CN113980538A - High-chemical-resistance water-based tower barrel coating and preparation method thereof - Google Patents
High-chemical-resistance water-based tower barrel coating and preparation method thereof Download PDFInfo
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- CN113980538A CN113980538A CN202111347407.8A CN202111347407A CN113980538A CN 113980538 A CN113980538 A CN 113980538A CN 202111347407 A CN202111347407 A CN 202111347407A CN 113980538 A CN113980538 A CN 113980538A
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- 238000000576 coating method Methods 0.000 title claims abstract description 54
- 239000011248 coating agent Substances 0.000 title claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000002904 solvent Substances 0.000 claims abstract description 32
- 239000003999 initiator Substances 0.000 claims abstract description 31
- 239000003822 epoxy resin Substances 0.000 claims abstract description 27
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 27
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000945 filler Substances 0.000 claims abstract description 24
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000002562 thickening agent Substances 0.000 claims abstract description 19
- 239000000126 substance Substances 0.000 claims abstract description 17
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 claims abstract description 16
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 16
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000007822 coupling agent Substances 0.000 claims abstract description 14
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000013530 defoamer Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 239000000243 solution Substances 0.000 claims description 46
- 229920005989 resin Polymers 0.000 claims description 35
- 239000011347 resin Substances 0.000 claims description 35
- 238000010438 heat treatment Methods 0.000 claims description 30
- 238000003756 stirring Methods 0.000 claims description 25
- 239000011521 glass Substances 0.000 claims description 17
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 16
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 16
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 239000002518 antifoaming agent Substances 0.000 claims description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 11
- KXDAEFPNCMNJSK-UHFFFAOYSA-N Benzamide Chemical compound NC(=O)C1=CC=CC=C1 KXDAEFPNCMNJSK-UHFFFAOYSA-N 0.000 claims description 10
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 10
- 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 10
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 10
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 10
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 10
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 claims description 10
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 239000004408 titanium dioxide Substances 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 239000011259 mixed solution Substances 0.000 claims description 5
- 239000010453 quartz Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 238000004381 surface treatment Methods 0.000 claims description 5
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 239000000049 pigment Substances 0.000 claims description 2
- -1 polysiloxane Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 150000003376 silicon Chemical class 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 3
- 239000006115 industrial coating Substances 0.000 abstract description 2
- 239000004925 Acrylic resin Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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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
- C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D151/08—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/10—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers containing more than one epoxy radical per molecule
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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
- 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
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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
- 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
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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
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
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- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a high-chemical-resistance water-based tower barrel coating, relates to the technical field of water-based industrial coatings, and particularly relates to a high-chemical-resistance water-based tower barrel coating which comprises the following raw materials in parts by weight: 1-4 parts of acrylic acid, 10-50 parts of epoxy resin, 0.2-2 parts of acrylonitrile, 1-4 parts of acrylamide, 2-8 parts of acrylic acid-2-ethylhexyl ester, 20-40 parts of butyl acrylate, 10-40 parts of solvent, 1-3 parts of initiator, 0.2-0.6 part of thickener, 0.2-2 parts of defoamer, 1-4 parts of coupling agent, 5-30 parts of color filler and 5-30 parts of scale filler. The invention effectively solves the problem of compatibility of the epoxy resin and the acrylic acid, so that the coating has the advantages of the acrylic acid coating and the epoxy resin coating after preparation, the chemical resistance and the wear resistance of the coating are obviously improved by adding the acrylic acid, and the defect of poor chemical resistance of the common water-based coating is overcome.
Description
Technical Field
The invention relates to the technical field of aqueous industrial coatings, in particular to a high-chemical-resistance aqueous tower barrel coating.
Background
In recent years, the demand for metal packaging materials has been increasing, but corrosion of metals has been a problem that has been difficult to solve. According to the reports of the relevant documents, the corrosion loss accounts for 10% -15% of all the losses of iron products, so the research on the protective coating for the metal surface is not slow enough.
The metal product needs to be protected on the inner wall, and the outer wall of the metal product also needs to be protected and packaged by using materials such as a polymer coating and the like, the protective material used on the outer wall generally adopts acrylic resin, and the acrylic resin has good performances such as glossiness, hardness, corrosion resistance, pollution resistance, weather resistance, water resistance and the like, can play a role in decoration and protection, but the existing water-based paint made of acrylic resin is poor in chemical resistance when in use, so that the protection effect of a paint layer is poor, and a high-chemical-resistance water-based paint is urgently needed in real life, and therefore a high-chemical-resistance water-based tower barrel paint is provided.
Disclosure of Invention
The invention aims to provide a high-chemical-resistance water-based tower barrel coating aiming at the defects of the prior art so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a high-chemical-resistance water-based tower barrel coating comprises the following raw materials in parts by weight: 1-4 parts of acrylic acid, 10-50 parts of epoxy resin, 0.2-2 parts of acrylonitrile, 1-4 parts of acrylamide, 2-8 parts of acrylic acid-2-ethylhexyl ester, 20-40 parts of butyl acrylate, 10-40 parts of solvent, 1-3 parts of initiator, 0.2-0.6 part of thickener, 0.2-2 parts of defoamer, 1-4 parts of coupling agent, 5-30 parts of color filler and 5-30 parts of scale filler.
As a preferable technical scheme of the invention, the high-chemical-resistance water-based tower barrel coating comprises the following raw materials in parts by weight: 2-4 parts of acrylic acid, 20-40 parts of epoxy resin, 0.4-1.2 parts of acrylonitrile, 1-2 parts of acrylamide, 5-7 parts of 2-ethylhexyl acrylate, 20-30 parts of butyl acrylate, 10-30 parts of solvent, 1.2-2.3 parts of initiator, 0.2-0.4 part of thickener, 0.5-2 parts of defoamer, 2-4 parts of coupling agent, 5-20 parts of color filler and 10-30 parts of scale filler.
As a preferable technical scheme of the invention, the high-chemical-resistance water-based tower barrel coating comprises the following raw materials in parts by weight: 2 parts of acrylic acid, 20 parts of epoxy resin, 0.4 part of acrylonitrile, 1 part of acrylamide, 5 parts of acrylic acid-2-ethylhexyl ester, 20 parts of butyl acrylate, 30 parts of solvent, 1.2 parts of initiator, 0.2 part of thickener, 0.5 part of defoamer, 2 parts of coupling agent, 5 parts of color filler and 10 parts of scale filler. .
As a preferred technical scheme of the invention, the color filler is one or more of titanium dioxide, pigment carbon black, scarlet powder or talcum powder, the filler is one of nano glass flakes, stainless steel flakes or mica flakes, and the coupling agent is one of a silane coupling agent and a titanate coupling agent.
As a preferable technical scheme of the invention, the defoaming agent is one of polyether defoaming agent, organic silicon defoaming agent, polyether modified silicon defoaming agent or polysiloxane defoaming agent, and the thickening agent is polyurethane thickening agent.
As a preferred technical scheme of the invention, the solvent is prepared by the following method: adding heavy aromatic hydrocarbon into the ethylene glycol monobutyl ether and mixing to obtain the solvent.
As a preferable technical scheme of the invention, the mass ratio of the ethylene glycol monobutyl ether to the heavy aromatic hydrocarbon is 2: 1.
As a preferred technical scheme of the invention, the initiator is prepared by the following method: (1) mixing 30% hydrogen peroxide and 30% sodium hydroxide solution to generate sodium peroxide solution; (2) adding a benzamide solution into a sodium peroxide aqueous solution, stirring continuously, cooling generated benzoyl peroxide, and filtering; (3) taking the mass ratio of 2:1, recrystallizing with methanol/chloroform, and drying benzoyl peroxide to obtain the initiator.
The invention also provides a preparation method of the high-chemical-resistance water-based tower barrel coating, which comprises the following steps:
s1, mixing 5-10 parts of heavy aromatic hydrocarbon and 10-20 parts of ethylene glycol monobutyl ether to obtain a solvent, adding 10-50 parts of epoxy resin into the solvent, continuously stirring to dilute the epoxy resin to 50%, adding 1-4 parts of acrylamide again at the moment, heating to 70 ℃, and heating for one hour to obtain a mixed resin solution a;
s2, adding 1-4 parts of acrylic acid, 20-40 parts of butyl acrylate, 2-8 parts of acrylic acid-2-ethylhexyl ester and 1/3 mixed resin solution into a stirrer, heating, adding the rest 2/3 mixed resin again when the temperature is increased to 90 ℃, heating for 0.5 hour, adding 1-2 parts of initiator, heating for one hour, adding the rest 1-2 of initiator again, and heating for one hour to obtain mixed resin solution b;
s3, grinding 5-20 parts of nano glass flakes to 20-400 um, pouring 1-4 parts of silane coupling agent to perform surface treatment on the nano glass flakes, standing for 2-4 hours, pouring the treated nano glass flakes, 5-15 parts of titanium dioxide and 5-15 parts of quartz powder into mixed resin solution b, and stirring until the materials are completely mixed to obtain mixed resin solution c;
s4, slowly adding 0.2-0.6 part of thickening agent into the mixed resin solution c, continuously stirring until the mixed solution is at a proper viscosity, then adding 0.2-0.6 part of defoaming agent, stirring, and standing for 2 hours to obtain the high-chemical-resistance water-based tower coating.
Compared with the prior art, the invention provides the high-chemical-resistance water-based tower barrel coating, which has the following beneficial effects:
1. in the preparation method, the solvent is an organic solvent obtained by mixing heavy aromatic hydrocarbon and ethylene glycol monobutyl ether, so that the temperature generated in the reaction of acrylic acid and epoxy resin can be effectively reduced, the content of impurities in the polymerization reaction of acrylic acid and epoxy resin can be reduced, the reaction rate of acrylic acid and epoxy resin can be accelerated by introducing the initiator, the problem of incompatibility of epoxy resin and acrylic acid is solved, and the prepared coating has the advantages of acrylic coating and epoxy resin coating;
2. in the preparation method, the chemical resistance and the wear resistance of the coating are obviously improved by introducing the acrylonitrile, the defect of poor chemical resistance of the common water-based coating is overcome, the hardness of a coating film is greatly enhanced in the coating process of the coating by introducing the acrylamide, the impact resistance of the coating is improved, and the anti-cracking capability of the coating in the later use is improved by adding a proper amount of the 2-ethylhexyl acrylate.
Drawings
FIG. 1 is a graph of the results obtained by paint solvent rub resistance assay GB/T23989-2009;
FIG. 2 is a graph of the results obtained by the cup bulge test GB/T9753-2006.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 first embodiment is as follows:
the invention provides a high-chemical-resistance water-based tower barrel coating which comprises the following raw materials in parts by weight: 2 parts of acrylic acid, 20 parts of epoxy resin, 0.4 part of acrylonitrile, 1 part of acrylamide, 5 parts of acrylic acid-2-ethylhexyl ester, 20 parts of butyl acrylate, 10 parts of solvent, 1.2 parts of initiator, 0.2 part of thickener, 0.5 part of defoamer, 2 parts of coupling agent, 5 parts of color filler and 10 parts of scale filler.
Wherein, the solvent is prepared by the following method: adding heavy aromatic hydrocarbon into the ethylene glycol monobutyl ether and mixing to obtain a solvent, wherein the mass ratio of the ethylene glycol monobutyl ether to the heavy aromatic hydrocarbon is 2: 1.
The initiator is prepared by the following method: (1) mixing 30% hydrogen peroxide and 30% sodium hydroxide solution to generate sodium peroxide solution; (2) adding a benzamide solution into a sodium peroxide aqueous solution, stirring continuously, cooling generated benzoyl peroxide, and filtering; (3) taking the mass ratio of 1:1, recrystallizing with methanol/chloroform, and drying benzoyl peroxide to obtain the initiator.
The invention also provides a preparation method of the high-chemical-resistance water-based tower barrel coating, which comprises the following steps:
s1, mixing 5 parts of heavy aromatic hydrocarbon and 10 parts of ethylene glycol monobutyl ether to obtain a solvent, adding 20 parts of epoxy resin into the solvent, continuously stirring to dilute the epoxy resin to 50%, adding 1 part of acrylamide again, heating to 70 ℃, and heating for one hour to obtain a mixed resin solution a;
s2, adding 15 parts of acrylic acid, 30 parts of butyl acrylate, 5 parts of acrylic acid-2-ethylhexyl ester and 1/3 mixed resin solution into a stirrer, heating, adding the rest 2/3 mixed resin again when the temperature is raised to 90 ℃, heating for 0.5 hour again, adding 0.4 part of initiator at the moment, heating for one hour, adding the rest 0.8 initiator again, and heating for one hour to obtain mixed resin solution b;
s3, grinding 5 parts of nano glass flakes to 20-400 um, pouring 2 parts of silane coupling agent to perform surface treatment on the nano glass flakes, standing for 2-4 hours, pouring the treated nano glass flakes, 5 parts of titanium dioxide and 5 parts of quartz powder into mixed resin solution b, and stirring until the materials are completely mixed to obtain mixed resin solution c;
and S4, slowly adding 0.2 part of thickening agent into the mixed resin solution c, continuously stirring until the mixed solution is at a proper viscosity, then adding 0.5 part of defoaming agent, stirring, and standing for 2 hours to obtain the high-chemical-resistance water-based tower coating.
Example two:
the invention provides a high-chemical-resistance water-based tower barrel coating which comprises the following raw materials in parts by weight: 3 parts of acrylic acid, 30 parts of epoxy resin, 0.8 part of acrylonitrile, 1.5 parts of acrylamide, 6 parts of 2-ethylhexyl acrylate, 25 parts of butyl acrylate, 20 parts of solvent, 1.7 parts of initiator, 0.2 part of thickener, 0.5 part of defoamer, 2 parts of coupling agent, 5 parts of color filler and 10 parts of scale filler.
Wherein, the solvent is prepared by the following method: adding heavy aromatic hydrocarbon into the ethylene glycol monobutyl ether and mixing to obtain a solvent, wherein the mass ratio of the ethylene glycol monobutyl ether to the heavy aromatic hydrocarbon is 3: 2.
The initiator is prepared by the following method: (1) mixing 30% hydrogen peroxide and 30% sodium hydroxide solution to generate sodium peroxide solution; (2) adding a benzamide solution into a sodium peroxide aqueous solution, stirring continuously, cooling generated benzoyl peroxide, and filtering; (3) taking the mass ratio of 1.5: 1, recrystallizing with methanol/chloroform, and drying benzoyl peroxide to obtain the initiator.
The invention also provides a preparation method of the high-chemical-resistance water-based tower barrel coating, which comprises the following steps:
s1, mixing 20 parts of heavy aromatic hydrocarbon and 30 parts of ethylene glycol monobutyl ether to obtain a solvent, adding 30 parts of epoxy resin into the solvent, continuously stirring to dilute the epoxy resin to 50%, adding 1.5 parts of acrylamide again, heating to 70 ℃, and heating for one hour to obtain a mixed resin solution a;
s2, adding 3 parts of acrylic acid, 25 parts of butyl acrylate, 6 parts of acrylic acid-2-ethylhexyl ester and 1/3 mixed resin solution into a stirrer, heating, adding the rest 2/3 mixed resin again when the temperature is raised to 90 ℃, heating for 0.5 hour, adding 0.5 part of initiator, heating for one hour, adding the rest 1.2 parts of initiator again, and heating for one hour to obtain mixed resin solution b;
s3, grinding 5 parts of nano glass flakes to 20-400 um, pouring 2 parts of silane coupling agent to perform surface treatment on the nano glass flakes, standing for 2-4 hours, pouring the treated nano glass flakes, 5 parts of titanium dioxide and 5 parts of quartz powder into mixed resin solution b, and stirring until the materials are completely mixed to obtain mixed resin solution c;
and S4, slowly adding 0.2 part of thickening agent into the mixed resin solution c, continuously stirring until the mixed solution is at a proper viscosity, then adding 0.5 part of defoaming agent, stirring, and standing for 2 hours to obtain the high-chemical-resistance water-based tower coating.
Example three:
the invention provides a high-chemical-resistance water-based tower barrel coating which comprises the following raw materials in parts by weight: 4 parts of acrylic acid, 40 parts of epoxy resin, 1.2 parts of acrylonitrile, 2 parts of acrylamide, 7 parts of acrylic acid-2-ethylhexyl ester, 30 parts of butyl acrylate, 30 parts of solvent, 2.3 parts of initiator, 0.2 part of thickener, 0.5 part of defoamer, 2 parts of coupling agent, 5 parts of color filler and 10 parts of scale filler.
Wherein, the solvent is prepared by the following method: adding heavy aromatic hydrocarbon into the ethylene glycol monobutyl ether and mixing to obtain a solvent, wherein the mass ratio of the ethylene glycol monobutyl ether to the heavy aromatic hydrocarbon is 1: 1.
The initiator is prepared by the following method: (1) mixing 30% hydrogen peroxide and 30% sodium hydroxide solution to generate sodium peroxide solution; (2) adding a benzamide solution into a sodium peroxide aqueous solution, stirring continuously, cooling generated benzoyl peroxide, and filtering; (3) taking the mass ratio of 2:1, recrystallizing with methanol/chloroform, and drying benzoyl peroxide to obtain the initiator.
The invention also provides a preparation method of the high-chemical-resistance water-based tower barrel coating, which comprises the following steps:
s1, mixing 30 parts of heavy aromatic hydrocarbon and 30 parts of ethylene glycol monobutyl ether to obtain a solvent, adding 30 parts of epoxy resin into the solvent, continuously stirring to dilute the epoxy resin to 50%, adding 2 parts of acrylamide again, heating to 70 ℃, and heating for one hour to obtain a mixed resin solution a;
s2, adding 4 parts of acrylic acid, 30 parts of butyl acrylate, 7 parts of acrylic acid-2-ethylhexyl ester and 1/3 mixed resin solution into a stirrer, heating, adding the rest 2/3 mixed resin again when the temperature is raised to 90 ℃, heating for 0.5 hour, adding 0.8 part of initiator, heating for one hour, adding the rest 1.5 parts of initiator again, and heating for one hour to obtain mixed resin solution b;
s3, grinding 5 parts of nano glass flakes to 20-400 um, pouring 2 parts of silane coupling agent to perform surface treatment on the nano glass flakes, standing for 2-4 hours, pouring the treated nano glass flakes, 5 parts of titanium dioxide and 5 parts of quartz powder into mixed resin solution b, and stirring until the materials are completely mixed to obtain mixed resin solution c;
and S4, slowly adding 0.2 part of thickening agent into the mixed resin solution c, continuously stirring until the mixed solution is at a proper viscosity, then adding 0.5 part of defoaming agent, stirring, and standing for 2 hours to obtain the high-chemical-resistance water-based tower coating.
A part of the high chemical resistance water-based tower barrel coating prepared by the first to fifth embodiments of the invention is taken out and tested as follows:
attached table 1
As can be seen from the attached table 1, the figure 1 and the figure 2, the high-chemical-resistance water-based tower barrel coating prepared in the first embodiment to the third embodiment of the invention has good adhesive force and impact resistance, the chemical resistance of the coating can be effectively improved by introducing acrylonitrile, and the anti-cracking capability of the coating can be improved by adding a proper amount of acrylic acid when the coating is used.
Attached table 2
As shown by the comparison of the attached table 2, the high chemical resistance aqueous tower tube coating prepared in the first to third embodiments of the invention has excellent chemical resistance and crack resistance compared with the existing aqueous tower tube coating, and meanwhile, the adhesive force and the impact resistance are also obviously improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A high-chemical-resistance water-based tower barrel coating is characterized in that: the feed comprises the following raw materials in parts by weight: 1-4 parts of acrylic acid, 10-50 parts of epoxy resin, 0.2-2 parts of acrylonitrile, 1-4 parts of acrylamide, 2-8 parts of acrylic acid-2-ethylhexyl ester, 20-40 parts of butyl acrylate, 10-40 parts of solvent, 1-3 parts of initiator, 0.2-0.6 part of thickener, 0.2-2 parts of defoamer, 1-4 parts of coupling agent, 5-30 parts of color filler and 5-30 parts of scale filler.
2. The high chemical resistance aqueous tower drum coating according to claim 1, characterized in that: the feed comprises the following raw materials in parts by weight: 2-4 parts of acrylic acid, 20-40 parts of epoxy resin, 0.4-1.2 parts of acrylonitrile, 1-2 parts of acrylamide, 5-7 parts of 2-ethylhexyl acrylate, 20-30 parts of butyl acrylate, 10-30 parts of solvent, 1.2-2.3 parts of initiator, 0.2-0.4 part of thickener, 0.5-2 parts of defoamer, 2-4 parts of coupling agent, 5-20 parts of color filler and 10-30 parts of scale filler.
3. The high chemical resistance aqueous tower drum coating according to claim 1, characterized in that: the feed comprises the following raw materials in parts by weight: 2 parts of acrylic acid, 20 parts of epoxy resin, 0.4 part of acrylonitrile, 1 part of acrylamide, 5 parts of acrylic acid-2-ethylhexyl ester, 20 parts of butyl acrylate, 30 parts of solvent, 1.2 parts of initiator, 0.2 part of thickener, 0.5 part of defoamer, 2 parts of coupling agent, 5 parts of color filler and 10 parts of scale filler.
4. The high chemical resistance aqueous tower drum coating according to claim 1, characterized in that: the color filler is one or more of titanium dioxide, pigment carbon black, scarlet powder or talcum powder, the filler is one of nano glass flakes, stainless steel flakes or mica flakes, and the coupling agent is one of a silane coupling agent and a titanate coupling agent.
5. The high chemical resistance aqueous tower drum coating according to claim 1, characterized in that: the defoaming agent is one of polyether defoaming agent, organic silicon defoaming agent, polyether modified silicon defoaming agent or polysiloxane defoaming agent, and the thickening agent is polyurethane thickening agent.
6. The high chemical resistance aqueous tower drum coating according to claim 1, wherein the solvent is prepared by the following method: adding heavy aromatic hydrocarbon into ethylene glycol monobutyl ether and mixing to obtain the solvent.
7. The high chemical resistance aqueous tower drum coating according to claim 6, characterized in that: the mass ratio of the ethylene glycol monobutyl ether to the heavy aromatic hydrocarbon is 2: 4-1.
8. The high chemical resistance aqueous tower drum coating according to claim 1, wherein the initiator is prepared by the following method: (1) mixing 30% hydrogen peroxide and 30% sodium hydroxide solution to generate sodium peroxide solution; (2) adding a benzamide solution into a sodium peroxide aqueous solution, stirring continuously, cooling generated benzoyl peroxide, and filtering; (3) and recrystallizing and drying benzoyl peroxide by using methanol/chloroform according to the mass ratio of 2:4-2 to obtain the initiator.
9. A method for preparing a high chemical resistance aqueous tower drum coating according to any one of claims 1-8, characterized by comprising the following steps:
s1, mixing 5-10 parts of heavy aromatic hydrocarbon and 10-20 parts of ethylene glycol monobutyl ether to obtain a solvent, adding 10-50 parts of epoxy resin into the solvent, continuously stirring to dilute the epoxy resin to 50%, adding 1-4 parts of acrylamide again at the moment, heating to 70 ℃, and heating for one hour to obtain a mixed resin solution a;
s2, adding 1-4 parts of acrylic acid, 20-40 parts of butyl acrylate, 2-8 parts of acrylic acid-2-ethylhexyl ester and 1/3 mixed resin solution into a stirrer, heating, adding the rest 2/3 mixed resin when the temperature is raised to 90 ℃, heating for 0.5 hour again, adding 1-2 parts of initiator at the moment, heating for one hour, adding the rest 1-2 parts of initiator again, and heating for one hour to obtain mixed resin solution b;
s3, grinding 5-20 parts of nano glass flakes to 20-400 um, pouring 1-4 parts of silane coupling agent to perform surface treatment on the nano glass flakes, standing for 2-4 hours, pouring the treated nano glass flakes, 5-15 parts of titanium dioxide and 5-15 parts of quartz powder into mixed resin solution b, and stirring until the materials are completely mixed to obtain mixed resin solution c;
s4, slowly adding 0.2-0.6 part of thickening agent into the mixed resin solution c, continuously stirring until the mixed solution is appropriate in viscosity, then adding 0.2-0.6 part of defoaming agent, stirring, and standing for 2 hours to obtain the high-chemical-resistance water-based tower coating.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1639286A (en) * | 2002-03-08 | 2005-07-13 | 瓦尔斯帕供应公司 | Coatings having low volatile organic compound content |
| CN110172290A (en) * | 2019-06-06 | 2019-08-27 | 烟台华正科信实业有限公司 | A kind of ship epoxy anticorrosive paint of the Scale filler containing basalt |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1639286A (en) * | 2002-03-08 | 2005-07-13 | 瓦尔斯帕供应公司 | Coatings having low volatile organic compound content |
| CN110172290A (en) * | 2019-06-06 | 2019-08-27 | 烟台华正科信实业有限公司 | A kind of ship epoxy anticorrosive paint of the Scale filler containing basalt |
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