CN109401371B - Spraying sound-absorbing material - Google Patents
Spraying sound-absorbing material Download PDFInfo
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- CN109401371B CN109401371B CN201811146042.0A CN201811146042A CN109401371B CN 109401371 B CN109401371 B CN 109401371B CN 201811146042 A CN201811146042 A CN 201811146042A CN 109401371 B CN109401371 B CN 109401371B
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- sound absorption
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- absorption material
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- aggregate
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- 239000011358 absorbing material Substances 0.000 title claims abstract description 22
- 238000005507 spraying Methods 0.000 title claims abstract description 18
- 238000010521 absorption reaction Methods 0.000 claims abstract description 82
- 239000000463 material Substances 0.000 claims abstract description 82
- 239000002344 surface layer Substances 0.000 claims abstract description 59
- 239000010410 layer Substances 0.000 claims abstract description 55
- 239000004568 cement Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 33
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 26
- 239000011398 Portland cement Substances 0.000 claims abstract description 25
- 239000000654 additive Substances 0.000 claims abstract description 24
- 230000000996 additive effect Effects 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 239000006004 Quartz sand Substances 0.000 claims abstract description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000004816 latex Substances 0.000 claims abstract description 17
- 229920000126 latex Polymers 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 17
- 229910021487 silica fume Inorganic materials 0.000 claims abstract description 17
- 230000015271 coagulation Effects 0.000 claims abstract description 15
- 238000005345 coagulation Methods 0.000 claims abstract description 15
- 239000002253 acid Substances 0.000 claims abstract description 11
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 11
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims abstract description 11
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims abstract description 11
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims abstract description 11
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000839 emulsion Substances 0.000 claims abstract description 10
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 9
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims abstract description 6
- 229910052808 lithium carbonate Inorganic materials 0.000 claims abstract description 6
- CBOCVOKPQGJKKJ-UHFFFAOYSA-L Calcium formate Chemical group [Ca+2].[O-]C=O.[O-]C=O CBOCVOKPQGJKKJ-UHFFFAOYSA-L 0.000 claims abstract description 5
- 229940044172 calcium formate Drugs 0.000 claims abstract description 5
- 239000004281 calcium formate Substances 0.000 claims abstract description 5
- 235000019255 calcium formate Nutrition 0.000 claims abstract description 5
- 239000000565 sealant Substances 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims description 21
- 239000004744 fabric Substances 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 8
- 239000012615 aggregate Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 17
- 239000012784 inorganic fiber Substances 0.000 description 10
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 4
- 239000011094 fiberboard Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229920001410 Microfiber Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000003658 microfiber Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
Abstract
The invention discloses a spraying sound-absorbing material, which comprises a base layer sound-absorbing material, a surface layer sound-absorbing material and a sealing agent, wherein the base layer sound-absorbing material is prepared from raw materials of base layer cement, base layer aggregate, a reinforcing agent, an additive, a pour point regulator and water; the surface layer sound absorption material is prepared from raw materials of surface layer cement, surface layer aggregate, a reinforcing agent, an additive, a coagulation regulator, hydroxypropyl methyl cellulose ether and water. The base cement is portland cement or ordinary portland cement, the base aggregate is quartz sand, the reinforcing agent is prepared from raw materials of silica fume and redispersible latex powder, the additive is a polycarboxylic acid high-performance water reducing agent, the setting regulator is calcium formate or lithium carbonate, the surface cement is white portland cement, the surface aggregate is colored quartz sand, and the sealant is styrene-acrylic emulsion. The invention can be used for large-area construction quickly, and has the advantages of low rebound rate, high strength, weather resistance, good sound absorption performance, excellent fireproof performance, environmental protection, strong decorative effect and low manufacturing cost.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to a spraying sound absorption material.
Background
When inorganic fiber sound-absorbing cotton spraying construction is performed indoors such as in a machine room, the surface of a spraying layer of a cotton material is fluffy due to loose texture of the spraying layer, and the forming appearance effect is poor. Moreover, the cotton material is loose in texture and low in strength, is easy to be damaged due to accidental collision, is easy to be wetted or fiberized in long-term use, falls and cakes due to wetting, and influences the sound absorption performance, and meanwhile, dust and microfibers formed after cotton aging scatter, so that the atmospheric environment is polluted.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a spraying sound-absorbing material, aiming at solving the problems of poor sound-absorbing effect, environmental pollution and short service life of the sound-absorbing material in the prior art.
The technical scheme is as follows: in order to solve the problems, the technical scheme adopted by the invention is as follows:
a spraying sound absorption material consists of a base layer sound absorption material, a surface layer sound absorption material and a sealing agent; the sound-absorbing material consists of a base layer sound-absorbing material, a surface layer sound-absorbing material and a sealing agent; the mass ratio of the base layer sound-absorbing material to the surface layer sound-absorbing material is 1-3: 1, and the sealing agent is 20-25 kg/m2；
The base layer sound absorption material is prepared from raw materials of base cement, base aggregate, reinforcing agent, additive, coagulation regulator and water; the surface layer sound absorption material is prepared from raw materials of surface layer cement, surface layer aggregate, a reinforcing agent, an additive, a coagulation regulator, hydroxypropyl methyl cellulose ether and water; the sealant is styrene-acrylic emulsion;
the base cement is Portland cement or ordinary Portland cement, and the base aggregate is quartz sand; the surface cement is white portland cement, and the surface aggregate particles are colored quartz sand; the reinforcing agent is prepared from raw materials of silica fume and redispersible latex powder, the additive is a polycarboxylic acid high-performance water reducing agent, and the coagulation regulator is calcium formate or lithium carbonate.
Preferably, the base sound-absorbing material comprises, by mass, 20-25% of base cement, 70-75% of base aggregate, 1.0-2.0% of reinforcing agent, 0.3-0.5% of additive, 0.1-0.2% of setting regulator and 3.5-4.5% of water.
Preferably, the surface layer sound absorption material comprises, by mass, 24-28% of surface layer cement, 65-70% of surface layer aggregate, 1.5-2.0% of a reinforcing agent, 0.3-0.5% of an additive, 0.1-0.2% of a pour regulator, 0.02-0.03% of hydroxypropyl methyl cellulose ether and 4.0-5.0% of water.
Preferably, an inorganic fiber mesh cloth is arranged between the base layer sound absorption material and the surface layer sound absorption material.
Preferably, the strength grade of the portland cement is greater than or equal to 52.5 grade.
Preferably, the particle size of the quartz sand in the base aggregate is 0.5-1.0 mm.
Preferably, the reinforcing agent comprises 90-95% of silica fume and 5-10% of redispersible latex powder by mass.
Preferably, the water reducing rate of the polycarboxylic acid high-performance water reducing agent is more than or equal to 30%.
Preferably, the white portland cement has a strength grade of > 42.5.
Preferably, the particle size of the colored quartz sand is 0.2-0.5 mm.
Has the advantages that: compared with the prior art, the invention has the advantages that:
(1) the invention adopts cement inorganic cementing material to replace traditional organic cementing agent, which is harmless to human body and has good durability.
(2) The invention adopts the granular material to replace the inorganic fiber material, has compact structure and high strength, effectively avoids the phenomena of surface fluffing and collision loss of the inorganic fiber spraying layer and has good decorative effect.
(3) The sound absorption material can be used for rapid large-area seamless construction, and is weather-proof, moisture-proof and environment-friendly.
(4) The invention has the advantages of high bonding strength, low rebound rate, high strength, good sound absorption performance and excellent fireproof performance.
(5) The invention has the advantages of strong decorative effect and low manufacturing cost.
Detailed Description
The following describes in detail embodiments of the present invention with reference to specific examples.
Example 1
The spraying sound absorption material consists of a base layer sound absorption material, a surface layer sound absorption material and a sealing agent; the mass ratio of the base layer sound absorption material to the surface layer sound absorption material is 1: 1, and the sealing agent is 20kg/m2. Inorganic fiber mesh cloth is arranged between the base layer sound absorption material and the surface layer sound absorption material, and the sealing agent adopts styrene-acrylic emulsion; the base layer sound absorption material is prepared by stirring and mixing 20 mass percent of base layer cement, 75 mass percent of base layer aggregate, 1 mass percent of reinforcing agent, 0.3 mass percent of additive, 0.2 mass percent of setting regulator and 3.5 mass percent of water; the surface layer sound absorption material is prepared by stirring and mixing 25 mass percent of surface layer cement, 68 mass percent of surface layer aggregate, 1.5 mass percent of reinforcing agent, 0.3 mass percent of additive, 0.2 mass percent of setting regulator, 0.02 mass percent of hydroxypropyl methyl cellulose ether and 4.98 mass percent of water.
The basic cement is Portland cement with the strength of 52.5 grade, and the basic aggregate is quartz sand with the particle size of 0.5 mm; the surface cement is white portland cement with the strength of 52.5 grade, and the surface aggregate is colored quartz sand with the grain diameter of 0.2 mm; the reinforcing agent is prepared by stirring and mixing silica fume and redispersible latex powder, wherein the mass ratio of the silica fume is 90%, the weight part of the redispersible latex powder is 10%, the admixture adopts a polycarboxylic acid high-performance water reducing agent with the water reducing rate of 30%, and the coagulation regulator adopts calcium formate.
Example 2
The spraying sound absorption material consists of a base layer sound absorption material, a surface layer sound absorption material and a sealing agent; the mass ratio of the base layer sound absorption material to the surface layer sound absorption material is 1: 1, and the sealing agent is 20kg/m2. Inorganic fiber mesh cloth is arranged between the base layer sound absorption material and the surface layer sound absorption material, and the sealing agent adopts styrene-acrylic emulsion.
The base layer sound absorption material is prepared from 24% of base layer cement, 70% of base layer aggregate, 1.5% of reinforcing agent, 0.4% of additive, 0.15% of coagulation regulator and 3.95% of water in percentage by mass; the surface layer sound absorption material is prepared by stirring and mixing 28 mass percent of surface layer cement, 65 mass percent of surface layer aggregate, 1.8 mass percent of reinforcing agent, 0.3 mass percent of additive, 0.1 mass percent of setting regulator, 0.03 mass percent of hydroxypropyl methyl cellulose ether and 4.77 mass percent of water; the sealant adopts styrene-acrylic emulsion.
The basic cement is Portland cement with the strength of 52.5 grades, and the basic aggregate is quartz sand with the particle size of 1.0 mm; the surface cement is white portland cement with the strength of 52.5 grade, and the surface aggregate particles are colored quartz sand with the particle size of 0.5 mm; the reinforcing agent is prepared by stirring and mixing silica fume and redispersible latex powder, wherein the mass ratio of the silica fume is 92%, the mass ratio of the redispersible latex powder is 8%, the admixture adopts a polycarboxylic acid high-performance water reducing agent with the water reducing rate of 30%, and the coagulation regulator adopts calcium formate.
Example 3
The spraying sound absorption material consists of a base layer sound absorption material, a surface layer sound absorption material and a sealing agent; the mass ratio of the base layer sound absorption material to the surface layer sound absorption material is 2: 1, and the sealing agent is 23kg/m2. Between the base layer sound-absorbing material and the surface layer sound-absorbing material is setThe inorganic fiber mesh cloth and the sealant adopt styrene-acrylic emulsion.
The base layer sound absorption material is prepared by stirring and mixing 21 mass percent of base layer cement, 72 mass percent of base layer aggregate, 2 mass percent of reinforcing agent, 0.5 mass percent of additive, 0.2 mass percent of setting regulator and 4.3 mass percent of water; the surface layer sound absorption material is prepared by stirring and mixing 24 mass percent of surface layer cement, 69 mass percent of surface layer aggregate, 2 mass percent of reinforcing agent, 0.5 mass percent of additive, 0.2 mass percent of setting regulator, 0.03 mass percent of hydroxypropyl methyl cellulose ether and 4.27 mass percent of water.
The basic cement is ordinary portland cement, and the basic aggregate is quartz sand with the particle size of 1.0 mm; the surface cement is white portland cement with the strength of 62.5 grade, and the surface aggregate particles are colored quartz sand with the particle size of 0.5 mm; the reinforcing agent is prepared by stirring and mixing silica fume and redispersible latex powder, wherein the mass ratio of the silica fume is 95%, the mass ratio of the redispersible latex powder is 5%, the admixture adopts a polycarboxylic acid high-performance water reducing agent with the water reducing rate of 30%, and the coagulation regulator adopts lithium carbonate.
Example 4
The spraying sound absorption material consists of a base layer sound absorption material, a surface layer sound absorption material and a sealing agent; the mass ratio of the base layer sound absorption material to the surface layer sound absorption material is 2: 1, and the sealing agent is 23kg/m2. Inorganic fiber mesh cloth is arranged between the base layer sound absorption material and the surface layer sound absorption material, and the sealing agent adopts styrene-acrylic emulsion.
The base layer sound absorption material is prepared by stirring and mixing 20 mass percent of base layer cement, 75 mass percent of base layer aggregate, 1.0 mass percent of reinforcing agent, 0.3 mass percent of additive, 0.1 mass percent of pour point regulator and 3.6 mass percent of water; the surface layer sound absorption material is prepared by stirring and mixing 28 mass percent of surface layer cement, 65 mass percent of surface layer aggregate, 1.5 mass percent of reinforcing agent, 0.3 mass percent of additive, 0.2 mass percent of setting regulator, 0.02 mass percent of hydroxypropyl methyl cellulose ether and 4.98 mass percent of water.
The basic cement is ordinary portland cement, and the basic aggregate is quartz sand with the particle size of 0.8 mm; the surface cement is white portland cement with the strength of 52.5 grade, and the surface aggregate particles are colored quartz sand with the particle size of 0.3 mm; the reinforcing agent is prepared by stirring and mixing silica fume and redispersible latex powder, wherein the mass ratio of the silica fume is 92%, and the mass ratio of the redispersible latex powder is 8%; the admixture adopts a polycarboxylic acid high-performance water reducing agent with the water reducing rate of 30 percent, and the setting regulator adopts lithium carbonate.
Example 5
The spraying sound absorption material consists of a base layer sound absorption material, a surface layer sound absorption material and a sealing agent; the mass ratio of the base layer sound absorption material to the surface layer sound absorption material is 3:1, and the sealing agent is 25kg/m2. Inorganic fiber mesh cloth is arranged between the base layer sound absorption material and the surface layer sound absorption material, and the sealing agent adopts styrene-acrylic emulsion.
The base layer sound absorption material is prepared by stirring and mixing 24% of base layer cement, 70% of base layer aggregate, 1.0% of reinforcing agent, 0.4% of additive, 0.1% of coagulation regulator and 4.5% of water in percentage by mass; the surface layer sound absorption material is prepared by stirring and mixing 23.97% of surface layer cement, 70% of surface layer aggregate, 1.5% of reinforcing agent, 0.4% of admixture, 0.1% of set adjusting agent, 0.03% of hydroxypropyl methyl cellulose ether and 4% of water in percentage by mass.
The basic cement is ordinary portland cement, and the basic aggregate is quartz sand with the particle size of 0.8 mm; the surface cement is white portland cement with the strength of 52.5 grade, and the surface aggregate particles are colored quartz sand with the particle size of 0.3 mm; the reinforcing agent is prepared by stirring and mixing silica fume and redispersible latex powder, wherein the mass ratio of the silica fume is 92%, the mass ratio of the redispersible latex powder is 8%, the admixture adopts a polycarboxylic acid high-performance water reducing agent with the water reducing rate of 30%, and the thickening time control agent adopts lithium carbonate.
Example 6
The spraying sound absorption material consists of a base layer sound absorption material, a surface layer sound absorption material and a sealing agent; the mass ratio of the base layer sound absorption material to the surface layer sound absorption material is 3:1, and the sealing agent is 25kg/m2. Inorganic fiber mesh cloth is arranged between the base layer sound absorption material and the surface layer sound absorption material, and the sealing agent adopts styrene-acrylic emulsion;
the base layer sound absorption material is prepared by stirring and mixing 20 mass percent of base layer cement, 74 mass percent of base layer aggregate, 1.5 mass percent of reinforcing agent, 0.4 mass percent of additive, 0.2 mass percent of pour point regulator and 3.9 mass percent of water; the surface layer sound absorption material is prepared by stirring and mixing 25 mass percent of surface layer cement, 68 mass percent of surface layer aggregate, 2 mass percent of reinforcing agent, 0.4 mass percent of additive, 0.2 mass percent of setting regulator, 0.03 mass percent of hydroxypropyl methyl cellulose ether and 4.37 mass percent of water;
the basic cement is ordinary portland cement, and the basic aggregate is quartz sand with the particle size of 0.8 mm; the surface cement is white portland cement with the strength of 52.5 grade, and the surface aggregate particles are colored quartz sand with the particle size of 0.3 mm; the reinforcing agent is prepared by stirring and mixing silica fume and redispersible latex powder, wherein the mass ratio of the silica fume is 92%, the mass ratio of the redispersible latex powder is 8%, the admixture adopts a polycarboxylic acid high-performance water reducing agent with the water reducing rate of 30%, and the coagulation regulator adopts calcium carbonate.
TABLE 1 test results of the properties of the sound-absorbing materials sprayed and the fiber boards sprayed in examples 1 to 6 (thickness of each board is 30mm)
Table 1 shows the results of the performance tests of the sound-absorbing material and the fiber board sprayed in examples 1 to 6, which were performed on the aspects of sound absorption coefficient, sound insulation amount, adhesive strength, formaldehyde emission amount, combustion performance, slag ball content, and the like. The test result shows that the sound absorption coefficient, the sound insulation effect and the bonding strength of the spray sound absorption material are all better than those of a spray fiberboard, and the formaldehyde emission is zero, which indicates that the spray sound absorption material is environment-friendly, has no harm to human bodies, and has no slag ball content. From the above test results, it can be seen that the present invention solves the technical problems and achieves advantageous effects.
Claims (7)
1. A spraying sound absorption material is characterized by comprising a base layer sound absorption material, a surface layer sound absorption material and a sealing agent; the mass ratio of the base layer sound-absorbing material to the surface layer sound-absorbing material is 1-3: 1, and the sealing agent is 20-25 kg/m2(ii) a Base layer sound-absorbing material and surface layer sound-absorbing materialInorganic fiber mesh cloth is arranged between the materials;
the base layer sound absorption material is prepared from raw materials of base cement, base aggregate, reinforcing agent, additive, coagulation regulator and water; the base layer sound absorption material comprises, by mass, 20-25% of base layer cement, 70-75% of base layer aggregate, 1.0-2.0% of reinforcing agent, 0.3-0.5% of additive, 0.1-0.2% of coagulation regulator and 3.5-4.5% of water; the surface layer sound absorption material is prepared from raw materials of surface layer cement, surface layer aggregate, a reinforcing agent, an additive, a coagulation regulator, hydroxypropyl methyl cellulose ether and water; the sealant is styrene-acrylic emulsion; the mass ratio of the surface layer sound absorption material to the raw materials is 24-28% of surface layer cement, 65-70% of surface layer aggregate, 1.5-2.0% of reinforcing agent, 0.3-0.5% of additive, 0.1-0.2% of coagulation regulator, 0.02-0.03% of hydroxypropyl methyl cellulose ether and 4.0-5.0% of water;
the base cement is Portland cement or ordinary Portland cement, and the base aggregate is quartz sand; the surface cement is white portland cement, and the surface aggregate particles are colored quartz sand; the reinforcing agent is prepared from silica fume and redispersible latex powder, the additive is a polycarboxylic acid high-performance water reducing agent, and the coagulation regulator is calcium formate or lithium carbonate.
2. The spray sound absorption material as claimed in claim 1, wherein the strength grade of the portland cement is greater than or equal to 52.5.
3. The spray sound absorption material as claimed in claim 1, wherein the particle size of the quartz sand in the base aggregate is 0.5-1.0 mm.
4. The spray sound absorption material as claimed in claim 1, wherein the mass ratio of each component in the reinforcing agent is: 90-95% of silica fume and 5-10% of redispersible latex powder.
5. The spray coating sound absorption material of claim 1, wherein the water reducing rate of the polycarboxylic acid high-performance water reducing agent is not less than 30%.
6. A spray coated sound absorbing material according to claim 1, wherein the white portland cement has a strength grade >42.5 grade.
7. The spray sound absorption material as claimed in claim 1, wherein the grain size of the colored quartz sand is 0.2-0.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811146042.0A CN109401371B (en) | 2018-09-28 | 2018-09-28 | Spraying sound-absorbing material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811146042.0A CN109401371B (en) | 2018-09-28 | 2018-09-28 | Spraying sound-absorbing material |
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| Publication Number | Publication Date |
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| CN109401371A CN109401371A (en) | 2019-03-01 |
| CN109401371B true CN109401371B (en) | 2021-07-02 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585250B (en) * | 2009-06-11 | 2014-05-21 | 谭毅 | Glass fiber reinforced cement based thin-wall structure GRC imitation sandstone product |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585250B (en) * | 2009-06-11 | 2014-05-21 | 谭毅 | Glass fiber reinforced cement based thin-wall structure GRC imitation sandstone product |
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