CN110093058A - Anticorrosive paint low defect graphene composition, slurry and preparation method thereof, anticorrosive paint - Google Patents
Anticorrosive paint low defect graphene composition, slurry and preparation method thereof, anticorrosive paint Download PDFInfo
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- CN110093058A CN110093058A CN201910425136.XA CN201910425136A CN110093058A CN 110093058 A CN110093058 A CN 110093058A CN 201910425136 A CN201910425136 A CN 201910425136A CN 110093058 A CN110093058 A CN 110093058A
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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
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/46—Graphite
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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
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
- C09C3/041—Grinding
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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
- C09D201/00—Coating compositions based on unspecified macromolecular compounds
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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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Abstract
The present invention relates to a kind of anticorrosive paint low defect graphene compositions, slurry and preparation method thereof, anticorrosive paint, belong to technical field of coatings.The present invention provides a kind of anticorrosive paint low defect graphene slurry, including graphene, dispersing agent and solvent, in the Raman spectrum of graphene, D peak intensity is lower than the 1/10 of G peak intensity.Anticorrosive paint graphene slurry of the invention can play graphene, the especially highly conductive lamella characteristic of physical method graphene raw material, suitable for the anticorrosive paint of different systems, on the basis of not changing existing coating and construction technology, anti-corrosion timeliness can be extended, reduce coating cost.Be conducive to keep the low defect characteristic of graphene raw material that the comprehensive performance of a variety of system anticorrosive paints can be improved so that nanoscale twins graphene is fully dispersed, the staggered Physical barriers shielding of lamella can be formed and corroded, salt spray resistance is improved.
Description
Technical field
The present invention relates to a kind of anticorrosive paint low defect graphene composition, slurry and preparation method thereof, anticorrosive paint,
Belong to technical field of coatings.
Background technique
Metal erosion is generally existing, is broadly divided into chemical attack and electrochemical corrosion, corrodes caused loss, not only table
Now make material itself shape, color and in terms of destroyed, more important is show to make its manufactured goods
Decline with structural metallic engineering credit rating, influence its use value, loss caused by annual metal erosion accounts for about the 5% of GDP.
By anti-corrosion paint in metallic substrate surface or the mode of inner wall, be at present it is most effective, overall cost is minimum
Metal corrosion preventing method.Filler is lost frequently with electrochemical anti-corrosives such as inorganic zinc powder, four basic zinc Huangs, trbasic zinc phosphates in coating at present, with
And the physical barriers filler such as micaceous iron oxide, glass flake, metal scale, but all there are some problems, such as zinc powder in these fillers
Influence welding, the Cr in four basic zincs Huang6+Easily carcinogenic, micaceous iron oxide shielding is poor, and glass flake is flexible low.
Graphene is sp2The single layer two dimensional crystal that hydridization is constituted, optics, electricity, mechanics and calorifics etc. it is all it is many-sided all
It is just received significant attention, room-temperature conductivity 10 at the beginning of discovery in 2004 with a variety of excellent characteristics6S/m, graphene
Unique planar structure, so that graphene has important application value in anticorrosive paint field, it is a kind of ideal performance increasing
Strong filler.
But graphene is easily reunited, and is difficult to be uniformly dispersed in coating preparation, its performance is seriously hindered to play, cannot be direct
It uses.Currently, mostly carried out in the form of graphene slurry using, but the graphene in existing commercial anti-corrosion slurry, be with
What oxidation-reduction method or strong oxidizer intercalation mechanical stripping method were prepared, add containing a large amount of group and defect, and in slurry
Add the content of agent higher, though stable slurry can be formed, products obtained therefrom cannot give full play to the excellent properties of graphene, and to existing
There is formulation for coating material technique to have an impact.
Summary of the invention
The first purpose of this invention is to provide a kind of anticorrosive paint low defect graphene composition, by the composition
Obtained anticorrosive paint enables to graphene evenly dispersed wherein with low defect graphene slurry.
Second object of the present invention is to provide a kind of anticorrosive paint low defect graphene slurry, the stone in the slurry
Black alkene can be evenly dispersed.
Third object of the present invention is to provide the preparation method of above-mentioned anticorrosive paint low defect graphene slurry, make
Standby simple process, maintains the low defect and lamella characteristic of graphene.
Fourth object of the present invention is to provide a kind of anticorrosive paint.
Technical scheme is as follows:
A kind of anticorrosive paint low defect graphene composition, including graphene and dispersing agent；
The dispersing agent is dodecyl sodium sulfate, cetyl diphenyl ether sodium monosulfate, benzene sulfonamide acid phenenyl ester, alkane
Quito polydextrose, ethylene oxide and epoxy propane copolymer, fatty alcohol alkoxy compound, hydroxypropyl methyl cellulose, poly- second
At least one of glycol, silane coupling agent, polyvinylpyrrolidone, polyvinylpyrrolidone derivative；
In the Raman spectrum of the graphene, D peak intensity is lower than the 1/10 of G peak intensity.
The slurry that anticorrosive paint of the invention is obtained with low defect graphene composition can play graphene, especially physics
The highly conductive lamella characteristic of method graphene raw material is not changing existing coating and construction suitable for the anticorrosive paint of different systems
On the basis of technique, anti-corrosion timeliness can be extended, reduce coating cost.
A kind of anticorrosive paint low defect graphene slurry, including graphene, dispersing agent and solvent；
The dispersing agent is dodecyl sodium sulfate, cetyl diphenyl ether sodium monosulfate, benzene sulfonamide acid phenenyl ester, alkane
Quito polydextrose, ethylene oxide and epoxy propane copolymer, fatty alcohol alkoxy compound, hydroxypropyl methyl cellulose, poly- second
At least one of glycol, silane coupling agent, polyvinylpyrrolidone, polyvinylpyrrolidone derivative；
In the Raman spectrum of the graphene, D peak intensity is lower than the 1/10 of G peak intensity.
Anticorrosive paint of the invention low defect graphene slurry is conducive to the low defect characteristic for keeping graphene raw material,
So that nanoscale twins graphene is fully dispersed, the comprehensive performance of a variety of system anticorrosive paints can be improved, for example, can be in matrix surface
Conductive channel to be constructed, zinc powder and metal base is promoted to form primary battery, zinc loses electronics as anodic oxidation when corrosion occurs, into
And cathodic protection is generated to metal base, for another example, can form the staggered Physical barriers shielding of lamella corrodes, and improves salt fog resistance
Energy.
Preferably, the anticorrosive paint low defect graphene slurry further includes stabilizer, and the stabilizer is butylbenzene rubber
It is glue, nitrile rubber, Kynoar, polytetrafluoroethylene (PTFE), sodium carboxymethylcellulose, Arabic gum, organic modified bentonite, bright
At least one of glue, xanthan gum, guar gum, sodium alginate, chitosan.Butadiene-styrene rubber, Kynoar, gathers nitrile rubber
Tetrafluoroethene, sodium carboxymethylcellulose, Arabic gum, organic modified bentonite, gelatin, xanthan gum, guar gum, sodium alginate,
Chitosan is conducive to anticorrosive paint as stabilizer and stablizes storage with the slurry system that low defect graphene composition obtains.
Preferably, the solvent is ethyl alcohol, n-butanol, propylene glycol, toluene, dimethylbenzene, N-Methyl pyrrolidone, epoxy are lived
At least one of property diluent, 1,4- butanediol diglycidyl ether, water.Ethyl alcohol, n-butanol, propylene glycol, toluene, diformazan
Benzene, N-Methyl pyrrolidone, epoxy active diluent, 1,4- butanediol diglycidyl ether, water are conducive to graphite as solvent
Alkene and dispersing agent form stable slurry, so that graphene is evenly dispersed wherein.
Preferably, the weight ratio of the graphene, dispersing agent and solvent is 4~20:1~5:73~97.9.Weight ratio is 4
Graphene, dispersing agent and the solvent of~20:1~5:73~97.9 are conducive to the evenly dispersed of graphene, and reunion is effectively relieved.Such as
The dosage of fruit dispersing agent is excessive, when coating system is added, there is the risk to coating system preparation and construction technology interference, if
The dosage of dispersing agent is very few, will be unable to so that graphene uniform dispersion, can not be effectively relieved the agglomeration of low defect graphene.
Preferably, the anticorrosive paint low defect graphene slurry further includes auxiliary agent, and the auxiliary agent is thickener, thixotroping
At least one of agent, levelling agent.If auxiliary agent is thickener and thixotropic agent or auxiliary agent is thickener, thixotropic agent and levelling agent.
Thickener can thicken anticorrosive paint with low defect graphene slurry, prevent occurring sagging phenomenon in construction, assign slurry
Excellent storage stability；Thixotropic agent may make under high shear rates of the anticorrosive paint low defect graphene slurry in construction
There is higher viscosity, help to flow and is easy to construct, meanwhile, under the low shearing speed after making it before construction and construction
Viscosity with higher can prevent sedimentation and wet film sagging.Levelling agent may make anticorrosive paint low defect graphene slurry pair
The coating answered forms a smooth, smooth and uniform coating during drying and forming-film.
A kind of preparation method of above-mentioned anticorrosive paint low defect graphene slurry, comprising the following steps:
Dispersing agent is dissolved in solvent, graphene is then added, is ground after mixing, anticorrosive paint low defect is obtained
Graphene slurry.
Anticorrosive paint is simple with the preparation process of the preparation method of low defect graphene slurry, need to only be dissolved in graphene point
In dispersant solution, after mixing and grinding, anticorrosive paint low defect graphene slurry can be prepared.The preparation method work
Skill is simple, easy to operate, maintains the low defect and lamella characteristic of graphene, the comprehensive of a variety of system anticorrosive paints can be improved
Energy, especially salt spray resistance.
Preferably, the anticorrosive paint is with the preparation method of low defect graphene slurry the following steps are included: by dispersing agent
It is dissolved in solvent, graphene is then added, is ground after mixing, stabilizer and/or auxiliary agent is added, obtain anticorrosive paint with low
Defect graphene slurry；The auxiliary agent is at least one of thickener, thixotropic agent, levelling agent.Stabilizer and/or auxiliary agent plus
Enter, anticorrosive paint low defect graphene slurry better performance can be assigned.
Preferably, the granularity D50 of low defect graphene is 5~100 μ in the anticorrosive paint low defect graphene slurry
m.Granularity D50 is that 5~100 μm of low defect graphene can effectively avoid final coating paint film and shrinkage cavity, burr, adhesive force occurs
Difference and other issues.
A kind of anticorrosive paint, including above-mentioned anticorrosive paint low defect graphene slurry, organic coating.
Anticorrosive paint is uniform with the graphene dispersion in low defect graphene slurry, and can be stabilized, can be with organic painting
Anticorrosive paint is used as after material mixing.
Detailed description of the invention
Fig. 1 is the anticorrosive paint low defect graphene that the embodiment 1 of anticorrosive paint low defect graphene slurry obtains
Slurry and the mixed paint film of aqueous priming paint and the paint film of control sample 1 carry out the corrosion condition schematic diagram after salt spray resistance experiment；
Fig. 2 is the anticorrosive paint low defect graphene that the embodiment 2 of anticorrosive paint low defect graphene slurry obtains
Slurry and the mixed paint film of aqueous priming paint and the paint film of control sample 2 carry out the corrosion condition schematic diagram after salt spray resistance experiment.
Specific embodiment
The invention will be further described With reference to embodiment.
With in low defect graphene composition, there is anticorrosive paint of the invention the graphene long-range periodic orderly to tie
Structure.There is the bright and sharp peak 2D in the Raman spectrum of the graphene.The peak 2D of the peak 2D of the graphene and the spacing at the peak G and graphite with
The spacing at the peak G is compared, and 5cm is reduced-1More than.
With in low defect graphene composition, the anticorrosive paint is combined anticorrosive paint of the invention with low defect graphene
Object further includes stabilizer, and the stabilizer is butadiene-styrene rubber, nitrile rubber, Kynoar, polytetrafluoroethylene (PTFE), carboxymethyl cellulose
At least one of plain sodium, Arabic gum, organic modified bentonite, gelatin, xanthan gum, guar gum, sodium alginate, chitosan.
Anticorrosive paint of the invention is in low defect graphene composition, and in the Raman spectrum of the graphene, D peak intensity is low
In the 1/10 of G peak intensity.
For anticorrosive paint of the invention in low defect graphene composition, the weight ratio of the graphene and dispersing agent is 4
~20:1~5.
Anticorrosive paint of the invention further includes auxiliary agent in low defect graphene composition, and the auxiliary agent is thickener, touching
Become at least one of agent, levelling agent.As auxiliary agent include thickener and thixotropic agent or auxiliary agent include thickener, thixotropic agent and
Levelling agent.
Anticorrosive paint of the invention is in low defect graphene slurry, and in the Raman spectrum of the graphene, carbon-to-oxygen ratio is greater than
20。
For anticorrosive paint of the invention in low defect graphene slurry, the graphene has long-range periodic ordered structure.
There is the bright and sharp peak 2D in the Raman spectrum of the graphene.The peak 2D and the peak G of the peak 2D of the graphene and the spacing at the peak G and graphite
Spacing compare, reduce 5cm-1More than.
Anticorrosive paint of the invention is in low defect graphene slurry, and the average number of plies of the graphene is at 20 layers or less.
For the average number of plies in the thinner thickness of 20 layers of graphene below, extent of exfoliation is higher.
Anticorrosive paint of the invention is in low defect graphene slurry, anticorrosive paint low defect graphene slurry
Viscosity is 100~5000mPas.The anticorrosive paint is less than 500ppm with content of impurities in low defect graphene slurry.
It is described to be ground to be sanded in the preparation method of anticorrosive paint of the invention with low defect graphene slurry.
It is described to be mixed into high speed shear in the preparation method of anticorrosive paint of the invention with low defect graphene slurry.Institute
The speed for stating high speed shear is 1500~2500rpm.
In the preparation method of anticorrosive paint of the invention with low defect graphene slurry, after being ground after high speed shear,
After stabilizer and/or auxiliary agent is added, stirring defoaming under negative pressure obtains anticorrosive paint low defect graphene slurry.The negative pressure
For -0.06MPa~-0.08MPa.
In anticorrosive paint of the invention, the organic coating is waterborne acrylic primer, aqueous metallic paint or paint solidification
The mixed liquor of agent and polyurethane solutions.
The embodiment 1 of anticorrosive paint low defect graphene slurry
The anticorrosive paint of the present embodiment low defect graphene slurry, is grouped as by the group of following parts by weight:
10 parts of low defect graphene, 1 part of dispersing agent cetyl diphenyl ether sodium monosulfate, thickener Natrosol
250HBR0.5 part and 88.5 parts of deionized water.
Low defect graphene is the CP1001 type vermiform three-dimensional grapheme nanometer of Zhengzhou green wood Science and Technology Ltd. production
Cluster, for average platelet less than 10, carbon-to-oxygen ratio is greater than 20.
The embodiment 2 of anticorrosive paint low defect graphene slurry
The anticorrosive paint of the present embodiment low defect graphene slurry, is grouped as by the group of following parts by weight:
10 parts of low defect graphene, 1 part of dispersing agent polyethylene glycol, 0.4 part of fluorocarbon surfactant, thickener RM-8W
0.3 part, 0.2 part of levelling agent BYK-333 and 88.5 parts of deionized water.
Wherein, polyethylene glycol is PEG 12000.
Fluorocarbon surfactant is 3M FC-4430.
Thickener RM-8W is nonionic polyurethane Associative thickener.
Low defect graphene is the same as the anticorrosive paint embodiment 1 of low defect graphene slurry.
The embodiment 3 of anticorrosive paint low defect graphene slurry
The anticorrosive paint of the present embodiment low defect graphene slurry, is grouped as by the group of following parts by weight:
10 parts of low defect graphene, 1 part of Clariant chemical industry TC93,0.3 part of stabilizer butadiene-styrene rubber and 89 parts of n-butanol.
Wherein, butadiene-styrene rubber is JSR TRD2001.
Low defect graphene is the same as the anticorrosive paint embodiment 1 of low defect graphene slurry.
The embodiment 4 of anticorrosive paint low defect graphene slurry
The anticorrosive paint of the present embodiment low defect graphene slurry, is grouped as by the group of following parts by weight:
12 parts of low defect graphene, 3 parts of polyethylene of dispersing agent pyrrolidones and 85 parts of deionized water.
Wherein, polyvinylpyrrolidone is PVP K30, and low defect graphene is the same as anticorrosive paint low defect graphene slurry
Embodiment 1.
The embodiment 5 of anticorrosive paint low defect graphene slurry
The anticorrosive paint of the present embodiment low defect graphene slurry, is grouped as by the group of following parts by weight:
20 parts of low defect graphene, 5 parts of polyethylene of dispersing agent pyrrolidones and 75 parts of deionized water.
Wherein, polyvinylpyrrolidone is PVP K30, and low defect graphene is the same as anticorrosive paint low defect graphene slurry
Embodiment 1.
The embodiment 6 of anticorrosive paint low defect graphene slurry
The anticorrosive paint of the present embodiment low defect graphene slurry, is grouped as by the group of following parts by weight:
4 parts of low defect graphene, dispersing agent, 2 parts and 94 parts of deionized water of polyvinylpyrrolidone.
Wherein, polyvinylpyrrolidone is PVP K30, and low defect graphene is the same as anticorrosive paint low defect graphene slurry
Embodiment 1.
The embodiment 7 of anticorrosive paint low defect graphene slurry
The anticorrosive paint of the present embodiment low defect graphene slurry, is grouped as by the group of following parts by weight:
20 parts of low defect graphene, dispersing agent, 0.5 part and 79.5 parts of deionized water of polyvinylpyrrolidone.
Wherein, polyvinylpyrrolidone is PVP K30, and low defect graphene is the same as anticorrosive paint low defect graphene slurry
Embodiment 1.
The embodiment 8 of anticorrosive paint low defect graphene slurry
The anticorrosive paint of the present embodiment low defect graphene slurry, is grouped as by the group of following parts by weight:
20 parts of low defect graphene, 10 parts of polyethylene of dispersing agent pyrrolidones and 70 parts of deionized water.
Wherein, polyvinylpyrrolidone is PVP K30, and low defect graphene is the same as anticorrosive paint low defect graphene slurry
Embodiment 1.
The embodiment 1 of the anticorrosive paint preparation method of low defect graphene slurry
The preparation method of the anticorrosive paint of the present embodiment low defect graphene slurry, by anticorrosive paint low defect graphite
The embodiment 1 of alkene slurry weighs each component, comprising the following steps:
Dispersing agent cetyl diphenyl ether sodium monosulfate is entered in deionized water, after mixing, low defect stone is added
Black alkene 2000rpm high shear agitation 4 hours, obtains low defect graphene mixed liquor, mixed liquor is pumped into sand mill, with 1mm
Zirconium ball high speed grinding 8h, then mixes with thickener Natrosol 250HBR, stirs under negative pressure -0.08MPa, obtains anti-corrosion painting
Material low defect graphene slurry, wherein the granularity D50 of low defect graphene is 15 μm.
The embodiment 2 of the anticorrosive paint preparation method of low defect graphene slurry
The preparation method of the anticorrosive paint of the present embodiment low defect graphene slurry, by anticorrosive paint low defect graphite
The embodiment 2 of alkene slurry weighs each component, comprising the following steps:
Dispersing agent polyethylene glycol and fluorocarbon surfactant are added in deionized water, after mixing, low defect is added
Graphene 2000rpm high shear agitation 4 hours, obtains low defect graphene mixed liquor, mixed liquor is pumped into sand mill, with
1mm zirconium ball high speed grinding 4h, then mixes with thickener RM-8W and levelling agent BYK-333, stirs, obtain under negative pressure -0.08MPa
To anticorrosive paint low defect graphene slurry, wherein the granularity D50 of low defect graphene is 23 μm.
The embodiment 3 of the anticorrosive paint preparation method of low defect graphene slurry
The preparation method of the anticorrosive paint of the present embodiment low defect graphene slurry, by anticorrosive paint low defect graphite
The embodiment 3 of alkene slurry weighs each component, comprising the following steps:
Dispersing agent Clariant TC93 is added in n-butanol, after mixing, low defect graphene, 2000rpm high is added
Fast shear agitation 4 hours, obtains low defect graphene mixed liquor, and mixed liquor is pumped into sand mill, with 0.3mm zirconium ball high speed grinding
Then 12h is mixed with stabilizer organic modified bentonite, negative pressure -0.08MPa stirring obtains anticorrosive paint low defect graphite
Alkene slurry, wherein the granularity D50 of low defect graphene is 6 μm.
The embodiment 4 of the anticorrosive paint preparation method of low defect graphene slurry
The preparation method of the anticorrosive paint of the present embodiment low defect graphene slurry, by anticorrosive paint low defect graphite
The embodiment 4 of alkene slurry weighs each component, comprising the following steps:
Polyethylene of dispersing agent pyrrolidones K30 is added in deionized water, after mixing, low defect graphene is added,
2000rpm high shear agitation 5 hours, low defect graphene mixed liquor is obtained, mixed liquor is pumped into sand mill, with 1mm zirconium ball
It is stirred under high speed grinding 6h, negative pressure -0.08MPa, obtains anticorrosive paint low defect graphene slurry.
The embodiment 5~8 of the anticorrosive paint preparation method of low defect graphene slurry
The embodiment 5~8 of the anticorrosive paint preparation method of low defect graphene slurry is lacked by anticorrosive paint with low respectively
The embodiment 5~8 for falling into graphene slurry weighs each component, and specific preparation method is the same as anticorrosive paint low defect graphene slurry
The embodiment 4 of preparation method.
The embodiment 1 of anticorrosive paint low defect graphene composition
The anticorrosive paint of the present embodiment low defect graphene composition and anticorrosive paint low defect graphene slurry
Embodiment 1 the difference is that, the present embodiment without solvent, other components and dosage with anticorrosive paint low defect graphene
The embodiment 1 of slurry.Specifically, the present embodiment is grouped as by the group of following parts by weight:
10 parts of low defect graphene, 1 part of dispersing agent cetyl diphenyl ether sodium monosulfate, thickener Natrosol 250
0.5 part of HBR.
The embodiment 2~8 of anticorrosive paint low defect graphene composition
The embodiment 2~8 and anticorrosive paint low defect graphene slurry of anticorrosive paint low defect graphene composition
Embodiment 2~8 the difference is that, the embodiment 2~8 of anticorrosive paint low defect graphene composition is free of solvent,
Other components of the embodiment 2~8 of anticorrosive paint low defect graphene composition are and anticorrosive paint low defect graphene
The embodiment 2~8 of slurry corresponds.
Comparative example 1
The anticorrosive paint of this comparative example low defect graphene slurry, is grouped as: low defect stone by the group of following parts by weight
10 parts and 90 parts of deionized water of black alkene.
Comparative example 2
The graphene slurry and anticorrosive paint of this comparative example are existed with the difference of the embodiment 1 of low defect graphene slurry
Different in the type of, graphene, the graphene of this comparative example is that letter is taken in the fresh material Science and Technology Ltd. FLG101.Remaining component and
Dosage is the same as the anticorrosive paint embodiment 1 of low defect graphene slurry.
Test example 1
1, the performance of the anticorrosive paint embodiment 1 of low defect graphene slurry
By percentage to the quality, the anticorrosive paint of the embodiment 1 of 2.5% anticorrosive paint low defect graphene slurry is taken to use
Low defect graphene slurry occupies the multifunctional aqueous acrylic primer of master worker after mixing with 97.5%, according to GBT1771-
2007 100 μm of standard jigs of production, control sample 1 is the template for being not added with 100 μm of the aqueous priming paint production of graphene, by national standard
GBT1771-2007 carries out resistance to neutral salt spray test, the result is shown in Figure 1, and in Fig. 1,1 carries out salt spray resistance experiment in paint film for control sample 1
Corrosion condition schematic diagram when 0h afterwards, the 2 corrosion condition schematic diagram for control sample 1 in 18h after paint film carries out salt spray resistance experiment,
3 are shown for anticorrosive paint with corrosion condition of the embodiment 1 of low defect graphene slurry in 0h after paint film carries out salt spray resistance experiment
It is intended to, 4 be corrosion of the anticorrosive paint with the embodiment 1 of low defect graphene slurry in 120h after paint film carries out salt spray resistance experiment
Situation schematic diagram.The paint film of control sample 1 grade of getting rusty is determined as S1, anticorrosive paint after 120h according to GBT1771-2007 after 18h
It is S1 with the paint film of the embodiment 1 of low defect graphene slurry grade of getting rusty.
2, the performance of the anticorrosive paint embodiment 2 of low defect graphene slurry
By percentage to the quality, the anticorrosive paint of the embodiment 2 of 2.5% anticorrosive paint low defect graphene slurry is taken to use
Low defect graphene slurry occupies master worker's aqueous metallic paint after mixing with 97.5%, makes 100 μm according to GBT1771-2007
Standard jig, control sample 2 is the template for being not added with 100 μm of the aqueous metallic paint production of graphene, by national standard GBT1771-2007
Resistance to neutral salt spray test is carried out, as a result sees Fig. 2, in Fig. 2,5 corrosion for control sample 2 in 0h after paint film carries out salt spray resistance experiment
Situation schematic diagram, the 6 corrosion condition schematic diagram for control sample 2 when after paint film carries out salt spray resistance experiment for 24 hours, 7 be anticorrosive paint
With corrosion condition schematic diagram of the embodiment 2 of low defect graphene slurry in 0h after paint film carries out salt spray resistance experiment, 8 be anti-corrosion
Corrosion condition schematic diagram of the coating with the embodiment 2 of low defect graphene slurry in 160h after paint film carries out salt spray resistance experiment.
The paint film of control sample 2 grade of getting rusty is determined as S1 according to GBT1771-2007 after for 24 hours, anticorrosive paint low defect graphite after 160h
The paint film of the embodiment 2 of alkene slurry gets rusty grade for S1.
3, the performance of the anticorrosive paint embodiment 3 of low defect graphene slurry
By percentage to the quality, take the anticorrosive paint of the embodiment 3 of 4% anticorrosive paint low defect graphene slurry with low
Defect graphene slurry is mixed with 36% methyl diphenylene diisocyanate curing agent and 60% polyurethane solutions, according to
GBT1771-2007 makes 100 μm of standard jigs, and control sample 3 is 36% methyl diphenylene diisocyanate for being not added with graphene
Curing agent is mixed with 60% polyurethane solutions, according to GBT1771-2007 preparation, is carried out in resistance to by national standard GBT1771-2007
Property salt spray test, the paint film of control sample 3 grade of getting rusty is S1, anticorrosive paint low defect graphene slurry after 2300h after 1500h
Embodiment 3 paint film get rusty grade be S1.
Test example 2
By percentage to the quality, the Examples 1 to 8 of 2.5% anticorrosive paint low defect graphene slurry and right is taken respectively
The graphene slurry of ratio 1~2 occupies the multifunctional aqueous acrylic primer of master worker after mixing according to GBT1771- with 97.5%
2007 100 μm of standard jigs of production, carry out resistance to neutral salt spray test, anticorrosive paint low defect stone by national standard GBT1771-2007
The grade of getting rusty of the corresponding paint film of graphene slurry of the Examples 1 to 8 and comparative example 1~2 of black alkene slurry reaches the time of S1
It is shown in Table 1.1 anticorrosive paint of the table Examples 1 to 8 of low defect graphene slurry and the graphene slurry of comparative example 1~2 are corresponding
The grade of getting rusty of paint film reaches the time of S1
| Grade of getting rusty reaches the time (h) of S1 | |
| Embodiment 1 | 120 |
| Embodiment 2 | 114 |
| Embodiment 3 | 126 |
| Embodiment 4 | 130 |
| Embodiment 5 | 138 |
| Embodiment 6 | 117 |
| Embodiment 7 | 108 |
| Embodiment 8 | 103 |
| Comparative example 1 | 30 |
| Comparative example 2 | 91 |
The experimental results showed that anticorrosive paint is good with the salt spray resistance of the Examples 1 to 8 of low defect graphene slurry,
The time that the grade of getting rusty of corresponding paint film reaches S1 is all larger than 100h.
Claims (10)
1. a kind of anticorrosive paint low defect graphene composition, which is characterized in that including graphene and dispersing agent；
The dispersing agent is that dodecyl sodium sulfate, cetyl diphenyl ether sodium monosulfate, benzene sulfonamide acid phenenyl ester, alkyl are more
Polydextrose, ethylene oxide and epoxy propane copolymer, fatty alcohol alkoxy compound, hydroxypropyl methyl cellulose, polyethylene glycol,
At least one of silane coupling agent, polyvinylpyrrolidone, polyvinylpyrrolidone derivative；
In the Raman spectrum of the graphene, D peak intensity is lower than the 1/10 of G peak intensity.
2. a kind of anticorrosive paint low defect graphene slurry, which is characterized in that including graphene, dispersing agent and solvent；
The dispersing agent is that dodecyl sodium sulfate, cetyl diphenyl ether sodium monosulfate, benzene sulfonamide acid phenenyl ester, alkyl are more
Polydextrose, ethylene oxide and epoxy propane copolymer, fatty alcohol alkoxy compound, hydroxypropyl methyl cellulose, polyethylene glycol,
At least one of silane coupling agent, polyvinylpyrrolidone, polyvinylpyrrolidone derivative；
In the Raman spectrum of the graphene, D peak intensity is lower than the 1/10 of G peak intensity.
3. anticorrosive paint according to claim 2 low defect graphene slurry, which is characterized in that the anticorrosive paint is used
Low defect graphene slurry further includes stabilizer, and the stabilizer is butadiene-styrene rubber, nitrile rubber, Kynoar, polytetrafluoro
Ethylene, sodium carboxymethylcellulose, Arabic gum, organic modified bentonite, gelatin, xanthan gum, guar gum, sodium alginate, shell are poly-
At least one of sugar.
4. anticorrosive paint according to claim 2 low defect graphene slurry, which is characterized in that the solvent is second
Alcohol, n-butanol, propylene glycol, toluene, dimethylbenzene, N-Methyl pyrrolidone, epoxy active diluent, 1,4- butanediol two shrink sweet
At least one of oily ether, water.
5. anticorrosive paint according to claim 2 low defect graphene slurry, which is characterized in that the graphene divides
The weight ratio of powder and solvent is 4~20:1~5:73~97.9.
6. anticorrosive paint according to claim 2 low defect graphene slurry, which is characterized in that the anticorrosive paint is used
Low defect graphene slurry further includes auxiliary agent, and the auxiliary agent is at least one of thickener, thixotropic agent, levelling agent.
7. a kind of preparation method of anticorrosive paint as claimed in claim 2 low defect graphene slurry, which is characterized in that packet
Include following steps:
Dispersing agent is dissolved in solvent, graphene is then added, is ground after mixing, obtains anticorrosive paint low defect graphite
Alkene slurry.
8. the anticorrosive paint according to claim 7 preparation method of low defect graphene slurry, which is characterized in that including
Following steps:
Dispersing agent is dissolved in solvent, graphene is then added, is ground after mixing, stabilizer and/or auxiliary agent is added, obtains
Anticorrosive paint low defect graphene slurry；The auxiliary agent is at least one of thickener, thixotropic agent, levelling agent.
9. the anticorrosive paint according to claim 7 or 8 preparation method of low defect graphene slurry, which is characterized in that
The granularity D50 of graphene is 5~100 μm in the anticorrosive paint low defect graphene slurry.
10. a kind of anticorrosive paint, which is characterized in that including claim 2~6 described in any item anticorrosive paints low defect stone
Black alkene slurry, organic coating.
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