CN114702873A - Normal-temperature self-drying single-component water-based acrylic coating and preparation method thereof - Google Patents
Normal-temperature self-drying single-component water-based acrylic coating and preparation method thereof Download PDFInfo
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- CN114702873A CN114702873A CN202210214946.2A CN202210214946A CN114702873A CN 114702873 A CN114702873 A CN 114702873A CN 202210214946 A CN202210214946 A CN 202210214946A CN 114702873 A CN114702873 A CN 114702873A
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- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 title claims abstract description 97
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 238000000576 coating method Methods 0.000 title claims abstract description 53
- 239000011248 coating agent Substances 0.000 title claims abstract description 52
- 238000001035 drying Methods 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 229920000180 alkyd Polymers 0.000 claims abstract description 48
- 239000000839 emulsion Substances 0.000 claims abstract description 42
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- ZYMKZMDQUPCXRP-UHFFFAOYSA-N fluoro prop-2-enoate Chemical compound FOC(=O)C=C ZYMKZMDQUPCXRP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 26
- 150000002221 fluorine Chemical class 0.000 claims abstract description 22
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims abstract description 19
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000012153 distilled water Substances 0.000 claims abstract description 16
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims abstract description 14
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims abstract description 12
- -1 polyoxyethylene Polymers 0.000 claims abstract description 12
- 230000004048 modification Effects 0.000 claims abstract description 11
- 238000012986 modification Methods 0.000 claims abstract description 11
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 10
- 239000011737 fluorine Substances 0.000 claims abstract description 10
- 239000000178 monomer Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 238000000227 grinding Methods 0.000 claims description 59
- 238000005303 weighing Methods 0.000 claims description 30
- 238000010438 heat treatment Methods 0.000 claims description 19
- 239000003973 paint Substances 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 13
- TYCFGHUTYSLISP-UHFFFAOYSA-N 2-fluoroprop-2-enoic acid Chemical compound OC(=O)C(F)=C TYCFGHUTYSLISP-UHFFFAOYSA-N 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 239000002562 thickening agent Substances 0.000 claims description 8
- 239000000049 pigment Substances 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 7
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000011265 semifinished product Substances 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 9
- QWYSJTTWCUXHQO-UHFFFAOYSA-N [F].OC(=O)C=C Chemical compound [F].OC(=O)C=C QWYSJTTWCUXHQO-UHFFFAOYSA-N 0.000 description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229920002681 hypalon Polymers 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 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
- C09D133/10—Homopolymers or copolymers of methacrylic acid esters
- C09D133/12—Homopolymers or copolymers of methyl methacrylate
-
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention relates to a normal-temperature self-drying single-component water-based acrylic coating and a preparation method thereof, wherein the coating is prepared from the following raw materials in parts by weight: 15-25 parts of fluoroacrylate, 10-20 parts of alkylphenol polyoxyethylene, 15-25 parts of sodium dodecyl sulfate, 40-50 parts of methyl methacrylate, 10-20 parts of butyl acrylate, 5-10 parts of ammonium persulfate, 10-16 parts of nano titanium dioxide, 20-30 parts of alkyd resin, 40-60 parts of distilled water and 10-20 parts of auxiliary agent; according to the invention, the water-based fluorine-containing acrylic emulsion is prepared by using the fluoroacrylate, and then the acrylic monomer is subjected to composite grafting modification by using the alkyd resin to synthesize the water-based alkyd modified fluorine-containing acrylic emulsion, so that the acrylic coating is prepared by using the nano titanium dioxide on the basis of the water-based alkyd modified fluorine-containing acrylic emulsion, the hydrophobicity, stain resistance, coating gloss and hardness of the acrylic coating are increased, the application range of the acrylic coating is further increased, and the service life of the acrylic coating is prolonged.
Description
Technical Field
The invention relates to a normal-temperature self-drying single-component water-based acrylic coating and a preparation method thereof, belonging to the technical field of acrylic coatings.
Background
The acrylic coating is a single-component self-drying weather-resistant anticorrosive coating prepared by adding Chinese and foreign recognized long-life chlorosulfonated polyethylene rubber, weather-resistant pigment and filler, weather-resistant additive and the like on the basis of the traditional acrylic resin through an advanced process, and is suitable for anticorrosive coating of metal and nonmetal surfaces of automobiles, ships, mechanical equipment, mines, excavation, metallurgy, chemical engineering, furniture, instruments and meters, building interior and exterior walls, terraces, metal products, outdoor advertisements, guardrails and the like;
when the traditional acrylic coating is used, the acrylic coating is generally single in performance and poor in hydrophobicity, stain resistance, coating glossiness and hardness, so that the application range of the acrylic coating is influenced, and the service life is short.
Disclosure of Invention
The invention aims to provide a normal-temperature self-drying single-component water-based acrylic coating and a preparation method thereof, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the normal-temperature self-drying single-component water-based acrylic coating is prepared from the following raw materials in parts by weight: 15-25 parts of fluoroacrylate, 10-20 parts of alkylphenol polyoxyethylene, 15-25 parts of sodium dodecyl sulfate, 40-50 parts of methyl methacrylate, 10-20 parts of butyl acrylate, 5-10 parts of ammonium persulfate, 10-16 parts of nano titanium dioxide, 20-30 parts of alkyd resin, 40-60 parts of distilled water and 10-20 parts of auxiliary agent.
A preparation method of a normal-temperature self-drying single-component water-based acrylic coating comprises the following steps:
s1, weighing alkylphenol polyoxyethylene, sodium dodecyl sulfate, methyl methacrylate, butyl acrylate and ammonium persulfate according to the proportion, and adding into the stirrer.
S2, weighing distilled water according to a proportion, adding the distilled water into a stirrer, and heating the solution in the stirrer at the heating temperature of 50-70 ℃ for 30-90 minutes;
s3, weighing fluoroacrylate according to a proportion, dropwise adding the fluoroacrylate into a stirrer through a dropping funnel, heating the temperature in the stirrer to 70-80 ℃, and cooling to obtain the aqueous fluoroacrylic acid emulsion;
s4, weighing the alkyd resin according to the proportion, adding the alkyd resin into the water-based fluorine-containing acrylic emulsion, and quickly stirring the mixture by a stirrer at the stirring speed of 2000-4000r/min to obtain the water-based alkyd modified fluorine-containing acrylic emulsion;
S5, adding the waterborne alkyd modified fluorine-containing acrylic emulsion into a grinding tank, weighing nano titanium dioxide, an auxiliary agent and a pigment according to a proportion, and adding into the grinding tank;
s6, grinding and dispersing the paint through a grinding machine in the grinding tank, wherein the rotating speed of the grinding machine is 3000-4000r/min, and thus a paint semi-finished product is obtained;
s7, weighing the auxiliary agent according to the proportion, adding the auxiliary agent into a grinding tank for grinding and crushing, wherein the rotation speed of a grinding machine is 1000-3000r/min, and obtaining the single-component water-based acrylic coating.
Further preferably: in the S1, the rotation speed of the stirrer is 1000-2000r/min, and the alkylphenol polyoxyethylene, the sodium dodecyl sulfate, the methyl methacrylate, the butyl acrylate and the ammonium persulfate are mixed by the stirrer.
Further preferably: in S2, the solution in the mixer is quickly fused by heating the liquid in the mixer.
Further preferably: and in the S3, dripping fluoroacrylate into a stirrer through a dropping funnel, and mixing the fluoroacrylate with the solution to obtain the aqueous fluoroacrylic acid emulsion.
Further preferably: in the S4, acrylic monomers and alkyd resin are subjected to composite grafting modification to synthesize the aqueous alkyd modified fluorine-containing acrylic emulsion.
Further preferred is: and in the S6, grinding and dispersing work is carried out through a sand grinder, and the grinding fineness is 0.2-0.3 mm.
Further preferred is: in S7, the auxiliary agent is a thickening agent and a film forming agent.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the acrylic coating is prepared by preparing the water-based fluorine-containing acrylic emulsion from the fluoroacrylate and then carrying out composite grafting modification on the acrylic monomer through the alkyd resin, so that the water-based alkyd modified fluorine-containing acrylic emulsion is synthesized, and the acrylic coating is prepared by using the nano titanium dioxide on the basis of the water-based alkyd modified fluorine-containing acrylic emulsion, so that the hydrophobicity, the stain resistance, the coating glossiness and the hardness of the acrylic coating are increased, the application range of the acrylic coating is further improved, and the service life of the acrylic coating is prolonged.
Drawings
FIG. 1 is a flow chart of the steps of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, the present invention provides a technical solution: the normal-temperature self-drying single-component water-based acrylic coating is prepared from the following raw materials in parts by weight: 15 parts of fluoroacrylate, 10 parts of alkylphenol polyoxyethylene, 15 parts of sodium dodecyl sulfate, 40 parts of methyl methacrylate, 10 parts of butyl acrylate, 5 parts of ammonium persulfate, 10 parts of nano titanium dioxide, 20 parts of alkyd resin, 40 parts of distilled water and 10 parts of assistant.
A preparation method of a normal-temperature self-drying single-component water-based acrylic paint comprises the following steps:
s1, weighing alkylphenol polyoxyethylene, sodium dodecyl sulfate, methyl methacrylate, butyl acrylate and ammonium persulfate according to the proportion, and adding into the stirrer.
S2, weighing distilled water according to a proportion, adding the distilled water into a stirrer, and heating the solution in the stirrer at 50 ℃ for 30 minutes;
s3, weighing fluoroacrylate according to a proportion, dropwise adding the fluoroacrylate into a stirrer through a dropping funnel, heating the temperature in the stirrer to 70 ℃, and cooling to obtain the aqueous fluoroacrylic acid emulsion;
s4, weighing the alkyd resin according to the proportion, adding the alkyd resin into the water-based fluorine-containing acrylic emulsion, and quickly stirring the mixture by a stirrer at a stirring speed of 2000r/min to obtain the water-based alkyd modified fluorine-containing acrylic emulsion;
S5, adding the waterborne alkyd modified fluorine-containing acrylic emulsion into a grinding tank, weighing nano titanium dioxide, an auxiliary agent and a pigment according to a proportion, and adding into the grinding tank;
s6, grinding and dispersing through a grinding machine in the grinding tank, wherein the rotating speed of the grinding machine is 3000r/min, and thus a semi-finished paint product is obtained;
s7, weighing the auxiliary agent according to the proportion, adding the auxiliary agent into a grinding tank for grinding and crushing, wherein the rotating speed of a grinding machine is 1000r/min, and obtaining the single-component water-based acrylic coating.
In this embodiment, specifically: in S1, the rotation speed of the stirrer is 1000r/min, and alkylphenol polyoxyethylene ether, sodium dodecyl sulfate, methyl methacrylate, butyl acrylate and ammonium persulfate are mixed by the stirrer; mixing and stirring alkylphenol ethoxylates, lauryl sodium sulfate, methyl methacrylate, butyl acrylate and ammonium persulfate by a stirrer.
In this embodiment, specifically: in S2, the liquid in the stirrer is heated, so that the solution in the stirrer can be quickly fused; the liquid in the mixer is rapidly fused by heating.
In this embodiment, specifically: in S3, dripping fluoroacrylate into a stirrer through a dropping funnel, and mixing fluoroacrylate with the solution to obtain a water-based fluoroacrylic acid emulsion; the water-based fluorine-containing acrylic emulsion is prepared by the fluorine acrylate, so that the hydrophobicity and the stain resistance of the acrylic coating are improved.
In this embodiment, specifically: in S4, acrylic monomers and alkyd resin are subjected to composite grafting modification to synthesize aqueous alkyd modified fluorine-containing acrylic emulsion; the acrylic acid monomer is subjected to composite grafting modification by the alkyd resin, so that the adhesiveness, the wear resistance and the solvent resistance of the acrylic acid coating are improved, and the application range of the acrylic acid coating is widened.
In this embodiment, specifically: in S6, grinding and dispersing work is carried out through a sand grinder, and the grinding fineness is 0.2 mm; and grinding the raw material of the acrylic coating by a sand grinder.
In this embodiment, specifically: in S7, the auxiliary agent is a thickening agent and a film-forming agent; the acrylic acid coating is prepared from the waterborne alkyd modified fluorine-containing acrylic acid emulsion by using a thickening agent and a film-forming agent as auxiliaries.
Example two
Referring to fig. 1, the present invention provides a technical solution: the normal-temperature self-drying single-component water-based acrylic coating is prepared from the following raw materials in parts by weight: 20 parts of fluoroacrylate, 15 parts of alkylphenol polyoxyethylene, 20 parts of sodium dodecyl sulfate, 45 parts of methyl methacrylate, 15 parts of butyl acrylate, 7 parts of ammonium persulfate, 13 parts of nano titanium dioxide, 25 parts of alkyd resin, 50 parts of distilled water and 15 parts of auxiliary agent.
A preparation method of a normal-temperature self-drying single-component water-based acrylic paint comprises the following steps:
s1, weighing alkylphenol polyoxyethylene, sodium dodecyl sulfate, methyl methacrylate, butyl acrylate and ammonium persulfate according to the proportion, and adding into a stirrer.
S2, weighing distilled water according to a proportion, adding the distilled water into a stirrer, and heating the solution in the stirrer at the heating temperature of 60 ℃ for 60 minutes;
s3, weighing fluoroacrylate according to a proportion, dropwise adding the fluoroacrylate into a stirrer through a dropping funnel, heating the temperature in the stirrer to 75 ℃, and cooling to obtain the aqueous fluoroacrylic acid emulsion;
s4, weighing alkyd resin according to a proportion, adding the alkyd resin into the water-based fluorine-containing acrylic emulsion, and quickly stirring the mixture by a stirrer at a stirring speed of 3000r/min to obtain the water-based alkyd modified fluorine-containing acrylic emulsion;
s5, adding the waterborne alkyd modified fluorine-containing acrylic emulsion into a grinding tank, weighing nano titanium dioxide, an auxiliary agent and a pigment according to a proportion, and adding into the grinding tank;
s6, grinding and dispersing through a grinding machine in the grinding tank, wherein the rotating speed of the grinding machine is 3500r/min, and thus a paint semi-finished product is obtained;
s7, weighing the auxiliary agent according to the proportion, adding the auxiliary agent into a grinding tank for grinding and crushing, wherein the rotating speed of a grinding machine is 2000r/min, and obtaining the single-component water-based acrylic coating.
In this embodiment, specifically: in S1, mixing alkylphenol polyoxyethylene ether, lauryl sodium sulfate, methyl methacrylate, butyl acrylate and ammonium persulfate through a stirrer at the rotating speed of 1500 r/min; mixing and stirring alkylphenol ethoxylates, lauryl sodium sulfate, methyl methacrylate, butyl acrylate and ammonium persulfate through a stirrer.
In this embodiment, specifically: in S2, the solution in the stirrer can be quickly fused by heating the liquid in the stirrer; the liquid in the stirrer is quickly fused by heating.
In this embodiment, specifically: in S3, dripping fluoroacrylate into a stirrer through a dropping funnel, and mixing fluoroacrylate with the solution to obtain aqueous fluoroacrylic acid emulsion; the water-based fluorine-containing acrylic emulsion is prepared by the fluorine acrylate, so that the hydrophobicity and the stain resistance of the acrylic coating are improved.
In this embodiment, specifically: in S4, acrylic monomers and alkyd resin are subjected to composite grafting modification to synthesize aqueous alkyd modified fluorine-containing acrylic emulsion; the acrylic monomer is subjected to composite grafting modification by the alkyd resin, so that the adhesiveness, wear resistance and solvent resistance of the acrylic coating are improved, and the application range of the acrylic coating is widened.
In this embodiment, specifically: in S6, grinding and dispersing work is carried out through a sand grinder, and the grinding fineness is 0.25 mm; and grinding the raw material of the acrylic coating by a sand grinder.
In this embodiment, specifically: in S7, the auxiliary agent is a thickening agent and a film-forming agent; the acrylic acid coating is prepared from the waterborne alkyd modified fluorine-containing acrylic acid emulsion by using a thickening agent and a film-forming agent as auxiliaries.
EXAMPLE III
Referring to fig. 1, the present invention provides a technical solution: the normal-temperature self-drying single-component water-based acrylic coating is prepared from the following raw materials in parts by weight: 25 parts of fluoroacrylate, 20 parts of alkylphenol polyoxyethylene, 25 parts of sodium dodecyl sulfate, 50 parts of methyl methacrylate, 20 parts of butyl acrylate, 10 parts of ammonium persulfate, 16 parts of nano titanium dioxide, 30 parts of alkyd resin, 60 parts of distilled water and 20 parts of auxiliary agent.
A preparation method of a normal-temperature self-drying single-component water-based acrylic coating comprises the following steps:
s1, weighing alkylphenol polyoxyethylene, sodium dodecyl sulfate, methyl methacrylate, butyl acrylate and ammonium persulfate according to the proportion, and adding into the stirrer.
S2, weighing distilled water according to a proportion, adding the distilled water into a stirrer, and heating the solution in the stirrer at 70 ℃ for 90 minutes;
S3, weighing fluoroacrylate according to a proportion, dropwise adding the fluoroacrylate into a stirrer through a dropping funnel, heating the temperature in the stirrer to 80 ℃, and cooling to obtain the aqueous fluoroacrylic acid emulsion;
s4, weighing alkyd resin according to a proportion, adding the alkyd resin into the water-based fluorine-containing acrylic emulsion, and quickly stirring the mixture by a stirrer at a stirring speed of 4000r/min to obtain water-based alkyd modified fluorine-containing acrylic emulsion;
s5, adding the waterborne alkyd modified fluorine-containing acrylic emulsion into a grinding tank, weighing nano titanium dioxide, an auxiliary agent and a pigment according to a proportion, and adding the nano titanium dioxide, the auxiliary agent and the pigment into the grinding tank;
s6, grinding and dispersing through a grinding machine in the grinding tank, wherein the rotating speed of the grinding machine is 4000r/min, and a semi-finished paint product is obtained;
s7, weighing the auxiliary agent according to the proportion, adding the auxiliary agent into a grinding tank for grinding and crushing, wherein the rotating speed of a grinding machine is 3000r/min, and obtaining the single-component water-based acrylic coating.
In this embodiment, specifically: in S1, the rotating speed of the stirrer is 2000r/min, and alkylphenol polyoxyethylene ether, sodium dodecyl sulfate, methyl methacrylate, butyl acrylate and ammonium persulfate are mixed by the stirrer; mixing and stirring alkylphenol ethoxylates, lauryl sodium sulfate, methyl methacrylate, butyl acrylate and ammonium persulfate by a stirrer.
In this embodiment, specifically: in S2, the liquid in the stirrer is heated, so that the solution in the stirrer can be quickly fused; the liquid in the mixer is rapidly fused by heating.
In this embodiment, specifically: in S3, dripping fluoroacrylate into a stirrer through a dropping funnel, and mixing fluoroacrylate with the solution to obtain a water-based fluoroacrylic acid emulsion; the water-based fluorine-containing acrylic emulsion is prepared by the fluorine acrylate, so that the hydrophobicity and the stain resistance of the acrylic coating are improved.
In this embodiment, specifically: in S4, acrylic monomers and alkyd resin are subjected to composite grafting modification to synthesize aqueous alkyd modified fluorine-containing acrylic emulsion; the acrylic monomer is subjected to composite grafting modification by the alkyd resin, so that the adhesiveness, wear resistance and solvent resistance of the acrylic coating are improved, and the application range of the acrylic coating is widened.
In this embodiment, specifically: in S6, grinding and dispersing work is carried out through a sand grinder, and the grinding fineness is 0.3 mm; and grinding the raw material of the acrylic coating by a grinding machine.
In this embodiment, specifically: in S7, the auxiliary agent is a thickening agent and a film-forming agent; the acrylic acid coating is prepared from the waterborne alkyd modified fluorine-containing acrylic acid emulsion by using a thickening agent and a film-forming agent as auxiliaries.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A normal temperature self-drying single-component water-based acrylic coating is characterized by comprising the following raw materials,
the raw materials comprise the following components in parts by weight: 15-25 parts of fluoroacrylate, 10-20 parts of alkylphenol polyoxyethylene, 15-25 parts of sodium dodecyl sulfate, 40-50 parts of methyl methacrylate, 10-20 parts of butyl acrylate, 5-10 parts of ammonium persulfate, 10-16 parts of nano titanium dioxide, 20-30 parts of alkyd resin, 40-60 parts of distilled water and 10-20 parts of auxiliary agent.
2. A preparation method of a normal-temperature self-drying single-component water-based acrylic coating comprises the following steps:
s1, weighing alkylphenol ethoxylates, lauryl sodium sulfate, methyl methacrylate, butyl acrylate and ammonium persulfate according to the proportion, and adding into a stirrer;
s2, weighing distilled water according to a proportion, adding the distilled water into a stirrer, and heating the solution in the stirrer at the heating temperature of 50-70 ℃ for 30-90 minutes;
S3, weighing fluoroacrylate according to a proportion, dropwise adding the fluoroacrylate into a stirrer through a dropping funnel, heating the temperature in the stirrer to 70-80 ℃, and cooling to obtain the aqueous fluoroacrylate emulsion;
s4, weighing the alkyd resin according to the proportion, adding the alkyd resin into the water-based fluorine-containing acrylic emulsion, and quickly stirring the mixture by a stirrer at the stirring speed of 2000-4000r/min to obtain the water-based alkyd modified fluorine-containing acrylic emulsion;
s5, adding the waterborne alkyd modified fluorine-containing acrylic emulsion into a grinding tank, weighing nano titanium dioxide, an auxiliary agent and a pigment according to a proportion, and adding into the grinding tank;
s6, grinding and dispersing the paint through a grinding machine in the grinding tank, wherein the rotating speed of the grinding machine is 3000-4000r/min, and thus a paint semi-finished product is obtained;
s7, weighing the auxiliary agent according to the proportion, adding the auxiliary agent into a grinding tank for grinding and crushing, wherein the rotating speed of a grinding machine is 1000-3000r/min, and obtaining the single-component water-based acrylic coating.
3. The preparation method of the room-temperature self-drying single-component water-based acrylic paint as claimed in claim 2, wherein the preparation method comprises the following steps: in the S1, the rotation speed of the stirrer is 1000-2000r/min, and the alkylphenol polyoxyethylene, the sodium dodecyl sulfate, the methyl methacrylate, the butyl acrylate and the ammonium persulfate are mixed by the stirrer.
4. The method for preparing room temperature self-drying type single-component water-based acrylic paint as claimed in claim 2, wherein the method comprises the following steps: in S2, the solution in the mixer is rapidly fused by heating the liquid in the mixer.
5. The method for preparing room temperature self-drying type single-component water-based acrylic paint as claimed in claim 2, wherein the method comprises the following steps: and in the S3, dripping fluoroacrylate into a stirrer through a dropping funnel, and mixing the fluoroacrylate with the solution to obtain the aqueous fluoroacrylic acid emulsion.
6. The preparation method of the room-temperature self-drying single-component water-based acrylic paint as claimed in claim 2, wherein the preparation method comprises the following steps: in the S4, acrylic monomers and alkyd resin are subjected to composite grafting modification to synthesize the aqueous alkyd modified fluorine-containing acrylic emulsion.
7. The preparation method of the room-temperature self-drying single-component water-based acrylic paint as claimed in claim 2, wherein the preparation method comprises the following steps: and in the S6, grinding and dispersing work is carried out through a sand grinder, and the grinding fineness is 0.2-0.3 mm.
8. The preparation method of the room-temperature self-drying single-component water-based acrylic paint as claimed in claim 2, wherein the preparation method comprises the following steps: in S7, the auxiliary agent is a thickening agent and a film forming agent.
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