CN114806245A - Nano modified anticorrosive paint and preparation method thereof - Google Patents
Nano modified anticorrosive paint and preparation method thereof Download PDFInfo
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- CN114806245A CN114806245A CN202210503321.8A CN202210503321A CN114806245A CN 114806245 A CN114806245 A CN 114806245A CN 202210503321 A CN202210503321 A CN 202210503321A CN 114806245 A CN114806245 A CN 114806245A
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- 239000003973 paint Substances 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims abstract description 34
- 238000002156 mixing Methods 0.000 claims abstract description 69
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000003063 flame retardant Substances 0.000 claims abstract description 42
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003822 epoxy resin Substances 0.000 claims abstract description 18
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 18
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 239000004814 polyurethane Substances 0.000 claims abstract description 15
- 229920002635 polyurethane Polymers 0.000 claims abstract description 15
- 230000002195 synergetic effect Effects 0.000 claims abstract description 15
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004593 Epoxy Substances 0.000 claims abstract description 9
- 239000004841 bisphenol A epoxy resin Substances 0.000 claims abstract description 9
- 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 abstract description 9
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 9
- 239000000049 pigment Substances 0.000 claims abstract description 7
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 claims abstract description 6
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims abstract description 6
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims abstract description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 54
- 238000006243 chemical reaction Methods 0.000 claims description 50
- 238000003756 stirring Methods 0.000 claims description 45
- 239000000463 material Substances 0.000 claims description 43
- 239000000843 powder Substances 0.000 claims description 36
- 239000007787 solid Substances 0.000 claims description 35
- 238000001035 drying Methods 0.000 claims description 26
- 238000004321 preservation Methods 0.000 claims description 25
- 238000005406 washing Methods 0.000 claims description 20
- 239000007864 aqueous solution Substances 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 19
- 235000019441 ethanol Nutrition 0.000 claims description 16
- 239000000243 solution Substances 0.000 claims description 16
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 14
- 239000011259 mixed solution Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000004005 microsphere Substances 0.000 claims description 12
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 claims description 12
- FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 claims description 12
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 11
- 239000000376 reactant Substances 0.000 claims description 11
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 10
- 239000006185 dispersion Substances 0.000 claims description 10
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 9
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 9
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 9
- 241001122767 Theaceae Species 0.000 claims description 8
- 150000008442 polyphenolic compounds Chemical class 0.000 claims description 8
- 235000013824 polyphenols Nutrition 0.000 claims description 8
- 239000011343 solid material Substances 0.000 claims description 8
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 claims description 7
- 239000012046 mixed solvent Substances 0.000 claims description 7
- 229940054441 o-phthalaldehyde Drugs 0.000 claims description 7
- ZWLUXSQADUDCSB-UHFFFAOYSA-N phthalaldehyde Chemical compound O=CC1=CC=CC=C1C=O ZWLUXSQADUDCSB-UHFFFAOYSA-N 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 claims description 6
- 230000004224 protection Effects 0.000 claims description 6
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims description 6
- MTEZSDOQASFMDI-UHFFFAOYSA-N 1-trimethoxysilylpropan-1-ol Chemical compound CCC(O)[Si](OC)(OC)OC MTEZSDOQASFMDI-UHFFFAOYSA-N 0.000 claims description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 5
- 230000002745 absorbent Effects 0.000 claims description 5
- 239000002250 absorbent Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 claims description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 4
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 4
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 4
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 4
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 4
- PLKATZNSTYDYJW-UHFFFAOYSA-N azane silver Chemical compound N.[Ag] PLKATZNSTYDYJW-UHFFFAOYSA-N 0.000 claims description 4
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims description 4
- 239000008103 glucose Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- LFSYUSUFCBOHGU-UHFFFAOYSA-N 1-isocyanato-2-[(4-isocyanatophenyl)methyl]benzene Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=CC=C1N=C=O LFSYUSUFCBOHGU-UHFFFAOYSA-N 0.000 claims description 3
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 3
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 3
- ODWXUNBKCRECNW-UHFFFAOYSA-M bromocopper(1+) Chemical compound Br[Cu+] ODWXUNBKCRECNW-UHFFFAOYSA-M 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000004848 polyfunctional curative Substances 0.000 claims description 3
- -1 polytrimethylene terephthalate Polymers 0.000 claims description 3
- 229920002215 polytrimethylene terephthalate Polymers 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 3
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 238000007598 dipping method Methods 0.000 claims description 2
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 claims description 2
- MOUPNEIJQCETIW-UHFFFAOYSA-N lead chromate Chemical compound [Pb+2].[O-][Cr]([O-])(=O)=O MOUPNEIJQCETIW-UHFFFAOYSA-N 0.000 claims description 2
- 238000000576 coating method Methods 0.000 abstract description 33
- 239000011248 coating agent Substances 0.000 abstract description 28
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 20
- 230000006750 UV protection Effects 0.000 abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 7
- 230000032683 aging Effects 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000005543 nano-size silicon particle Substances 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 2
- 235000015112 vegetable and seed oil Nutrition 0.000 description 2
- 239000008158 vegetable oil Substances 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000007590 electrostatic spraying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010517 secondary reaction Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/48—Stabilisers against degradation by oxygen, light or heat
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Plant Pathology (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to the technical field of paint production, in particular to a nano modified anticorrosive paint and a preparation method thereof; the anticorrosive paint comprises a component A and a component B in a weight ratio of 6-8: 1, mixing; the component A comprises the following raw materials in parts by weight: 25-60 parts of polyurethane modified epoxy resin, 70-130 parts of bisphenol A epoxy resin, 15-100 parts of 2-oxobutane, 2-5 parts of polyoxyethylene polyoxypropylene ether, 5-9 parts of a high-efficiency antibacterial agent, 3-7 parts of a synergistic flame retardant, 3-6 parts of a pigment, 2-4 parts of lithopone, 3-5 parts of talcum powder, 2-4 parts of titanium dioxide, 2-5 parts of a fluorocarbon modified flatting agent and 3-6 parts of propylene glycol methyl ether acetate; the component B comprises 6-22 parts by weight of maleic anhydride and 2-6 parts by weight of T-99 multifunctional epoxy curing agent; the prepared coating has good antibacterial property, flame retardant property and ultraviolet resistance, the service life of the coating is prolonged, and the quality of the coating is guaranteed.
Description
Technical Field
The invention relates to the technical field of paint production, in particular to a nano modified anticorrosive paint and a preparation method thereof.
Background
Coatings are a generic term for a class of liquid or solid materials that can be applied to the surface of an object to form a solid film having protective, decorative or special properties (e.g., insulation, corrosion protection, signage, etc.). Since the early coatings mostly used vegetable oils as the main raw material, they were also called paints. Synthetic resins have now replaced vegetable oils and are known as coatings. The coating is not liquid, and powder coating is a large category of coating. The coating comprises paint, water paint and powder coating. Powder coating, used for electrostatic spraying: the surface treatment process can protect the surface of the product better, so that the product is beautiful, bright in color and more resistant to corrosion.
At present, although the commercially available coating product has certain protection and decoration effects, the defects of the product can be covered, and the value of the product is improved. However, the service life of the product is relatively shortened due to the poor antibacterial performance and aging resistance of the product. Moreover, the antibacterial, ultraviolet aging resistant and flame retardant property cannot be achieved, so that the comprehensive competitiveness of the antibacterial, ultraviolet aging resistant and flame retardant fabric in the market is weak, and the sales volume of the antibacterial, ultraviolet aging resistant and flame retardant fabric is influenced to a certain extent.
Therefore, the invention provides a nano modified anticorrosive paint and a preparation method thereof, which are used for solving the technical problems put forward last time!
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the nano modified anticorrosive paint and the preparation method thereof, and the prepared paint not only has good antibacterial performance, but also has good flame retardant performance and ultraviolet resistance, so that the service life of the paint is effectively prolonged, and the quality of the paint is also ensured.
In order to achieve the purpose, the invention provides the following technical scheme:
the nano modified anticorrosive paint is prepared from a component A and a component B in a weight ratio of 6-8: 1, mixing;
the component A comprises the following raw materials in parts by weight: 25-60 parts of polyurethane modified epoxy resin, 70-130 parts of bisphenol A epoxy resin, 15-100 parts of 2-oxobutane, 2-5 parts of polyoxyethylene polyoxypropylene ether, 5-9 parts of a high-efficiency antibacterial agent, 3-7 parts of a synergistic flame retardant, 3-6 parts of a pigment, 2-4 parts of lithopone, 3-5 parts of talcum powder, 2-4 parts of titanium dioxide, 2-5 parts of a fluorocarbon modified flatting agent and 3-6 parts of propylene glycol methyl ether acetate;
the component B comprises, by weight, 6-22 parts of maleic anhydride and 2-6 parts of T-99 multifunctional epoxy curing agent.
Furthermore, the preparation method of the polyurethane modified epoxy resin comprises the following steps: according to the following steps: 1.2, mixing polytrimethylene terephthalate glycol with the molecular weight of 10000 and 2, 4' -diphenylmethane diisocyanate according to the molar ratio, then adding stannous octoate with the mass of 0.1-0.15% of the mixed material liquid, mixing, stirring and reacting for 3-4 h; then reacting the obtained product component with epoxy resin E44 with the mass being 3-8 times of that of the product component for 3-5 hours; and after the reaction is finished, obtaining the polyurethane modified epoxy resin.
Further, the preparation method of the high-efficiency antibacterial agent comprises the following steps:
step one, putting solid micro powder into an absolute ethyl alcohol water solution with the concentration of 60-75% according to the solid-to-liquid ratio of 0.01-0.015 g/mL, adding 3-aminopropyltriethoxysilane with the mass of 0.8-1.5 times of the solid micro powder after uniformly mixing and stirring, and carrying out heat preservation and stirring reaction at the temperature of 30-40 ℃ for 20-30 h; after the reaction is finished, sequentially carrying out centrifugal separation, washing and drying treatment on the biological components, and storing the obtained modified solid micro powder for later use;
step two, dipping the modified solid micro powder into the mixed solution according to the dosage ratio of 0.04-0.08 g/mL, uniformly mixing and dispersing, adding o-phthalaldehyde with the mass of 6-12% of the modified solid micro powder into the obtained dispersion liquid, and carrying out heat preservation reaction at the temperature of 30-40 ℃ for 3-5 hours; after the reaction is finished, sequentially filtering, washing and drying the obtained product components; storing the obtained solid material for later use;
putting the obtained solid material into 75-90% ethanol water solution according to the solid-liquid ratio of 0.02-0.06 g/mL, then putting 10-20% by mass of a reactant into the ethanol water solution, and then carrying out heat preservation reaction at the temperature of 35-45 ℃ for 5-8 h; after the reaction is finished, sequentially filtering, washing and drying the obtained product to obtain the finished product of the high-efficiency antibacterial agent.
Further, the preparation method of the solid micropowder in the step one comprises the following steps:
adding a silver ammonia solution with the mass of 1.5-2.5 times and the concentration of 0.5-0.8 mol/L into a porous inorganic nano microsphere water dispersion with the concentration of 2-5 wt%, and stirring and reacting for 2-4 h at the temperature of 25-35 ℃; after the reaction is finished, centrifugally separating the obtained product components for 3-5 times, dispersing the centrifugally separated materials in deionized water with the mass being 6-9 times of that of the product components, supplementing 35-45% by mass of deionized water and 0.25-0.4 mol/L glucose aqueous solution into the obtained dispersion liquid, and then carrying out heat preservation and stirring reaction at the temperature of 25-35 ℃ for 50-80 min; after the reaction is finished, carrying out centrifugal washing treatment on the obtained product to obtain the solid micro powder.
Furthermore, the preparation method of the porous inorganic nano-microsphere comprises the following steps: respectively dropwise adding 0.6-0.8% by volume of ammonia water with the concentration of 20-25% and 35-55% by volume of absolute ethyl alcohol into a hexadecyl trimethyl ammonium bromide aqueous solution with the concentration of 0.008-0.012 g/mL at the temperature of 30-40 ℃ while stirring, uniformly mixing and stirring, adding 4-7 times by volume of ethyl orthosilicate into the obtained mixed solution, carrying out sealed stirring reaction for 20-40 h, sequentially filtering, washing and drying the obtained product components, and finally calcining the product at the temperature of 500-750 ℃ for 3-5 h to obtain the porous inorganic nano microsphere finished product.
Furthermore, the preparation method of the mixed solution in the second step comprises the following steps: adding 8-15% of dodecyl trimethyl ammonium chloride and 10-20% of tea polyphenol into 70-85% of ethanol aqueous solution respectively, and performing ultrasonic dispersion uniformly to obtain a mixed solution.
Furthermore, the preparation method of the reactant in the third step comprises the following steps: dissolving 3-methoxy-4-hydroxybenzaldehyde in methylene chloride with the mass being 3-6 times of that of the 3-methoxy-4-hydroxybenzaldehyde, sequentially adding dibenzoyl peroxide with the molar weight being 1.0-1.5% of the 3-methoxy-4-hydroxybenzaldehyde and copper bromide with the molar weight being 0.95-1.05 times of that of the 3-methoxy-4-hydroxybenzaldehyde, uniformly mixing and stirring, and then carrying out heat preservation reaction at the temperature of 40 ℃ for 7 hours; after the reaction is finished, distilling the obtained product components at the temperature of 55 ℃ to obtain a reactant finished product.
Still further, the preparation method of the synergistic flame retardant comprises the following steps:
adding 25-35% by mass of zinc borate into an ethanol aqueous solution with the temperature of 55-65 ℃ and the concentration of 60-80%, fully dispersing, adding 8-15% by mass of 3-aminopropyltriethoxysilane into the ethanol aqueous solution, and carrying out heat preservation reaction for 5-8 h to obtain a first mixed component;
II, putting nano titanium dioxide into an ethanol water solution with the temperature of 45-55 ℃ according to a solid-to-liquid ratio of 0.008-0.012 g/mL, adding 3-glycidyl ether oxypropyltrimethoxysilane with the mass being 5-8 times of that of the nano titanium dioxide after ultrasonic dispersion for 20-40 min, and keeping the temperature to react for 4-8 h to obtain a second mixed component;
III, mixing the obtained first mixed component and second mixed component according to the proportion of 3: 1, carrying out ultrasonic dispersion for 20-30 min, raising the temperature of the obtained mixed phase to 70-80 ℃, and carrying out heat preservation reaction for 6-8 h at the temperature; sequentially filtering, washing and drying the product components to obtain the flame-retardant base material;
IV, putting the obtained flame-retardant base material into a mixed solvent which is prepared by mixing DMF and ethanol in equal volume and is at the temperature of 50-75 ℃ according to the material ratio of 0.01-0.016 g/mL, and then adding 10-18% by mass of triethyl phosphate into the mixed solvent; uniformly mixing and stirring, adding 2-methyl-1, 3-azole with the mass being 3-4.5% of the flame-retardant base material and 15-30% of ultraviolet absorbent UV-0 under the protection of nitrogen, and reacting for 6-10 h under heat preservation and stirring; and after the reaction is finished, filtering the obtained product components, washing the obtained filter material with N, N-dimethylformamide for 3-4 times, and then drying the filter material to obtain the synergistic flame retardant.
Furthermore, the pigment is any one of iron red, chrome yellow, chrome green, aluminum powder and carbon black.
A preparation method of a nano modified anticorrosive paint comprises the following steps:
s1, respectively placing the weighed lithopone, talcum powder and titanium dioxide into a drying box, and drying at the temperature of 130-150 ℃ for 3-4 hours; after drying, respectively preserving the materials for later use;
s2, putting the weighed polyurethane modified epoxy resin and bisphenol A epoxy resin into a first mixing kettle, and then putting 2-oxobutane into the first mixing kettle to mechanically mix for 30-40 min; after uniformly mixing, pouring the rest raw materials forming the component A into a first mixing kettle while stirring, and mechanically mixing and stirring for 50-60 min to obtain a mixed material, namely the component A;
s3, putting the weighed maleic anhydride and the T-99 multifunctional epoxy hardener into a second mixing kettle, mechanically mixing and stirring for 30-40 min, and after uniformly mixing, obtaining a mixed material in the second mixing kettle, namely a component B;
s4, mixing the following components in a weight ratio of 6-8: 1, putting the component A obtained in the step S2 and the component B obtained in the step S3 into a third mixing kettle, and mixing and stirring uniformly to obtain a finished product of the nano modified anticorrosive paint.
Advantageous effects
Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:
1. the nano microsphere material with a porous structure and a rich specific surface area is prepared by taking cetyl trimethyl ammonium bromide, ammonia water, ethyl orthosilicate and the like as raw materials. Then the nano microsphere material is taken as a base material and is soaked in silver ammonia solution, glucose aqueous solution is used for processing the nano microsphere material, and finally the solid micro powder with the nano silver powder deposited on the surface is prepared. The obtained solid micro powder is grafted and modified by 3-aminopropyltriethoxysilane, so that the dispersion performance of the solid micro powder is improved, the 3-aminopropyltriethoxysilane bonded on the surface of the solid micro powder can effectively bind and block the nano silver powder deposited on the surface of the solid micro powder, the loss of the nano silver is reduced, and the antibacterial performance of the solid micro powder is improved.
The obtained modified solid micro powder is soaked in a mixed solution containing dodecyl trimethyl ammonium chloride and tea polyphenol, and the dodecyl trimethyl ammonium chloride and the tea polyphenol are uniformly dispersed by ultrasonic, so that the dodecyl trimethyl ammonium chloride and the tea polyphenol are effectively dispersed in a three-dimensional network structure formed by 3-aminopropyltriethoxysilane on the surface of the solid micro powder, the oxidized rate of the silver powder is effectively slowed down by the existence of the tea polyphenol, and the antibacterial performance of the silver powder is effectively prolonged. And adding the o-phthalaldehyde to enable the o-phthalaldehyde to have a chemical reaction with amino on the surface of the modified solid micro-powder, then enabling the o-phthalaldehyde to have a secondary reaction with a reactant, and finally enabling the o-phthalaldehyde and the reactant to be effectively bonded on the surface of the modified solid micro-powder through the amino on the surface of the modified solid micro-powder, so that the antibacterial performance of the modified solid micro-powder with better antibacterial performance is further improved. The prepared high-efficiency antibacterial agent also has the effect of slow release and antibiosis, effectively improves the corrosion resistance of the prepared coating and prolongs the service life of the coating.
2. In the invention, zinc borate is dispersed in ethanol water solution, and then 3-aminopropyltriethoxysilane is added to prepare a first mixed component. And simultaneously dispersing the nano titanium dioxide in an ethanol solution, carrying out heat preservation reaction on the nano titanium dioxide and excessive 3-glycidyl ether oxypropyl trimethoxy silane, and finishing modification treatment on the nano silicon dioxide to obtain a second mixed component. And then mixing the first component and the second component and carrying out ultrasonic dispersion to ensure that the nano titanium dioxide takes 3-glycidyl ether oxypropyl trimethoxy silane as a bond and is connected to the surface of the zinc borate through a chemical bond, thereby forming the core-shell structure flame-retardant base material with flame retardant property.
The flame-retardant base material is soaked in a mixed solvent, triethyl phosphate is added, under the action of 2-methyl-1, 3-azole, an ultraviolet absorbent UV-0 and unreacted 3-glycidoxy propyl trimethoxy silane on the surface of nano titanium dioxide are subjected to chemical reaction and are bonded, and finally, the triethyl phosphate is fixed in a criss-cross three-dimensional network formed by the ultraviolet absorbent UV-0 and the 3-glycidoxy propyl trimethoxy silane, so that the flame-retardant property of the flame-retardant base material is further improved, and the ultraviolet resistance of the flame-retardant base material (mainly the nano titanium dioxide on the surface shell layer) is also improved to a certain extent. The obtained synergistic flame retardant is used as a raw material of the coating, so that the flame retardant property of the coating is improved. And the ultraviolet resistance of the paint is effectively improved through the mutual cooperation between the paint and the high-efficiency antibacterial agent, and the service life of the paint is prolonged.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be further described with reference to the following examples.
Example 1
A nano modified anticorrosive paint is prepared from a component A and a component B in a weight ratio of 6: 1, mixing;
the component A comprises the following raw materials in parts by weight: 25 parts of polyurethane modified epoxy resin, 70 parts of bisphenol A epoxy resin, 15 parts of 2-oxobutane, 2 parts of polyoxyethylene polyoxypropylene ether, 5 parts of a high-efficiency antibacterial agent, 3 parts of a synergistic flame retardant, 3 parts of iron oxide red, 2 parts of lithopone, 3 parts of talcum powder, 2 parts of titanium dioxide, 2 parts of an Effka EFKA3777 flatting agent and 3 parts of propylene glycol methyl ether acetate;
the component B comprises 6 parts by weight of maleic anhydride and 2 parts by weight of T-99 multifunctional epoxy curing agent.
The preparation method of the polyurethane modified epoxy resin comprises the following steps: according to the following steps: 1.2, mixing polytrimethylene terephthalate glycol with the molecular weight of 10000 and 2, 4' -diphenylmethane diisocyanate according to the molar ratio, then adding stannous octoate with the mass of 0.1% of the mixed feed liquid, mixing, stirring and reacting for 3 hours; then, reacting the obtained product component with epoxy resin E44 with the mass being 3 times of that of the product component for 3 hours; and after the reaction is finished, obtaining the polyurethane modified epoxy resin.
The preparation method of the high-efficiency antibacterial agent comprises the following steps:
step one, putting solid micro powder into an absolute ethyl alcohol water solution with the concentration of 60% according to the solid-to-liquid ratio of 0.01g/mL, adding 3-aminopropyl triethoxysilane with the mass of 0.8 times of the solid micro powder after uniformly mixing and stirring, and carrying out heat preservation and stirring reaction at the temperature of 30 ℃ for 20 hours; after the reaction is finished, sequentially carrying out centrifugal separation, washing and drying treatment on the biological components, and storing the obtained modified solid micro powder for later use;
step two, soaking the modified solid micro powder in the mixed solution according to the dosage ratio of 0.04g/mL, uniformly mixing and dispersing, adding o-phthalaldehyde with the mass of 6% of the modified solid micro powder into the obtained dispersion liquid, and carrying out heat preservation reaction for 3 hours at the temperature of 30 ℃; after the reaction is finished, sequentially filtering, washing and drying the obtained product components; storing the obtained solid material for later use;
putting the obtained solid material into 75% ethanol aqueous solution according to the solid-liquid ratio of 0.02g/mL, then putting a reactant with the mass of 10% of the solid material into the ethanol aqueous solution, and then carrying out heat preservation reaction at the temperature of 35 ℃ for 5 hours; after the reaction is finished, sequentially filtering, washing and drying the obtained product to obtain the finished product of the high-efficiency antibacterial agent.
The preparation method of the solid micropowder in the first step comprises the following steps:
adding silver ammonia solution with the mass being 1.5 times of that and the concentration being 0.5mol/L into porous inorganic nano microsphere water dispersion with the concentration being 2 wt%, and stirring and reacting for 2 hours at the temperature of 25 ℃; after the reaction is finished, performing centrifugal separation on the obtained product components for 3 times, dispersing the materials obtained by the centrifugal separation in deionized water with the mass being 6 times of that of the product components, supplementing 35% by mass of deionized water and 0.25mol/L glucose aqueous solution into the obtained dispersion liquid, and then performing heat preservation and stirring reaction at the temperature of 25 ℃ for 50 min; after the reaction is finished, carrying out centrifugal washing treatment on the obtained product to obtain the solid micro powder.
The preparation method of the porous inorganic nano-microsphere comprises the following steps: respectively dripping 0.6 percent of ammonia water with the volume, 20 percent of ammonia water with the volume and 35 percent of absolute ethyl alcohol into hexadecyl trimethyl ammonium bromide aqueous solution with the concentration of 0.008g/mL while stirring, mixing and stirring uniformly, adding tetraethoxysilane with the volume of 4 times into the obtained mixed solution, sealing, stirring and reacting for 20 hours, sequentially filtering, washing and drying the obtained product components, and finally calcining the product components at the temperature of 500 ℃ for 3 hours to obtain the finished product of the porous inorganic nano microsphere.
The preparation method of the mixed solution in the second step comprises the following steps: adding 8% of dodecyl trimethyl ammonium chloride and 10% of tea polyphenol into 70% of ethanol aqueous solution respectively, and performing ultrasonic dispersion uniformly to obtain a mixed solution.
The preparation method of the reactant in the third step comprises the following steps: dissolving 3-methoxy-4-hydroxybenzaldehyde in methylene chloride with the mass being 3 times of that of the 3-methoxy-4-hydroxybenzaldehyde, then sequentially adding dibenzoyl peroxide with the molar weight being 1.0 percent of the 3-methoxy-4-hydroxybenzaldehyde and copper bromide with the molar weight being 0.95 time of that of the 3-methoxy-4-hydroxybenzaldehyde into the mixture, uniformly mixing and stirring the mixture, and then carrying out heat preservation reaction for 7 hours at the temperature of 40 ℃; after the reaction is finished, distilling the obtained product components at the temperature of 55 ℃ to obtain a reactant finished product.
The preparation method of the synergistic flame retardant comprises the following steps:
adding 25% by mass of zinc borate into an ethanol aqueous solution with the temperature of 55 ℃ and the concentration of 60%, fully dispersing, adding 8% by mass of 3-aminopropyltriethoxysilane into the ethanol aqueous solution, and keeping the temperature for 5 hours to react to obtain a first mixed component;
II, putting the nano titanium dioxide into an ethanol water solution with the temperature of 45 ℃ according to the solid-to-liquid ratio of 0.008g/mL, adding 3-glycidyl ether oxypropyltrimethoxysilane with the mass 5 times that of the nano titanium dioxide after ultrasonic dispersion for 20min, and keeping the temperature to react for 4h to obtain a second mixed component;
III, mixing the obtained first mixed component and second mixed component according to the proportion of 3: 1, ultrasonically dispersing for 20min, then raising the temperature of the obtained mixed phase to 70 ℃, and carrying out heat preservation reaction for 6h at the temperature; sequentially filtering, washing and drying the product components to obtain the flame-retardant base material;
IV, putting the obtained flame-retardant base material into a mixed solvent which is prepared by mixing DMF and ethanol in equal volume and has the temperature of 50 ℃ according to the material ratio of 0.01g/mL, and then adding 10% by mass of triethyl phosphate into the mixed solvent; after uniformly mixing and stirring, adding 2-methyl-1, 3-azole with the mass being 3% of that of the flame-retardant base material and 15% of ultraviolet absorbent UV-0 under the protection of nitrogen, and reacting for 6 hours under heat preservation and stirring; after the reaction is finished, the obtained product components are filtered, the obtained filter material is washed for 3 times by N, N-dimethylformamide and then is dried, and the synergistic flame retardant is obtained.
A preparation method of a nano modified anticorrosive paint comprises the following steps:
s1, respectively putting the weighed lithopone, talcum powder and titanium dioxide into a drying box, and drying at the temperature of 130 ℃ for 3 hours; after drying, respectively preserving the materials for later use;
s2, putting the weighed polyurethane modified epoxy resin and bisphenol A epoxy resin into a first mixing kettle, and then putting 2-oxobutane into the first mixing kettle to be mechanically mixed for 30 min; after the components are uniformly mixed, pouring the rest raw materials forming the component A into a first mixing kettle while stirring, mechanically mixing and stirring for 50min, and obtaining a mixed material, namely the component A;
s3, putting the weighed maleic anhydride and the T-99 multifunctional epoxy hardener into a second mixing kettle, mechanically mixing and stirring for 30min, and after uniformly mixing, obtaining a mixed material in the second mixing kettle, namely the component B;
s4, mixing the following components in a weight ratio of 6: 1, putting the component A obtained in the step S2 and the component B obtained in the step S3 into a third mixing kettle, and mixing and stirring uniformly to obtain a finished product of the nano modified anticorrosive paint.
Example 2
The nano modified anticorrosive paint provided by the embodiment is substantially the same as that of embodiment 1, and the main difference lies in that the material ratio of the nano modified anticorrosive paint is different, and the specific raw material ratio of the embodiment is as follows:
the anticorrosive paint comprises a component A and a component B in a weight ratio of 7: 1, mixing;
the component A comprises the following raw materials in parts by weight: 45 parts of polyurethane modified epoxy resin, 100 parts of bisphenol A epoxy resin, 60 parts of 2-oxobutane, 3 parts of polyoxyethylene polyoxypropylene ether, 7 parts of a high-efficiency antibacterial agent, 5 parts of a synergistic flame retardant, 4 parts of a pigment, 3 parts of lithopone, 4 parts of talcum powder, 3 parts of titanium dioxide, 3 parts of an Effka EFKA3777 flatting agent and 5 parts of propylene glycol methyl ether acetate;
the component B comprises 15 parts by weight of maleic anhydride and 4 parts by weight of T-99 multifunctional epoxy curing agent.
Example 3
The nano modified anticorrosive paint provided by the embodiment is substantially the same as that of embodiment 1, and the main difference lies in that the material ratio of the nano modified anticorrosive paint is different, and the specific raw material ratio of the embodiment is as follows:
the anticorrosive paint comprises a component A and a component B in a weight ratio of 8: 1, mixing;
the component A comprises the following raw materials in parts by weight: 60 parts of polyurethane modified epoxy resin, 130 parts of bisphenol A epoxy resin, 100 parts of 2-oxobutane, 5 parts of polyoxyethylene polyoxypropylene ether, 9 parts of a high-efficiency antibacterial agent, 7 parts of a synergistic flame retardant, 6 parts of a pigment, 4 parts of lithopone, 5 parts of talcum powder, 4 parts of titanium dioxide, 5 parts of an Effka EFKA3777 flatting agent and 6 parts of propylene glycol methyl ether acetate;
the component B comprises, by weight, 22 parts of maleic anhydride and 6 parts of T-99 multifunctional epoxy curing agent.
Comparative example 1: the nano modified anticorrosive paint and the preparation method provided by the embodiment are substantially the same as those of the embodiment 1, and the main differences are as follows: the nano silicon dioxide with the same particle size range is adopted to replace the high-efficiency antibacterial agent;
comparative example 2: the nano modified anticorrosive paint and the preparation method provided by the embodiment are substantially the same as those of the embodiment 1, and the main differences are as follows: the raw materials adopt the same amount of zinc borate to replace the synergistic flame retardant;
comparative example 3: the nano modified anticorrosive paint and the preparation method provided by the embodiment are substantially the same as those of the embodiment 1, and the main differences are as follows: the raw materials adopt the same amount of flame-retardant base materials to replace the synergistic flame retardant;
comparative example 4: the nano modified anticorrosive paint and the preparation method provided by the embodiment are substantially the same as those of the embodiment 1, and the main differences are as follows: the mixed solution used in the process of preparing the high-efficiency antibacterial agent does not contain tea polyphenol;
performance testing
The anticorrosive coatings prepared in the same amount in the examples 1-3 and the comparative examples 1-4 are taken, the related performances of each group of anticorrosive coatings are detected, and the obtained data are recorded in the following table:
1. and (3) testing antibacterial performance: testing according to the antibacterial property testing method and antibacterial effect of the national standard GB/T21866-;
2. and (3) corrosion resistance testing: testing the acid corrosion resistance and the salt spray resistance of each group of coating samples according to GB/T6739-2006 and GB/T1771-2007 respectively, and recording the obtained data in Table 2;
3. and (3) testing ultraviolet resistance: carrying out ultraviolet resistance tests on each group of coating samples according to GB/T23987-2009 standard, and recording obtained data in Table 2;
4. and (3) testing the flame retardant property: flame retardant properties were measured according to the vertical burning test method in UL94 flammability tests of materials for equipment and appliances parts, and the data obtained are reported in Table 2;
table 1: relevant test data of antibacterial performance and long-acting antibacterial performance of each paint sample;
as can be seen by comparing and analyzing the relevant data in the table 1, the antibacterial performance of the coating product prepared by the invention is obviously superior to that of the coating products provided by the comparative examples 1-4, and the antibacterial performance is more durable. Furthermore, it should be noted that the antibacterial performance of the coating product provided in comparative example 4 after 1 year is shown to be reduced by comparison and analysis, probably because the silver powder on the surface of the modified solid micropowder is exposed to the air for a long time and undergoes redox reaction with the related chemical substances in the air (such as sulfide in the air), so that the antibacterial performance of the silver powder itself is shown to be reduced.
Table 2: relevant test data of corrosion resistance, ultraviolet aging resistance and flame retardant property of each coating sample;
by comparing and analyzing the relevant data in the table 2, compared with the coating products provided in the comparative examples 1-4, the coating product prepared by the invention has better corrosion resistance, and better ultraviolet resistance and flame retardant property. The service life of the coating product is prolonged to a certain extent, and the quality of the coating product is guaranteed.
By comparing and analyzing the relevant data in the tables 1 and 2, the prepared coating not only has good antibacterial performance, but also has good flame retardant performance and ultraviolet resistance, thereby effectively prolonging the service life of the coating and ensuring the quality of the coating. Therefore, the anticorrosive coating prepared by the invention has wider market prospect and is more suitable for popularization.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (10)
1. The nano modified anticorrosive paint is prepared from a component A and a component B in a weight ratio of 6-8: 1, mixing; the method is characterized in that:
the component A comprises the following raw materials in parts by weight: 25-60 parts of polyurethane modified epoxy resin, 70-130 parts of bisphenol A epoxy resin, 15-100 parts of 2-oxobutane, 2-5 parts of polyoxyethylene polyoxypropylene ether, 5-9 parts of a high-efficiency antibacterial agent, 3-7 parts of a synergistic flame retardant, 3-6 parts of a pigment, 2-4 parts of lithopone, 3-5 parts of talcum powder, 2-4 parts of titanium dioxide, 2-5 parts of a fluorocarbon modified flatting agent and 3-6 parts of propylene glycol methyl ether acetate;
the component B comprises, by weight, 6-22 parts of maleic anhydride and 2-6 parts of T-99 multifunctional epoxy curing agent.
2. The nano modified anticorrosive paint according to claim 1, wherein the preparation method of the polyurethane modified epoxy resin comprises the following steps: according to the following steps: 1.2, mixing polytrimethylene terephthalate glycol with the molecular weight of 10000 and 2, 4' -diphenylmethane diisocyanate according to the molar ratio, then adding stannous octoate with the mass of 0.1-0.15% of the mixed material liquid, mixing, stirring and reacting for 3-4 h; then reacting the obtained product component with epoxy resin E44 with the mass being 3-8 times of that of the product component for 3-5 hours; and after the reaction is finished, obtaining the polyurethane modified epoxy resin.
3. The nano modified anticorrosive paint as claimed in claim 1, wherein the preparation process of the high efficiency antibacterial agent includes the following steps:
step one, putting solid micro powder into an absolute ethyl alcohol water solution with the concentration of 60-75% according to the solid-to-liquid ratio of 0.01-0.015 g/mL, uniformly mixing and stirring, adding 3-aminopropyltriethoxysilane with the mass of 0.8-1.5 times of that of the solid micro powder, and carrying out heat preservation stirring reaction at the temperature of 30-40 ℃ for 20-30 hours; after the reaction is finished, sequentially carrying out centrifugal separation, washing and drying treatment on the biological components, and storing the obtained modified solid micro powder for later use;
step two, dipping the modified solid micro powder into the mixed solution according to the dosage ratio of 0.04-0.08 g/mL, uniformly mixing and dispersing, adding o-phthalaldehyde with the mass of 6-12% of the modified solid micro powder into the obtained dispersion liquid, and carrying out heat preservation reaction at the temperature of 30-40 ℃ for 3-5 hours; after the reaction is finished, sequentially filtering, washing and drying the obtained product components; storing the obtained solid material for later use;
putting the obtained solid material into 75-90% ethanol water solution according to the solid-liquid ratio of 0.02-0.06 g/mL, then putting 10-20% by mass of a reactant into the ethanol water solution, and then carrying out heat preservation reaction at the temperature of 35-45 ℃ for 5-8 h; after the reaction is finished, sequentially filtering, washing and drying the obtained product to obtain the finished product of the high-efficiency antibacterial agent.
4. The nano-modified anticorrosive paint according to claim 3, characterized in that: the preparation method of the solid micro powder in the first step comprises the following steps:
adding a silver ammonia solution with the mass of 1.5-2.5 times and the concentration of 0.5-0.8 mol/L into a porous inorganic nano microsphere water dispersion with the concentration of 2-5 wt%, and stirring and reacting for 2-4 h at the temperature of 25-35 ℃; after the reaction is finished, centrifugally separating the obtained product components for 3-5 times, dispersing the centrifugally separated materials in deionized water with the mass being 6-9 times of that of the product components, supplementing 35-45% by mass of deionized water and 0.25-0.4 mol/L glucose aqueous solution into the obtained dispersion liquid, and then carrying out heat preservation and stirring reaction at the temperature of 25-35 ℃ for 50-80 min; after the reaction is finished, carrying out centrifugal washing treatment on the obtained product to obtain the solid micro powder.
5. The nano modified anticorrosive paint according to claim 4, wherein the preparation method of the porous inorganic nano microspheres comprises the following steps: respectively dropwise adding 0.6-0.8% by volume of ammonia water with the concentration of 20-25% and 35-55% by volume of absolute ethyl alcohol into a hexadecyl trimethyl ammonium bromide aqueous solution with the concentration of 0.008-0.012 g/mL at the temperature of 30-40 ℃ while stirring, uniformly mixing and stirring, adding 4-7 times by volume of ethyl orthosilicate into the obtained mixed solution, carrying out sealed stirring reaction for 20-40 h, sequentially filtering, washing and drying the obtained product components, and finally calcining the product at the temperature of 500-750 ℃ for 3-5 h to obtain the porous inorganic nano microsphere finished product.
6. The nano modified anticorrosive paint according to claim 3, wherein the preparation method of the mixed solution in the second step comprises the following steps: adding 8-15% of dodecyl trimethyl ammonium chloride and 10-20% of tea polyphenol into 70-85% of ethanol aqueous solution respectively, and performing ultrasonic dispersion uniformly to obtain a mixed solution.
7. The nano-modified anticorrosive paint according to claim 3, characterized in that: the preparation method of the reactant in the third step comprises the following steps: dissolving 3-methoxy-4-hydroxybenzaldehyde in methylene chloride with the mass being 3-6 times of that of the 3-methoxy-4-hydroxybenzaldehyde, sequentially adding dibenzoyl peroxide with the molar weight being 1.0-1.5% of the 3-methoxy-4-hydroxybenzaldehyde and copper bromide with the molar weight being 0.95-1.05 times of that of the 3-methoxy-4-hydroxybenzaldehyde, uniformly mixing and stirring, and then carrying out heat preservation reaction at the temperature of 40 ℃ for 7 hours; after the reaction is finished, distilling the obtained product components at the temperature of 55 ℃ to obtain a reactant finished product.
8. The nano-modified anticorrosive paint according to claim 1, characterized in that: the preparation method of the synergistic flame retardant comprises the following steps:
adding 25-35% by mass of zinc borate into an ethanol aqueous solution with the temperature of 55-65 ℃ and the concentration of 60-80%, fully dispersing, adding 8-15% by mass of 3-aminopropyltriethoxysilane into the ethanol aqueous solution, and carrying out heat preservation reaction for 5-8 h to obtain a first mixed component;
II, adding nano titanium dioxide into an ethanol aqueous solution at the temperature of 45-55 ℃ according to a solid-to-liquid ratio of 0.008-0.012 g/mL, adding 3-glycidyl ether oxypropyltrimethoxysilane with the mass being 5-8 times that of the nano titanium dioxide after ultrasonic dispersion is carried out for 20-40 min, and carrying out heat preservation reaction for 4-8 h to obtain a second mixed component;
III, mixing the obtained first mixed component and second mixed component according to the proportion of 3: 1, performing ultrasonic dispersion for 20-30 min, raising the temperature of the obtained mixed phase to 70-80 ℃, and performing heat preservation reaction for 6-8 h at the temperature; sequentially filtering, washing and drying the product components to obtain the flame-retardant base material;
IV, putting the obtained flame-retardant base material into a mixed solvent which is prepared by mixing DMF and ethanol in equal volume and is at the temperature of 50-75 ℃ according to the material ratio of 0.01-0.016 g/mL, and then adding 10-18% by mass of triethyl phosphate into the mixed solvent; uniformly mixing and stirring, adding 2-methyl-1, 3-azole with the mass being 3-4.5% of the flame-retardant base material and 15-30% of ultraviolet absorbent UV-0 under the protection of nitrogen, and reacting for 6-10 h under heat preservation and stirring; and after the reaction is finished, filtering the obtained product components, washing the obtained filter material with N, N-dimethylformamide for 3-4 times, and then drying the filter material to obtain the synergistic flame retardant.
9. The nano-modified anticorrosive paint according to claim 1, characterized in that: the pigment is any one of iron red, chrome yellow, chrome green, aluminum powder and carbon black.
10. The preparation method of the nano modified anticorrosive paint according to any one of claims 1 to 9, characterized by comprising the following steps:
s1, respectively placing the weighed lithopone, talcum powder and titanium dioxide into a drying box, and drying at the temperature of 130-150 ℃ for 3-4 hours; after drying, respectively preserving the materials for later use;
s2, putting the weighed polyurethane modified epoxy resin and bisphenol A epoxy resin into a first mixing kettle, and then putting 2-oxobutane into the first mixing kettle to mechanically mix for 30-40 min; after uniformly mixing, pouring the rest raw materials forming the component A into a first mixing kettle while stirring, and mechanically mixing and stirring for 50-60 min to obtain a mixed material, namely the component A;
s3, putting the weighed maleic anhydride and the T-99 multifunctional epoxy hardener into a second mixing kettle, mechanically mixing and stirring for 30-40 min, and after uniformly mixing, obtaining a mixed material in the second mixing kettle, namely a component B;
s4, mixing the following components in a weight ratio of 6-8: 1, putting the component A obtained in the step S2 and the component B obtained in the step S3 into a third mixing kettle, and mixing and stirring uniformly to obtain a finished product of the nano modified anticorrosive paint.
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