexa-methylene
It is solvent-free in diisocyanate curing agent, and its nco value is 40%~45%.
5. coating in a kind of graphene anticorrosion according to claim 1 or 2, it is characterised in that：The antifoaming agent is
One or both of tributyl phosphate, polydimethyl siloxane fluid mix.
6. coating in a kind of graphene anticorrosion according to claim 1 or 2, it is characterised in that：The nano assistant
It is nano zine oxide and nano-titanium dioxide with weight ratio 2~3:1 mixes.
7. coating in a kind of graphene anticorrosion according to claim 1 or 2, it is characterised in that：The color stuffing is
Calcium carbonate, talcum powder, barium sulfate are with weight ratio 3.2~3.5:1.5~1.8:2.6~3 mix.
8. coating in a kind of graphene anticorrosion according to claim 1 or 2, it is characterised in that：The wetting agent is
One or both of isopropyl naphthalene sulfonate or sodium butylnaphthalenesulfonate mix.
9. coating in a kind of graphene anticorrosion according to claim 1 or 2, it is characterised in that：The aqueous poly- ammonia
Ester resin is water-based aliphaic polyurethane, and solid content is 18%~23%.
10. applying the preparation method of coating in a kind of graphene anticorrosion as claimed in claim 1 or 2, which is characterized in that including
Following steps：
Step 1: water, wetting agent and aqueous epoxy resins are added in the reaction vessel, stirred with the rate of 600~750 turns/min
30~35min adds waterborne polyurethane resin, continues to stir 60~70min with the rate of 600~750 turns/min；
Graphite oxide is made Step 2: graphene oxide is dispersed in water and shakes 15~20min with the frequency ultrasound of 50KHz
Alkene dispersion liquid, is added in the reaction vessel of step 1, and stirs 50~60min with the rate of 1200~1500 turns/min, simultaneously
Dodecyl benzyl dimethyl ammonium chloride is slowly added dropwise in whipping process；
Step 3: hydroxyethyl cellulose and n-isopropyl acrylamide are added in the reaction vessel of step 2, with 800~850
Turn/after the rate of min stirs 40~50min, antifoaming agent, nano assistant, color stuffing are added, with 900~1000 turns/min's
Filtering and discharging can be obtained the first component that coating is applied in graphene anticorrosion after rate stirs 60~80min.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109401539A (en) * | 2018-10-17 | 2019-03-01 | 苏州扬子江新型材料股份有限公司 | Anti-corrosion nano graphene Coil Coating Products |
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| CN114369336A (en) * | 2021-12-27 | 2022-04-19 | 哈尔滨工程大学 | Novel drag reduction, hydrophobic/deicing integrated film |
| CN114369336B (en) * | 2021-12-27 | 2023-07-21 | 哈尔滨工程大学 | Drag-reducing, hydrophobic/deicing integrated film |
| CN115011201A (en) * | 2022-06-13 | 2022-09-06 | 安徽登王化工有限公司 | Anticorrosive graphite coating and preparation method thereof |
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