CN108343194B - Capsule wallboard capable of effectively blocking low-frequency noise - Google Patents
Capsule wallboard capable of effectively blocking low-frequency noise Download PDFInfo
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- CN108343194B CN108343194B CN201810088700.9A CN201810088700A CN108343194B CN 108343194 B CN108343194 B CN 108343194B CN 201810088700 A CN201810088700 A CN 201810088700A CN 108343194 B CN108343194 B CN 108343194B
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- 239000002775 capsule Substances 0.000 title claims abstract description 67
- 230000000903 blocking effect Effects 0.000 title claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 50
- 239000010410 layer Substances 0.000 claims abstract description 38
- 239000002245 particle Substances 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 21
- 239000012792 core layer Substances 0.000 claims abstract description 14
- 238000013016 damping Methods 0.000 claims abstract description 14
- 239000002344 surface layer Substances 0.000 claims abstract description 7
- 239000003063 flame retardant Substances 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 239000011324 bead Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 239000002910 solid waste Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005187 foaming Methods 0.000 abstract description 3
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Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
-
- 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
- E04B1/84—Sound-absorbing elements
- E04B1/86—Sound-absorbing elements slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Electromagnetism (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a capsule wall board capable of effectively blocking low-frequency noise, which comprises a core layer made of PU foaming material, damping layers made of fireproof flame-retardant materials on two sides of the core layer, and metal surface layers on the outer sides of the damping layers, wherein at least one layer of capsule array is dispersed in the core layer, micro powder particles with the volume of 20-30% of the volume of an inner cavity of a capsule are filled in the capsule, and the micro powder particles are formed by mixing A micro powder and B micro powder with two different particle sizes. The invention is seen from the overall structure, the sound insulation performance of the wall board is enhanced by the sandwich structure constructed by a plurality of layers of different materials, wherein the three-dimensional phonon crystal structure constructed by the capsule array further eliminates the low-frequency noise which can not be isolated by the sandwich structure, and the micro powder particles in the capsule vibrate in the transmission process of the noise, particularly the low-frequency noise, thereby effectively consuming the energy of the low-frequency noise.
Description
Technical Field
The invention relates to the field of wall structures in the building industry, in particular to a capsule wall plate capable of effectively blocking low-frequency noise.
Background
The human ear is capable of distinguishing sounds in the range of 15 hz to 2 khz. Generally, various sounds used for human communication are in the range of 200 Hz to 8000 Hz, and sounds below 200 Hz are low-frequency sounds, wherein frequencies having a significant influence on the human body are mainly in the frequency range of 3-50 Hz. High frequency noise can be attenuated rapidly with distance or encountering obstacles, for example, a point source of high frequency noise can be reduced by 6 db per 10 m. The low-frequency noise is slowly reduced, the sound wave is longer, the low-frequency noise can easily pass through barriers, rush for a long distance and penetrate through the wall and the wall to penetrate into the human ear. Although the direct influence of low-frequency noise on human physiology is not as obvious as high-frequency noise, the low-frequency noise has long-term influence on human health, the amplitude of the low-frequency noise in an antinode is strongest, and the low-frequency noise has the greatest harm to human physiology and psychological health. Psychological effects are mainly manifested as annoyance, physiological effects are mainly caused by middle ear oppression, ear pain, tympanic membrane injury, tinnitus and headache, nausea, vomiting, imbalance of balance, blurred vision, etc. when infrasonic stimulation is strong, infrasonic is also reported to cause abnormal changes of blood pressure, heart rhythm and respiration, and the infrasonic has damage effects on auditory system, nervous system, cardiovascular system, digestive system and metabolic function.
At present, the wallboard generally adopts a multilayer laminated structure made of different materials, middle and high frequency noise above 200 Hz is effectively blocked, but the low frequency noise blocking effect is always poor.
Disclosure of Invention
The invention aims to solve the technical problem of providing a capsule wall plate capable of effectively blocking low-frequency noise.
The invention is realized by the following technical scheme:
the utility model provides an effective separation low frequency noise's capsule wallboard, includes the damping layer that the fire prevention fire-retardant material of sandwich layer, sandwich layer both sides that the PU expanded material made to and the metal surface course in the damping layer outside, at least one deck capsule array spreads in the sandwich layer, and capsule inside fills 20-30% of the miropowder particulate matter of capsule inner chamber volume, and the miropowder particulate matter is formed by the A miropowder and the B miropowder mixture of two kinds of different particle diameters.
The invention has the further improvement scheme that the diameter of the capsules is D, the distance between the capsules is D, and the D is more than or equal to D and less than or equal to 5D; the particle size of the A micro powder is 80-200 meshes, the particle size of the B micro powder is 2-3 times of the particle size of the A micro powder, and the mass of the A micro powder accounts for 85-95% of the mass of the total micro powder. According to the use environment, the filling ratio of the capsule array and the micro powder particles is adjusted, so that the purpose of isolating different frequency characteristic noises is achieved.
In a further development of the invention, the capsule array is homogeneously distributed when it is a monolayer.
In a further improvement of the present invention, when the capsule array has more than one layer, the capsules of each layer are arranged in a staggered manner. The thick multilayer array that adopts of sandwich layer thickness is crisscross arranges, and the effect that gives sound insulation is better.
The invention has the further improvement scheme that the capsule skin layer is made of polyvinyl chloride material, and the micro powder particles in the capsule are glass beads or solid waste material micro powder.
In a further improvement of the invention, the surface layer is made of an aluminum plate or an iron plate.
Compared with the prior art, the invention has the following obvious advantages:
the invention is seen from the overall structure, the sound insulation performance of the wall board is enhanced by the sandwich structure constructed by a plurality of layers of different materials, wherein the three-dimensional phonon crystal structure constructed by the capsule array further eliminates the low-frequency noise which can not be isolated by the sandwich structure, and the micro powder particles in the capsule vibrate in the transmission process of the noise, particularly the low-frequency noise, thereby effectively consuming the energy of the low-frequency noise.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is an enlarged structure schematic diagram of the capsule.
Fig. 3 is a graph showing the effect of the wall panels of example 1, example 2, example 3 and example 4 on blocking low frequency sound.
Fig. 4 is a graph of the effect of the wallboards of example 1, comparative example 2, comparative example 3 and comparative example 4 on blocking low frequency sound.
Detailed Description
As shown in fig. 1 and 2, the invention comprises a core layer 1 made of PU foam material, damping layers 2 made of fireproof flame-retardant material on both sides of the core layer, and a metal surface layer 3 (which can be an aluminum plate or an iron plate) on the outer side of the damping layers, wherein at least one layer of capsule array is dispersed in the core layer 1, the capsule array is uniformly dispersed when the capsule array is a single layer, when the capsule array is more than one layer, each layer of capsules are arranged in a staggered manner (for example, three layers are shown in the figure), the diameter of the capsule 4 is D, the distance between the capsules is D, and D is not less than D and; the capsule 4 is filled with micro powder particles 5 which are 20-30% of the volume of the inner cavity of the capsule, the micro powder particles 5 are formed by mixing two kinds of micro powder A51 and micro powder B52 with different particle sizes, the particle size of the micro powder A51 is 80-200 meshes, the particle size of the micro powder B52 is 2-3 times of that of the micro powder A, and the mass of the micro powder A52 accounts for 85-95% of the mass of the total micro powder. The capsule skin 53 is made of polyvinyl chloride material, and the micro powder particles 5 in the capsule are glass beads or solid waste material micro powder.
Example 1
The damping layer comprises a core layer 1 made of PU foaming material, a damping layer 2 made of fireproof flame-retardant material and arranged on two sides of the core layer, and an aluminum plate surface layer 3 arranged on the outer side of the damping layer, wherein a layer of capsule array is uniformly distributed in the core layer 1, the diameter of each capsule 4 is 0.5cm, and the distance between every two capsules is 2 cm; the capsule 4 is filled with 30% of micro powder particles 5 in the volume of the inner cavity of the capsule, the micro powder particles 5 are formed by mixing two kinds of micro powder A51 and micro powder B52 with different particle sizes, the particle size of the micro powder A51 is 120 meshes, the particle size of the micro powder B52 is 3 times of that of the micro powder A, and the mass of the micro powder A52 accounts for 90% of the mass of the total micro powder. The capsule skin layer 53 is made of polyvinyl chloride material, and the micro powder particles 5 in the capsule are glass beads.
Example 2
Three capsule arrays are distributed in the core layer 1, and the capsules of each layer are arranged in a staggered mode, and the rest is as in the embodiment 1.
Example 3
The surface layer 3 is a steel plate, and the distance between the capsules is 1 cm. Otherwise as in example 1.
Example 4
The capsule 4 is filled with micro powder particles 5 accounting for 20% of the volume of the inner cavity of the capsule. Otherwise as in example 1.
Comparative example 1
The damping layer comprises a core layer 1 made of PU foaming material, damping layers 2 made of fireproof flame-retardant materials on two sides of the core layer, and an aluminum plate surface layer 3 on the outer side of the damping layers, wherein a capsule array is not arranged in the core layer 1. The remaining layer thicknesses were as in example 1.
Comparative example 2
The particle size of the micro powder particles 5 in the capsule 4 is 50 meshes of single-diameter micro powder, and the rest is as in example 1.
Comparative example 3
The spacing between the capsules was 5 cm. Otherwise as in example 1.
Comparative example 4
The capsule 4 is filled with 80% of the micro-powder particles 5 in the volume of the inner cavity of the capsule. Otherwise as in example 1.
The wallboard prepared in examples 1 to 4 and comparative examples 1 to 4 was tested by an AWA6128A standing wave tube sound absorption coefficient tester, the testing frequency was 50-800Hz, and the testing results are shown in FIGS. 3 and 4. FIG. 3 is a graph showing the sound absorption curves of examples 1, 2, 3 and 4, and FIG. 4 is a graph showing the sound absorption curves of examples 1 and comparative examples 1, 2, 3 and 4, wherein it can be seen that the sound absorption coefficients of examples are all between 0.35 and 0.6 in the low frequency sound barrier below 200 Hawster, while the sound absorption coefficients of comparative examples are mostly below 0.35, not exceeding 0.45, and the lowest not less than 0.1, and the wallboard structure of the present invention has a good effect on the sound absorption of low frequency sound. Meanwhile, the medium-frequency sound absorption effect of more than 200 Hatz is improved to a certain extent.
Claims (4)
1. The utility model provides an effective separation low frequency noise's capsule wallboard, includes sandwich layer (1) that PU expanded material made, damping layer (2) that the fire prevention fire-retardant material of sandwich layer both sides was made to and metal covering (3) in the damping layer outside, its characterized in that: at least one layer of capsule array is scattered in the core layer (1), micro powder particles (5) which are 20-30% of the volume of the inner cavity of the capsule are filled in the capsule (4), the micro powder particles (5) are formed by mixing A micro powder (51) and B micro powder (52) with two different particle sizes, the diameter of the capsule (4) is D, the distance between the capsules is D, and the D is not less than 5D; the particle size of the A micro powder (51) is 80-200 meshes, the particle size of the B micro powder (52) is 2-3 times of the particle size of the A micro powder, the mass of the A micro powder (52) accounts for 85-95% of the mass of the total micro powder, the capsule skin layer (53) is made of polyvinyl chloride materials, and the micro powder particles (5) in the capsule are glass beads or solid waste material micro powder.
2. The capsule wall panel for effectively blocking low frequency noise according to claim 1, wherein: the capsule array is uniformly dispersed when it is a single layer.
3. The capsule wall panel for effectively blocking low frequency noise according to claim 1, wherein: when the capsule array is more than one layer, the capsules of each layer are arranged in a staggered mode.
4. The capsule wall panel for effectively blocking low frequency noise according to claim 1, wherein: the surface layer (3) is made of an aluminum plate or an iron plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810088700.9A CN108343194B (en) | 2018-01-30 | 2018-01-30 | Capsule wallboard capable of effectively blocking low-frequency noise |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810088700.9A CN108343194B (en) | 2018-01-30 | 2018-01-30 | Capsule wallboard capable of effectively blocking low-frequency noise |
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| Publication Number | Publication Date |
|---|---|
| CN108343194A CN108343194A (en) | 2018-07-31 |
| CN108343194B true CN108343194B (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810088700.9A Active CN108343194B (en) | 2018-01-30 | 2018-01-30 | Capsule wallboard capable of effectively blocking low-frequency noise |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282136A (en) * | 2020-11-02 | 2021-01-29 | 深圳千里马装饰集团有限公司 | Partition wall structure with high sound insulation effect |
| CN112627429B (en) * | 2020-12-29 | 2022-07-12 | 中海建筑有限公司 | Composite heat-preservation steel rib concrete integrated building structure and construction process |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10266388A (en) * | 1997-03-27 | 1998-10-06 | Matsushita Electric Works Ltd | Damping sound insulating panel |
| CN201250455Y (en) * | 2008-07-18 | 2009-06-03 | 黄传耀 | Combinatorial structure of fireproof and insulating wall panel |
| CN105156576A (en) * | 2014-06-06 | 2015-12-16 | 泰州市嘉新新材料有限公司 | Rubber single-frequency noise barrier |
| CN105448287B (en) * | 2015-11-16 | 2019-11-08 | 浙江大学 | A kind of perforated plate resonance sound-absorbing device with built-in cavity |
| CN106761298A (en) * | 2016-12-24 | 2017-05-31 | 信宜市现代中兴门业有限公司 | A kind of soundproof door |
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Address after: 223200 Jiangsu province Huaian Huaian District bamboo Lane Street Huaiyin Institute of Technology Xiao Hu Campus Patentee after: HUAIYIN INSTITUTE OF TECHNOLOGY Address before: 223005 Jiangsu city of Huaian Province Higher Education Park while the road No. 1 Patentee before: HUAIYIN INSTITUTE OF TECHNOLOGY |
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Application publication date: 20180731 Assignee: Jiangsu Dongchen Building Materials Co.,Ltd. Assignor: HUAIYIN INSTITUTE OF TECHNOLOGY Contract record no.: X2023980051381 Denomination of invention: A capsule wall panel that effectively blocks low-frequency noise Granted publication date: 20201027 License type: Common License Record date: 20231212 |