CN111040597A - Micro-elastic sound insulation coating and preparation method thereof - Google Patents
Micro-elastic sound insulation coating and preparation method thereof Download PDFInfo
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- 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
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- 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
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- 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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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
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- C08L2205/00—Polymer mixtures characterised by other features
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Abstract
The invention relates to the technical field of coatings, and discloses a micro-elastic sound insulation coating which comprises the following components: the coating is a water-based fireproof sound-insulation shock-absorption coating, is green and environment-friendly, and has low manufacturing cost, high rebound rate and excellent sound insulation performance after the floor is coated with the coating, and the coating has better heat preservation and heat insulation effects.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a micro-elastic sound insulation coating and a preparation method thereof.
Background
The buildings are more and more covered as the city is enlarged at present, but most buildings have poor sound insulation problems of floors, such as walking sounds on the floors, stool dragging, children jumping, chasing and loud speaking are easy to transmit to the floors, and the noises have great influence on the work and life of people.
At present, domestic floor damping sound-proof material is mainly coiled material or panel, and it all has certain defect at the construction with the in-process of using:
1. a large amount of cutting and overlapping are needed during construction, and the construction is very inconvenient;
2. when in construction, an acoustic bridge is easy to form, and if the acoustic bridge is formed, the sound insulation effect is influenced and the sound insulation quantity is reduced when the acoustic bridge is used.
Disclosure of Invention
The invention aims to provide a micro-elastic sound insulation coating and a preparation method thereof, and aims to solve the problems of poor sound insulation effect and the like in the existing building.
In order to achieve the technical purpose and achieve the technical effect, the invention discloses a micro-elastic sound insulation coating which comprises the following components: styrene-acrylate emulsion, isocyanate synthetic resin, mineral fiber cotton and thermal expansion microspheres, wherein the thermal expansion microspheres are micro-elastic materials made of polymers.
Further, the feed comprises the following components in parts by weight: 10-30 parts of styrene-acrylate emulsion, 20-40 parts of isocyanate synthetic resin, 1-10 parts of mineral fiber cotton and 5-20 parts of thermal expansion microspheres.
In the scheme, after the styrene-acrylate emulsion is formed into a film, the paint film of the paint has strong compressive capacity, improved hardness and reduced cost, and after the isocyanate synthetic resin is formed into a film, the isocyanate synthetic resin has strong tensile resistance and rebound resilience, and after the isocyanate synthetic resin is mixed with thermal expansion microspheres for forming, the material has better elastic damping performance, excellent sound insulation performance and stronger rebound resilience performance; the material is hollow, so that the heat insulation and heat preservation effects are better, and the mineral fiber raw cotton has better sound absorption, sound insulation and crack resistance effects.
Further, the coating also comprises the following components in parts by weight: 10-30 parts of heavy calcium powder, 10-30 parts of mica powder, 1-5 parts of dodecyl alcohol ester, 1-5 parts of ethylene glycol, 0.5-5 parts of dispersing agent, 0.1-1 part of defoaming agent, 0.5-5 parts of preservative, 1-10 parts of phosphorus flame retardant and 0.5-2 parts of organic amine pH regulator.
In the scheme, mica powder and heavy calcium carbonate powder are used as supporting aggregates, the coating has stronger compression resistance and good sound insulation effect after film forming, the dodecyl alcohol ester is mainly used as a coating film forming material, the ethylene glycol mainly plays a role in anti-freezing, the defoaming agent mainly plays a role in eliminating most of bubbles generated by physical stirring dispersion when the coating is prepared, and the dispersing agent enables all raw materials to be stirred more uniformly; the preservative ensures that the coating can be stored for a longer time after being produced and is more stable.
Further, the styrene-acrylate emulsion is 10-15 parts by weight, the isocyanate synthetic resin is 20-30 parts by weight, the mineral fiber cotton is 3-6 parts by weight, the thermal expansion microspheres are 8-12 parts by weight, the heavy calcium powder is 10-15 parts by weight, the mica powder is 10-15 parts by weight, the dodecanol ester is 1.5-2.5 parts by weight, and the ethylene glycol is 1.5-2.5 parts by weight.
Further, the dispersant is 0.8-1.8 parts by weight, the defoamer is 0.2-0.4 parts by weight, the preservative is 0.8-2 parts by weight, the phosphorus flame retardant is 3-5 parts by weight, and the organic amine pH regulator is 1.0-1.5 parts by weight.
Further, the thermal expansion microspheres are hollow spheres, the thermal expansion microspheres are made of acrylic polymers, and the particle size of the thermal expansion microspheres is 5-50 microns.
Further, the coarse whiting powder is 400 meshes coarse whiting powder.
Further, the phosphorus flame retardant is ammonium polyphosphate, and the organic amine pH regulator is selected from C3-C8 alcohol amine compounds.
A preparation method of a micro-elastic sound insulation coating comprises the following steps:
(1) according to the weight percentage, adding a dispersant, a defoaming agent and an organic amine pH regulator into water, and uniformly stirring;
(2) adding coarse whiting powder, mica powder and phosphorus flame retardant, and dispersing at high speed;
(3) adding styrene-acrylate emulsion and isocyanate synthetic resin, and dispersing at high speed;
(4) adding dodecyl alcohol ester and glycol, and dispersing at high speed;
(5) adding mineral fiber cotton, and stirring at low speed;
(6) adding the thermal expansion microspheres and stirring uniformly;
(7) adding antiseptic, and stirring to obtain the final product.
The construction process of the coating comprises the following steps: removing dust and impurities on the base surface (wall surface/ground surface), and adopting a spraying (or rolling coating or batch coating) construction mode, wherein the average thickness of the coating is controlled to be 3 mm; after the coating is finished, the coating can be finished after the coating is dried completely in 48 hours, and an additional protective layer is not needed on the surface. The coating has the advantages of high hardness, strong rebound resilience, strong adhesive force, fire resistance, flame retardance, sound absorption, damping, shock absorption, water resistance, moisture resistance and the like after film forming, and is an important component for developing green buildings.
The invention has the following beneficial effects: the coating is water-based, fireproof, sound-insulating and shock-absorbing, is environment-friendly and low in manufacturing cost, and due to the fact that the micro-elastomer of the thermal expansion microspheres is added, after the coating is coated on a floor slab, the rebound rate is high, the shock absorption performance is excellent, and the coating has good heat preservation and heat insulation effects.
Drawings
FIG. 1 is a graph of impact pressure levels of a reference floor and an experimental floor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments.
Example 1
Adding 0.8 part of dispersing agent, 0.2 part of defoaming agent and 1.0 part of organic amine pH regulator into water, and uniformly stirring, wherein the organic amine pH regulator is an alcohol amine compound of C3; continuously adding 10 parts of 400-mesh heavy calcium powder, 10 parts of mica powder and 3 parts of ammonium polyphosphate flame retardant, and uniformly dispersing at a high speed; then adding 10 parts of styrene-acrylate emulsion and 20 parts of isocyanate synthetic resin, uniformly dispersing at a high speed, and then adding 1.5 parts of dodecyl alcohol ester and 1.5 parts of ethylene glycol, uniformly dispersing at a high speed; adding 3 parts of mineral fiber cotton, and uniformly stirring at a low speed; adding 8 parts of thermal expansion microspheres which are hollow spheres and are uniformly stirred, wherein the thermal expansion microspheres are elastic spheres made of acrylic polymers, the particle size of the thermal expansion microspheres is 5 micrometers, finally adding 0.8 part of preservative and uniformly stirring to prepare the coating, and the defoamer is mineral oil defoamer NXZ; SN-5040 is selected as the dispersing agent; the preservative is A325.
The coating is added with acrylic polymer thermal expansion microspheres, has high rebound rate and excellent damping performance, and the weighted normalized impact sound pressure level is Ln,wCoating the paint with the thickness of about 3mm on a reinforced concrete floor slab of 78dB, after the paint is formed into a film, carrying out impact sound insulation lifting detection on the experimental floor slab structure, and weighing the standard impact sound pressure level to be Ln,wA comparison was made with a 78dB standard floor and the experimental data are shown in table 1:
TABLE 1 impact sound pressure level of experimental and reference floors
The detection basis of the data in the table 1 is GB/T50121-; 1997 acoustic building and building components acoustic insulation measurement part 8: laboratory measurements of impact sound improvement of heavy standard floor cladding.
According to the evaluation result of GB/T50121, the weighting standardization striking sound pressure level L of the experimental floor coated with the coating of the inventionn,wAt 62dB, the impact sound pressure level improvement △ L is weightedwThe impact pressure level curves for the reference and experimental floors are plotted according to table 1 as shown in figure 1, 16 dB.
In addition, the coating has a wider damping temperature range, has good sound insulation and shock absorption effects in high-temperature and low-temperature regions, has excellent high-temperature resistance and low-temperature resistance, is not cracked after being baked at 150 ℃ after film forming, has impact resistance of more than or equal to 60Kg.cm after being baked at-40 ℃, has VOC content of less than or equal to 50g/L, and is green and environment-friendly; in addition, the coating formed by the coating has excellent heat preservation effect, and the heat conductivity coefficient is less than or equal to 0.085W (m.k) (the average temperature is 25 ℃).
Example 2
Adding 0.5 part of dispersing agent, 0.1 part of defoaming agent and 0.5 part of organic amine pH regulator into water, and uniformly stirring, wherein the organic amine pH regulator is an alcohol amine compound of C5; continuously adding 10 parts of 400-mesh heavy calcium powder, 10 parts of mica powder and 1 part of ammonium polyphosphate flame retardant, and uniformly dispersing at a high speed; then adding 10 parts of styrene-acrylate emulsion and 20 parts of isocyanate synthetic resin, uniformly dispersing at a high speed, and then adding 1 part of dodecyl alcohol ester and 1 part of ethylene glycol, uniformly dispersing at a high speed; adding 1 part of mineral fiber cotton, and stirring at a low speed; adding 5 parts of thermal expansion microspheres which are hollow spheres and are micro-elastic bodies made of acrylic polymers, wherein the particle size of the thermal expansion microspheres is 50 mu m, and finally adding 0.5 part of preservative and stirring uniformly to prepare the coating.
Example 3
Adding 1.8 parts of dispersing agent, 0.4 part of defoaming agent and 1.5 parts of organic amine pH regulator into water, and uniformly stirring, wherein the organic amine pH regulator is an alcohol amine compound of C8; continuously adding 15 parts of 400-mesh heavy calcium powder, 15 parts of mica powder and 5 parts of ammonium polyphosphate flame retardant, and uniformly dispersing at a high speed; then adding 15 parts of styrene-acrylate emulsion and 30 parts of isocyanate synthetic resin, and uniformly dispersing at a high speed, and then adding 2.5 parts of dodecyl alcohol ester and 2.5 parts of ethylene glycol, and uniformly dispersing at a high speed; adding 6 parts of inorganic mineral cellucotton, and uniformly stirring at a low speed; adding 12 parts of hollow spherical thermal expansion microspheres which are made of acrylic polymer and have the particle size of 20 microns, and finally adding 2 parts of preservative and stirring uniformly to prepare the coating.
Example 4
Adding 5 parts of dispersing agent, 1 part of defoaming agent and 2 parts of organic amine pH regulator into water, and uniformly stirring, wherein the organic amine pH regulator is C6 alcohol amine compound; continuously adding 30 parts of 400-mesh heavy calcium powder, 30 parts of mica powder and 10 parts of ammonium polyphosphate flame retardant, and uniformly dispersing at a high speed; then adding 30 parts of styrene-acrylate emulsion and 40 parts of isocyanate synthetic resin, uniformly dispersing at a high speed, and then adding 5 parts of dodecyl alcohol ester and 5 parts of ethylene glycol, uniformly dispersing at a high speed; adding 10 parts of mineral fiber cotton, and uniformly stirring at a low speed; adding 20 parts of hollow spherical thermal expansion microspheres which are made of acrylic polymer and have the particle size of 40 mu m, and finally adding 5 parts of preservative and stirring uniformly to prepare the coating.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (9)
1. The micro-elastic sound insulation coating is characterized by comprising the following components: styrene-acrylate emulsion, isocyanate synthetic resin, mineral fiber cotton and thermal expansion microspheres.
2. The coating of claim 1, wherein: comprises the following components in parts by weight: 10-30 parts of styrene-acrylate emulsion, 20-40 parts of isocyanate synthetic resin, 1-10 parts of mineral fiber cotton and 5-20 parts of thermal expansion microspheres.
3. The coating of claim 1, wherein: the coating also comprises the following components in parts by weight: 10-30 parts of heavy calcium powder, 10-30 parts of mica powder, 1-5 parts of dodecyl alcohol ester, 1-5 parts of ethylene glycol, 0.5-5 parts of dispersing agent, 0.1-1 part of defoaming agent, 0.5-5 parts of preservative, 1-10 parts of phosphorus flame retardant and 0.5-2 parts of organic amine pH regulator.
4. The coating of claim 3, wherein: 10-15 parts of styrene-acrylate emulsion, 20-30 parts of isocyanate synthetic resin, 3-6 parts of mineral fiber cotton, 8-12 parts of thermal expansion microspheres, 10-15 parts of heavy calcium powder, 10-15 parts of mica powder, 1.5-2.5 parts of dodecyl alcohol ester and 1.5-2.5 parts of ethylene glycol.
5. The coating of claim 4, wherein: 0.8-1.8 parts of dispersing agent, 0.2-0.4 part of defoaming agent, 0.8-2 parts of preservative, 3-5 parts of phosphorus flame retardant and 1.0-1.5 parts of organic amine pH regulator.
6. The coating of claim 3, wherein: the thermal expansion microspheres are hollow spheres, the material of the thermal expansion microspheres is acrylic polymer, and the particle size of the thermal expansion microspheres is 5-50 μm.
7. The coating of claim 6, wherein: the coarse whiting powder is 400 meshes coarse whiting powder.
8. The coating of claim 7, wherein: the phosphorus flame retardant is ammonium polyphosphate, and the organic amine pH regulator is selected from C3-C8 alcohol amine compounds.
9. A preparation method of a micro-elastic sound insulation coating is characterized by comprising the following steps: the method comprises the following steps:
(1) according to the weight percentage, adding a dispersant, a defoaming agent and an organic amine pH regulator into water, and uniformly stirring;
(2) adding coarse whiting powder, mica powder and phosphorus flame retardant, and dispersing at high speed;
(3) adding styrene-acrylate emulsion and isocyanate synthetic resin, and dispersing at high speed;
(4) adding dodecyl alcohol ester and glycol, and dispersing at high speed;
(5) adding mineral fiber cotton, and stirring at low speed;
(6) adding the thermal expansion microspheres and stirring uniformly;
(7) adding antiseptic, and stirring to obtain the final product.
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Cited By (7)
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| CN112080193A (en) * | 2020-07-29 | 2020-12-15 | 广东沐峰节能创新科技有限公司 | Water-based sound-insulation shock-absorption heat-insulation coating and preparation method thereof |
| CN112143355A (en) * | 2020-08-13 | 2020-12-29 | 广东沐峰节能创新科技有限公司 | Preparation method of water-based sound-insulation shock-absorption heat-insulation coating |
| CN112159184A (en) * | 2020-07-13 | 2021-01-01 | 维德斯新材料(上海)有限公司 | Multifunctional base material for interior wall and preparation method thereof |
| CN112680083A (en) * | 2020-12-28 | 2021-04-20 | 四川赛尔科美新材料科技有限公司 | Heat-preservation sound-insulation composite material containing micro-nano particles and preparation method thereof |
| CN113943523A (en) * | 2020-07-16 | 2022-01-18 | 广东沐峰节能创新科技有限公司 | Water-based sound-insulation shock-absorption heat-insulation coating |
| CN114591678A (en) * | 2022-04-12 | 2022-06-07 | 衡江(广东)高新材料科技有限公司 | Water-based sound-insulation shock-absorption heat-insulation coating and preparation method thereof |
| CN115044240A (en) * | 2022-06-14 | 2022-09-13 | 苏州大学 | Tin antimony oxide coated modified hollow thermal expansion microsphere thermal insulation coating and preparation method thereof |
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| CN112080193A (en) * | 2020-07-29 | 2020-12-15 | 广东沐峰节能创新科技有限公司 | Water-based sound-insulation shock-absorption heat-insulation coating and preparation method thereof |
| CN112143355A (en) * | 2020-08-13 | 2020-12-29 | 广东沐峰节能创新科技有限公司 | Preparation method of water-based sound-insulation shock-absorption heat-insulation coating |
| CN112680083A (en) * | 2020-12-28 | 2021-04-20 | 四川赛尔科美新材料科技有限公司 | Heat-preservation sound-insulation composite material containing micro-nano particles and preparation method thereof |
| CN114591678A (en) * | 2022-04-12 | 2022-06-07 | 衡江(广东)高新材料科技有限公司 | Water-based sound-insulation shock-absorption heat-insulation coating and preparation method thereof |
| CN115044240A (en) * | 2022-06-14 | 2022-09-13 | 苏州大学 | Tin antimony oxide coated modified hollow thermal expansion microsphere thermal insulation coating and preparation method thereof |
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Application publication date: 20200421 |