CN109280457A - A kind of novel graphene slurry modified epoxy zinc powder anticorrosive paint and preparation method thereof - Google Patents
A kind of novel graphene slurry modified epoxy zinc powder anticorrosive paint and preparation method thereof Download PDFInfo
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- CN109280457A CN109280457A CN201810869612.2A CN201810869612A CN109280457A CN 109280457 A CN109280457 A CN 109280457A CN 201810869612 A CN201810869612 A CN 201810869612A CN 109280457 A CN109280457 A CN 109280457A
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
-
- C—CHEMISTRY; METALLURGY
- 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
- C09D7/70—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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0893—Zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
Abstract
A kind of novel graphene slurry modified epoxy zinc powder anticorrosive paint and preparation method thereof, the composition of anticorrosive paint includes epoxy resin, graphene-epoxy resin slurry, metal zinc, functional stuffing and other function additives, by preparing good dispersion, electric conductivity excellent graphene-epoxy resin slurry, it is effectively improved graphene and directly adds caused agglomeration, the dosage of zinc powder is reduced simultaneously, and compounded with epoxy resin and functional stuffing, improve dispersibility of the graphene in coating；It is combined using sand milling with high speed dispersion technique in terms of preparation process, realize stable dispersion of the graphene in coating, it ensure that coating fineness, make the coating of preparation compared with conventional epoxy zinc-rich paint, adhesive force is good, salt spray resistance is excellent, has outstanding antiseptic property, compared with conventional epoxy zinc-rich paint, anticorrosive paint zinc content prepared by the present invention is greatly decreased, salt spray resistance is up to 4000h, adhesive force > 8MPa, and application prospect is extensive.
Description
Technical field
The present invention relates to chemical material field, specifically a kind of novel graphene slurry modified epoxy zinc powder anti-corrosion is applied
Material and preparation method thereof.
Background technique
Graphene has the advantage that graphene applied to epoxy zinc powder anticorrosive paint as the outstanding carbon material of a new generation
With excellent electric conductivity, electron propagation ducts can be formed between metal zinc, it is tightly packed without a large amount of zinc powders, it reduces
Zinc powder dosage, while the later period can connect unreacted zinc powder around zinc salt, improve the utilization rate of zinc powder, economize on resources；Graphite
The addition of alkene improves coating bonding strength instead of part zinc powder；Graphene surface has hydrophobic effect, the contact angle with water
Very big, materials water-resistant can significantly improve；The unique two-dimensional slice structure of graphene can be layering, formed hydrone, chlorine from
The small molecules corrosive medium such as son be difficult to by fine and close isolation layer, the shielding properties of material is substantially improved.Epoxy zinc-enriched paint is
The steel structure equipment aspect such as ship, marine facility, bridge, large scale equipment and all kinds of heavy constructions is most important, using most universal
One of anticorrosive coating kind, patent CN107345110A discloses a kind of epoxy zinc rich primer preparation for improving antiseptic property
Graphene is directly appended in coating system by method, inventor, is equipped with 20%~30% metal zinc and is filled out with 30%~50%
Material, the coating salt spray resistance of preparation are increased to thousands of hours, and store and stablize, are not likely to produce and sink to the bottom phenomenon；Patent
CN106634438A discloses a kind of modified solvent type epoxy zinc-rich paint preparation method of graphene, and inventor is first by graphene
Surface carries out benzene sulfonic acid functional modification, is then added in coating system, experimental study shows modified graphene additive amount not
To 1% amount can be realized that salt spray resistance is promoted to conventional epoxy zinc-rich paint 2 times.
Epoxy zinc-enriched paint relies primarily on the characteristic that the zinc powder metal active in system is better than steel substrate, carries out yin to steel
Pole protection, while the zinc salt generated after zinc powder oxidation can fill the defect of coating, stop the infiltration of corrosive medium, play and review one's lessons by oneself
Multiple effect.Therefore the superiority and inferiority of epoxy zinc-enriched paint performance and the height of zinc content are closely related.However the metal of high-content
It is poor that zinc powder (70%~90%) easily leads to zinc rich primer bonding strength, and most of epoxy zinc-enriched paint adhesive force are not more than 5MPa；
And since part zinc powder is produced as in the later period zinc salt of dielectricity, so that not being connected to mutually between metal zinc, to a certain degree
On also affect the service efficiency of zinc powder.Therefore, the zinc content in epoxy zinc powder anticorrosive paint how is reduced, zinc powder bottom is improved
The bonding strength of paint guarantees that the antiseptic property of epoxy zinc-enriched paint is research hotspot instantly, before having boundless market
Scape.
Summary of the invention
The purpose of the present invention is to solve the deficiency of above-mentioned technical problem, the present invention proposes a kind of novel graphene slurry
Modified epoxy zinc powder anticorrosive paint and preparation method thereof, first is that by preparing polymolecularity graphene-epoxy resin slurry, substantially
Improve dispersibility of the graphene in coating；Second is that innovative being sanded effectively is combined with high speed dispersion technique, graphite is realized
Stable dispersion of the alkene in coating system, while reducing the dosage of zinc powder guarantees coating fineness, strong to the connection that improves coating
Degree and antiseptic property.
Present invention deficiency to solve above-mentioned technical problem and the technical solution adopted is that: a kind of novel graphene slurry changes
Property epoxy zinc powder anticorrosive paint, the mass ratio of including first component and second component, the first component and second component is 7:1~9:1, is pressed
Parts by weight, first component include 20~30 parts of epoxy resin, 3~6 parts of graphenes-epoxy resin slurry, 40~50 parts of metallic zincs
Powder, 10~15 parts of functional stuffings, 0.5~1 part of dispersing agent, 0.5~1 portion of anti-settling agent, 0.5~1 part of defoaming agent, 5~10 parts of mixing
Solvent, second component include 40~60 parts of polyamide curing agents and 40~60 parts of mixed solvents；Wherein, the graphene-asphalt mixtures modified by epoxy resin
In rouge slurry, the weight of graphene is the graphene-epoxy resin slurry total weight 3~5%.
A kind of preparation method of novel graphene slurry modified epoxy zinc powder anticorrosive paint, comprising the following steps:
(1) it prepares graphene-epoxy resin slurry: in parts by weight, weighing 3~5 parts of graphenes, 95~97 parts of epoxy resin,
It is put into dispersion tank and mixes, while 0.3~0.5 part of dispersing agent, 0.5~1 part of surfactant progress high speed dispersion, dispersion is added
Sand milling pearl is added after uniformly, slurry is ground to fineness≤10 μm；Wherein, the graphene be 3 layers of graphene, 5 layers of graphene,
One or more of 10 layers of graphene；
(2) in parts by weight, 20~30 parts of epoxy resin are first weighed to be placed in dispersion tank, adds graphene-epoxy resin grout
3~6 parts, 10~15 parts of functional stuffing, 0.5~1 part of dispersing agent, 0.5~1 part of anti-settling agent, 0.5~1 part of defoaming agent are expected, 1000
High speed dispersion is carried out under the revolving speed of~1500r/min；
(3) after being uniformly dispersed, sand milling pearl is added in dispersion tank and continues to be dispersed to uniformly, then filters, adds metal zinc
40~50 parts, the high speed dispersion under the revolving speed of 1500~2000r/min, and slurry is ground to fineness≤70 μm, then it is added
First component is made in 5~10 parts of progress viscosity of the coating adjustings of mixed solvent；
(4) 40~60 parts of polyamide curing agent, 40~60 parts of mixed solvent are taken, is put into dispersion tank, in 1500~2000r/min
Revolving speed under high speed dispersion, after mixing be made second component；
(5) in mass ratio it is that 7:1~9:1 is uniformly mixed by first component and second component, obtains the modified ring of novel graphene slurry
Oxygen zinc powder anticorrosive paint.
Further, one or more of the model 601,6101,618,616 of the epoxy resin.
Further, the functional stuffing is mica powder, in glass flake, powdered whiting, talcum powder, blanc fixe
It is one or more of.
Further, the metal zinc is 325 mesh spherical zinc powders, in 500 mesh spherical zinc powders, 800 mesh spherical zinc powders
One or more.
Further, the model of dispersing agent described in the step (1) and the step (2) is BYK-110, BYK-
163, one or more of 5100.
Further, the anti-settling agent be one of fumed silica, organic modified bentonite, polyamide wax pulp or
It is several.
Further, one or more of the model 6800 of the defoaming agent, 650A.
Further, mixed solvent described in the step (3) and the step (4) is by dimethylbenzene: n-butanol is pressed
The mass ratio of 3:2~4:1 is mixed to prepare.
Further, the surfactant is sodium lignin sulfonate, in neopelex, fatty glyceride
One or more.
The beneficial effects of the present invention are:
The present invention is to provide a kind of novel graphene slurry modified epoxy zinc powder anticorrosive paints and preparation method thereof, in raw material side
Face, by preparing good dispersion, electric conductivity excellent graphene-epoxy resin slurry, the effective graphene that improves directly is added
Caused agglomeration, while compared to functional modification graphene, graphene-epoxy resin slurry surface nonfunctional modification
Group, it is ensured that its excellent electric conductivity；In preparation method, by graphene-epoxy resin slurry and epoxy resin and its
Its antirust filler compounding makes graphene epoxy zinc powder anticorrosive paint obtained by the dispersing technology of high speed dispersion after being first sanded
Have the characteristics that high attachment, antiseptic property are good, while reducing the dosage of zinc powder, guarantees that coating fineness, this method can be real well
Existing stable dispersion of the graphene in coating, reduces the reunion of graphene, the bonding strength of reinforced epoxy zinc powder coating makes to prepare
Coating compared with conventional epoxy zinc-rich paint, adhesive force is good, salt spray resistance is excellent, has outstanding antiseptic property.
Detailed description of the invention
Fig. 1 is the sandblasting steel plate scribing line salt fog 1000h test chart for being coated with anticorrosive paint；
Fig. 2 is to be coated with the sandblasting steel plate of anticorrosive paint not crossing salt fog 4000h test chart.
Specific embodiment
The present invention is further elaborated combined with specific embodiments below.
Specific embodiment:
A kind of novel graphene slurry modified epoxy zinc powder anticorrosive paint, in terms of raw material, by preparing good dispersion, electric conductivity
Can excellent graphene-epoxy resin slurry, the effective graphene that improves directly adds caused agglomeration, at the same compared to
Functional modification graphene, graphene-epoxy resin slurry surface nonfunctional modification group, it is ensured that its excellent electric conductivity
Energy；The anticorrosive paint includes first component and second component, and the mass ratio of the first component and second component is 7:1~9:1, by weight
Number, first component include 20~30 parts of epoxy resin, 3~6 parts of graphenes-epoxy resin slurry, 40~50 parts of metal zincs, 10
~15 parts of functional stuffings, 0.5~1 part of dispersing agent, 0.5~1 portion of anti-settling agent, 0.5~1 part of defoaming agent, 5~10 parts of mixed solvents,
Second component includes 40~60 parts of polyamide curing agents and 40~60 parts of mixed solvents；Wherein, the graphene-epoxy resin slurry
In, the weight of graphene is the graphene-epoxy resin slurry total weight 3~5%.
A kind of preparation method of novel graphene slurry modified epoxy zinc powder anticorrosive paint, by graphene-epoxy resin grout
Material is compounded with epoxy resin and other antirust fillers, by the dispersing technology of high speed dispersion after being first sanded, makes graphene obtained
Epoxy zinc powder anticorrosive paint has the characteristics that high attachment, antiseptic property are good, while reducing the dosage of zinc powder, guarantees coating fineness,
This method can realize stable dispersion of the graphene in coating well, reduce the reunion of graphene, reinforced epoxy zinc powder coating
Bonding strength, make preparation coating compared with conventional epoxy zinc-rich paint, adhesive force is good, salt spray resistance is excellent, it is outstanding to have
Antiseptic property, specifically includes the following steps:
(1) it prepares graphene-epoxy resin slurry: in parts by weight, weighing 3~5 parts of graphenes, 95~97 parts of epoxy resin,
It is put into dispersion tank and mixes, while 0.3~0.5 part of dispersing agent, 0.5~1 part of surfactant progress high speed dispersion, dispersion is added
Sand milling pearl is added after uniformly, slurry is ground to fineness≤10 μm；Wherein, the graphene be 3 layers of graphene, 5 layers of graphene,
One or more of 10 layers of graphene；
(2) in parts by weight, 20~30 parts of epoxy resin are first weighed to be placed in dispersion tank, adds graphene-epoxy resin grout
3~6 parts, 10~15 parts of functional stuffing, 0.5~1 part of dispersing agent, 0.5~1 part of anti-settling agent, 0.5~1 part of defoaming agent are expected, 1000
High speed dispersion is carried out under the revolving speed of~1500r/min；
(3) after being uniformly dispersed, sand milling pearl is added in dispersion tank and continues to be dispersed to uniformly, then filters, adds metal zinc
40~50 parts, the high speed dispersion under the revolving speed of 1500~2000r/min, and slurry is ground to fineness≤70 μm, then it is added
First component is made in 5~10 parts of progress viscosity of the coating adjustings of mixed solvent；
(4) 40~60 parts of polyamide curing agent, 40~60 parts of mixed solvent are taken, is put into dispersion tank, in 1500~2000r/min
Revolving speed under high speed dispersion, after mixing be made second component；
(5) in mass ratio it is that 7:1~9:1 is uniformly mixed by first component and second component, obtains the modified ring of novel graphene slurry
Oxygen zinc powder anticorrosive paint.
Further, one or more of the model 601,6101,618,616 of the epoxy resin.
Further, the functional stuffing is mica powder, in glass flake, powdered whiting, talcum powder, blanc fixe
It is one or more of.
Further, the metal zinc is 325 mesh spherical zinc powders, in 500 mesh spherical zinc powders, 800 mesh spherical zinc powders
One or more.
Further, the model of dispersing agent described in the step (1) and the step (2) be BYK-110,
One or more of BYK-163,5100.
Further, the anti-settling agent be one of fumed silica, organic modified bentonite, polyamide wax pulp or
It is several.
Further, one or more of the model 6800 of the defoaming agent, 650A.
Further, mixed solvent described in the step (3) and the step (4) is by dimethylbenzene: n-butanol is pressed
The mass ratio of 3:2~4:1 is mixed to prepare.
Further, the surfactant is sodium lignin sulfonate, in neopelex, fatty glyceride
One or more.
Embodiment 1
A kind of novel graphene slurry modified epoxy zinc powder anticorrosive paint, including first component and second component, the first component and second
The mass ratio of component is 7:1, and in parts by weight, first component includes 20 parts of epoxy resin, 3 parts of graphenes-epoxy resin slurry, 40
Part metal zinc, 10 parts of functional stuffings, 0.5 part of dispersing agent, 0.5 portion of anti-settling agent, 0.5 part of defoaming agent, 5 parts of mixed solvents, second group
Divide includes 40 parts of polyamide curing agents and 40 parts of mixed solvents；Wherein, in the graphene-epoxy resin slurry, graphene
Weight is the graphene-epoxy resin slurry total weight 3%；The functional stuffing includes 5 parts of mica powders and 5 parts of talcums
Powder；The model 5100 of the dispersing agent；The anti-settling agent is fumed silica；The model of the defoaming agent
6800；The mixed solvent is by dimethylbenzene: n-butanol is mixed to prepare by the mass ratio of 3:2.
A kind of preparation method of novel graphene slurry modified epoxy zinc powder anticorrosive paint, comprising the following steps:
(1) it prepares graphene-epoxy resin slurry: in parts by weight, weighing 3 parts of graphenes, 95 parts of epoxy resin, be put into dispersion
It is mixed in tank, while 0.3 part of 5100 dispersing agent, 0.5 part of surfactant progress high speed dispersion is added, sand is added after being uniformly dispersed
It grinds pearl and slurry is ground to fineness≤10 μm；Wherein, the graphene is one of 3 layers of graphene, 5 layers of graphene or several
Kind, the surfactant is one or more of sodium lignin sulfonate, neopelex；
(2) in parts by weight, 20 parts of epoxy resin are first weighed to be placed in dispersion tank, adds graphene-epoxy resin slurry 3
Part, 5 parts of mica powder and 5 parts of talcum powder, 0.5 part of 5100 dispersing agent, 0.5 part of fumed silica, 6800 defoaming agents 0.5
Part, high speed dispersion is carried out under the revolving speed of 1000~1500r/min；
(3) after being uniformly dispersed, sand milling pearl is added in dispersion tank and continues to be dispersed to uniformly, then filters, adds metal zinc
40 parts, the high speed dispersion under the revolving speed of 1500~2000r/min, and slurry is ground to fineness≤70 μm, mixing is then added
First component is made in 5 parts of progress viscosity of the coating adjustings of solvent；
(4) 40 parts of polyamide curing agent, 40 parts of mixed solvent are taken, is put into dispersion tank, under the revolving speed of 1500~2000r/min
Second component is made in high speed dispersion after mixing；
(5) first component and second component are uniformly mixed in mass ratio for 7:1, obtain novel graphene slurry modified epoxy zinc powder
Anticorrosive paint.
Embodiment 2
A kind of novel graphene slurry modified epoxy zinc powder anticorrosive paint, including first component and second component, the first component and second
The mass ratio of component is 8:1, and in parts by weight, first component includes 25 parts of epoxy resin, 5 parts of graphenes-epoxy resin slurry, 45
Part metal zinc, 12 parts of functional stuffings, 0.8 part of dispersing agent, 0.8 portion of anti-settling agent, 0.8 part of defoaming agent, 8 parts of mixed solvents, second group
Divide includes 50 parts of polyamide curing agents and 50 parts of mixed solvents；Wherein, in the graphene-epoxy resin slurry, graphene
Weight is the graphene-epoxy resin slurry total weight 4%；The functional stuffing includes 8 parts of mica powders and 4 parts of barites
Powder；The model BYK-110 of the dispersing agent；The anti-settling agent is polyamide wax pulp；The model 6800 of the defoaming agent；Institute
Mixed solvent is stated by dimethylbenzene: n-butanol is mixed to prepare by the mass ratio of 5:2.
A kind of preparation method of novel graphene slurry modified epoxy zinc powder anticorrosive paint, comprising the following steps:
(1) it prepares graphene-epoxy resin slurry: in parts by weight, weighing 4 parts of graphenes, 96 parts of epoxy resin, be put into dispersion
It is mixed in tank, while 0.4 part of BYK-110 dispersing agent, 0.8 part of surfactant progress high speed dispersion is added, added after being uniformly dispersed
Enter that pearl is sanded and slurry is ground to fineness≤10 μm；Wherein, the graphene is one of 3 layers of graphene, 10 layers of graphene
Or it is several, the surfactant is one or more of sodium lignin sulfonate, fatty glyceride；
(2) in parts by weight, 25 parts of epoxy resin are first weighed to be placed in dispersion tank, adds graphene-epoxy resin slurry 5
Part, 8 parts of mica powder and 4 parts of blanc fixe, 0.8 part of BYK-110 dispersing agent, 0.8 part of polyamide wax pulp, 0.8 part of 6800 defoaming agent,
High speed dispersion is carried out under the revolving speed of 1000~1500r/min；
(3) after being uniformly dispersed, sand milling pearl is added in dispersion tank and continues to be dispersed to uniformly, then filters, adds metal zinc
45 parts, the high speed dispersion under the revolving speed of 1500~2000r/min, and slurry is ground to fineness≤70 μm, mixing is then added
First component is made in 8 parts of progress viscosity of the coating adjustings of solvent；
(4) 50 parts of polyamide curing agent, 50 parts of mixed solvent are taken, is put into dispersion tank, under the revolving speed of 1500~2000r/min
Second component is made in high speed dispersion after mixing；
(5) first component and second component are uniformly mixed in mass ratio for 8:1, obtain novel graphene slurry modified epoxy zinc powder
Anticorrosive paint.
Embodiment 3
A kind of novel graphene slurry modified epoxy zinc powder anticorrosive paint, including first component and second component, the first component and second
The mass ratio of component is 9:1, and in parts by weight, first component includes 30 parts of epoxy resin, 6 parts of graphenes-epoxy resin slurry, 50
Part metal zinc, 15 parts of functional stuffings, 1 part of dispersing agent, 1 portion of anti-settling agent, 1 part of defoaming agent, 10 parts of mixed solvents, second component include
60 parts of polyamide curing agents and 60 parts of mixed solvents；Wherein, in the graphene-epoxy resin slurry, the weight of graphene is
The graphene-epoxy resin slurry total weight 5%；The functional stuffing includes 8 parts of glass flakes and 7 parts of talcum powder；Institute
State the model 5100 of dispersing agent；The anti-settling agent is fumed silica；The model 650A of the defoaming agent；The mixing
Solvent is by dimethylbenzene: n-butanol is mixed to prepare by the mass ratio of 4:1.
A kind of preparation method of novel graphene slurry modified epoxy zinc powder anticorrosive paint, comprising the following steps:
(1) it prepares graphene-epoxy resin slurry: in parts by weight, weighing 5 parts of graphenes, 97 parts of epoxy resin, be put into dispersion
It is mixed in tank, while 0.5 part of 5100 dispersing agent, 1 part of surfactant progress high speed dispersion is added, be added and be sanded after being uniformly dispersed
Slurry is ground to fineness≤10 μm by pearl；Wherein, the graphene be one or more of 5 layers of graphene, 10 layers of graphene,
The surfactant is one or more of fatty glyceride, neopelex；
(2) in parts by weight, 30 parts of epoxy resin are first weighed to be placed in dispersion tank, adds graphene-epoxy resin slurry 6
Part, 8 parts of glass flake and 7 parts of talcum powder, 1 part of 5100 dispersing agent, 1 part of fumed silica, 1 part of 650A defoaming agent, 1000
High speed dispersion is carried out under the revolving speed of~1500r/min；
(3) after being uniformly dispersed, sand milling pearl is added in dispersion tank and continues to be dispersed to uniformly, then filters, adds metal zinc
50 parts, the high speed dispersion under the revolving speed of 1500~2000r/min, and slurry is ground to fineness≤70 μm, mixing is then added
First component is made in 10 parts of progress viscosity of the coating adjustings of solvent；
(4) 60 parts of polyamide curing agent, 60 parts of mixed solvent are taken, is put into dispersion tank, under the revolving speed of 1500~2000r/min
Second component is made in high speed dispersion after mixing；
(5) first component and second component are uniformly mixed in mass ratio for 9:1, obtain novel graphene slurry modified epoxy zinc powder
Anticorrosive paint.
The present invention has carried out antiseptic property test to the graphene epoxy zinc powder anticorrosive paint of preparation: according to HG/T3668-
Novel graphene epoxy zinc powder anticorrosive paint made from embodiment 1 is sprayed at sandblasting steel plate, film thickness by 2009 standard requirements
For (90 ± 10) μm, and cross is crossed, and sandblasting steel plate is placed in salt spray test chamber, routine observation corrosion condition；Such as Fig. 1 institute
Show, unidirectionally expanding erosion after 1000h, at scratch is 0.9mm, and non-scratch area is without blistering, get rusty, crack, peeling phenomenon.
According to HG/T3668-2009 standard requirements, novel graphene epoxy zinc powder anticorrosive paint made from embodiment 1 is sprayed
It is applied to sandblasting steel plate, film thickness is (90 ± 10) μm, is placed in salt spray test chamber, routine observation template corrosion condition；Such as Fig. 2
It is shown, after 4000h, coating surface without get rusty, blister, crack situation.
Novel graphene epoxy zinc powder anticorrosive paint in embodiment 2 is tested for the property, the results are shown in Table 1:
1 novel graphene epoxy zinc powder anticorrosive paint the performance test results of table
To the novel graphene epoxy zinc powder anticorrosive paint in embodiment 3, using to daraf(reciprocal of farad) testing coating adhesive force, retest
7 times, the results are shown in Table 2: tensile strength mean value is 8.47MPa, illustrates coating favorable reproducibility, adhesive force is preferable, with substrate
Attachment force is strong.
2 graphene epoxy zinc powder anticorrosive paint adhesive force test result of table
The foregoing description of the disclosed embodiments, only for can be realized professional and technical personnel in the field or use this hair
It is bright.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, originally
Invention is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein
Consistent widest scope.
Claims (10)
1. a kind of novel graphene slurry modified epoxy zinc powder anticorrosive paint, which is characterized in that including first component and second component, institute
The mass ratio for stating first component and second component is 7:1~9:1, and in parts by weight, first component includes 20~30 parts of epoxy resin, 3~6
Part graphene-epoxy resin slurry, 40~50 parts of metal zincs, 10~15 parts of functional stuffings, 0.5~1 part of dispersing agent, 0.5~1
Portion anti-settling agent, 0.5~1 part of defoaming agent, 5~10 parts of mixed solvents, second component include 40~60 parts of polyamide curing agents and 40~
60 parts of mixed solvents；Wherein, in the graphene-epoxy resin slurry, the weight of graphene is the graphene-epoxy resin
The 3 ~ 5% of slurry total weight.
2. a kind of preparation method of novel graphene slurry modified epoxy zinc powder anticorrosive paint as described in claim 1, special
Sign is, comprising the following steps:
(1) it prepares graphene-epoxy resin slurry: in parts by weight, weighing 3 ~ 5 parts of graphenes, 95 ~ 97 parts of epoxy resin, put
Enter in dispersion tank and mix, while 0.3 ~ 0.5 part of dispersing agent, 0.5 ~ 1 part of surfactant progress high speed dispersion is added, is uniformly dispersed
Sand milling pearl is added afterwards, slurry is ground to fineness≤10 μm；Wherein, the graphene is 3 layers of graphene, 5 layers of graphene, 10 layers
One or more of graphene；
(2) in parts by weight, 20~30 parts of epoxy resin are first weighed to be placed in dispersion tank, adds graphene-epoxy resin grout
3~6 parts, 10~15 parts of functional stuffing, 0.5~1 part of dispersing agent, 0.5~1 part of anti-settling agent, 0.5~1 part of defoaming agent are expected, 1000
High speed dispersion is carried out under the revolving speed of~1500r/min；
(3) after being uniformly dispersed, sand milling pearl is added in dispersion tank and continues to be dispersed to uniformly, then filters, adds metal zinc
40~50 parts, the high speed dispersion under the revolving speed of 1500~2000r/min, and slurry is ground to fineness≤70 μm, then it is added
First component is made in 5~10 parts of progress viscosity of the coating adjustings of mixed solvent；
(4) 40~60 parts of polyamide curing agent, 40~60 parts of mixed solvent are taken, is put into dispersion tank, in 1500~2000r/min
Revolving speed under high speed dispersion, after mixing be made second component；
(5) in mass ratio it is that 7:1~9:1 is uniformly mixed by first component and second component, obtains the modified ring of novel graphene slurry
Oxygen zinc powder anticorrosive paint.
3. a kind of preparation method of novel graphene slurry modified epoxy zinc powder anticorrosive paint as claimed in claim 2, special
Sign is, one or more of model 601,6101,618,616 of the epoxy resin.
4. a kind of preparation method of novel graphene slurry modified epoxy zinc powder anticorrosive paint as claimed in claim 2, special
Sign is that the functional stuffing is one of mica powder, glass flake, powdered whiting, talcum powder, blanc fixe or several
Kind.
5. a kind of preparation method of novel graphene slurry modified epoxy zinc powder anticorrosive paint as claimed in claim 2, special
Sign is that the metal zinc is one of 325 mesh spherical zinc powders, 500 mesh spherical zinc powders, 800 mesh spherical zinc powders or several
Kind.
6. a kind of preparation method of novel graphene slurry modified epoxy zinc powder anticorrosive paint as claimed in claim 2, special
Sign is, the model of dispersing agent described in the step (1) and the step (2) is BYK-110, BYK-163, in 5100
It is one or more of.
7. a kind of preparation method of novel graphene slurry modified epoxy zinc powder anticorrosive paint as claimed in claim 2, special
Sign is that the anti-settling agent is one or more of fumed silica, organic modified bentonite, polyamide wax pulp.
8. a kind of preparation method of novel graphene slurry modified epoxy zinc powder anticorrosive paint as claimed in claim 2, special
Sign is, one or more of the model 6800 of the defoaming agent, 650A.
9. a kind of preparation method of novel graphene slurry modified epoxy zinc powder anticorrosive paint as claimed in claim 2, special
Sign is that mixed solvent described in the step (3) and the step (4) is by dimethylbenzene: n-butanol is by 3:2~4:1's
Mass ratio is mixed to prepare.
10. a kind of preparation method of novel graphene slurry modified epoxy zinc powder anticorrosive paint as claimed in claim 2, special
Sign is that the surfactant is one of sodium lignin sulfonate, neopelex, fatty glyceride or several
Kind.
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Application publication date: 20190129 |