CN110863758B - Sound-absorbing fireproof plate for building - Google Patents
Sound-absorbing fireproof plate for building Download PDFInfo
- Publication number
- CN110863758B CN110863758B CN201911161911.1A CN201911161911A CN110863758B CN 110863758 B CN110863758 B CN 110863758B CN 201911161911 A CN201911161911 A CN 201911161911A CN 110863758 B CN110863758 B CN 110863758B
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- Prior art keywords
- sound
- gypsum board
- board
- silica gel
- fiber
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- 238000000576 coating method Methods 0.000 claims abstract description 34
- 239000000835 fiber Substances 0.000 claims abstract description 33
- 239000011248 coating agent Substances 0.000 claims abstract description 32
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 28
- 239000010440 gypsum Substances 0.000 claims abstract description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000741 silica gel Substances 0.000 claims abstract description 20
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 20
- 238000010521 absorption reaction Methods 0.000 claims abstract description 19
- 229920000642 polymer Polymers 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 12
- 229920001971 elastomer Polymers 0.000 claims abstract description 11
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 238000007731 hot pressing Methods 0.000 claims abstract description 8
- 239000011265 semifinished product Substances 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 6
- 238000004132 cross linking Methods 0.000 claims abstract description 4
- 239000012466 permeate Substances 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 7
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 229920002545 silicone oil Polymers 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 239000000839 emulsion Substances 0.000 abstract description 12
- 238000009413 insulation Methods 0.000 abstract description 9
- 239000000806 elastomer Substances 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 description 6
- 239000012774 insulation material Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 206010011878 Deafness Diseases 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- JZZIHCLFHIXETF-UHFFFAOYSA-N dimethylsilicon Chemical compound C[Si]C JZZIHCLFHIXETF-UHFFFAOYSA-N 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002103 nanocoating Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
- E06B5/161—Profile members therefor
-
- 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
- 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
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
- E04B1/942—Building elements specially adapted therefor slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/20—Doors, windows, or like closures for special purposes; Border constructions therefor for insulation against noise
Abstract
A sound-absorbing fireproof board for buildings. The invention adopts the fiber gypsum board with fire resistance and excellent strength as a basic supporting board (B), at least one large surface of the fiber gypsum board is coated with liquid-solid two-phase silica gel or elastomer emulsion to form a polymer coating (C) with excellent sound absorption effect, then the coating surface of a composite material semi-finished product (B/C) is jointed and jointed with the coating surface of another same semi-finished product (C/B) and is hot-pressed together to form the (B/C/C/B) type composite sound-absorbing fireproof board, wherein the polymer coating (C) can partially permeate into surface openings of the fiber gypsum board, after the subsequent continuous hot-pressing drying or high-temperature crosslinking, the polymer coatings on the surfaces of the two semi-finished products can form a whole, the middle coating plays an important role in improving the sound insulation effect of the fiber gypsum board, and the original gypsum board has excellent fire resistance function, to form the novel sound-absorbing fireproof board for buildings.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to the field of building sound insulation materials, is beneficial to improving the sound insulation and absorption performance of the existing building materials, and can be used for partition walls of houses or fire doors and the like.
Background
The building incident sound source comprises a building external sound source and a building internal sound source, wherein the building external sound source mainly comprises motor vehicle noise, noise of high-sound conversation and the like; the sound source inside the building body means that sound between each room inside the building body and between the upper layer and the lower layer is incident, and the sound source mainly comprises noise of high-sound conversation, noise of a person walking and moving a seat, sound of a television, sound of running water, sound of falling objects and the like.
Noise pollution is one of three major pollutions in the world at present, and the noise pollution not only harms the auditory system of people and makes people tired and deaf, but also accelerates the aging of buildings and influences the precision and the service life of equipment and instruments. Therefore, the noise pollution has great influence on the health and daily life of people. At present, in residential buildings, the sound insulation effect between rooms is limited. The life and the body health of people are influenced to a certain extent. Along with the improvement of the requirements of people on living quality, the requirements on sound insulation of working and living environments are also increased more and more.
The essence of sound is the transmission of sound waves, and the absorption and the conversion of vibration energy in the transmission process are the essence of sound absorption and attenuation, namely the improvement of the absorption and the conversion of the vibration energy by the sound insulation material is essential. Although the law of mass is one of the most basic rules for designing sound insulation materials, namely, the sound insulation performance is generally improved along with the increase of the mass and the thickness of the sound insulation material; however, the current building design requires light weight of materials and reduced occupied effective space, so that the design of a novel sound-absorbing fireproof plate for buildings, which is light in weight, excellent in sound insulation effect and thin, is an epoch requirement.
Disclosure of Invention
The invention adopts a fiber gypsum board with basic fireproof function and excellent strength performance as a basic supporting board (B), at least one large surface and four narrow end surfaces of the fiber gypsum board are coated with liquid-solid two-phase silica gel or elastomer emulsion to form a polymer coating (C) with excellent sound absorption effect, then the coating surface of a composite semi-finished product (B/C) of the fiber gypsum board (B) coated with the polymer coating (C) on one large surface is jointed and jointed with the coating surface of another same semi-finished product (C/B) and is pressed together under heat, thus forming the composite sound-absorbing fireproof board of the (B/C/C/B) type, wherein the polymer coating (C) can partially permeate into surface open pores of the fiber gypsum board under the capillary action and the pressing action of open pores of the fiber gypsum board, and after subsequent continuous hot-pressing drying or high-temperature crosslinking, two semi-manufactured goods surface's polymer coating can form a whole, and middle coating (C) plays the important function that promotes the fiber gypsum board effect that gives sound insulation, and the original gypsum face of the uncoated coating on both sides still has excellent fire prevention function, and the novel sound fire prevention panel of inhaling of sandwich type that prepares like this both has excellent sound insulation performance, still possesses basic fire behavior, constitutes novel building with inhaling sound fire prevention panel. The products of the invention and their novel manufacturing process are further explained below.
The base plate which plays a role in supporting basic mechanics adopts a fiber gypsum board with the thickness of 8-25mm, wherein the fiber reinforced material can be chopped glass fiber, bamboo fiber or other plant fiber, and the specific filling amount of the fiber reinforced material can be controlled to be 10-25% according to different specific conditions; the liquid-solid two-phase silica gel coating is prepared by adopting a mixture of a liquid silica gel raw material which can be crosslinked into a rubber film layer at a high temperature of 90-160 ℃ and high-viscosity dimethyl silicone oil with the viscosity of 1000-500000mPa S at room temperature and 25 ℃, wherein the liquid silica gel material is mainly the liquid silica gel, the liquid silica gel accounts for 60-85% of the weight of the liquid-solid two-phase coating, the rest is the high-viscosity dimethyl silicone oil, and the high-viscosity dimethyl silicone oil can improve the absorption capacity, namely the damping capacity, of the silica gel coating on the vibration energy through the compressible and shearable viscosity performance in the coating, so that the material structure of the liquid-solid two-phase composite silica gel has better damping and sound absorption effects on sound compared with a pure silica gel coating because the organization structure form of a macromolecule after pure silicone rubber crosslinking has a limited energy dissipation effect on sound waves, the high-viscosity dimethyl silicon oil polymer dispersed in the cross-linked silicon rubber has relatively weak physical entanglement, has certain relaxation capacity under the combined action of internal micro-shearing and internal micro-stretching under the action of sound waves, and can form better high-polymer internal friction energy absorption effect; the percentage of the silica gel raw material is lower than 60%, which is not favorable for the strength of the coating, and the viscous absorption effect on sound waves is not good after the percentage is higher than 85%; the viscosity of the dimethyl silicone oil is higher than 1000 mPaS, which is to ensure the necessary entanglement degree of macromolecules of the dimethyl silicone oil, and the excessively low viscosity is also low corresponding to the entanglement degree of the macromolecules, which is not beneficial to viscous energy absorption; too high a viscosity of more than 50 ten thousand mPa S is not good for the vibration relaxation performance of the polymer to sound waves, and is also good for energy absorption like the high entanglement degree of solid rubber. In order to ensure certain sound absorption capacity, the thickness of the liquid-solid two-phase silica gel coating coated on one large surface of the fiber gypsum board is controlled to be 0.30-1.00 mm, and the flatness error of the fiber gypsum board substrate is not easy to smooth due to the excessively low thickness; excessive thickness increases the cost of the material.
Considering the slightly high cost of the silica gel material, the invention can also adopt the water-based rubber emulsion coating to form the sound absorption coating, such as the low-cost VAE emulsion (ethylene-vinyl acetate copolymer emulsion, the content of vinyl acetate in the sum of ethylene and vinyl acetate is 70-95%), polyacrylate emulsion (namely common pressure-sensitive adhesive emulsion) or the mixture of the two, after the elastomer latex is coated on the raw material board of the fiber gypsum board, nano-scale elastomer particles in the emulsion can enter the open pores of the fiber gypsum board, after the subsequent drying and moisture volatilization, a certain physical entanglement effect can be formed between the elastomer particles to form a continuous rubber film material, the rubber film material has certain sound absorption characteristic, and considering the integral strength after the hot pressing and drying of the two semi-finished coating boards, the invention preferably adopts the mixed emulsion of the two emulsions (the solid content ratio of the two emulsions is between 20: 80-80: 20) as the raw material of the coating The pressure-sensitive action of polyacrylates can increase the interfacial adhesive strength, and in addition, the many micro-interfaces between them and the VAE elastomeric polymers are also advantageous for enhancing the sound absorption, since sound absorption requires that the polymeric coating has a suitable relaxation capacity, i.e. the physical entanglement between the interior of the polymer is neither too low nor too strong.
The invention adopts hot-pressing drying after the fiber gypsum board is coated with the polymer coating and is overlapped, and the 304 stainless steel porous net is adopted as the interface during hot pressing, thereby playing the dual purposes of pressure transmission and mass transfer, and the porous net can effectively remove water vapor and other gases volatilized during hot pressing.
Examples
In order to more clearly illustrate the technical solution of the present invention, an embodiment of the present invention will be explained in detail below:
the thickness of the raw material plate of the fiber gypsum board is 12 mm, wherein the fiber reinforcing material adopts glass short fiber, the weight percentage of the glass short fiber and the gypsum is 23: 77, the high molecular coating adopts 50 parts of VAE emulsion (trade mark: BJ705, produced by Beijing organic factory, viscosity is 1500-, The composite material plate has the double functions of sound absorption; compared with the fiber gypsum board which is not coated with the polymer coating and is made of two raw materials, the sound insulation effect of the composite material board is improved by 35-50 decibels, and the fireproof capacity of the composite material board still has the A-level fireproof performance for two hours.
Claims (1)
1. A sound-absorbing fireproof board for building is characterized in that a fiber gypsum board with basic fireproof function and excellent strength performance is used as a basic supporting board B, at least one large surface of the fiber gypsum board is coated with liquid-solid two-phase silica gel to form a polymer coating C with excellent sound absorption effect, then the coating surface of a composite semi-finished product B/C of the fiber gypsum board B, one large surface of which is coated with the polymer coating C, is jointed and bonded with the coating surface of another same semi-finished product C/B and is hot-pressed together, thus forming the B/C/C/B type composite sound-absorbing fireproof board, wherein the polymer coating C can partially permeate into surface open pores of the fiber gypsum board under the capillary action of the original open pores of the fiber gypsum board and the pressing action during hot pressing, and after subsequent continuous hot-pressing drying or high-temperature crosslinking, the polymer coatings on the surfaces of the two semi-finished products can form a whole;
the basic supporting board B which plays a role in basic mechanical supporting adopts a fiber gypsum board with the thickness of 8-25mm, wherein the fiber reinforced material is chopped glass fiber, and the filling amount is 10-25%;
the liquid-solid two-phase silica gel is prepared from a mixture of a liquid silica gel material which can be crosslinked into a rubber film layer at a high temperature of 90-160 ℃ and high-viscosity dimethyl silicone oil with the viscosity of 1000-500000 mPa.S at room temperature and 25 ℃, wherein the liquid silica gel material is mainly used, the liquid silica gel accounts for 60-85% of the weight of the liquid-solid two-phase silica gel, the rest is the high-viscosity dimethyl silicone oil, and the thickness of the liquid-solid two-phase silica gel coated on one large surface of the fiber gypsum board is controlled to be 0.30-1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911161911.1A CN110863758B (en) | 2019-11-25 | 2019-11-25 | Sound-absorbing fireproof plate for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911161911.1A CN110863758B (en) | 2019-11-25 | 2019-11-25 | Sound-absorbing fireproof plate for building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110863758A CN110863758A (en) | 2020-03-06 |
| CN110863758B true CN110863758B (en) | 2021-07-02 |
Family
ID=69655356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911161911.1A Active CN110863758B (en) | 2019-11-25 | 2019-11-25 | Sound-absorbing fireproof plate for building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110863758B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9388568B2 (en) * | 2007-04-06 | 2016-07-12 | Pacific Coast Building Products, Inc. | Acoustical sound proofing material with improved fracture characteristics and methods for manufacturing same |
| CN203583698U (en) * | 2013-09-05 | 2014-05-07 | 马鞍山创宁新材料科技有限公司 | Fiber reinforced fireproof damping acoustic panel |
| CN105239358A (en) * | 2015-09-24 | 2016-01-13 | 安庆市花蕾纺织材料有限公司 | Nanometer aluminium powder/polyurethane/polypropylene elastic composite sound absorbing cotton, and preparation method thereof |
| FR3046567B1 (en) * | 2016-01-13 | 2019-07-12 | Saint-Gobain Placo | ACOUSTIC PLATE BASED ON PLASTER. |
| JP6862208B2 (en) * | 2017-02-10 | 2021-04-21 | 花王株式会社 | Affixed sheet for cooling |
| CN108661273A (en) * | 2018-06-27 | 2018-10-16 | 燕翔 | It is a kind of that sand abatvoix is covered based on plasterboard |
-
2019
- 2019-11-25 CN CN201911161911.1A patent/CN110863758B/en active Active
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| Publication number | Publication date |
|---|---|
| CN110863758A (en) | 2020-03-06 |
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