CN113930117B - Simple construction artistic coating and preparation method thereof - Google Patents
Simple construction artistic coating and preparation method thereof Download PDFInfo
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- CN113930117B CN113930117B CN202111219028.0A CN202111219028A CN113930117B CN 113930117 B CN113930117 B CN 113930117B CN 202111219028 A CN202111219028 A CN 202111219028A CN 113930117 B CN113930117 B CN 113930117B
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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
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- 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
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
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Abstract
The invention discloses a simple construction artistic paint and a preparation method thereof, wherein the simple construction artistic paint comprises 20-40% by weight of acrylic copolymer emulsion, the acrylic copolymer emulsion comprises 40-60% by weight of acrylic resin, and the acrylic resin is prepared by polymerizing acrylic acid, methyl acrylate, s-triazine derivatives and 6-amino-1, 2-benzisothiazole-3-ketone according to the molar ratio of 1:2-5:0.2-0.5: 0.5-0.8. The simple construction artistic coating has high hardness, excellent mildew resistance, strong three-dimensional layering and lasting mildew resistance.
Description
Technical Field
The invention belongs to the field of art coatings, and particularly relates to a simple construction art coating and a preparation method thereof.
Background
Corrosion and mildew are inevitable problems in the natural environment, and how to effectively prevent corrosive substances and mildew from harming people is a problem which is eagerly solved.
In the building industry, the outer walls of buildings are mostly concrete and reinforced concrete, after a period of use, the concrete is mildewed due to the fact that the concrete directly contacts air and water, bacteria in the air and the water can cause the concrete to be corroded due to acid, salt and alkali. The coating on the outer layer of the building can beautify the outer wall structure of the building, effectively improve the corrosion resistance, mildew resistance and durability of the building structure in various corrosive media, and reduce the local repair work of the building structure.
S-triazine is an alkaline preservative, has strong inhibition and killing effects on various gram-positive or gram-negative bacteria, mold and yeast, is used in a large amount in the fields of papermaking, paint adhesion, oil fields and the like, but has slow sterilization efficiency, is difficult to achieve the effect of quick sterilization, and has poor corrosion resistance under an acidic condition.
Disclosure of Invention
Aiming at the defects in the prior art, the simple construction artistic coating is high in hardness, excellent in mildew resistance and strong in three-dimensional layering sense, and has lasting corrosion and mildew resistance under both acidic and alkaline conditions.
The invention aims to provide a simple construction artistic paint, which comprises 20-40 wt% of acrylic copolymer emulsion, wherein the acrylic copolymer emulsion comprises 40-60 wt% of acrylic resin, and the acrylic resin is prepared by polymerizing acrylic acid, methyl acrylate, s-triazine derivative and 6-amino-1, 2-benzisothiazole-3-ketone according to the molar ratio of 1:2-5:0.2-0.5: 0.5-0.8;
the structure of the s-triazine derivative is shown as follows:
the structure of the 6-amino-1, 2-benzisothiazol-3-one is as follows:
experiments show that the 6-amino-1, 2-benzisothiazol-3-one has good antiseptic and mildew-proof performance under an acidic condition, but has poor antiseptic and mildew-proof performance under an alkaline condition. Under the alkaline condition, the s-triazine preservative has good corrosion and mildew resistance, but the sterilization efficiency of the s-triazine is low, and the quick sterilization effect is difficult to achieve, so that the molecular structure of the s-triazine is modified by the scheme, and the sterilization efficiency of the s-triazine preservative is accelerated. The prepared paint has good antiseptic and mildew-proof performance under acidic or alkaline conditions.
Further, the simple construction artistic paint also comprises the following raw materials in parts by weight:
further, the dispersant is a high molecular polymer dispersant. The dispersant selected by the scheme is a high molecular polymer dispersant, has good compatibility with acrylic resin in the coating, and has good dispersing performance for filler or pearlescent pigment in the coating.
Further, the wetting agent is a nonionic alkoxylated alcohol surfactant.
Further, the film-forming assistant is a mixture of ethanol and dipropylene glycol butyl ether in a weight ratio of 1:1. The scheme selects a mixture of low-boiling point ethanol and high-boiling point dipropylene glycol butyl ether as a film forming aid to form a volatilization gradient, thereby being beneficial to forming a smooth coating.
Further, the defoaming agent is polysiloxane.
Further, the pH regulator is one of ammonia, NaOH and AMP 95.
Further, the filler is one or more of mica powder, glass beads and ceramic beads.
Furthermore, the pearlescent pigment is natural mica pearlescent, and the particle size is in the range of 20-60 microns.
Further, the preparation of the acrylic resin comprises the following steps:
s1, under the protection of inert gas, continuously stirring mixed acrylic resin, namely acrylic acid, methyl acrylate and a solvent, adding an initiator, heating for reaction, and performing post-treatment to obtain a solid for later use;
s2, dissolving the solid obtained in the step S1, heating, and dropwise adding SOCl2After-treatment, obtaining solid for later use;
s3, under the protection of inert gas, dissolving 6-amino-1, 2-benzisothiazole-3-ketone, heating, adding a catalyst, stirring, dropwise adding the solid obtained in the step S2 dissolved in the solvent, heating for reaction, adding the S-triazine derivative, stirring for reaction, and carrying out post-treatment to obtain the acrylic resin.
Further, in step S1, the initiator is one of benzoyl peroxide, tert-butyl peroxybenzoate, lauroyl peroxide, azobisisobutyronitrile, and azobisisoheptonitrile. The initiator selected by the scheme has a wide decomposition temperature range and is suitable for free radical polymerization at various temperatures.
Further, in step S1, the initiator is 0.5-1% of the total weight of the reaction solution.
Further, in step S2, the solid obtained in step S1 is mixed with SOCl2The reaction molar ratio of (a) to (b) is 1:1.2 to 1.5.
Further, in step S3, the catalyst is one of pyridine, triethylamine, and DABCO.
Catalyst selected by the scheme
The invention also aims to provide a preparation method of the simple construction artistic coating, which comprises the following steps:
mixing the neutralizer, the composite emulsifier, the acrylic resin and the deionized water, heating and uniformly stirring to obtain the acrylic copolymer emulsion.
Further, the neutralizing agent is one of sodium bicarbonate, sodium carbonate, potassium bicarbonate, sodium carbonate, triethylamine, triethanolamine, ammonia water, potassium hydroxide, 2-amino-2-methyl-1-propanol, sodium hydroxide and N, N-dimethylethanolamine.
Furthermore, the composite emulsifier is compounded by Tween-20 and sodium dodecyl sulfate according to the mass ratio of 0.5-1: 6.
Further, the weight content of the neutralizing agent is 1-10%, the weight content of the composite emulsifier is 1-20%, and the weight content of the deionized water is 10-58%.
The invention also aims to provide a preparation method of the simple construction artistic coating, which is realized by the following technical scheme:
mixing and stirring water, a wetting agent, a dispersing agent, a defoaming agent, a film-forming additive and a pH regulator; adding acrylic copolymer emulsion and filler for dispersion, adding pearlescent pigment, and stirring.
The invention also aims to provide a batch coating process which can be adopted during the construction of the simple construction artistic paint, and the steps are as follows:
the method comprises the following steps of coating a putty layer, coating a penetrating primer by roller for 1 time, coating a multifunctional primer by roller for one time, coating a simple artistic paint by batch for 1 time, leveling (color adjustment), coating the simple artistic paint by batch for 1 time, and coating an artistic cover surface by batch for 1 time at will.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not a whole embodiment. 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 1
Under the protection of nitrogen, adding acrylic acid (5mmol), methyl acrylate (10mmol) and 20mL ethyl acetate into a flask with a branch mouth, continuously stirring, adding 13.84g benzoyl peroxide, heating to 90 ℃ for reaction for 0.5h, after the reaction is finished, dissolving a solid in dichloromethane, dropwise adding the dichloromethane into ethanol, filtering and drying to obtain a copolymer for later use.
The copolymer (5mmol) obtained above and 30mL of anhydrous tetrahydrofuran THF were added to a reactor, heated to 75 ℃ and SOCl was added dropwise2(6mmol), reacted for 5 hours, and then distilled under reduced pressure to obtain a solid for use.
Under the protection of nitrogen, 6-amino-1, 2-benzisothiazol-3-one (2.5mmol) and 30mL of anhydrous toluene are added into a 50mL Schlenk bottle, the temperature is raised to 60 ℃, 1mL of triethylamine is added, stirring is carried out, the prepared solid (5mmol) dissolved in the toluene is dropwise added, the temperature is raised to 75 ℃, after 0.5 hour of reaction, the sym-triazine derivative (1mmol) is dropwise added, the reaction is continued for 0.5 hour, the product is cooled to room temperature, and the acrylic resin is obtained by passing through a silica gel column by taking ethyl acetate and petroleum ether (v/v ═ 1:9) as eluent and carrying out vacuum drying at 45 ℃.
Example 2
The methyl acrylate (10mmol) in example 1 was replaced with methyl acrylate (25mmol), 6-amino-1, 2-benzisothiazol-3-one (2.5mmol) with 6-amino-1, 2-benzisothiazol-3-one (4mmol), and the s-triazine derivative (1mmol) was replaced with the s-triazine derivative (2.5mmol), and the rest of the procedure was unchanged.
Example 3
The methyl acrylate (10mmol) in example 1 was replaced with methyl acrylate (15mmol), 6-amino-1, 2-benzisothiazol-3-one (2.5mmol) with 6-amino-1, 2-benzisothiazol-3-one (3mmol), and the s-triazine derivative (1mmol) was replaced with the s-triazine derivative (1.5mmol), and the rest of the procedure was unchanged.
Example 4
Mixing 10 parts by weight of sodium bicarbonate, 18 parts by weight of Tween-202, 60 parts by weight of the acrylic resin prepared in example 1 and 10 parts by weight of deionized water, and uniformly stirring at 50 ℃ to obtain an acrylic copolymer emulsion.
Example 5
1 part by weight of sodium bicarbonate, 200.1 parts by weight of Tween-200, 0.9 part by weight of sodium dodecyl sulfate, 40 parts by weight of the acrylic copolymer prepared in example 2 and 54 parts by weight of deionized water were mixed and stirred uniformly at 50 ℃ to obtain an acrylic copolymer emulsion.
Example 6
8 parts by weight of sodium bicarbonate, 9 parts by weight of Tween-201, 50 parts by weight of the acrylic copolymer prepared in example 2, and 32 parts by weight of deionized water were mixed and stirred uniformly at 50 ℃ to obtain an acrylic copolymer emulsion.
Comparative example 1
The s-triazine derivative of example 3 was replaced with s-triazine and the rest of the procedure was unchanged.
Comparative example 2
The 6-amino-1, 2-benzisothiazol-3-one from example 3 was replaced by cason, and the remaining steps were not changed.
Comparative example 3
Mixing 8 parts by weight of sodium bicarbonate, 9 parts by weight of Tween-201, 50 parts by weight of the acrylic copolymer prepared in comparative example 1 and 32 parts by weight of deionized water, and uniformly stirring at 50 ℃ to obtain the acrylic copolymer emulsion.
Comparative example 4
Mixing 8 parts by weight of sodium bicarbonate, 9 parts by weight of Tween-201, 50 parts by weight of the acrylic copolymer prepared in comparative example 2 and 32 parts by weight of deionized water, and uniformly stirring at 50 ℃ to obtain the acrylic copolymer emulsion.
The simple construction artistic coating and the preparation method thereof are as follows:
(1) the composition of the simple construction artistic paint.
Table 1 shows the compositions in parts by weight of the simple construction art paints of examples 7 to 9 and comparative examples 3 to 4.
(2) Examples 7-9 and comparative examples 3-4 preparation of a simple construction art coating.
Mixing and stirring water, a nonionic alkoxylated alcohol surfactant, a high molecular polymer dispersant, dipropylene glycol methyl ether, polysiloxane and ammonia water for 10 minutes; the acrylic copolymer emulsions of examples 7 to 9 and comparative examples 3 to 4 were added, respectively, and the glass powder was added and dispersed for 20 minutes, and then the natural mica pearl was added and stirred for 10 minutes.
The coatings of examples 7 to 9 of the present invention and comparative examples 3 to 4 were applied to sample plates of 50mm × 50mm in thickness of 1mm and cured to give coatings of examples 7 to 9 of the present invention and comparative examples 3 to 4. The coatings obtained were evaluated by the following test methods:
and (3) antibacterial and mildewproof test: the coating is subjected to an antibacterial and mildewproof performance test according to the national standard GB/T21866-2008, and the results are shown in Table 2.
Table 2. results of the antibacterial and antifungal properties test of the coatings of examples 7 to 9 and comparative examples 3 to 4.
As can be seen from Table 2, the simple construction artistic paint prepared in the embodiments 7-9 of the present invention has good antibacterial and mildewproof properties. The paint prepared in the comparative example 3 has general antibacterial performance under an alkaline condition, and almost has no antibacterial and mildew-proof performance under an acidic condition, and the paint prepared in the comparative example 4 has general antibacterial performance under an acidic condition, and almost has no antibacterial and mildew-proof performance under an alkaline condition.
The invention can adopt batch coating process during construction, and comprises the following steps: the method comprises the following steps of coating a putty layer, coating a penetrating primer by roller for 1 time, coating a multifunctional primer by roller for one time, coating a simple artistic paint by batch for 1 time, leveling (color adjustment), coating the simple artistic paint by batch for 1 time, and coating an artistic cover surface by batch for 1 time at will.
Finally, it should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the modifications and equivalents of the specific embodiments of the present invention can be made by those skilled in the art after reading the present specification, but these modifications and variations do not depart from the scope of the claims of the present application.
Claims (9)
1. The simple construction artistic paint is characterized by comprising 20-40 wt% of acrylic copolymer emulsion, wherein the acrylic copolymer emulsion comprises 40-60 wt% of acrylic resin, and the acrylic resin is prepared by polymerizing acrylic acid, methyl acrylate, s-triazine derivatives and 6-amino-1, 2-benzisothiazole-3-ketone according to a molar ratio of 1:2-5:0.2-0.5: 0.5-0.8;
the structure of the s-triazine derivative is shown as follows:
the structure of the 6-amino-1, 2-benzisothiazol-3-one is shown as follows:
the preparation of the acrylic resin comprises the following steps:
s1, mixing acrylic acid, methyl acrylate and a solvent under the protection of inert gas, adding an initiator under continuous stirring, heating for reaction, and performing post-treatment to obtain a solid for later use;
s2, dissolving the solid obtained in the step S1, heating, and dropwise adding SOCl2After-treatment, obtaining solid for later use;
s3, under the protection of inert gas, dissolving 6-amino-1, 2-benzisothiazole-3-ketone, heating, adding a catalyst, stirring, dropwise adding the solid obtained in the step S2 dissolved in the solvent, heating for reaction, adding the S-triazine derivative, stirring for reaction, and carrying out post-treatment to obtain the acrylic resin.
2. The simple construction artistic paint of claim 1, further comprising the following raw materials by weight:
3. the paint as claimed in claim 2, wherein the dispersant is a high molecular polymer dispersant;
the wetting agent is a nonionic alkoxylated alcohol surfactant;
the film-forming assistant is a mixture of ethanol and dipropylene glycol butyl ether in a weight ratio of 1: 1;
the defoaming agent is polysiloxane;
the pH regulator is one of ammonia water, NaOH and AMP 95;
the filler is one or more of mica powder, glass beads and ceramic beads;
the pearlescent pigment is natural mica pearlescent, and the particle size is 20-60 microns.
4. The paint of claim 1, wherein in step S1, the initiator is one of benzoyl peroxide, tert-butyl peroxybenzoate, lauroyl peroxide, azobisisobutyronitrile, and azobisisoheptonitrile.
5. The paint as claimed in claim 1, wherein in step S3, the catalyst is one of pyridine, triethylamine and DABCO.
6. The paint of claim 1, wherein the preparation method comprises the following steps:
mixing the neutralizer, the composite emulsifier, the acrylic resin and the deionized water, heating and uniformly stirring to obtain the acrylic copolymer emulsion.
7. The paint as claimed in claim 6, wherein the neutralizing agent is one of sodium bicarbonate, potassium bicarbonate, sodium carbonate, triethylamine, triethanolamine, ammonia water, potassium hydroxide, 2-amino-2-methyl-1-propanol, sodium hydroxide, and N, N-dimethylethanolamine.
8. The paint as claimed in claim 6, wherein the composite emulsifier is composed of Tween-20 and sodium dodecyl sulfate at a mass ratio of 0.5-1: 6.
9. The paint as claimed in claim 6, wherein the neutralizing agent is 1-10 wt%, the composite emulsifier is 1-20 wt%, and the deionized water is 10-58 wt%.
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| CN113321958A (en) * | 2021-07-07 | 2021-08-31 | 广东美涂士建材股份有限公司 | Preservative composition and application thereof in anticorrosive high-temperature-resistant coating |
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| CN107141937A (en) * | 2017-06-06 | 2017-09-08 | 常德金德镭射科技股份有限公司 | A kind of preparation method of polymolecularity antimildew and antibacterial coated film |
| CN109535904A (en) * | 2018-11-29 | 2019-03-29 | 杭州高雅涂料有限公司 | A kind of coating and preparation method thereof |
| CN112279957A (en) * | 2019-07-22 | 2021-01-29 | 广东迪美生物技术有限公司 | Water-based polyacrylate antibacterial emulsion, preparation method thereof and application thereof in coating |
| CN111574654B (en) * | 2019-10-21 | 2021-09-17 | 海南大学 | Structure and preparation method of acrylate antifouling resin containing benzo [ d ] isothiazoline-3-ketone-triazine-based monomer |
| CN113308155B (en) * | 2021-07-07 | 2022-11-29 | 广东美涂士建材股份有限公司 | Simple construction artistic coating and preparation method and application thereof |
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