CN114891409A - Single-coating water-based ceramic heat-insulating anticorrosive paint for metal material and preparation method thereof - Google Patents
Single-coating water-based ceramic heat-insulating anticorrosive paint for metal material and preparation method thereof Download PDFInfo
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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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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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
- C09D143/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention discloses a single-coating water-based ceramic heat-insulating anticorrosive coating for metal materials and a preparation method thereof, wherein the coating comprises the following components in parts by weight: 35-45 parts of water-based acrylic resin emulsion; 15-20 parts of pigment; 20-22 parts of a filler; 3-5 parts of nano porous ceramic particles; 1-3 parts of nano heat-insulating powder; 12-13 parts of deionized water; 1-2 parts of a water-based dispersant; 0.1-0.2 part of nano dispersant; 0.3-0.5 part of water-based defoaming agent; 0.4-0.6 part of a neutralizer; 0.3-0.5 part of water-based thixotropic auxiliary; 0.5-0.6 part of flash rust inhibitor. The ceramic heat-insulating anticorrosive paint has excellent anticorrosive and heat-insulating properties and can be used for single-pass coating on metal facilities/equipment.
Description
Technical Field
The invention relates to the field of ceramic heat-insulating coatings, in particular to a single-coating water-based ceramic heat-insulating anticorrosive coating for metal materials and a preparation method thereof.
Background
According to statistics, the worldwide loss caused by corrosion is up to 7000 hundred million dollars, which accounts for 2% -4% of the total value of GDP, and the economic loss caused by metal corrosion accounts for about 6% of the total value of national production in China every year. Most pipeline equipment, petrochemical equipment, storage roofs and the like in the industry are mainly made of metal materials, a coating protection means is generally adopted to solve the corrosion problem, and the effect is obvious. When metal facilities/equipment are used for storage, transportation and the like, a large amount of energy is wasted due to convection, radiation, heat conduction and the like, certain potential safety hazards are brought no matter in the environment of high temperature or low temperature, and therefore heat insulation and preservation treatment is needed to be carried out, energy loss is reduced, and normal operation of the facilities/equipment and personal safety of constructors are guaranteed.
The change from traditional solvent type to environmental protection type of anticorrosive coatings is a requirement for sustainable development in new countries, and the development of water-based anticorrosive coatings is one of the current hotspots. With the change of the simplification of the construction process, the change of the anti-corrosion coating system from the traditional bottom, middle and surface composite coating to the direction of a bottom and surface integrated single coating is the demand of market development.
The heat insulation technology of the existing ceramic heat insulation coating is mature in the field of buildings, is immature in the research and application aspects of the field of industrial metal facilities and equipment, has defects in the aspects of water-based property, corrosion resistance, weather resistance, durability, mechanical property and the like, and is particularly deficient in the research of the ceramic heat insulation coating which has excellent corrosion resistance and can be coated by a single coating.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a single-coating water-based ceramic heat-insulating anticorrosive paint for metal materials and a preparation method thereof.
In order to achieve the purpose, the invention adopts the specific scheme that:
the single-coating water-based ceramic heat-insulation anticorrosive coating for the metal material comprises the following components in parts by mass:
35-45 parts of water-based acrylic resin emulsion;
15-20 parts of pigment;
20-22 parts of a filler;
3-5 parts of nano porous ceramic particles;
1-3 parts of nano heat-insulating powder;
12-13 parts of deionized water;
1-2 parts of a water-based dispersant;
0.1-0.2 part of nano dispersant;
0.3-0.5 part of water-based defoaming agent;
0.4-0.6 part of a neutralizing agent;
0.3-0.5 part of water-based thixotropic auxiliary;
0.5-0.6 part of flash rust inhibitor.
Further, the aqueous acrylic resin emulsion is at least one of aqueous organic silicon modified acrylic emulsion and aqueous organic fluorine modified acrylic emulsion.
Further, the average particle diameter of the nano-porous ceramic particles is 20 +/-5 nm, the nano-porous ceramic particles are in a mesoporous structure, the mesoporous aperture is 5nm, and the nano-porous ceramic particles are nano-porous SiO 2 Nanoporous Al 2 O 3 Nano porous TiO 2 Either one or both.
Furthermore, the nanometer heat-insulating powder is a fibrous structure with the diameter of 15 +/-5 nm, and the nanometer heat-insulating powder is nanometer CuO or nanometer Co 2 O 3 At least one of (1).
Further, the pigment is at least one of iron oxide red, phthalocyanine blue, titanium dioxide, iron oxide yellow and carbon black;
or;
the filler is any one or more of precipitated barium sulfate, talcum powder and calcined kaolin.
Further, the aqueous dispersant is a high molecular weight block copolymer solution BYK190 containing pigment affinity groups;
or;
the nano dispersant is ionic nano dispersant TDL-ND 2.
Further, the water-based defoaming agent is any one of a mineral oil-based molecular defoaming compound A10 and BYK-023 containing hydrophobic solids, an emulsifying agent and foam-breaking polysiloxane;
or;
the water-based thixotropic auxiliary agent is any one of non-ionic polyurethane polymer WT-105A and modified polyurea compound solution ECO-6520.
Further, the neutralizing agent is a multifunctional auxiliary agent AMP-95 with low molecular weight and high alkalinity.
The flash rust resisting agent is any one of CK-39 solvent or HL-32 mixture.
A method for preparing a single-coating water-based ceramic heat-insulating anticorrosive paint for a metal material comprises the following steps:
(1) adding a neutralizer and 50% of the aqueous acrylic resin emulsion into a dispersion kettle, and uniformly stirring at a stirring speed of 600 r/min;
(2) sequentially adding 10-12 parts of deionized water, a water-based dispersant, a pigment and a filler into a dispersion kettle at a stirring speed of 400r/min, carrying out dispersion treatment for 10min at a stirring speed of 800r/min to obtain a pre-dispersion material, and grinding the pre-dispersion material in a sand mill until the fineness is below 40 mu m to obtain a ground material;
(3) adding the ground material into a dispersion kettle again, then sequentially adding a defoaming agent, the remaining 50% of the aqueous acrylic resin emulsion, a nano dispersing agent, nano porous ceramic particles, nano heat-insulating powder, an anti-flash rust agent and an aqueous thixotropic auxiliary agent, and stirring the materials at a stirring speed of 1000r/min until the fineness of the materials reaches below 40um to obtain the ceramic heat-insulating anticorrosive coating;
(4) filtering and packaging the ceramic heat-insulating anticorrosive paint to obtain the single-coating water-based ceramic heat-insulating anticorrosive paint;
in the step (3), after the materials are stirred until the fineness reaches below 40um, 1-3 parts of deionized water is added into the dispersion kettle to adjust the viscosity of the materials.
Has the advantages that:
1) the nano particles added into the coating have quantum size effect: (1) the nano porous ceramic particles have a mesoporous structure, the pore size is about 10nm and is far smaller than the mean free path of air molecules, so that the gas molecules in the pores are close to a no-flow state, the heat conduction and heat convection of gas are limited, and the coating is low in heat conduction coefficient and high in heat insulation efficiency; (2) the added fibrous nanometer heat insulation powder has high heat emissivity, can effectively reflect more than 90% of sunlight, can reduce heat transferred by heat radiation, and achieves good heat insulation and cooling effects. The addition of the nano particles further improves the corrosion resistance of the coating, and can obviously improve the weather resistance, water resistance, corrosion resistance, mechanical property, durability and the like of the coating.
2) The emulsion adopted by the invention is the water-based acrylic resin emulsion modified by silicon and fluorine substances with special structures, has Si-C bonds and C-F bonds with high bond energy and a soft molecular chain structure, and has good high and low temperature resistance, wide temperature resistance range, good weather resistance, low surface tension, good hydrophobic property, excellent mechanical property and chemical resistance.
3) The paint disclosed by the invention also has good construction performance, higher solid content, good leveling property, sag resistance and other performances, the paint film is high in drying speed, and the paint film can be coated by 100 mu m in one way, so that the good paint film appearance and excellent anti-corrosion performance of the coating can be realized, the coating efficiency is effectively improved, the labor intensity of constructors is reduced, and the labor cost is saved.
4) The single-coating water-based ceramic heat-insulating anticorrosive coating provided by the invention is low in VOC content, green and environment-friendly, and can be widely applied to the industrial fields of petrifaction, equipment, bridge steel structures and the like.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.
The technical scheme adopted by the invention for solving the technical problems is as follows: the single-coating water-based ceramic heat-insulating anticorrosive coating for the metal material is a single-component coating and comprises the following components in parts by weight: 35-45 parts of water-based acrylic resin emulsion, 15-20 parts of pigment, 20-22 parts of filler, 3-5 parts of nano porous ceramic particles, 1-3 parts of nano heat-insulating powder, 12-13 parts of deionized water, 1-2 parts of water-based dispersant, 0.1-0.2 part of nano dispersant, 0.3-0.5 part of water-based defoamer, 0.4-0.6 part of neutralizer, 0.3-0.5 part of water-based thixotropic aid and 0.5-0.6 part of flash rust inhibitor.
Preferably, the aqueous acrylic resin emulsion is at least one of aqueous organic silicon modified acrylic emulsion and aqueous organic fluorine modified acrylic emulsion.
Preferably, the pigment is at least one of iron oxide red, phthalocyanine blue, titanium dioxide, iron oxide yellow and carbon black. Preferably, the filler is any one or more of precipitated barium sulfate, talcum powder and calcined kaolin.
Preferably, the average particle diameter of the nano-porous ceramic particles is 20 +/-5 nm, the nano-porous ceramic particles are in a mesoporous structure, the mesoporous size is 5nm, and the nano-porous ceramic particles are nano-porous SiO 2 Nanoporous Al 2 O 3 Nano porous TiO 2 Either one or both.
Preferably, the nanometer heat-insulating powder is a fibrous structure with the diameter of 15 +/-5 nm, and the nanometer heat-insulating powder is nanometer CuO or nanometer Co 2 O 3 At least one of (1).
Preferably, the aqueous dispersant is a high molecular weight block copolymer solution BYK190 containing pigment affinity groups, and the nano dispersant is an ionic nano dispersant TDL-ND 2.
Preferably, the water-based defoaming agent is any one of a basf mineral oil-based molecular defoaming compound A10 and BYK-023 containing hydrophobic solids, an emulsifier and defoaming polysiloxane.
Preferably, the neutralizing agent is Dow multifunctional auxiliary AMP-95 with low molecular weight and high alkalinity.
Preferably, the aqueous thixotropic auxiliary agent is any one of Hamming non-ionic polyurethane polymer WT-105A and an Ekesion modified polyurea compound solution ECO-6520.
Preferably, the anti-flash rust agent is any one of CK-39 solvent composed of organic metal chelate and multiple organic compounds in Enze chemical industry and HL-32 mixture of hundred million liters of chemical phosphate and organic compounds.
A preparation method of a single-coating water-based ceramic heat-insulating anticorrosive paint for metal materials comprises the following steps:
(1) adding a neutralizer and 50% of the aqueous acrylic resin emulsion into a dispersion kettle, and uniformly stirring at a stirring speed of 600 r/min;
(2) sequentially adding 10-12 parts of deionized water, a water-based dispersant, a pigment and a filler into a dispersion kettle at a stirring speed of 400r/min, carrying out dispersion treatment for 10min at a stirring speed of 800r/min to obtain a pre-dispersion material, and grinding the pre-dispersion material in a sand mill until the fineness is below 40 mu m to obtain a ground material;
(3) adding the ground material into a dispersion kettle again, then sequentially adding a defoaming agent, the remaining 50% of the aqueous acrylic resin emulsion, a nano dispersing agent, nano porous ceramic particles, nano heat-insulating powder, an anti-flash rust agent and an aqueous thixotropic auxiliary agent, stirring the materials uniformly at a stirring speed of 1000r/min, and dispersing the materials until the fineness reaches below 40um to obtain the ceramic heat-insulating anticorrosive coating;
(4) filtering and packaging the ceramic heat-insulating anticorrosive paint to obtain the single-coating water-based ceramic heat-insulating anticorrosive paint;
in the step (3), after the materials are stirred until the fineness reaches below 40um, 1-3 parts of deionized water is added into the dispersion kettle to adjust the viscosity of the materials.
Example 1
The single-coating water-based ceramic heat-insulation anticorrosive coating for the metal material comprises the following components in parts by mass: 35 parts of water-based acrylic resin emulsion, 18 parts of iron oxide red, 20.8 parts of precipitated barium sulfate and nano porous ceramic particle SiO 2 2 parts of nano porous ceramic particle Al 2 O 3 2 parts of nano heat-insulating powder Co 2 O 3 2 parts, 12 parts of deionized water, 1901 parts of BYK, 20.1 parts of TDL-ND, 100.3 parts of A, AMP-950.4 parts, 0.3 part of WT-105A and CK-390.5 parts.
The preparation method of the single-coating water-based ceramic heat-insulating anticorrosive paint for the metal material mainly comprises the following steps:
(1) weighing 17.5 parts of aqueous acrylic resin emulsion and 0.4 part of AMP-95, adding into a dispersion kettle, and uniformly stirring at a stirring speed of 600 r/min;
(2) sequentially adding 10 parts of deionized water, 1 part of BYK190, 18 parts of iron oxide red and 20.8 parts of precipitated barium sulfate into a dispersion kettle at a stirring speed of 400r/min, performing dispersion treatment for 10min at a stirring speed of 800r/min to obtain a pre-dispersion material, and grinding the pre-dispersion material in a sand mill to obtain a ground material with the fineness of below 40 mu m;
(3) adding the ground material into a dispersion kettle again, and then sequentially adding 0.3 part of A10, 17.5 parts of aqueous acrylic resin emulsion, 0.1 part of TDL-ND2 and 2 parts of nano porous ceramic particle SiO 2 2 parts of nano porous ceramic particle Al 2 O 3 2 portions of nano heat-insulating powder Co 2 O 3 0.5 part of CK-39 and 0.3 part of WT-105A, dispersing the materials to the fineness of below 40um under the stirring of 1000r/min, adding 2 parts of deionized water into a dispersion kettle to adjust the viscosity, and preparing the ceramic heat-insulating anticorrosive coating;
(4) and filtering and packaging the ceramic heat-insulating anticorrosive coating to obtain the single-coating water-based ceramic heat-insulating anticorrosive coating.
Example 2
The single-coating water-based ceramic heat-insulation anticorrosive coating for the metal material comprises the following components in parts by mass: 40 parts of water-based acrylic resin emulsion, 20 parts of titanium dioxide, 7 parts of talcum powder, 11 parts of precipitated barium sulfate, 4 parts of calcined kaolin and nano porous ceramic particle SiO 2 2 parts of nano porous ceramic particle TiO 2 2 parts of nano heat-insulating powder Co 2 O 3 1.5 parts of nano heat insulating powder CuO 1 part, 12 parts of deionized water, 1901 parts of BYK, 20.15 parts of TDL-ND, BYK-0230.4 parts, AMP-950.5 parts, ECO-65200.4 parts and HL-320.5 parts.
A preparation method of a single-coating water-based ceramic heat-insulating anticorrosive paint for metal materials comprises the following steps:
(1) weighing 20 parts of aqueous acrylic resin emulsion and 0.5 part of AMP-95, adding into a dispersion kettle, and uniformly stirring at a stirring speed of 600 r/min;
(2) sequentially adding 10 parts of deionized water, 1 part of BYK190, 20 parts of titanium dioxide, 7 parts of talcum powder, 11 parts of precipitated barium sulfate and 4 parts of calcined kaolin into a dispersion kettle at a stirring speed of 400r/min, carrying out dispersion treatment for 10min at a stirring speed of 800r/min to obtain a pre-dispersion material, and transferring the pre-dispersion material into a sand mill for grinding to obtain a ground material with the fineness of below 40 mu m;
(3) adding the ground material into the dispersion kettle again, and then sequentially adding 0.4 part of BYK-023, 20 parts of aqueous acrylic resin emulsion, 0.15 part of TDL-ND2 and 2 parts of nano porous ceramic particle Al 2 O 3 2 parts of nano porous ceramic particle TiO 2 1.5 parts of nanometer heat-insulating powder Co 2 O 3 1 part of nano heat-insulating powder CuO, 0.5 part of HL-32 and 0.4 part of ECO-6520, dispersing the materials to the fineness of below 40um under the stirring of 1000r/min, adding 2 parts of deionized water into a dispersion kettle to adjust the viscosity, and preparing the ceramic heat-insulating anticorrosive coating;
(4) and filtering and packaging the ceramic heat-insulating anticorrosive coating to obtain the single-coating water-based ceramic heat-insulating anticorrosive coating.
Example 3
The single-coating water-based ceramic heat-insulation anticorrosive coating for the metal material comprises the following components in parts by mass: 45 parts of aqueous acrylic resin emulsion, 15 parts of phthalocyanine blue, 7 parts of precipitated barium sulfate, 15 parts of calcined kaolin and nano porous ceramic particle TiO 2 2.5 parts of nano porous ceramic particle Al 2 O 3 2.5 parts of nano heat-insulating powder Co 2 O 3 1.5 parts of nano heat insulation powder CuO, 1.5 parts of deionized water, 13 parts of BYK1902 parts, 20.2 parts of TDL-ND, 100.5 parts of A, AMP-950.6 parts, ECO-65200.4 parts and CK-390.5 parts.
A preparation method of a single-coating water-based ceramic heat-insulating anticorrosive paint for metal materials comprises the following steps:
(1) weighing 22.5 parts of aqueous acrylic resin emulsion and 0.6 part of AMP-95, adding into a dispersion kettle, and uniformly stirring at a stirring speed of 600 r/min;
(2) sequentially adding 11 parts of deionized water, 2 parts of BYK190, 15 parts of phthalocyanine blue, 7 parts of barium sulfate and 15 parts of calcined kaolin into a dispersion kettle at a stirring speed of 400r/min, performing dispersion treatment for 10min at a stirring speed of 800r/min to obtain a pre-dispersion material, and transferring the pre-dispersion material into a sand mill for grinding to obtain a ground material with the fineness of less than 40 mu m;
(3) adding the ground material into the dispersion kettle again, and then sequentially adding 0.5 part of A10, 22.5 parts of aqueous acrylic resin emulsion, 0.2 part of TDL-ND2 and 2.5 parts of nano porous ceramic particle TiO 2 2.5 parts of nano porous ceramic particle Al 2 O 3 1.5 parts of nanometer heat-insulating powder Co 2 O 3 1.5 parts of nano heat-insulating powder CuO, 0.5 part of CK-39 and 0.4 part of ECO-6520, dispersing the materials to the fineness of below 40um under the stirring of 1000r/min, adding 2 parts of deionized water into a dispersion kettle to adjust the viscosity, and preparing the ceramic heat-insulating anticorrosive coating;
(4) and filtering and packaging the ceramic heat-insulating anticorrosive coating to obtain the single-coating water-based ceramic heat-insulating anticorrosive coating.
The ceramic thermal insulation anticorrosive coatings prepared in examples 1 to 3 were respectively coated on the sample plates and cured for 7 days, and then the performance data of the anticorrosive coatings on the surfaces of the three sample plates were respectively detected, and the detection results are shown in table 1 below.
Table 1 results of performance testing after paints prepared in examples 1-3 were applied to panels
As can be seen from the performance index test results in Table 1, the anticorrosive coatings of examples 1-3 have high solar reflectance and extremely low thermal conductivity, excellent heat insulation performance, good alkali resistance, acid resistance, water resistance, temperature change resistance and other performances, excellent anticorrosive performance, simple and convenient construction process, and can meet the construction requirements after being coated with 100um in one pass.
The foregoing is merely a preferred embodiment of the invention and is not to be construed as limiting the invention in any way. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (10)
1. The single-coating water-based ceramic heat-insulation anticorrosive coating for the metal material is characterized by comprising the following components in parts by mass:
35-45 parts of water-based acrylic resin emulsion;
15-20 parts of pigment;
20-22 parts of a filler;
3-5 parts of nano porous ceramic particles;
1-3 parts of nano heat-insulating powder;
12-13 parts of deionized water;
1-2 parts of a water-based dispersant;
0.1-0.2 part of nano dispersant;
0.3-0.5 part of water-based defoaming agent;
0.4-0.6 part of a neutralizing agent;
0.3-0.5 part of water-based thixotropic auxiliary;
0.5-0.6 part of flash rust inhibitor.
2. The single-coating aqueous ceramic heat-insulating anticorrosive paint for the metal material according to claim 1, wherein the aqueous acrylic resin emulsion is at least one of an aqueous organosilicon modified acrylic emulsion and an aqueous organofluorine modified acrylic emulsion.
3. The single-coating aqueous ceramic thermal insulation anticorrosive paint for metal materials according to claim 1, wherein the average particle size of the nano-porous ceramic particles is 20 ± 5nm, the nano-porous ceramic particles have a mesoporous structure, the mesoporous diameter of the nano-porous ceramic particles is 5nm, and the nano-porous ceramic particles are nano-porous SiO 2 Nanoporous Al 2 O 3 Nano porous TiO 2 Either one or both.
4. The single-coating aqueous ceramic heat-insulating anticorrosive paint for metal materials according to claim 1, wherein the nano heat-insulating powder is a fibrous structure with a diameter of 15 ± 5nm, and the nano heat-insulating powder isNano CuO and nano Co 2 O 3 At least one of (1).
5. The single-coating aqueous ceramic heat-insulating anticorrosive paint for the metal material according to claim 1, wherein the pigment is at least one of red iron oxide, phthalocyanine blue, titanium dioxide, yellow iron oxide and carbon black;
or;
the filler is any one or more of precipitated barium sulfate, talcum powder and calcined kaolin.
6. The single-coating aqueous ceramic heat-insulating anticorrosive paint for the metal material as claimed in claim 1, wherein the aqueous dispersant is a high molecular weight block copolymer solution BYK190 containing pigment affinity groups;
or;
the nano dispersant is ionic nano dispersant TDL-ND 2.
7. The single-coating aqueous ceramic heat-insulating anticorrosive coating for the metal material as claimed in claim 1, wherein the aqueous defoamer is any one of a mineral oil-based molecular defoaming compound A10 and BYK-023 containing hydrophobic solids, an emulsifier and defoaming polysiloxane;
or;
the water-based thixotropic auxiliary agent is any one of non-ionic polyurethane polymer WT-105A and modified polyurea compound solution ECO-6520.
8. The single-coating aqueous ceramic thermal insulation anticorrosive paint for metal materials according to claim 1, wherein the neutralizing agent is multifunctional assistant AMP-95 having low molecular weight and high basicity.
9. The single-coating aqueous ceramic heat-insulating anticorrosive paint for metal materials according to claim 1, wherein the flash rust inhibitor is any one of CK-39 solvent or HL-32 mixture.
10. A method for preparing the single-coating aqueous ceramic heat-insulating anticorrosive paint for the metal material as described in any one of claims 1 to 9, which is characterized by comprising the following steps:
(1) adding a neutralizer and 50% of the aqueous acrylic resin emulsion into a dispersion kettle, and uniformly stirring at a stirring speed of 600 r/min;
(2) sequentially adding 10-12 parts of deionized water, a water-based dispersant, a pigment and a filler into a dispersion kettle at a stirring speed of 400r/min, carrying out dispersion treatment for 10min at a stirring speed of 800r/min to obtain a pre-dispersion material, and grinding the pre-dispersion material in a sand mill until the fineness is below 40 mu m to obtain a ground material;
(3) adding the ground material into a dispersion kettle again, then sequentially adding a defoaming agent, the remaining 50% of the aqueous acrylic resin emulsion, a nano dispersing agent, nano porous ceramic particles, nano heat-insulating powder, an anti-flash rust agent and an aqueous thixotropic auxiliary agent, and stirring the materials at a stirring speed of 1000r/min until the fineness of the materials reaches below 40um to obtain the ceramic heat-insulating anticorrosive coating;
(4) filtering and packaging the ceramic heat-insulating anticorrosive paint to obtain the single-coating water-based ceramic heat-insulating anticorrosive paint;
in the step (3), after the materials are stirred until the fineness reaches below 40um, 1-3 parts of deionized water is added into the dispersion kettle to adjust the viscosity of the materials.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210583400.4A CN114891409B (en) | 2022-05-25 | 2022-05-25 | Single-coating water-based ceramic heat-insulating anticorrosive paint for metal material and preparation method thereof |
Applications Claiming Priority (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115181469A (en) * | 2022-09-14 | 2022-10-14 | 北京汉诺威自控技术有限公司 | Protective coating for rubber oil seal and preparation method thereof |
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| CN109722121A (en) * | 2018-12-26 | 2019-05-07 | 进成新材料(东莞)有限公司 | A kind of fire-proof and thermal-insulation coating material of fullerene modification and preparation method thereof |
| CN114517036A (en) * | 2022-01-26 | 2022-05-20 | 宁夏恩威泰新材料科技有限公司 | Functional heat-insulating fireproof waterproof anticorrosive paint |
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| CN106519855A (en) * | 2016-10-18 | 2017-03-22 | 艾德泰科科技（珠海）有限公司 | Graphene modified heat insulation, anticorrosion and environmental protection coating and preparation method thereof |
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| CN115181469A (en) * | 2022-09-14 | 2022-10-14 | 北京汉诺威自控技术有限公司 | Protective coating for rubber oil seal and preparation method thereof |
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