CN111072312A - Sound-insulation shock-absorption coating and preparation method thereof - Google Patents
Sound-insulation shock-absorption coating and preparation method thereof Download PDFInfo
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- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
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- 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
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- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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Abstract
The invention discloses a sound-insulation shock-absorption coating and a preparation method thereof. The sound-insulation shock-absorption coating comprises the following components in percentage by weight: 5-7% of VAE emulsion, 5-7% of floating bead, 38-45% of non-stone mineral wool, 3-5% of mica powder, 35-45% of water and 1% of auxiliary material. The coating has good sound insulation and noise reduction functions, also has good damping and noise reduction effects, is double in noise reduction, and can effectively improve the noise pollution prevention function of buildings. Moreover, the coating has good fireproof performance, strong flame retardance, good wear resistance and insulating performance, low content of harmful volatile substances and heavy metals, and environmental protection. The preparation method provided by the invention is mild in condition and low in energy consumption, and can be used for effectively preparing and producing the sound-insulation damping coating in a large scale.
Description
Technical Field
The invention relates to the technical field of building coatings, in particular to a sound-insulation shock-absorption coating and a preparation method thereof.
Background
With the development of society, the noise pollution of cities is more and more. Particularly, in commercial houses, due to the fact that the density of buildings is low, the floors are connected tightly, and small sound or vibration can be serious noise pollution. The noise pollution is easy to cause troubles and harm to the health and daily life of people, and is not beneficial to the physical and psychological health of people. The harm of noise pollution to the health and daily life of people is increasingly paid attention to, how to provide a quiet and comfortable living environment for people through building material sound insulation of buildings, and the position of the sound insulation function of the buildings in various building functions is gradually improved.
Therefore, in the construction of buildings, sound insulation of buildings is performed by using various sound insulation building materials including sound-absorbing paint, mineral wool boards, and the like, thereby creating a quiet and comfortable building environment. However, the conventional sound-absorbing paint generally has only a sound-absorbing and noise-preventing effect, and the noise-preventing effect between floors is poor, noise pollution is still generated, and the sound-insulating effect is not good. In addition, the main raw materials and mineral wool boards adopted by the traditional sound-absorbing coating contain high content of harmful volatile substances and heavy metals, so that the sound-absorbing coating is not environment-friendly and is easy to cause harm to human bodies when used.
Disclosure of Invention
The invention aims to provide a sound-insulating and shock-absorbing coating aiming at the defects or shortcomings in the prior art. The coating has good sound insulation and noise reduction functions, also has good damping and noise reduction effects, is double in noise reduction, and can effectively improve the noise pollution prevention function of buildings. Moreover, the coating has good fireproof performance, strong flame retardance, good wear resistance and insulating performance, low content of harmful volatile substances and heavy metals, and environmental protection.
The invention also aims to provide a method for preparing the sound-insulation and shock-absorption coating.
The purpose of the invention is realized by the following technical scheme.
A sound-insulation shock-absorption coating comprises the following components in percentage by weight:
the auxiliary materials comprise a defoaming agent, a preservative, a thickening agent and a pigment; and the mass ratio of the defoaming agent to the preservative to the thickening agent to the pigment is 2.0-2.5:1.5-2.0:2: 4.
Preferably, the sound-insulation shock-absorption coating comprises the following components in percentage by weight:
preferably, the bulk density of the floating bead is 450-600kg/m3The particle size is 100 meshes.
Preferably, the mineral wool without stone is mineral wool with heavy metal content lower than 5mg/kg, the fiber diameter is not more than 9 μm, the slag ball content is not more than 10 wt%, and the volume weight is 60-100kg/m3。
Preferably, the particle size of the mica powder is 150-200 meshes.
Preferably, the mass ratio of the defoaming agent to the preservative to the thickener to the pigment is 2.5:1.5:2: 4.
Preferably, the thickener is hydroxyethyl cellulose.
Preferably, the pigment is iron sesquioxide (iron black).
Preferably, the dry density of the sound-proof and shock-absorbing coating is less than 550kg/m3。
The method for preparing the sound-insulating and shock-absorbing coating material of any one of the above items, comprising the steps of:
(1) taking water 40-50 times the weight of the thickening agent, adding the thickening agent, and stirring and dispersing uniformly at the rotating speed of 800-1500r/min for later use;
(2) mixing the VAE emulsion with the rest water, and stirring and mixing uniformly at the rotating speed of 25-30 r/min; adding a defoaming agent and a preservative, and continuously stirring and uniformly mixing at the rotating speed of 25-30r/min to obtain a mixed solution;
(3) adding the thickener dispersed in the step (1) into the mixed solution in the step (2), and continuously stirring and uniformly mixing at the rotating speed of 25-30 r/min;
(4) then adding the floating beads, the stone-free mineral wool and the mica powder, and continuously stirring and mixing for 1.0-1.5h at the rotating speed of 25-30 r/min;
(5) and adding the pigment to perform color mixing to obtain the sound-insulation damping coating.
Preferably, in the step (4), the floating beads, the stone-free mineral wool and the mica powder are uniformly added in 3-5 batches, specifically:
adding the stone-free mineral wool, and then adding the floating beads and the mica powder into a batch of feeding materials; after the feeding of one batch is finished, continuously stirring and uniformly mixing, and then feeding the next batch.
Preferably, in step (5), the pigment is added in 2-3 batches.
The sound-insulating and shock-absorbing coating is used for noise reduction and sound insulation of buildings, is used synchronously with surface decoration of the buildings, and is coated in an inner layer of the surface of a cavity. Specifically, when the surface of a blank building is decorated, the coating is directly smeared on the surface of a floor slab of the blank, then cement mortar is smeared to cover the coating, and finally, ceramic tiles or cement can be pasted on the cement mortar layer.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) in the sound-insulation damping coating, the floating beads, the stone-free mineral wool and the like are used in a compatible manner, so that the coating can absorb noise and has good sound-insulation and noise-reduction functions; and the floating beads are hollow spheres, the wall is thin and hollow, the damping effect is good, and the floating beads are compatible with the stone-free mineral wool and the mica powder for use, so that the formed coating layer has excellent damping and buffering effects, the noise pollution caused by vibration can be further reduced, and the sound-insulation damping coating has dual noise reduction effects.
(2) In the sound-insulation damping paint, the compatible floating beads, the stone-free mineral wool, the mica powder and the like have good heat-insulation and fire-resistant functions, strong fire resistance and high fire resistance, the combustion performance reaches the GB 8624A (A2) level requirement, and the spread of fire can be effectively prevented; meanwhile, the floating beads, the stone-free mineral wool, the mica powder and the like are used in compatibility, so that the coating has good insulating property and wear resistance.
(3) In the sound-insulation damping coating, the stone-free mineral wool is adopted as a sound-absorption damping material, and the heavy metal content in the stone-free mineral wool is low; moreover, the adopted VAE emulsion and the like generate few harmful volatile substances when in use, and do not generate harm to human bodies; therefore, the sound-insulation damping coating does not generate a large amount of toxic and harmful substances in the using process, is green and environment-friendly, and has high use safety.
(4) The preparation method provided by the invention is mild in condition and low in energy consumption, and can be used for effectively preparing and producing the sound-insulation damping coating in a large scale.
Drawings
Fig. 1 is a graph showing a sound insulation measurement of the sound-deadening vibration damping paint of example 2.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the following specific examples, but the scope and implementation of the present invention are not limited thereto. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the specific examples, unless otherwise specified, the technical means used are in accordance with the conventional means employed by those skilled in the art of the present invention.
In the following examples, the sources of the raw materials used are as follows:
VAE emulsion, beijing eastern petrochemical company ltd, VAE707 emulsion.
The defoaming agent is prepared from Defeng DF-8205, Dongguan Defeng defoaming agent Co., Ltd, and the content of active matters is more than or equal to 30%.
Antiseptic, denuda chemical ltd, paint disinfectant, preservative DL-T201.
Example 1
The sound-insulation shock-absorption coating comprises the following components in percentage by weight:
wherein the volume weight of the floating bead is 500kg/m3The particle size is 100 meshes. The mineral wool without stone is mineral wool with heavy metal content lower than 5mg/kg, the fiber diameter is not more than 9 μm, the slag ball content is not more than 10 wt%, and the volume weight is 70kg/m3. The particle size of the mica powder is 150 meshes.
The dry density of the sound-insulating vibration-damping coating of the embodiment is 495kg/m3。
The sound-insulation shock-absorption coating is prepared by the following specific steps:
(1) taking water 40 times the weight of the thickening agent, adding the thickening agent, and stirring and dispersing uniformly at the rotating speed of 1500r/min for later use;
(2) mixing the VAE emulsion with the rest water, and stirring and mixing uniformly at the rotating speed of 25 r/min; adding a defoaming agent and a preservative, and continuously stirring and uniformly mixing at the rotating speed of 25r/min to obtain a mixed solution;
(3) adding the thickener dispersed in the step (1) into the mixed solution in the step (2), and continuously stirring and uniformly mixing at the rotating speed of 25 r/min;
(4) then adding the floating beads, the stone-free mineral wool and the mica powder; wherein, 3 batches of add are equallyd divide equally to floating pearl, no stone mineral wool and mica powder, specific: adding the stone-free mineral wool, and then adding the floating beads and the mica powder into a batch of feeding materials; after the feeding of one batch is finished, continuously stirring and uniformly mixing, and then feeding the next batch.
After the feeding of the floating beads, the stone-free mineral wool and the mica powder is finished, stirring and mixing are continuously carried out for 1.0h at the rotating speed of 25 r/min.
(5) And after the pigment is added for color mixing, adding the pigment in 3 batches to obtain the sound-insulation damping coating.
Example 2
The sound-insulation shock-absorption coating comprises the following components in percentage by weight:
wherein the volume weight of the floating bead is 550kg/m3The particle size is 100 meshes. The mineral wool without stone is mineral wool with heavy metal content lower than 5mg/kg, the fiber diameter is not more than 9 mu m, the slag ball content is not more than 10 wt%, and the volume weight is 80kg/m3. The particle size of the mica powder is 200 meshes.
The dry density of the sound-insulating vibration-damping coating material of this example was 477kg/m3。
The sound-insulation shock-absorption coating is prepared by the following specific steps:
(1) taking water with the weight 50 times that of the thickening agent, adding the thickening agent, and stirring and dispersing uniformly at the rotating speed of 1200r/min for later use;
(2) mixing the VAE emulsion with the rest water, and stirring and mixing uniformly at the rotating speed of 30 r/min; adding a defoaming agent and a preservative, and continuously stirring and uniformly mixing at the rotating speed of 30r/min to obtain a mixed solution;
(3) adding the thickener dispersed in the step (1) into the mixed solution in the step (2), and continuously stirring and uniformly mixing at the rotating speed of 30 r/min;
(4) then adding the floating beads, the stone-free mineral wool and the mica powder; wherein, it equallys divide 5 batches to add to float pearl, no stone mineral wool and mica powder, and is specific: adding the stone-free mineral wool, and then adding the floating beads and the mica powder into a batch of feeding materials; after the feeding of one batch is finished, continuously stirring and uniformly mixing, and then feeding the next batch.
After the feeding of the floating beads, the stone-free mineral wool and the mica powder is finished, stirring and mixing are continuously carried out for 1.0h at the rotating speed of 30 r/min.
(5) And after the pigment is added for color mixing, adding the pigment in 3 batches to obtain the sound-insulation damping coating.
Example 3
The sound-insulation shock-absorption coating comprises the following components in percentage by weight:
wherein the volume weight of the floating bead is 450kg/m3Granule of Chinese medicineThe diameter is 100 meshes. The mineral wool without stone is purchased from mineral product processing factory of Yazhi in Lingshou county, and has heavy metal content of less than 5mg/kg, fiber diameter of no more than 9 μm, slag ball content of no more than 10 wt%, and volume weight of 100kg/m3. The particle size of the mica powder is 150 meshes.
The dry density of the sound-insulating and shock-absorbing coating material of the present example was 513kg/m3。
The sound-insulation shock-absorption coating is prepared by the following specific steps:
(1) taking water with the weight 45 times that of the thickening agent, adding the thickening agent, and stirring and dispersing uniformly at the rotating speed of 800r/min for later use;
(2) mixing the VAE emulsion with the rest water, and stirring and mixing uniformly at the rotating speed of 25 r/min; adding a defoaming agent and a preservative, and continuously stirring and uniformly mixing at the rotating speed of 25r/min to obtain a mixed solution;
(3) adding the thickener dispersed in the step (1) into the mixed solution in the step (2), and continuously stirring and uniformly mixing at the rotating speed of 25 r/min;
(4) then adding the floating beads, the stone-free mineral wool and the mica powder; wherein, float pearl, no stone mineral wool and mica powder equally divide 4 batches and add, specific: adding the stone-free mineral wool, and then adding the floating beads and the mica powder into a batch of feeding materials; after the feeding of one batch is finished, continuously stirring and uniformly mixing, and then feeding the next batch.
After the feeding of the floating beads, the stone-free mineral wool and the mica powder is finished, stirring and mixing are continuously carried out for 1.5h at the rotating speed of 25 r/min.
(5) And after the pigment is added for color mixing, adding the pigment in 2 batches to obtain the sound-insulation damping coating.
Example 4
The sound-insulation shock-absorption coating comprises the following components in percentage by weight:
wherein the volume weight of the floating bead is 600kg/m3The particle size is 100 meshes. Said stone-free mineral wool isMineral wool with heavy metal content lower than 5mg/kg, fiber diameter not more than 9 μm, slag ball content not more than 10 wt%, and volume weight of 60kg/m3. The particle size of the mica powder is 200 meshes.
The dry density of the sound-insulating vibration-damping coating material of this example was 506kg/m3。
The sound-insulation shock-absorption coating is prepared by the following specific steps:
(1) taking water with the weight 50 times that of the thickening agent, adding the thickening agent, and stirring and dispersing uniformly at the rotating speed of 1200r/min for later use;
(2) mixing the VAE emulsion with the rest water, and stirring and mixing uniformly at the rotating speed of 30 r/min; adding a defoaming agent and a preservative, and continuously stirring and uniformly mixing at the rotating speed of 30r/min to obtain a mixed solution;
(3) adding the thickener dispersed in the step (1) into the mixed solution in the step (2), and continuously stirring and uniformly mixing at the rotating speed of 30 r/min;
(4) then adding the floating beads, the stone-free mineral wool and the mica powder; wherein, it equallys divide 5 batches to add to float pearl, no stone mineral wool and mica powder, and is specific: adding the stone-free mineral wool, and then adding the floating beads and the mica powder into a batch of feeding materials; after the feeding of one batch is finished, continuously stirring and uniformly mixing, and then feeding the next batch.
After the feeding of the floating beads, the stone-free mineral wool and the mica powder is finished, stirring and mixing are continuously carried out for 1.0h at the rotating speed of 30 r/min.
(5) And after the pigment is added for color mixing, adding the pigment in 3 batches to obtain the sound-insulation damping coating.
Performance testing
1. Test of Combustion Performance
The sound-insulating vibration-damping coating of examples 1 to 4 was measured according to the detection methods of GB/T14402-2007 measurement of combustion heat value of building materials and products and GB/T11785-2005 method of measuring radiant heat source for combustion performance of flooring materials, and the judgment was made according to the basis of GB8624-2012 classification of combustion performance of building materials and products, and the judgment results are shown in Table 1.
TABLE 1 Combustion Performance test results of soundproof vibration damping coating materials of examples 1 to 4
From the results in table 1, the measured combustion performance meets the requirements of GB 8624A (A2) grade, the grade of the smoke-producing characteristic reaches s1 grade, and the sound-insulating and shock-absorbing coating has good flame-retardant and fireproof effects and high use fireproof safety.
2. Impact sound improvement test
Part 7 of Acoustic building and construction Member Acoustic measurement according to GB/T19889.7-2005: the detection method of the floor impact sound insulation field measurement measures the sound insulation damping coating (the thickness of the sound insulation damping coating is 3mm, the thickness of the reinforced concrete floor is 100mm) in the embodiment 2, and judges according to the basis of GB 50118 and 2010 (civil building sound insulation design Specification), wherein the sound insulation measurement curve is shown in figure 1, and the recorded sound insulation measurement result is shown in table 2.
TABLE 2 floor impact sound insulation detection record
| 1/3 octave center frequency (Hz) | 100 | 125 | 160 | 200 | 250 | 315 | 400 | 500 |
| Normalized impact sound pressure level L' nT (dB) | 61.5 | 63.1 | 62.7 | 65.2 | 65.7 | 66.1 | 66.9 | 68.3 |
| 1/3 octave center frequency (Hz) | 630 | 800 | 1k | 1.25k | 1.6 |
2k | 2.5k | 3.15k |
| Normalized impact sound pressure level L' nT (dB) | 69.1 | 67.9 | 67.7 | 68.1 | 66.3 | 65.8 | 63.3 | 60.0 |
As can be seen from the results shown in Table 2 and FIG. 1, the measured weighted normalized impact sound pressure level L' nTw is 71dB, and the measured floor impact sound insulation performance meets the standard requirement of the floor impact sound insulation between living rooms of the residential buildings in GB 50118-2010 (the weighted normalized impact sound pressure level is less than or equal to 75dB) design Specification for civil buildings.
Therefore, the sound-insulation shock-absorption coating has good sound-insulation and noise-reduction effects, particularly has excellent sound-insulation and shock-absorption and noise-reduction double noise-reduction effects on the impact sound of the floor, and can effectively insulate sound between floors when used between the floors of the floors, thereby effectively avoiding noise transmission between the floors and being beneficial to building a quiet and comfortable living room environment for people.
3. Detection of harmful volatile substances and heavy metals
The sound-insulating and shock-absorbing coatings of examples 1 to 4 were subjected to detection of the content of harmful volatile substances and heavy metals, and judged according to the basis of GB18582-2008 "Limit of harmful substances in interior wall coatings of interior decoration materials" (aqueous wall coatings), and the detection and judgment results are shown in Table 3.
TABLE 3 detection results of harmful volatile substances and heavy metals in the soundproof and vibration damping coatings of examples 1 to 4
The detection results in table 3 show that all the detection items meet the standard requirements of GB 18582-.
4. Abrasion resistance test
The sound-and shock-absorbing coatings of examples 1 to 4 were subjected to abrasion resistance tests according to the test method of CB/T1768-. The sound-insulation damping coating has good wear resistance, can be well applied to coating of building walls, has sound insulation and noise prevention, has high use stability, and is not easy to be rubbed and loosened and separated from the walls.
The above embodiments are merely preferred embodiments of the present invention, and the technical solutions of the present invention are described in further detail, but the scope and implementation of the present invention are not limited thereto, and any changes, combinations, deletions, substitutions or modifications that do not depart from the spirit and principle of the present invention are included in the scope of the present invention.
Claims (10)
1. The sound-insulation shock-absorption coating is characterized by comprising the following components in percentage by weight:
the auxiliary materials comprise a defoaming agent, a preservative, a thickening agent and a pigment; and the mass ratio of the defoaming agent to the preservative to the thickening agent to the pigment is 2.0-2.5:1.5-2.0:2: 4.
2. The sound-insulating and shock-absorbing coating as claimed in claim 1, wherein the floating bead has a volume weight of 450-600kg/m3The particle size is 100 meshes.
3. The sound-insulating and shock-absorbing coating as claimed in claim 1, wherein the mineral wool is mineral wool having a heavy metal content of less than 5mg/kg, a fiber diameter of not more than 9 μm, a shot content of not more than 10 wt%, and a bulk density of 60 to 100kg/m3。
4. The sound-insulating and shock-absorbing coating as claimed in claim 1, wherein the particle size of the mica powder is 150-200 mesh.
5. The sound-insulating and shock-absorbing paint as claimed in claim 1, wherein the mass ratio of the antifoaming agent to the preservative to the thickener to the pigment is 2.5:1.5:2: 4.
6. The sound-proofing and shock-absorbing coating material as claimed in claim 1, wherein said thickener is hydroxyethyl cellulose.
7. The sound-insulating and shock-absorbing coating as claimed in claim 1, wherein said pigment is ferric oxide.
8. A method for preparing the soundproof shock absorbing coating material according to any one of claims 1 to 7, comprising the steps of:
(1) taking water 40-50 times the weight of the thickening agent, adding the thickening agent, and stirring and dispersing uniformly at the rotating speed of 800-1500r/min for later use;
(2) mixing the VAE emulsion with the rest water, and stirring and mixing uniformly at the rotating speed of 25-30 r/min; adding a defoaming agent and a preservative, and continuously stirring and uniformly mixing at the rotating speed of 25-30r/min to obtain a mixed solution;
(3) adding the thickener dispersed in the step (1) into the mixed solution in the step (2), and continuously stirring and uniformly mixing at the rotating speed of 25-30 r/min;
(4) then adding the floating beads, the stone-free mineral wool and the mica powder, and continuously stirring and mixing for 1.0-1.5h at the rotating speed of 25-30 r/min;
(5) and adding the pigment to perform color mixing to obtain the sound-insulation damping coating.
9. The preparation method according to claim 8, wherein in the step (4), the floating beads, the stone-free mineral wool and the mica powder are added in 3-5 batches, specifically:
adding the stone-free mineral wool, and then adding the floating beads and the mica powder into a batch of feeding materials; after the feeding of one batch is finished, continuously stirring and uniformly mixing, and then feeding the next batch.
10. The method according to claim 8, wherein in the step (5), the pigment is added in 2 to 3 batches.
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| CN112011240A (en) * | 2020-09-04 | 2020-12-01 | 惠州市百胜声学科技有限公司 | Sound insulation coating for building floor and preparation method thereof |
| CN112322082A (en) * | 2020-10-30 | 2021-02-05 | 惠州市金卓越实业有限公司 | Novel damping sound-insulation coating and preparation method thereof |
| CN112592142A (en) * | 2020-12-30 | 2021-04-02 | 浙江创想节能科技有限公司 | High-temperature-resistant sound-insulation noise-reduction coating for equipment and preparation method thereof |
| CN113667368A (en) * | 2021-09-14 | 2021-11-19 | 惠州市汉惠河环境科技有限公司 | Reinforced concrete floor impact sound insulation coating and preparation method thereof |
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| CN111441522A (en) * | 2020-05-12 | 2020-07-24 | 佛山市高明长峰建设工程有限公司 | Combined damping and noise reducing floor slab and preparation method thereof |
| CN112011240A (en) * | 2020-09-04 | 2020-12-01 | 惠州市百胜声学科技有限公司 | Sound insulation coating for building floor and preparation method thereof |
| CN112322082A (en) * | 2020-10-30 | 2021-02-05 | 惠州市金卓越实业有限公司 | Novel damping sound-insulation coating and preparation method thereof |
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| CN114015313A (en) * | 2021-11-24 | 2022-02-08 | 河北三棵树涂料有限公司 | Flame-retardant sound-insulation coating and preparation method thereof |
| CN114873984A (en) * | 2022-05-12 | 2022-08-09 | 西南交通大学 | Medium-low frequency sound-absorbing material and preparation method thereof |
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