CN116790170A - Water-based primer with rust conversion and rust prevention functions - Google Patents
Water-based primer with rust conversion and rust prevention functions Download PDFInfo
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- CN116790170A CN116790170A CN202310860103.4A CN202310860103A CN116790170A CN 116790170 A CN116790170 A CN 116790170A CN 202310860103 A CN202310860103 A CN 202310860103A CN 116790170 A CN116790170 A CN 116790170A
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- Prior art keywords
- rust
- water
- based primer
- prevention functions
- transfer
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 256
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 174
- 230000002265 prevention Effects 0.000 title claims abstract description 120
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 69
- 238000012546 transfer Methods 0.000 claims abstract description 87
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 50
- 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 37
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 37
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims abstract description 30
- HHLFWLYXYJOTON-UHFFFAOYSA-N glyoxylic acid Chemical compound OC(=O)C=O HHLFWLYXYJOTON-UHFFFAOYSA-N 0.000 claims abstract description 29
- HWSSEYVMGDIFMH-UHFFFAOYSA-N 2-[2-[2-(2-methylprop-2-enoyloxy)ethoxy]ethoxy]ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOCCOCCOC(=O)C(C)=C HWSSEYVMGDIFMH-UHFFFAOYSA-N 0.000 claims abstract description 26
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 17
- PTBDIHRZYDMNKB-UHFFFAOYSA-N 2,2-Bis(hydroxymethyl)propionic acid Chemical compound OCC(C)(CO)C(O)=O PTBDIHRZYDMNKB-UHFFFAOYSA-N 0.000 claims abstract description 15
- 235000014655 lactic acid Nutrition 0.000 claims abstract description 15
- 239000004310 lactic acid Substances 0.000 claims abstract description 15
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims abstract description 13
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000005058 Isophorone diisocyanate Substances 0.000 claims abstract description 12
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims description 58
- 238000007344 nucleophilic reaction Methods 0.000 claims description 48
- 238000006116 polymerization reaction Methods 0.000 claims description 35
- 238000002156 mixing Methods 0.000 claims description 33
- 235000012239 silicon dioxide Nutrition 0.000 claims description 24
- 238000002360 preparation method Methods 0.000 claims description 19
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 12
- 230000035484 reaction time Effects 0.000 claims description 12
- 238000009777 vacuum freeze-drying Methods 0.000 claims description 12
- 229920000877 Melamine resin Polymers 0.000 claims description 11
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims description 11
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 239000003973 paint Substances 0.000 abstract description 33
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 22
- 239000010959 steel Substances 0.000 description 22
- 230000000052 comparative effect Effects 0.000 description 12
- 230000007797 corrosion Effects 0.000 description 10
- 238000005260 corrosion Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- 239000002253 acid Substances 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000003746 surface roughness Effects 0.000 description 4
- 239000002966 varnish Substances 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 150000001450 anions Chemical class 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
-
- 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
Abstract
The application discloses a water-based primer with rust conversion and rust prevention functions, and belongs to the technical field of paint processes. The water-based primer comprises the following raw materials in parts by weight: silica: 40-70 parts of acrylic acid: 22-40 parts of glyoxylate: 10-25 parts of lactic acid: 10-20 parts of 2, 2-dimethylolpropionic acid: 8-16 parts of 2-hydroxyethyl methacrylate: 5-8 parts of triethylene glycol dimethacrylate: 3-12 parts of tetrahydrofuran: 2-6 parts of isophorone diisocyanate: 1-3 parts. The modified water-based primer has the key effect of all components, namely, the modified water-based primer has the basic performance of being used as the water-based primer, namely, the excellent antirust performance, and is particularly suitable for preparing the rust-transfer antirust water-based paint.
Description
Technical Field
The application belongs to the technical field of paint processes, and particularly relates to a water-based primer with rust conversion and rust prevention functions.
Background
Steel is the most common structural material with unstable thermodynamic properties, and corrosion and transformation into loose rust must occur when exposed to the atmosphere. The loss of various metal components and equipment in China caused by corrosion is up to 100-150 hundred million yuan each year, and the metal corrosion can seriously affect national economy and enterprise development, and meanwhile, the metal corrosion also endangers personal safety and causes environmental pollution. One of the key factors of good and bad paint coating quality of the steel structure is rust removal and rust prevention, and rust removal before paint coating belongs to hidden engineering of steel structure construction, and thorough rust removal is an important guarantee for improving the inherent quality of paint. At present, the conventional method for rust removal before coating of steel structure engineering mainly comprises the traditional methods of mechanical shot blasting, sand blasting, manual electric polishing and the like, if residual rust is left on the surface of steel, rust nuclei can cause continuous corrosion of steel substrates, even if the rust removal is very clean, the surface area of new metal is increased, the water absorption amount is increased, and the possibility of corrosion caused by environmental corrosive media is high. In such cases, paint application often does not meet the expected corrosion protection period, and even if constructed with a long-lasting corrosion protection paint system, the rust protection time is thereby greatly compromised. Thus, the paint is protected from corrosion, the key of which is that the conditions for continued rust on the metal surface no longer exist. The acid washing method in the chemical method has a series of advantages of good effect, high efficiency, simple process operation, low cost and the like, and is an important development direction of the existing rust remover. However, the pickling method also has the defects of toxic substances, environmental pollution and repeated cleaning of the workpiece after the rust removal, so that the novel efficient rust removal and rust prevention primer for metals is explored, the novel rust removal technology is researched, and the defects existing in the conventional pickling method are overcome, so that the method is an important work.
Disclosure of Invention
Aiming at the defects existing in the prior art, the application aims to provide the water-based primer with the rust conversion and rust prevention functions, wherein various components in the water-based primer play a key role, and acid substances (weak acids such as lactic acid) in the paint liquid react with rust on the surface of steel to generate other iron-containing compounds, so that the aim of removing rust is fulfilled, and meanwhile, the rust conversion paint rust prevention mechanism is as follows: after the paint film is dried, the film forming matter (the polymerized product of acrylic acid, glyoxalic acid and the like) is not dissolved by water to destroy a stable molecular structure, the molecules and a network structure of the film forming matter (the participation of triethylene glycol dimethacrylate) are required to be compact, the film forming matter has enough shielding property to resist the penetration of water molecules and oxygen into the paint film to protect the contact of the steel surface and moisture and air, and the residual acid value (2, 2-dimethylolpropionic acid) in the paint film is not changed into active anions to participate in the micro-battery reaction in the rust process of the steel.
In order to achieve the above purpose, the present application provides the following technical solutions:
a water-based primer with rust conversion and rust prevention functions,
the adhesive comprises the following raw materials in parts by weight:
the water-based primer with the rust conversion and rust prevention functions comprises the following raw materials in parts by weight:
the water-based primer with the rust conversion and rust prevention functions comprises the following raw materials in parts by weight:
the water-based primer with rust transfer and rust prevention functions,
the particle size of the silicon dioxide is 100-200 um;
the acrylic acid is an acrylic acid mixture with the mixing mass fraction of 12% of lauryl alcohol.
The water-based primer with rust transfer and rust prevention functions,
the triethylene glycol dimethacrylate is prepared from 20% of melamine by mass.
The water-based primer with rust transfer and rust prevention functions,
the preparation method of the water-based primer with the rust conversion and rust prevention functions comprises the following steps:
and (3) stirring and mixing triethylene glycol dimethacrylate and glyoxylic acid for reaction, adding silicon dioxide and acrylic acid, transferring to a high-temperature reaction kettle for nucleophilic reaction, adding lactic acid and 2, 2-dimethylolpropionic acid for polymerization reaction, then dropwise adding 2-hydroxyethyl methacrylate, tetrahydrofuran and isophorone diisocyanate for water bath treatment, and finally, performing vacuum freeze drying to obtain the product.
The water-based primer with rust transfer and rust prevention functions,
wherein the stirring and mixing reaction is as follows:
the stirring speed is 220rpm-260rpm;
the temperature of stirring is 65-75 ℃;
stirring time is 2-6 h.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the nucleophilic reaction is 110-140 ℃;
wherein the nucleophilic reaction time is 8-14 h;
wherein the pressure of nucleophilic reaction is 2MPa-6MPa.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the polymerization reaction is 85-90 ℃;
wherein the polymerization time is 30min-80min.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the water bath is 55-65 ℃;
wherein the time of the water bath is 1h-3h.
Compared with the prior art, the application has the beneficial effects that:
the various components in the water-based primer play a key role, and acidic substances (weak acids such as lactic acid) in the paint liquid react with rust on the surface of steel to generate other iron-containing compounds, so that the aim of rust removal is fulfilled, and meanwhile, the rust-transferring paint rust-preventing mechanism is as follows: after the paint film is dried, the film forming matter (the polymerized product of acrylic acid, glyoxalic acid and the like) is not dissolved by water to destroy a stable molecular structure, the molecules and a network structure of the film forming matter (the participation of triethylene glycol dimethacrylate) are required to be compact, the film forming matter has enough shielding property to resist the penetration of water molecules and oxygen into the paint film to protect the contact of the steel surface and moisture and air, and the residual acid value (2, 2-dimethylolpropionic acid) in the paint film is not changed into active anions to participate in the micro-battery reaction in the rust process of the steel.
Detailed Description
The following describes the technical solutions in the embodiments of the present application in detail, and the described embodiments are only some of the embodiments of the present application. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application. The application is further described below in connection with specific embodiments.
Preparation example 1
A water-based primer with rust conversion and rust prevention functions,
the adhesive comprises the following raw materials in parts by weight:
the water-based primer with rust transfer and rust prevention functions,
the particle size of the silicon dioxide is 100um;
the acrylic acid is an acrylic acid mixture with the mixing mass fraction of 12% of lauryl alcohol.
The water-based primer with rust transfer and rust prevention functions,
the triethylene glycol dimethacrylate is prepared from 20% of melamine by mass.
The water-based primer with rust transfer and rust prevention functions,
the preparation method of the water-based primer with the rust conversion and rust prevention functions comprises the following steps:
and (3) stirring and mixing triethylene glycol dimethacrylate and glyoxylic acid for reaction, adding silicon dioxide and acrylic acid, transferring to a high-temperature reaction kettle for nucleophilic reaction, adding lactic acid and 2, 2-dimethylolpropionic acid for polymerization reaction, then dropwise adding 2-hydroxyethyl methacrylate, tetrahydrofuran and isophorone diisocyanate for water bath treatment, and finally, performing vacuum freeze drying to obtain the product.
The water-based primer with rust transfer and rust prevention functions,
wherein the stirring and mixing reaction is as follows:
the stirring speed is 220rpm;
the temperature of stirring is 75 ℃;
the stirring time was 2h.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the nucleophilic reaction is 110 ℃;
wherein the nucleophilic reaction time is 14h;
wherein the pressure of the nucleophilic reaction is 2MPa.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the polymerization reaction is 85 ℃;
wherein the polymerization time was 80min.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the water bath is 55 ℃;
wherein the time of the water bath is 3 hours.
Preparation example 2
A water-based primer with rust conversion and rust prevention functions,
the adhesive comprises the following raw materials in parts by weight:
the water-based primer with rust transfer and rust prevention functions,
the particle size of the silicon dioxide is 200um;
the acrylic acid is an acrylic acid mixture with the mixing mass fraction of 12% of lauryl alcohol. The water-based primer with rust transfer and rust prevention functions,
the triethylene glycol dimethacrylate is prepared from 20% of melamine by mass.
The water-based primer with rust transfer and rust prevention functions,
the preparation method of the water-based primer with the rust conversion and rust prevention functions comprises the following steps:
and (3) stirring and mixing triethylene glycol dimethacrylate and glyoxylic acid for reaction, adding silicon dioxide and acrylic acid, transferring to a high-temperature reaction kettle for nucleophilic reaction, adding lactic acid and 2, 2-dimethylolpropionic acid for polymerization reaction, then dropwise adding 2-hydroxyethyl methacrylate, tetrahydrofuran and isophorone diisocyanate for water bath treatment, and finally, performing vacuum freeze drying to obtain the product.
The water-based primer with rust transfer and rust prevention functions,
wherein the stirring and mixing reaction is as follows:
the stirring speed is 260rpm;
the temperature of stirring is 65 ℃;
the stirring time was 6h.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the nucleophilic reaction is 140 ℃;
wherein the nucleophilic reaction time is 8 hours;
wherein the pressure of the nucleophilic reaction is 6MPa.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the polymerization reaction is 90 ℃;
wherein the polymerization time was 30min.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the water bath is 65 ℃;
wherein the time of the water bath is 1h.
Preparation example 3
A water-based primer with rust conversion and rust prevention functions,
the adhesive comprises the following raw materials in parts by weight:
the water-based primer with rust transfer and rust prevention functions,
the particle size of the silicon dioxide is 100um;
the acrylic acid is an acrylic acid mixture with the mixing mass fraction of 12% of lauryl alcohol.
The water-based primer with rust transfer and rust prevention functions,
the triethylene glycol dimethacrylate is prepared from 20% of melamine by mass.
The water-based primer with rust transfer and rust prevention functions,
the preparation method of the water-based primer with the rust conversion and rust prevention functions comprises the following steps:
and (3) stirring and mixing triethylene glycol dimethacrylate and glyoxylic acid for reaction, adding silicon dioxide and acrylic acid, transferring to a high-temperature reaction kettle for nucleophilic reaction, adding lactic acid and 2, 2-dimethylolpropionic acid for polymerization reaction, then dropwise adding 2-hydroxyethyl methacrylate, tetrahydrofuran and isophorone diisocyanate for water bath treatment, and finally, performing vacuum freeze drying to obtain the product.
The water-based primer with rust transfer and rust prevention functions,
wherein the stirring and mixing reaction is as follows:
the stirring speed is 220rpm;
the temperature of stirring is 65 ℃;
the stirring time was 2h.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the nucleophilic reaction is 110 ℃;
wherein the nucleophilic reaction time is 8 hours;
wherein the pressure of the nucleophilic reaction is 2MPa.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the polymerization reaction is 85 ℃;
wherein the polymerization time was 30min.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the water bath is 55 ℃;
wherein the time of the water bath is 1h.
Preparation example 4
A water-based primer with rust conversion and rust prevention functions,
the adhesive comprises the following raw materials in parts by weight:
the water-based primer with rust transfer and rust prevention functions,
the particle size of the silicon dioxide is 200um;
the acrylic acid is an acrylic acid mixture with the mixing mass fraction of 12% of lauryl alcohol.
The water-based primer with rust transfer and rust prevention functions,
the triethylene glycol dimethacrylate is prepared from 20% of melamine by mass.
The water-based primer with rust transfer and rust prevention functions,
the preparation method of the water-based primer with the rust conversion and rust prevention functions comprises the following steps:
and (3) stirring and mixing triethylene glycol dimethacrylate and glyoxylic acid for reaction, adding silicon dioxide and acrylic acid, transferring to a high-temperature reaction kettle for nucleophilic reaction, adding lactic acid and 2, 2-dimethylolpropionic acid for polymerization reaction, then dropwise adding 2-hydroxyethyl methacrylate, tetrahydrofuran and isophorone diisocyanate for water bath treatment, and finally, performing vacuum freeze drying to obtain the product.
The water-based primer with rust transfer and rust prevention functions,
wherein the stirring and mixing reaction is as follows:
the stirring speed is 260rpm;
the temperature of stirring is 75 ℃;
the stirring time was 6h.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the nucleophilic reaction is 140 ℃;
wherein the nucleophilic reaction time is 14h;
wherein the pressure of the nucleophilic reaction is 6MPa.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the polymerization reaction is 90 ℃;
wherein the polymerization time was 80min.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the water bath is 65 ℃;
wherein the time of the water bath is 3 hours.
Preparation example 5
A water-based primer with rust conversion and rust prevention functions,
the adhesive comprises the following raw materials in parts by weight:
the water-based primer with rust transfer and rust prevention functions,
the particle size of the silicon dioxide is 100um;
the acrylic acid is an acrylic acid mixture with the mixing mass fraction of 12% of lauryl alcohol.
The water-based primer with rust transfer and rust prevention functions,
the triethylene glycol dimethacrylate is prepared from 20% of melamine by mass.
The water-based primer with rust transfer and rust prevention functions,
the preparation method of the water-based primer with the rust conversion and rust prevention functions comprises the following steps:
and (3) stirring and mixing triethylene glycol dimethacrylate and glyoxylic acid for reaction, adding silicon dioxide and acrylic acid, transferring to a high-temperature reaction kettle for nucleophilic reaction, adding lactic acid and 2, 2-dimethylolpropionic acid for polymerization reaction, then dropwise adding 2-hydroxyethyl methacrylate, tetrahydrofuran and isophorone diisocyanate for water bath treatment, and finally, performing vacuum freeze drying to obtain the product.
The water-based primer with rust transfer and rust prevention functions,
wherein the stirring and mixing reaction is as follows:
the stirring speed is 220rpm;
the temperature of stirring is 65 ℃;
the stirring time was 6h.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the nucleophilic reaction is 140 ℃;
wherein the nucleophilic reaction time is 8 hours;
wherein the pressure of the nucleophilic reaction is 6MPa.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the polymerization reaction is 85 ℃;
wherein the polymerization time was 30min.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the water bath is 65 ℃;
wherein the time of the water bath is 1h.
Comparative example 1
A water-based primer with rust conversion and rust prevention functions,
the adhesive comprises the following raw materials in parts by weight:
the water-based primer with rust transfer and rust prevention functions,
the particle size of the silicon dioxide is 100um.
The water-based primer with rust transfer and rust prevention functions,
the triethylene glycol dimethacrylate is prepared from 20% of melamine by mass.
The water-based primer with rust transfer and rust prevention functions,
the preparation method of the water-based primer with the rust conversion and rust prevention functions comprises the following steps:
adding triethylene glycol dimethacrylate into silicon dioxide, transferring to a high-temperature reaction kettle for nucleophilic reaction, then adding lactic acid and 2, 2-dimethylolpropionic acid for polymerization reaction, then dropwise adding 2-hydroxyethyl methacrylate, tetrahydrofuran and isophorone diisocyanate for water bath treatment, and finally, performing vacuum freeze drying to obtain the product.
The water-based primer with rust transfer and rust prevention functions,
wherein the stirring and mixing reaction is as follows:
the stirring speed is 220rpm;
the temperature of stirring is 65 ℃;
the stirring time was 6h.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the nucleophilic reaction is 140 ℃;
wherein the nucleophilic reaction time is 8 hours;
wherein the pressure of the nucleophilic reaction is 6MPa.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the polymerization reaction is 85 ℃;
wherein the polymerization time was 30min.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the water bath is 65 ℃;
wherein the time of the water bath is 1h.
Comparative example 2
A water-based primer with rust conversion and rust prevention functions,
the adhesive comprises the following raw materials in parts by weight:
the water-based primer with rust transfer and rust prevention functions,
the particle size of the silicon dioxide is 100um;
the acrylic acid is an acrylic acid mixture with the mixing mass fraction of 12% of lauryl alcohol.
The water-based primer with rust transfer and rust prevention functions,
the triethylene glycol dimethacrylate is prepared from 20% of melamine by mass.
The water-based primer with rust transfer and rust prevention functions,
the preparation method of the water-based primer with the rust conversion and rust prevention functions comprises the following steps:
and (3) stirring and mixing triethylene glycol dimethacrylate and glyoxylic acid for reaction, adding silicon dioxide and acrylic acid, transferring to a high-temperature reaction kettle for nucleophilic reaction, adding 2-hydroxyethyl methacrylate, tetrahydrofuran and isophorone diisocyanate, performing water bath treatment, and finally performing vacuum freeze drying to obtain the product.
The water-based primer with rust transfer and rust prevention functions,
wherein the stirring and mixing reaction is as follows:
the stirring speed is 220rpm;
the temperature of stirring is 65 ℃;
the stirring time was 6h.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the nucleophilic reaction is 140 ℃;
wherein the nucleophilic reaction time is 8 hours;
wherein the pressure of the nucleophilic reaction is 6MPa.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the polymerization reaction is 85 ℃;
wherein the polymerization time was 30min.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the water bath is 65 ℃;
wherein the time of the water bath is 1h.
Comparative example 3
A water-based primer with rust conversion and rust prevention functions,
the adhesive comprises the following raw materials in parts by weight:
the water-based primer with rust transfer and rust prevention functions,
the particle size of the silicon dioxide is 100um;
the acrylic acid is an acrylic acid mixture with the mixing mass fraction of 12% of lauryl alcohol.
The water-based primer with rust transfer and rust prevention functions,
the triethylene glycol dimethacrylate is prepared from 20% of melamine by mass.
The water-based primer with rust transfer and rust prevention functions,
the preparation method of the water-based primer with the rust conversion and rust prevention functions comprises the following steps:
and (3) stirring and mixing triethylene glycol dimethacrylate and glyoxylic acid for reaction, adding silicon dioxide and acrylic acid, transferring to a high-temperature reaction kettle for nucleophilic reaction, adding lactic acid and 2, 2-dimethylolpropionic acid for polymerization reaction, then dropwise adding tetrahydrofuran and isophorone diisocyanate for water bath treatment, and finally, performing vacuum freeze drying to obtain the product.
The water-based primer with rust transfer and rust prevention functions,
wherein the stirring and mixing reaction is as follows:
the stirring speed is 220rpm;
the temperature of stirring is 65 ℃;
the stirring time was 6h.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the nucleophilic reaction is 140 ℃;
wherein the nucleophilic reaction time is 8 hours;
wherein the pressure of the nucleophilic reaction is 6MPa.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the polymerization reaction is 85 ℃;
wherein the polymerization time was 30min.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the water bath is 65 ℃;
wherein the time of the water bath is 1h.
Comparative example 4
A water-based primer with rust conversion and rust prevention functions,
the adhesive comprises the following raw materials in parts by weight:
the water-based primer with rust transfer and rust prevention functions,
the particle size of the silicon dioxide is 100um;
the acrylic acid is an acrylic acid mixture with the mixing mass fraction of 12% of lauryl alcohol.
The water-based primer with rust transfer and rust prevention functions,
the preparation method of the water-based primer with the rust conversion and rust prevention functions comprises the following steps:
adding glyoxylic acid into silicon dioxide and acrylic acid, transferring to a high-temperature reaction kettle for nucleophilic reaction, then adding lactic acid and 2, 2-dimethylolpropionic acid for polymerization reaction, then dripping 2-hydroxyethyl methacrylate, tetrahydrofuran and isophorone diisocyanate for water bath treatment, and finally, performing vacuum freeze drying to obtain the product.
The water-based primer with rust transfer and rust prevention functions,
wherein the stirring and mixing reaction is as follows:
the stirring speed is 220rpm;
the temperature of stirring is 65 ℃;
the stirring time was 6h.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the nucleophilic reaction is 140 ℃;
wherein the nucleophilic reaction time is 8 hours;
wherein the pressure of the nucleophilic reaction is 6MPa.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the polymerization reaction is 85 ℃;
wherein the polymerization time was 30min.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the water bath is 65 ℃;
wherein the time of the water bath is 1h.
Comparative example 5
A water-based primer with rust conversion and rust prevention functions,
the adhesive comprises the following raw materials in parts by weight:
the water-based primer with rust transfer and rust prevention functions,
the particle size of the silicon dioxide is 100um;
the acrylic acid is an acrylic acid mixture with the mixing mass fraction of 12% of lauryl alcohol.
The water-based primer with rust transfer and rust prevention functions,
the triethylene glycol dimethacrylate is prepared from 20% of melamine by mass.
The water-based primer with rust transfer and rust prevention functions,
the preparation method of the water-based primer with the rust conversion and rust prevention functions comprises the following steps:
and (3) stirring and mixing triethylene glycol dimethacrylate and glyoxylic acid for reaction, adding silicon dioxide and acrylic acid, transferring to a high-temperature reaction kettle for nucleophilic reaction, adding lactic acid and 2, 2-dimethylolpropionic acid for polymerization reaction, then dropwise adding 2-hydroxyethyl methacrylate and tetrahydrofuran for water bath treatment, and finally, performing vacuum freeze drying to obtain the product.
The water-based primer with rust transfer and rust prevention functions,
wherein the stirring and mixing reaction is as follows:
the stirring speed is 220rpm;
the temperature of stirring is 65 ℃;
the stirring time was 6h.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the nucleophilic reaction is 140 ℃;
wherein the nucleophilic reaction time is 8 hours;
wherein the pressure of the nucleophilic reaction is 6MPa.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the polymerization reaction is 85 ℃;
wherein the polymerization time was 30min.
The water-based primer with rust transfer and rust prevention functions,
wherein the temperature of the water bath is 65 ℃;
wherein the time of the water bath is 1h.
Application examples
The products of preparation examples 1-5 and the products of comparative examples 1-5 were subjected to the following comparative tests:
rust conversion and rust prevention properties
Drying time and impact resistance tests were carried out using tinplate, the pretreatment of which was carried out according to GB/T9271-2008 Standard test panels for color paint and varnish. The test of the cross-hatch, the water resistance, the salt water resistance, the wet heat resistance, the salt fog resistance and the like adopts the stainless steel plate, and the preparation method is as follows: blast-treating a hot rolled steel sheet to GB/T8923.1-2011 section 1, "visual assessment of surface cleanliness of surface treatment of Steel before coating with paint: the surface roughness of the Sa1/2 rust removal grade specified in the rust removal grade and the treatment grade of the uncoated steel surface and the steel surface after the original coating is completely removed reaches the 1 st part of the surface roughness characteristics of the steel after the spraying cleaning of the steel surface treatment before the coating of GB/T13288.1-2008: the method comprises the steps of (1) evaluating the technical requirements and definitions of ISO surface roughness comparison sample blocks of steel surface roughness after spray cleaning, then performing a 7d salt spray test according to GB/T1771-2007 determination of neutral salt spray resistance of colored paint and varnish, taking out, performing a 7d damp-heat test according to GB/T1740-2007 determination of damp-heat resistance of a paint film, taking out a test plate, cleaning floating oil on the surface of the test plate by distilled water, absolute ethyl alcohol and ethyl acetate in sequence, and finally baking for 1h under the condition of (105+/-2).
And uniformly brushing the stainless steel plate surface with a craft brush once, wherein the thickness is respectively kept at 60.0 mu m.
The water resistance, salt spray resistance, liquid medium resistance and adhesion of the paint film were measured with reference to GB/T1733-1993 "determination of water resistance of paint film", GB/T1771-2007, GB/T9274-1988 "determination of liquid medium resistance of paint and varnish", and GB/T9286-1998 "cross-cut test of paint film of paint and varnish", respectively.
The test results were as follows:
corrosion thickness variation: examples 1 to 5 were 58.3 μm, 58.2 μm, 58.9 μm, 59.1 μm, 59.4 μm, respectively, and comparative examples 1 to 5 were 52.5 μm, 48.2 μm, 43.7 μm, 40.6 μm, 37.9 μm, respectively.
Water resistance: examples 1-5 are 96h nonfoaming/nonrusting/nonfalling, respectively, comparative examples 1-5 were 24h nonfoaming/nonrusting/nonfalling, 12h nonfoaming/nonrusting/nonfalling, respectively.
Salt water resistance: examples 1 to 5 were respectively 72h nonfoaming/nonrusting/nonfalling, 96h nonfoaming/nonrusting/nonfalling, and comparative examples 1 to 5 were respectively 12h nonfoaming/nonrusting/nonfalling, 10h nonfoaming/nonrusting/nonfalling, 6h nonfoaming/nonrusting/nonfalling.
Wet heat resistance: examples 1 to 5 were 152h nonfoaming/nonrust/nonfalling, 168h nonfoaming/nonrust/nonfalling, respectively, and comparative examples 1 to 5 were 120h nonfoaming/nonrust/nonfalling, 108h nonfoaming/nonrust/nonfalling, 96h nonfoaming/nonrust/nonfalling, respectively.
Salt spray resistance: examples 1-5 are 360h nonfoaming/nonrusting/nonfalling, respectively, comparative examples 1-5 were 240h nonfoaming/nonrusting/nonfalling, 196h nonfoaming/nonrusting/nonfalling, respectively.
The various components in the water-based primer play a key role, and acidic substances (weak acids such as lactic acid) in the paint liquid react with rust on the surface of steel to generate other iron-containing compounds, so that the aim of rust removal is fulfilled, and meanwhile, the rust-transferring paint rust-preventing mechanism is as follows: after the paint film is dried, the film forming matter (the polymerized product of acrylic acid, glyoxalic acid and the like) is not dissolved by water to destroy a stable molecular structure, the molecules and a network structure of the film forming matter (the participation of triethylene glycol dimethacrylate) are required to be compact, the film forming matter has enough shielding property to resist the penetration of water molecules and oxygen into the paint film to protect the contact of the steel surface and moisture and air, and the residual acid value (2, 2-dimethylolpropionic acid) in the paint film is not changed into active anions to participate in the micro-battery reaction in the rust process of the steel.
The application and its embodiments have been described above by way of illustration and not limitation, and the actual construction is not limited to this. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present application.
Claims (10)
1. A water-based primer with rust transfer and rust prevention functions is characterized in that,
the adhesive comprises the following raw materials in parts by weight:
2. the water-based primer with rust transfer and rust prevention function according to claim 1, which is characterized by comprising the following raw materials in parts by weight:
3. the water-based primer with rust transfer and rust prevention function according to claim 1, which is characterized by comprising the following raw materials in parts by weight:
4. the water-based primer having rust transfer and prevention functions according to claim 1, wherein,
the particle size of the silicon dioxide is 100-200 um;
the acrylic acid is an acrylic acid mixture with the mixing mass fraction of 12% of lauryl alcohol.
5. The water-based primer having rust transfer and prevention functions according to claim 1, wherein,
the triethylene glycol dimethacrylate is prepared from 20% of melamine by mass.
6. The water-based primer having rust transfer and prevention functions according to claim 1, wherein,
the preparation method of the water-based primer with the rust conversion and rust prevention functions comprises the following steps:
and (3) stirring and mixing triethylene glycol dimethacrylate and glyoxylic acid for reaction, adding silicon dioxide and acrylic acid, transferring to a high-temperature reaction kettle for nucleophilic reaction, adding lactic acid and 2, 2-dimethylolpropionic acid for polymerization reaction, then dropwise adding 2-hydroxyethyl methacrylate, tetrahydrofuran and isophorone diisocyanate for water bath treatment, and finally, performing vacuum freeze drying to obtain the product.
7. The water-based primer having rust transfer and prevention functions according to claim 6, wherein,
wherein the stirring and mixing reaction is as follows:
the stirring speed is 220rpm-260rpm;
the temperature of stirring is 65-75 ℃;
stirring time is 2-6 h.
8. The water-based primer having rust transfer and prevention functions according to claim 6, wherein,
wherein the temperature of the nucleophilic reaction is 110-140 ℃;
wherein the nucleophilic reaction time is 8-14 h;
wherein the pressure of nucleophilic reaction is 2MPa-6MPa.
9. The water-based primer having rust transfer and prevention functions according to claim 6, wherein,
wherein the temperature of the polymerization reaction is 85-90 ℃;
wherein the polymerization time is 30min-80min.
10. The water-based primer having rust transfer and prevention functions according to claim 6, wherein,
wherein the temperature of the water bath is 55-65 ℃;
wherein the time of the water bath is 1h-3h.
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Citations (1)
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| CN102408507A (en) * | 2011-09-20 | 2012-04-11 | 上海保立佳化工有限公司 | Auto-rust converting rust-containing corrosion resistant emulsion and preparation method thereof |
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| CN102408507A (en) * | 2011-09-20 | 2012-04-11 | 上海保立佳化工有限公司 | Auto-rust converting rust-containing corrosion resistant emulsion and preparation method thereof |
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