CN116102954A - Epoxy non-carbon static conductive anticorrosive paint and preparation method and application thereof - Google Patents
Epoxy non-carbon static conductive anticorrosive paint and preparation method and application thereof Download PDFInfo
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- CN116102954A CN116102954A CN202211598468.6A CN202211598468A CN116102954A CN 116102954 A CN116102954 A CN 116102954A CN 202211598468 A CN202211598468 A CN 202211598468A CN 116102954 A CN116102954 A CN 116102954A
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- 239000004593 Epoxy Substances 0.000 title claims abstract description 66
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 44
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 239000003973 paint Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 230000003068 static effect Effects 0.000 title abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 73
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 54
- 238000000576 coating method Methods 0.000 claims abstract description 52
- 239000011248 coating agent Substances 0.000 claims abstract description 50
- 239000000049 pigment Substances 0.000 claims abstract description 34
- 239000003085 diluting agent Substances 0.000 claims abstract description 27
- 239000011231 conductive filler Substances 0.000 claims abstract description 25
- 239000000945 filler Substances 0.000 claims abstract description 20
- 239000004850 liquid epoxy resins (LERs) Substances 0.000 claims abstract description 20
- 239000002270 dispersing agent Substances 0.000 claims abstract description 19
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 15
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 13
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 9
- 230000004048 modification Effects 0.000 claims abstract description 6
- 238000012986 modification Methods 0.000 claims abstract description 6
- 239000010936 titanium Substances 0.000 claims description 64
- 238000003756 stirring Methods 0.000 claims description 48
- 238000002156 mixing Methods 0.000 claims description 34
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 15
- 229920005989 resin Polymers 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 15
- 239000002002 slurry Substances 0.000 claims description 14
- 239000011259 mixed solution Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000000413 hydrolysate Substances 0.000 claims description 12
- 238000001291 vacuum drying Methods 0.000 claims description 12
- 238000000227 grinding Methods 0.000 claims description 11
- 239000003822 epoxy resin Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 6
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 claims description 4
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000001038 titanium pigment Substances 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 12
- 239000007787 solid Substances 0.000 abstract description 10
- 239000002904 solvent Substances 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 8
- 230000000052 comparative effect Effects 0.000 description 18
- 230000007797 corrosion Effects 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 239000004020 conductor Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 239000013530 defoamer Substances 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 125000003700 epoxy group Chemical group 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- -1 phenolic amine Chemical class 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000010215 titanium dioxide Nutrition 0.000 description 2
- NBXZNTLFQLUFES-UHFFFAOYSA-N triethoxy(propyl)silane Chemical compound CCC[Si](OCC)(OCC)OCC NBXZNTLFQLUFES-UHFFFAOYSA-N 0.000 description 2
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 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 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 230000015784 hyperosmotic salinity response Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
Classifications
-
- 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
- C09D163/04—Epoxynovolacs
-
- 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
-
- 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
- C09D7/20—Diluents or solvents
-
- 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
- C09D7/45—Anti-settling agents
-
- 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
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
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)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention belongs to the technical field of coatings, and relates to an epoxy non-carbon static conductive anticorrosive coating, a preparation method and application thereof. The coating comprises a component A and a component B, wherein the component A comprises the following components: liquid epoxy resin, modified two-dimensional material Ti 4 N 3 Non-carbon conductive filler and auxiliary agent; the component B is a curing agent; modified two-dimensional material Ti 4 N 3 The epoxy silane coupling agent is adopted for modification; the auxiliary agent comprises an anti-settling agent and a reactive epoxy diluent. The paint also comprises pigment and filler, wherein the filler does not comprise non-carbon conductive filler; the auxiliary agent also comprises at least one of dispersing agent, defoaming agent and leveling agent. The invention adopts modified material Ti 4 N 3 The anti-static and antistatic coating has the advantages of improving the anti-static property and the static conductivity of the coating, adding the anti-settling agent, the reactive epoxy diluent and the non-carbon conductive filler, so that the product has good static conductivity, anti-corrosion property, storage stability and easy construction, has high solid content, does not contain solvent, and is friendly to the environment and human body.
Description
Technical Field
The invention belongs to the technical field of paint, and particularly relates to an epoxy non-carbon static conductive anticorrosive paint, and a preparation method and application thereof.
Background
The traditional epoxy static conductive anticorrosive paint is mostly solvent paint, and the composition contains a large amount of organic solvents, which can cause harm to the surrounding environment and constructors, and meanwhile, the organic solvents are inflammable and explosive, so that the solvent paint is extremely easy to generate explosion accidents when encountering static electricity or sparks in the construction process. Therefore, the demand for safe and environment-friendly epoxy static-conductive anticorrosive paint is increasingly urgent. The water-based paint is one of environment-friendly paint varieties, takes water as a dispersion medium or a solvent, has the characteristics of safety and environment protection, and the mass solid content of the water-based epoxy static conductive anticorrosive paint is generally about 50-60% and is far lower than that of the solvent-based paint with the solid content of 80%, so that the thickness is lower in one film forming process in the construction process.
Carbon-based conductive materials such as carbon black and graphite have excellent conductive performance, chemical inertness and high cost performance, and are applied to early static-electricity-conducting anticorrosive coatings, but the carbon-based conductive materials can accelerate corrosion of iron, so that the anticorrosive performance of the coating is reduced, and meanwhile, the carbon-based conductive materials are easy to exude when used in an oil tank, so that oil media are polluted.
Accordingly, there is a need to provide a coating material which has excellent static conductivity, corrosion resistance and storage stability, and which has a high solid content, is free of solvents, and is environmentally and human friendly.
Disclosure of Invention
The present invention is directed to solving one or more of the problems of the prior art and providing at least one of a beneficial choice or creation of conditions. The invention provides an epoxy non-carbon static conductive anticorrosive paint, a preparation method and application thereof, and the paint has the advantages of excellent static conductivity, corrosion resistance, storage stability and workability, high solid content, no solvent and environmental friendliness and human body friendliness.
The invention is characterized in that: the invention uses the epoxy silane coupling agent to couple the two-dimensional material Ti 4 N 3 Surface modification is carried out on the two-dimensional material Ti 4 N 3 Epoxy groups are grafted on the surface of the titanium alloy, so that the two-dimensional material Ti is improved 4 N 3 Compatibility with solvent-free epoxy system, and fully utilizes modified two-dimensional material Ti 4 N 3 The coating has large specific surface area and excellent static conductivity, mechanical property and barrier property, and improves the corrosion resistance and static conductivity of the coating. Meanwhile, the anti-settling agent and the active epoxy diluent are added, so that the paint has good storage stability, is favorable for long-term storage and use, has proper viscosity, and is favorable for specific construction operation.
The invention also relates to a modified two-dimensional material Ti 4 N 3 And the non-carbon conductive material is used together to improve the electrostatic conductivity and the corrosion resistance of the coating. In addition, the invention does not use solvent, has high solid content, can easily realize a high film thickness coating, has low VOC content and is friendly to the environment and human body.
Accordingly, the present invention provides a coating.
Specifically, the coating comprises a component A and a component B,
wherein, the A component comprises: liquid epoxy resin, modified two-dimensional material Ti 4 N 3 Non-carbon conductive filler and auxiliary agent;
the component B is a curing agent;
the modified two-dimensional material Ti 4 N 3 The epoxy silane coupling agent is adopted for modification;
the auxiliary agent comprises an anti-settling agent and a reactive epoxy diluent.
Preferably, the mass ratio of the component A to the component B is (5-7) 1.
Preferably, the liquid epoxy resin is at least one selected from bisphenol A type epoxy resin, bisphenol F type epoxy resin, phenolic epoxy resin and hyperbranched modified epoxy resin.
Preferably, the non-carbon conductive filler is at least one selected from conductive mica powder and conductive titanium dioxide.
Specifically, the non-carbon conductive filler not only has excellent static electricity conducting performance, but also is not easy to cause corrosion of iron, so that the corrosion resistance of the coating can be improved.
Preferably, the modified two-dimensional material Ti 4 N 3 Is sheet-shaped; the epoxy silane coupling agent is selected from at least one of gamma- (2, 3-epoxypropoxy) propyl trimethoxysilane, gamma- (2, 3-epoxypropoxy) propyl triethoxysilane, gamma- (2, 3-epoxypropoxy) propyl trimethoxysilane and gamma- (2, 3-epoxypropoxy) propyl triethoxysilane.
Specifically, two-dimensional Ti 4 N 3 The material belongs to an Mxene material, is a graphene-like two-dimensional material, and is mostly carbide at present. However, as N has more electrons than C, the nitride MXene material has higher conductive performance than the carbide MXene material, and is more beneficial to improving the electrostatic conductivity of the coating. The invention adopts two-dimensional Ti 4 N 3 The material is prepared by the method that epoxy silane coupling agent is used for preparing a two-dimensional material Ti 4 N 3 Surface modification is carried out on the two-dimensional material Ti 4 N 3 The surface of the modified two-dimensional material Ti is grafted with epoxy groups, so that the compatibility of the modified two-dimensional material Ti and a solvent-free epoxy system is improved, and the modified two-dimensional material Ti is fully utilized 4 N 3 The coating has large specific surface area, excellent conductivity, mechanical property and barrier property, and improves the corrosion resistance and the conductivity of the coating.
Preferably, the coating further comprises pigments and fillers; the filler does not include a non-carbon based conductive filler; the auxiliary agent also comprises at least one of dispersing agent, defoaming agent and leveling agent.
Further preferably, the pigment is at least one selected from the group consisting of iron oxide black, iron oxide red, iron oxide yellow, titanium white, zinc phosphate, and ion-exchange pigments.
Further preferably, the filler is at least one selected from talcum powder, barium sulfate, mica powder, calcined kaolin and silica micropowder.
Further preferably, the reactive epoxy diluent is at least one selected from the group consisting of monofunctional reactive epoxy diluents and polyfunctional reactive epoxy diluents.
Further preferably, the dispersant is a polymeric dispersant.
Further preferably, the defoaming agent is at least one selected from silicones and polymers.
Further preferably, the leveling agent is at least one selected from the group consisting of silicones and acrylate copolymers.
Further preferably, the anti-settling agent is at least one selected from bentonite, fumed silica, and polyamide wax.
Preferably, the curing agent is at least one selected from phenolic amine epoxy curing agents, polyamide epoxy curing agents and alicyclic amine epoxy curing agents.
Specifically, the reactive diluent can effectively reduce the viscosity of a coating system, improve the workability of the coating, avoid the use of organic solvents, and reduce environmental pollution and the limitation of use space.
Specifically, the dispersing agent has the effect of wetting and dispersing, not only can well wet the substrate, but also can play a role in reducing the viscosity of the coating.
Specifically, the leveling agent can ensure the flatness of the coating at the later stage.
Specifically, the anti-settling agent can prevent pigment settling and hardening, and ensure the storage stability of the paint.
Preferably, the coating comprises liquid epoxy resin, non-carbon conductive filler and modified two-dimensional material Ti 4 N 3 The paint comprises pigment, filler, reactive epoxy diluent, dispersing agent, defoaming agent, leveling agent and anti-settling agent, wherein the component A comprises the following components in percentage by weight: 40-55% of liquid epoxy resin, 20-35% of non-carbon conductive filler and modified two-dimensional material Ti 4 N 3 0.1 to 0.5 percent, 1 to 15 percent of pigment, 5 to 15 percent of filler, 1 to 7 percent of active epoxy diluent, 0.5 to 2 percent of dispersing agent, 0.1 to 1 percent of defoaming agent, 0.1 to 1 percent of flatting agent and 0.5 to 1.5 percent of anti-settling agent.
The invention also provides a preparation method of the coating.
Specifically, the preparation method comprises the following steps:
(1) The liquid epoxy resin and the modified two-dimensional material Ti 4 N 3 Mixing and grinding the anti-settling agent to obtain pigment resin slurry;
(2) Mixing the pigment resin slurry obtained in the step (1) with a reactive epoxy diluent and a non-carbon conductive filler to obtain a component A;
(3) And (3) mixing the component A and the component B obtained in the step (2) to obtain the coating.
Preferably, step (1) is to mix the liquid epoxy resin, dispersant, anti-settling agent, pigment, filler and modified two-dimensional material Ti 4 N 3 Mixing and grinding to obtain pigment resin slurry; and step (2) is to mix the prepared pigment resin slurry with the reactive epoxy diluent and the non-carbon conductive filler, then add the mixture into the defoamer and the flatting agent, and mix the mixture to obtain the component A.
Further preferably, the fineness of the pigment resin syrup is not more than 60 μm.
Preferably, the mixing in step (1), step (2) and step (3) is performed by stirring.
Further preferably, the stirring rotation speed in the step (1) is 200-1200r/min, the stirring time is 10-30min, the grinding rotation speed is 2300-4200r/min, and the grinding time is 30-60min; the stirring rotating speed in the step (2) is 200-1200r/min, and the stirring time is 10-30min; the stirring rotating speed in the step (3) is 200-1200r/min, and the stirring time is 4-11min.
Still more preferably, the stirring in step (1) is performed at a speed of 300-800r/min, the stirring time is 15-25min, the grinding speed is 2500-4000r/min, and the grinding time is 40-60min; the stirring rotating speed in the step (2) is 400-1000r/min, and the stirring time is 15-25min; the stirring rotating speed in the step (3) is 300-800r/min, and the stirring time is 5-10min.
Preferably, the modified two-dimensional material Ti 4 N 3 The preparation method of (2) comprises the following steps:
(1) Mixing ethanol with water, adding acid to adjust pH to acidity, and obtaining a mixed solution;
(2) Adding an epoxy silane coupling agent into the mixed solution obtained in the step (1), mixing and stirring to obtain a hydrolysate of the epoxy silane coupling agent;
(3) To two-dimensional material Ti 4 N 3 Adding the modified two-dimensional material Ti into the hydrolysate obtained in the step (2), heating and stirring, ultrasonic dispersing, cooling to room temperature, centrifuging, washing, and vacuum drying to obtain the modified two-dimensional material Ti 4 N 3 。
Preferably, the acid in step (1) is at least one selected from acetic acid, phosphoric acid and boric acid.
Preferably, the mass ratio of the ethanol to the water in the step (1) is (3.5-10): 1, and the pH value is 3-5.
It is further preferable that the mass ratio of the ethanol to the water in the step (1) is (4-9): 1, and the pH value is 3.5-4.5.
Preferably, in the step (2), the mass ratio of the epoxy silane coupling agent to the mixed solution is 1 (45-110), and the stirring time is 8-120min.
Further preferably, in the step (2), the mass ratio of the epoxy silane coupling agent to the mixed solution is 1 (50-100), and the stirring time is 10-90min.
Preferably, step (3) is to mix the two-dimensional material Ti 4 N 3 Adding the modified two-dimensional material Ti into the hydrolysate obtained in the step (2), heating and stirring, ultrasonic dispersing, cooling to room temperature, centrifuging, washing with ethanol, and vacuum drying to obtain the modified two-dimensional material Ti 4 N 3 。
Further preferably, the method in step (3)Two-dimensional material Ti 4 N 3 The mass ratio of the hydrolysis liquid is 1 (4.5-11), the heating temperature of heating and stirring is 50-70 ℃, the stirring time of heating and stirring is 5-7h, the ultrasonic dispersion time is 20-40min, the centrifugal rotating speed is 3000-10000rpm, the centrifugal time is 5-10min, the times of ethanol washing are 2-4 times, the drying temperature of vacuum drying is 110-130 ℃, and the drying time of vacuum drying is 7-9h.
Still more preferably, the two-dimensional material Ti in step (3) 4 N 3 The mass ratio of the hydrolysis liquid is 1 (5-10), the heating temperature of heating and stirring is 55-65 ℃, the stirring time of heating and stirring is 5.5-6.5h, the ultrasonic dispersion time is 25-35min, the centrifugal rotating speed is 5000-8000rpm, the centrifugal time is 7-9min, the times of ethanol washing are 3-4 times, the drying temperature of vacuum drying is 115-125 ℃, and the drying time of vacuum drying is 7.5-8.5h.
Specifically, the component A and the component B are respectively and independently packaged, and are mixed according to a certain mass ratio before use.
The invention also provides application of the coating in the fields of petrochemical industry, mechanical equipment and electronic workshops.
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
the invention uses the epoxy silane coupling agent to couple the two-dimensional material Ti 4 N 3 Surface modification is carried out on the two-dimensional material Ti 4 N 3 Epoxy groups are grafted on the surface of the titanium alloy, thereby improving the two-dimensional material Ti 4 N 3 Compatibility with solvent-free epoxy system, and fully utilizes modified two-dimensional material Ti 4 N 3 The coating has large specific surface area, excellent conductivity, mechanical property and barrier property, and improved corrosion resistance and conductivity. Meanwhile, the invention modifies the two-dimensional material Ti 4 N 3 And the non-carbon conductive material is used together, so that the electrostatic conductivity and the corrosion resistance of the coating are further improved.
The anti-settling agent and the reactive epoxy diluent are added, so that the paint has good storage stability, is favorable for long-term storage and use, effectively reduces the viscosity of a paint system, has proper viscosity, is favorable for practical construction operation, avoids the use of an organic solvent, has low VOC content of less than 50g/L, and is friendly to the surrounding environment and human body.
The solid content of the coating is high, the mass solid content is more than or equal to 98 percent, the solid content is far higher than that of the environment-friendly water-based coating, and the solid content is also higher than that of a common solvent-based coating, so that one-step high-film-thickness coating can be easily realized, the number of construction channels is reduced, and the construction efficiency is greatly improved.
Detailed Description
In order to make the technical solutions of the present invention more apparent to those skilled in the art, the following examples will be presented. It should be noted that the following examples do not limit the scope of the invention.
The starting materials, reagents or apparatus used in the following examples are all available from conventional commercial sources or may be obtained by methods known in the art unless otherwise specified.
The specific materials, manufacturers and models used for each of the raw material components in examples 1 to 2 and examples 3 to 4 are shown in tables 1 and 2, respectively.
TABLE 1
TABLE 2
Example 1
An epoxy non-carbon static conductive anticorrosive paint comprises a component A and a component B:
weight by weightThe component A comprises the following components in percentage by weight: 40% of liquid epoxy resin, 20% of non-carbon conductive filler and 20% of modified two-dimensional material Ti 4 N 3 0.5 percent of pigment 15 percent, filler 15 percent, active epoxy diluent 6.2 percent, dispersant 2 percent, defoamer 0.1 percent, leveling agent 0.7 percent and anti-settling agent 0.5 percent;
the component B is 100 percent of curing agent according to the weight percentage;
the mass ratio of the component A to the component B is 7:1.
Wherein, the modified two-dimensional material Ti 4 N 3 The preparation method of (2) comprises the following steps:
(1) Mixing ethanol and water according to a mass ratio of 9:1, adding acetic acid to adjust pH to 4, and obtaining a mixed solution;
(2) Adding gamma- (2, 3-glycidoxy) propyl trimethoxy silane (Nanjing dawn photo chemical KH-560) into the mixed solution obtained in the step (1) according to the mass ratio of 1:50, mixing and stirring for 10min to obtain hydrolysate of gamma- (2, 3-glycidoxy) propyl trimethoxy silane;
(3) According to the mass ratio of 1:5, the two-dimensional material Ti 4 N 3 Adding the powder into the hydrolysate obtained in the step (2), heating and stirring at 60 ℃ for 6 hours, performing ultrasonic dispersion for 30 minutes, cooling to room temperature, centrifuging for 9 minutes at a rotation speed of 5000r/min, washing with ethanol for 3 times, and performing vacuum drying (120 ℃/8 hours) to obtain the modified two-dimensional material Ti 4 N 3 。
The preparation method of the epoxy non-carbon static conductive anticorrosive paint comprises the following steps:
(1) According to the weight percentage, liquid epoxy resin, dispersing agent, anti-settling agent, pigment, filler and modified two-dimensional material Ti 4 N 3 Mixing and stirring for 15min at a rotating speed of 800r/min, and grinding for 40min at a rotating speed of 4000r/min to obtain pigment resin slurry with fineness of 45 mu m;
(2) Mixing and stirring the pigment resin slurry obtained in the step (1), the reactive epoxy diluent and the non-carbon conductive filler for 15min at the rotating speed of 1000r/min, and then adding the defoaming agent and the leveling agent for mixing to obtain a component A;
(3) And (3) mixing and stirring the component A and the component B obtained in the step (2) for 6 minutes at the rotating speed of 600r/min according to the mass ratio to obtain the finished coating.
Example 2
An epoxy non-carbon static conductive anticorrosive paint comprises a component A and a component B:
the component A comprises the following components in percentage by weight: 49% of liquid epoxy resin, 29.6% of non-carbon conductive filler and 29.6% of modified two-dimensional material Ti 4 N 3 0.2%, pigment 4%, filler 7%, reactive epoxy diluent 7%, dispersant 0.5%, defoamer 1%, leveling agent 1%, anti-settling agent 0.7%;
the component B is 100 percent of curing agent according to the mass percent;
the mass ratio of the component A to the component B is 6:1.
Wherein, the modified two-dimensional material Ti 4 N 3 The preparation method of (2) comprises the following steps:
(1) Mixing ethanol and water according to a mass ratio of 4:1, adding phosphoric acid to adjust pH to 4.5, and obtaining a mixed solution;
(2) Adding gamma- (2, 3-glycidoxy) propyl triethoxysilane (Michaelp A1871) into the mixed solution obtained in the step (1) according to the mass ratio of 1:80, mixing and stirring for 30min to obtain hydrolysate of gamma- (2, 3-glycidoxy) propyl triethoxysilane;
(3) According to the mass ratio of 1:8, the two-dimensional material Ti 4 N 3 Adding the powder into the hydrolysate obtained in the step (2), heating and stirring at 55 ℃ for 6.5h, performing ultrasonic dispersion for 25min, cooling to room temperature, centrifuging at 6000r/min for 8min, washing with ethanol for 3 times, and vacuum drying (115 ℃/8.5 h) to obtain the modified two-dimensional material Ti 4 N 3 。
The preparation method of the epoxy non-carbon static conductive anticorrosive paint comprises the following steps:
(1) According to weight percentage, liquid epoxy resin, dispersing agent, anti-settling agent, pigment, filler and modified two-dimensional material Ti 4 N 3 Mixing and stirring for 25min at a rotating speed of 300r/min, and grinding for 50min at a rotating speed of 3500r/min to obtain pigment resin slurry with fineness of 50 μm;
(2) Mixing and stirring the pigment resin slurry obtained in the step (1), the reactive epoxy diluent and the non-carbon conductive filler for 25min at the rotating speed of 400r/min, and then adding the defoaming agent and the leveling agent for mixing to obtain a component A;
(3) Mixing and stirring the component A and the component B obtained in the step (2) for 5min at the rotating speed of 800r/min according to the mass ratio to obtain the finished coating
Example 3
An epoxy non-carbon static conductive anticorrosive paint comprises a component A and a component B:
the component A comprises the following components in percentage by weight: 55% of liquid epoxy resin, 35% of non-carbon conductive filler and 35% of modified two-dimensional material Ti 4 N 3 0.1 percent of pigment, 1 percent of filler, 5 percent of active epoxy diluent, 1 percent of dispersant, 0.3 percent of defoamer, 0.1 percent of flatting agent and 1.5 percent of anti-settling agent;
the component B is 100 percent of curing agent according to the weight percentage;
the mass ratio of the component A to the component B is 7:1.
Wherein, the modified two-dimensional material Ti 4 N 3 The preparation method of (2) comprises the following steps:
(1) Mixing ethanol and water according to a mass ratio of 6:1, adding boric acid to adjust pH to 3.5, and obtaining a mixed solution;
(2) Adding epoxy silane oligomer (Mickey map MP 200) into the mixed solution obtained in the step (1) according to the mass ratio of 1:100, mixing and stirring for 90min to obtain hydrolysate of the epoxy silane oligomer;
(3) According to the mass ratio of 1:10, the two-dimensional material Ti 4 N 3 Adding the powder into the hydrolysate obtained in the step (2), heating and stirring for 5.5h at 65 ℃, performing ultrasonic dispersion for 35min, cooling to room temperature, centrifuging for 7min at 8000r/min, washing with ethanol for 4 times, and vacuum drying (125 ℃/7.5 h) to obtain the modified two-dimensional material Ti 4 N 3 。
The preparation method of the epoxy non-carbon static conductive anticorrosive paint comprises the following steps:
(1) The liquid epoxy resin, the dispersing agent, the anti-settling agent, the pigment, the filler and the modified epoxy resin are mixed according to the weight percentageVitamin material Ti 4 N 3 Mixing and stirring for 20min at a rotating speed of 500r/min, and grinding for 60min at a rotating speed of 2500r/min to obtain pigment resin slurry with fineness of 60 mu m;
(2) Mixing and stirring the pigment resin slurry obtained in the step (1), the reactive epoxy diluent and the non-carbon conductive filler for 20min at the rotating speed of 700r/min according to the weight percentage, and then adding the defoaming agent and the leveling agent for mixing to obtain a component A;
(3) And (3) mixing and stirring the component A and the component B obtained in the step (2) for 10min at the rotating speed of 300r/min according to the mass ratio to obtain the finished coating.
Example 4
An epoxy non-carbon static conductive anticorrosive paint comprises a component A and a component B:
the component A comprises the following components in percentage by weight: 46.8% of liquid epoxy resin, 27% of non-carbon conductive filler and modified two-dimensional material Ti 4 N 3 0.3 percent of pigment 10 percent, 9 percent of filler, 3 percent of active epoxy diluent, 1.5 percent of dispersing agent, 0.6 percent of defoaming agent, 0.5 percent of leveling agent and 1.3 percent of anti-settling agent;
the component B is 100 percent of curing agent according to the weight percentage;
the mass ratio of the component A to the component B is 6:1.
Wherein the modified material Ti 4 N 3 The preparation method of (2) is the same as in example 1.
The preparation method of the epoxy non-carbon static conductive anticorrosive paint comprises the following steps:
(1) According to weight percentage, liquid epoxy resin, dispersing agent, anti-settling agent, pigment, filler and modified two-dimensional material Ti 4 N 3 Mixing and stirring for 18min at a rotating speed of 550r/min, and grinding for 40min at a rotating speed of 3500r/min to obtain pigment resin slurry with fineness of 55 μm;
(2) Mixing and stirring the pigment resin slurry obtained in the step (1), the reactive epoxy diluent and the non-carbon conductive filler for 22min at the rotating speed of 600r/min, and then adding the defoaming agent and the leveling agent for mixing to obtain a component A;
(3) And (3) mixing and stirring the component A and the component B obtained in the step (2) for 7min at the rotating speed of 500r/min according to the mass ratio to obtain the finished coating.
Comparative example 1
Comparative example 1 differs from example 1 only in that comparative example 1 was free of anti-settling agent and otherwise identical to example 1.
Comparative example 2
Comparative example 2 differs from example 1 only in that comparative example 2 does not add the modifying material Ti 4 N 3 Otherwise, the same as in example 1 was conducted.
Comparative example 3
Comparative example 3 differs from example 1 only in that comparative example 3 does not add a reactive epoxy diluent, otherwise the same as example 1.
Performance testing
The A and B components prepared in examples 1 to 4 and comparative examples 1 to 3 were mixed and stirred according to the process parameters of each example and comparative example to prepare a coating, and each coating was then coated on a Q235 blasted steel plate and dried at room temperature for 7 days to form a coating layer having a dry film thickness of 300. Mu.m.
The performance test of the coating is mainly carried out according to the technical standard of the anti-corrosion engineering of the GBT 50393-2017 steel petroleum storage tank, and the viscosity, the spraying workability and the thermal storage stability of the coating are tested. The test results are shown in Table 3.
TABLE 3 Table 3
As can be seen from the test results in Table 3, the solvent-free epoxy non-carbon static conductive anticorrosive paint provided by the invention has excellent static conductive performance, anticorrosive performance, storage stability and moderate viscosity, and can meet the use requirements.
Comparative example 1 compared with example 1, comparative example 1 has much lower viscosity than example 1 due to the absence of the anti-settling agent, and has poor storage stability, which is disadvantageous for long-term storage and use.
Comparative example 2 compared with example 1, comparative example 2 was prepared by adding no modified two-dimensional material Ti 4 N 3 The static electricity conducting performance and hot water resisting performance of the comparative example 2 are obviously reduced, the adhesive force is also reduced, and the alkali resistance, the salt tolerance and the salt fog tolerance are abnormal and do not meet the standard index requirements.
Comparative example 3 in comparison with example 1, comparative example 3 has a viscosity far higher than that of example 1 because no reactive epoxy diluent is added, which causes difficulty in construction and cannot meet the actual use requirements.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. A coating is characterized by comprising a component A and a component B,
wherein, the A component comprises: liquid epoxy resin, modified two-dimensional material Ti 4 N 3 Non-carbon conductive filler and auxiliary agent;
the component B is a curing agent;
the modified two-dimensional material Ti 4 N 3 The epoxy silane coupling agent is adopted for modification;
the auxiliary agent comprises an anti-settling agent and a reactive epoxy diluent.
2. The coating of claim 1, wherein the liquid epoxy resin is selected from at least one of bisphenol a type epoxy resin, bisphenol F type epoxy resin, phenolic epoxy resin, hyperbranched modified epoxy resin.
3. The paint according to claim 1, wherein the non-carbon conductive filler is at least one selected from conductive mica powder and conductive titanium pigment.
4. The coating of claim 1, wherein the modified two-dimensional material Ti 4 N 3 Is sheet-shaped; the epoxy silane coupling agent is selected from at least one of gamma- (2, 3-epoxypropoxy) propyl trimethoxysilane, gamma- (2, 3-epoxypropoxy) propyl triethoxysilane, gamma- (2, 3-epoxypropoxy) propyl trimethoxysilane and gamma- (2, 3-epoxypropoxy) propyl triethoxysilane.
5. The coating of claim 1, wherein the coating further comprises a pigment, a filler; the filler does not include a non-carbon based conductive filler; the auxiliary agent also comprises at least one of dispersing agent, defoaming agent and leveling agent.
6. The coating according to claim 5, wherein the coating comprises a liquid epoxy resin, a non-carbon based conductive filler, a modified two-dimensional material Ti 4 N 3 The paint comprises a component A, a pigment, a filler, a reactive epoxy diluent, a dispersing agent, a defoaming agent, a leveling agent and an anti-settling agent, wherein the component A comprises the following components in percentage by weight: 40-55% of liquid epoxy resin, 20-35% of non-carbon conductive filler and modified two-dimensional material Ti 4 N 3 0.1 to 0.5 percent, 1 to 15 percent of pigment, 5 to 15 percent of filler, 1 to 7 percent of active epoxy diluent, 0.5 to 2 percent of dispersing agent, 0.1 to 1 percent of defoaming agent, 0.1 to 1 percent of flatting agent and 0.5 to 1.5 percent of anti-settling agent.
7. A method of preparing a coating as claimed in any one of claims 1 to 6, comprising the steps of:
(1) The liquid epoxy resin and the modified two-dimensional material Ti 4 N 3 Mixing and grinding the anti-settling agent to obtain pigment resin slurry;
(2) Mixing the pigment resin slurry obtained in the step (1) with a reactive epoxy diluent and a non-carbon conductive filler to obtain a component A;
(3) And (3) mixing the component A and the component B obtained in the step (2) to obtain the coating.
8. The method according to claim 7, wherein in the step (1), the modificationTwo-dimensional material Ti 4 N 3 The preparation method of (2) comprises the following steps:
(1) Mixing ethanol with water, adding acid to adjust pH to acidity, and obtaining a mixed solution;
(2) Adding the epoxy silane coupling agent into the mixed solution obtained in the step (1), mixing and stirring to obtain hydrolysate of the epoxy silane coupling agent;
(3) To two-dimensional material Ti 4 N 3 Adding the modified two-dimensional material Ti into the hydrolysate obtained in the step (2), heating and stirring, ultrasonic dispersing, centrifuging, washing and vacuum drying to obtain the modified two-dimensional material Ti 4 N 3 。
9. A process for preparing a coating according to claim 8, wherein,
the mass ratio of the ethanol to the water in the step (1) is (3.5-10) 1, and the pH value is 3-5;
in the step (2), the mass ratio of the epoxy silane coupling agent to the mixed solution is 1 (45-110), and the stirring time is 8-120min;
the two-dimensional material Ti in the step (3) 4 N 3 The mass ratio of the hydrolysate is 1 (4.5-11), the heating temperature of heating and stirring is 50-70 ℃, the stirring time of heating and stirring is 5-7h, the ultrasonic dispersion time is 20-40min, the centrifugal rotating speed is 3000-10000rpm, the centrifugal time is 5-10min, the washing times are 2-4 times, the drying temperature of vacuum drying is 110-130 ℃, and the drying time of vacuum drying is 7-9h.
10. Use of the coating according to any one of claims 1-6 in the field of petrochemical, mechanical equipment, electronic workshops.
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