CN117586696B - Ceramic organic-inorganic composite high-temperature anticorrosive paint - Google Patents
Ceramic organic-inorganic composite high-temperature anticorrosive paint Download PDFInfo
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- CN117586696B CN117586696B CN202410072176.1A CN202410072176A CN117586696B CN 117586696 B CN117586696 B CN 117586696B CN 202410072176 A CN202410072176 A CN 202410072176A CN 117586696 B CN117586696 B CN 117586696B
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- 239000000919 ceramic Substances 0.000 title claims abstract description 40
- 239000003973 paint Substances 0.000 title claims abstract description 32
- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 239000011248 coating agent Substances 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 9
- 229920002545 silicone oil Polymers 0.000 claims abstract description 8
- 238000009413 insulation Methods 0.000 claims abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 6
- 239000001301 oxygen Substances 0.000 claims abstract description 6
- 239000003112 inhibitor Substances 0.000 claims abstract description 5
- 239000000945 filler Substances 0.000 claims abstract description 4
- 238000011049 filling Methods 0.000 claims abstract description 4
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 23
- 239000000741 silica gel Substances 0.000 claims description 23
- 229910002027 silica gel Inorganic materials 0.000 claims description 23
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 22
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 19
- 239000011521 glass Substances 0.000 claims description 19
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 17
- 239000011324 bead Substances 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 12
- 239000005995 Aluminium silicate Substances 0.000 claims description 9
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 9
- 235000012211 aluminium silicate Nutrition 0.000 claims description 9
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052882 wollastonite Inorganic materials 0.000 claims description 9
- 239000010456 wollastonite Substances 0.000 claims description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 8
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 8
- 239000011787 zinc oxide Substances 0.000 claims description 8
- 230000004913 activation Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 11
- 239000011810 insulating material Substances 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- 239000010410 layer Substances 0.000 description 7
- 239000004005 microsphere Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000012767 functional filler Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910003471 inorganic composite material Inorganic materials 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000010416 ion conductor Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
-
- 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
-
- 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
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
-
- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
-
- 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
- C08K2003/2296—Oxides; Hydroxides of metals of 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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The application belongs to the technical field of fireproof heat insulation, and particularly relates to a ceramic organic-inorganic composite high-temperature anticorrosive paint which comprises a component A, a component B, a component C and a component D, wherein the component A is modified silicone oil, the component B is a thermal stability phase and a ceramic auxiliary agent, the component C is an oxygen inhibitor and a volume filling phase, and the component D is a heat insulation filler. Compared with the existing common disposable ceramic high-temperature resistant material, the coating provided by the application has the characteristics of flexible construction, and meanwhile, the ceramic thickness is determined by specific local environment temperature, so that the use amount of the heat-proof and heat-insulating material can be reduced to the greatest extent, and the cost is saved.
Description
Technical Field
The invention belongs to the technical field of fireproof heat insulation, is suitable for the fields of new energy sources, energy storage, heat-proof and heat-insulating materials, composite materials, fireproof materials and energy-saving materials, and particularly relates to a ceramic organic-inorganic composite high-temperature anticorrosive coating.
Background
With the development of modern heat treatment equipment and power equipment, more and more industrial applications need to provide heat protection and insulation functions for high temperature environments with long-term intermittent operation (thermal cycle), and typical application scenarios include gas power plants, garbage disposal, heat treatment, and the like. In such a scenario, conventional inorganic material insulation materials are considerably limited by their material properties. For example, inorganic insulating materials generally have a large difference in coefficient of thermal expansion from metal substrates, so that the fixed installation of the insulating materials is greatly restricted. In addition, the inorganic heat-proof material has the problems of high density, easy fragmentation, easy ash formation, difficult construction, easy scaling and the like. Particularly, in the case of frequent and rapid high-temperature heat cycle, the service life and performance of the inorganic heat-proof and insulating material are generally difficult to ensure.
Disclosure of Invention
The invention aims to provide a ceramic organic-inorganic composite high-temperature anticorrosive paint, which solves the problems in the prior art, can improve the effective protection time of the existing high-temperature anticorrosive paint and reduce the cost.
In order to achieve the above purpose, the application is realized by the following technical scheme:
The ceramic organic-inorganic composite high-temperature anticorrosive paint consists of a component A, a component B, a component C and a component D, wherein the component A is modified silicone oil, the component B is a thermal stabilization phase and a ceramic auxiliary agent, the component C is an oxygen inhibitor and a volume filling phase, and the component D is a heat insulation filler; the components in parts by weight are as follows:
50-70 parts of a component A;
20-40 parts of component B;
5-10 parts of component C;
1-10 parts of component D.
Preferably, the modified silicone oil is a room temperature curable silicone or a thermosetting silicone.
Preferably, the component B consists of the following components in parts by weight:
20-30 parts of zirconia;
20-30 parts of aluminum oxide;
20-30 parts of aluminum hydroxide;
5-15 parts of wollastonite;
10-30 parts of kaolin;
1-10 parts of zinc oxide.
Preferably, the zirconia has a D50 of less than 2 microns, the alumina has a D50 of less than 5 microns, the aluminum hydroxide has a D50 of less than 1 micron, the wollastonite has a D50 of 10 microns or less than 30 microns, the kaolin has a D50 of less than 5 microns, and the zinc oxide has a D50 of less than 5 microns.
Preferably, the component C is zirconium metal powder, the D50 of the particle size of the powder is less than 2 microns, and the D90 is less than 10 microns.
Preferably, the component D is spherical hollow glass beads.
An application of the high-temperature anti-corrosion coating of any one of the above, after being applied to a protected surface, requires spraying a layer of nano silica sol on the surface of the coating layer, and then baking at 60-100 ℃ for initial activation.
Preferably, the volume percentage concentration of the silica sol is 20-35%.
The invention has the beneficial effects that;
the invention uses modified silicone oil (also called silica gel) as film forming agent, and uses metal oxide, rare earth metal micropowder and modifier as functional filler. After the construction is completed, the surface needs to be initially passivated with a silica sol.
Different from the conventional disposable ceramic high-temperature resistant material, the material system of the invention can provide long-term heat protection capability after ceramic, has the characteristic of flexible construction compared with the common pre-formed high-temperature resistant material, and simultaneously, the ceramic thickness is determined by specific local environment temperature, so that the use amount of the heat-proof and insulating material can be reduced to the greatest extent, and the cost is saved.
Detailed Description
The following examples are given by way of illustration only and are not to be construed as limiting the scope of the invention.
The invention mainly aims at improving the service life and performance of the long-acting high-temperature heat protection coating. In conventional gas turbine and coal fired boiler-like burners, the internal structure is often required to withstand severe temperature changes. Meanwhile, excessive carbon deposition needs to be prevented on the surface of the internal structure, otherwise, the combustion function is greatly affected, the carbon deposition is accumulated to a certain degree, and shutdown is needed to be cleaned. This is a very costly for large power plants that run continuously. The structure of the burner and flue is often complex and dangerous, further increasing the maintenance costs. Therefore, a surface heat-proof and heat-proof material capable of effectively preventing carbon deposition for a long time is always pursued in the power industry.
The composite material is an organic-inorganic composite material, and can achieve three main functions simultaneously by using a ceramic formula and a metal zirconium powder oxygen inhibitor: 1. and a firm organic bonding layer is formed on the surface of the part to be protected, and the organic composite layer can effectively absorb the volume change of the metal component caused by severe temperature variation, so that the material of the fire-ward layer is not damaged. 2. And the partially ceramic material and the metal zirconium powder can form an airtight heat-insulating oxygen-blocking layer in the middle of the coating after service. The method is mainly characterized in that gaps are filled by volume expansion during zirconium metal oxidation, and the formed zirconium dioxide has the property of an oxygen ion conductor at high temperature, so that the internal organic silica gel adhesive can be protected by virtue of reduction characteristics of flame on a flame face and high-temperature tail gas. 3. The surface ceramic layer formed by the induction of the silica sol has good heat preservation and surface integrity at the beginning, and can effectively delay surface carbonization.
After the ceramic organic-inorganic composite high-temperature anticorrosive paint is coated on the surface of a metal base material in a paint form, a ceramic surface layer which exists stably for a long time is obtained through a ceramic reaction process, carbon fibers and aluminosilicate fibers in the coating can provide mechanical adaptation capability for different ceramic degrees, and rare earth metal micro powder in the coating improves the anticorrosive performance of a high-temperature interface. The contact part of the coating and the metal substrate can maintain some basic physical properties of the organic polymer material, and provide good protection for the metal substrate.
The application relates to a ceramic organic-inorganic composite high-temperature anticorrosive paint, which consists of a component A, a component B, a component C and a component D, wherein the component A is modified silicone oil (also called silica gel) serving as a base gel continuous phase, and can be normal-temperature curing silica gel, such as 107 silicone oil and derivative modified types thereof, and can also be thermosetting silica gel.
The component B is a heat stable phase and a ceramic additive and consists of zirconia, alumina, aluminum hydroxide, wollastonite, kaolin or zinc oxide powder. The D50 of zirconia is less than 2 microns, the D50 of alumina is less than 5 microns, the D50 of aluminum hydroxide is less than 1 micron, the D50 of wollastonite is less than or equal to 10 microns and less than or equal to 30 microns, the D50 of kaolin is less than 5 microns, and the D50 of zinc oxide is less than 5 microns.
The component C is an oxygen inhibitor and a volume filling phase, the application is zirconium metal powder, the particle diameter D50 of the powder is smaller than 2 microns, and the D90 is smaller than 10 microns.
The component D is a heat insulation filler, and is specifically spherical hollow glass beads.
Preparation of component B example 1
The component B is a mixture P1 consisting of 20 parts of zirconia, 20 parts of alumina, 20 parts of aluminum hydroxide, 5 parts of wollastonite, 10 parts of kaolin and 2 parts of zinc oxide.
Preparation example 2 of component B
The component B is a mixture P2 consisting of 30 parts of zirconia, 30 parts of alumina, 30 parts of aluminum hydroxide, 15 parts of wollastonite, 30 parts of kaolin and 10 parts of zinc oxide.
Preparation of component B example 3
The component B is a mixture P3 consisting of 22 parts of zirconia, 28 parts of alumina, 25 parts of aluminum hydroxide, 10 parts of wollastonite, 20 parts of kaolin and 6 parts of zinc oxide.
Preparation example 4 of component B
The component B is a mixture P4 consisting of 25 parts of zirconia, 23 parts of alumina, 30 parts of aluminum hydroxide, 12 parts of wollastonite, 18 parts of kaolin and 5 parts of zinc oxide.
Example 1
The ceramic organic-inorganic composite high-temperature anticorrosive paint consists of 50 parts of normal-temperature cured silica gel, 20 parts of P1, 5 parts of metal zirconium powder and 1 part of spherical hollow glass microsphere.
Example 2
The ceramic organic-inorganic composite high-temperature anticorrosive paint consists of 70 parts of normal-temperature cured silica gel as component A, 40 parts of P1 as component B, 10 parts of metal zirconium powder as component C and 10 parts of spherical hollow glass beads as component D.
Example 3
The ceramic organic-inorganic composite high-temperature anticorrosive paint consists of a component A of 55 parts of normal-temperature cured silica gel, a component B of 30 parts of P1, a component C of 6 parts of metallic zirconium powder and a component D of 3 parts of spherical hollow glass microspheres.
Example 4
The ceramic organic-inorganic composite high-temperature anticorrosive paint consists of 60 parts of normal-temperature cured silica gel as component A, 26 parts of P1 as component B, 8 parts of zirconium metal powder as component C and 7 parts of spherical hollow glass beads as component D.
Example 5
The ceramic organic-inorganic composite high-temperature anticorrosive paint consists of 53 parts of normal-temperature cured silica gel, 24 parts of P2, 5 parts of metal zirconium powder and 6 parts of spherical hollow glass beads.
Example 6
The ceramic organic-inorganic composite high-temperature anticorrosive paint consists of 70 parts of normal-temperature cured silica gel as component A, 38 parts of P2 as component B, 10 parts of metal zirconium powder as component C and 10 parts of spherical hollow glass beads as component D.
Example 7
The ceramic organic-inorganic composite high-temperature anticorrosive paint consists of 58 parts of normal-temperature cured silica gel as component A, 33 parts of P2 as component B, 7 parts of metal zirconium powder as component C and 4 parts of spherical hollow glass beads as component D.
Example 8
The ceramic organic-inorganic composite high-temperature anticorrosive paint consists of 67 parts of normal-temperature cured silica gel as component A, 34 parts of P2 as component B, 8 parts of zirconium metal powder as component C and 7 parts of spherical hollow glass beads as component D.
Example 9
The ceramic organic-inorganic composite high-temperature anticorrosive paint consists of 50 parts of normal-temperature cured silica gel, 21 parts of P3, 6 parts of metal zirconium powder and 4 parts of spherical hollow glass beads.
Example 10
The ceramic organic-inorganic composite high-temperature anticorrosive paint consists of 70 parts of normal-temperature cured silica gel as component A, 37 parts of P3 as component B, 10 parts of metal zirconium powder as component C and 3 parts of spherical hollow glass beads as component D.
Example 11
The ceramic organic-inorganic composite high-temperature anticorrosive paint consists of a component A of 55 parts of normal-temperature cured silica gel, a component B of 28 parts of P3, a component C of 6 parts of metallic zirconium powder and a component D of 2 parts of spherical hollow glass microspheres.
Example 12
The ceramic organic-inorganic composite high-temperature anticorrosive paint consists of a component A of 63 parts of normal-temperature cured silica gel, a component B of 31 parts of P3, a component C of 6 parts of metallic zirconium powder and a component D of 5 parts of spherical hollow glass microspheres.
Example 13
The ceramic organic-inorganic composite high-temperature anticorrosive paint consists of 54 parts of normal-temperature cured silica gel as component A, 21 parts of P4 as component B, 6 parts of zirconium metal powder as component C and 3 parts of spherical hollow glass beads as component D.
Example 14
The ceramic organic-inorganic composite high-temperature anticorrosive paint consists of a component A of 66 parts of normal-temperature cured silica gel, a component B of 34 parts of P4, a component C of 9 parts of metallic zirconium powder and a component D of 9 parts of spherical hollow glass microspheres.
Example 15
The ceramic organic-inorganic composite high-temperature anticorrosive paint consists of silica gel with a component A of 57 parts and a component B of 29 parts, P4 with a component C of 7 parts, zirconium metal powder with a component D of 4 parts, and spherical hollow glass beads.
Example 16
The ceramic organic-inorganic composite high-temperature anticorrosive paint consists of 63 parts of normal-temperature cured silica gel, 27 parts of P4, 6 parts of zirconium metal powder and 5 parts of spherical hollow glass beads.
The ceramic organic-inorganic composite high-temperature anticorrosive paint needs to be sprayed with a layer of nano silica sol on the surface of the paint after the paint is applied to the surface to be protected, and then is baked at 60-100 ℃ for initial activation. The concentration of the silica sol is 20-35%, and the spraying thickness is that a continuous liquid film is formed on the surface.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (5)
1. The ceramic organic-inorganic composite high-temperature anticorrosive paint is characterized by comprising a component A, a component B, a component C and a component D, wherein the component A is modified silicone oil, the component B is a thermal stabilization phase and a ceramic auxiliary agent, the component C is an oxygen inhibitor and a volume filling phase, and the component D is a heat insulation filler; the components in parts by weight are as follows:
The component B consists of the following components in parts by weight:
the component C is zirconium metal powder, the D50 of the particle size of the powder is less than 2 microns, and the D90 is less than 10 microns;
The component D is spherical hollow glass beads.
2. The ceramifiable organic-inorganic composite high-temperature anticorrosive paint according to claim 1, wherein the modified silicone oil is normal-temperature curable silica gel or thermosetting silica gel.
3. The ceramifiable organic-inorganic composite high temperature anticorrosive coating according to claim 1, wherein the D50 of zirconia is less than 2 microns, the D50 of alumina is less than 5 microns, the D50 of aluminum hydroxide is less than 1 micron, the D50 of wollastonite is 10 microns or less than 30 microns, the D50 of kaolin is less than 5 microns, and the D50 of zinc oxide is less than 5 microns.
4. A use of the high temperature anticorrosive paint according to any one of claims 1 to 3, wherein after application to the surface to be protected, a layer of nano silica sol is sprayed on the surface of the paint layer, followed by baking at 60-100 ℃ for initial activation.
5. The method according to claim 4, wherein the silica sol has a volume percentage concentration of 20-35%.
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