CN112457601A - Sound insulation material and preparation method thereof - Google Patents
Sound insulation material and preparation method thereof Download PDFInfo
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- 239000012774 insulation material Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title abstract description 19
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical class C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229920003048 styrene butadiene rubber Polymers 0.000 claims abstract description 25
- 239000003381 stabilizer Substances 0.000 claims abstract description 21
- 239000000919 ceramic Substances 0.000 claims abstract description 15
- 239000006184 cosolvent Substances 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 15
- 239000012784 inorganic fiber Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 11
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 11
- 239000011230 binding agent Substances 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000005303 weighing Methods 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims abstract description 5
- 238000005096 rolling process Methods 0.000 claims abstract description 3
- 239000011810 insulating material Substances 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 150000001450 anions Chemical class 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 229920002748 Basalt fiber Polymers 0.000 claims description 4
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 4
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical group CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 3
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 229910052902 vermiculite Inorganic materials 0.000 claims description 3
- 239000010455 vermiculite Substances 0.000 claims description 3
- 235000019354 vermiculite Nutrition 0.000 claims description 3
- -1 alkenyl ether Chemical compound 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000002808 molecular sieve Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 229910052903 pyrophyllite Inorganic materials 0.000 claims description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 12
- 230000009467 reduction Effects 0.000 abstract description 10
- 238000013016 damping Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 20
- 239000002243 precursor Substances 0.000 description 11
- 235000011037 adipic acid Nutrition 0.000 description 10
- 239000001361 adipic acid Substances 0.000 description 10
- 239000002131 composite material Substances 0.000 description 10
- 238000010998 test method Methods 0.000 description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- 238000003490 calendering Methods 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 150000001335 aliphatic alkanes Chemical group 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001289 polyvinyl ether Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- 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
- C08K3/34—Silicon-containing compounds
-
- 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
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/10—Silicon-containing compounds
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- 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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a sound insulation material. The material consists of the following substances: 35 to 50 percent of modified styrene-butadiene copolymer, 10 to 30 percent of porous ceramic, 5 to 20 percent of filler, 10 to 25 percent of inorganic fiber, 1 to 5 percent of cosolvent, 5 to 10 percent of antioxidant and 5 to 10 percent of stabilizer. The preparation method comprises the following steps: weighing the raw materials of the components according to the formula, adding the raw materials into an internal mixer, uniformly mixing, controlling the filling coefficient to be 0.8-0.9, the binder removal temperature to be 110-150 ℃, the temperature to be 120-160 ℃ and the pressure to be 6-10Mpa, and rolling into a sheet with the thickness of 1-5mm, namely the sound insulation material. The sound insulation material has good damping and noise reduction functions, the average sound insulation quantity is 54dB within the noise frequency range of 100 HZ-6000 HZ, the frequency range is very wide, and the sound insulation effect is good; and the construction is simple.
Description
Technical Field
The invention belongs to the field of functional materials, and particularly relates to a sound insulation material and a preparation method thereof.
Background
In recent years, noise has increasingly serious influence on work and life of human beings, and seriously interferes with work, study and rest of people; people hope to have a material with good noise-proof and damping effects to improve the living environment and the working environment.
The noise is divided into high-frequency noise and low-frequency noise, the general noise range is between 100 and 6000HZ, and the problem of noise control by adopting multi-band composite materials is adopted for controlling the noise, but the effect of processing the over-wide audio frequency is not ideal.
At present, foreign researches on damping and noise-proof materials mainly aim at composite materials made of lead fibers, and in the text of research and development of noise-proof composite materials, the composite materials are mentioned to have the sound insulation quantity of 28dB at 500Hz, but lead has toxicity, and the use of the lead is reduced. In the text of research on polyvinyl chloride-based composite sound insulation materials, researchers mix polyvinyl chloride with inorganic superfine materials to develop a novel composite sound insulation material, the average sound insulation quantity of the composite material between the frequencies of 200HZ and 1600HZ is about 20dB, the noise prevention level of the composite material still cannot reach the ideal level, and therefore, the problem that whether the problem can be solved by a simple and convenient method in a wide range of frequencies also becomes a technical problem.
Disclosure of Invention
It is an object of the present invention to provide a sound insulating material. The specific technical scheme is as follows:
a sound insulation material comprises the following substances in percentage by mass: 35 to 50 percent of modified styrene-butadiene copolymer, 10 to 30 percent of porous ceramic, 5 to 20 percent of filler, 10 to 25 percent of inorganic fiber, 1 to 5 percent of cosolvent, 5 to 10 percent of antioxidant and 5 to 10 percent of stabilizer; the structure of the modified styrene-butadiene copolymer is as follows:
wherein, x, y, z is 10:1:1, and R is alkyl with 1-18 carbon atoms.
Preferably, the porous ceramic has a particle size of 0.1-5 μ M and a pore diameter of 0.1-1000nm, and has a chemical formula of M1-xAlx(OH)2A·nH2O, wherein M is Zn2+Or Mg2+And A is an anion of Si.
Preferably, the filler is one or a mixture of more than two of clay, kaolin, montmorillonite, vermiculite, pyrophyllite, mica and molecular sieve.
Preferably, the inorganic fibers are glass fibers or basalt fibers having a diameter of 0.1 to 2 μm.
Preferably, the cosolvent is a monohydric alcohol, a dihydric alcohol, an alkenyl ether, or an alcohol ether.
Preferably, the antioxidant is antioxidant 168, antioxidant 1010 or antioxidant 1076.
Preferably, the stabilizer is a composite lead salt stabilizer, an organotin stabilizer or a calcium zinc stabilizer.
The preparation method of the modified styrene-butadiene copolymer comprises the following steps:
in a synthesis device, adding a precursor, then adding adipic acid (the mass ratio of the precursor to the adipic acid is 4-5: 1), controlling the rotation speed at 200r/min and the temperature at 120 ℃, and reacting for 3 hours to obtain the modified styrene-butadiene copolymer. The molecular weight of the precursor is 4-5 ten thousand, and the structure is as follows:
x, z is 10:1, and R is an alkane of 1-18 carbon atoms.
The invention also aims to provide a preparation method of the sound insulation material. The specific technical scheme is as follows:
the preparation method of the sound insulation material comprises the following steps: weighing the modified styrene-butadiene copolymer, the porous ceramic, the filler, the inorganic fiber, the cosolvent, the antioxidant and the stabilizer according to the component formula, adding the materials into an internal mixer, uniformly mixing, controlling the filling coefficient to be 0.8-0.9, the binder removal temperature to be 110-150 ℃, the temperature to be 120-160 ℃ and the pressure to be 6-10Mpa, and rolling into a sheet with the thickness of 1-5mm, namely the sound insulation material.
The invention has the advantages of
The sound insulation material obtained by the invention has good damping and noise reduction functions, the average sound insulation quantity in the noise frequency range of 100 HZ-6000 HZ is 54dB, the frequency range is very wide, and the sound insulation effect is very good; and the sound insulation material is simple and convenient to construct.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It is to be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Example 1
Formula of composition
Preparing the following components in percentage by mass:
modified styrene-butadiene copolymer: 50 percent of
Ceramic M1-xAlx(OH)2A·nH2O: 15% in the formula, M represents Zn2+And A represents an anion of silicon.
Filler (mica): 8 percent of
Inorganic fibers (basalt fibers): 11% and a diameter of 0.1-2 μm
Co-solvent (ethylene glycol): 3 percent of
Antioxidant 1010: 5 percent of
Calcium zinc stabilizer: 8 percent of
Second, preparation method
1. Preparation of modified styrene-butadiene copolymer
And adding the precursor into a synthesis device, adding adipic acid (the mass ratio of the precursor to the adipic acid is 5:1), controlling the rotation speed at 200r/min and the temperature at 120 ℃, and reacting for 3 hours to obtain the modified styrene-butadiene copolymer.
2. Preparation of Sound insulating Material
Weighing the modified styrene-butadiene copolymer, the porous ceramic, the filler, the inorganic fiber, the cosolvent, the antioxidant and the stabilizer according to the formula, adding the materials into an internal mixer, uniformly mixing, wherein the filling coefficient is 0.85, the binder removal temperature is 130 ℃, the temperature is 140 ℃, the pressure is 8Mpa, and calendering the materials into a sheet with the thickness of 2mm by an open mill, namely the sound insulation material.
Third, performance test
1. The test method comprises the following steps: GB/T3785 electroacoustic performance and test method of sound level meter, GB/T3241 octave and fractional octave filter.
2. Noise reduction effect
The sound insulation amount of the narrow-band noise for the test sound source adopts the central frequency range of 100-6000 HZ. The noise reduction effect of the sound insulating material obtained in this example is shown in the following table:
example 2
Formula of composition
Preparing the following components in percentage by mass:
modified styrene-butadiene copolymer: 45 percent of
Ceramic M1-xAlx(OH)2A·nH2O: 20% in the formula, M represents Zn2+And A represents an anion of silicon.
Filler (kaolin): 7 percent of
Inorganic fibers (basalt fibers): 12% and a diameter of 0.1-2 μm
Cosolvent (polyvinyl ether): 3 percent of
Antioxidant 1010: 5 percent of
Calcium zinc stabilizer: 8 percent of
Second, preparation method
1. Preparation of modified styrene-butadiene copolymer
And adding the precursor into a synthesis device, adding adipic acid (the mass ratio of the precursor to the adipic acid is 5:1), controlling the rotation speed at 200r/min and the temperature at 120 ℃, and reacting for 3 hours to obtain the modified styrene-butadiene copolymer.
2. Preparation of Sound insulating Material
Weighing the modified styrene-butadiene copolymer, the porous ceramic, the filler, the inorganic fiber, the cosolvent, the antioxidant and the stabilizer according to the formula, adding the materials into an internal mixer, uniformly mixing, wherein the filling coefficient is 0.85, the binder removal temperature is 130 ℃, the temperature is 140 ℃, the pressure is 8Mpa, and calendering the materials into a sheet with the thickness of 2mm by an open mill, namely the sound insulation material.
Third, performance test
1. The test method comprises the following steps: GB/T3785 electroacoustic performance and test method of sound level meter, GB/T3241 octave and fractional octave filter.
2. Noise reduction effect
The sound insulation amount of the narrow-band noise for the test sound source adopts the central frequency range of 100-6000 HZ. The noise reduction effect of the sound insulating material obtained in this example is shown in the following table:
| center frequency | Sound insulation quantity (dB) |
| 100 | 19 |
| 500 | 29 |
| 1000 | 41 |
| 2000 | 50 |
| 3000 | 57 |
| 4000 | 66 |
| 5000 | 75 |
| 6000 | 83 |
Example 3
Formula of composition
Preparing the following components in percentage by mass:
modified styrene-butadiene copolymer: 40 percent of
Ceramic M1-xAlx(OH)2A·nH2O: 25% in the formula, M represents Mg2+And A represents an anion of silicon.
Filler (vermiculite): 8 percent of
Inorganic fibers (glass fibers): 11% and a diameter of 0.1-2 μm
Co-solvent (ethylene glycol): 5 percent of
Antioxidant 168: 5 percent of
Composite lead salt stabilizer: 6 percent of
Second, preparation method
1. Preparation of modified styrene-butadiene copolymer
And adding the precursor into a synthesis device, adding adipic acid (the mass ratio of the precursor to the adipic acid is 4:1), controlling the rotation speed at 200r/min and the temperature at 120 ℃, and reacting for 3 hours to obtain the modified styrene-butadiene copolymer.
2. Preparation of Sound insulating Material
Weighing the modified styrene-butadiene copolymer, the porous ceramic, the filler, the inorganic fiber, the cosolvent, the antioxidant and the stabilizer according to the formula, adding the materials into an internal mixer, uniformly mixing, wherein the filling coefficient is 0.85, the binder removal temperature is 130 ℃, the temperature is 140 ℃, the pressure is 8Mpa, and calendering the materials into a sheet with the thickness of 2mm by an open mill, namely the sound insulation material.
Third, performance test
1. The test method comprises the following steps: GB/T3785 electroacoustic performance and test method of sound level meter, GB/T3241 octave and fractional octave filter.
2. Noise reduction effect
The sound insulation amount of the narrow-band noise for the test sound source adopts the central frequency range of 100-6000 HZ. The noise reduction effect of the sound insulating material obtained in this example is shown in the following table:
| center frequency | Sound insulation quantity (dB) |
| 100 | 19 |
| 500 | 30 |
| 1000 | 39 |
| 2000 | 48 |
| 3000 | 56 |
| 4000 | 63 |
| 5000 | 72 |
| 6000 | 80 |
Example 4
Formula of composition
Preparing the following components in percentage by mass:
modified styrene-butadiene copolymer: 35 percent of
Ceramic M1-xAlx(OH)2A·nH2O: 25% in the formula, wherein M represents Mg2+And A represents an anion of silicon.
Filler (montmorillonite): 8 percent of
Inorganic fibers (glass fibers): 18% and a diameter of 0.1-2 μm
Cosolvent (polyethylene glycol ether): 3 percent of
Antioxidant 1076: 5 percent of
Organic tin stabilizers: 6 percent of
Second, preparation method
1. Preparation of modified styrene-butadiene copolymer
And adding the precursor into a synthesis device, adding adipic acid (the mass ratio of the precursor to the adipic acid is 4:1), controlling the rotation speed at 200r/min and the temperature at 120 ℃, and reacting for 3 hours to obtain the modified styrene-butadiene copolymer.
2. Preparation of Sound insulating Material
Weighing the modified styrene-butadiene copolymer, the porous ceramic, the filler, the inorganic fiber, the cosolvent, the antioxidant and the stabilizer according to the formula, adding the materials into an internal mixer, uniformly mixing, wherein the filling coefficient is 0.85, the binder removal temperature is 130 ℃, the temperature is 140 ℃, the pressure is 8Mpa, and calendering the materials into a sheet with the thickness of 2mm by an open mill, namely the sound insulation material.
Third, performance test
1. The test method comprises the following steps: GB/T3785 electroacoustic performance and test method of sound level meter, GB/T3241 octave and fractional octave filter.
2. Noise reduction effect
The sound insulation amount of the narrow-band noise for the test sound source adopts the central frequency range of 100-6000 HZ. The noise reduction effect of the sound insulating material obtained in this example is shown in the following table:
| center frequency | Sound insulation quantity (dB) |
| 100 | 20 |
| 500 | 29 |
| 1000 | 43 |
| 2000 | 51 |
| 3000 | 54 |
| 4000 | 62 |
| 5000 | 73 |
| 6000 | 81 |
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The sound insulation material is characterized by comprising the following substances in percentage by mass: 35 to 50 percent of modified styrene-butadiene copolymer, 10 to 30 percent of porous ceramic, 5 to 20 percent of filler, 10 to 25 percent of inorganic fiber, 1 to 5 percent of cosolvent, 5 to 10 percent of antioxidant and 5 to 10 percent of stabilizer; the structure of the modified styrene-butadiene copolymer is as follows:
wherein, x, y, z is 10:1:1, and R is alkyl with 1-18 carbon atoms.
2. The sound insulating material of claim 1, wherein the sound insulating material is a foam-like foam materialThe porous ceramic has a particle size of 0.1-5 μ M and a pore diameter of 0.1-1000nm, and has a chemical formula of M1-xAlx(OH)2A·nH2O, wherein M is Zn2+Or Mg2+And A is an anion of Si.
3. The sound insulating material according to claim 1, wherein the filler is one or a mixture of two or more of clay, kaolin, montmorillonite, vermiculite, pyrophyllite, mica, and molecular sieve.
4. The sound insulating material of claim 1, wherein the inorganic fibers are 0.1-2 μm diameter glass fibers or basalt fibers.
5. The sound insulating material of claim 1, wherein the co-solvent is a monohydric alcohol, a dihydric alcohol, an alkenyl ether, or an alcohol ether.
6. The sound insulating material of claim 1, wherein the antioxidant is antioxidant 168, antioxidant 1010 or antioxidant 1076.
7. The sound-insulating material according to claim 1, wherein the stabilizer is a complex lead salt stabilizer, an organotin stabilizer, or a calcium zinc stabilizer.
8. A method of producing the sound-insulating material as claimed in any one of claims 1 to 7, comprising the steps of: weighing the modified styrene-butadiene copolymer, the porous ceramic, the filler, the inorganic fiber, the cosolvent, the antioxidant and the stabilizer according to the component formula, adding the materials into an internal mixer, uniformly mixing, controlling the filling coefficient to be 0.8-0.9, the binder removal temperature to be 110-150 ℃, the temperature to be 120-160 ℃ and the pressure to be 6-10Mpa, and rolling into a sheet with the thickness of 1-5mm, namely the sound insulation material.
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| CN202011371683.3A CN112457601A (en) | 2020-11-30 | 2020-11-30 | Sound insulation material and preparation method thereof |
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| CN202011371683.3A CN112457601A (en) | 2020-11-30 | 2020-11-30 | Sound insulation material and preparation method thereof |
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| CN (1) | CN112457601A (en) |
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| CN104558840A (en) * | 2014-12-24 | 2015-04-29 | 上海金发科技发展有限公司 | Injection-molded type TPO (thermoplastic polyolefin) compound for sound-insulating pads for automobiles as well as preparation method of compound |
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| CN109679169A (en) * | 2018-11-23 | 2019-04-26 | 陶伟珍 | A kind of damping sound insulation styrene-butadiene rubber and preparation method thereof |
| CN110982182A (en) * | 2019-12-11 | 2020-04-10 | 株洲时代新材料科技股份有限公司 | High-molecular environment-friendly elastic sound insulation material and preparation method thereof |
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