CN108329793B - Graphene modified anti-rust pigment anti-corrosion primer and preparation method thereof - Google Patents
Graphene modified anti-rust pigment anti-corrosion primer and preparation method thereof Download PDFInfo
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- CN108329793B CN108329793B CN201711300962.9A CN201711300962A CN108329793B CN 108329793 B CN108329793 B CN 108329793B CN 201711300962 A CN201711300962 A CN 201711300962A CN 108329793 B CN108329793 B CN 108329793B
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 131
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 131
- 239000000049 pigment Substances 0.000 title claims abstract description 92
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000005260 corrosion Methods 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims description 28
- 239000002002 slurry Substances 0.000 claims abstract description 65
- 239000003822 epoxy resin Substances 0.000 claims abstract description 39
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 39
- 239000000945 filler Substances 0.000 claims abstract description 27
- 239000003085 diluting agent Substances 0.000 claims abstract description 21
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 72
- 238000003756 stirring Methods 0.000 claims description 56
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 51
- 239000000843 powder Substances 0.000 claims description 29
- 239000002270 dispersing agent Substances 0.000 claims description 24
- 239000012752 auxiliary agent Substances 0.000 claims description 23
- 239000008096 xylene Substances 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 22
- 239000012046 mixed solvent Substances 0.000 claims description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000006185 dispersion Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 11
- 238000000227 grinding Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000004576 sand Substances 0.000 claims description 10
- 238000009210 therapy by ultrasound Methods 0.000 claims description 10
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 8
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 8
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical group O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000000440 bentonite Substances 0.000 claims description 4
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- 229910021485 fumed silica Inorganic materials 0.000 claims description 4
- 239000010445 mica Substances 0.000 claims description 4
- 229910052618 mica group Inorganic materials 0.000 claims description 4
- NVKTUNLPFJHLCG-UHFFFAOYSA-N strontium chromate Chemical compound [Sr+2].[O-][Cr]([O-])(=O)=O NVKTUNLPFJHLCG-UHFFFAOYSA-N 0.000 claims description 4
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical group O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 3
- NDKWCCLKSWNDBG-UHFFFAOYSA-N zinc;dioxido(dioxo)chromium Chemical compound [Zn+2].[O-][Cr]([O-])(=O)=O NDKWCCLKSWNDBG-UHFFFAOYSA-N 0.000 claims description 3
- 238000007873 sieving Methods 0.000 claims 5
- 239000004698 Polyethylene Substances 0.000 claims 2
- 229910052782 aluminium Inorganic materials 0.000 claims 2
- -1 polyethylene Polymers 0.000 claims 2
- 229920000573 polyethylene Polymers 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 1
- 239000011541 reaction mixture Substances 0.000 claims 1
- 239000000454 talc Substances 0.000 claims 1
- 229910052623 talc Inorganic materials 0.000 claims 1
- 235000012222 talc Nutrition 0.000 claims 1
- 239000003973 paint Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 4
- 229910000975 Carbon steel Inorganic materials 0.000 abstract description 3
- 239000010962 carbon steel Substances 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 239000004593 Epoxy Substances 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
Classifications
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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
-
- 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
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
- C09D5/084—Inorganic compounds
-
- 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
- C09D5/103—Anti-corrosive paints containing metal dust containing Al
-
- 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
- C08K2003/0812—Aluminium
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2272—Ferric oxide (Fe2O3)
-
- 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
- C08K3/04—Carbon
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a graphene modified anti-rust pigment anti-corrosion primer which is prepared from the following components in percentage by weight: 18-30% of epoxy resin, 5-15% of graphene slurry, 3-10% of flake pigment, 20-30% of anti-rust pigment, 10-20% of filler, 0.4-0.8% of dispersing aid and 20-30% of diluent. The high-strength corrosion-resistant paint has good mechanical properties and universality for various base materials, has good adhesive force for galvanized, chromeplated and lightly polished carbon steel base materials, and has excellent corrosion resistance.
Description
Technical Field
The invention relates to the technical field of nano polymer composite materials, in particular to graphene modified anti-rust pigment anti-corrosion primer and a preparation method thereof.
Background
The epoxy iron oxide red primer is a traditional coating for corrosion protection, and has a certain corrosion prevention effect on iron and iron alloy. However, the actual protection effect is not outstanding due to the limitation of the anticorrosion effectiveness of the constituent materials, and how to improve the anticorrosion performance is a technical problem to be solved in the field.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the graphene modified anti-rust pigment anti-corrosion primer which has good mechanical properties, universality for various base materials, good adhesion for galvanized, chromeplated and lightly polished carbon steel base materials and excellent anti-corrosion properties.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the graphene modified anti-rust pigment anti-corrosion primer is prepared from the following components in percentage by weight:
preferably, the epoxy resin is any one or more of E-44 type epoxy resin, E-20 type epoxy resin and E-02 type epoxy resin.
Preferably, the flake pigment is any one or two of mica powder, glass flake and flake aluminum powder; the antirust pigment is any one or more of iron red, zinc yellow and strontium yellow.
Preferably, the filler is any one or more of talcum powder, lithopone and precipitated barium sulfate.
Preferably, the anti-settling auxiliary agent is any one or more of organic bentonite and fumed silica.
Preferably, the diluent is any one or more of xylene, propylene glycol methyl ether acetate and butanol.
Preferably, the graphene slurry consists of graphene powder, a dispersant, xylene and butanol, and the graphene solid content is 10%.
Preferably, in the graphene slurry, the graphene powder is 3-10 layers of high-purity graphene powder, the dispersing agent is a 7163A type dispersing agent, and the volume ratio of the xylene to the butanol is 4: 1.
The invention also relates to a preparation method of the graphene modified anti-rust pigment anti-corrosion primer, which comprises the following steps:
s101, preparing graphene slurry: adding a dispersing agent into a mixed solvent consisting of dimethylbenzene and butanol, uniformly stirring, adding graphene powder, stirring, and performing ultrasonic dispersion to obtain the graphene-based composite material;
s102, preparing other components: preparing epoxy resin, graphene slurry, flake pigment, antirust pigment, filler, anti-settling auxiliary agent and diluent according to a ratio;
s103, mixing preparation: uniformly mixing the epoxy resin and the diluent, adding the flake pigment, the antirust pigment, the filler, the anti-settling auxiliary agent and the graphene slurry, uniformly stirring, grinding until the fineness reaches below 40 mu m, and filtering to obtain the anti-settling coating.
Further, in step S101, the preparation of the graphene slurry specifically includes: adding a dispersing agent into a mixed solvent consisting of dimethylbenzene and butanol, uniformly stirring, adding graphene powder, stirring for 0.5-1 h at a stirring speed of 250-350 r/min, dispersing by using an ultrasonic disperser under the conditions of ultrasonic wave of 8s, intermittent operation of 20s and total ultrasonic wave time of 2h, and cooling by using circulating water during dispersion to keep the temperature of the slurry at 25 +/-3 ℃.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the preparation method, the graphene slurry is prepared by pre-dispersing graphene, so that the problems of easy agglomeration, difficult dispersion, poor dispersion stability and the like of the graphene are solved, and the good stability of the graphene modified anti-rust pigment anti-corrosion primer is ensured;
2. according to the invention, the excellent mechanical properties of graphene are utilized to realize the enhancement and toughening of the coating, so that the mechanical properties of the coating are improved;
3. the invention utilizes the complementary and mutual filling of gaps between the large flake pigment and the small flake nano material graphene to form a labyrinth effect, and increases the barrier capability of the coating on corrosive media, thereby improving the corrosion resistance of the coating;
4. the graphene modified anti-rust pigment anti-corrosion primer disclosed by the invention has good adhesive force to galvanized, chromeplated and lightly polished carbon steel substrates, and has excellent anti-corrosion performance.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
The starting materials used in the following examples of the present invention are commercially available commercial products and are commercially available, unless otherwise specified.
The invention relates to a graphene modified anti-rust pigment anti-corrosion primer which is prepared from the following components in percentage by weight: 18-30% of epoxy resin, 5-15% of graphene slurry, 3-10% of flake pigment, 20-30% of anti-rust pigment, 10-20% of filler, 0.4-0.8% of dispersing aid and 20-30% of diluent.
Preferably, the epoxy resin is any one or more of E-44 type epoxy resin, E-20 type epoxy resin and E-02 type epoxy resin. The flake pigment is any one or two of mica powder, glass flakes and flake aluminum powder; the antirust pigment is any one or more of iron red, zinc yellow and strontium yellow. The filler is any one or more of talcum powder, lithopone and precipitated barium sulfate. The anti-settling auxiliary agent is any one or more of organic bentonite and fumed silica. The diluent is any one or more of xylene, propylene glycol methyl ether acetate and butanol. The graphene slurry is composed of graphene powder, a dispersing agent, xylene and butanol, and the solid content of graphene is 10%. In the graphene slurry, 3-10 layers of high-purity graphene powder are adopted as the graphene powder, the dispersing agent is 7163A type dispersing agent, the 3-10 layers of high-purity graphene powder are independently synthesized by Changzhou paint chemical research institute, the 7163A type dispersing agent is synthesized by Changzhou paint chemical research institute Limited, and the volume ratio of xylene to butanol is 4: 1.
Example 1
Preparation of graphene modified anti-rust pigment anti-corrosion primer Q-1
1.1, preparing graphene slurry
Adding 1g 7163A type dispersing agent into a mixed solvent composed of 44g xylene and butanol (the volume ratio of the xylene to the butanol is 4:1), uniformly stirring, then adding 5g of 3-10 layers of high-purity graphene powder, stirring for 0.5h at the stirring speed of 300r/min, dispersing by using an ultrasonic disperser under the conditions of ultrasonic wave for 8s, intermittent operation for 20s and total ultrasonic time for 2h, cooling by using circulating water during dispersion, and keeping the temperature of the slurry at 25 +/-3 ℃ to obtain graphene slurry for later use.
TABLE 1 distribution ratio table of components of graphene modified anti-corrosive pigment primer Q-1
1.2, mixing preparation of graphene modified anti-rust pigment anti-corrosion primer Q-1
According to the proportion in the table 1, after epoxy resin and a diluent are uniformly mixed, adding a flake pigment, an antirust pigment, a filler, graphene slurry and an anti-settling auxiliary agent, starting stirring at a stirring speed of 400r/min for 30min, after uniform mixing, grinding by using a horizontal sand mill until the fineness reaches below 40 mu m, and passing through a 120-mesh filter screen to obtain the graphene modified antirust pigment anticorrosive primer Q-1.
Example 2
Preparation of graphene modified anti-rust pigment anti-corrosion primer Q-2
2.1, preparing graphene slurry
Adding 1.5g of 7163A type dispersing agent into 43.5g of mixed solvent consisting of dimethylbenzene and butanol (the volume ratio of the dimethylbenzene to the butanol is 4:1), uniformly stirring, then adding 5g of 3-10 layers of high-purity graphene powder, stirring for 1h at the stirring speed of 250r/min, dispersing by using an ultrasonic disperser under the conditions of ultrasonic treatment for 8s, intermittent treatment for 20s and total ultrasonic treatment for 2h, cooling by using circulating water during dispersion, and keeping the slurry temperature at 25 +/-3 ℃ to obtain graphene slurry for later use.
TABLE 2 distribution ratio of components of graphene modified anti-corrosive paint Q-2
2.2 mixing preparation of graphene modified anti-rust pigment anti-corrosion primer Q-2
According to the proportion in the table 2, after epoxy resin and a diluent are uniformly mixed, adding a flake pigment, an antirust pigment, a filler, graphene slurry and an anti-settling auxiliary agent, starting stirring at a stirring speed of 400r/min for 30min, after uniform mixing, grinding by using a horizontal sand mill until the fineness reaches below 40 mu m, and passing through a 120-mesh filter screen to obtain the graphene modified antirust pigment anticorrosive primer Q-2.
Example 3
Preparation of graphene modified anti-rust pigment anti-corrosion primer Q-3
3.1, preparing graphene slurry
Adding 0.5g 7163A type dispersing agent into a mixed solvent composed of 44.5g xylene and butanol (the volume ratio of xylene to butanol is 4:1), uniformly stirring, then adding 5g of 3-10 layers of high-purity graphene powder, stirring for 1h at the stirring speed of 350r/min, dispersing by using an ultrasonic disperser under the conditions of ultrasonic treatment for 8s, intermittent treatment for 20s and total ultrasonic treatment for 2h, cooling by using circulating water during dispersion, and keeping the slurry temperature at 25 +/-3 ℃ to obtain graphene slurry for later use.
TABLE 3 distribution ratio of components of graphene modified anti-corrosive paint Q-3
3.2 mixing preparation of graphene modified anti-rust pigment anti-corrosion primer Q-3
According to the proportion in the table 3, after epoxy resin and a diluent are uniformly mixed, adding a flake pigment, an antirust pigment, a filler, graphene slurry and an anti-settling auxiliary agent, starting stirring at a stirring speed of 400r/min for 30min, after uniform mixing, grinding by using a horizontal sand mill until the fineness reaches below 40 mu m, and passing through a 120-mesh filter screen to obtain the graphene modified antirust pigment anticorrosive primer Q-3.
Example 4
Preparation of graphene modified anti-rust pigment anti-corrosion primer Q-4
4.1, preparing graphene slurry
Adding 1g 7163A type dispersing agent into a mixed solvent consisting of 44g xylene and butanol (the volume ratio of the xylene to the butanol is 4:1), uniformly stirring, then adding 5g of 3-10 layers of high-purity graphene powder, stirring for 1h at the stirring speed of 250r/min, dispersing by using an ultrasonic disperser under the conditions of ultrasonic treatment for 8s, intermittent treatment for 20s and total ultrasonic treatment time of 2h, cooling by using circulating water during dispersion, and keeping the slurry temperature at 25 +/-3 ℃ to obtain graphene slurry for later use.
TABLE 4 distribution ratio of components of graphene modified anti-corrosive pigment primer Q-4
4.2 mixing preparation of graphene modified anti-rust pigment anti-corrosion primer Q-4
According to the proportion in the table 4, after epoxy resin and a diluent are uniformly mixed, adding a flake pigment, an antirust pigment, a filler, graphene slurry and an anti-settling auxiliary agent, starting stirring at a stirring speed of 400r/min for 30min, after uniform mixing, grinding by using a horizontal sand mill until the fineness reaches below 40 mu m, and passing through a 120-mesh filter screen to obtain the graphene modified antirust pigment anticorrosive primer Q-4.
Example 5
Preparation of graphene modified anti-rust pigment anti-corrosion primer Q-5
5.1, preparing graphene slurry
Adding 1g 7163A type dispersing agent into a mixed solvent consisting of 44g xylene and butanol (the volume ratio of the xylene to the butanol is 4:1), uniformly stirring, then adding 5g of 3-10 layers of high-purity graphene powder, stirring for 1h at the stirring speed of 350r/min, dispersing by using an ultrasonic disperser under the conditions of ultrasonic treatment for 8s, intermittent treatment for 20s and total ultrasonic treatment time of 2h, cooling by using circulating water during dispersion, and keeping the slurry temperature at 25 +/-3 ℃ to obtain graphene slurry for later use.
TABLE 5 distribution ratio of components of graphene modified anti-corrosive pigment primer Q-5
5.2 mixing preparation of graphene modified anti-rust pigment anti-corrosion primer Q-5
According to the proportion in the table 5, after epoxy resin and a diluent are uniformly mixed, adding a flake pigment, an antirust pigment, a filler, graphene slurry and an anti-settling auxiliary agent, starting stirring at a stirring speed of 400r/min for 30min, after uniform mixing, grinding by using a horizontal sand mill until the fineness reaches below 40 mu m, and passing through a 120-mesh filter screen to obtain the graphene modified antirust pigment anticorrosive primer Q-5.
Example 6
Comparative test of Performance
Paint films with the film thickness of 30 +/-5 mu m are respectively prepared and detected by using the graphene modified anti-rust pigment anti-corrosion primers Q-1 to Q-5 prepared in the embodiments 1 to 5 of the invention and a commercially available common epoxy iron red primer, and the comparison table 6 of the obtained detection data is as follows:
TABLE 6 table for comparison of measured data
The combination of the above table 6 shows that under the condition of the same paint film thickness, the impact strength of the universal graphene modified epoxy anticorrosive primer obtained by the preparation method of the invention is superior to that of the commercially available epoxy iron red primer, the salt spray resistance of the universal graphene modified epoxy anticorrosive primer is far superior to that of the commercially available epoxy iron red primer, and the universal graphene modified epoxy anticorrosive primer has good popularization prospects.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.
Claims (5)
1. The preparation method of the graphene modified anti-corrosive pigment primer is characterized by comprising the following components in parts by mass:
18g of epoxy resin was added to the reaction mixture,
6g of graphene slurry is prepared, wherein,
10g of a flake-like pigment,
30g of an anti-rust pigment,
14g of a filler (C) in a weight ratio,
2g of anti-settling auxiliary agent,
a diluent consisting of 16g of xylene and 4g of butanol,
the graphene slurry comprises graphene powder, a dispersing agent, xylene and butanol, the solid content of the graphene slurry is 10%, the epoxy resin is E-20 type epoxy resin, the flake pigment is mica powder, the antirust pigment is iron red, the filler is talcum powder, and the anti-settling auxiliary agent is organic bentonite;
the preparation method of the graphene modified anti-rust pigment anti-corrosion primer comprises the following steps:
adding 1g 7163A type dispersant into a mixed solvent consisting of 44g dimethylbenzene and butanol, and uniformly stirring, wherein the volume ratio of the dimethylbenzene to the butanol in the mixed solvent is 4: 1; then adding 5g of 3-10 layers of graphene powder, stirring for 0.5h at the stirring speed of 300r/min, dispersing by using an ultrasonic disperser under the conditions of ultrasonic treatment for 8s, intermittent treatment for 20s and total ultrasonic treatment for 2h, cooling by using circulating water during dispersion, and keeping the temperature of the slurry at 25 +/-3 ℃ to obtain graphene slurry for later use;
uniformly mixing epoxy resin and a diluent, adding a flake pigment, an anti-rust pigment, a filler, graphene slurry and an anti-settling auxiliary agent, stirring at a stirring speed of 400r/min for 30min, uniformly mixing, grinding by using a horizontal sand mill until the fineness reaches below 40 mu m, and sieving by using a 120-mesh filter screen to obtain the graphene modified anti-rust pigment anticorrosive primer.
2. The preparation method of the graphene modified anti-corrosive pigment primer is characterized by comprising the following components in parts by mass:
30g of epoxy resin is added into the epoxy resin,
10g of graphene slurry is added, and the slurry is stirred,
flake pigment, which consists of 2g of mica powder and 3g of aluminum flake powder,
22g of an anti-rust pigment,
a filler (11 g) of a filler,
2g of anti-settling auxiliary agent,
a diluent which is 20g of xylene,
the graphene slurry comprises graphene powder, a dispersing agent, xylene and butanol, the solid content of the graphene slurry is 10%, the epoxy resin is E-44 type epoxy resin, the antirust pigment is iron red, the filler is lithopone, and the anti-settling auxiliary agent is fumed silica;
the preparation method of the graphene modified anti-rust pigment anti-corrosion primer comprises the following steps:
adding 1.5g of 7163A type dispersant into a mixed solvent consisting of 43.5g of dimethylbenzene and butanol, and uniformly stirring, wherein the volume ratio of the dimethylbenzene to the butanol in the mixed solvent is 4: 1; then adding 5g of 3-10 layers of graphene powder, stirring for 1h at the stirring speed of 250r/min, dispersing by using an ultrasonic disperser under the conditions of ultrasonic wave for 8s, intermittent operation for 20s and total ultrasonic time of 2h, cooling by using circulating water during dispersion, and keeping the temperature of the slurry at 25 +/-3 ℃ to obtain graphene slurry for later use;
uniformly mixing epoxy resin and a diluent, adding a flake pigment, an anti-rust pigment, a filler, graphene slurry and an anti-settling auxiliary agent, stirring at the stirring speed of 400r/min for 30min, uniformly mixing, grinding by using a horizontal sand mill until the fineness reaches below 40 mu m, and sieving by using a 120-mesh filter screen to obtain the graphene modified anti-rust pigment anticorrosive primer.
3. The preparation method of the graphene modified anti-corrosive pigment primer is characterized by comprising the following components in parts by mass:
20g of epoxy resin, namely 20g of epoxy resin,
8g of graphene slurry is added, and the slurry is,
4g of a flake-like pigment,
an anticorrosive pigment consisting of 18g of iron oxide red and 12g of zinc yellow,
12g of a filler (C) in a weight ratio,
4g of anti-settling auxiliary agent,
a diluent which is 22g of propylene glycol methyl ether acetate,
the graphene slurry comprises graphene powder, a dispersing agent, xylene and butanol, the solid content of the graphene slurry is 10%, the epoxy resin is E-02 type epoxy resin, the flake pigment is flake aluminum powder, the filler is precipitated barium sulfate, and the anti-settling auxiliary agent is polyethylene wax;
the preparation method of the graphene modified anti-rust pigment anti-corrosion primer comprises the following steps:
adding 0.5g of 7163A type dispersing agent into a mixed solvent consisting of 44.5g of dimethylbenzene and butanol, and uniformly stirring, wherein the volume ratio of the dimethylbenzene to the butanol in the mixed solvent is 4: 1; then adding 5g of 3-10 layers of graphene powder, stirring for 1h at the stirring speed of 350r/min, dispersing by using an ultrasonic disperser under the conditions of ultrasonic wave for 8s, intermittent operation for 20s and total ultrasonic time of 2h, cooling by using circulating water during dispersion, and keeping the temperature of the slurry at 25 +/-3 ℃ to obtain graphene slurry for later use;
uniformly mixing epoxy resin and a diluent, adding a flake pigment, an anti-rust pigment, a filler, graphene slurry and an anti-settling auxiliary agent, stirring at the stirring speed of 400r/min for 30min, uniformly mixing, grinding by using a horizontal sand mill until the fineness reaches below 40 mu m, and sieving by using a 120-mesh filter screen to obtain the graphene modified anti-rust pigment anticorrosive primer.
4. The preparation method of the graphene modified anti-corrosive pigment primer is characterized by comprising the following components in parts by mass:
an epoxy resin, which consists of 12g E-44 type epoxy resin and 16g E-02 type epoxy resin,
8g of graphene slurry is added, and the slurry is,
a flake pigment consisting of 2g of glass flakes and 4g of aluminum flakes,
an antirust pigment which consists of 16g of iron oxide red and 9g of strontium yellow,
a filler consisting of 6g of talc and 5g of lithopone,
an anti-settling auxiliary agent, which consists of 1g of organic bentonite and 1g of fumed silica,
a diluent consisting of 16g of xylene and 4g of butanol,
the graphene slurry is composed of graphene powder, a dispersing agent, xylene and butanol, and the solid content of the graphene slurry is 10%;
the preparation method of the graphene modified anti-rust pigment anti-corrosion primer comprises the following steps:
adding 1g 7163A type dispersant into a mixed solvent consisting of 44g dimethylbenzene and butanol, and uniformly stirring, wherein the volume ratio of the dimethylbenzene to the butanol in the mixed solvent is 4: 1; then adding 5g of 3-10 layers of graphene powder, stirring for 1h at the stirring speed of 250r/min, dispersing by using an ultrasonic disperser under the conditions of ultrasonic wave for 8s, intermittent operation for 20s and total ultrasonic time of 2h, cooling by using circulating water during dispersion, and keeping the temperature of the slurry at 25 +/-3 ℃ to obtain graphene slurry for later use;
uniformly mixing epoxy resin and a diluent, adding a flake pigment, an anti-rust pigment, a filler, graphene slurry and an anti-settling auxiliary agent, stirring at the stirring speed of 400r/min for 30min, uniformly mixing, grinding by using a horizontal sand mill until the fineness reaches below 40 mu m, and sieving by using a 120-mesh filter screen to obtain the graphene modified anti-rust pigment anticorrosive primer.
5. The preparation method of the graphene modified anti-corrosive pigment primer is characterized by comprising the following components in parts by mass:
epoxy resin, which consists of 9g E-44 type epoxy resin and 18g E-20 type epoxy resin,
5g of graphene slurry is added, and the mixture is,
4g of a flake-like pigment,
an antirust pigment which consists of 15g of iron oxide red and 15g of strontium yellow,
10g of a filler (a filler) in the weight ratio,
4g of anti-settling auxiliary agent,
a diluent consisting of 16g of xylene and 4g of butanol,
the graphene slurry consists of graphene powder, a dispersing agent, xylene and butanol, the solid content of the graphene slurry is 10%, the flake pigment is flake aluminum powder, the filler is precipitated barium sulfate, and the anti-settling auxiliary agent is polyethylene wax;
the preparation method of the graphene modified anti-rust pigment anti-corrosion primer comprises the following steps:
adding 1g 7163A type dispersant into a mixed solvent consisting of 44g dimethylbenzene and butanol, and uniformly stirring, wherein the volume ratio of the dimethylbenzene to the butanol in the mixed solvent is 4: 1; then adding 5g of 3-10 layers of graphene powder, stirring for 1h at the stirring speed of 350r/min, dispersing by using an ultrasonic disperser under the conditions of ultrasonic wave for 8s, intermittent operation for 20s and total ultrasonic time of 2h, cooling by using circulating water during dispersion, and keeping the temperature of the slurry at 25 +/-3 ℃ to obtain graphene slurry for later use;
uniformly mixing epoxy resin and a diluent, adding a flake pigment, an anti-rust pigment, a filler, graphene slurry and an anti-settling auxiliary agent, stirring at the stirring speed of 400r/min for 30min, uniformly mixing, grinding by using a horizontal sand mill until the fineness reaches below 40 mu m, and sieving by using a 120-mesh filter screen to obtain the graphene modified anti-rust pigment anticorrosive primer.
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| CN109370424A (en) * | 2018-11-22 | 2019-02-22 | 深圳陶金材料科技有限公司 | A kind of preventing corrosion of dew points coating material and preparation method thereof |
| CN111205738B (en) * | 2020-03-06 | 2021-08-17 | 涂创时代(苏州)科技开发有限公司 | Low-zinc anticorrosive composition compounded by graphene and flaky conductive material and application thereof |
| GB2618142A (en) * | 2022-04-29 | 2023-11-01 | Applied Graphene Mat Uk Ltd | Chemical resistance |
| CN115340806A (en) * | 2022-09-14 | 2022-11-15 | 中昊北方涂料工业研究设计院有限公司 | Ultrathin anticorrosive coating for airborne heat exchanger fin and preparation method thereof |
| CN117004296B (en) * | 2023-09-01 | 2024-12-24 | 浙江正泰电器股份有限公司 | Graphene slurry and preparation method and application thereof |
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