CN111809791A - Sound-absorbing heat-insulating brick and preparation method thereof - Google Patents
Sound-absorbing heat-insulating brick and preparation method thereof Download PDFInfo
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- CN111809791A CN111809791A CN202010712996.4A CN202010712996A CN111809791A CN 111809791 A CN111809791 A CN 111809791A CN 202010712996 A CN202010712996 A CN 202010712996A CN 111809791 A CN111809791 A CN 111809791A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
- E04C1/40—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
- E04C1/41—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts composed of insulating material and load-bearing concrete, stone or stone-like material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/003—Pressing by means acting upon the material via flexible mould wall parts, e.g. by means of inflatable cores, isostatic presses
-
- 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
- C04B28/24—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 containing alkyl, ammonium or metal silicates; containing silica sols
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a sound-absorbing heat-insulating brick, which comprises a heat-insulating blank and a sound-absorbing body, wherein the heat-insulating blank is a hollow cuboid, and the sound-absorbing body is filled in the heat-insulating blank; the heat insulation blank comprises perlite, vitrified micro bubbles and chopped glass fibers, and the sound absorption body comprises PU foam particles and PS foam particles. The perlite and the vitrified micro bubbles are used as main materials of the heat insulation blank, so that the heat insulation blank has the functions of heat insulation and heat absorption, and the mechanical strength of the heat insulation blank can be enhanced by adding a certain amount of chopped glass fibers, thereby ensuring that the heat insulation blank still has enough strength after a cavity is drilled; the sound absorption body adopts PU foam particles and PS foam particles as sound absorption main bodies, is bonded into a block shape by molten polyvinyl acetate, and is easy to process into a strip shape. The sound-absorbing heat-insulating brick is prepared by filling the sound-absorbing body with the sound-absorbing function in the hollow heat-insulating blank, has the functions of heat insulation and sound absorption, and can be applied to non-bearing outer walls of buildings.
Description
Technical Field
The invention relates to the field of building materials, in particular to a sound-absorbing heat-insulating brick and a preparation method thereof.
Background
The heat insulating brick is a heat insulating product with regular shape, belongs to light heat insulating refractory material, is mainly used for heat insulating engineering of building roofs, inner and outer wall surfaces and inner and outer roofs of building foundations of a pitched roof, and has the function of preventing heat radiation of the sun or stopping indoor heat from being transmitted outside, so that the indoor temperature fluctuates in a smaller range. Traditional insulating brick is used in the outer wall, only can play thermal-insulated effect, along with the upgrading needs of experiencing living, and is more and more to the demand of multi-functional building brick.
Disclosure of Invention
The invention provides a sound-absorbing heat-insulating brick aiming at the problem of single function of the existing heat-insulating brick, which comprises a heat-insulating blank and a sound-absorbing body, wherein the heat-insulating blank is a hollow cuboid, and the sound-absorbing body is filled in the heat-insulating blank; the heat insulation blank comprises perlite, vitrified micro bubbles and chopped glass fibers, and the sound absorption body comprises PU foam particles and PS foam particles.
Further, the heat insulation blank comprises the following components in parts by weight: 50-70 parts of perlite, 30-45 parts of vitrified micro bubbles, 5-8 parts of chopped glass fiber and 40-70 parts of silicon dioxide hydrosol; the sound absorption body comprises the following components in parts by weight: 55-65% of PU foam particles, 25-30% of PS foam particles and 5-20% of polyvinyl acetate powder.
Inhale the individual more of sound body, inhale the effect of sound better, so can set up the square chamber of a plurality of parallels in thermal-insulated blank in order to load and inhale the sound body, synthesize the difficult and easy degree and the sound absorption effect of preparation, can set up the square chamber of 2-6 parallels in thermal-insulated blank.
The preparation method of the sound-absorbing heat-insulating brick comprises the following steps:
1) preparation of the Heat insulating blank
Weighing the components of the heat insulation blank according to the weight parts, grinding perlite, filtering to obtain powder of 100-mesh and 300-mesh, fully mixing the powder with vitrified micro bubbles and chopped glass fiber, adding the mixture into 60 wt% of silica hydrosol, fully stirring to obtain slurry, pouring the slurry into a metal square plate, carrying out static pressure of 30-50MPa for 10-15min, drying at the temperature of 100-mesh and 150 ℃, naturally cooling, demoulding, cutting into required size to obtain a green brick, and drilling cavities with required size and quantity on the green brick to obtain the heat insulation blank;
2) preparation of Sound-absorbing body
Weighing the components of the sound-absorbing body according to the weight percentage, mixing, putting into a stirring kettle, stirring for 30min at the temperature of 80-90 ℃, discharging into a tray, uniformly smearing, carrying out static pressure of 5-10MPa, naturally cooling, and cutting into a shape consistent with the cavity of the heat-insulating blank obtained in the step 1) to obtain the sound-absorbing body;
3) assembling and forming
Spraying a moisture-curing polyurethane adhesive in the cavity of the heat insulation blank obtained in the step 1), soaking the sound absorption body obtained in the step 2) in water for 1-2min, then putting the sound absorption body into the water, standing for 2h, then transferring the sound absorption body into a drying oven, drying the sound absorption body at 60 ℃, naturally cooling the sound absorption body, and then polishing the sound absorption body to be flat, thus obtaining the sound absorption.
The invention has the beneficial effects that: the perlite and the vitrified micro bubbles are used as main materials of the heat insulation blank, so that the heat insulation blank has the functions of heat insulation and heat absorption, and the mechanical strength of the heat insulation blank can be enhanced by adding a certain amount of chopped glass fibers, thereby ensuring that the heat insulation blank still has enough strength after a cavity is drilled; the sound absorption body adopts PU foam particles and PS foam particles as sound absorption main bodies, is bonded into a block shape by molten polyvinyl acetate, and is easy to process into a strip shape. The sound-absorbing heat-insulating brick is prepared by filling the sound-absorbing body with the sound-absorbing function in the hollow heat-insulating blank, has the functions of heat insulation and sound absorption, and can be applied to non-bearing outer walls of buildings.
Detailed Description
The present invention is described below with reference to examples, which are provided for illustration only and are not intended to limit the scope of the present invention.
Example 1
The utility model provides a inhale sound insulating brick, the size is 240mm, 115mm, 53mm thick for length, including heat insulating blank and inhale the sound body, it has two cuboid cavities that are on a parallel with the bottom surface to open evenly the chisel on the thickness direction of heat insulating blank, and the size is 200mm, 100mm wide, 15mm thick deeply, inhales the sound body size and is unanimous with the cavity, fills in the cavity.
The preparation method of the sound-absorbing and heat-insulating brick comprises the following steps:
1) preparing a heat insulation blank: weighing 50 parts of perlite, 45 parts of vitrified micro bubbles, 8 parts of chopped glass fiber and 70 parts of silica hydrosol according to parts by weight, grinding the perlite, filtering to obtain powder between 100 plus 300 meshes, fully mixing the powder with the vitrified micro bubbles and the chopped glass fiber, adding the powder into 60 wt% of the silica hydrosol, fully stirring to prepare slurry, pouring the slurry into a metal square plate, carrying out static pressure at 50MPa for 10min, then drying at 150 ℃, naturally cooling, then demoulding, cutting into required size, preparing green bricks, and cutting cavities with required size and number on the green bricks to prepare heat-insulating blanks;
2) preparing a sound absorbing body: weighing 65% of PU foam particles, 30% of PS foam particles and 5% of polyvinyl acetate powder according to weight percentage, mixing, putting into a stirring kettle, stirring for 30min at 90 ℃, discharging into a tray, uniformly smearing, then carrying out static pressure of 10MPa, naturally cooling, and cutting into a shape consistent with the cavity of the heat insulation blank obtained in the step 1), thus obtaining the sound absorption body;
3) assembling and forming: spraying a moisture-curing polyurethane adhesive in the cavity of the heat insulation blank obtained in the step 1), soaking the sound absorption body obtained in the step 2) in water for 1-2min, then putting the sound absorption body into the water, standing for 2h, then transferring the sound absorption body into a drying oven, drying the sound absorption body at 60 ℃, naturally cooling the sound absorption body, and then polishing the sound absorption body to be flat, thus obtaining the sound absorption.
Example 2
The utility model provides a inhale sound insulating brick, the size is 240mm, 115mm wide, 53mm thick for length, including heat insulating blank and inhale the sound body, evenly chiseling on the length direction of heat insulating blank has six cuboid cavities that are on a parallel with less side, and the size is dark 100mm, wide 40mm, thick 20mm, inhales the sound body size and is unanimous with the cavity, fills in the cavity.
The preparation method of the sound-absorbing and heat-insulating brick comprises the following steps:
1) preparing a heat insulation blank: weighing 60 parts of perlite, 40 parts of vitrified micro bubbles, 6 parts of chopped glass fiber and 55 parts of silica hydrosol according to parts by weight, grinding the perlite, filtering to obtain powder between 100 plus and 300 meshes, fully mixing the powder with the vitrified micro bubbles and the chopped glass fiber, adding the powder into 60 wt% of the silica hydrosol, fully stirring to prepare slurry, pouring the slurry into a metal square plate, carrying out static pressure at 40MPa for 12min, then drying at 125 ℃, naturally cooling, then demoulding, cutting into required size, preparing green bricks, and cutting cavities with required size and number on the green bricks to prepare heat-insulating blanks;
2) preparing a sound absorbing body: weighing 60% of PU foam particles, 28% of PS foam particles and 12% of polyvinyl acetate powder according to weight percentage, mixing, putting into a stirring kettle, stirring for 30min at 85 ℃, discharging into a tray, uniformly smearing, then carrying out static pressure of 8MPa, naturally cooling, and cutting into a shape consistent with the cavity of the heat insulation blank obtained in the step 1), thus obtaining the sound absorption body;
3) assembling and forming: spraying a moisture-curing polyurethane adhesive in the cavity of the heat insulation blank obtained in the step 1), soaking the sound absorption body obtained in the step 2) in water for 1-2min, then putting the sound absorption body into the water, standing for 2h, then transferring the sound absorption body into a drying oven, drying the sound absorption body at 60 ℃, naturally cooling the sound absorption body, and then polishing the sound absorption body to be flat, thus obtaining the sound absorption.
Example 3
The utility model provides a inhale sound insulating brick, the size is 240mm, wide 115mm, thick 53mm for length, including heat insulating blank and inhale the sound body, evenly division chisel on the width direction of heat insulating blank has 4 cuboid cavities that are on a parallel with great side, and the size is 200mm, wide 40mm, thick 20mm deeply, inhales the sound body size and is unanimous with the cavity, fills in the cavity.
The preparation method of the sound-absorbing and heat-insulating brick comprises the following steps:
1) preparing a heat insulation blank: weighing 70 parts of perlite, 30 parts of vitrified micro bubbles, 5 parts of chopped glass fiber and 40 parts of silica hydrosol according to parts by weight, grinding the perlite, filtering to obtain powder between 100 plus 300 meshes, fully mixing the powder with the vitrified micro bubbles and the chopped glass fiber, adding the powder into 60 wt% of the silica hydrosol, fully stirring to prepare slurry, pouring the slurry into a metal square plate, carrying out static pressure for 15min at 30MPa, drying at 100 ℃, naturally cooling, demoulding, cutting into required size, preparing green bricks, and cutting cavities with required size and number on the green bricks to prepare heat-insulating blanks;
2) preparing a sound absorbing body: weighing 55% of PU foam particles, 25% of PS foam particles and 520% of polyvinyl acetate powder according to weight percentage, mixing, putting into a stirring kettle, stirring for 30min at 80 ℃, discharging into a tray, uniformly smearing, then carrying out static pressure of 5MPa, naturally cooling, and cutting into a shape consistent with the cavity of the heat insulation blank obtained in the step 1), thus obtaining the sound absorption body;
3) assembling and forming: spraying a moisture-curing polyurethane adhesive in the cavity of the heat insulation blank obtained in the step 1), soaking the sound absorption body obtained in the step 2) in water for 1-2min, then putting the sound absorption body into the water, standing for 2h, then transferring the sound absorption body into a drying oven, drying the sound absorption body at 60 ℃, naturally cooling the sound absorption body, and then polishing the sound absorption body to be flat, thus obtaining the sound absorption.
Comparative example 1
An insulating brick was a green brick obtained in example 1.
Comparative example 2
The sound-absorbing member obtained by the method of example 1 was cut to a length of 240mm, a width of 115mm and a thickness of 53 mm.
The heat insulating properties of the acoustical tiles of examples 1 to 3 and the heat insulating tile of comparative example 1 were evaluated, and the results are shown in Table 1.
TABLE 1 Heat insulation test
Note: 1. the detection execution standard of the heat insulation performance is GB/T10294-2008; 2. the execution standard of the impact strength is GB/T15231.5-1994.
The sound-absorbing performance test was carried out on the sound-absorbing and heat-insulating bricks of examples 1 to 3, the heat-insulating brick of comparative example 1 and the sound-absorbing body of comparative example 2, and the results are shown in Table 2.
TABLE 2 test for Sound absorption Properties (GB/T20247)
| Frequency (Hz) | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 |
| 400 | 0.36 | 0.41 | 0.33 | 0.25 | 0.44 |
| 1000 | 0.66 | 0.74 | 0.61 | 0.34 | 0.83 |
| 4000 | 0.85 | 0.93 | 0.78 | 0.47 | 1.01 |
| 8000 | 0.89 | 0.96 | 0.86 | 0.56 | 1.05 |
| 10000 | 0.91 | 1.00 | 0.88 | 0.65 | 1.07 |
As can be seen from the combination of the test data in tables 1 and 2, the acoustical insulation bricks of examples 1-3 have a certain degree of reduction in both insulation and strength, but have a significant acoustical absorption performance, compared to the pure green bricks of comparative example 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The sound-absorbing and heat-insulating brick is characterized by comprising a heat-insulating blank and a sound-absorbing body, wherein the heat-insulating blank is a hollow cuboid, and the sound-absorbing body is filled in the heat-insulating blank; the heat insulation blank comprises perlite, vitrified micro bubbles and chopped glass fibers, and the sound absorption body comprises PU foam particles and PS foam particles.
2. The sound-absorbing and heat-insulating brick according to claim 1, wherein the heat-insulating blank comprises the following components in parts by weight: 50-70 parts of perlite, 30-45 parts of vitrified micro bubbles, 5-8 parts of chopped glass fiber and 40-70 parts of silicon dioxide hydrosol.
3. The sound-absorbing and heat-insulating brick according to claim 1 or 2, wherein the sound-absorbing body consists of the following components in parts by weight: 55-65% of PU foam particles, 25-30% of PS foam particles and 5-20% of polyvinyl acetate powder.
4. The sound-absorbing and heat-insulating brick according to any one of claims 1 to 3, wherein 2 to 6 parallel square cavities are formed in the heat-insulating blank.
5. A method for preparing the sound-absorbing and heat-insulating brick according to any one of claims 1 to 4, comprising the steps of:
1) preparation of the Heat insulating blank
Weighing the components of the heat insulation blank according to the weight parts, grinding perlite, filtering to obtain powder of 100-mesh and 300-mesh, fully mixing the powder with vitrified micro bubbles and chopped glass fiber, adding the mixture into 60 wt% of silica hydrosol, fully stirring to obtain slurry, pouring the slurry into a metal square plate, carrying out static pressure of 30-50MPa for 10-15min, drying at the temperature of 100-mesh and 150 ℃, naturally cooling, demoulding, cutting into required size to obtain a green brick, and drilling cavities with required size and quantity on the green brick to obtain the heat insulation blank;
2) preparation of Sound-absorbing body
Weighing the components of the sound-absorbing body according to the weight percentage, mixing, putting into a stirring kettle, stirring for 30min at the temperature of 80-90 ℃, discharging into a tray, uniformly smearing, carrying out static pressure of 5-10MPa, naturally cooling, and cutting into a shape consistent with the cavity of the heat-insulating blank obtained in the step 1) to obtain the sound-absorbing body;
3) assembling and forming
Spraying a moisture-curing polyurethane adhesive in the cavity of the heat insulation blank obtained in the step 1), soaking the sound absorption body obtained in the step 2) in water for 1-2min, then putting the sound absorption body into the water, standing for 2h, then transferring the sound absorption body into a drying oven, drying the sound absorption body at 60 ℃, naturally cooling the sound absorption body, and then polishing the sound absorption body to be flat, thus obtaining the sound absorption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010712996.4A CN111809791A (en) | 2020-07-22 | 2020-07-22 | Sound-absorbing heat-insulating brick and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010712996.4A CN111809791A (en) | 2020-07-22 | 2020-07-22 | Sound-absorbing heat-insulating brick and preparation method thereof |
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| CN111809791A true CN111809791A (en) | 2020-10-23 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2365291Y (en) * | 1999-03-23 | 2000-02-23 | 郑连舫 | Expanded perlite hollow block |
| JP2003013512A (en) * | 2001-06-28 | 2003-01-15 | Kuwaharagumi | Construction material using rice husks |
| CN102635191A (en) * | 2012-05-07 | 2012-08-15 | 湘潭市格物节能建材有限公司 | Concrete block and concrete masonry |
| CN102912926A (en) * | 2012-11-06 | 2013-02-06 | 沈阳建筑大学 | Thermal-bridge-free thermal insulation building block made of straw and raw soil and producing method thereof |
| CN203284941U (en) * | 2013-03-24 | 2013-11-13 | 李洲 | Light compound porous self-heat insulation building block |
| CN105948679A (en) * | 2016-04-29 | 2016-09-21 | 景德镇陶瓷大学 | Unburned water-permeable brick with solid wastes as base materials and preparation method thereof |
-
2020
- 2020-07-22 CN CN202010712996.4A patent/CN111809791A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2365291Y (en) * | 1999-03-23 | 2000-02-23 | 郑连舫 | Expanded perlite hollow block |
| JP2003013512A (en) * | 2001-06-28 | 2003-01-15 | Kuwaharagumi | Construction material using rice husks |
| CN102635191A (en) * | 2012-05-07 | 2012-08-15 | 湘潭市格物节能建材有限公司 | Concrete block and concrete masonry |
| CN102912926A (en) * | 2012-11-06 | 2013-02-06 | 沈阳建筑大学 | Thermal-bridge-free thermal insulation building block made of straw and raw soil and producing method thereof |
| CN203284941U (en) * | 2013-03-24 | 2013-11-13 | 李洲 | Light compound porous self-heat insulation building block |
| CN105948679A (en) * | 2016-04-29 | 2016-09-21 | 景德镇陶瓷大学 | Unburned water-permeable brick with solid wastes as base materials and preparation method thereof |
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Application publication date: 20201023 |
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