CN115386035A - High-performance damping vibration attenuation elastomer based on multistage energy dissipation mechanism and preparation method thereof - Google Patents
High-performance damping vibration attenuation elastomer based on multistage energy dissipation mechanism and preparation method thereof Download PDFInfo
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- CN115386035A CN115386035A CN202211027024.7A CN202211027024A CN115386035A CN 115386035 A CN115386035 A CN 115386035A CN 202211027024 A CN202211027024 A CN 202211027024A CN 115386035 A CN115386035 A CN 115386035A
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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
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
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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
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1802—C2-(meth)acrylate, e.g. ethyl (meth)acrylate
Abstract
The invention provides a high-performance damping vibration attenuation elastomer based on a multistage energy dissipation mechanism and a preparation method thereof, wherein the damping vibration attenuation rubber takes an acrylate monomer with a long side chain as a main monomer, takes an acrylate monomer with an amino group and a carboxyl group as comonomers, and introduces the amino group and the carboxyl group on a molecular side chain of the acrylate monomer through copolymerization, so that hydrogen bonds, ionic bonds and aggregates with different sizes can be simultaneously formed between the two groups, and the elastomer has high mechanical property and excellent damping vibration attenuation property; the molar composition of the damping vibration-damping elastomer is as follows: 70-94 parts of acrylate monomer with long side chain, 3-15 parts of acrylic monomer with amido and equal molar content of acrylic monomer with carboxyl, and 0.001-0.05 part of polymerization initiator.
Description
Technical Field
The invention belongs to the technical field of rubber materials, and particularly relates to a high-performance damping vibration attenuation elastomer based on a multistage energy dissipation mechanism and a preparation method thereof.
Background
At present, vibration and noise are ubiquitous in daily life and industrial production, such as when using refrigerators, vehicles, airplanes, and the like. They not only lead to resonance, structural failure and fatigue failure, but also pose a health hazard to humans. In order to effectively reduce vibration and noise generated thereby, a viscoelastic damping polymer material (Scientific Reports 2016,6,22810) is usually selected. In the past, conventional rubber materials have often been used to achieve this. However, the modification based on the conventional rubber material has problems of complicated design or insufficient damping effect.
In recent years, it has been found that supramolecular polymers (Advanced Materials 2017,29,1604951, advanced Functional Materials 2018,28, 1800741) based on dynamic intermolecular interactions (hydrogen bonds, ionic bonds, metal coordination, etc.) can efficiently dissipate energy by reversible disruption of such interactions, thereby achieving excellent damping vibration-damping effects. For example, yan et al reported that a supramolecular elastomer based on quadruple hydrogen bonding has good impact resistance, reducing impact force by 70% (Journal of the American Chemical Society 2021,143,1162). Therefore, it is a promising and effective way to develop a damping method using an elastomer based on supramolecular interactions. However, how to improve the damping performance is still a question to be discussed.
Although some researchers have designed damped damping elastomers (biometics 2019,4,25) by simulating the structure of natural materials with excellent damping properties (such as mussel byssus), the preparation of these supramolecular polymers typically involves multiple steps, building complex hierarchical structures. In addition, their damping properties have not been studied. Therefore, it is still a great challenge to find a simple method for preparing a high-performance damping vibration-damping elastomer.
Disclosure of Invention
Aiming at the defects of the existing technology for preparing the damping vibration attenuation elastomer, the invention designs a high-performance damping vibration attenuation elastomer material and provides a simple method for preparing the high-performance damping vibration attenuation elastomer.
The design concept and beneficial effects of the invention are as follows: the invention constructs a multi-level energy dissipation mechanism by introducing dynamic intermolecular interaction with different strengths into the elastomer, thereby improving the mechanical property and the damping vibration attenuation effect of the elastomer. Specifically, carboxyl groups (located in linear pendant groups) and amine groups (located in cyclic pendant groups) are introduced into side chains of elastomer molecules, and hydrogen bonds, ionic bonds and aggregates with different sizes can be formed between the two groups at the same time. When the elastomer is subjected to an external force, the weak hydrogen bonds are broken first, and then the ionic bonds and aggregates are deformed from small to large to finally break. The enhancement of multiple dynamic interactions and a multi-stage energy dissipation mechanism enable the elastomer to have higher mechanical strength and excellent damping vibration attenuation performance.
Specifically, the high-performance damping vibration attenuation elastomer based on the multistage energy dissipation mechanism provided by the invention takes an acrylate monomer with a long side chain as a main monomer, takes an acrylate monomer with an amino group and a carboxyl group as a comonomer, and introduces the amino group and the carboxyl group on a molecular side chain of the acrylate monomer through copolymerization, and hydrogen bonds, ionic bonds and aggregates with different sizes can be simultaneously formed between the two groups, so that the elastomer has high mechanical property and excellent damping vibration attenuation property; the high-performance damping vibration-damping elastomer comprises the following components in mole percentage: 70-94 parts of acrylate monomer with long side chain, 3-15 parts of acrylate monomer with amido, 3-15 parts of acrylate monomer with carboxyl, wherein the content of the acrylate monomer with amido is equal to that of the acrylate monomer with carboxyl, and 0.001-0.05 part of polymerization initiator. Further, 5-10 parts of acrylic ester monomer with amido and 5-10 parts of acrylic ester monomer with carboxyl.
In the invention, the acrylate monomers with long side chains refer to acrylate monomers with different side chain lengths and easy copolymerization. By selecting the acrylate monomers with different side chain lengths as main monomers to carry out copolymerization reaction, the distance between amino and carboxyl on the side chain of the elastomer can be adjusted, thereby regulating and controlling the proportion of hydrogen bonds and ionic bonds in the elastomer. In addition, the glass transition temperature of the elastomer matrix can also be adjusted. Specifically, methyl acrylate, ethyl acrylate, butyl acrylate, hexyl acrylate, pentyl acrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate, hexyl methacrylate, pentyl methacrylate may be selected, and one or more of them may be used.
In the invention, the acrylate monomer with the amine group is preferably an acrylate monomer with the amine group on the cyclic side group. More specifically, vinylimidazole, vinylpyridine, vinylbenzimidazole, 2-methyl-1-vinylimidazole, and the like can be used.
In the present invention, the acrylic monomer having a carboxyl group is preferably an acrylic monomer having a carboxyl group on a linear side group. Further, acrylic acid, methacrylic acid, butene-3-oic acid, 3-pentenoic acid, trans-3-hexenoic acid, 3-heptenoic acid, 4-pentenoic acid, etc. can be specifically selected.
Aiming at the method for preparing the high-performance damping vibration attenuation elastomer, the method can be used for preparing the high-performance damping vibration attenuation elastomer by the following process steps:
(1) Preparation of reaction solution: adding the acrylate monomer with the long side chain, the comonomer with the amino group and the comonomer with the carboxyl group into a reaction solvent according to the formula ratio to prepare a monomer solution with the concentration of 0.004-0.01 mol/ml;
(2) Polymerization of monomers: adding the monomer solution prepared in the step (1) into a sealed three-necked bottle filled with protective gas, removing oxygen in the system, adding 0.001-0.05 mol part of initiator, stirring at 40-90 ℃, and carrying out polymerization reaction for not less than 1 hour;
(3) Post-treatment of the polymer: adding the solution obtained after the reaction in the step (2) into a precipitator for precipitation, removing unreacted monomers from the obtained precipitate, dissolving the precipitate with a solvent to obtain a solution, adding the solution into the precipitator again for precipitation, and repeating the operation for multiple times. And drying the solid product obtained by separation to constant weight to obtain the high-performance damping vibration-damping elastomer.
In the production method of the present invention, the initiator is preferably azobisisobutyronitrile, azobisisoheptonitrile, dibenzoyl peroxide, lauroyl peroxide, dicumyl peroxide, ditert-butyl peroxide, and diisopropyl peroxydicarbonate.
In the preparation method of the invention, the precipitating agent is preferably petroleum ether, n-hexane, n-pentane, cyclohexane, dichloromethane, water, acetone, isopentane, isooctane, trimethylpentane, cyclopentane, carbon tetrachloride, diethyl ether and propyl ether.
In the preparation method of the present invention, the shielding gas is preferably argon or nitrogen.
The invention provides a high-performance damping elastomer based on a multistage energy dissipation mechanism, which is characterized in that amino and carboxyl are introduced on a molecular chain of the elastomer as side groups, and the distance between the amino and the carboxyl is regulated and controlled by a main monomer with long side groups, so that hydrogen bonds, ionic bonds and aggregates with different sizes are formed between the amino and the carboxyl. At small strains, the weaker hydrogen bonds break first, while the ionic bonds and aggregates maintain the structural integrity of the elastomer. As the strain is further increased, ionic bonds begin to dissociate and the aggregates are broken down from weak to strong in sequence, resulting in more energy dissipation. Therefore, the multiple energy consumption mechanism endows the elastomer with higher strength and excellent vibration damping performance.
The mechanical property of the high-performance damping vibration attenuation elastomer based on the multistage energy dissipation mechanism is tested by a method specified in GB/T529-1999, the tensile strength of the elastomer is 0.16-21MPa, the elongation at break of the elastomer is 500-2200%, and the toughness of the elastomer is 1.1-64MJ/m 3 . The energy dissipation capacity was tested using the sample size and the draw rate specified in GB/T529-1999 and by performing cyclic drawing the stress-strain curve of the elastomer was obtained with an energy dissipation efficiency = (area of hysteresis loop/area of stress-strain curve under load) × 100. The energy dissipation efficiency of the high-performance damping vibration-damping elastomer can reach 87% through test calculation. The damping performance of the damping material is characterized by loss factors obtained by dynamic mechanical test and rheological test, and the result shows that tan delta>The temperature range of 0.3 is greater than85 ℃. The test results show that the multistage energy dissipation mechanism constructed by introducing the amine group and the carboxyl group enables the elastomer to have higher strength and excellent damping and vibration attenuation performance.
The raw materials used in the invention are easy to obtain, and the provided high-performance damping vibration attenuation elastomer has high mechanical strength, excellent damping performance and simple use. The preparation method provided by the invention is simple in process, easy to operate and wide in application field.
Drawings
Fig. 1 is a stress-strain curve of the rubber materials of example 3 and comparative examples 1, 2, 3, and it can be seen that the breaking strength and elongation of the rubber material of the present invention can be adjusted by adjusting the ratio between positive and negative charges.
FIG. 2 is a stress-strain plot of example 2 and comparative example 4, and it can be seen that the rubber material of the present invention has a significantly higher breaking strength than a rubber of equivalent comonomer content but with amine groups pendant from linear chains.
FIG. 3 is a dynamic mechanical test performance chart of examples 3 and 4, and it can be seen that the rubber material of the present invention has excellent damping performance.
Detailed Description
The foregoing and other objects of the present invention will become more apparent from the following detailed description of the embodiments, which should not be construed as limiting the scope of the above-described subject matter of the present invention to the examples set forth below. Those skilled in the art can make insubstantial modifications and adaptations to the invention described above.
In the examples described below, the amounts and concentrations of the individual components are, unless otherwise specified, in mole fractions and in mole concentrations.
Example 1
Dissolving 94 mol parts of butyl acrylate, 3 mol parts of acrylic acid and 3 mol parts of vinyl imidazole in ethyl acetate to prepare a monomer solution with the concentration of 0.006 mol/ml; the monomer solution and 0.01mol portion of AIBN initiator are added into a three-necked bottle provided with a magnetic stirrer, the three-necked bottle is connected with a reflux condensing device, argon is introduced for bubbling for 20 minutes, and then the temperature is raised to 70 ℃ for stirring reaction for 8 hours. And precipitating the reacted solution with petroleum ether to obtain a solid product, dissolving the precipitate with tetrahydrofuran, precipitating with petroleum ether again, repeating the operation for three times to remove unreacted monomers, and then putting the product into a vacuum oven to dry the product to constant weight to obtain the final product. Dissolving 4g of the product in 40ml of tetrahydrofuran, pouring the dissolved uniform solution into a tetrafluoro mold, and waiting for the solvent to volatilize at normal temperature; after 1 day, the mixture was dried in a vacuum oven at 60 ℃ to a constant weight.
Example 2
Dissolving 90 mol parts of butyl acrylate, 5 mol parts of acrylic acid and 5 mol parts of vinyl imidazole in ethyl acetate to prepare a monomer solution with the concentration of 0.006 mol/ml; the monomer solution and 0.01mol portion of AIBN initiator are added into a three-necked bottle provided with a magnetic stirrer, the three-necked bottle is connected with a reflux condensing device, argon is introduced for bubbling for 20 minutes, and then the temperature is raised to 70 ℃ for stirring reaction for 8 hours. And precipitating the reacted solution with petroleum ether to obtain a solid product, dissolving the precipitate with tetrahydrofuran, precipitating with petroleum ether again, repeating the operation for three times to remove unreacted monomers, and then putting the product into a vacuum oven to dry the product to constant weight to obtain the final product. Dissolving 4g of the product in 40ml of tetrahydrofuran, pouring the dissolved uniform solution into a tetrafluoro mold, and waiting for the solvent to volatilize at normal temperature; after 1 day, the mixture was dried in a vacuum oven at 60 ℃ to a constant weight.
Example 3
Dissolving 84 molar parts of butyl acrylate, 8 molar parts of acrylic acid and 8 molar parts of vinyl imidazole in ethyl acetate to prepare a monomer solution with the concentration of 0.006 mol/ml; the monomer solution and 0.01mol portion of AIBN initiator are added into a three-necked bottle provided with a magnetic stirrer, the three-necked bottle is connected with a reflux condensing device, argon is introduced for bubbling for 20 minutes, and then the temperature is raised to 70 ℃ for stirring reaction for 8 hours. And precipitating the reacted solution with petroleum ether to obtain a solid product, dissolving the precipitate with tetrahydrofuran, precipitating with petroleum ether again, repeating the operation for three times to remove unreacted monomers, and then putting the product into a vacuum oven to dry the product to constant weight to obtain the final product. Dissolving 4g of the product in 40ml of tetrahydrofuran, pouring the dissolved uniform solution into a tetrafluoro mold, and waiting for the solvent to volatilize at normal temperature; after 1 day, the mixture was dried in a vacuum oven at 60 ℃ to a constant weight.
Example 4
Dissolving 80 mol parts of butyl acrylate, 10 mol parts of acrylic acid and 10 mol parts of vinyl imidazole in ethyl acetate to prepare a monomer solution with the concentration of 0.006 mol/ml; the monomer solution and 0.01mol portion of AIBN initiator are added into a three-necked bottle provided with a magnetic stirrer, the three-necked bottle is connected with a reflux condensing device, argon is introduced for bubbling for 20 minutes, and then the temperature is raised to 70 ℃ for stirring reaction for 8 hours. And precipitating the reacted solution with petroleum ether to obtain a solid product, dissolving the precipitate with tetrahydrofuran, precipitating with petroleum ether again, repeating the operation for three times to remove unreacted monomers, and then putting the product into a vacuum oven to dry the product to constant weight to obtain the final product. Dissolving 4g of the product in 40ml of tetrahydrofuran, pouring the dissolved uniform solution into a tetrafluoro mold, and waiting for the solvent to volatilize at normal temperature; after 1 day, the mixture was dried in a vacuum oven at 60 ℃ to a constant weight.
Example 5
Dissolving 70 molar parts of butyl acrylate, 15 molar parts of acrylic acid and 15 molar parts of vinyl imidazole in ethyl acetate to prepare a monomer solution with the concentration of 0.006 mol/ml; the monomer solution and 0.01mol portion of AIBN initiator are added into a three-neck bottle provided with a magnetic stirrer, the three-neck bottle is connected with a reflux condensing device, argon is introduced for bubbling for 20 minutes, and then the temperature is raised to 70 ℃ for stirring reaction for 8 hours. And precipitating the reacted solution with petroleum ether to obtain a solid product, dissolving the precipitate with tetrahydrofuran, precipitating with petroleum ether again, repeating the operation for three times to remove unreacted monomers, and then putting the product into a vacuum oven to dry the product to constant weight to obtain the final product. Dissolving 4g of the product in 40ml of tetrahydrofuran, pouring the dissolved uniform solution into a tetrafluoro mold, and waiting for the solvent to volatilize at normal temperature; after 1 day, the mixture was dried in a vacuum oven at 60 ℃ to a constant weight.
Example 6
Dissolving 84 molar parts of ethyl acrylate, 8 molar parts of acrylic acid and 8 molar parts of vinyl imidazole in ethyl acetate to prepare a monomer solution with the concentration of 0.006 mol/ml; the monomer solution and 0.01mol portion of AIBN initiator are added into a three-necked bottle provided with a magnetic stirrer, the three-necked bottle is connected with a reflux condensing device, argon is introduced for bubbling for 20 minutes, and then the temperature is raised to 70 ℃ for stirring reaction for 8 hours. And precipitating the reacted solution with petroleum ether to obtain a solid product, dissolving the precipitate with tetrahydrofuran, precipitating with petroleum ether again, repeating the operation for three times to remove unreacted monomers, and then putting the product into a vacuum oven to dry the product to constant weight to obtain the final product. Dissolving 4g of the product in 40ml of tetrahydrofuran, pouring the dissolved uniform solution into a tetrafluoro mold, and waiting for the solvent to volatilize at normal temperature; after 1 day, the mixture was dried in a vacuum oven at 60 ℃ to a constant weight.
Comparative example 1
Dissolving 84 molar parts of butyl acrylate, 4 molar parts of acrylic acid and 12 molar parts of vinyl imidazole in ethyl acetate to prepare a monomer solution with the concentration of 0.006 mol/ml; the monomer solution and 0.01mol portion of AIBN initiator are added into a three-necked bottle provided with a magnetic stirrer, the three-necked bottle is connected with a reflux condensing device, argon is introduced for bubbling for 20 minutes, and then the temperature is raised to 70 ℃ for stirring reaction for 6 hours. And precipitating the reacted solution with petroleum ether to obtain a solid product, dissolving the precipitate with tetrahydrofuran, precipitating with petroleum ether again, repeating the operation for three times to remove unreacted monomers, and then putting the product into a vacuum oven to dry the product to constant weight to obtain the final product. Dissolving 4g of the product in 40ml of methanol, pouring the dissolved uniform solution into a tetrafluoro mold, and waiting for the solvent to volatilize at normal temperature; after 1 day, the mixture was dried in a vacuum oven at 60 ℃ to a constant weight.
Comparative example 2
Dissolving 84 molar parts of butyl acrylate, 12 molar parts of acrylic acid and 4 molar parts of vinyl imidazole in ethyl acetate to prepare a monomer solution with the concentration of 0.006 mol/ml; the monomer solution and 0.01mol portion of AIBN initiator are added into a three-necked bottle provided with a magnetic stirrer, the three-necked bottle is connected with a reflux condensing device, argon is introduced for bubbling for 20 minutes, and then the temperature is raised to 70 ℃ for stirring reaction for 6 hours. And precipitating the reacted solution with petroleum ether to obtain a solid product, dissolving the precipitate with tetrahydrofuran, precipitating with petroleum ether again, repeating the operation for three times to remove unreacted monomers, and then putting the product into a vacuum oven to dry the product to constant weight to obtain the final product. Dissolving 4g of the product in 40ml of methanol, pouring the dissolved uniform solution into a tetrafluoro mold, and waiting for the solvent to volatilize at normal temperature; after 1 day, the mixture was dried in a vacuum oven at 60 ℃ to a constant weight.
Comparative example 3
Dissolving 84 molar parts of butyl acrylate and 8 molar parts of vinyl imidazole in ethyl acetate to prepare a monomer solution with the concentration of 0.006 mol/ml; the monomer solution and 0.01mol portion of AIBN initiator are added into a three-necked bottle provided with a magnetic stirrer, the three-necked bottle is connected with a reflux condensing device, argon is introduced for bubbling for 20 minutes, and then the temperature is raised to 70 ℃ for stirring reaction for 8 hours. And precipitating the reacted solution with petroleum ether to obtain a solid product, dissolving the precipitate with tetrahydrofuran, precipitating with petroleum ether again, repeating the operation for three times to remove unreacted monomers, and then putting the product into a vacuum oven to dry the product to constant weight to obtain the final product. Dissolving 4g of the product in 40ml of methanol, pouring the dissolved uniform solution into a tetrafluoro mold, and waiting for the solvent to volatilize at normal temperature; after 1 day, the mixture was dried in a vacuum oven at 60 ℃ to a constant weight.
Comparative example 4
Dissolving 90 molar parts of butyl acrylate, 5 molar parts of acrylic acid and 5 molar parts of N, N-dimethylaminoethyl methacrylate in ethyl acetate to prepare a monomer solution with the concentration of 0.006 mol/ml; the monomer solution and 0.01mol portion of AIBN initiator are added into a three-necked bottle provided with a magnetic stirrer, the three-necked bottle is connected with a reflux condensing device, argon is introduced for bubbling for 20 minutes, and then the temperature is raised to 70 ℃ for stirring reaction for 8 hours. And precipitating the solution after reaction by using petroleum ether to obtain a solid product, dissolving the precipitate by using tetrahydrofuran, precipitating by using the petroleum ether again, repeating the operation for three times to remove unreacted monomers, and then putting the product into a vacuum oven to dry the product to a constant weight to obtain the final product. Dissolving 4g of the product in 40ml of tetrahydrofuran, pouring the dissolved uniform solution into a tetrafluoro mold, and waiting for the solvent to volatilize at normal temperature; after 1 day, the mixture was dried in a vacuum oven at 60 ℃ to a constant weight.
Claims (9)
1. A high-performance damping vibration attenuation elastomer based on a multistage energy dissipation mechanism is characterized in that an acrylate monomer with a long side chain is taken as a main monomer of damping rubber, an acrylate monomer with an amino group and a carboxyl group is taken as a comonomer, and the amino group and the carboxyl group are introduced into a molecular side chain of the acrylate monomer through copolymerization; the damping vibration-damping elastomer comprises the following molar components: 70-94 parts of acrylate monomer with long side chain, 3-15 parts of acrylic monomer with amido and equal molar content of acrylic monomer with carboxyl, and 0.001-0.05 part of polymerization initiator.
2. The high-performance damping vibration-damping elastomer based on the multistage energy dissipation mechanism as claimed in claim 1, wherein 5-10 parts of acrylate monomers with amino groups and 5-10 parts of acrylate monomers with carboxyl groups.
3. The high performance damped damping elastomer based on multi-stage energy dissipation mechanism as claimed in claim 1 or 2, wherein said long side chain acrylate monomer is selected from at least one of methyl acrylate, ethyl acrylate, butyl acrylate, hexyl acrylate, pentyl acrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate, hexyl methacrylate, pentyl methacrylate.
4. The high-performance damped vibration damping elastomer based on multi-stage energy dissipation mechanism according to claim 1 or 2, wherein the acrylate monomer with amine group is an acrylate monomer with amine group on cyclic side group.
5. The high-performance damping vibration-damping elastomer based on the multistage energy dissipation mechanism as claimed in claim 1 or 2, wherein the acrylate monomer with carboxyl is an acrylate monomer with carboxyl on a linear side group.
6. A method for preparing a high-performance damping vibration-damping elastomer based on a multistage energy dissipation mechanism as claimed in any one of claims 1 to 5, which is characterized by comprising the following process steps:
(1) Preparation of reaction solution: adding the acrylate monomer with the long side chain, the comonomer with the amino group and the comonomer with the carboxyl group into a reaction solvent according to the formula ratio to prepare a monomer solution with the monomer concentration of 0.004-0.01 mol/ml;
(2) Polymerization of monomers: adding the monomer solution prepared in the step (1) into a sealed three-necked bottle with protective gas introduced, removing oxygen in the system, adding 0.001-0.05 mol part of initiator, stirring at 40-90 ℃, and carrying out polymerization reaction for not less than 1 hour;
(3) Post-treatment of the polymer: adding the solution obtained after the reaction in the step (2) into a precipitator for precipitation, removing unreacted monomers from the obtained precipitate, dissolving the precipitate with a solvent to obtain a solution, adding the solution into the precipitator again for precipitation, and repeating the operation for multiple times; and drying the solid product obtained by separation to constant weight to obtain the high-performance damping vibration attenuation elastomer.
7. The method for preparing the high-performance damping vibration-damping elastomer based on the multistage energy dissipation mechanism according to claim 6, wherein the initiator is selected from the group consisting of azobisisobutyronitrile, azobisisoheptonitrile, dibenzoyl peroxide, lauroyl peroxide, dicumyl peroxide, di-tert-butyl peroxide and diisopropyl peroxide dicarbonate.
8. The method for preparing a high performance damped damping elastomer based on multistage energy dissipation mechanism as claimed in claim 6, wherein said precipitating agent is selected from the group consisting of petroleum ether, n-hexane, n-pentane, cyclohexane, dichloromethane, water, acetone, isopentane, isooctane, trimethylpentane, cyclopentane, carbon tetrachloride, diethyl ether and propyl ether.
9. The method for preparing the high-performance damping vibration-damping elastomer based on the multistage energy dissipation mechanism as claimed in claim 6, wherein the shielding gas can be argon or nitrogen.
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