CN112813440A - Water-based cleaning agent for improving coating adhesion force for coating pretreatment and preparation method thereof - Google Patents
Water-based cleaning agent for improving coating adhesion force for coating pretreatment and preparation method thereof Download PDFInfo
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- CN112813440A CN112813440A CN202011638868.6A CN202011638868A CN112813440A CN 112813440 A CN112813440 A CN 112813440A CN 202011638868 A CN202011638868 A CN 202011638868A CN 112813440 A CN112813440 A CN 112813440A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 238000000576 coating method Methods 0.000 title claims abstract description 38
- 239000011248 coating agent Substances 0.000 title claims abstract description 35
- 239000012459 cleaning agent Substances 0.000 title abstract description 11
- 238000002360 preparation method Methods 0.000 title description 6
- 238000002203 pretreatment Methods 0.000 title description 2
- 229910052751 metal Inorganic materials 0.000 claims abstract description 43
- 239000002184 metal Substances 0.000 claims abstract description 43
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 16
- 239000002253 acid Substances 0.000 claims abstract description 14
- 239000006260 foam Substances 0.000 claims abstract description 10
- 239000013556 antirust agent Substances 0.000 claims abstract description 8
- 230000007797 corrosion Effects 0.000 claims abstract description 6
- 238000005260 corrosion Methods 0.000 claims abstract description 6
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 5
- 150000001412 amines Chemical class 0.000 claims abstract description 5
- 239000003112 inhibitor Substances 0.000 claims abstract description 5
- 239000004094 surface-active agent Substances 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 15
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 12
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 9
- 229920000570 polyether Polymers 0.000 claims description 9
- -1 polysiloxane Polymers 0.000 claims description 9
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 claims description 7
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 7
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 7
- 239000012964 benzotriazole Substances 0.000 claims description 7
- 229920001400 block copolymer Polymers 0.000 claims description 7
- 229920001451 polypropylene glycol Polymers 0.000 claims description 7
- LJDSTRZHPWMDPG-UHFFFAOYSA-N 2-(butylamino)ethanol Chemical compound CCCCNCCO LJDSTRZHPWMDPG-UHFFFAOYSA-N 0.000 claims description 6
- YPIFGDQKSSMYHQ-UHFFFAOYSA-N 7,7-dimethyloctanoic acid Chemical compound CC(C)(C)CCCCCC(O)=O YPIFGDQKSSMYHQ-UHFFFAOYSA-N 0.000 claims description 6
- LWBHHRRTOZQPDM-UHFFFAOYSA-N undecanedioic acid Chemical compound OC(=O)CCCCCCCCCC(O)=O LWBHHRRTOZQPDM-UHFFFAOYSA-N 0.000 claims description 6
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 5
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 claims description 5
- QFGCFKJIPBRJGM-UHFFFAOYSA-N 12-[(2-methylpropan-2-yl)oxy]-12-oxododecanoic acid Chemical compound CC(C)(C)OC(=O)CCCCCCCCCCC(O)=O QFGCFKJIPBRJGM-UHFFFAOYSA-N 0.000 claims description 4
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 claims description 4
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims description 4
- GIAFURWZWWWBQT-UHFFFAOYSA-N 2-(2-aminoethoxy)ethanol Chemical compound NCCOCCO GIAFURWZWWWBQT-UHFFFAOYSA-N 0.000 claims description 3
- 229940058020 2-amino-2-methyl-1-propanol Drugs 0.000 claims description 3
- XZOYHFBNQHPJRQ-UHFFFAOYSA-N 7-methyloctanoic acid Chemical compound CC(C)CCCCCC(O)=O XZOYHFBNQHPJRQ-UHFFFAOYSA-N 0.000 claims description 3
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- OEOIWYCWCDBOPA-UHFFFAOYSA-N 6-methyl-heptanoic acid Chemical compound CC(C)CCCCC(O)=O OEOIWYCWCDBOPA-UHFFFAOYSA-N 0.000 claims description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 claims description 2
- 229940043276 diisopropanolamine Drugs 0.000 claims description 2
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000011086 high cleaning Methods 0.000 claims 9
- 150000007513 acids Chemical class 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 239000003973 paint Substances 0.000 abstract description 27
- 239000000843 powder Substances 0.000 abstract description 15
- 239000000853 adhesive Substances 0.000 abstract description 12
- 230000001070 adhesive effect Effects 0.000 abstract description 12
- 230000003749 cleanliness Effects 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 23
- 238000005303 weighing Methods 0.000 description 9
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 238000005238 degreasing Methods 0.000 description 4
- TVIDDXQYHWJXFK-UHFFFAOYSA-N dodecanedioic acid Chemical compound OC(=O)CCCCCCCCCCC(O)=O TVIDDXQYHWJXFK-UHFFFAOYSA-N 0.000 description 4
- 150000002191 fatty alcohols Chemical class 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical compound [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229940102253 isopropanolamine Drugs 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 150000007519 polyprotic acids Polymers 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
- C23G1/063—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors heterocyclic compounds
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
- C23G1/061—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors nitrogen-containing compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to a water-based alkaline metal cleaner with high cleanness and coating adhesion force improvement, which is characterized by being prepared from the following components in percentage by weight: 3-8% of a dibasic acid antirust agent; 20-35% of organic amine; 0.1-0.5% of non-ferrous metal corrosion inhibitor; 5-10% of low-foam organic isomeric short-chain acid; 1-15% of low-foam high-molecular surfactant; 0.1-1.0% of silane coupling agent; 0.1-1.0% of defoaming agent; the balance of water. The water-based alkaline metal cleaning agent provided by the invention can greatly improve the cleanliness of the metal surface, simultaneously improves the adhesive force of coatings such as water-based paint, electrophoretic paint and the like on the metal surface, and reduces the phenomena of shrinkage cavity and powder pit of a powder coating.
Description
Technical Field
The invention relates to a cleaning agent, in particular to a water-based cleaning agent for improving coating adhesion force before coating treatment and a preparation method thereof.
Background
After metal workpieces in the automobile industry and the like are cleaned, paint spraying is required: the water-based paint is sprayed or sprayed with powder primer or electrophoretic primer. (direct water-based primer-topcoat paint for automobile engines and the like, direct powder primer spraying after wheel hubs and the like are cleaned, and electrophoretic primer for automobile bodies and the like) but the water-based paint, the powder primer and the electrophoretic paint have higher requirements on the cleanness of substrates. At present, the cleaning agent in the market generally has the problems of poor cleaning force and residue, is difficult to clean and then is directly sprayed, and water paint or powder coating can be sprayed only by further treatment.
At present, the cleaning procedures of water paint, powder or electrophoretic coating are required to be satisfied: degreasing cleaning, rinsing, clear water cleaning and dry ice cleaning; or degreasing cleaning, rinsing, clear water cleaning, acid washing, clear water cleaning, passivation, clear water cleaning or degreasing cleaning, rinsing, clear water cleaning and manual wiping.
That is, the current products have the following disadvantages:
1. the cleaning force is low, and more surface residues exist;
2. the requirement of the surface of the paint can be met only by further surface treatment, the process is complex and the cost is high;
3. after the workpiece is cleaned and before the workpiece is painted, the workpiece is easy to rust when the storage time is more than 5 days;
4. the water-based alkaline metal cleaning agent on the market generally has the defects of general cleaning capability, insufficient surface cleanliness of workpieces and serious influence on a metal coating process, so that the surface cleanliness of the workpieces is insufficient, the adhesion force of water-based paint and electrophoretic paint on the surface of the metal is poor, and the phenomena of shrinkage cavity and powder pit of powder paint occur.
Disclosure of Invention
The invention aims to overcome the defects and provide a novel high-efficiency metal cleaning agent.
The invention provides a water-based alkaline metal cleaner with high cleanness and coating adhesion force improvement, which is characterized by being prepared from the following components in percentage by weight:
further, the water-based alkaline metal cleaner provided by the invention is high in cleanness and capable of improving the adhesive force of a coating, and is characterized in that: the dibasic acid antirust agent is one or more selected from polybasic acids with carbon atoms not less than 8.
Further, the water-based alkaline metal cleaner provided by the invention is high in cleanness and capable of improving the adhesive force of a coating, and is characterized in that: the dibasic acid antirust agent is one or more selected from dodecanedioic acid, undecanedioic acid and sebacic acid.
Further, the water-based alkaline metal cleaner provided by the invention is high in cleanness and capable of improving the adhesive force of a coating, and is characterized in that: the organic amine is selected from one or more of 2-butylaminoethanol, monoethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine and triisopropanolamine.
Further, the water-based alkaline metal cleaner provided by the invention is high in cleanness and capable of improving the adhesive force of a coating, and is characterized in that: the non-ferrous metal corrosion inhibitor is selected from one or more of 2-amino-2-methyl-1-propanol, diglycolamine and benzotriazole.
Further, the water-based alkaline metal cleaner provided by the invention is high in cleanness and capable of improving the adhesive force of a coating, and is characterized in that: the low-foam organic isomeric short-chain acid is selected from one or more of isooctanoic acid, isononanoic acid and neodecanoic acid.
Further, the water-based alkaline metal cleaner provided by the invention is high in cleanness and capable of improving the adhesive force of a coating, and is characterized in that: the low-foam high-molecular surfactant is selected from one or more of fatty alcohol-polyoxyethylene ether-polyoxypropylene ether block copolymers.
Further, the water-based alkaline metal cleaner provided by the invention is high in cleanness and capable of improving the adhesive force of a coating, and is characterized in that: the silane coupling agent is one or more selected from N-beta- (aminoethyl) -gamma-aminopropyltrimethoxysilane, beta- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane and gamma-aminopropyltrimethoxysilane.
Further, the water-based alkaline metal cleaner provided by the invention is high in cleanness and capable of improving the adhesive force of a coating, and is characterized in that: the defoaming agent is one or more selected from polyether defoaming agent, polyether modified siloxane defoaming agent and polysiloxane defoaming agent.
Further, the water-based alkaline metal cleaner provided by the invention is high in cleanness and capable of improving the adhesive force of a coating, and is characterized in that: the specific manufacturing method is as follows:
s1, mixing a dibasic acid antirust agent, organic amine, a non-ferrous metal corrosion inhibitor and part of water, controlling the temperature to 50 +/-5 ℃, and stirring until the mixture is uniform and transparent;
s2, adding a low-foam organic isomeric short-chain acid, a low-foam high-molecular surfactant and a silane coupling agent, and stirring until the mixture is uniform and transparent;
s3, adding a defoaming agent and the balance of water, and stirring uniformly to obtain a product;
wherein the using amount ratio of the water in the step S1 to the water in the step S3 is 1: 1-10.
The invention has the following functions and effects:
the water-based alkaline metal cleaning agent which is high in cleanness and improves the adhesive force of the coating greatly improves the cleanness of the metal surface, improves the adhesive force of coatings such as water-based paint, electrophoretic paint and the like on the metal surface, and reduces the phenomena of shrinkage and powder pits of the powder coating.
In particular, it has the following advantages:
1. the cleaning force is high, the surface has no residue, and the spraying requirements of water paint, powder coating and electrophoretic paint can be met: surface cleanliness class 2.5.
2. The antirust agent has excellent antirust property (more than 14 days of daily antirust and more than 7 days of rainy season), meets the antirust requirement among the working procedures, and does not need additional antirust treatment. It is especially suitable for carbon steel, cast iron black metal, aluminum and other black metals.
pH value is 8.5-9.0, and it is mild, has no corrosion to copper, aluminum and other non-ferrous metals, and has no discoloration.
4. The product of the invention can simplify the cleaning process (degreasing cleaning-rinsing-clear water cleaning) and does not need other treatments after cleaning. The paint is directly sprayed after cleaning without influence; especially, the water-based paint, the powder paint and the electrophoretic paint with high requirement on surface cleanliness are not influenced.
Drawings
FIG. 1 is a graph showing the comparison of the adhesion force of FD-6281 water paint after cleaning;
FIG. 2 is a graph showing a comparison of adhesion of a powder coating after cleaning;
FIG. 3 is a graph showing the comparison of the electrophoretic coating adhesion after cleaning.
Detailed Description
Example 1 Water-based alkaline Metal cleaner No. 1
The paint is prepared from the following components in parts by weight:
the specific preparation process of the embodiment is as follows:
firstly, weighing 4 parts of undecanedioic acid, 10 parts of pure water, 8 parts of isopropanolamine, 12 parts of triethanolamine, 4 parts of diglycolamine, 3 parts of 2-amino-2-methyl-1-propanol and 0.5 part of benzotriazole with specified amounts, controlling the temperature to 50 +/-5 ℃, and stirring until the mixture is uniform and transparent; secondly, weighing 75451 parts of fatty alcohol vinyl ether polyoxypropylene ether block copolymer CPG, 5 parts of isononanoic acid and 0.5 part of beta- (3, 4-epoxycyclohexyl) ethyl trimethoxy silane in specified amounts on the basis of the first step, and stirring until the mixture is uniform and transparent; and thirdly, weighing 0.5 part of polyether modified polysiloxane defoaming agent with specified amount and the rest pure water based on the second step, and stirring the mixture until the mixture is uniform to obtain a finished product.
The application method of the product comprises the following steps:
s1, cleaning agent: water 5: 95, cleaning the workpiece,
s2, cleaning agent: water 1.5: and 95, rinsing the workpiece.
S3, rinsing the workpiece with clean water
And S4, after cleaning, respectively carrying out FD-6590 water-based paint spraying, powder paint spraying and electrophoretic coating performance testing.
The experimental results are as follows:
example 2 Water-based alkaline Metal cleaner No. 2
The paint is prepared from the following components in parts by weight:
| dodecanedioic acid | 8.0％ |
| Triethanolamine | 5.0％ |
| Monoisopropanolamine | 5.0％ |
| Ethanolamine | 5.0％ |
| 2-butylaminoethanol | 5.0％ |
| Benzotriazole | 0.1％ |
| Neodecanoic acid | 10％ |
| Aliphatic alcohol vinyl ether polyoxypropylene ether block copolymer CPG7545 | 10％ |
| Beta- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane | 0.1％ |
| Polyether defoaming agent | 1％ |
| Water (W) | Balance of |
The specific preparation process of the embodiment is as follows:
weighing specified amount of dodecanedioic acid, 10% pure water, monoisopropanolamine, triethanolamine, monoethanolamine, 2-butylaminoethanol and benzotriazole, controlling the temperature to be 50 +/-5 ℃, and stirring until the mixture is uniform and transparent; secondly, weighing specified amounts of fatty alcohol vinyl ether polyoxypropylene ether block copolymer CPG7545, neodecanoic acid and beta- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane on the basis of the first step, and stirring until the mixture is uniform and transparent; and thirdly, weighing the polyether defoaming agent and the residual pure water in specified amounts on the basis of the second step, and stirring the materials until the materials are uniform to obtain a finished product.
Example 3 Water-based alkaline Metal cleaner No. 3
The paint is prepared from the following components in parts by weight:
| dodecanedioic acid | 3.0％ |
| Triethanolamine | 15.0％ |
| Monoisopropanolamine | 15.0％ |
| 2-butylaminoethanol | 5.0％ |
| Benzotriazole | 0.5％ |
| Neodecanoic acid | 5％ |
| Fatty alcohol vinyl ether polyoxypropylene ether block copolymer | 15％ |
| Gamma-aminopropyltrimethoxysilane | 1％ |
| Polyether defoaming agent | 0.1％ |
| Water (W) | Balance of |
The specific preparation process of the embodiment is as follows:
firstly, weighing specified amount of dodecanedioic acid, 25% pure water, monoisopropanolamine, triethanolamine, 2-butylaminoethanol and benzotriazole, controlling the temperature to be 50 +/-5 ℃, and stirring until the mixture is uniform and transparent; secondly, weighing specified amounts of fatty alcohol vinyl ether polyoxypropylene ether block copolymer, neodecanoic acid and gamma-aminopropyltrimethoxysilane on the basis of the first step, and stirring until the mixture is uniform and transparent; and thirdly, weighing the polyether defoaming agent and the residual pure water in specified amounts on the basis of the second step, and stirring the materials until the materials are uniform to obtain a finished product.
Claims (10)
1. The water-based alkaline metal cleaner is characterized by being prepared from the following components in percentage by weight:
2. the water-based alkaline metal cleaner for high cleaning and improving the adhesion of a coating as claimed in claim 1, wherein:
the dibasic acid antirust agent is one or more selected from dibasic acids with the carbon atom number not less than 8.
3. The water-based alkaline metal cleaner for high cleaning and improving the adhesion of a coating as claimed in claim 1, wherein:
the dibasic acid antirust agent is selected from one or more of dodecanedioic acid, undecanedioic acid and sebacic acid.
4. The water-based alkaline metal cleaner for high cleaning and improving the adhesion of a coating as claimed in claim 1, wherein:
the organic amine is selected from one or more of 2-butylaminoethanol, monoethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine and triisopropanolamine.
5. The water-based alkaline metal cleaner for high cleaning and improving the adhesion of a coating as claimed in claim 1, wherein:
the non-ferrous metal corrosion inhibitor is selected from one or more of 2-amino-2-methyl-1-propanol, diglycolamine and benzotriazole.
6. The water-based alkaline metal cleaner for high cleaning and improving the adhesion of a coating as claimed in claim 1, wherein:
the low-foam organic isomeric short-chain acid is selected from one or more of isooctanoic acid, isononanoic acid and neodecanoic acid.
7. The water-based alkaline metal cleaner for high cleaning and improving the adhesion of a coating as claimed in claim 1, wherein:
the low-foam high-molecular surfactant is selected from one or more of fatty alcohol-polyoxyethylene ether-polyoxypropylene ether block copolymers.
8. The water-based alkaline metal cleaner for high cleaning and improving the adhesion of a coating as claimed in claim 1, wherein:
the silane coupling agent is selected from one or more of N-beta- (aminoethyl) -gamma-aminopropyltrimethoxysilane, beta- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane and gamma-aminopropyltrimethoxysilane.
9. The water-based alkaline metal cleaner for high cleaning and improving the adhesion of a coating as claimed in claim 1, wherein:
the defoaming agent is one or more selected from polyether defoaming agent, polyether modified siloxane defoaming agent and polysiloxane defoaming agent.
10. The water-based alkaline metal cleaner for high cleaning and improving the adhesion of a coating as claimed in claim 1, which is prepared by the following steps:
s1, mixing a dibasic acid antirust agent, organic amine, a non-ferrous metal corrosion inhibitor and part of water, controlling the temperature to 50 +/-5 ℃, and stirring until the mixture is uniform and transparent;
s2, adding a low-foam organic isomeric short-chain acid, a low-foam high-molecular surfactant and a silane coupling agent, and stirring until the mixture is uniform and transparent;
s3, adding a defoaming agent and the balance of water, and stirring uniformly to obtain a product;
wherein the using amount ratio of the water in the step S1 to the water in the step S3 is 1: 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011638868.6A CN112813440A (en) | 2020-12-31 | 2020-12-31 | Water-based cleaning agent for improving coating adhesion force for coating pretreatment and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011638868.6A CN112813440A (en) | 2020-12-31 | 2020-12-31 | Water-based cleaning agent for improving coating adhesion force for coating pretreatment and preparation method thereof |
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| CN112813440A true CN112813440A (en) | 2021-05-18 |
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| CN202011638868.6A Pending CN112813440A (en) | 2020-12-31 | 2020-12-31 | Water-based cleaning agent for improving coating adhesion force for coating pretreatment and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115161648A (en) * | 2022-07-19 | 2022-10-11 | 重庆信人科技发展有限公司 | Ultrahigh-pressure aluminum part cleaning agent and preparation method and application thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN111041498A (en) * | 2018-10-12 | 2020-04-21 | 南京明仁光电科技有限公司 | Non-phosphorus water-based degreasing agent used before non-phosphorus coating |
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| CN115161648A (en) * | 2022-07-19 | 2022-10-11 | 重庆信人科技发展有限公司 | Ultrahigh-pressure aluminum part cleaning agent and preparation method and application thereof |
| CN115161648B (en) * | 2022-07-19 | 2024-06-14 | 重庆信人科技发展有限公司 | Ultrahigh-pressure aluminum part cleaning agent and preparation method and application thereof |
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