CN110698902A - Preparation method of graphene water-based epoxy static conductive anticorrosive paint - Google Patents
Preparation method of graphene water-based epoxy static conductive anticorrosive paint Download PDFInfo
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- CN110698902A CN110698902A CN201910902719.7A CN201910902719A CN110698902A CN 110698902 A CN110698902 A CN 110698902A CN 201910902719 A CN201910902719 A CN 201910902719A CN 110698902 A CN110698902 A CN 110698902A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 88
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 44
- 239000004593 Epoxy Substances 0.000 title claims abstract description 43
- 230000003068 static effect Effects 0.000 title claims abstract description 21
- 239000003973 paint Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000002002 slurry Substances 0.000 claims abstract description 24
- 239000000839 emulsion Substances 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 40
- 239000002518 antifoaming agent Substances 0.000 claims description 25
- 239000008367 deionised water Substances 0.000 claims description 25
- 229910021641 deionized water Inorganic materials 0.000 claims description 25
- 238000002156 mixing Methods 0.000 claims description 21
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 20
- 239000002270 dispersing agent Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 10
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound 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 10
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 10
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 10
- 239000010445 mica Substances 0.000 claims description 10
- 229910052618 mica group Inorganic materials 0.000 claims description 10
- 239000002562 thickening agent Substances 0.000 claims description 10
- 239000013008 thixotropic agent Substances 0.000 claims description 10
- 238000009736 wetting Methods 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 150000001412 amines Chemical class 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 5
- 239000007822 coupling agent Substances 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 239000011259 mixed solution Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 239000000080 wetting agent Substances 0.000 claims description 5
- 238000004062 sedimentation Methods 0.000 claims description 2
- 238000000576 coating method Methods 0.000 abstract description 11
- 239000011248 coating agent Substances 0.000 abstract description 7
- 239000003960 organic solvent Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 4
- 239000003085 diluting agent Substances 0.000 abstract description 3
- 231100000331 toxic Toxicity 0.000 abstract description 3
- 230000002588 toxic effect Effects 0.000 abstract description 3
- 239000012752 auxiliary agent Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000006115 industrial coating Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000126 substance Substances 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
- 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
- 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
-
- 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
- C09D7/20—Diluents or solvents
-
- 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
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- 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
- C08K2201/001—Conductive additives
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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
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a preparation method of a graphene water-based epoxy static conductive anticorrosive paint, which takes graphene slurry and water-based epoxy emulsion as main raw materials to prepare the anticorrosive paint easy for electrostatic treatment, and the graphene water-based epoxy static conductive anticorrosive paint takes water and water-soluble auxiliary agents as diluents, does not contain other toxic and harmful organic solvents, is safe and environment-friendly, has a good anticorrosive effect of preventing corrosive media from corroding a base material, and also improves the density, toughness, hardness and impact resistance of a coating.
Description
Technical Field
The invention relates to the technical field of industrial coatings, and particularly relates to a preparation method of a graphene water-based epoxy static conductive anticorrosive coating.
Background
In the process of using the steel oil storage tank used in oil transportation and storage in petroleum and petrochemical industries, potential safety hazards are easily generated due to frequent corrosion of internal and external environment media. Therefore, it is necessary to apply an effective anti-corrosion treatment to the storage tank to reduce the occurrence of safety accidents. In order to ensure safe use of the oil tank, it is necessary to suppress generation of static charge and promote leakage of charge to eliminate accumulation of static charge while considering the corrosion protection in the oil tank, and therefore, a static conductive anticorrosive paint should be used for the inner wall of the oil tank.
At present, most of anticorrosive static conductive coatings for the inner wall of a storage tank are additive oily coatings taking volatile organic solvents as diluents. When the paint is used, the volatility of the organic solvent is strong, and part of the organic solvent is toxic and harmful, so that the health of constructors is seriously endangered and the environment is polluted; in addition, the organic solvent has low flash point, so that the organic solvent is inflammable and explosive when being coated in a closed oil storage tank, thereby causing serious personal injury and huge property loss. Therefore, the development of safe and environment-friendly water-based anticorrosive static conductive coating is urgently needed.
The graphene is a novel two-dimensional nano material and has the characteristics of high strength, high specific surface area, high conductivity, excellent chemical stability resistance and the like. The thickness of the sheet layer is extremely thin, the sheet layer is an ultrathin material with the thickness of only one carbon atom, but the sheet layer is the hardest material so far, the sheet layer is more than 100 times of that of steel, the tensile strength is as high as 130GPa, the Young modulus is 1069GPa, and the elastic modulus is 1 TPa. Graphene based on the properties of graphene is widely applied to the fields of reinforced and wear-resistant coatings and the like, shows great scientific research and practical utilization values and utilizes the characteristics of graphene, and can play the roles of effectively preventing static electricity, resisting wear, resisting water, resisting corrosion and the like when added into the coatings.
Disclosure of Invention
The invention aims to provide a preparation method of a graphene water-based epoxy static conductive anticorrosive paint.
The invention adopts the following technical scheme.
A preparation method of a graphene water-based epoxy static conductive anticorrosive paint is characterized by comprising the following steps:
step S1, preparing a raw material, wherein the raw material consists of A, B two components;
the component A comprises the following components in parts by weight: 15-30% of deionized water, 0.5-0.75% of water-based dispersant, 0.05-0.15% of defoaming agent, 0.5-0.75% of water-based thixotropic agent, 5-10% of zinc powder, 2.5-5% of talcum powder, 2.5-5% of mica powder, 2.5-5% of precipitated barium sulfate, 0.5-1.5% of siloxane coupling agent, 0.1-0.2% of anti-flash rust agent, 1-2.5% of anti-settling agent, 50-60% of graphene slurry and 0.1-0.2% of thickening agent;
the component B comprises the following components in parts by weight: 10-20% of deionized water, 55-65% of water-based epoxy emulsion, 0.1-0.2% of wetting and leveling agent, 0.5-1% of defoaming agent and 20-30% of water-based epoxy curing agent.
Step S2, preparing component A:
s2.1, uniformly mixing deionized water, a water-based dispersing agent, a defoaming agent and a water-based thixotropic agent;
s2.2, dispersing the mixture prepared in the step S2.1 at 1500r/min, and gradually adding talcum powder, mica powder, zinc powder and precipitated barium sulfate in the dispersing process;
step S2.3, grinding the mixture uniformly stirred and dispersed in the step S2.2 to the fineness of less than 60 microns;
s2.4, continuously adding siloxane for coupling, an anti-flash rust agent and an anti-sedimentation agent into the mixture ground in the step S2.3, and dispersing for 1000-;
step S2.5, grinding the slurry prepared in the step S2.4 to the fineness of less than 60 microns, and then adding the graphene slurry and uniformly stirring;
s2.6, continuously adding the thickening agent to adjust the viscosity, uniformly stirring, and filtering to obtain a component A;
step S3, preparing component B:
mixing deionized water and the water-based epoxy emulsion, sequentially adding a wetting and leveling agent, a defoaming agent and a water-based epoxy curing agent, mixing, and dispersing at 1000-1500r/min to obtain a component B.
Step S4, mixing A, B components to prepare a finished product:
adding the component A mixed solution prepared in the step S2.6 into the component B in the step S3, wherein the component A comprises the following components in parts by weight A, B: the component B is 4: 1-3, stirring for 0.5-2h at 1000-.
Further, the graphene slurry comprises the following components in parts by weight: 3-5% of a dispersing agent, 0.3-0.4% of a wetting agent, 0.3-0.4% of a defoaming agent, 0.1-0.2% of a multifunctional amine assistant, 88-92% of deionized water and 4-6% of graphene powder.
Further, the aqueous epoxy emulsion is an emulsion prepared from at least one of epoxy resin Zhongnan Asia 128 resin and Xika resin.
The invention has the beneficial effects that: 1. the graphene water-based epoxy static-conducting anticorrosive paint disclosed by the invention takes water and a water-soluble auxiliary agent as a diluent, does not contain other toxic and harmful organic solvents, and is safe and environment-friendly.
2. Graphene serving as a high-conductivity nano material is uniformly dispersed in a water-based paint system in a proper proportion, so that a high-efficiency conductive network can be formed, the resistivity of a coating is remarkably reduced, and electrostatic treatment is easy.
3. The two-dimensional film structure of the graphene can form a barrier layer in a coating, the huge specific surface area of the barrier layer can be tightly combined with other antirust fillers and matrix resin in a coating system, the corrosion of corrosive media on a base material is effectively prevented, a good anticorrosion effect is achieved, and meanwhile, the density, the toughness, the hardness and the impact resistance of the coating are favorably improved.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1
A preparation method of a graphene water-based epoxy static conductive anticorrosive paint comprises the following steps:
step S1, preparing a raw material, wherein the raw material consists of A, B two components;
the component A comprises the following components in parts by weight: 30% of deionized water, 0.5% of water-based dispersant, 0.05% of defoaming agent, 0.5% of water-based thixotropic agent, 9.75% of zinc powder, 2.5% of talcum powder, 2.5% of mica powder, 2.5% of precipitated barium sulfate, 0.5% of siloxane coupling agent, 0.1% of anti-flash rust agent, 1% of anti-settling agent, 50% of graphene slurry and 0.1% of thickening agent;
the component B comprises the following components in parts by weight: 14.4 percent of deionized water, 55 percent of water-based epoxy emulsion, 0.1 percent of wetting and leveling agent, 0.5 percent of defoaming agent and 30 percent of water-based epoxy curing agent.
Step S2, preparing component A:
s2.1, uniformly mixing deionized water, a water-based dispersing agent, a defoaming agent and a water-based thixotropic agent;
s2.2, dispersing the mixture prepared in the step S2.1 at 1000r/min, and gradually adding talcum powder, mica powder, zinc powder and precipitated barium sulfate in the dispersing process;
step S2.3, grinding the mixture uniformly stirred and dispersed in the step S2.2 to the fineness of less than 60 microns;
s2.4, continuously adding siloxane coupling, anti-flash rust agent and anti-settling agent into the mixture ground in the step S2.3, and dispersing at 1000r/min to prepare slurry;
step S2.5, grinding the slurry prepared in the step S2.4 to the fineness of less than 60 microns, and then adding the graphene slurry and uniformly stirring;
s2.6, continuously adding the thickening agent to adjust the viscosity, uniformly stirring, and filtering to obtain a component A;
step S3, preparing component B:
mixing deionized water and the water-based epoxy emulsion, sequentially adding a wetting and leveling agent, a defoaming agent and a water-based epoxy curing agent, mixing, and dispersing at 1000r/min to obtain a component B.
Step S4, mixing A, B components to prepare a finished product:
adding the component A mixed solution prepared in the step S2.6 into the component B in the step S3, wherein the component A comprises the following components in parts by weight A, B: the component B is 4: 1, and stirring for 0.5h at 1000r/min to obtain the graphene water-based epoxy static conductive anticorrosive paint.
The graphene slurry comprises the following components in parts by weight: 3% of dispersing agent, 0.4% of wetting agent, 0.4% of defoaming agent, 0.2% of multifunctional amine assistant, 92% of deionized water and 4% of graphene powder.
The waterborne epoxy emulsion is epoxy resin southeast Asia 128 resin emulsion.
Example 2
A preparation method of a graphene water-based epoxy static conductive anticorrosive paint comprises the following steps:
step S1, preparing a raw material, wherein the raw material consists of A, B two components;
the component A comprises the following components in parts by weight: 15% of deionized water, 0.75% of water-based dispersant, 0.15% of defoaming agent, 0.75% of water-based thixotropic agent, 5% of zinc powder, 5% of talcum powder, 5% of mica powder, 3.95% of precipitated barium sulfate, 1.5% of siloxane coupling agent, 0.2% of anti-flash rust agent, 2.5% of anti-settling agent, 60% of graphene slurry and 0.2% of thickening agent;
the component B comprises the following components in parts by weight: 13.8 percent of deionized water, 65 percent of water-based epoxy emulsion, 0.2 percent of wetting and leveling agent, 1 percent of defoaming agent and 20 percent of water-based epoxy curing agent.
Step S2, preparing component A:
s2.1, uniformly mixing deionized water, a water-based dispersing agent, a defoaming agent and a water-based thixotropic agent;
s2.2, dispersing the mixture prepared in the step S2.1 at 1500r/min, and gradually adding talcum powder, mica powder, zinc powder and precipitated barium sulfate in the dispersing process;
step S2.3, grinding the mixture uniformly stirred and dispersed in the step S2.2 to the fineness of less than 60 microns;
s2.4, continuously adding siloxane into the mixture ground in the step S2.3 for coupling, anti-flash rust agent and anti-settling agent, and dispersing at 1500r/min to prepare slurry;
step S2.5, grinding the slurry prepared in the step S2.4 to the fineness of less than 60 microns, and then adding the graphene slurry and uniformly stirring;
s2.6, continuously adding the thickening agent to adjust the viscosity, uniformly stirring, and filtering to obtain a component A;
step S3, preparing component B:
mixing deionized water and the water-based epoxy emulsion, sequentially adding a wetting and leveling agent, a defoaming agent and a water-based epoxy curing agent, mixing, and dispersing at 1500r/min to obtain a component B.
Step S4, mixing A, B components to prepare a finished product:
adding the component A mixed solution prepared in the step S2.6 into the component B in the step S3, wherein the component A comprises the following components in parts by weight A, B: the component B is 4: 3, and stirring at 1500r/min for 2 hours to obtain the graphene water-based epoxy static conductive anticorrosive paint.
The graphene slurry comprises the following components in parts by weight: 5% of dispersing agent, 0.4% of wetting agent, 0.4% of defoaming agent, 0.2% of multifunctional amine assistant, 88% of deionized water and 6% of graphene powder.
The water-based epoxy emulsion is an emulsion prepared from epoxy resin and western-style card resin.
Example 3
A preparation method of a graphene water-based epoxy static conductive anticorrosive paint comprises the following steps:
step S1, preparing a raw material, wherein the raw material consists of A, B two components;
the component A comprises the following components in parts by weight: 20% of deionized water, 0.6% of water-based dispersant, 0.1% of defoaming agent, 0.6% of water-based thixotropic agent, 8.4% of zinc powder, 4% of talcum powder, 4% of mica powder, 4% of precipitated barium sulfate, 1% of siloxane coupling agent, 0.15% of anti-flash rust agent, 2% of anti-settling agent, 55% of graphene slurry and 0.15% of thickening agent;
the component B comprises the following components in parts by weight: 14% of deionized water, 60% of water-based epoxy emulsion, 0.15% of wetting and leveling agent, 0.75% of defoaming agent and 25% of water-based epoxy curing agent.
Step S2, preparing component A:
s2.1, uniformly mixing deionized water, a water-based dispersing agent, a defoaming agent and a water-based thixotropic agent;
s2.2, dispersing the mixture prepared in the step S2.1 at 1250r/min, and gradually adding talcum powder, mica powder, zinc powder and precipitated barium sulfate in the dispersing process;
step S2.3, grinding the mixture uniformly stirred and dispersed in the step S2.2 to the fineness of less than 60 microns;
s2.4, continuously adding siloxane into the mixture ground in the step S2.3 for coupling, anti-flash rust agent and anti-settling agent, and dispersing at 1250r/min to prepare slurry;
step S2.5, grinding the slurry prepared in the step S2.4 to the fineness of less than 60 microns, and then adding the graphene slurry and uniformly stirring;
s2.6, continuously adding the thickening agent to adjust the viscosity, uniformly stirring, and filtering to obtain a component A;
step S3, preparing component B:
mixing deionized water and the water-based epoxy emulsion, sequentially adding a wetting and leveling agent, a defoaming agent and a water-based epoxy curing agent, mixing, and dispersing at 1250r/min to obtain a component B.
Step S4, mixing A, B components to prepare a finished product:
adding the component A mixed solution prepared in the step S2.6 into the component B in the step S3, wherein the component A comprises the following components in parts by weight A, B: the component B is 4: 2, stirring at 1250r/min for 1.5h to obtain the graphene water-based epoxy static conductive anticorrosive paint.
The graphene slurry comprises the following components in parts by weight: 4% of dispersing agent, 0.35% of wetting agent, 0.35% of defoaming agent, 0.15% of multifunctional amine assistant, 90.15% of deionized water and 5% of graphene powder.
The water-based epoxy emulsion is prepared by mixing epoxy resin Zhongnan Asia 128 resin and Xika resin.
It is to be noted and understood that various modifications and improvements can be made to the invention described in detail above without departing from the spirit and scope of the invention as claimed. Accordingly, the scope of the claimed subject matter is not limited by any of the specific exemplary teachings provided.
Claims (3)
1. A preparation method of a graphene water-based epoxy static conductive anticorrosive paint is characterized by comprising the following steps:
step S1, preparing a raw material, wherein the raw material consists of A, B two components;
the component A comprises the following components in parts by weight: 15-30% of deionized water, 0.5-0.75% of water-based dispersant, 0.05-0.15% of defoaming agent, 0.5-0.75% of water-based thixotropic agent, 5-10% of zinc powder, 2.5-5% of talcum powder, 2.5-5% of mica powder, 2.5-5% of precipitated barium sulfate, 0.5-1.5% of siloxane coupling agent, 0.1-0.2% of anti-flash rust agent, 1-2.5% of anti-settling agent, 50-60% of graphene slurry and 0.1-0.2% of thickening agent;
the component B comprises the following components in parts by weight: 10-20% of deionized water, 55-65% of water-based epoxy emulsion, 0.1-0.2% of wetting and leveling agent, 0.5-1% of defoaming agent and 20-30% of water-based epoxy curing agent;
step S2, preparing component A:
s2.1, uniformly mixing deionized water, a water-based dispersing agent, a defoaming agent and a water-based thixotropic agent;
s2.2, dispersing the mixture prepared in the step S2.1 at 1500r/min, and gradually adding talcum powder, mica powder, zinc powder and precipitated barium sulfate in the dispersing process;
step S2.3, grinding the mixture uniformly stirred and dispersed in the step S2.2 to the fineness of less than 60 microns;
s2.4, continuously adding siloxane for coupling, an anti-flash rust agent and an anti-sedimentation agent into the mixture ground in the step S2.3, and dispersing for 1000-;
step S2.5, grinding the slurry prepared in the step S2.4 to the fineness of less than 60 microns, and then adding the graphene slurry and uniformly stirring;
s2.6, continuously adding the thickening agent to adjust the viscosity, uniformly stirring, and filtering to obtain a component A;
step S3, preparing component B:
mixing deionized water and the water-based epoxy emulsion, sequentially adding a wetting and leveling agent, a defoaming agent and a water-based epoxy curing agent, mixing, and dispersing at 1000-;
step S4, mixing A, B components to prepare a finished product:
adding the component A mixed solution prepared in the step S2.6 into the component B in the step S3, wherein the component A comprises the following components in parts by weight A, B: the component B is 4: 1-3, stirring for 0.5-2h at 1000-.
2. The preparation method of the graphene aqueous epoxy static conductive anticorrosive paint according to claim 1, characterized in that the graphene slurry comprises the following components in parts by mass: 3-5% of a dispersing agent, 0.3-0.4% of a wetting agent, 0.3-0.4% of a defoaming agent, 0.1-0.2% of a multifunctional amine assistant, 88-92% of deionized water and 4-6% of graphene powder.
3. The preparation method of the graphene aqueous epoxy static-conductive anticorrosive paint according to claim 1, wherein the aqueous epoxy emulsion is an emulsion prepared from at least one of epoxy resin, southeast Asia 128 resin and western Ka resin.
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| CN112680058A (en) * | 2020-12-14 | 2021-04-20 | 无锡中油瑞德防腐科技有限公司 | Polyamide-imide cured epoxy resin water-based paint and preparation method thereof |
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