CN111944367A - Spraying type sound absorption and insulation material and application thereof - Google Patents
Spraying type sound absorption and insulation material and application thereof Download PDFInfo
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- CN111944367A CN111944367A CN202010854494.5A CN202010854494A CN111944367A CN 111944367 A CN111944367 A CN 111944367A CN 202010854494 A CN202010854494 A CN 202010854494A CN 111944367 A CN111944367 A CN 111944367A
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- 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- 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
- C09D7/20—Diluents or solvents
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- 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
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- 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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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Abstract
The invention relates to a spraying type sound absorption and insulation material and application thereof. According to weight percentage, 25 to 40 percent of core-shell self-crosslinking emulsion, 2.0 to 4.0 percent of cosolvent, 1.0 to 2.0 percent of dispersant, 0.3 to 0.8 percent of rheological additive, 0.2 to 1.0 percent of defoamer, 0.2 to 0.5 percent of bactericide, 10.0 to 20.0 percent of sound-absorbing nano filler, 30.0 to 50.0 percent of sound-insulating filler and 0 to 2.0 percent of pure water are uniformly sprayed on the surface of an object, and the material can be cured at normal temperature and high temperature, and the formed cured film has excellent sound-absorbing and insulating properties. The spraying type sound absorption and insulation material is mainly used in the fields of automobiles, rail cars, ships, household appliances and the like.
Description
Technical Field
The invention belongs to the field of thick paste coating, and particularly relates to a spraying type sound absorption and insulation material and application thereof.
Background
Various vehicles such as vehicles and ships can generate strong vibration and noise when running at high speed, and the comfort of passengers is reduced. Also, some household appliances, such as dishwashers, washing machines, etc., generate loud noises during operation, which affects the quiet atmosphere of the home. Most of the traditional sound absorption and insulation materials are formed parts, the processing technology is complex, a large amount of space is occupied, the construction automation degree is low, the environmental protection performance is poor, and the like.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a spraying type sound absorption and insulation material. The spray type sound absorption and insulation material of the invention uses water as a solvent, uses acrylic emulsion with excellent damping performance, and is matched with sound absorption nanometer materials to prepare the foaming type sound absorption and insulation material.
The invention aims to realize the following technical scheme that the spraying type sound absorption and insulation material comprises the following components in percentage by weight:
furthermore, in the spray coating type sound absorption and insulation material, the core-shell self-crosslinking emulsion is core-shell self-crosslinking acrylic emulsion, and the core-shell self-crosslinking acrylic emulsion is SZX-521, SZX-804,
Or Solury RX-20. The core-shell self-crosslinking acrylic emulsion adopted by the invention has the following characteristics that Tg is below 20 ℃, damping performance is excellent, and water permeability is good.
Further, in the above spraying type sound absorption and insulation material, the cosolvent is an alcohol ether substance, and the alcohol ether substance is propylene glycol, glycerol, glycol ether or propylene glycol ether.
Further, in the above spraying type sound absorbing and insulating material, the dispersant is an anionic polyacrylate dispersant; the anionic polyacrylic acidThe salt dispersant is Disponer W-518, Disponer W-519, OROTANTMExpress or OROTANTM731A, one or two of them.
Further, in the above spray type sound absorption and insulation material, the rheological additive is a polyurethane associated rheological additive and/or an alkali swelling rheological additive; the polyurethane associative rheological additive is
Or
The alkali swelling rheological additive is
Or ASE 60.
Further, the defoaming agent is an organic silicon modified defoaming agent XWC-9300 or Defom W-086.
Further, in the above spraying type sound absorption and insulation material, the bactericide is a kasong bactericide; the cason disinfectant is KATHON LXE or PROMEX CMT2.5SF.
Further, the spraying type sound absorption and insulation material is characterized in that the sound absorption nano filler is nano diatomite LH-880, JSY660 or LZ-11. Furthermore, the sound absorption nano filler is spherical, pores are formed on the surface, small holes penetrate from the surface to the center, the volume of the holes accounts for about 50% of the area of the particles, and the sound absorption nano filler has good sound absorption and insulation performance.
Further, in the above spraying type sound absorption and insulation material, the sound insulation filler is ultrafine glass flakes (1000 mesh), ultrafine graphite (1000 mesh) or graphene.
The application of the spray type sound absorption and insulation material is to spray the spray type sound absorption and insulation material on a substrate, and to cure the spray type sound absorption and insulation material for more than 24 hours at normal temperature or cure the spray type sound absorption and insulation material for 20 to 60 minutes at the temperature of 140 to 170 ℃ to form a sound absorption and insulation coating.
The invention has the beneficial effects that:
1. the sprayable material can form a film rapidly under the heating condition of 140-170 ℃, and finally forms a material coating which is uniform and flat and has excellent sound absorption and insulation performance.
2. The modified emulsion and the filler used in the invention have excellent damping performance; the sound absorption and insulation filler, the system structure and the foaming mechanism improve the sound absorption and insulation performance. The invention mainly forms uniform pasty substances with excellent thixotropic property by physically stirring various raw materials. After film forming, the coating has good sound absorption and insulation performance. The raw materials are free of solvent, and the liquid component is mainly pure water, so that the harm to personnel and environment is greatly reduced.
3. The material of the invention is evenly sprayed on the surface of an object, can be cured at normal temperature and high temperature, and has excellent sound absorption and insulation performance. The invention is mainly used in the fields of automobiles, railcars, ships, household appliances and the like. Compared with the common sound absorption and insulation material, the material has sprayability, shock absorption and noise reduction; compared with the water-based damping material for vehicles, the material has excellent sound absorption and insulation performance, can be cured at normal temperature/high temperature, and has wider application.
Drawings
Fig. 1 shows the sound absorption properties of the spray type sound absorbing and insulating material prepared in example 1.
Fig. 2 shows the sound insulation properties of the spray type sound absorbing and insulating material prepared in example 1.
Fig. 3 is a graph of composite loss factor versus temperature for the spray type sound absorbing and insulating material prepared in example 1.
Detailed Description
Example 1
The spraying type sound absorption and insulation material comprises the following components in percentage by weight:
the preparation method comprises the following steps:
firstly, putting the acrylic emulsion SZX-804 into a container, and adding cosolvent propylene glycol ether, dispersant Disponer W-519 and part of rheological additive in sequence during the dispersion process
Defoaming agent XWC-9300, bactericide KATHON LXE, sound-absorbing nano filler LH-880 and sound-insulating filler superfine glass flakes. Stirring at high speed (1000r/min) for 30min, mixing, and stirring at low speed (200r/min) for defoaming. Finally, adding water and the rest of the rheological additive to adjust the viscosity (70Pa.s-120Pa.s), filtering by a 40-mesh filter and packaging.
(III) results of the detection
1. Sound absorption/insulation detection
Manufacturing a sample piece: and coating the spray type sound absorption and insulation material on release paper in a spray mode, heating at 140 ℃ for 20min to solidify into a film, and cutting into round samples to be detected with the thickness of phi 44mm, wherein the thickness of the samples is 1.0mm, 2.0mm and 3.0mm respectively.
Suction/sound insulation test method: ISO 10534-2, results are shown in FIGS. 1 and 2.
As can be seen from FIG. 1, in the range of 500-1000HZ, the sound absorption coefficient of the material is greater than 0.4, and the sound absorption effect is good.
As can be seen from FIG. 2, at 500Hz, the sound insulation was 7.5dB for 1mm thick material, 12dB for 2mm thick material and 17dB for 3mm thick material. As the frequency increases, the sound insulation of the material increases as the thickness of the material increases.
2. Composite loss factor test
Manufacturing a sample piece: the spraying type sound absorption and insulation material is coated on a cold-rolled steel plate strip with the thickness of 200 multiplied by 10 multiplied by 1mm in a spraying mode, the glue coating area is 180 multiplied by 10mm, the cold-rolled steel plate strip is heated for 20min at the temperature of 140 ℃, and the glue is solidified into a film, so that sample pieces to be detected with the thickness of 1mm, 2mm and 3mm are respectively manufactured.
The composite loss factor test method comprises the following steps: GB/T16406-.
As can be seen from Table 1 and FIG. 3, the composite loss factor of the material is the highest at 20 ℃, the thickness of 1mm reaches 0.072, the thickness of 2mm reaches 0.147, the thickness of 3mm reaches 0.194, and the material has excellent performance in the temperature range of-20 ℃ to 60 ℃. And as the thickness of the material increases, the dissipation factor of the material increases.
TABLE 1 composite loss factor of materials
Example 2
The spraying type sound absorption and insulation material comprises the following components in percentage by weight:
the preparation method comprises the following steps: same as example 1
(III) results of the detection
1. Sound absorption/insulation detection
Manufacturing a sample piece: and (3) coating the spray type sound absorption and insulation material on release paper in a spray mode, heating at 140 ℃ for 20min to solidify into a film, and cutting into a sample piece to be tested with the diameter of 44mm and the thickness of 2.0 mm.
Suction/sound insulation test method: ISO 10534-2.
Through detection, the sound absorption coefficient of the material is larger than 0.4 in the range of 500-1000HZ, and the sound absorption effect is good.
Through detection, at 500HZ, the sound insulation performance of the material with the thickness of 2mm is obviously reduced by 8 dB.
2. Composite loss factor test
Manufacturing a sample piece: the spraying type sound absorption and insulation material is coated on a cold-rolled steel plate strip with the thickness of 200 multiplied by 10 multiplied by 1mm in a spraying mode, the glue coating area is 180 multiplied by 10mm, the cold-rolled steel plate strip is heated for 20min at the temperature of 140 ℃, and the cold-rolled steel plate strip is solidified into a film to be prepared into a sample piece to be tested with the thickness of 2 mm.
The composite loss factor test method comprises the following steps: GB/T16406-.
Through detection, the loss factor of the material from minus 20 ℃ to 60 ℃ is integrally reduced, and the composite loss factor of the material is the highest and reaches 0.112 at 20 ℃.
Example 3
The spraying type sound absorption and insulation material comprises the following components in percentage by weight:
the preparation method comprises the following steps: same as example 1
(III) results of the detection
1. Sound absorption/insulation detection
Manufacturing a sample piece: and (3) coating the spray type sound absorption and insulation material on release paper in a spray mode, heating at 140 ℃ for 20min to solidify into a film, and cutting into a sample piece to be tested with the diameter of 44mm and the thickness of 2.0 mm.
Suction/sound insulation test method: ISO 10534-2.
Through detection, the sound absorption coefficient of the material is larger than 0.4 in the range of 500-1000HZ, and the sound absorption effect is good.
Through detection, at 500HZ, the sound insulation performance of the material with the thickness of 2mm is obviously reduced by 9 dB.
2. Composite loss factor test
Manufacturing a sample piece: the spraying type sound absorption and insulation material is coated on a cold-rolled steel plate strip with the thickness of 200 multiplied by 10 multiplied by 1mm in a spraying mode, the glue coating area is 180 multiplied by 10mm, the cold-rolled steel plate strip is heated for 20min at the temperature of 140 ℃, and the cold-rolled steel plate strip is solidified into a film to be prepared into a sample piece to be tested with the thickness of 2 mm.
The composite loss factor test method comprises the following steps: GB/T16406-.
Through detection, the loss factor of the material from minus 20 ℃ to 60 ℃ is integrally reduced, and the composite loss factor of the material is the highest and reaches 0.106 at 20 ℃.
Claims (10)
1. A spraying type sound absorption and insulation material is characterized by comprising the following components in percentage by weight:
2. the spray type sound absorbing and insulating material according to claim 1, wherein the core-shell self-crosslinking emulsion is a core-shell self-crosslinking acrylic emulsion, and the core-shell self-crosslinking acrylic emulsion isSZX-521、SZX-804、
8830ap or Solury RX-20.
3. The spray-type sound-absorbing and-insulating material according to claim 1, wherein the cosolvent is an alcohol ether substance, and the alcohol ether substance is propylene glycol, glycerin, an ethylene glycol ether, or a propylene glycol ether.
4. The spray type sound-absorbing and-insulating material according to claim 1, wherein the dispersant is an anionic polyacrylate dispersant; said anionic polyacrylate dispersant is Disponer W-518, Disponer W-519, OROTANTMExpress or OROTANTM731A, one or two of them.
5. The spray type sound absorbing and insulating material according to claim 1, wherein the rheological aid is a polyurethane-associated rheological aid and/or an alkali swelling rheological aid; the polyurethane associative rheological additive is
288 or
299 said alkali-swelling rheological aid is
150 or ASE 60.
6. The spray type sound absorbing and insulating material according to claim 1, wherein the defoaming agent is a silicone modified defoaming agent XWC-9300 or Defom W-086.
7. The spray type sound absorbing and insulating material according to claim 1, wherein the bactericide is a cason bactericide; the cason disinfectant is KATHON LXE or PROMEX CMT2.5SF.
8. The spray type sound absorption and insulation material according to claim 1, wherein the sound absorption nanofiller is nano diatomaceous earth LH-880, JSY660 or LZ-11.
9. The spray type sound absorbing and insulating material according to claim 1, wherein the sound insulating filler is ultrafine glass flakes, ultrafine graphite, or graphene.
10. The use of the spray-type sound-absorbing and-insulating material according to any one of claims 1 to 9, wherein the spray-type sound-absorbing and-insulating material is sprayed on a substrate and cured at room temperature for 24 hours or more, or cured at 140 ℃ to 170 ℃ for 20 to 60 minutes to form a sound-absorbing and-insulating coating.
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| CN202010854494.5A CN111944367A (en) | 2020-08-24 | 2020-08-24 | Spraying type sound absorption and insulation material and application thereof |
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| CN202010854494.5A CN111944367A (en) | 2020-08-24 | 2020-08-24 | Spraying type sound absorption and insulation material and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114085571A (en) * | 2021-12-17 | 2022-02-25 | 宁波威霖住宅设施有限公司 | Noise reduction method |
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