CN113652153A - Oily coating composition and preparation method and application thereof - Google Patents
Oily coating composition and preparation method and application thereof Download PDFInfo
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- CN113652153A CN113652153A CN202110959323.3A CN202110959323A CN113652153A CN 113652153 A CN113652153 A CN 113652153A CN 202110959323 A CN202110959323 A CN 202110959323A CN 113652153 A CN113652153 A CN 113652153A
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- 239000008199 coating composition Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 57
- 238000000576 coating method Methods 0.000 claims abstract description 56
- 239000011248 coating agent Substances 0.000 claims abstract description 53
- 239000003921 oil Substances 0.000 claims abstract description 47
- 229920000180 alkyd Polymers 0.000 claims abstract description 34
- 239000002270 dispersing agent Substances 0.000 claims abstract description 25
- 239000002904 solvent Substances 0.000 claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 18
- 239000003085 diluting agent Substances 0.000 claims abstract description 17
- 239000000654 additive Substances 0.000 claims abstract description 14
- 230000000996 additive effect Effects 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000013530 defoamer Substances 0.000 claims abstract description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 36
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 33
- 239000000843 powder Substances 0.000 claims description 32
- 239000003973 paint Substances 0.000 claims description 30
- 239000002518 antifoaming agent Substances 0.000 claims description 24
- 238000002156 mixing Methods 0.000 claims description 23
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 20
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 18
- VTOPGVIKQRMLJV-UHFFFAOYSA-N aminosilyl prop-2-enoate Chemical group C(C=C)(=O)O[SiH2]N VTOPGVIKQRMLJV-UHFFFAOYSA-N 0.000 claims description 15
- 239000012065 filter cake Substances 0.000 claims description 14
- 235000019441 ethanol Nutrition 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 12
- 239000000945 filler Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 11
- 239000000049 pigment Substances 0.000 claims description 11
- 229910052710 silicon Inorganic materials 0.000 claims description 11
- 239000010703 silicon Substances 0.000 claims description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000004408 titanium dioxide Substances 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000012752 auxiliary agent Substances 0.000 claims description 9
- 238000000713 high-energy ball milling Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- BXGYYDRIMBPOMN-UHFFFAOYSA-N 2-(hydroxymethoxy)ethoxymethanol Chemical compound OCOCCOCO BXGYYDRIMBPOMN-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- VGUWZCUCNQXGBU-UHFFFAOYSA-N 3-[(4-methylpiperazin-1-yl)methyl]-5-nitro-1h-indole Chemical compound C1CN(C)CCN1CC1=CNC2=CC=C([N+]([O-])=O)C=C12 VGUWZCUCNQXGBU-UHFFFAOYSA-N 0.000 claims description 4
- 239000000440 bentonite Substances 0.000 claims description 4
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- -1 cyclic acetal Chemical class 0.000 claims description 4
- OJURWUUOVGOHJZ-UHFFFAOYSA-N methyl 2-[(2-acetyloxyphenyl)methyl-[2-[(2-acetyloxyphenyl)methyl-(2-methoxy-2-oxoethyl)amino]ethyl]amino]acetate Chemical compound C=1C=CC=C(OC(C)=O)C=1CN(CC(=O)OC)CCN(CC(=O)OC)CC1=CC=CC=C1OC(C)=O OJURWUUOVGOHJZ-UHFFFAOYSA-N 0.000 claims description 4
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical class C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 claims description 3
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 3
- ATVJXMYDOSMEPO-UHFFFAOYSA-N 3-prop-2-enoxyprop-1-ene Chemical compound C=CCOCC=C ATVJXMYDOSMEPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims description 3
- 125000001931 aliphatic group Chemical group 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 229920000768 polyamine Polymers 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 6
- 230000001070 adhesive effect Effects 0.000 abstract description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 9
- 239000012855 volatile organic compound Substances 0.000 description 8
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000007792 addition Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910021485 fumed silica Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 2
- 150000004819 silanols Chemical class 0.000 description 2
- 238000000967 suction filtration Methods 0.000 description 2
- 238000001132 ultrasonic dispersion Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000000080 wetting agent Substances 0.000 description 2
- LTMRRSWNXVJMBA-UHFFFAOYSA-L 2,2-diethylpropanedioate Chemical compound CCC(CC)(C([O-])=O)C([O-])=O LTMRRSWNXVJMBA-UHFFFAOYSA-L 0.000 description 1
- UDSFAEKRVUSQDD-UHFFFAOYSA-N Dimethyl adipate Chemical compound COC(=O)CCCCC(=O)OC UDSFAEKRVUSQDD-UHFFFAOYSA-N 0.000 description 1
- MUXOBHXGJLMRAB-UHFFFAOYSA-N Dimethyl succinate Chemical compound COC(=O)CCC(=O)OC MUXOBHXGJLMRAB-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- OUWSNHWQZPEFEX-UHFFFAOYSA-N diethyl glutarate Chemical compound CCOC(=O)CCCC(=O)OCC OUWSNHWQZPEFEX-UHFFFAOYSA-N 0.000 description 1
- XTDYIOOONNVFMA-UHFFFAOYSA-N dimethyl pentanedioate Chemical compound COC(=O)CCCC(=O)OC XTDYIOOONNVFMA-UHFFFAOYSA-N 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000012844 infrared spectroscopy analysis Methods 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000001053 orange pigment Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000001054 red pigment Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/08—Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids
-
- 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
- C09D7/20—Diluents or solvents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses an oily coating composition and a preparation method and application thereof, belonging to the technical field of coatings. The coating comprises: at least one drying long oil alkyd resin as a film-forming material; nano-modified perovskite; at least one additive selected from the group consisting of a film forming aid, a dispersant, a defoamer, a reactive diluent, a leveling agent and a curing agent; and an auxiliary solvent. The alkyd resin coating not only maintains the basic performance of alkyd resin coating, has good hardness, high film-forming strength and good adhesive force, is not easy to peel, but also has good self-drying property, and meets the requirements of the current coating.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to an oily coating composition, and a preparation method and application thereof.
Background
The alkyd resin coating has the advantages of good comprehensive performance, low cost, convenient construction, wide application and the like, is widely applied to decoration and protection in the fields of bridge steel structure plants, net racks and engineering machinery, and has a great proportion in the total output of the coating industry. Patent document publication No. CN110591523A discloses a high flash point alkyd resin protective coating, which comprises the following components in parts by weight: 60-65 parts of alkyd resin; 15-20 parts of titanium dioxide; 5-15 parts of barium sulfate; 5-10 parts of alcohol ether solvent; 0.3-0.4 part of fumed silica; 0.2-0.4 part of wetting agent; 0.3-0.5 part of a dispersing agent; 0.7-1 part of a drier; 0.2-0.3 part of anti-skinning agent. The alcohol ether is used as a solvent, and because the solid content of the solvent type coating is relatively low, the proportion of Volatile Organic Compounds (VOC) generated in the production or use process is large, so that the pollution to the ecological environment is caused, the harm is brought to the human body, and the natural resources are wasted.
With the increasing strictness of national environmental protection policy and regulation, the collection of consumption tax and pollution discharge fee and the increasing awareness of environmental protection of people. How to reduce the emission of VOC of solvent-based coatings is a great problem to be solved by alkyd paints. The company also applies related patents, for example, the patent publication No. CN108300203A discloses a quick-drying acrylic acid modified alkyd resin coating, which is prepared by the following raw materials in percentage by mass: 55-65 parts of acrylic acid modified alkyd resin, 15-20 parts of titanium dioxide, 15-20 parts of precipitated barium sulfate, 3-5 parts of light calcium carbonate, 0.3-0.5 part of base material wetting agent, 0.3-0.5 part of fumed silica, 4-6 parts of solvent, 0.8-1.2 parts of special drier for white paint, 0.2-0.5 part of cobalt drier and 0.2-0.4 part of anti-skinning agent. No solvent is used in this patent, so that the VOC content can be reduced.
Although research in this field is continuously ongoing, a new idea to improve the VOC problem of oil-based coating compositions is urgently needed.
Disclosure of Invention
1. Problems to be solved
Aiming at the problem that the content of VOC is higher because the existing oil paint is mixed by using dimethylbenzene and aliphatic hydrocarbon as solvents, the invention aims to provide an oil paint composition and reduce the emission of VOC.
Another object of the present invention is to provide a method for preparing an oil-based paint composition, which has the advantages of orderly sequence of steps, simplicity and easy operation.
The invention also aims to provide the application of the oil-based paint composition in corrosion prevention, and the corrosion resistance is improved.
2. Technical scheme
In order to solve the problems, the technical scheme adopted by the invention is as follows:
an oil-based coating composition of the present invention comprises:
at least one drying long oil alkyd resin as a film-forming material;
nano-modified perovskite;
at least one additive selected from the group consisting of a film forming aid, a dispersant, a defoamer, a reactive diluent, a leveling agent and a curing agent;
and an auxiliary solvent.
In one possible embodiment of the invention, the nano modified perovskite is modified by KH-570 or acryloxy aminosilane, wherein the mass portion is 5-15.
In a possible embodiment of the invention, the paint further comprises a pigment filler, wherein the pigment filler is one or more of titanium dioxide, organic bentonite, heavy gold crystal powder and white carbon black, and the mass part of the pigment filler is 2-10 parts.
In one possible embodiment of the present invention, the film forming additive comprises glycol butyl ether glycolate, dibasic acid dimethyl ester film forming additive or dibasic acid diethyl ester film forming additive;
the dispersant is a self-fluxing dispersant;
the defoaming agent comprises an organic silicon defoaming agent, an inorganic silicon defoaming agent or a polyether defoaming agent;
the active diluent comprises synthetic drying oil, allyl ether, cyclic acetal or dicyclopentadiene derivative;
the leveling agent comprises an acrylic leveling agent or an organic silicon leveling agent;
the curing agent comprises aliphatic polyamine curing agent or aliphatic amine adduct curing agent.
In one possible embodiment of the present invention, the auxiliary solvent is absolute ethyl alcohol, dimethanol or ethylene glycol, wherein the mass portion is 1-2 portions.
In a possible embodiment of the present invention, the additive comprises the following components in parts by weight:
5-15 parts of a film forming auxiliary agent;
1-2 parts of a dispersing agent;
0.2-0.8 part of defoaming agent;
0.1-0.5 part of reactive diluent;
1-5 parts of a leveling agent;
0-20 parts of a curing agent.
The invention also provides a preparation method of the oil paint composition, which comprises the following steps:
step S101, mixing the nano modified perovskite compound, a film forming auxiliary agent, a dispersing agent, a defoaming agent, a flatting agent and an auxiliary solvent to obtain nano modified perovskite slurry;
step S102, mixing the nano modified perovskite slurry, long-oil alkyd resin and pigment and filler to obtain a prefabricated coating;
and step S103, mixing the prefabricated coating and a curing agent to obtain the oily coating composition.
In one possible embodiment of the present invention, the preparation process of the nano-modified perovskite composite comprises the following steps:
1) placing the perovskite particles into high-energy ball milling powder to obtain nano perovskite powder;
2) adding the nano perovskite powder into ethanol with the mass fraction of 90%, and simultaneously dropwise adding sodium hydroxide until the pH of the suspension is between 9 and 10, wherein the weight ratio of the nano perovskite powder is as follows: the mass of KH-570 or acryloxy aminosilane is 1: (0.08-0.1), dripping KH-570 or acryloxy aminosilane, ultrasonically dispersing for 30-45min, mechanically stirring and heating to 70-80 ℃, reacting for 1-2h at constant temperature, filtering, washing, drying a filter cake at 50-60 ℃ for 12-18h, and grinding the filter cake to obtain the nano modified perovskite.
The invention also provides application of the oil paint composition to steel structures, pipelines, bridges, doors and windows and fences.
3. Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
the oil paint composition of the invention not only maintains the basic performance of alkyd resin paint, has good hardness, high film-forming strength, good adhesive force and difficult peeling, but also has better self-drying property, thereby meeting the requirements of the current paint.
Drawings
FIG. 1 schematically shows a flow diagram for the preparation of a nano-modified perovskite;
FIG. 2 schematically shows an infrared spectroscopic analysis of a nano-modified perovskite.
Detailed Description
The invention is further described with reference to specific examples.
The long oil alkyd resin, perovskite, film forming aid, dispersant, defoamer, reactive diluent, leveling agent and curing agent used in the following examples were commercially available unless otherwise specified.
Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the invention are approximations, the numerical values set forth in the specific examples are reported as precisely as possible. Any numerical value, however, inherently contains certain errors necessarily resulting from the standard deviation found in their respective testing measurements.
The oil paint composition is applied to steel structures, pipelines, bridges, doors and windows and fences. The oil-based coating composition comprises: at least one long oil alkyd resin as a film-forming material; a nano-modified perovskite composite; at least one additive selected from the group consisting of a film forming aid, a dispersant, a defoamer, a reactive diluent, a leveling agent and a curing agent; and an auxiliary solvent.
(1) Long oil alkyd resins of film-forming substances
By "film-forming material" is meant a material that is capable of forming a continuous film on at least a horizontal surface of a substrate upon removal of any diluent or carrier present in the composition or upon curing. The long-oil alkyd resin is a film-forming substance, and can form a layered protective film after being dried on objects such as steel structures, pipelines, bridges, doors, windows, fences and the like; the oil or fatty acid content of the long-oil alkyd resin is 60-70%. The dry long-oil alkyd resin has good drying performance, good paint film elasticity, good light and color retention and weather resistance, and is selected from 20-30 parts by weight based on the alkyd resin.
(2) Nano-modified perovskite
As shown in fig. 1, the preparation process of the nano-modified perovskite described herein does not require any special requirement for the source of perovskite, and the perovskite may be from an iron and steel plant in Maanshan or an iron and steel plant in Sichuan.
1) Putting the perovskite particles into high-energy ball milling powder to obtain nano perovskite powder (the average particle size is controlled to be 15-30 nm); the BET test method is carried out on the nano perovskite powder, so that the surface porosity is higher;
2) adding the nano perovskite powder into ethanol with the mass fraction of 90%, and simultaneously dropwise adding sodium hydroxide until the pH of the suspension is between 9 and 10, wherein the weight ratio of the nano perovskite powder is as follows: the mass of KH-570 or acryloxy aminosilane is 1: (0.08-0.1), dripping KH-570 or acryloxy aminosilane, ultrasonically dispersing for 30-45min, mechanically stirring and heating to 70-80 ℃, reacting for 1-2h at constant temperature, filtering, washing, drying a filter cake at 50-60 ℃ for 12-18h, and grinding the filter cake to obtain the nano modified perovskite.
Performing infrared test spectral analysis on the obtained nano modified perovskite, comparing infrared spectrums of the silane coupling agent KH-570 or the acryloxy aminosilane and the nano perovskite before and after modification, and testing after modification as shown in figure 2: 1600cm-1 has a strong absorption peak, 1670cm-1 has a shoulder peak, an absorption peak at 2235cm-1, two absorption peaks at 1750cm and 1835 cm. Through test comparison, the hydroxyl adsorbed on the surface of the nano perovskite is partially involved in the grafting reaction, so that KH-570 or acryloxy aminosilane is grafted on the surface of the nano perovskite particles.
It should be noted that, the nano perovskite is an inorganic substance, the surface has a large number of pores and has a large surface energy, so that the particles are easy to accumulate into aggregates, the dispersibility in the coating composition is poor, and the nano perovskite can be settled after being placed for a period of time, so that the nano perovskite is very unfavorable for the storage and the use of the coating. The inventor of the invention discovers through research that nano perovskite is adsorbed or reacted on the surface of perovskite by using KH-570 or acryloxy amino silane (which can be expressed by a general formula as Y-R-SiX3, wherein X and Y have different reaction characteristics, X is a group capable of performing hydrolysis reaction to generate silicon hydroxyl (Si-OH), and Y reacts with polymer to improve the reactivity and compatibility of silane and polymer), so that perovskite is modified, the perovskite has better dispersibility in paint, and the hardness, adhesive force, water resistance and acid resistance of paint are improved. The possible reasons for the analysis are: on one hand, the perovskite has high surface porosity and positive charge, can adsorb ionized free hydroxyl in a part of water, so that a large number of hydroxyl are unevenly distributed on the surface of the perovskite, and on the other hand, the physical characteristics of the perovskite have common characteristics with glass, such as the surface has hydroxyl; under alkaline conditions, KH-570 or acryloxy aminosilane is hydrolyzed with 3X groups connected with silicon in ethanol to generate corresponding silanol; silanol is condensed into oligomer, the oligomer and hydroxyl form covalent bond, meanwhile, R group reacts with organism to form bond or is physically bonded by Van der Waals attraction, and finally the nano particles and the organic resin are connected together at the interface.
In addition, the inventor also finds in experimental processes that, when the oil coating is brushed on the surface of a metal substrate, especially in the presence of sunlight, the electric charge on the surface of the nano modified perovskite is transferred to break the balance of the electric charge, the adsorption force between the KH-570 or the acryloxy aminosilane and the perovskite is reduced, so that a small part of the oligomer branch ends condensed among silanols is vacant, and the part of the oligomer branch ends condensed among silanols can adsorb moisture entering a coating film layer in the air, so that the contact between the moisture and the metal surface is reduced, the electric corrosion of the surface of the metal substrate is reduced, and the corrosion of the metal substrate is effectively avoided. In the invention, the optimal mass part of the nano modified perovskite is 5-15 parts.
(3) Auxiliary solvent
In order to reduce VOC emission, the traditional coating taking dimethylbenzene and aliphatic hydrocarbon as solvents is changed, the auxiliary solvent in the coating is absolute ethyl alcohol or dimethanol or ethylene glycol, alcohols have hydrophilic hydroxyl groups and organic properties, and can be dissolved with long-oil alkyd resin, but the absolute ethyl alcohol or the dimethanol or the ethylene glycol is easy to volatilize, so that the coating is used in a small amount of 1-2 parts by mass. On one hand, absolute ethyl alcohol or dimethanol or ethylene glycol all have hydroxyl groups, and the hydroxyl groups are used as a regulator at the initial stage of mixing to increase the hydroxyl content in the system, so that the effect of regulating and balancing KH-570 or acryloxy aminosilane adsorbed on the surface of the nano modified perovskite can be achieved, and on the other hand, in practice, the fact that even though the absolute ethyl alcohol or dimethanol or ethylene glycol volatilizes, the whole oily coating system is always in a balanced state and is well dispersed is found, so that the physical properties of the oily coating composition are not influenced, and the normal use of the oily coating composition is not influenced.
(4) Pigment and filler
The pigment and filler of the invention is titanium dioxide, organic bentonite, heavy gold crystal powder (barium sulfate) and white carbon black. The average particle size of the titanium dioxide is preferably 10-200 nm. In the invention, the titanium dioxide is used for improving the physical and chemical properties of the coating and enhancing the chemical stability, so that the covering power, the color reducing power, the corrosion resistance, the light resistance and the weather resistance are improved, and the mechanical strength and the adhesive force of a paint film are enhanced. In the invention, the optimal mass portion of the pigment and the filler is 2-10.
(5) Film forming aid
The film forming assistant comprises glycol butyl ether alcohol ester, dibasic acid dimethyl ester film forming assistant or dibasic acid diethyl ester film forming assistant. The dibasic acid dimethyl ester film-forming auxiliary agent preferably comprises at least one of dimethyl adipate, dimethyl succinate and dimethyl glutarate; the dibasic acid diethyl ester film-forming assistant preferably comprises at least one of diethyl malonate and diethyl glutarate. In the invention, the film-forming assistant can promote the plastic flow and elastic deformation of the macromolecular compound, improve the coalescence performance and enable the coating to form a film in a wider construction temperature range. In the invention, the optimal mass portion of the film-forming additive is 5-15.
(6) Dispersing agent
The dispersant of the invention is a self-fluxing dispersant; preferably a dispersant of the type BYK101, BYK161 or BYK163 from Bick, Germany, or a dispersant of the type Efka5044 from Effa. In the invention, the optimal mass part of the dispersant is 1-2 parts.
(7) Defoaming agent
The defoaming agent comprises an organic silicon defoaming agent, an inorganic silicon defoaming agent or a polyether defoaming agent; in the invention, the defoaming agent leads the thin layer to crack through the reduction of surface tension or forms a monomolecular film, thus leading the adhesion to be reduced and leading the thin layer to crack easily, thereby playing the roles of defoaming and inhibiting foam. In the invention, the optimal mass portion of the defoaming agent is 0.2-0.8.
(8) Reactive diluent
The reactive diluent of the present invention comprises synthetic drying oil, allyl ether, cyclic acetal or dicyclopentadiene derivative. The reactive diluent is miscible with the alkyd resin to reduce the viscosity of the coating system; in the curing process, the alkyd resin can participate in the curing reaction of the alkyd resin, becomes a part of the cured alkyd resin, and has the advantage of environmental friendliness. When the viscosity of the system is found to be high in the mixing process of step S102, the reactive diluent can be added, and in the present invention, the optimal mass portion of the reactive diluent is 0.1 to 0.5.
(9) Leveling agent
The leveling agent comprises an acrylic leveling agent or an organic silicon leveling agent; in the present invention, the leveling agent helps to obtain a flat, smooth, uniform coating film. In the invention, the leveling agent can promote the flowing and leveling of the coating film, does not influence the interlayer adhesion of the coating film, and has the defoaming effect. In the invention, the optimal mass part of the leveling agent is 1-5 parts.
(10) Curing agent
The curing agent of the present invention includes an aliphatic polyamine-based curing agent or an aliphatic amine adduct-based curing agent. The addition mass fraction of the curing agent is 0-20 parts, and the long-oil alkyd resin has good curing performance and can be cured without adding the curing agent; also, the addition of a curing agent is considered, and the optimum amount is 20 parts. In the invention, the curing agent has good miscibility with the alkyd resin, and the cured alkyd resin has excellent weather resistance.
Example 1
The method for producing the oil-based paint composition of this example includes the steps of:
mixing 5 parts of nano modified perovskite, 5 parts of film forming additive, 1 part of dispersing agent, 0.2 part of defoaming agent, 1 part of flatting agent and 1 part of absolute ethyl alcohol to obtain nano modified perovskite slurry;
mixing the nano modified perovskite slurry, 30 parts of long-oil alkyd resin and 5 parts of titanium dioxide to obtain a prefabricated coating;
and mixing the pre-coating with 2 parts of a curing agent to obtain the oily coating composition.
Wherein: the preparation process of the nano modified perovskite comprises the following steps:
1) the perovskite particles are placed in high-energy ball milling powder (such as model SPEX3000 or Germany Pulverisette series or model 2MZS-3) to obtain nano perovskite powder, and meanwhile, the activity of the perovskite can be improved through the high-energy ball milling;
2) adding the nano perovskite powder into ethanol, simultaneously dropwise adding sodium hydroxide until the pH of the suspension is 9, and adding the sodium hydroxide according to the weight ratio of the nano perovskite powder: KH-570 mass is 1: 0.1, dripping KH-570, performing ultrasonic dispersion for 30min, mechanically stirring, heating to 80 ℃, reacting at constant temperature for 1h, performing suction filtration, washing, drying a filter cake at 60 ℃ for 12h, and grinding the filter cake to obtain the nano modified perovskite.
The coating obtained by the embodiment is coated on a sample plate, the whole surface of the coating is white, and the appearance of the coating is smooth.
Example 2
The method for producing the oil-based paint composition of this example includes the steps of:
mixing 15 parts of nano modified perovskite compound, 8 parts of film forming additive, 2 parts of dispersing agent, 0.5 part of defoaming agent, 2 parts of flatting agent and 2 parts of anhydrous glycol to obtain nano modified perovskite slurry;
mixing the nano modified perovskite slurry, 20 parts of long-oil alkyd resin and 8 parts of organic bentonite (with red pigment added) to obtain a prefabricated coating;
and mixing the pre-coating with 1 part of a curing agent to obtain the oily coating composition.
Wherein: the preparation process of the nano modified perovskite compound comprises the following steps:
1) placing the perovskite particles into high-energy ball milling powder to obtain nano perovskite powder;
2) adding the nano perovskite powder into ethanol, simultaneously dropwise adding sodium hydroxide until the pH of the suspension is 9, and adding the sodium hydroxide according to the weight ratio of the nano perovskite powder: mass of acryloxyaminosilane 1: 0.1, dropping acryloxy aminosilane, ultrasonically dispersing for 45min, mechanically stirring, heating to 80 ℃, reacting for 2h at constant temperature, filtering, washing, drying the filter cake for 18h at 50 ℃, and grinding the filter cake to obtain the nano modified perovskite.
The coating obtained by the embodiment is coated on a sample plate, the whole surface of the coating is bright red, and the appearance is smooth.
Example 3
The method for producing the oil-based paint composition of this example includes the steps of:
mixing 10 parts of nano modified perovskite compound, 10 parts of film forming additive, 1 part of dispersing agent, 0.8 part of defoaming agent, 3 parts of flatting agent and 1 part of absolute ethyl alcohol to obtain nano modified perovskite slurry;
mixing the nano modified perovskite slurry, 25 parts of long-oil alkyd resin and 10 parts of barite powder (added with orange pigment) to obtain a prefabricated coating;
and mixing the pre-coating and a curing agent to obtain the oily coating composition.
Wherein: as shown in fig. 1, the preparation process of the nano-modified perovskite composite comprises the following steps:
1) placing the perovskite particles into high-energy ball milling powder to obtain nano perovskite powder;
2) adding the nano perovskite powder into ethanol, simultaneously dropwise adding sodium hydroxide until the pH of the suspension is 10, and adding the sodium hydroxide into the suspension according to the weight ratio of the nano perovskite powder: KH-570 mass is 1: 0.08, dripping KH-570, ultrasonically dispersing for 30min, mechanically stirring, heating to 80 ℃, reacting for 1h at constant temperature, filtering, washing, drying a filter cake at 60 ℃ for 12h, and grinding the filter cake to obtain the nano modified perovskite.
The coating obtained by the embodiment is coated on a sample plate, the whole surface of the sample plate is orange, and the appearance of the sample plate is smooth.
Example 4
The method for producing the oil-based paint composition of this example includes the steps of:
mixing 15 parts of nano modified perovskite, 5 parts of film forming additive, 1 part of dispersing agent, 0.2 part of defoaming agent, 1 part of flatting agent and 1 part of absolute ethyl alcohol to obtain nano modified perovskite slurry;
mixing the nano modified perovskite slurry, 30 parts of long-oil alkyd resin and 10 parts of titanium dioxide to obtain a prefabricated coating; the viscosity of the coating is found to be relatively high through detection, and on the basis, 0.2 part of reactive diluent is added to reduce the viscosity of the system;
and mixing the pre-coating with 2 parts of a curing agent to obtain the oily coating composition.
Wherein: the preparation process of the nano modified perovskite comprises the following steps:
1) the perovskite particles are placed in high-energy ball milling powder (such as model SPEX3000 or Germany Pulverisette series or model 2MZS-3) to obtain nano perovskite powder, and meanwhile, the activity of the perovskite can be improved through the high-energy ball milling;
2) adding the nano perovskite powder into ethanol, simultaneously dropwise adding sodium hydroxide until the pH of the suspension is 9, and adding the sodium hydroxide according to the weight ratio of the nano perovskite powder: KH-570 mass is 1: 0.1, dripping KH-570, performing ultrasonic dispersion for 30min, mechanically stirring, heating to 80 ℃, reacting at constant temperature for 1h, performing suction filtration, washing, drying a filter cake at 60 ℃ for 12h, and grinding the filter cake to obtain the nano modified perovskite.
The coating obtained by the embodiment is coated on a sample plate, the whole surface of the coating is white, and the appearance of the coating is smooth.
Comparative example 1
This comparative example is essentially the same as example 1 except that the nano-modified perovskite was not included.
Mixing a film-forming auxiliary agent, a dispersing agent, a defoaming agent, a flatting agent and absolute ethyl alcohol, and mixing long-oil alkyd resin and titanium dioxide to obtain a prefabricated coating; and mixing the prefabricated coating and a curing agent to obtain the coating.
When the coating obtained by the comparative example is coated on a sample plate, the whole surface is white, the appearance is relatively smooth, and the coating has partial peeling and poor adhesive force.
In addition, the adhesion test was performed on the brush boards of examples 1 to 4, and a test piece was used in which a cured coating film was formed on a metal board base material by applying an aqueous eco-anticorrosive coating composition to the metal board base material by air-jet coating and drying (100 ℃ C.. times.10 minutes). Then, the test specimen was examined by the cross-cut method: holding a scribing grid instrument by hand, uniformly applying force on the surface of the dried paint film, and completely scribing the paint film to the surface of a substrate to form a grid pattern; the brush is used for slightly brushing the brush along the diagonal line for a plurality of times, and the cutting edge of the brush plate coating of the embodiment 1-4 is smooth and has no shedding according to the coating stripping result, thereby reaching the adhesive force 0 grade standard and meeting the requirements of the national relevant standards.
The coating of the invention not only needs to meet the performance requirements, but also needs to meet the requirements of the national standard (HG/T4759-.
The above description is a more detailed description of the present invention with reference to specific preferred embodiments, and it is not intended to limit the present invention to the specific embodiments described above. It will be apparent to those skilled in the art that various modifications, additions, substitutions, and the like can be made without departing from the spirit of the invention.
Claims (10)
1. An oil-based coating composition, characterized in that it comprises:
at least one drying long oil alkyd resin as a film-forming material;
nano-modified perovskite;
at least one additive selected from the group consisting of a film forming aid, a dispersant, a defoamer, a reactive diluent, a leveling agent and a curing agent;
and an auxiliary solvent.
2. The oil-based paint composition according to claim 1, wherein the nano-modified perovskite is modified with KH-570 or acryloxy aminosilane, wherein the mass fraction is 5-15 parts.
3. The oil-based paint composition according to claim 2, further comprising a pigment filler, wherein the pigment filler is one or more of titanium dioxide, organic bentonite, heavy gold crystal powder and white carbon black, and the mass fraction of the pigment filler is 2-10 parts.
4. The oil-based coating composition according to claim 3,
the film-forming auxiliary agent comprises glycol butyl ether alcohol ester, dibasic acid dimethyl ester film-forming auxiliary agent or dibasic acid diethyl ester film-forming auxiliary agent;
the dispersant is a self-fluxing dispersant;
the defoaming agent comprises an organic silicon defoaming agent, an inorganic silicon defoaming agent or a polyether defoaming agent;
the active diluent comprises synthetic drying oil, allyl ether, cyclic acetal or dicyclopentadiene derivative;
the leveling agent comprises an acrylic leveling agent or an organic silicon leveling agent;
the curing agent comprises aliphatic polyamine curing agent or aliphatic amine adduct curing agent.
5. The oil-based paint composition according to claim 4, wherein the auxiliary solvent is absolute ethyl alcohol, dimethanol or ethylene glycol, and the mass part of the auxiliary solvent is 1 to 2 parts.
6. The oil-based paint composition according to claim 5, wherein the additive comprises the following components in parts by mass:
5-15 parts of a film forming auxiliary agent;
1-2 parts of a dispersing agent;
0.2-0.8 part of defoaming agent;
0.1-0.5 part of reactive diluent;
1-5 parts of a leveling agent;
0-20 parts of a curing agent.
7. A method for producing an oil-based paint composition, characterized by comprising the steps of:
step S101, mixing the nano modified perovskite compound, a film forming auxiliary agent, a dispersing agent, a defoaming agent, a flatting agent and an auxiliary solvent to obtain nano modified perovskite slurry;
step S102, mixing the nano modified perovskite slurry, long-oil alkyd resin and pigment and filler to obtain a prefabricated coating;
and step S103, mixing the prefabricated coating and a curing agent to obtain the oily coating composition.
8. The method for preparing an oil based coating composition according to claim 7, wherein the process for preparing the nano-modified perovskite complex comprises the steps of:
1) placing the perovskite particles into high-energy ball milling powder to obtain nano perovskite powder;
2) adding the nano perovskite powder into ethanol with the mass fraction of 90%, and simultaneously dropwise adding sodium hydroxide until the pH of the suspension is between 9 and 10, wherein the weight ratio of the nano perovskite powder is as follows: the mass of KH-570 or acryloxy aminosilane is 1: (0.08-0.1), dripping KH-570 or acryloxy aminosilane, ultrasonically dispersing for 30-45min, mechanically stirring and heating to 70-80 ℃, reacting for 1-2h at constant temperature, filtering, washing, drying a filter cake at 50-60 ℃ for 12-18h, and grinding the filter cake to obtain the nano modified perovskite.
9. The method for producing an oil-based paint composition according to claim 7, wherein in the step S102, a reactive diluent is added to a pre-paint system.
10. Use of the oily coating composition according to any one of claims 1 to 6 in steel structures, pipes, pipelines, bridges, windows and doors, fences.
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| CN114479743A (en) * | 2022-03-07 | 2022-05-13 | 上海回天新材料有限公司 | Reactive polyurethane hot melt adhesive for TWS earphone bonding and preparation method thereof |
| CN117966073A (en) * | 2024-02-04 | 2024-05-03 | 中机凯博表面技术江苏有限公司 | Self-sealing wear-resistant coating and preparation method thereof |
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Application publication date: 20211116 |