CN106906918A - A kind of clad can broadband acoustic board - Google Patents
A kind of clad can broadband acoustic board Download PDFInfo
- Publication number
- CN106906918A CN106906918A CN201710026757.1A CN201710026757A CN106906918A CN 106906918 A CN106906918 A CN 106906918A CN 201710026757 A CN201710026757 A CN 201710026757A CN 106906918 A CN106906918 A CN 106906918A
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- CN
- China
- Prior art keywords
- glass fibre
- pvf
- cotton
- thickness
- guard
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003365 glass fiber Substances 0.000 claims abstract description 64
- 229920000742 Cotton Polymers 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 19
- 230000002745 absorbent Effects 0.000 claims abstract description 14
- 239000002250 absorbent Substances 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 14
- 238000013016 damping Methods 0.000 claims abstract description 13
- 239000012528 membrane Substances 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims description 12
- 239000012783 reinforcing fiber Substances 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 4
- 229920000784 Nomex Polymers 0.000 claims description 3
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 229920006334 epoxy coating Polymers 0.000 claims description 3
- 239000004763 nomex Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000002604 ultrasonography Methods 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920002978 Vinylon Polymers 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 230000003313 weakening effect Effects 0.000 abstract description 3
- 239000002365 multiple layer Substances 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 9
- 239000011490 mineral wool Substances 0.000 description 4
- 239000011358 absorbing material Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000013475 authorization Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 208000024780 Urticaria Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 201000010260 leiomyoma Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Laminated Bodies (AREA)
Abstract
A kind of clad can broadband acoustic board with glass fibre guard glass fibre cotton A be the first absorbent treatment, with square ring damping mat B as support, it is the second absorbent treatment with glass fibre guard glass fibre cotton C, is close to rearrange filling core according to the mode of A/B/C, take fibre-reinforced PVF composite membranes as the facing material for filling core；Wherein, glass fibre guard glass fibre cotton A is formed by multiple-layer stacked, and fibre-reinforced PVF composite membranes directly coat post heat-seal.It is facing material that the present invention uses fibre-reinforced PVF films, and good weatherability can play prolonged protective effect to core; and have obvious weakening to low frequency noise; composite hollow structure reduces medium-high frequency noise again, and various severe rugged environments, and acoustic frequency bandwidth are adapted on the whole.
Description
Technical field
The invention belongs to absorbing sound and lowering noise field of material technology, and in particular to a kind of clad can broadband acoustic board.
Background technology
Inorganic fibers such as mineral wool, rock wool because have sound absorbing capabilities are excellent, unit weight is light, it is non-ignitable, be stale-proof, it is heat-insulated
It is relatively cheap etc. characteristic, and price, become the sound-absorbing material being most widely used in acoustic engineering, but it again because
Quality is soft, low intensity, and fibroid is crisp, it is easy to fracture, and in construction and installation, can form fiber dust polluting environment.These
Chopped fiber dust makes skin urtication, can also influence human respiratory.Therefore, in actual use, can use facing material with
Fiber is prevented to be scattered.Conventional has glass fabric, punching rate aluminium foil high, PVC micropore facings etc., and the big multipotency of these overlays is protected
The sound absorption characteristics of mineral wool are held, but weatherability is poor, is unsuitable for open air that is moist and being drenched with rain and uses.The advantage of plastic sheeting clad can
Can be waterproof and dustproof, isolation humidity, but same common plasticses film is easily aging, it is not durable.
The characteristics of PVF films have antiultraviolet, antistatic, dust-proof, waterproof, intensity high and durable, using PVF as covering
Facestock material, can overcome the use environment of harshness, while absorption of the whole acoustic board to low frequency noise can be lifted, " PVF films exist document
Application in fiber absorbing material "（Zhongxiang City's jade tablet, wishes application [J] the electroacoustic techniques of the raw PVF films of training in fiber absorbing material,
2002（1）：11—12）Point out that PVF films clad can has lifting to the acoustic absorptivity of the middle low-frequency range of below mineral wool 2000Hz,
Then have to more than 2500Hz and slightly decline.The sound absorption resonator chamber formed after film is tensioned can be lifted significantly makes an uproar to low frequency
The absorbability of sound.
To be described in the Chinese patent of CN 202986208U, a kind of microperforated panel film adhesion coating is compound to be inhaled Authorization Notice No.
Sound plate, including three layers of sound absorption combination layer, are successively that microperforated panel absorbent treatment, viscoelastic structure absorbent treatment and the film of uniform micropore are inhaled
Sound layer, is bonded between film absorbent treatment and microperforated panel absorbent treatment by viscoelastic structure absorbent treatment, and viscoelastic structure absorbent treatment has bullet
Property through hole and fine resilient channels.Such a structure increases wide band sound absorption, but defect easily aging after exposure does not have gram
Clothes.
Authorization Notice No. discloses a kind of glass fibre suspended absorber for the Chinese patent of CN 203594122U, including
Several plane acoustic boards, described several plane acoustic boards bind the polyhedron to form a closing by glue, described flat
Face acoustic board includes fiberglass-based flaggy, and the fiberglass-based flaggy outside is adhesive with glass carpet veneer and fire prevention by glue
Weaving cloth.The sound absorber sound absorption structure is single, it is impossible to meet wide band noise absorption.
Easy ageing failure can effectively be solved as facing material using PVF films, interior material pollutes asking for environment after exposing
Topic, at utmost using the sound absorbing capabilities of glass fibre.
The content of the invention
It is an object of the invention to provide a kind of clad can broadband acoustic board.
To realize the purpose of the present invention, the technical scheme for being used is：A kind of clad can broadband acoustic board, its feature exists
In：It is the first absorbent treatment with glass fibre guard glass fibre cotton A, is second with glass fibre guard glass fibre cotton C with square ring damping mat B as support
Absorbent treatment, is close to rearrange filling core according to the mode of A/B/C, is filling core with fibre-reinforced PVF composite membranes
Facing material；The gross thickness of the clad can broadband acoustic board is about 20 ~ 50mm.
Described glass fibre guard glass fibre cotton A is consistent with C length and width, and unit weight is 16 ~ 48kg/m3, individual glass fibers it is a diameter of
1.5 ~ 7 μm, in normal distribution；Wherein, glass fibre guard glass fibre cotton A by multi-layered thickness for 0.6 ~ 1.4mm glass mat superposition and
Into thickness is 5 ~ 10mm；Glass fibre guard glass fibre cotton C is Nomex, and thickness is 10 ~ 20mm.
Described square ring damping mat B length and width are consistent with glass fibre guard glass fibre cotton A, and thickness is 5 ~ 20mm, and four side frames are wide
Degree is consistent, and the ratio that central space area accounts for the gross area is not less than 90%.
Described facing material is that, by fibre-reinforced composite membrane, specifically PVF/PET/ reinforcing fibers are constituted in order
Composite membrane, thickness is about 30 ~ 80 μm；Wherein the exposed surface of PVF is inactive surfaces, and with self-cleaning ability, surface can be only
25 ~ 28 dynes；Reinforcing fiber is nylon fiber or polyester fiber, is scribbled by being layed in 90 cross-likes after vinyl chloride-vinyl acetate resin dipping
The pet sheet face of epoxy coating, the interval between parallel reinforcing fiber is consistent, about 0.25 ~ 1cm.
The preparation method of the clad can broadband acoustic board is as follows：By glass fibre guard glass fibre cotton A, square ring damping mat B and glass
Glass cellucotton felt C is arranged according to the mode of B/A/B, constitutes core, and core is pasted using fibre-reinforced PVF composite membranes
Cover, PVF mono- is faced outwardly, fiber architecture one side inwardly, facing material is pulled open, and makes film corrugationless, to the edge after cladding
Place carries out ultrasound heat-sealing and obtains finished product.
The present invention is had an advantageous effect in that：With PVF films as facing material, with excellent weatherability, anti-corruption
Erosion radiation hardness, self-cleaning ability is strong, and has obvious weakening effect to low frequency noise；The blank parts of square ring damping mat
Cavity is formed, sound absorption frequency domain has been widened；The glass fibre guard glass fibre cotton centering high frequency noise of multiple-layer stacked has efficient weakening energy
Power, the thicker glass fibre guard glass fibre cotton C also abilities with reflection sound wave.
Brief description of the drawings
Fig. 1 is a kind of structure chart of clad can broadband acoustic board.
10 is glass fibre guard glass fibre cotton A in diagram, and 20 is square ring damping mat B, and 30 is glass fibre guard glass fibre cotton C.
Specific embodiment
With reference to specific embodiment, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention, after the present invention has been read, those skilled in the art are to various equivalences of the invention
The modification of form falls within the application appended claims and is limited.
Embodiment
A kind of clad can broadband acoustic board, it is characterised in that：It is the first absorbent treatment with glass fibre guard glass fibre cotton A, with Q-RING
Shape damping mat B is support, is the second absorbent treatment with glass fibre guard glass fibre cotton C, is close to rearrange filled core according to the mode of A/B/C
Material, take fibre-reinforced PVF composite membranes as the facing material for filling core；The gross thickness of the clad can broadband acoustic board is about
30mm。
Glass fibre guard glass fibre cotton A is consistent with C length and width, and unit weight is 32kg/m3, a diameter of 1.5 ~ 3.6 μm of individual glass fibers,
In normal distribution；Wherein, by multi-layered thickness for the glass mat of 0.8mm is formed by stacking, thickness is 6mm to glass fibre guard glass fibre cotton A；
Glass fibre guard glass fibre cotton C is Nomex, and thickness is 12mm.
Square ring damping mat B length and width are consistent with glass fibre guard glass fibre cotton A, and thickness is 5 ~ 20mm, and four side border widths are consistent,
The ratio that central space area accounts for the gross area is not less than 90%.
Facing material is that, by fibre-reinforced composite membrane, what specifically PVF/PET/ reinforcing fibers were constituted in order is combined
Film, thickness is about 50 μm；Wherein the exposed surface of PVF is inactive surfaces, and with self-cleaning ability, surface can only 25 ~ 28 dynes；
Reinforcing fiber is nylon 66 fiber, by being layed in the PET for scribbling epoxy coating in 90 cross-likes after vinyl chloride-vinyl acetate resin dipping
Surface, the interval between parallel reinforcing fiber is consistent, about 0.5cm.
The preparation method of the clad can broadband acoustic board is specifically：By glass fibre guard glass fibre cotton A, square ring damping mat B and
Glass fibre guard glass fibre cotton C is arranged according to the mode of B/A/B, constitutes core, and core is pasted using fibre-reinforced PVF composite membranes
Cover, PVF mono- is faced outwardly, fiber architecture one side inwardly, facing material is pulled open, and makes film corrugationless, to the edge after cladding
Place carries out ultrasound heat-sealing and obtains finished product.
The acoustic board uses combined type hollow structure, average sound absorption coefficient up to 0.85, high frequency acoustic absorptivity more than 0.9,
Sound absorbing capabilities are excellent, can be used for interior decoration, and absorb sound vibration damping in cabin.
The specific embodiment of the present invention is above are only, but design concept of the invention is not limited thereto, all profits
The change that unsubstantiality is carried out to the present invention is conceived with this, the behavior for invading the scope of protection of the invention all should be belonged to.In every case it is
Without departing from the content of technical solution of the present invention, any type of letter made to above example according to technical spirit of the invention
Single modification, equivalent variations and remodeling, still fall within the protection domain of technical solution of the present invention.
Claims (5)
1. a kind of clad can broadband acoustic board, it is characterised in that：It is the first absorbent treatment with glass fibre guard glass fibre cotton A, with square ring
Damping mat B is support, is the second absorbent treatment with glass fibre guard glass fibre cotton C, is close to rearrange filled core according to the mode of A/B/C
Material, take fibre-reinforced PVF composite membranes as the facing material for filling core；The gross thickness of the clad can broadband acoustic board is about 20
~50mm。
2. according to claim 1, it is characterised in that described glass fibre guard glass fibre cotton A is consistent with C length and width, unit weight be 16 ~
48kg/m3, a diameter of 1.5 ~ 7 μm of individual glass fibers, in normal distribution；Wherein, glass fibre guard glass fibre cotton A is by multi-layered thickness
The glass mat of 0.6 ~ 1.4mm is formed by stacking, and thickness is 5 ~ 10mm；Glass fibre guard glass fibre cotton C be Nomex, thickness be 10 ~
20mm。
3. according to claim 1, it is characterised in that described square ring damping mat B length and width and glass fibre guard glass fibre cotton A mono-
Cause, thickness is 5 ~ 20mm, four side border widths are consistent, the ratio that central space area accounts for the gross area is not less than 90%.
4. according to claim 1, it is characterised in that described facing material is by fibre-reinforced composite membrane, specifically
The composite membrane that PVF/PET/ reinforcing fibers are constituted in order, thickness is about 30 ~ 80 μm；Wherein the exposed surface of PVF is inertia table
Face, with self-cleaning ability, surface can only 25 ~ 28 dynes；Reinforcing fiber is nylon fiber or polyester fiber, by vinyl chloride-vinyl acetate resin
The pet sheet face for scribbling epoxy coating is layed in 90 cross-likes after dipping, the interval between parallel reinforcing fiber is consistent,
About 0.25 ~ 1cm.
5. according to claim 1-4, it is characterised in that the preparation method of the clad can broadband acoustic board is as follows：By glass fibers
Vinylon and cotton blend felt A, square ring damping mat B and glass fibre guard glass fibre cotton C are arranged according to the mode of B/A/B, constitute core, are increased using fiber
Strong PVF composite membranes are pasted to core, and PVF mono- is faced outwardly, and fiber architecture one side inwardly, facing material is pulled open, and makes film
Corrugationless, ultrasound heat-sealing is carried out to the edge after cladding and obtains finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710026757.1A CN106906918A (en) | 2017-01-14 | 2017-01-14 | A kind of clad can broadband acoustic board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710026757.1A CN106906918A (en) | 2017-01-14 | 2017-01-14 | A kind of clad can broadband acoustic board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106906918A true CN106906918A (en) | 2017-06-30 |
Family
ID=59206491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710026757.1A Pending CN106906918A (en) | 2017-01-14 | 2017-01-14 | A kind of clad can broadband acoustic board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106906918A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107399426A (en) * | 2017-07-21 | 2017-11-28 | 苏州市君悦新材料科技股份有限公司 | A kind of aviation heat-insulation and heat-preservation module |
| CN108177402A (en) * | 2018-01-03 | 2018-06-19 | 江苏澳盛复合材料科技有限公司 | A kind of carbon glass mixing reinforcing material |
| CN108396776A (en) * | 2018-04-13 | 2018-08-14 | 沈阳建筑大学 | Three layers of class rectangle Urban Underground Complex for having both sqouynd absorption lowering noise, collecting airway dysfunction |
-
2017
- 2017-01-14 CN CN201710026757.1A patent/CN106906918A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107399426A (en) * | 2017-07-21 | 2017-11-28 | 苏州市君悦新材料科技股份有限公司 | A kind of aviation heat-insulation and heat-preservation module |
| CN108177402A (en) * | 2018-01-03 | 2018-06-19 | 江苏澳盛复合材料科技有限公司 | A kind of carbon glass mixing reinforcing material |
| CN108396776A (en) * | 2018-04-13 | 2018-08-14 | 沈阳建筑大学 | Three layers of class rectangle Urban Underground Complex for having both sqouynd absorption lowering noise, collecting airway dysfunction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170630 |