CN116285544A - Preparation method of environment-friendly quick-drying water-based protective paint - Google Patents
Preparation method of environment-friendly quick-drying water-based protective paint Download PDFInfo
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- CN116285544A CN116285544A CN202211571938.XA CN202211571938A CN116285544A CN 116285544 A CN116285544 A CN 116285544A CN 202211571938 A CN202211571938 A CN 202211571938A CN 116285544 A CN116285544 A CN 116285544A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 239000002519 antifouling agent Substances 0.000 title claims abstract description 47
- 238000001035 drying Methods 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 33
- 238000002156 mixing Methods 0.000 claims abstract description 39
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 26
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 26
- 239000000178 monomer Substances 0.000 claims abstract description 22
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000049 pigment Substances 0.000 claims abstract description 21
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 20
- IAXXETNIOYFMLW-COPLHBTASA-N [(1s,3s,4s)-4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl] 2-methylprop-2-enoate Chemical compound C1C[C@]2(C)[C@@H](OC(=O)C(=C)C)C[C@H]1C2(C)C IAXXETNIOYFMLW-COPLHBTASA-N 0.000 claims abstract description 10
- OIWOHHBRDFKZNC-UHFFFAOYSA-N cyclohexyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1CCCCC1 OIWOHHBRDFKZNC-UHFFFAOYSA-N 0.000 claims abstract description 10
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229940119545 isobornyl methacrylate Drugs 0.000 claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 239000011259 mixed solution Substances 0.000 claims description 42
- 238000003756 stirring Methods 0.000 claims description 25
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 16
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical compound CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000008367 deionised water Substances 0.000 claims description 13
- 229910021641 deionized water Inorganic materials 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 claims description 12
- 239000002270 dispersing agent Substances 0.000 claims description 11
- 239000000945 filler Substances 0.000 claims description 11
- 239000002562 thickening agent Substances 0.000 claims description 11
- 239000000080 wetting agent Substances 0.000 claims description 11
- 239000002518 antifoaming agent Substances 0.000 claims description 10
- 239000000706 filtrate Substances 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000003112 inhibitor Substances 0.000 claims description 9
- MOUPNEIJQCETIW-UHFFFAOYSA-N lead chromate Chemical compound [Pb+2].[O-][Cr]([O-])(=O)=O MOUPNEIJQCETIW-UHFFFAOYSA-N 0.000 claims description 9
- 229910052712 strontium Inorganic materials 0.000 claims description 9
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 9
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical class [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 claims description 9
- 239000004606 Fillers/Extenders Substances 0.000 claims description 8
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 7
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 7
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 7
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 7
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 claims description 7
- -1 glycidyl ester Chemical group 0.000 claims description 7
- 239000012752 auxiliary agent Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- CUVLMZNMSPJDON-UHFFFAOYSA-N 1-(1-butoxypropan-2-yloxy)propan-2-ol Chemical compound CCCCOCC(C)OCC(C)O CUVLMZNMSPJDON-UHFFFAOYSA-N 0.000 claims description 5
- CUDYYMUUJHLCGZ-UHFFFAOYSA-N 2-(2-methoxypropoxy)propan-1-ol Chemical compound COC(C)COC(C)CO CUDYYMUUJHLCGZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000005995 Aluminium silicate Substances 0.000 claims description 5
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 claims description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical group [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 5
- 235000012211 aluminium silicate Nutrition 0.000 claims description 5
- 150000001412 amines Chemical group 0.000 claims description 5
- 239000011324 bead Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 238000009775 high-speed stirring Methods 0.000 claims description 5
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 5
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 5
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 5
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical group OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 5
- 230000002401 inhibitory effect Effects 0.000 claims description 5
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical group O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 5
- 230000002572 peristaltic effect Effects 0.000 claims description 5
- 229910052700 potassium Inorganic materials 0.000 claims description 5
- 239000011591 potassium Substances 0.000 claims description 5
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 5
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 5
- UEEJHVSXFDXPFK-UHFFFAOYSA-O N-dimethylethanolamine Chemical compound C[NH+](C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-O 0.000 claims description 2
- 239000003973 paint Substances 0.000 abstract description 11
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 239000012855 volatile organic compound Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009439 industrial construction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 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
- 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
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/062—Copolymers with monomers not covered by C09D133/06
- C09D133/068—Copolymers with monomers not covered by C09D133/06 containing glycidyl groups
-
- 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
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
- C09D5/084—Inorganic compounds
-
- 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
-
- 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
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/328—Phosphates of heavy metals
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention provides a preparation method of an environment-friendly quick-drying water-based protective paint. The preparation method of the environment-friendly quick-drying water-based protective paint comprises the following steps: preparing modified acrylic resin, preparing film forming additive, preparing antirust pigment, mixing for the first time, mixing for the second time, and regulating the PH value. According to the invention, the acrylic resin is modified by four functional monomers of glycidyl methacrylate, isobornyl methacrylate, cyclohexyl methacrylate and styrene, so that the performances of a paint film of the protective paint in aspects of glossiness, mechanical property, protection and the like can be improved.
Description
Technical Field
The invention belongs to the technical field of paint, and particularly relates to a preparation method of environment-friendly quick-drying water-based protective paint.
Background
Along with the orderly promotion of the industrialization process of China, the large-scale industrial construction brings great economic benefit for people and simultaneously causes great pollution to the environment of China. In the industrial construction process, a large amount of steel structure materials are used as main base materials of industrial equipment, and phenomena such as friction and abrasion, oxidation, corrosion and the like can occur in the use process, so that a large amount of non-renewable resources such as metals and the like are seriously wasted. In order to ensure the safety of industrial equipment and improve the service life, the most common method is to cover a protective layer on the surface of the equipment so as to play a role in corrosion prevention and protection. In recent years, with the increasing importance of the national environmental pollution problem, solving the negative influence of industrial production on the environment becomes the problem that must be faced by the industrial development of China. Therefore, high-performance energy-saving emission-reducing environment-friendly protective coating and coating technology, and reduction of Volatile Organic Compound (VOC) content in production and construction are always one of important development directions and targets of modern coatings.
Traditional paint mainly uses organic substances as a dispersion medium, but contains more volatile organic solvents (VOC) and can cause certain threat to the surrounding environment and human health. Compared with the organic solvent type paint, the water paint is a paint product which takes water as a main solvent, can reduce the emission of VOC and can save resources and energy. However, most of the water-based paint on the current market has the problems of long film forming drying time, low hardness, poor wear resistance and water resistance, and the like, is easy to crack and fall off, and cannot well meet the use requirements.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a preparation method of environment-friendly quick-drying water-based protective paint.
The preparation method of the environment-friendly quick-drying water-based protective paint comprises the following steps:
s1: preparation of modified acrylic resin
Mixing propylene glycol butyl ether, tertiary glycidyl ester functional monomer, methyl methacrylate, butyl acrylate, hydroxyethyl methacrylate, methacrylic acid, tert-butyl peroxybenzoate, propylene glycol butyl ether, N-dimethylethanolamine and deionized water to obtain modified acrylic resin;
s2: preparation of film-forming auxiliaries
Uniformly mixing dipropylene glycol butyl ether and dipropylene glycol methyl ether according to a ratio of 2:1 to obtain a film forming agent;
s3: preparation of rust inhibitive pigment
Uniformly mixing the modified zinc phosphate and strontium chrome yellow according to a ratio of 4:2 to obtain an antirust pigment;
s4: first mixing
Adding 5-10 parts of deionized water, 1-1.5 parts of dispersing agent and 0.1-0.25 part of defoaming agent into a reaction container to obtain mixed solution I, dispersing the mixed solution I by using a dispersing machine, controlling the rotating speed to be 400-600r/min, controlling the time to be 2-3min, sequentially adding 10-25 parts of extender filler and 6-10 parts of antirust pigment, sequentially dispersing uniformly at 600r/min, adding glass beads, grinding for 1-2h by introducing water at 2500-3000r/min, filtering by using a screen with 200-400 meshes, and separating filtrate and filter residue;
s5: second mixing
Adding the filtrate obtained in the step S5 into 55-60 parts of modified acrylic resin, uniformly dispersing by using a dispersing machine at the rotating speed of 500-680r/min for 4-5min, and sequentially adding 4-6 parts of film forming auxiliary agent, 0.2-0.5 part of wetting agent, 0.4-1.2 parts of anti-flash rust agent and 0.2-0.5 part of thickener, and dispersing for 3-5min at the rotating speed of 500-680r/min to obtain a mixed solution II;
s6: adjusting pH
And (3) regulating the pH value of the mixed solution II to be more than 8.5 by using 0.3-0.8 part of pH regulator, and filtering by using a screen with 200-400 meshes to obtain the environment-friendly quick-drying water-based protective paint.
Further, the functional monomers in the steps S1.1 and S1.2 are formed by mixing glycidyl methacrylate, isobornyl methacrylate, cyclohexyl methacrylate and styrene according to a ratio of 1:1:1:1.
Further, the preparation of the modified acrylic resin in the step S1 specifically includes the following steps:
s1.1: pouring 40-50 parts of propylene glycol butyl ether, 4-6 parts of tertiary glycidyl ester and 3-5 parts of functional monomer into a three-neck flask, uniformly stirring to obtain a mixture A, and heating the flask to 140 ℃ in an oil bath;
s1.2: uniformly mixing 5-10 parts of methyl methacrylate, 5-10 parts of butyl acrylate, 5-10 parts of hydroxyethyl methacrylate, 5-10 parts of methacrylic acid, 50-80 parts of tert-butyl peroxybenzoate and 7-16 parts of functional monomers to obtain a mixture B,
s1.3: slowly dripping the mixture B into a three-neck flask by adopting a peristaltic pump for 3-4h, and preserving heat for 1-1.5h after dripping;
s1.4: mixing 5-10 parts of tert-butyl peroxybenzoate with 15-20 parts of propylene glycol butyl ether, uniformly stirring, and equally dividing the mixed solution into 2 parts to obtain a mixed solution C1 and a mixed solution 2;
s1.5: slowly dripping the mixed solution C1 into a three-neck flask, and continuously preserving heat for 40-50min;
s1.6: slowly dripping the mixed solution C2 into a three-neck flask, heating to 145-155 ℃, and preserving heat for 40-50min;
s1.7: slowly dripping 15-35 parts of N, N-dimethylethanolamine into the three-neck flask under a rapid stirring state, and rapidly stirring for 30-45min;
s1.8: adding 30-50 parts of deionized water into a three-neck flask under a high-speed stirring state, and stirring at a high speed for 30-45min to obtain the modified acrylic resin.
Further, the dispersant is the Pick chemical BYK-190.
Further, the defoamer is potassium tripolyphosphate.
Further, the physical filler is kaolin.
Further, the wetting agent is Dynol604.
Further, the flash rust inhibitor is FA-179.
Further, the thickener is hydroxypropyl methylcellulose.
Further, the PH adjuster is an amine neutralizer.
Compared with the prior art, the invention has the advantages that:
1. the environment-friendly quick-drying water-based protective paint is prepared by modifying acrylic resin through four functional monomers of glycidyl methacrylate, isobornyl methacrylate, cyclohexyl methacrylate and styrene, so that the performance of a paint film of the protective paint in the aspects of glossiness, mechanical property, protection and the like can be improved.
2. The environment-friendly quick-drying water-based protective paint prepared by the invention has improved corrosion resistance by adding the rust-proof pigment prepared by the modified zinc phosphate and the strontium chrome yellow.
3. In the preparation process of the environment-friendly quick-drying water-based protective paint, the dispersing agent, the defoaming agent, the constitution filler, the rust-proof pigment and the deionized water are uniformly mixed, then the mixture is added into the modified acrylic resin, and finally the film forming auxiliary agent, the wetting agent, the flash rust inhibitor and the thickening agent are added, so that the environment-friendly quick-drying water-based protective paint is uniformly stirred, and the hardness, the water resistance and the wear resistance of the environment-friendly quick-drying water-based protective paint can be further improved.
Drawings
FIG. 1 is a flow chart of a preparation method of an environment-friendly quick-drying water-based protective paint used in an embodiment of the invention.
FIG. 2 is a diagram of the material ratios of the environment-friendly quick-drying water-based protective paint used in the embodiment of the invention.
FIG. 3 is a graph of various performance data of an environmentally friendly quick-drying waterborne protective paint used in an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
Example 1
The preparation method of the environment-friendly quick-drying water-based protective paint, as shown in fig. 1 and 2, comprises the following steps:
s1: preparation of modified acrylic resin
Pouring 45 parts of propylene glycol butyl ether, 5 parts of tertiary glycidyl ester and 4 parts of functional monomer into a three-neck flask, stirring uniformly to obtain a mixture A, placing the flask into an oil bath, heating the flask to 140 ℃, uniformly mixing 6 parts of methyl methacrylate, 8 parts of butyl acrylate, 5 parts of hydroxyethyl methacrylate, 7 parts of methacrylic acid, 60 parts of tert-butyl peroxybenzoate and 10 parts of functional monomer to obtain a mixture B, mixing the functional monomer consisting of glycidyl methacrylate, isobornyl methacrylate, cyclohexyl methacrylate and styrene according to a ratio of 1:1:1, slowly dropwise adding the mixture B into the three-neck flask by adopting a peristaltic pump for 3.5h, preserving heat for 1h after dropwise adding, mixing 8 parts of tert-butyl peroxybenzoate with 18 parts of propylene glycol butyl ether, uniformly stirring, namely uniformly dividing the mixed solution into 2 parts to obtain mixed solution C1 and mixed solution C2, slowly dripping the mixed solution C1 into a three-neck flask, continuously preserving heat for 40-50min, slowly dripping the mixed solution C2 into the three-neck flask, heating to 145-155 ℃, preserving heat for 45min, slowly dripping 26 parts of N, N-dimethylethanolamine into the three-neck flask in a rapid stirring state, rapidly stirring for 45min, adding 45 parts of deionized water into the three-neck flask in a high-speed stirring state, and stirring at a high speed for 30min to obtain modified acrylic resin, and modifying the acrylic resin by four functional monomers of glycidyl methacrylate, isobornyl methacrylate, cyclohexyl methacrylate and styrene, so that the performances of a paint film of the protective paint in the aspects of glossiness, mechanical property, protectiveness and the like can be improved;
s2: preparation of film-forming auxiliaries
Uniformly mixing dipropylene glycol butyl ether and dipropylene glycol methyl ether according to a ratio of 2:1 to obtain a film forming agent;
s3: preparation of rust inhibitive pigment
Uniformly mixing the modified zinc phosphate and strontium chrome yellow according to a ratio of 4:2 to obtain an antirust pigment;
s4: first mixing
Adding 8 parts of deionized water, 1 part of dispersing agent and 0.15 part of defoaming agent into a reaction container to obtain mixed liquid I, wherein the dispersing agent is Pick chemical BYK-190, the defoaming agent is potassium tripolyphosphate, dispersing the mixed liquid I by using a dispersing machine, controlling the rotating speed to 460r/min, and the time to 2min, sequentially adding 12 parts of extender filler and 8 parts of antirust pigment, wherein the extender filler is kaolin, and the prepared environment-friendly quick-drying water-based protective paint has improved corrosion resistance by adding the antirust pigment prepared by modified zinc phosphate and strontium chrome yellow, dispersing uniformly in sequence at 600r/min, adding glass beads, grinding for 1.5h by introducing water at 2500r/min, filtering by using a 260-mesh gauze, and separating filtrate and filter residues;
s5: second mixing
Adding the filtrate obtained in the step S5 into 58 parts of modified acrylic resin, uniformly dispersing by using a dispersing machine at the rotating speed of 600r/min for 4-5min, and sequentially adding 5 parts of film forming auxiliary agent, 0.2 part of wetting agent, 0.6 part of flash rust inhibitor and 0.4 part of thickening agent, wherein the wetting agent is Dynol604, the flash rust inhibitor is FA-179, the thickening agent is hydroxypropyl methyl cellulose, and dispersing for 3min at the rotating speed of 600r/min to obtain a mixed solution II;
s6: adjusting pH
And (3) regulating the pH value of the mixed solution II to be more than 8.5 by using 0.4 part of pH regulator, wherein the pH regulator is an amine neutralizer, and filtering the mixed solution by using a screen with 260 meshes to obtain the environment-friendly quick-drying water-based protective paint.
The performance data of the obtained environment-friendly quick-drying water-based protective paint is shown in figure 3 through the steps of the preparation method of the environment-friendly quick-drying water-based protective paint.
Example 2
The preparation method of the environment-friendly quick-drying water-based protective paint, as shown in fig. 1 and 2, comprises the following steps:
s1: preparation of modified acrylic resin
Pouring 45 parts of propylene glycol butyl ether, 5 parts of tertiary glycidyl ester and 4 parts of functional monomer into a three-neck flask, stirring uniformly to obtain a mixture A, placing the flask into an oil bath, heating the flask to 140 ℃, uniformly mixing 6 parts of methyl methacrylate, 8 parts of butyl acrylate, 5 parts of hydroxyethyl methacrylate, 7 parts of methacrylic acid, 60 parts of tert-butyl peroxybenzoate and 10 parts of functional monomer to obtain a mixture B, mixing the functional monomer consisting of glycidyl methacrylate, isobornyl methacrylate, cyclohexyl methacrylate and styrene according to a ratio of 1:1:1, slowly dropwise adding the mixture B into the three-neck flask by adopting a peristaltic pump for 3.5h, preserving heat for 1h after dropwise adding, mixing 8 parts of tert-butyl peroxybenzoate with 18 parts of propylene glycol butyl ether, uniformly stirring, namely uniformly dividing the mixed solution into 2 parts to obtain mixed solution C1 and mixed solution C2, slowly dripping the mixed solution C1 into a three-neck flask, continuously preserving heat for 40-50min, slowly dripping the mixed solution C2 into the three-neck flask, heating to 145-155 ℃, preserving heat for 45min, slowly dripping 26 parts of N, N-dimethylethanolamine into the three-neck flask in a rapid stirring state, rapidly stirring for 45min, adding 45 parts of deionized water into the three-neck flask in a high-speed stirring state, and stirring at a high speed for 30min to obtain modified acrylic resin, and modifying the acrylic resin by four functional monomers of glycidyl methacrylate, isobornyl methacrylate, cyclohexyl methacrylate and styrene, so that the performances of a paint film of the protective paint in the aspects of glossiness, mechanical property, protectiveness and the like can be improved;
s2: preparation of film-forming auxiliaries
Uniformly mixing dipropylene glycol butyl ether and dipropylene glycol methyl ether according to a ratio of 2:1 to obtain a film forming agent;
s3: preparation of rust inhibitive pigment
Uniformly mixing the modified zinc phosphate and strontium chrome yellow according to a ratio of 4:2 to obtain an antirust pigment;
s4: first mixing
Adding 8 parts of deionized water, 1.2 parts of dispersing agent and 0.2 part of defoaming agent into a reaction container to obtain mixed liquor I, wherein the dispersing agent is Pick chemical BYK-190, the defoaming agent is potassium tripolyphosphate, dispersing the mixed liquor I by using a dispersing machine, controlling the rotating speed to 460r/min, and the time to 2min, sequentially adding 18 parts of extender filler and 6 parts of antirust pigment, wherein the extender filler is kaolin, and sequentially adding the antirust pigment prepared by modified zinc phosphate and strontium chrome yellow, so that the corrosion resistance of the prepared environment-friendly quick-drying water-based protective paint is improved, sequentially and uniformly dispersing at 600r/min, adding glass beads, introducing water at 2500r/min, grinding for 1.5h, filtering by using a 260-mesh gauze, and separating filtrate and filter residues;
s5: second mixing
Adding the filtrate obtained in the step S5 into 56 parts of modified acrylic resin, uniformly dispersing by using a dispersing machine at the rotating speed of 600r/min for 4-5min, and sequentially adding 5 parts of film forming auxiliary agent, 0.35 part of wetting agent, 0.8 part of flash rust inhibitor and 0.3 part of thickening agent, wherein the wetting agent is Dynol604, the flash rust inhibitor is FA-179, the thickening agent is hydroxypropyl methyl cellulose, and dispersing for 3min at the rotating speed of 600r/min to obtain a mixed solution II;
s6: adjusting pH
And (3) regulating the pH value of the mixed solution II to be more than 8.5 by using 0.5 part of pH regulator, wherein the pH regulator is an amine neutralizer, and filtering the mixed solution by using a screen with 260 meshes to obtain the environment-friendly quick-drying water-based protective paint.
The performance data of the obtained environment-friendly quick-drying water-based protective paint is shown in figure 3 through the steps of the preparation method of the environment-friendly quick-drying water-based protective paint.
Example 3
The preparation method of the environment-friendly quick-drying water-based protective paint, as shown in fig. 1 and 2, comprises the following steps:
s1: preparation of modified acrylic resin
Pouring 45 parts of propylene glycol butyl ether, 5 parts of tertiary glycidyl ester and 4 parts of functional monomer into a three-neck flask, stirring uniformly to obtain a mixture A, placing the flask into an oil bath, heating the flask to 140 ℃, uniformly mixing 6 parts of methyl methacrylate, 8 parts of butyl acrylate, 5 parts of hydroxyethyl methacrylate, 7 parts of methacrylic acid, 60 parts of tert-butyl peroxybenzoate and 10 parts of functional monomer to obtain a mixture B, mixing the functional monomer consisting of glycidyl methacrylate, isobornyl methacrylate, cyclohexyl methacrylate and styrene according to a ratio of 1:1:1, slowly dropwise adding the mixture B into the three-neck flask by adopting a peristaltic pump for 3.5h, preserving heat for 1h after dropwise adding, mixing 8 parts of tert-butyl peroxybenzoate with 18 parts of propylene glycol butyl ether, uniformly stirring, namely uniformly dividing the mixed solution into 2 parts to obtain mixed solution C1 and mixed solution C2, slowly dripping the mixed solution C1 into a three-neck flask, continuously preserving heat for 40-50min, slowly dripping the mixed solution C2 into the three-neck flask, heating to 145-155 ℃, preserving heat for 45min, slowly dripping 26 parts of N, N-dimethylethanolamine into the three-neck flask in a rapid stirring state, rapidly stirring for 45min, adding 45 parts of deionized water into the three-neck flask in a high-speed stirring state, and stirring at a high speed for 30min to obtain modified acrylic resin, and modifying the acrylic resin by four functional monomers of glycidyl methacrylate, isobornyl methacrylate, cyclohexyl methacrylate and styrene, so that the performances of a paint film of the protective paint in the aspects of glossiness, mechanical property, protectiveness and the like can be improved;
s2: preparation of film-forming auxiliaries
Uniformly mixing dipropylene glycol butyl ether and dipropylene glycol methyl ether according to a ratio of 2:1 to obtain a film forming agent;
s3: preparation of rust inhibitive pigment
Uniformly mixing the modified zinc phosphate and strontium chrome yellow according to a ratio of 4:2 to obtain an antirust pigment;
s4: first mixing
Adding 8 parts of deionized water, 1.4 parts of dispersing agent and 0.25 part of defoaming agent into a reaction container to obtain mixed liquor I, wherein the dispersing agent is Pick chemical BYK-190, the defoaming agent is potassium tripolyphosphate, dispersing the mixed liquor I by using a dispersing machine, controlling the rotating speed to 460r/min for 2min, sequentially adding 22 parts of extender filler and 10 parts of antirust pigment, wherein the extender filler is kaolin, and sequentially adding the modified zinc phosphate and the antirust pigment prepared from strontium chrome yellow to improve the corrosion resistance of the prepared environment-friendly quick-drying water-based protective paint, dispersing uniformly in sequence at 600r/min, adding glass beads, introducing water at 2500r/min, grinding for 1-2h, filtering by using a 260-mesh gauze, and separating filtrate and filter residues;
s5: second mixing
Adding the filtrate obtained in the step S5 into 60 parts of modified acrylic resin, uniformly dispersing by using a dispersing machine at the rotating speed of 600r/min for 4-5min, and sequentially adding 6 parts of film forming auxiliary agent, 0.5 part of wetting agent, 1 part of flash rust inhibitor and 0.5 part of thickening agent, wherein the wetting agent is Dynol604, the flash rust inhibitor is FA-179, the thickening agent is hydroxypropyl methylcellulose, and dispersing for 3min at the rotating speed of 600r/min to obtain a mixed solution II;
s6: adjusting pH
And (3) regulating the pH value of the mixed solution II to be more than 8.5 by using 0.6 part of pH regulator, wherein the pH regulator is an amine neutralizer, and filtering the mixed solution by using a screen with 260 meshes to obtain the environment-friendly quick-drying water-based protective paint.
The performance data of the obtained environment-friendly quick-drying water-based protective paint is shown in figure 3 through the steps of the preparation method of the environment-friendly quick-drying water-based protective paint.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. The preparation method of the environment-friendly quick-drying water-based protective paint is characterized by comprising the following steps of:
s1: preparation of modified acrylic resin
Propylene glycol butyl ether, tertiary glycidyl ester functional monomer, methyl methacrylate, butyl acrylate, hydroxyethyl methacrylate, methacrylic acid, tert-butyl peroxybenzoate, propylene glycol butyl ether and N,
mixing N-dimethylethanolamine and deionized water to obtain modified acrylic resin;
s2: preparation of film-forming auxiliaries
Uniformly mixing dipropylene glycol butyl ether and dipropylene glycol methyl ether according to a ratio of 2:1 to obtain a film forming agent;
s3: preparation of rust inhibitive pigment
Uniformly mixing the modified zinc phosphate and strontium chrome yellow according to a ratio of 4:2 to obtain an antirust pigment;
s4: first mixing
Adding 5-10 parts of deionized water, 1-1.5 parts of dispersing agent and 0.1-0.25 part of defoaming agent into a reaction container to obtain mixed solution I, dispersing the mixed solution I by using a dispersing machine, controlling the rotating speed to be 400-600r/min, controlling the time to be 2-3min, sequentially adding 10-25 parts of extender filler and 6-10 parts of antirust pigment, sequentially dispersing uniformly at 600r/min, adding glass beads, grinding for 1-2h by introducing water at 2500-3000r/min, filtering by using a screen with 200-400 meshes, and separating filtrate and filter residue;
s5: second mixing
Adding the filtrate obtained in the step S5 into 55-60 parts of modified acrylic resin, uniformly dispersing by using a dispersing machine at the rotating speed of 500-680r/min for 4-5min, and sequentially adding 4-6 parts of film forming auxiliary agent, 0.2-0.5 part of wetting agent, 0.4-1.2 parts of anti-flash rust agent and 0.2-0.5 part of thickener, and dispersing for 3-5min at the rotating speed of 500-680r/min to obtain a mixed solution II;
s6: adjusting pH
And (3) regulating the pH value of the mixed solution II to be more than 8.5 by using 0.3-0.8 part of pH regulator, and filtering by using a screen with 200-400 meshes to obtain the environment-friendly quick-drying water-based protective paint.
2. The method for preparing the environment-friendly quick-drying water-based protective paint according to claim 1, wherein the preparation of the modified acrylic resin in the step S1 comprises the following steps:
s1.1: pouring 40-50 parts of propylene glycol butyl ether, 4-6 parts of tertiary glycidyl ester and 3-5 parts of functional monomer into a three-neck flask, uniformly stirring to obtain a mixture A, and heating the flask to 140 ℃ in an oil bath;
s1.2: uniformly mixing 5-10 parts of methyl methacrylate, 5-10 parts of butyl acrylate, 5-10 parts of hydroxyethyl methacrylate, 5-10 parts of methacrylic acid, 50-80 parts of tert-butyl peroxybenzoate and 7-16 parts of functional monomers to obtain a mixture B,
s1.3: slowly dripping the mixture B into a three-neck flask by adopting a peristaltic pump for 3-4h, and preserving heat for 1-1.5h after dripping;
s1.4: mixing 5-10 parts of tert-butyl peroxybenzoate with 15-20 parts of propylene glycol butyl ether, uniformly stirring, and equally dividing the mixed solution into 2 parts to obtain a mixed solution C1 and a mixed solution 2;
s1.5: slowly dripping the mixed solution C1 into a three-neck flask, and continuously preserving heat for 40-50min;
s1.6: slowly dripping the mixed solution C2 into a three-neck flask, heating to 145-155 ℃, and preserving heat for 40-50min;
s1.7: slowly dripping 15-35 parts of N, N-dimethylethanolamine into the three-neck flask under a rapid stirring state, and rapidly stirring for 30-45min;
s1.8: adding 30-50 parts of deionized water into a three-neck flask under a high-speed stirring state, and stirring at a high speed for 30-45min to obtain the modified acrylic resin.
3. The method for preparing the environment-friendly quick-drying water-based protective paint according to claim 2, wherein the functional monomers in the steps S1.1 and S1.2 are formed by mixing glycidyl methacrylate, isobornyl methacrylate, cyclohexyl methacrylate and styrene according to a ratio of 1:1:1:1.
4. The method for preparing the environment-friendly quick-drying water-based protective paint according to claim 1, wherein the dispersing agent is Pick chemical BYK-190.
5. The method for preparing the environment-friendly quick-drying water-based protective paint according to claim 1, wherein the defoaming agent is potassium tripolyphosphate.
6. The method for preparing the environment-friendly quick-drying water-based protective paint according to claim 1, wherein the physical filler is kaolin.
7. The method for preparing the environment-friendly quick-drying water-based protective paint according to claim 1, wherein the wetting agent is Dynol604.
8. The method for preparing the environment-friendly quick-drying water-based protective paint according to claim 1, wherein the flash rust inhibitor is FA-179.
9. The method for preparing the environment-friendly quick-drying water-based protective paint according to claim 1, wherein the thickener is hydroxypropyl methylcellulose.
10. The method for preparing an environmentally friendly quick-drying water-based protective paint according to claim 1, wherein the PH regulator is an amine neutralizer.
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