CN116676041A - Preparation method and application of long-acting solvent-free easy-to-clean coating - Google Patents
Preparation method and application of long-acting solvent-free easy-to-clean coating Download PDFInfo
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- CN116676041A CN116676041A CN202310800558.7A CN202310800558A CN116676041A CN 116676041 A CN116676041 A CN 116676041A CN 202310800558 A CN202310800558 A CN 202310800558A CN 116676041 A CN116676041 A CN 116676041A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000006119 easy-to-clean coating Substances 0.000 title claims description 14
- 239000003973 paint Substances 0.000 claims abstract description 33
- 230000003670 easy-to-clean Effects 0.000 claims abstract description 17
- 238000005034 decoration Methods 0.000 claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000012423 maintenance Methods 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 238000010422 painting Methods 0.000 claims abstract description 4
- 239000011347 resin Substances 0.000 claims description 30
- 229920005989 resin Polymers 0.000 claims description 30
- 239000003795 chemical substances by application Substances 0.000 claims description 28
- 239000000839 emulsion Substances 0.000 claims description 27
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical class O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000004814 polyurethane Substances 0.000 claims description 17
- 229920002635 polyurethane Polymers 0.000 claims description 17
- 239000003085 diluting agent Substances 0.000 claims description 16
- 238000004140 cleaning Methods 0.000 claims description 14
- 239000002270 dispersing agent Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 10
- 239000000049 pigment Substances 0.000 claims description 10
- 239000000440 bentonite Substances 0.000 claims description 9
- 229910000278 bentonite Inorganic materials 0.000 claims description 9
- 229920001940 conductive polymer Polymers 0.000 claims description 9
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 9
- 239000002086 nanomaterial Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000012752 auxiliary agent Substances 0.000 claims description 6
- 239000007822 coupling agent Substances 0.000 claims description 6
- 239000013530 defoamer Substances 0.000 claims description 6
- 150000002191 fatty alcohols Chemical class 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000006254 rheological additive Substances 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- 239000004925 Acrylic resin Substances 0.000 claims description 3
- 229920000178 Acrylic resin Polymers 0.000 claims description 3
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 3
- 230000004913 activation Effects 0.000 claims description 3
- 239000013543 active substance Substances 0.000 claims description 3
- 125000000129 anionic group Chemical group 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical group C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 claims description 3
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 3
- 239000003995 emulsifying agent Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000005543 nano-size silicon particle Substances 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- 229920000767 polyaniline Polymers 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229920000128 polypyrrole Polymers 0.000 claims description 3
- 229920000123 polythiophene Polymers 0.000 claims description 3
- 239000011496 polyurethane foam Substances 0.000 claims description 3
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 8
- 239000002904 solvent Substances 0.000 description 8
- 239000012855 volatile organic compound Substances 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 231100000331 toxic Toxicity 0.000 description 4
- 230000002588 toxic effect Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 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
- 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
-
- 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
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- 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
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to a preparation method and application of a long-acting solvent-free easy-to-clean paint, which belongs to the technical field of internal and external painting of stations, aluminum veneers, metal curtain walls and decoration which is clean in surface and unsuitable for frequent maintenance or maintenance-free.
Description
Technical Field
The invention relates to the technical fields of station internal and external coating, aluminum veneers, metal curtain walls and decoration which are clean in surface and are not suitable for frequent maintenance or maintenance-free, in particular to a preparation method and application of a long-acting solvent-free easy-to-clean coating.
Background
With the rapid development of national economy and the expansion of the construction scale of infrastructure, the rapid development of the building industry is promoted, and meanwhile, the problem of protection coating aging of a plurality of building engineering projects has become an important subject in the building engineering industry. The variety and quality of the building material restrict the building and structural form and construction method, directly influence the safety reliability, durability and applicability (economy, applicability, beautiful appearance, energy conservation) of civil engineering and building engineering, the building coating gives the building matrix a brand new surface, on one hand, the building matrix can effectively improve and enhance the properties (corrosion resistance, wear resistance, fire resistance and decoration properties) of materials and products, on the other hand, the building matrix can protect and decorate with excellent properties, and at the same time, the service life is prolonged, resources and energy sources are saved, environmental pollution is reduced, and on the other hand, the building matrix material can be given special physical and chemical properties, so that the building matrix material is widely paid attention and paid at home and abroad.
The prior art has the following defects:
at present, the easy-to-clean paint is divided into water-based paint and solvent-based paint, wherein the water-based paint comprises the following components: the crosslinking density is not high, besides self-cleaning resin, a hydrophobic agent of water fluorine or silicon is added, and the self-cleaning long-acting property is not enough; solvent-based: the paint contains a certain amount of Volatile Organic Compounds (VOC), an additional diluent is needed during construction, the volume and the solid content of the paint are not high, the coating rate is lower compared with the type of solvent-free paint, a large amount of solvents, VOC and other toxic volatile substances are released in the production and use processes, toxic formaldehyde, volatile organic substances and the like are released, the air pollution is caused, the human body is healthy, the environment pollution is serious due to volatilization in the construction process, and the cost is high.
Disclosure of Invention
The invention aims to provide a preparation method and application of a long-acting solvent-free easy-to-clean coating, which are used for solving the problems that the prior easy-to-clean coating is classified into water-based and solvent-based, and the water-based: the crosslinking density is not high, besides self-cleaning resin, a hydrophobic agent of water fluorine or silicon is added, and the self-cleaning long-acting property is not enough; solvent-based: the paint contains a certain amount of Volatile Organic Compounds (VOC), an additional diluent is needed during construction, the volume and the solid content of the paint are not high, the coating rate is lower compared with the type of solvent-free paint, a large amount of solvents, VOC and other toxic volatile substances are released in the production and use processes, the toxic formaldehyde, the volatile organic compounds and the like are released, the air pollution is caused, the human body is healthy, the environment pollution is serious due to volatilization in the construction process, and the cost is high.
The technical scheme of the invention is as follows: the modified polyurethane foam adhesive comprises a component A and a component B, wherein the component A comprises polyurethane modified organosilicon easy-to-clean resin, pigment and filler, rheological auxiliary agent, solvent-free dispersing agent, 100% effective component defoamer, solvent-free leveling agent, drier, conductive polymer, low-surface-energy nano material, aqueous nano hydrophobe agent, aqueous fluorocarbon emulsion, aqueous silicone-acrylate emulsion, aqueous polyurethane emulsion and aqueous protective adhesive solution, and the component B comprises special matched curing agent, dispersing agent, coupling agent and modified bentonite pregel.
Further, 50-60 parts of polyurethane modified organosilicon easy-to-clean resin, 5-25 parts of pigment and filler, 0.5-1 part of rheological additive, 0.5-1 part of solvent-free dispersing agent, 0.1-0.5 part of 100% effective component defoamer, 0.1-0.8 part of solvent-free leveling agent, 0.5-2 parts of drier, 35-77 parts of conductive polymer, 22-64 parts of low-surface-energy nano material, 2-3 parts of modified bentonite pregel, 1-2 parts of water-based nano hydrophobe, 35-50 parts of water-based fluorocarbon emulsion, 5-10 parts of water-based silicone-acrylate emulsion, 5-10 parts of water-based polyurethane emulsion and 10-15 parts of water-based protective adhesive solution.
Further, the special matched curing agent comprises 10-30 parts of dispersing agent 0.3-1 part and coupling agent 0.3-1 part.
Further, the conductive polymer is at least one selected from polyaniline, polythiophene and polypyrrole, the low-surface-energy nanomaterial is at least one selected from silica sol, fluorosilicone resin and titanium dioxide sol, and the rheological aid comprises polyacrylate surface aid and/or organosilicon surface aid.
Further, the modified bentonite pregelatinized comprises bentonite, and resin and reactive diluent filled in the holes of the bentonite, wherein the resin is selected from any one or at least two of epoxy resin, polyurethane, acrylic resin and phenolic resin.
Further, the preparation method of the modified bentonite pregel comprises the following steps: mixing resin and reactive diluent, carrying out primary dispersing and stirring for 8-12min at the rotating speed of 1100-1300r/min, adding bentonite in the primary dispersing and stirring process, adjusting the vacuum degree by taking every-30 kPa to-10 kPa as a unit, and immediately maintaining the pressure after each adjustment until the vacuum degree reaches-101.325 kPa, carrying out secondary dispersing and stirring for 8-12min at the rotating speed of 1200-1600r/min, thereby obtaining the modified bentonite pregelatinized, wherein the reactive diluent is selected from reactive diluents with glycidyl ether groups.
Further, the aqueous nano-hydrophobe is composed of natural fatty alcohol, higher fatty alcohol, fluoromonomer, nano silicon dioxide, siloxane, an active agent, an emulsifying agent and deionized water, and the aqueous fluorocarbon emulsion is one of aqueous special fluororesin copolymerized anionic emulsion and aqueous fluoromonomer pure acrylic ester copolymer emulsion.
Further, the preparation method of the long-acting solvent-free easy-to-clean paint comprises the following steps:
step one: when the product is produced, the resin, pigment and filler and auxiliary agent are uniformly dispersed at high speed;
step two: grinding the materials with specific colors, and flushing a sand mill with resin after finishing grinding;
step three: the component A and the component B are mixed and stirred uniformly according to the proportion;
step four: and adding a curing agent and a catalyst into the mixture until the curing agent and the catalyst are completely dissolved, so as to obtain the easy-to-clean coating.
Further, the application mode suggests spraying, and the activation period (25 ℃) of the product is 4 hours, and after 4 hours, the viscosity can rise with time until the product is gelled.
Furthermore, the long-acting solvent-free easy-to-clean paint is applied to the technical fields of internal and external painting of stations, aluminum veneers, metal curtain walls and decoration which are clean in surface and are not suitable for frequent maintenance or maintenance-free.
The invention provides a preparation method and application of a long-acting solvent-free easy-to-clean paint through improvement, and compared with the prior art, the preparation method has the following improvement and advantages:
the main body of the invention is solvent-free polyurethane modified organic silicon resin, after the reaction with a curing agent, the invention has high mechanical property, high light transmittance, high adhesive force, high weather resistance, good acid resistance, high crosslinking density, good lotus leaf effect of a paint film, long self-cleaning resistance, compared with the traditional anti-corrosion finish paint, the invention has high weather resistance, low light loss rate, high and tough paint film hardness, long-term exposure in the atmosphere environment, high self-cleaning performance, compared with the traditional easy-cleaning paint, the paint itself has no solvent, low viscosity after the paint and the curing agent are mixed, no additional diluent can be added during construction, film thickness can be formed once, long-term self-cleaning performance is realized, and the invention is environment-friendly.
Detailed Description
The following detailed description of the present invention will clearly and fully describe the technical solutions of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a preparation method and application of a long-acting solvent-free easy-to-clean paint by improving the preparation method: the modified polyurethane foam comprises a component A and a component B, wherein the component A comprises polyurethane modified organosilicon easy-to-clean resin, pigment and filler, rheological additive, solvent-free dispersing agent, 100% effective component defoamer, solvent-free leveling agent, drier, conductive polymer, low-surface-energy nano material, aqueous nano hydrophobe, aqueous fluorocarbon emulsion, aqueous silicone-acrylate emulsion, aqueous polyurethane emulsion and aqueous protective adhesive solution, and the component B comprises special matched curing agent, dispersing agent, coupling agent and modified bentonite pregel.
50-60 parts of polyurethane modified organosilicon easy-cleaning resin, 5-25 parts of pigment and filler, 0.5-1 part of rheological additive, 0.5-1 part of solvent-free dispersing agent, 0.1-0.5 part of 100% effective component defoamer, 0.1-0.8 part of solvent-free leveling agent, 0.5-2 parts of drier, 35-77 parts of conductive polymer, 22-64 parts of low-surface-energy nano material, 2-3 parts of modified bentonite pregelatinized, 1-2 parts of water-based nano hydrophobe, 35-50 parts of water-based fluorocarbon emulsion, 5-10 parts of water-based silicone-acrylate emulsion, 5-10 parts of water-based polyurethane emulsion and 10-15 parts of water-based protective adhesive solution.
10-30 parts of special matched curing agent, 0.3-1 part of dispersing agent and 0.3-1 part of coupling agent.
The conductive polymer is at least one selected from polyaniline, polythiophene and polypyrrole, the low-surface-energy nano material is at least one selected from silica sol, fluorosilicone resin and titanium dioxide sol, and the rheological aid comprises polyacrylate surface aid and/or organosilicon surface aid.
The modified bentonite pregelatinized material comprises bentonite, resin filled in the holes of the bentonite and reactive diluent, wherein the resin is selected from any one or at least two of epoxy resin, polyurethane, acrylic resin and phenolic resin.
The preparation method of the modified bentonite pregel comprises the following steps: mixing resin and reactive diluent, performing primary dispersing and stirring at a rotating speed of 1100-1300r/min for 8-12min, adding bentonite in the primary dispersing and stirring process, adjusting vacuum degree by taking every-30 kPa to-10 kPa as a unit, and immediately maintaining pressure after each adjustment until the vacuum degree reaches-101.325 kPa, performing secondary dispersing and stirring at a rotating speed of 1200-1600r/min for 8-12min to obtain modified bentonite pregelatinized, wherein the reactive diluent is selected from reactive diluents with glycidyl ether groups.
The aqueous nano hydrophobe is an aqueous nano hydrophobe consisting of natural fatty alcohol, higher fatty alcohol, fluoromonomer, nano silicon dioxide, siloxane, an active agent, an emulsifying agent and deionized water, and the aqueous fluorocarbon emulsion is one of aqueous special fluororesin copolymerized anionic emulsion and aqueous fluoromonomer pure acrylic ester copolymer emulsion.
A preparation method of a long-acting solvent-free easy-to-clean paint comprises the following steps:
step one: when the product is produced, the resin, pigment and filler and auxiliary agent are uniformly dispersed at high speed;
step two: grinding the materials with specific colors, and flushing a sand mill with resin after finishing grinding;
step three: the component A and the component B are mixed and stirred uniformly according to the proportion;
step four: and adding a curing agent and a catalyst into the mixture until the curing agent and the catalyst are completely dissolved, so as to obtain the easy-to-clean coating.
The application mode suggests spraying, the activation period (25 ℃) of the product is 4 hours, and after 4 hours, the viscosity can rise with time until gelling.
The long-acting solvent-free easy-to-clean paint is applied to the technical fields of internal and external painting of stations, aluminum veneers, metal curtain walls and decoration which are clean in surface and are not suitable for frequent maintenance or maintenance-free.
When the product is produced, the resin, pigment and filler and auxiliary agent are dispersed uniformly at high speed, specific color is ground, after grinding, a sand mill is flushed by the resin, the component A and the component B are mixed and stirred uniformly according to the proportion, and the curing agent and the catalyst are added into the mixture until the curing agent and the catalyst are completely dissolved, so that the coating easy to clean is obtained.
The main body of the invention is solvent-free polyurethane modified organic silicon resin, after the reaction with a curing agent, the invention has high mechanical property, high light transmittance, high adhesive force, high weather resistance, good acid resistance, high crosslinking density, good lotus leaf effect of a paint film, long self-cleaning resistance, compared with the traditional anti-corrosion finish paint, the invention has high weather resistance, low light loss rate, high and tough paint film hardness, long-term exposure in the atmosphere environment, high self-cleaning performance, compared with the traditional easy-cleaning paint, the paint itself has no solvent, low viscosity after the paint and the curing agent are mixed, no additional diluent can be added during construction, film thickness can be formed once, long-term self-cleaning performance is realized, and the invention is environment-friendly.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A long-acting solvent-free easy-to-clean paint is characterized in that: the modified polyurethane foam adhesive comprises a component A and a component B, wherein the component A comprises polyurethane modified organosilicon easy-to-clean resin, pigment and filler, rheological auxiliary agent, solvent-free dispersing agent, 100% effective component defoamer, solvent-free leveling agent, drier, conductive polymer, low-surface-energy nano material, aqueous nano hydrophobe agent, aqueous fluorocarbon emulsion, aqueous silicone-acrylate emulsion, aqueous polyurethane emulsion and aqueous protective adhesive solution, and the component B comprises special matched curing agent, dispersing agent, coupling agent and modified bentonite pregel.
2. A long-acting solvent-free easy-to-clean coating according to claim 1, wherein: 50-60 parts of polyurethane modified organosilicon easy-cleaning resin, 5-25 parts of pigment and filler, 0.5-1 part of rheological additive, 0.5-1 part of solvent-free dispersing agent, 0.1-0.5 part of 100% effective component defoamer, 0.1-0.8 part of solvent-free leveling agent, 0.5-2 parts of drier, 35-77 parts of conductive polymer, 22-64 parts of low-surface-energy nano material, 2-3 parts of modified bentonite pregel, 1-2 parts of water-based nano hydrophobe, 35-50 parts of water-based fluorocarbon emulsion, 5-10 parts of water-based silicone-acrylic emulsion, 5-10 parts of water-based polyurethane emulsion and 10-15 parts of water-based protective adhesive solution.
3. A long-acting solvent-free easy-to-clean coating according to claim 1, wherein: 10-30 parts of special matched curing agent, 0.3-1 part of dispersing agent and 0.3-1 part of coupling agent.
4. A long-acting solvent-free easy-to-clean coating according to claim 1, wherein: the conductive polymer is at least one selected from polyaniline, polythiophene and polypyrrole, the low-surface-energy nanomaterial is at least one selected from silica sol, fluorosilicone resin and titania sol, and the rheological aid comprises polyacrylate surface aid and/or organosilicon surface aid.
5. A long-acting solvent-free easy-to-clean coating according to claim 1, wherein: the modified bentonite pregelatinization comprises bentonite, and resin and reactive diluent filled in holes of the bentonite, wherein the resin is selected from any one or at least two of epoxy resin, polyurethane, acrylic resin and phenolic resin.
6. A long-acting solvent-free easy-to-clean coating according to claim 5, wherein: the preparation method of the modified bentonite pregel comprises the following steps: mixing resin and reactive diluent, carrying out primary dispersing and stirring for 8-12min at the rotating speed of 1100-1300r/min, adding bentonite in the primary dispersing and stirring process, adjusting the vacuum degree by taking every-30 kPa to-10 kPa as a unit, and immediately maintaining the pressure after each adjustment until the vacuum degree reaches-101.325 kPa, carrying out secondary dispersing and stirring for 8-12min at the rotating speed of 1200-1600r/min, thereby obtaining the modified bentonite pregelatinized, wherein the reactive diluent is selected from reactive diluents with glycidyl ether groups.
7. A long-acting solvent-free easy-to-clean coating according to claim 1, wherein: the aqueous nano hydrophobe is composed of natural fatty alcohol, higher fatty alcohol, fluoromonomer, nano silicon dioxide, siloxane, an active agent, an emulsifying agent and deionized water, and the aqueous fluorocarbon emulsion is one of aqueous special fluororesin copolymerized anionic emulsion and aqueous fluoromonomer pure acrylic ester copolymer emulsion.
8. The method for preparing the long-acting solvent-free easy-to-clean paint according to claim 1, which is characterized in that: the method comprises the following steps:
step one: when the product is produced, the resin, pigment and filler and auxiliary agent are uniformly dispersed at high speed;
step two: grinding the materials with specific colors, and flushing a sand mill with resin after finishing grinding;
step three: the component A and the component B are mixed and stirred uniformly according to the proportion;
step four: and adding a curing agent and a catalyst into the mixture until the curing agent and the catalyst are completely dissolved, so as to obtain the easy-to-clean coating.
9. The method for preparing the long-acting solvent-free easy-to-clean paint as claimed in claim 8, wherein the method comprises the following steps: the application mode suggests spraying, the activation period (25 ℃) of the product is 4 hours, and after 4 hours, the viscosity can rise with time until gelling.
10. The long-acting solvent-free easy-to-clean paint as claimed in any one of claims 1-9 is applied to the technical fields of internal and external painting of stations, aluminum veneers, metal curtain walls and decoration which are clean in surface and are not suitable for frequent maintenance or maintenance-free.
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| CN202310800558.7A CN116676041A (en) | 2023-07-03 | 2023-07-03 | Preparation method and application of long-acting solvent-free easy-to-clean coating |
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| CN202310800558.7A CN116676041A (en) | 2023-07-03 | 2023-07-03 | Preparation method and application of long-acting solvent-free easy-to-clean coating |
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| CN104987832A (en) * | 2015-07-30 | 2015-10-21 | 广东美的厨房电器制造有限公司 | Easy-to-clean coating as well as preparation method and application of easy-to-clean coating |
| CN107312407A (en) * | 2017-08-07 | 2017-11-03 | 江苏理文化工有限公司 | A kind of long-acting self-cleaning coating and preparation method thereof |
| CN110511670A (en) * | 2019-09-07 | 2019-11-29 | 广东威凯表面技术有限公司 | Paint composite with non-resin easy to clean preparation with heat-insulated functions and the method for preparing heat-insulated filth-resisting thin film |
| CN110698930A (en) * | 2019-10-30 | 2020-01-17 | 石家庄市油漆厂 | Long-acting high-weather-resistance self-cleaning water-based multicolor paint and preparation method thereof |
| CN112876948A (en) * | 2021-01-18 | 2021-06-01 | 亚士创能科技（滁州）有限公司 | Solvent-free coating and preparation method and application thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104987832A (en) * | 2015-07-30 | 2015-10-21 | 广东美的厨房电器制造有限公司 | Easy-to-clean coating as well as preparation method and application of easy-to-clean coating |
| CN107312407A (en) * | 2017-08-07 | 2017-11-03 | 江苏理文化工有限公司 | A kind of long-acting self-cleaning coating and preparation method thereof |
| CN110511670A (en) * | 2019-09-07 | 2019-11-29 | 广东威凯表面技术有限公司 | Paint composite with non-resin easy to clean preparation with heat-insulated functions and the method for preparing heat-insulated filth-resisting thin film |
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