CN107880654B - One kind can high-temperature baking water paint - Google Patents
One kind can high-temperature baking water paint Download PDFInfo
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- CN107880654B CN107880654B CN201711183963.XA CN201711183963A CN107880654B CN 107880654 B CN107880654 B CN 107880654B CN 201711183963 A CN201711183963 A CN 201711183963A CN 107880654 B CN107880654 B CN 107880654B
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- emulsion
- water
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- quick
- drying
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 95
- 239000003973 paint Substances 0.000 title claims abstract description 59
- 239000000839 emulsion Substances 0.000 claims abstract description 85
- 238000001035 drying Methods 0.000 claims abstract description 56
- 239000011248 coating agent Substances 0.000 claims abstract description 51
- 238000000576 coating method Methods 0.000 claims abstract description 51
- 238000005336 cracking Methods 0.000 claims abstract description 12
- 239000000945 filler Substances 0.000 claims description 85
- 239000000843 powder Substances 0.000 claims description 25
- 239000007787 solid Substances 0.000 claims description 24
- 239000000835 fiber Substances 0.000 claims description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 20
- 239000003822 epoxy resin Substances 0.000 claims description 16
- 229920000647 polyepoxide Polymers 0.000 claims description 16
- 239000010445 mica Substances 0.000 claims description 13
- 229910052618 mica group Inorganic materials 0.000 claims description 13
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 11
- OCKPCBLVNKHBMX-UHFFFAOYSA-N butylbenzene Chemical compound CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 claims description 10
- 229920005749 polyurethane resin Polymers 0.000 claims description 10
- 239000003365 glass fiber Substances 0.000 claims description 9
- 229910021536 Zeolite Inorganic materials 0.000 claims description 8
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 8
- 239000002808 molecular sieve Substances 0.000 claims description 8
- -1 polypropylene Polymers 0.000 claims description 8
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 8
- 239000010457 zeolite Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 7
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 7
- 229920001155 polypropylene Polymers 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 6
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 6
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 6
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 5
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 5
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 4
- 239000011118 polyvinyl acetate Substances 0.000 claims description 4
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 4
- 229910052582 BN Inorganic materials 0.000 claims description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- 229920000180 alkyd Polymers 0.000 claims description 3
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000000460 chlorine Substances 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 239000000052 vinegar Substances 0.000 claims description 2
- 235000021419 vinegar Nutrition 0.000 claims description 2
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical compound [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 claims 1
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- 239000000758 substrate Substances 0.000 abstract description 5
- 238000013016 damping Methods 0.000 abstract description 4
- 238000011049 filling Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000013012 foaming technology Methods 0.000 abstract description 3
- 238000009834 vaporization Methods 0.000 abstract 1
- 230000008016 vaporization Effects 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 37
- 239000003795 chemical substances by application Substances 0.000 description 29
- 239000002270 dispersing agent Substances 0.000 description 29
- 239000000080 wetting agent Substances 0.000 description 29
- 239000002562 thickening agent Substances 0.000 description 25
- 239000002518 antifoaming agent Substances 0.000 description 22
- 239000000049 pigment Substances 0.000 description 22
- 238000003756 stirring Methods 0.000 description 13
- 238000002156 mixing Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 10
- 239000004925 Acrylic resin Substances 0.000 description 8
- 229920000178 Acrylic resin Polymers 0.000 description 8
- 238000000227 grinding Methods 0.000 description 8
- 239000002994 raw material Substances 0.000 description 8
- 239000006229 carbon black Substances 0.000 description 7
- 239000006185 dispersion Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000000440 bentonite Substances 0.000 description 4
- 229910000278 bentonite Inorganic materials 0.000 description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 4
- 230000009477 glass transition Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000005909 Kieselgur Substances 0.000 description 3
- 230000005587 bubbling Effects 0.000 description 3
- 125000002091 cationic group Chemical group 0.000 description 3
- 239000011231 conductive filler Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 229910021485 fumed silica Inorganic materials 0.000 description 3
- 238000009775 high-speed stirring Methods 0.000 description 3
- 229920000768 polyamine Polymers 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000010456 wollastonite Substances 0.000 description 3
- 229910052882 wollastonite Inorganic materials 0.000 description 3
- LXOFYPKXCSULTL-UHFFFAOYSA-N 2,4,7,9-tetramethyldec-5-yne-4,7-diol Chemical class CC(C)CC(C)(O)C#CC(C)(O)CC(C)C LXOFYPKXCSULTL-UHFFFAOYSA-N 0.000 description 2
- NECRQCBKTGZNMH-UHFFFAOYSA-N 3,5-dimethylhex-1-yn-3-ol Chemical compound CC(C)CC(C)(O)C#C NECRQCBKTGZNMH-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- FWVCSXWHVOOTFJ-UHFFFAOYSA-N 1-(2-chloroethylsulfanyl)-2-[2-(2-chloroethylsulfanyl)ethoxy]ethane Chemical compound ClCCSCCOCCSCCCl FWVCSXWHVOOTFJ-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical group CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000009736 wetting Methods 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
- C09D109/00—Coating compositions based on homopolymers or copolymers of conjugated diene hydrocarbons
- C09D109/06—Copolymers with styrene
-
- 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
- C09D111/00—Coating compositions based on homopolymers or copolymers of chloroprene
-
- 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
- C09D131/00—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 an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Coating compositions based on derivatives of such polymers
- C09D131/02—Homopolymers or copolymers of esters of monocarboxylic acids
- C09D131/04—Homopolymers or copolymers of vinyl acetate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention provides one kind can high-temperature baking water paint.It is provided by the invention can high-temperature baking water paint utilize fast dry emulsion MOLECULE DESIGN, escape the moisture in coating quickly, achieve the purpose that quick-drying；By addition heat filling come the inside and outside temperature difference of adjusting coating, moisture vaporization and evolution speed are controlled；The microporous foam technology of porous aggregate is utilized simultaneously, make coating is inside and outside to form a microporous network system being intertwined, promote the vapor inside coating smoothly to export, fundamentally solves aqueous damping coating film cracking and key issues of bulge during high-temperature baking.The experimental results showed that it is provided by the invention can high-temperature baking water paint 2mm thickness apply when, do not crack through 140 DEG C of baking 30min films, not blistering, to substrate, adhesive force is good.
Description
Technical Field
The invention relates to the technical field of water-based paint, in particular to water-based paint capable of being baked at high temperature.
Background
The paint is a mixture composed of macromolecular resin, pigment and filler, assistant, solvent and the like, and can be coated on the surface of a base material to form a novel macromolecular material firmly attached with a continuous coating film. The traditional solvent-based paint contains a large amount of organic volatile matters in the manufacturing and using processes, causes more or less pollution and damage to the environment, and causes harm to human bodies. The development of the coating can improve the production and living demands of human beings and simultaneously rapidly deteriorate the environment.
Water-based paint, also known as water-based paint or water-dispersed paint, is a paint using water as a solvent or a dispersion medium, and is widely used in the field of building paint. Compared with solvent-based paint, the water-based paint has the advantages of being capable of being directly constructed on wet surfaces and in humid environments, reducing VOC (volatile organic Compounds) emission, reducing construction fire hazard, being capable of being directly cleaned by water and the like. With the continuous promotion and the deepened development of the country and the whole society to the concept of low carbon, the water-based paint has greater advantages and wider development space compared with solvent-based paint.
Although the water-based paint uses water as a solvent, the harm caused by an organic solvent can be avoided, the water in the water-based paint has a high boiling point, so the volatilization process is very slow, and the drying speed is strongly dependent on the humidity of the environment. Particularly, when the coating thickness of the water-based paint is thick (more than 2 mm), if a drying mode of drying at high temperature (higher than 120 ℃) is adopted, the difference of the drying environment inside and outside the coating film is large, so that the surface layer is dried firstly during drying, a layer of compact organic matter film is formed on the surface, the escape of internal moisture is blocked, the internal moisture is not quickly vaporized at high temperature, and when the internal water vapor reaches a certain pressure, the surface coating film is broken, and the coating film has the problems of cracking, bubbling, reduced adhesive force and the like.
Disclosure of Invention
The invention aims to provide a water-based paint capable of being baked at high temperature. The high-temperature-bakeable water-based paint provided by the invention can be directly baked and dried at high temperature during thick coating, and has no problems of cracking, bubbling, reduced adhesive force and the like.
The invention provides a high-temperature-bakeable water-based paint which comprises the following components in percentage by mass:
the solid content of the quick-drying emulsion is 35-60% by mass.
Preferably, the high-temperature-bakable water-based paint comprises the following components in percentage by mass:
preferably, the quick-drying emulsion comprises one or more of neoprene emulsion, butyronitrile emulsion, butylbenzene emulsion, styrene-acrylic emulsion, pure acrylic emulsion, vinyl acetate-acrylic emulsion, tertiary vinyl acetate emulsion, polyvinyl acetate emulsion and chlorine partial emulsion.
Preferably, the fast-drying emulsion further comprises a non-fast-drying aqueous resin.
Preferably, the common filler comprises one or more of talcum powder, calcium carbonate, mica powder, titanium dioxide and silica powder.
Preferably, the thermally conductive filler includes one or more of aluminum nitride, boron nitride, silicon carbide, magnesium oxide, aluminum oxide, zinc oxide, silicon dioxide, carbon powder, and graphite powder.
Preferably, the porous filler comprises one or more of zeolite powder, molecular sieve and diatomaceous earth.
Preferably, the porosity of the porous filler is 30-90%.
Preferably, the crack resistant fibers include one or more of polypropylene fibers, polyacrylonitrile fibers, carbon fibers, cellulose fibers, and glass fibers.
Preferably, the solid content of the high-temperature-bakable water-based paint is more than 70%.
The invention provides a high-temperature-bakeable water-based paint which comprises the following components in percentage by mass: 5-60% of quick-drying emulsion (by mass, the solid content of the quick-drying emulsion is 35-60%), 20-70% of common filler, 1-40% of porous filler, 1-40% of heat-conducting filler, 0.05-5% of anti-cracking fiber, 0.05-10% of dispersing agent, 0.05-10% of wetting agent, 0.05-10% of anti-settling agent, 0.05-20% of color paste and 0.1-25% of water. The high-temperature-bakeable water-based paint provided by the invention utilizes the molecular design of the quick-drying emulsion to enable the moisture in the coating to quickly escape, thereby achieving the purpose of quick drying; the temperature difference between the inside and the outside of the coating is adjusted by adding the heat-conducting filler, and the moisture gasification and escape speed is controlled; meanwhile, by utilizing a micropore foaming technology of the porous filler, a mutually-penetrating micropore network system is formed inside and outside the coating, so that water vapor inside the coating is smoothly led out, and the key problems of film cracking, bulging and the like of the water-based damping coating in a high-temperature baking process are fundamentally solved. Experimental results show that when the high-temperature-bakeable water-based paint provided by the invention is coated at the thickness of 2mm, the coating does not crack or bubble after being baked for 30min at the temperature of 140 ℃, and the paint has good adhesive force to a base material.
Detailed Description
The invention provides a high-temperature-bakeable water-based paint which comprises the following components in percentage by mass: 5-60% of quick-drying emulsion, 20-70% of common filler, 1-40% of porous filler, 1-40% of heat-conducting filler, 0.05-5% of anti-cracking fiber, 0.05-10% of dispersing agent, 0.05-10% of wetting agent, 0.05-10% of anti-settling agent, 0.05-20% of color paste and 0.1-25% of water, wherein the solid content of the quick-drying emulsion is 35-60% by mass.
According to the mass content, the high-temperature-bakeable water-based paint provided by the invention comprises 5-60% of quick-drying emulsion, preferably 20-40%, and more preferably 25-35%. In the invention, the solid content of the quick-drying emulsion is 35-60% by mass, preferably 40-55% by mass, and more preferably 45-50% by mass.
In the present invention, the quick-drying emulsion preferably includes one or more, more preferably two or three, of a chloroprene emulsion, a butyronitrile emulsion, a butylbenzene emulsion, a styrene-acrylic emulsion, a pure acrylic emulsion, an acrylic emulsion, a tertiary acrylic emulsion, a polyvinyl acetate emulsion, and a polyvinylidene chloride emulsion. In the invention, the quick-drying component in the quick-drying emulsion has special molecular design, cationic functional groups (such as polyamine) are introduced on the molecular chain, and the cationic polyamine is deprotonated by adding volatile alkali (such as ammonia water), so that the emulsion can exist stably; in the process of film formation, polyamine is protonated along with volatilization of ammonia water, the interaction between a cationic group and an anionic group on a molecular chain of an anionic surfactant is utilized to destroy the stability of latex particles, and the capillary pressure in a coating is utilized to enable moisture in the coating to quickly escape, so that the aim of quick drying is fulfilled.
In the present invention, the quick-drying emulsion preferably further comprises a non-quick-drying type aqueous resin; the non-quick-drying type water-based resin preferably comprises one or more of water-based alkyd resin, water-based epoxy resin, water-based polyurethane resin, water-based acrylic modified epoxy resin and water-based acrylic modified polyurethane resin.
In the present invention, when the quick-drying emulsion includes a plurality of components, each component in the quick-drying emulsion preferably has a different glass transition temperature (T)g). In the invention, the glass transition temperature of each component in the quick-drying emulsion is preferably-20-80 ℃, more preferably 0-60 ℃, and most preferably 20-40 ℃. In the present invention, the components having different glass transition temperatures provide quick-drying emulsions withWider temperature range and higher damping performance. In embodiments of the invention, the fast-drying emulsion is preferably a mixture of a waterborne acrylic resin, a waterborne epoxy resin, and a waterborne polyurethane resin, or a mixture of three waterborne acrylic resins having different glass transition temperatures, or a mixture of a waterborne acrylic resin and a waterborne epoxy resin, or a mixture of a waterborne acrylic resin and a waterborne alkyd resin.
In the present invention, when the quick-drying emulsion includes a plurality of components, the present invention does not require a particular ratio of the components in the quick-drying emulsion, and may be combined in any ratio. The source of the fast-drying emulsion is not particularly limited in the present invention, and it may be prepared using a commercially available product or according to a preparation method well known to those skilled in the art.
According to the mass content, the high-temperature-bakeable water-based paint provided by the invention comprises 20-70% of common filler, preferably 30-60%, and more preferably 40-50%. In the present invention, the common filler preferably includes one or more, more preferably two, of talc powder, calcium carbonate, mica powder, titanium dioxide powder, and silica powder. In the embodiment of the present invention, the common filler is preferably a combination of talc powder and mica powder, or a combination of calcium carbonate and mica powder, or a combination of fine silica powder and mica powder. In the present invention, when the conventional filler includes a plurality of components, the ratio of the components is not particularly limited, and may be mixed in any ratio.
In the invention, the particle size of the common filler is preferably 20-5000 meshes, more preferably 100-4000 meshes, and most preferably 150-400 meshes. The source of the conventional filler is not particularly limited in the present invention, and a commercially available product known to those skilled in the art may be used.
According to the mass content, the high-temperature-bakeable water-based paint provided by the invention comprises 1-40% of porous filler, preferably 5-30%, and more preferably 10-20%. In the present invention, the porous filler preferably includes one or more, more preferably two, of zeolite powder, molecular sieve and diatomaceous earth. In embodiments of the invention, the porous filler preferably comprises zeolite powder and molecular sieve. In the present invention, when the porous filler includes a plurality of components, the ratio of the components is not particularly limited, and may be blended in any ratio.
In the present invention, the porosity of the porous filler is preferably 30 to 90%, more preferably 45 to 85%, and most preferably 50 to 80%. In the invention, the particle size of the porous filler is preferably 20-5000 meshes, more preferably 100-4000 meshes, and most preferably 150-400 meshes. The source of the porous filler is not particularly limited in the present invention, and a commercially available product known to those skilled in the art may be used.
In the invention, the porous filler applies the micropore foaming technology to the water-based paint, so that a mutually-penetrated micropore network system is formed inside and outside the paint, water vapor inside the paint is promoted to be smoothly led out, and the key problems of film cracking, bulging and the like of the water-based damping paint in the high-temperature baking process are fundamentally solved.
According to the mass content, the high-temperature-bakeable water-based paint provided by the invention comprises 1-40% of heat-conducting filler, preferably 5-30%, and more preferably 10-20%. In the present invention, the thermally conductive filler preferably includes one or more, more preferably two, of aluminum nitride, boron nitride, silicon carbide, magnesium oxide, aluminum oxide, zinc oxide, silicon dioxide, carbon powder, and graphite powder. In the present invention, when the thermally conductive filler includes a plurality of components, the ratio of the components is not particularly limited, and may be mixed in any ratio.
In the invention, the particle size of the heat-conducting filler is preferably 20-5000 meshes, more preferably 100-4000 meshes, and most preferably 150-400 meshes. In the invention, the heat-conducting filler has good heat conductivity, can adjust the temperature difference between the inside and the outside of the coating and control the moisture gasification and escape speed.
According to the mass content, the high-temperature-bakeable water-based paint provided by the invention comprises 0.05-5% of anti-cracking fiber, preferably 0.1-3%, and more preferably 1-5%. In the present invention, the crack-resistant fiber preferably includes one or more of polypropylene fiber, polyacrylonitrile fiber, carbon fiber, cellulose fiber, and glass fiber. In the invention, the length of the anti-cracking fiber is preferably 0.1-8 mm, more preferably 0.5-5 mm, and most preferably 1-3 mm.
The high-temperature-bakeable water-based paint comprises 0.05-10% of dispersant, preferably 0.1-8%, and more preferably 1-5% by mass. The high-temperature-bakeable water-based paint comprises 0.05-10% of wetting agent, preferably 0.1-8%, and more preferably 1-5% by mass. According to the mass content, the high-temperature-bakeable water-based paint provided by the invention comprises 0.05-10% of anti-settling agent, preferably 0.1-8%, and more preferably 1-5%. In the invention, the dispersing agent, the wetting agent and the anti-settling agent are used as auxiliary agents, so that the dispersion uniformity of the quick-drying emulsion and the filler in water can be improved, the filler is prevented from settling, and a coating film with uniform component thickness can be obtained.
The kind and source of the dispersant, wetting agent and anti-settling agent are not particularly limited in the present invention, and commercially available water-based paint auxiliaries well known to those skilled in the art may be used. In the invention, the dispersant is preferably one or more of BYK180, BYK184, BYK 1910, BYK 191, BYK 2010, BYK2012, Tego 735W, Tego 740W, Tego 750W, Tego 752W and Tego 760W. In the present invention, the wetting agent is preferably one or more of Tego 245, 250, 260, 270, 280, 450, 500, 505, 510, Twin4000, Surfynol104 series, Surfynol420, Surfynol440, Surfynol465, Surfynol485, Surfynol TG, Surfynol DF-75, Surfynol MD-20, efficient wetting agent-Dynol 604\607, Dynol800\810, Dynol960\980 and Dynol 36. In the invention, the anti-settling agent is preferably one or more of BYK420, BYK RD, BYK RDS, BYKMP-100, bentonite, polyamide wax and fumed silica.
The high-temperature-bakeable water-based paint comprises 0.05-20% of color paste, preferably 0.1-15%, and more preferably 1-10% by mass. The invention has no special limitation on the type and the source of the color paste, and the color paste can be prepared from commercially available color pastes well known to those skilled in the art.
According to the mass content, the high-temperature-bakeable water-based coating provided by the invention comprises 0-25% of water, preferably 0.5-20%, and more preferably 1-10%.
The high-temperature-bakeable water-based paint provided by the invention preferably further comprises 0.05-3% of a thickening agent by mass, and more preferably 0.1-1.5% by mass. The high-temperature-bakeable water-based paint provided by the invention preferably further comprises 0.05-3% of a defoaming agent by mass, more preferably 0.1-2% and most preferably 0.2-1.5%. The kind and source of the thickener and defoamer are not particularly limited in the present invention, and commercially available products for paints well known to those skilled in the art may be used. In the invention, the thickening agent and the defoaming agent are used as auxiliary agents, so that bubbles in the coating can be effectively eliminated, and the coating is prevented from sagging during spraying.
In the invention, the solid content of the high-temperature-bakeable water-based paint is preferably more than 70%, more preferably 75-95%, and most preferably 80-90%. In the present invention, the solid content refers to substances other than water and organic solvents in the coating material.
The method for preparing the high temperature bakeable water-based paint is not particularly limited in the present invention, and the method for preparing the composition well known to those skilled in the art can be adopted. In the present invention, the preparation of the high-temperature bakable water-based paint preferably comprises the following steps: mixing the quick-drying emulsion, common filler, heat-conducting filler, porous filler, anti-cracking fiber, dispersing agent, wetting agent, anti-settling agent, color paste and water to obtain the high-temperature-bakeable water-based paint.
The invention preferably mixes the quick-drying emulsion with a dispersant, a wetting agent, an anti-settling agent and color paste to obtain a mixed material; then mixing the mixed material with common filler, heat-conducting filler and porous filler to obtain slurry; and finally, mixing the slurry with water to obtain the high-temperature-bakeable water-based paint.
In the present invention, when a thickener and/or a defoaming agent is further included in the quick-drying emulsion, the thickener and/or the defoaming agent is preferably added after the filler is added.
The operation of mixing the materials is not particularly limited in the invention, and the technical scheme for preparing the water-based paint which is well known to the skilled person can be adopted. In the present invention, the mixing of the respective materials is preferably performed in a high-speed disperser or a double planetary mixer.
According to the invention, preferably, after the materials are mixed, the mixed product is ground to obtain the high-temperature-bakeable water-based paint. In the invention, the particle size of the solid matter in the high-temperature-bakeable water-based paint is preferably less than 100 μm, and more preferably 50-80 μm. The grinding operation is not particularly limited, and the material can be ground to the required particle size.
In order to further illustrate the present invention, the high temperature bakeable aqueous coating provided by the present invention is described in detail below with reference to comparative examples and examples, which should not be construed as limiting the scope of the present invention.
Comparative example 1:
the raw materials comprise the following components in percentage by mass: 40% of non-quick-drying emulsion (solid content 42%), 54.9% of common filler, 0.3g of polypropylene fiber, 2.5% of dispersing agent, 0.3% of wetting agent, 1.0% of anti-settling agent, 0.5% of pigment, 0.25% of thickening agent, 0.25% of defoaming agent and 0% of water.
Wherein,
non-fast drying emulsions: 20g of waterborne acrylic resin, 10g of waterborne epoxy resin and 10g of waterborne polyurethane resin;
filling: 44.9g of talcum powder with the particle size of 325 meshes and 10g of mica powder with the particle size of 400 meshes;
0.3mm long polypropylene fiber: 0.3 g;
dispersant Tego 760W 2.5 g;
wetting agent Tego 2450.3 g;
BYK4201.0 g of anti-settling agent;
0.5g of pigment carbon black;
0g of water;
thickener PUR-62 polyurethane thickener 0.25g
Antifoaming agent Tego 8100.25 g
Uniformly mixing the water-based acrylic emulsion, the water-based epoxy resin and the water-based polyurethane resin under high-speed dispersion, sequentially adding a dispersing agent, a wetting agent, an anti-settling agent and a pigment, stirring at a high speed for 10 minutes, adding a filler, dispersing at a high speed for 30 minutes, adding a thickening agent, stirring for 30 minutes, adding a defoaming agent to prepare a slurry, and grinding the slurry through a conical mill to obtain the coating with the particle size of less than 100 micrometers, wherein the solid content is 75%.
Comparative example 2:
the raw materials comprise the following components in percentage by mass: 35% of quick-drying emulsion (solid content is 45%), 58.7% of common filler, 3% of dispersing agent, 0.3% of polyacrylonitrile fiber, 1.0% of wetting agent, 0.8% of anti-settling agent, 0.5% of pigment, 0.35% of thickening agent, 0.35% of defoaming agent and 0% of water;
wherein,
quick-drying emulsion: t isg15g of styrene-acrylic emulsion T at 20 DEG CgIs 10g of pure acrylic emulsion T at 50 DEG Cg10g of vinyl acetate-acrylic emulsion at the temperature of-10 ℃;
filling: 48.7g of calcium carbonate with the particle size of 325 meshes and 10g of mica powder with the particle size of 100 meshes;
polyacrylonitrile fiber 0.3mm long: 0.3 g;
750 g of dispersant Tego;
wetting agent air chemistry 104DPM 1.0 g;
0.8g of anti-settling agent fumed silica;
0.5g of pigment carbon black;
0g of water;
thickener BYKRD 0.35g
Antifoaming agent Tego 8250.35 g
The water-based acrylic resin is uniformly mixed under high-speed stirring, the dispersing agent, the wetting agent, the anti-settling agent and the pigment are sequentially added, the high-speed stirring is carried out for 10 minutes, the porous filler and other fillers are added, the high-speed dispersion is carried out for 30 minutes, the thickening agent is added, the stirring is carried out for 30 minutes, the defoaming agent is added, and then the coating with the particle size of less than 100 micrometers is obtained through conical grinding, wherein the solid content is 77.7%.
Comparative example 3:
the raw materials comprise the following components in percentage by mass: 30% of non-quick-drying emulsion (solid content is 50%), 43.5% of common filler, 10% of porous filler, 10% of heat-conducting filler, 3% of dispersing agent, 0.3% of glass fiber, 1.2% of wetting agent, 0.8% of anti-settling agent, 0.5% of pigment, 0.25% of thickening agent, 0.45% of defoaming agent and 0% of water;
wherein,
non-fast drying emulsions: 15g of water-based acrylic resin and 15g of water-based epoxy resin;
common filler: 31g of wollastonite with the particle size of 400 meshes and 12.5g of mica powder with the particle size of 200 meshes;
porous filler: 5g of zeolite powder with the porosity of 42 percent and the particle size of 300 meshes, and 5g of molecular sieve with the porosity of 48 percent and the particle size of 300 meshes;
the heat-conducting filler is: 10g of 400-mesh aluminum oxide;
glass fiber of 0.3mm length: 0.3 g;
dispersant BYK 1913.0 g;
wetting agent Tego 2701.2 g;
0.8g of anti-settling agent bentonite;
0.5g of pigment carbon black;
0g of water;
thickener BYKRDS 0.45g
Antifoaming agent Tego 8100.25 g
Uniformly mixing the waterborne acrylic resin, the waterborne epoxy resin and the waterborne polyurethane resin (the component is not contained in the raw materials) under high-speed dispersion, sequentially adding the dispersing agent, the wetting agent, the anti-settling agent and the pigment, stirring at high speed for 10 minutes, adding the porous filler and other fillers, dispersing at high speed for 30 minutes, adding the thickening agent, stirring for 30 minutes, then adding the defoaming agent, and then grinding by a conical mill to obtain the coating with the particle size of less than 100 micrometers, wherein the solid content is 81.9%.
Example 1:
the raw materials comprise the following components in percentage by mass: 40 percent of quick-drying emulsion (solid content is 42 percent), 45 percent of filler, 10 percent of porous filler, 0.3 percent of polypropylene fiber, 2.4 percent of dispersant, 0.3 percent of wetting agent, 1.0 percent of anti-settling agent, 0.5 percent of pigment, 0.25 percent of thickening agent, 0.25 percent of defoaming agent and 0 percent of water;
wherein,
quick-drying emulsion: 20g of butylbenzene emulsion with Tg of 20 ℃, 10g of waterborne epoxy resin and 10g of waterborne polyurethane resin;
common filler: 35g of talcum powder with the particle size of 325 meshes and 10g of mica powder with the particle size of 400 meshes;
porous filler: 5g of zeolite powder with the porosity of 30 percent and the particle size of 200 meshes, 5g of molecular sieve with the porosity of 45 percent and the particle size of 200 meshes;
heat-conducting filler: 15g of silicon carbide, namely 15g of silicon carbide,
0.3g of polypropylene fiber and 3mm of length;
dispersant Tego 760W 2.5 g;
wetting agent Tego 2450.3 g;
BYK4201.0 g of anti-settling agent;
0.5g of pigment carbon black;
0g of water;
thickener PUR-62 polyurethane thickener 0.45g
Antifoaming agent Tego 8100.25 g
The preparation method comprises the steps of uniformly mixing the butylbenzene emulsion, the water-based epoxy resin and the water-based polyurethane resin under high-speed dispersion, sequentially adding a dispersing agent, a wetting agent, an anti-settling agent and a pigment, stirring at a high speed for 10 minutes, adding the porous filler and other fillers, dispersing at a high speed for 30 minutes, adding a thickening agent, adjusting the viscosity, stirring for 30 minutes, adding a defoaming agent to prepare slurry, and grinding the slurry through a conical mill to obtain the coating with the particle size of less than 100 micrometers, wherein the solid content is 75%.
The properties of the coating prepared in this example were: the coating is blade-coated or high-pressure sprayed on a steel plate with the thickness of 2mm, and then the sample plate is baked for 30 minutes at 140 ℃, so that the coating does not crack or bubble, and has good adhesion to a substrate.
Example 2:
the raw materials comprise the following components in percentage by mass: 35 percent of quick-drying emulsion (with the solid content of 45 percent), 28.7 percent of common filler, 15 percent of heat-conducting filler, 15 percent of porous filler, 0.3 percent of polyacrylonitrile fiber, 3 percent of dispersant, 1.0 percent of wetting agent, 0.8 percent of anti-settling agent, 0.5 percent of pigment, 0.35 percent of thickening agent, 0.35 percent of defoaming agent and 0 percent of water;
wherein,
quick-drying emulsion: t isgIs 20 deg.C tertiary vinegar emulsion 15g, TgIs 10g of polyvinyl acetate emulsion at 50 DEG, TgIs a chlorine partial emulsion 10 at the temperature of-10 DEG Cg；
Filling: 18.7g of calcium carbonate with the particle size of 325 meshes and 10g of mica powder with the particle size of 100 meshes;
heat-conducting filler: 15g of heat conducting graphite with the particle size of 400 meshes;
0.3g of polyacrylonitrile fiber and 3mm of length;
porous filler: 15g of diatomaceous earth with porosity of 40% and particle size of 400 mesh;
750 g of dispersant Tego;
wetting agent air chemistry 104DPM 1.0 g;
0.8g of anti-settling agent fumed silica;
0.5g of pigment carbon black;
0g of water;
thickener BYK RD 0.35g
Antifoam agent T ego 8250.35 g
And (2) uniformly mixing the emulsions under high-speed stirring, sequentially adding a dispersing agent, a wetting agent, an anti-settling agent and a pigment, stirring at high speed for 10 minutes, adding a porous filler and other fillers, dispersing at high speed for 30 minutes, adding a thickening agent, stirring for 30 minutes, adding a defoaming agent, and then grinding by a conical mill to obtain the coating with the particle size of less than 100 micrometers, wherein the solid content is 77.9%.
The properties of the coating prepared in this example were: the coating is blade-coated or high-pressure sprayed on a steel plate with the thickness of 2mm, and then the sample plate is baked for 30 minutes at 140 ℃, so that the coating does not crack or bubble, and has good adhesion to a substrate.
Example 3:
the raw materials comprise the following components in percentage by mass: 30 percent of quick-drying emulsion (with the solid content of 50 percent), 43.5 percent of common filler, 10 percent of porous filler, 10 percent of heat-conducting filler, 0.3 percent of glass fiber, 3 percent of dispersant, 1.2 percent of wetting agent, 0.8 percent of anti-settling agent, 0.5 percent of pigment, 0.25 percent of thickening agent, 0.45 percent of defoaming agent and 0 percent of water;
wherein,
quick-drying emulsion: t isg15g of neoprene emulsion at 20 ℃ and 15g of waterborne epoxy resin;
common filler: 28.5g of wollastonite with the particle size of 400 meshes and 15g of mica powder with the particle size of 200 meshes;
porous filler: 5g of zeolite powder with the porosity of 42 percent and the particle size of 300 meshes, 8.8g of molecular sieve with the porosity of 48 percent and the particle size of 300 meshes;
the heat-conducting filler is: 10g of 400-mesh aluminum oxide;
0.3g of glass fiber and 0.3mm of length;
dispersant BYK 1913.0 g;
wetting agent Tego 2701.2 g;
0.8g of anti-settling agent bentonite;
0.5g of pigment carbon black;
0g of water;
thickener BYK RDS 0.45g
Antifoaming agent Tego 8100.25 g
Under high-speed dispersion, uniformly mixing the neoprene emulsion and the water-based epoxy resin, sequentially adding a dispersing agent, a wetting agent, an anti-settling agent and a pigment, stirring at a high speed for 10 minutes, adding a porous filler and other fillers, dispersing at a high speed for 30 minutes, adding a thickening agent, stirring for 30 minutes, then adding a defoaming agent, and grinding by a conical mill to obtain the coating with the particle size of less than 100 micrometers, wherein the solid content is 81.9%.
The properties of the coating prepared in this example were: the coating is blade-coated or high-pressure sprayed on a steel plate with the thickness of 2mm, and then the sample plate is baked for 30 minutes at 140 ℃, so that the coating does not crack or bubble, and has good adhesion to a substrate.
Example 4:
the raw materials comprise the following components in percentage by mass: 30 percent of quick-drying emulsion (with the solid content of 50 percent), 42.2 percent of common filler, 10 percent of porous filler, 10 percent of heat-conducting filler, 0.3 percent of glass fiber, 3 percent of dispersant, 1.2 percent of wetting agent, 0.8 percent of anti-settling agent, 0.5 percent of pigment and 2 percent of water;
wherein,
quick-drying emulsion: t isg15g of neoprene emulsion at 20 ℃ and 15g of waterborne epoxy resin;
common filler: 27.2g of wollastonite with the particle size of 400 meshes and 15g of mica powder with the particle size of 200 meshes;
porous filler: 5g of zeolite powder with the porosity of 42 percent and the particle size of 300 meshes, 8.8g of molecular sieve with the porosity of 48 percent and the particle size of 300 meshes;
the heat-conducting filler is: 10g of 400-mesh aluminum oxide;
0.3g of glass fiber and 0.3mm of length;
dispersant BYK 1913.0 g;
wetting agent Tego 2701.2 g;
0.8g of anti-settling agent bentonite;
0.5g of pigment carbon black;
2g of water;
under high-speed dispersion, uniformly mixing the neoprene emulsion and the water-based epoxy resin, sequentially adding a dispersing agent, a wetting agent, an anti-settling agent and a pigment, stirring at a high speed for 10 minutes, adding a porous filler and other fillers, dispersing at a high speed for 30 minutes, adding water, stirring for 30 minutes, and then grinding by a conical mill to obtain the coating with the particle size of less than 100 microns, wherein the solid content is 80.3%.
The properties of the coating prepared in this example were: the coating is blade-coated or high-pressure sprayed on a steel plate with the thickness of 2mm, and then the sample plate is baked for 30 minutes at 140 ℃, so that the coating does not crack or bubble, and has good adhesion to a substrate.
The results of the performance tests of comparative examples 1 to 3 and examples 1 to 4 are shown in Table 1.
TABLE 1 comparative examples 1-3 and examples 1-4 Performance
Note: adhesion was best on level 0 and worst on level 5.
The embodiments show that the high-temperature-bakeable water-based paint provided by the invention can be directly baked and dried at high temperature during thick coating, and has no problems of cracking, bubbling, reduced adhesive force and the like.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (5)
1. The high-temperature-bakeable water-based paint comprises the following components in percentage by mass:
the solid content of the quick-drying emulsion is 35-60% by mass;
the quick-drying emulsion is one or more of neoprene emulsion, butyronitrile emulsion, butylbenzene emulsion, styrene-acrylic emulsion, pure acrylic emulsion, vinyl acetate-acrylic emulsion, tertiary vinegar emulsion, polyvinyl acetate emulsion and chlorine partial emulsion;
the common filler is one or more of talcum powder, calcium carbonate, mica powder, titanium dioxide and silica micropowder;
the heat-conducting filler is one or more of aluminum nitride, boron nitride, silicon carbide, magnesium oxide, aluminum oxide, zinc oxide, silicon dioxide and carbon powder;
the porous filler is one or more of zeolite powder and a molecular sieve;
the anti-cracking fiber is one or more of polypropylene fiber, polyacrylonitrile fiber, carbon fiber and glass fiber.
2. The high-temperature-bakable water-based paint according to claim 1, which comprises the following components in percentage by mass:
3. the high-temperature bakeable aqueous coating according to claim 1, further comprising a non-quick-drying aqueous resin in the quick-drying emulsion, wherein the non-quick-drying aqueous resin is one or more of an aqueous alkyd resin, an aqueous epoxy resin, an aqueous polyurethane resin, an aqueous acrylic modified epoxy resin and an aqueous acrylic modified polyurethane resin.
4. The high-temperature bakeable aqueous coating according to claim 1, wherein the porosity of the porous filler is 30 to 90%.
5. The high-temperature bakeable aqueous coating according to claim 1 or 2, wherein the high-temperature bakeable aqueous coating has a solid content of 70% or more.
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| CN113861781A (en) * | 2021-10-18 | 2021-12-31 | 天津科瑞达涂料化工有限公司 | Super quick-drying and rapidly-packaged thick-coating type single-component water-based anticorrosive coating for cast pipe |
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| JPH0267704A (en) * | 1988-09-02 | 1990-03-07 | Sumitomo Bakelite Co Ltd | Insulated painting process |
| CN105419544B (en) * | 2015-12-31 | 2018-06-26 | 优链新材料科技（上海）有限公司 | A kind of aqueous damping coating and preparation method thereof |
| CN105602371A (en) * | 2016-02-02 | 2016-05-25 | 江苏同盟汽车零部件实业有限公司 | Method for preparing high-temperature baking type water-soluble damping coating for vehicles |
| CN107083120A (en) * | 2017-05-15 | 2017-08-22 | 吉林省吉泥环保科技有限公司 | A kind of coating with damping and long-acting decomposing formaldehyde |
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