CN108610713B - Efficient sound-blocking acrylic coating and preparation method and application thereof - Google Patents
Efficient sound-blocking acrylic coating and preparation method and application thereof Download PDFInfo
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- CN108610713B CN108610713B CN201810504269.1A CN201810504269A CN108610713B CN 108610713 B CN108610713 B CN 108610713B CN 201810504269 A CN201810504269 A CN 201810504269A CN 108610713 B CN108610713 B CN 108610713B
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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
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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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
- 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
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
Abstract
The invention relates to a high-efficiency sound-blocking acrylic coating which adopts 50-80 parts by weight of acrylate monomer, 10-15 parts by weight of solubilizing monomer, 20-25 parts by weight of oligomer, 10-15 parts by weight of noise-damping additive, 5-12 parts by weight of molecular sieve, 0.5-5 parts by weight of silane coupling agent, 3-8 parts by weight of initiator, 500 parts by weight of water and 0-10 parts by weight of other additives; the silencing auxiliary agent is a chlorinated butyl rubber and carboxyl butyl rubber blending microsphere; comprehensively obtain the sound-blocking acrylic coating with excellent sound-blocking effect, stable system and good adhesive force.
Description
Technical Field
The invention relates to the field of coatings, in particular to the field of acrylic coatings with efficient sound-blocking dispersion effects, and also relates to the fields of preparation methods and applications of the acrylic coatings.
Background
Along with the rapid development of society, the urbanization process is gradually accelerated, more and more people live in the building, but the problems in the building are more and more obvious, and the poor sound insulation effect of the building is gradually highlighted. In special fields, such as KTV rooms, live rooms of networks and the like, the requirement on sound insulation effect is higher. In the prior art, a wall body is generally adopted to adhere sound absorption materials, so that the investment cost is high, the reconstruction cost is high, the flexibility is low, the method is inconvenient to use in daily families, and the method cannot be used in conventional family decoration.
The coating is used as a common building decoration material and is widely used in daily home decoration. The most widely used acrylate coating is an acrylate coating, the specific performance of the acrylate coating can be adjusted through the selection of a comonomer, the flexibility is high, and meanwhile, the prepared water-based acrylic coating has excellent environmental protection characteristics. Whether a coating having excellent sound-blocking and sound-deadening effects can be prepared becomes an important issue.
The inventor has conducted long-term research and exploration to obtain a coating with excellent sound-blocking effect (the inventor also obtains a wallpaper primer, and has made another application on the same day), and the coating can greatly reduce the sound volume through a thin coating.
The invention content is as follows:
the purpose of the invention is as follows: aiming at the technical requirements mentioned in the background technology, the sound volume can be reduced by adding the chlorinated butyl rubber and the carboxyl butyl rubber blended microspheres into the coating as the noise elimination auxiliary agent and combining with a proper filler molecular sieve. Meanwhile, the coating with strong adhesive force is obtained by selecting the composition of the acrylate adhesive and matching the acrylate adhesive with the noise elimination component and the molecular sieve.
Specifically, the invention mainly provides the high-efficiency sound-blocking acrylic coating with excellent sound attenuation and good adhesive force.
The invention also provides a preparation method and application of the high-efficiency sound-blocking acrylic coating.
In order to achieve the above object, the present invention is made by the following embodiments.
Summary of The Invention
The core technical scheme of the invention is to provide an efficient sound-blocking acrylic coating, which comprises the following components: 50-80 parts of acrylate monomer, 10-15 parts of solubilizing monomer, 20-25 parts of oligomer, 10-15 parts of noise elimination additive, 5-12 parts of molecular sieve, 0.5-5 parts of silane coupling agent, 3-8 parts of initiator, 500 parts of water and 0-10 parts of other additives.
As a preferable technical scheme, the acrylate monomer comprises 10-15 parts by weight of butyl acrylate, 3-5 parts by weight of methyl acrylate, 0.5-2 parts by weight of acrylic acid, 5-8 parts by weight of 4-hydroxybutyl methacrylate and 1-2 parts by weight of 3-methoxy silane propyl acrylate.
As a preferred technical solution, the solubilizing monomer is vinyl pyrrolidone.
As a preferable technical scheme, the oligomer is one or a mixture of more of polyurethane acrylate oligomer, low molecular weight polyurethane or low molecular weight polyacrylate.
As a preferred technical scheme, the noise elimination additive is a chlorinated butyl rubber and carboxyl butyl rubber blending microsphere.
As a preferable technical scheme, the weight ratio of the chlorinated butyl rubber to the carboxyl butyl rubber is 1: 3-5.
As a preferable technical scheme, the noise elimination auxiliary agent, the molecular sieve and the silane coupling agent are stirred in an alcohol-water solvent for 1-2 hours and then dried.
As a preferred technical scheme, the other auxiliary agents comprise a dispersing agent and/or a defoaming agent.
The invention also provides a preparation method of the high-efficiency sound-blocking acrylic coating, which comprises the following preparation steps:
(1) stirring the silencing auxiliary agent, the molecular sieve and the silane coupling agent in an alcohol-water solvent for 1-2 hours, and drying to obtain a mixture;
(2) uniformly mixing an acrylate monomer, a solubilizing monomer, an oligomer, an initiator and the mixture obtained in the step (1), introducing nitrogen to remove oxygen, stirring at a constant speed, and reacting at 60-90 ℃ for 2-5 hours to obtain a basic copolymer;
(3) and adding a small amount of ammonia water and water into the basic copolymer, stirring and neutralizing for 3-5 hours, and uniformly dispersing.
The invention also provides the application of the high-efficiency sound-blocking acrylic coating, and particularly relates to the aspects of coating the inner wall, priming the wallpaper and the like.
Detailed Description
In this section, the technical solutions will be explained in detail for the purpose of detailed understanding of the present invention.
The coating is composed of acrylic acid with high-efficiency sound resistance, and the subject scheme of the coating comprises 50-80 parts by weight of acrylate monomer, 10-15 parts by weight of solubilizing monomer, 20-25 parts by weight of oligomer, 10-15 parts by weight of noise elimination assistant, 5-12 parts by weight of molecular sieve, 0.5-5 parts by weight of silane coupling agent, 3-8 parts by weight of initiator, 500 parts by weight of water and 0-10 parts by weight of other assistant. The acrylic monomer is used as a main component, the solubility of a system is improved by further adopting a compatibilization monomer, the dispersibility of the coating in water is improved, and the flexibility of a coating layer of the coating is improved by using the oligomer as a component with a toughening effect.
Principle of noise elimination part
The invention adopts the cooperation of the silencing additive, the molecular sieve and the silane coupling agent, and the combination can reduce the transmission of sound from two angles and achieve the technical effect of sound resistance.
Firstly, the noise-damping additive mainly uses noise-damping rubber, specifically chlorinated butyl rubber and carboxyl butyl rubber blended microspheres, the chlorinated butyl rubber is halogen substituted noise-damping rubber commonly used in the field, but the dispersibility of the chlorinated butyl rubber in a water system is poor, the carboxyl butyl rubber is rubber compatible with the chlorinated butyl rubber, and meanwhile, the chlorinated butyl rubber has better water dispersibility, and the chlorinated butyl rubber and the carboxyl butyl rubber are mixed in a proper proportion, so that the excellent noise-damping effect is ensured, and the good dispersibility in water is also ensured.
For the selection of the proportion of the chlorinated butyl rubber and the carboxybutyl rubber, the weight ratio of the chlorinated butyl rubber to the carboxybutyl rubber is 1: 3-5.
If the chlorinated butyl rubber is too much, the noise elimination effect is poor, mainly because the noise elimination effect of the halogen substituted butyl rubber is far better than that of the butyl rubber and the carboxyl butyl rubber; since the carboxyl butyl rubber is a high molecular polymer, the proportion of carboxyl groups is still low, and if the carboxyl butyl rubber is too little, the overall dispersibility is insufficient, and the storage stability of the coating is affected. Unstable systems can result in uneven distribution of the components and an uneven sound damping effect.
The brominated butyl rubber can be replaced with chlorinated butyl rubber, and the chlorination effect is slightly better than that of the brominated butyl rubber.
The chlorinated butyl rubber can be selected from Acheson butyl rubber 1066 and Langsheng butyl rubber 1240; the carboxylated butyl rubber can be prepared according to section 1.2 of the reference (research on the preparation and performance of carboxylated butyl rubber, Qin Bao and the like, special rubber products, 6 months 2011, volume 32, 3 rd).
Secondly, the molecular sieve is used as a sound wave release stopping site, the molecular sieve, the chlorinated butyl rubber and the carboxyl butyl rubber blending microspheres are relatively uniformly dispersed, and the dispersing method is introduced later. The molecular sieve has a large number of void structures, sound waves after damping of the chlorinated butyl rubber and carboxyl butyl rubber blended microspheres are changed into long waves, the long waves are subjected to repeated resonance in the molecular sieve to be gradually eliminated, and a secondary sound blocking effect is achieved.
As a preferable technical scheme, in order to play the functions of the silencing aid and the molecular sieve, the silencing aid, the molecular sieve and the silane coupling agent are stirred in an alcohol-water solvent for 1-2 hours and then dried, the coupling agent is hydrolyzed in the alcohol-water solution, the uniform dispersion and stable contact of the molecular sieve and the silencing aid are improved, and the silencing effect of the two points can be improved. If the method is not adopted, the contact between the silencing auxiliary and the molecular sieve is slightly insufficient, and the effect is reduced. The selection of the molecular sieve is not particularly limited, and common 3A (potassium a type), 4A (sodium a type), 5A (calcium a type), 10Z (calcium Z type), 13Z (sodium Z type), Y (sodium Y type), sodium mordenite type, and the like are suitable for the present invention.
Acrylic resin moiety
The acrylic resin of the present invention is required to have good water dispersibility and is composed essentially of: 10-15 parts of butyl acrylate, 3-5 parts of methyl acrylate, 0.5-2 parts of acrylic acid, 5-8 parts of 4-hydroxybutyl methacrylate and 1-2 parts of 3-methoxy silane propyl acrylate. The acrylic acid and the 4-hydroxybutyl methacrylate are used to improve the dispersibility of the acrylic resin, the acrylic acid has good water solubility but has certain corrosivity to inorganic components, and the hydroxyl in the 4-hydroxybutyl methacrylate has no carboxyl but can improve the dispersibility of the system. Meanwhile, the invention also adopts a solubilizing monomer, and the compatibilizing monomer is vinyl pyrrolidone, which can improve the stability of the system. According to the mechanism, the dosage of each component is also selected based on the theory, the proportion of acrylic acid is not suitable to be too large, the acrylic acid is corrosive, and only 4-hydroxybutyl methacrylate is used after the proportion is too small, so that the dispersibility is poor; and when the content of the 4-hydroxybutyl methacrylate is in a proper range, the dispersibility is poor, the AA supplementing effect is difficult to achieve, and if the content is too large, the cohesion of the polymer is large, and the later-stage flexibility is reduced.
The invention also adopts a silane comonomer (3-methoxy silane propyl acrylate), and the addition of the silane comonomer improves the compatibility with the noise elimination part and the integral stability. As a preferable technical scheme, the component is not too large in dosage, and the large dosage can cause large degree of post-crosslinking and insufficient stability of the system.
In the part, partial oligomer is used as a toughening agent, so that the flexibility of the system is improved, and the low molecular polymer can improve the effect of the stabilizer and improve the overall dispersibility. The oligomer is one or a mixture of more of polyurethane acrylate oligomer, low molecular weight polyurethane or low molecular weight polyacrylate. The amount of the component should not be too large, and if the amount is too large, the overall molecular weight is reduced, and the strength and hardness of the coating are reduced.
In order to ensure the uniform dispersion of the components and the overall stability of the system, a dispersant and/or a defoamer can be added at appropriate time.
Preparation method part
For the preparation, there is no clear stipulation, the conventional method can be realized, as the preferred technical scheme, the method comprises:
(1) stirring the silencing auxiliary agent, the molecular sieve and the silane coupling agent in an alcohol-water solvent for 1-2 hours, and drying to obtain a mixture;
(2) uniformly mixing an acrylate monomer, a solubilizing monomer, an oligomer, an initiator and the mixture obtained in the step (1), introducing nitrogen to remove oxygen, stirring at a constant speed, and reacting at 60-90 ℃ for 2-5 hours to obtain a basic copolymer;
(3) and adding a small amount of ammonia water and water into the basic copolymer, stirring and neutralizing for 3-5 hours, and uniformly dispersing.
In the preparation method, the mixture obtained in the step (1) is subjected to copolymerization reaction in the step (2), so that the components are uniformly dispersed, the dispersibility is improved after neutralization and salt formation in the later period, and the corrosivity of the acrylic monomer can be reduced.
Application part
Aiming at the excellent performance of the coating, the coating is preferably used as an inner wall coating or a wallpaper primer, and the technical effect of sound resistance is achieved from the wall part.
Advantageous technical effects of the invention
The invention uses the matching of multiple factors, wherein the sound resistance effect is improved by matching the chlorinated butyl rubber and the carboxyl butyl rubber blending microsphere, the molecular sieve and the coupling agent; in the acrylic resin part, a polar monomer, a silane monomer and a solubilizing monomer are selected and used, so that the stability and the adhesive force of a system are improved, the acting force of the acrylic resin part and a molecular sieve on silencing components is improved, and the sound-blocking acrylic coating with excellent sound-blocking effect, stable system and good adhesive force is comprehensively obtained.
Detailed Description
In order to make the technical solutions more comprehensible to the skilled person, the present invention is described in detail below by way of examples and comparative examples. The following examples are given by way of illustration only and not by way of limitation, and all simple alternatives commonly used in the art are within the scope of the present invention.
The preparation process in the embodiment of the invention is as follows, and when the use amount of part of the components is 0, the process is omitted, the specific process difference is specifically explained, and the following scheme is adopted without specific explanation.
(1) Stirring the silencing auxiliary agent, the molecular sieve and the silane coupling agent in an alcohol-water solvent for 2 hours, and drying to obtain a mixture; (2) uniformly mixing an acrylate monomer, a solubilizing monomer, an oligomer, an initiator and the mixture obtained in the step (1), introducing nitrogen to remove oxygen, stirring at a constant speed of 100rpm, and reacting at 70 ℃ for 3 hours to obtain a basic copolymer; (3) and adding a small amount of ammonia water and water into the basic copolymer, stirring and neutralizing for 4 hours, and uniformly dispersing.
The dosage of each component is as follows (unit: weight portion)
Example 6 is the same composition as example 1 except that the silencing aid, molecular sieve and coupling agent are all added directly to step (2) without prior treatment.
Test results
Coating weight: 2.5m2/L (film thickness about 450um)
2-storage stability-reference GB/T6753.3-1986, which tests for particles on the paint film, faster brushing.
3-cross-hatch method, tested with reference to GB-T9286-1998, at a 3mm spacing.
Flexibility, tested with reference to GB 6742-86.
5-impact strength, tested with reference to GB-T1732-1993.
The experimental data show that the sound-blocking coating with excellent performance is obtained under the combined action of multiple factors, wherein the core technology comprises the selection of the composition and the structure of the sound-blocking auxiliary agent, the selection of the molecular sieve and the treatment of the sound-blocking auxiliary agent, the molecular sieve and the coupling agent, and meanwhile, in the acrylic acid base polymer, the dosage of the polar monomer and the silane monomer also has important influence on the adhesive force and the stability of the sound-blocking auxiliary agent, and the factors are not reported in the prior art and products.
Claims (8)
1. An efficient sound-blocking acrylic coating is characterized in that: comprises 50-80 parts of acrylate monomer, 10-15 parts of solubilizing monomer, 20-25 parts of oligomer, 10-15 parts of noise elimination additive, 5-12 parts of molecular sieve, 0.5-5 parts of silane coupling agent, 3-8 parts of initiator, 500 parts of water and 0-10 parts of other additives;
the acrylate monomer comprises 10-15 parts by weight of butyl acrylate, 3-5 parts by weight of methyl acrylate, 0.5-2 parts by weight of acrylic acid, 5-8 parts by weight of 4-hydroxybutyl methacrylate and 1-2 parts by weight of 3-methoxy silane propyl acrylate;
the silencing auxiliary agent is a chlorinated butyl rubber and carboxyl butyl rubber blending microsphere.
2. The high efficiency acoustical resistance acrylic coating of claim 1, wherein: the solubilizing monomer is vinyl pyrrolidone.
3. The high efficiency acoustical resistance acrylic coating of claim 1, wherein: the oligomer is one or a mixture of more of polyurethane acrylate oligomer, low molecular weight polyurethane or low molecular weight polyacrylate.
4. The high efficiency acoustical resistance acrylic coating of claim 1, wherein: the weight ratio of the chlorinated butyl rubber to the carboxyl butyl rubber is 1: 3-5.
5. The high efficiency acoustical resistance acrylic coating of claim 1, wherein: and stirring the silencing auxiliary agent, the molecular sieve and the silane coupling agent in an alcohol-water solvent for 1-2 hours, and then drying.
6. The high efficiency acoustical resistance acrylic coating of claim 1, wherein: the other auxiliary agents include a dispersant and/or a defoaming agent.
7. The preparation method of the high-efficiency sound-blocking acrylic coating as claimed in any one of claims 1 to 6, characterized in that: the method comprises the following steps:
(1) stirring the silencing auxiliary agent, the molecular sieve and the silane coupling agent in an alcohol-water solvent for 1-2 hours, and drying to obtain a mixture;
(2) uniformly mixing an acrylate monomer, a solubilizing monomer, an oligomer, an initiator and the mixture obtained in the step (1), introducing nitrogen to remove oxygen, stirring at a constant speed, and reacting at 60-90 ℃ for 2-5 hours to obtain a basic copolymer;
(3) and adding a small amount of ammonia water and water into the basic copolymer, stirring and neutralizing for 3-5 hours, and uniformly dispersing.
8. Use of a high efficiency acoustical resistant acrylic coating according to any one of claims 1-6, characterized in that: it is used for painting inner wall and coating wallpaper.
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| CN201810504269.1A CN108610713B (en) | 2018-05-23 | 2018-05-23 | Efficient sound-blocking acrylic coating and preparation method and application thereof |
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| CN201810504269.1A CN108610713B (en) | 2018-05-23 | 2018-05-23 | Efficient sound-blocking acrylic coating and preparation method and application thereof |
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| CN108610713A CN108610713A (en) | 2018-10-02 |
| CN108610713B true CN108610713B (en) | 2020-11-10 |
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| CN103483948A (en) * | 2013-10-10 | 2014-01-01 | 常熟市方塔涂料化工有限公司 | Sound-insulation noise-reduction wall coating |
| CN105907192B (en) * | 2015-09-11 | 2018-05-18 | 株洲飞鹿高新材料技术股份有限公司 | Automobile using aqueous damping coating |
| CN106280829B (en) * | 2016-08-08 | 2018-08-03 | 佛山市尧添进出口贸易有限公司 | A kind of aqueous, environmental protective acrylate paint with low smell, Formaldehyde decomposition |
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