CN116462450B - Sound-absorbing and shock-absorbing building material and preparation method thereof - Google Patents
Sound-absorbing and shock-absorbing building material and preparation method thereof Download PDFInfo
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- CN116462450B CN116462450B CN202211333715.XA CN202211333715A CN116462450B CN 116462450 B CN116462450 B CN 116462450B CN 202211333715 A CN202211333715 A CN 202211333715A CN 116462450 B CN116462450 B CN 116462450B
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- 239000004566 building material Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000004113 Sepiolite Substances 0.000 claims abstract description 36
- 229910052624 sepiolite Inorganic materials 0.000 claims abstract description 36
- 235000019355 sepiolite Nutrition 0.000 claims abstract description 36
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000004568 cement Substances 0.000 claims abstract description 24
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 22
- 239000004793 Polystyrene Substances 0.000 claims abstract description 18
- XYRAEZLPSATLHH-UHFFFAOYSA-N trisodium methoxy(trioxido)silane Chemical compound [Na+].[Na+].[Na+].CO[Si]([O-])([O-])[O-] XYRAEZLPSATLHH-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229920002223 polystyrene Polymers 0.000 claims abstract description 16
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 claims abstract description 14
- 239000001863 hydroxypropyl cellulose Substances 0.000 claims abstract description 14
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 claims abstract description 14
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims description 60
- 238000010521 absorption reaction Methods 0.000 claims description 29
- 238000001035 drying Methods 0.000 claims description 20
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 15
- 230000035939 shock Effects 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 239000006185 dispersion Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 239000011812 mixed powder Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 10
- 230000010355 oscillation Effects 0.000 claims description 9
- 238000003892 spreading Methods 0.000 claims description 9
- 230000007480 spreading Effects 0.000 claims description 9
- 238000009210 therapy by ultrasound Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 239000012153 distilled water Substances 0.000 claims description 5
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- 239000002912 waste gas Substances 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims 1
- 239000000835 fiber Substances 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 16
- 238000006116 polymerization reaction Methods 0.000 abstract description 10
- 229910008051 Si-OH Inorganic materials 0.000 abstract description 6
- 229910006358 Si—OH Inorganic materials 0.000 abstract description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 6
- 238000007711 solidification Methods 0.000 abstract description 4
- 230000008023 solidification Effects 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000004220 aggregation Methods 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 4
- 239000011359 shock absorbing material Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 125000005372 silanol group Chemical group 0.000 description 2
- 208000020358 Learning disease Diseases 0.000 description 1
- 208000009205 Tinnitus Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000001544 dysphoric effect Effects 0.000 description 1
- 208000019622 heart disease Diseases 0.000 description 1
- 201000003723 learning disability Diseases 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000009728 shiwei Substances 0.000 description 1
- 231100000886 tinnitus Toxicity 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
- C04B14/062—Microsilica, e.g. colloïdal silica
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/46—Rock wool ; Ceramic or silicate fibres
- C04B14/4643—Silicates other than zircon
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/38—Polysaccharides or derivatives thereof
- C04B24/383—Cellulose or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/40—Compounds containing silicon, titanium or zirconium or other organo-metallic compounds; Organo-clays; Organo-inorganic complexes
- C04B24/42—Organo-silicon compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/0051—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore size, pore shape or kind of porosity
- C04B38/0061—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore size, pore shape or kind of porosity closed porosity
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2038—Resistance against physical degradation
- C04B2111/2046—Shock-absorbing materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Civil Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Building Environments (AREA)
Abstract
The invention belongs to the field of construction and relates to a method for manufacturing a building, in particular to a sound-absorbing and shock-absorbing building material and a preparation method thereof, the preparation method comprises the following raw materials: cement, sepiolite, nano silicon dioxide, sodium methyl silicate, polystyrene, high-substituted hydroxypropyl cellulose, acetone and water. The invention utilizes the characteristics of sepiolite fiber, such as unique physical and chemical properties, high specific surface area and porosity, to form a porous system; the nano silicon dioxide forms good doping under the condition of softening the sepiolite fiber, and utilizes hydroxyl groups expressed by the nano silicon dioxide and Si-OH on the surface of the sepiolite fiber to form a polymerization effect, so that internal solidification is achieved, and the self firm strength is improved.
Description
Technical Field
The invention belongs to the field of buildings, and particularly relates to a sound-absorbing and shock-absorbing building material and a preparation method thereof.
Background
According to the disease burden caused by noise pollution issued by the Shiwei organization and the European Union cooperative research center, the noise pollution not only causes people to be dysphoric and sleep bad, but also causes or triggers heart diseases, learning disorder, tinnitus and other diseases, thereby reducing the service life of people. In addition, noise can also accelerate aging of buildings and mechanical structures, affecting the accuracy and life of equipment and meters. Therefore, people have higher requirements on the building environment in which the people are located; in important places such as music halls, office buildings, gymnasiums, hotels and the like, the densely populated places have extremely high requirements for sound insulation effects of buildings. At present, most of building sound insulation building materials are filled with some materials capable of absorbing sound or insulating sound, and the building materials have the problems of high cost and poor sound absorption effect.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a sound-absorbing and shock-absorbing building material, which forms a porous system by utilizing the characteristics of sepiolite fiber, such as unique physical and chemical properties, high specific surface area and high porosity; the nano silicon dioxide forms good doping under the condition of softening the sepiolite fiber, and utilizes hydroxyl groups expressed by the nano silicon dioxide and Si-OH on the surface of the sepiolite fiber to form a polymerization effect, so that internal solidification is achieved, and the self firm strength is improved.
In order to achieve the technical purpose, the technical scheme of the invention is as follows:
a sound-absorbing and shock-absorbing building material, which comprises the following raw materials: cement, sepiolite, nano silicon dioxide, sodium methyl silicate, polystyrene, high-substituted hydroxypropyl cellulose, acetone and water.
The building material comprises the following components in percentage by mass: 10-20 parts of cement, 20-30 parts of sepiolite, 3-8 parts of nano silicon oxide, 4-8 parts of sodium methyl silicate, 8-14 parts of polystyrene, 3-8 parts of high-substituted hydroxypropyl cellulose, 10-20 parts of acetone and 10-20 parts of water.
The preparation method of the building material comprises the following steps:
step 1, adding high-substituted hydroxypropyl cellulose into acetone, and uniformly stirring to form a dispersion liquid, wherein the stirring speed is 1000-2000r/min; then adding polystyrene into the dispersion liquid, and performing ultrasonic dispersion until slurry is formed, wherein the ultrasonic dispersion temperature is 5-10 ℃ and the ultrasonic frequency is 40-90kHz;
Step 2, adding sepiolite into water, uniformly stirring to form uniform suspension, adding nano silicon dioxide, performing ultrasonic dispersion for 10-20min, and drying to obtain mixed powder and distilled water; the stirring speed of the uniform stirring is 100-200r/min, the stirring temperature is 60-80 ℃, the ultrasonic dispersing temperature is 50-80 ℃, and the ultrasonic frequency is 80-100kHz; the drying temperature is 120-150 ℃;
Step 3, adding sodium methyl silicate into the mixed powder, standing for 20-30min, and oscillating for 60-80min by microwaves to obtain viscous powder, wherein the standing temperature is 30-50 ℃ and the pressure is 0.3-0.5MPa; the microwave power of the microwave oscillation is 400-600W, and the temperature is 30-50 ℃;
And step 4, mixing the viscous powder with the slurry, stirring at a constant temperature after low-temperature ultrasonic treatment for 1-2 hours, adding cement, continuously stirring, drying to obtain a sound absorption and shock absorption material, recovering waste gas to obtain acetone, wherein the temperature of the low-temperature ultrasonic treatment is 10-20 ℃, the frequency is 50-70kHz, the temperature of constant-temperature stirring is 20-30 ℃, the stirring speed is 100-200r/min, and the drying temperature is 50-70 ℃.
The sound-absorbing and shock-absorbing plate is prepared by uniformly stirring water serving as a dissolving agent, cement serving as a blending agent and a sound-absorbing and shock-absorbing building material serving as a shock-absorbing material, and then spreading and pressing, wherein the mass ratio of the water to the cement to the sound-absorbing and shock-absorbing building material is 10:4:2-7, the stirring speed is 100-200r/min, the temperature of the spreading and pressing is 100-120 ℃, and the pressing pressure is 0.7-1.3MPa.
From the above description, it can be seen that the present invention has the following advantages:
1. The invention utilizes the characteristics of sepiolite fiber, such as unique physical and chemical properties, high specific surface area and porosity, to form a porous system; the nano silicon dioxide forms good doping under the condition of softening the sepiolite fiber, and utilizes hydroxyl groups expressed by the nano silicon dioxide and Si-OH on the surface of the sepiolite fiber to form a polymerization effect, so that internal solidification is achieved, and the self firm strength is improved.
2. According to the invention, the silanol groups of the sodium methyl silicate and Si-OH in the sepiolite are used for forming dehydration polymerization, and can form stable polymerization with the hydroxyl groups of the nano silicon dioxide, so that a multidimensional polymerization effect is achieved, the stability of sepiolite fibers is realized by keeping the rigidity and the waterproof property, and the stable sealing effect of the sodium methyl silicate and cement is facilitated.
3. The invention utilizes the dissolubility of polystyrene and high-substituted hydroxypropyl cellulose in acetone, can form good permeability, protects sepiolite fiber, achieves a closed-cell sepiolite fiber structure, achieves a closed-cell inner hole damping and sound absorbing effect, and simultaneously has a main chain of the polystyrene as a saturated carbon chain and a side group as a conjugated benzene ring, so that the molecular structure is irregular, the rigidity of molecules is increased, PS becomes an amorphous linear polymer and the high-frequency characteristic is good.
4. The preparation method provided by the invention avoids the problem of water-based aggregation of sodium methyl silicate, gives consideration to the water-based softening property of sepiolite, ensures the aggregation of the rigidity and the water resistance of sepiolite fibers, and simultaneously ensures the self porous property.
Detailed Description
A specific embodiment of the present invention will be described in detail with reference to examples, but the claims of the present invention are not limited thereto.
Example 1
Sound-absorbing and shock-absorbing building material
The building material comprises the following components in percentage by mass: 10g of cement, 20g of sepiolite, 3g of nano silicon oxide, 4g of sodium methyl silicate, 8g of polystyrene, 3g of high-substituted hydroxypropyl cellulose, 10g of acetone and 10g of water.
The preparation method of the building material comprises the following steps:
Step 1, adding high-substituted hydroxypropyl cellulose into acetone, and uniformly stirring to form a dispersion liquid, wherein the stirring speed is 1000r/min; then adding polystyrene into the dispersion liquid, and performing ultrasonic dispersion until slurry is formed, wherein the ultrasonic dispersion temperature is 5 ℃ and the ultrasonic frequency is 40kHz;
Step 2, adding sepiolite into water, uniformly stirring to form uniform suspension, adding nano silicon dioxide, performing ultrasonic dispersion for 10min, and drying to obtain mixed powder and distilled water; the stirring speed of the uniform stirring is 100r/min, the stirring temperature is 60 ℃, the ultrasonic dispersion temperature is 50 ℃, and the ultrasonic frequency is 80kHz; the drying temperature is 120 ℃;
Step 3, adding sodium methyl silicate into the mixed powder, standing for 20min, and carrying out microwave oscillation for 60min to obtain viscous powder, wherein the standing temperature is 30 ℃ and the pressure is 0.3MPa; the microwave power of the microwave oscillation is 400W, and the temperature is 30 ℃;
And step 4, mixing the viscous powder with the slurry, stirring at a constant temperature after low-temperature ultrasonic treatment for 1h, adding cement, continuously stirring, drying to obtain a sound absorption and shock absorption material, recovering waste gas to obtain acetone, wherein the temperature of the low-temperature ultrasonic treatment is 10 ℃, the frequency is 50kHz, the temperature of constant-temperature stirring is 20 ℃, the stirring speed is 100r/min, and the drying temperature is 50 ℃.
The sound-absorbing and shock-absorbing plate is prepared by uniformly stirring water serving as a dissolving agent, cement serving as a blending agent and a sound-absorbing and shock-absorbing building material serving as a shock-absorbing material, and then spreading and pressing, wherein the mass ratio of the water to the cement to the sound-absorbing and shock-absorbing building material is 5:2:1, the stirring speed is 100r/min, the spreading and pressing temperature is 100 ℃, and the pressing pressure is 0.7MPa. The sound absorption and shock absorption has good sound absorption and isolation effects, the average sound absorption coefficient is 0.57, and the sound absorption and shock absorption device also has good compression resistance and high strength characteristics.
Example 2
Sound-absorbing and shock-absorbing building material
The building material comprises the following components in percentage by mass: 20g of cement, 30g of sepiolite, 8g of nano silicon oxide, 8g of sodium methyl silicate, 14g of polystyrene, 8g of high-substituted hydroxypropyl cellulose, 20g of acetone and 20g of water.
The preparation method of the building material comprises the following steps:
step 1, adding high-substituted hydroxypropyl cellulose into acetone, and uniformly stirring to form a dispersion liquid, wherein the stirring speed is 2000r/min; then adding polystyrene into the dispersion liquid, and performing ultrasonic dispersion until slurry is formed, wherein the ultrasonic dispersion temperature is 10 ℃ and the ultrasonic frequency is 90kHz;
step 2, adding sepiolite into water, uniformly stirring to form uniform suspension, adding nano silicon dioxide, performing ultrasonic dispersion for 20min, and drying to obtain mixed powder and distilled water; the stirring speed of the uniform stirring is 200r/min, the stirring temperature is 80 ℃, the ultrasonic dispersion temperature is 80 ℃, and the ultrasonic frequency is 100kHz; the drying temperature is 150 ℃;
Step 3, adding sodium methyl silicate into the mixed powder, standing for 30min, and carrying out microwave oscillation for 60-80min to obtain viscous powder, wherein the standing temperature is 50 ℃ and the pressure is 0.5MPa; the microwave power of the microwave oscillation is 600W, and the temperature is 50 ℃;
And step 4, mixing the viscous powder with the slurry, stirring at a constant temperature after low-temperature ultrasonic treatment for 2 hours, adding cement, continuously stirring, drying to obtain a sound absorption and shock absorption material, recovering waste gas to obtain acetone, wherein the temperature of the low-temperature ultrasonic treatment is 20 ℃, the frequency is 70kHz, the temperature of constant-temperature stirring is 30 ℃, the stirring speed is 200r/min, and the drying temperature is 70 ℃.
The sound-absorbing and shock-absorbing plate is prepared by uniformly stirring water serving as a dissolving agent, cement serving as a blending agent and a sound-absorbing and shock-absorbing building material serving as a shock-absorbing material, and then spreading and pressing, wherein the mass ratio of the water to the cement to the sound-absorbing and shock-absorbing building material is 10:4:7, the stirring speed is 200r/min, the spreading and pressing temperature is 120 ℃, and the pressing pressure is 1.3MPa. The sound absorption and shock absorption has good sound absorption and isolation effects, the average sound absorption coefficient is 0.64, and the sound absorption and shock absorption device also has good compression resistance and high strength characteristics.
Example 3
Sound-absorbing and shock-absorbing building material
The building material comprises the following components in percentage by mass: 15g of cement, 25g of sepiolite, 6g of nano silicon oxide, 6g of sodium methyl silicate, 12g of polystyrene, 8g of high-substituted hydroxypropyl cellulose, 15g of acetone and 15g of water.
The preparation method of the building material comprises the following steps:
Step 1, adding high-substituted hydroxypropyl cellulose into acetone, and uniformly stirring to form a dispersion liquid, wherein the stirring speed is 1500r/min; then adding polystyrene into the dispersion liquid, and performing ultrasonic dispersion until slurry is formed, wherein the ultrasonic dispersion temperature is 8 ℃ and the ultrasonic frequency is 70kHz;
Step 2, adding sepiolite into water, uniformly stirring to form uniform suspension, adding nano silicon dioxide, performing ultrasonic dispersion for 15min, and drying to obtain mixed powder and distilled water; the stirring speed of the uniform stirring is 150r/min, the stirring temperature is 70 ℃, the ultrasonic dispersion temperature is 70 ℃, and the ultrasonic frequency is 90kHz; the drying temperature is 140 ℃;
Step 3, adding sodium methyl silicate into the mixed powder, standing for 25min, and carrying out microwave oscillation for 60-80min to obtain viscous powder, wherein the standing temperature is 40 ℃ and the pressure is 0.4MPa; the microwave power of the microwave oscillation is 500W, and the temperature is 40 ℃;
And step 4, mixing the viscous powder with the slurry, stirring at a constant temperature after low-temperature ultrasonic treatment for 1-2 hours, adding cement, continuously stirring, drying to obtain a sound absorption and shock absorption material, recovering waste gas to obtain acetone, wherein the temperature of the low-temperature ultrasonic treatment is 15 ℃, the frequency is 60kHz, the temperature of constant-temperature stirring is 25 ℃, the stirring speed is 150r/min, and the drying temperature is 60 ℃.
The sound-absorbing and shock-absorbing plate is prepared by uniformly stirring water serving as a dissolving agent, cement serving as a blending agent and a sound-absorbing and shock-absorbing building material serving as a shock-absorbing material, and then spreading and pressing, wherein the mass ratio of the water to the cement to the sound-absorbing and shock-absorbing building material is 10:4:5, the stirring speed is 150r/min, the spreading and pressing temperature is 110 ℃, and the pressing pressure is 1.2MPa. The sound absorption and shock absorption has good sound absorption and isolation effects, the average sound absorption coefficient is 0.59, and the sound absorption and shock absorption device also has good compression resistance and high strength characteristics.
In summary, the invention has the following advantages:
1. The invention utilizes the characteristics of sepiolite fiber, such as unique physical and chemical properties, high specific surface area and porosity, to form a porous system; the nano silicon dioxide forms good doping under the condition of softening the sepiolite fiber, and utilizes hydroxyl groups expressed by the nano silicon dioxide and Si-OH on the surface of the sepiolite fiber to form a polymerization effect, so that internal solidification is achieved, and the self firm strength is improved.
2. According to the invention, the silanol groups of the sodium methyl silicate and Si-OH in the sepiolite are used for forming dehydration polymerization, and can form stable polymerization with the hydroxyl groups of the nano silicon dioxide, so that a multidimensional polymerization effect is achieved, the stability of sepiolite fibers is realized by keeping the rigidity and the waterproof property, and the stable sealing effect of the sodium methyl silicate and cement is facilitated.
3. The invention utilizes the dissolubility of polystyrene and high-substituted hydroxypropyl cellulose in acetone, can form good permeability, protects sepiolite fiber, achieves a closed-cell sepiolite fiber structure, achieves a closed-cell inner hole damping and sound absorbing effect, and simultaneously has a main chain of the polystyrene as a saturated carbon chain and a side group as a conjugated benzene ring, so that the molecular structure is irregular, the rigidity of molecules is increased, PS becomes an amorphous linear polymer and the high-frequency characteristic is good.
4. The preparation method provided by the invention avoids the problem of water-based aggregation of sodium methyl silicate, gives consideration to the water-based softening property of sepiolite, ensures the aggregation of the rigidity and the water resistance of sepiolite fibers, and simultaneously ensures the self porous property.
It is to be understood that the foregoing detailed description of the invention is merely illustrative of the invention and is not limited to the embodiments of the invention. It will be understood by those of ordinary skill in the art that the present invention may be modified or substituted for elements thereof to achieve the same technical effects; as long as the use requirement is met, the invention is within the protection scope of the invention.
Claims (3)
1. The utility model provides a inhale sound shock attenuation building material which characterized in that: the building material comprises the following components in percentage by mass: 10-20 parts of cement, 20-30 parts of sepiolite, 3-8 parts of nano silicon oxide, 4-8 parts of sodium methyl silicate, 8-14 parts of polystyrene, 3-8 parts of high-substituted hydroxypropyl cellulose, 10-20 parts of acetone and 10-20 parts of water;
the preparation method of the building material comprises the following steps:
step 1, adding high-substituted hydroxypropyl cellulose into acetone, and uniformly stirring to form a dispersion liquid, wherein the stirring speed is 1000-2000r/min; then adding polystyrene into the dispersion liquid, and performing ultrasonic dispersion until slurry is formed, wherein the ultrasonic dispersion temperature is 5-10 ℃ and the ultrasonic frequency is 40-90kHz;
step 2, adding sepiolite into water, uniformly stirring to form uniform suspension, adding nano silicon dioxide, performing ultrasonic dispersion for 10-20min, and drying to obtain mixed powder and distilled water;
step 3, adding sodium methyl silicate into the mixed powder, standing for 20-30min, and carrying out microwave oscillation for 60-80min to obtain viscous powder;
step 4, mixing the viscous powder with the slurry, stirring at a constant temperature after low-temperature ultrasonic treatment for 1-2 hours, adding cement, continuously stirring, drying to obtain a sound absorption and shock absorption material, and recycling waste gas to obtain acetone;
The stirring speed of the uniform stirring in the step 2 is 100-200r/min, the stirring temperature is 60-80 ℃, the ultrasonic dispersing temperature is 50-80 ℃, and the ultrasonic frequency is 80-100kHz; the drying temperature is 120-150 ℃;
The standing temperature in the step 3 is 30-50 ℃ and the pressure is 0.3-0.5MPa; the microwave power of the microwave oscillation is 400-600W, and the temperature is 30-50 ℃;
the low-temperature ultrasonic wave in the step 4 has the temperature of 10-20 ℃, the frequency of 50-70kHz, the constant-temperature stirring temperature of 20-30 ℃, the stirring speed of 100-200r/min and the drying temperature of 50-70 ℃.
2. The utility model provides a inhale sound damper which characterized in that: the sound-absorbing and shock-absorbing building material is prepared by uniformly stirring water serving as a dissolving agent, cement serving as a blending agent and the sound-absorbing and shock-absorbing building material as claimed in claim 1, and then spreading and pressing.
3. The sound absorbing and vibration reducing panel of claim 2, wherein: the mass ratio of the water to the cement to the sound-absorbing and shock-absorbing building material is 10:4:2-7, the stirring speed is 100-200r/min, the temperature of tiling and pressing is 100-120 ℃, and the pressing pressure is 0.7-1.3MPa.
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| CN202111469710.5A CN114014599A (en) | 2021-12-03 | 2021-12-03 | Sound-absorbing and shock-absorbing building material and preparation method thereof |
| CN2021114697105 | 2021-12-03 |
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| GB1563593A (en) * | 1975-12-09 | 1980-03-26 | Chiyoda Chem Eng Construct Co | Catalysts for demtallization tretment of hydrocarbons supported on sepiolite |
| CN108726951A (en) * | 2018-07-12 | 2018-11-02 | 安徽省绩溪县华宇防火滤料有限公司 | A kind of Outer wall fireproof heat-insulation material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100575414C (en) * | 2007-09-18 | 2009-12-30 | 韩志同 | Water-proof, heat-preserving and heat-insulating micro applying material for wall |
| CN108239528A (en) * | 2016-12-23 | 2018-07-03 | 中石化石油工程技术服务有限公司 | A kind of oil base drilling fluid |
| CN108358532A (en) * | 2017-07-01 | 2018-08-03 | 太仓安托建筑材料有限公司 | A kind of sound-absorbing New Building Materials |
| CN107840614A (en) * | 2017-11-21 | 2018-03-27 | 马鞍山松鹤信息科技有限公司 | A kind of novel self-heat preserving concrete slab and preparation method thereof |
| CN112194427B (en) * | 2019-11-30 | 2022-01-21 | 海盐沈荡南方混凝土有限公司 | Preparation method of high-waterproof corrosion-resistant concrete |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1563593A (en) * | 1975-12-09 | 1980-03-26 | Chiyoda Chem Eng Construct Co | Catalysts for demtallization tretment of hydrocarbons supported on sepiolite |
| CN108726951A (en) * | 2018-07-12 | 2018-11-02 | 安徽省绩溪县华宇防火滤料有限公司 | A kind of Outer wall fireproof heat-insulation material and preparation method thereof |
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| CN114014599A (en) | 2022-02-08 |
| CN116462450A (en) | 2023-07-21 |
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