CN103603472A - Lightweight effective sound insulation board - Google Patents
Lightweight effective sound insulation board Download PDFInfo
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- CN103603472A CN103603472A CN201210331668.5A CN201210331668A CN103603472A CN 103603472 A CN103603472 A CN 103603472A CN 201210331668 A CN201210331668 A CN 201210331668A CN 103603472 A CN103603472 A CN 103603472A
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- sound insulation
- elastic damping
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Abstract
The invention discloses a lightweight effective sound insulation board. The lightweight effective sound insulation board is formed by a fireproof sound insulation layer, an elastic damping layer and a sound insulation layer through compositing; the elastic damping layer is formed by elastic glue emulsion, inorganic particles, inorganic flame retardants, deionized neutral water and the right quantity of high-speed dispersing agents, thickening agents, preservatives and defoaming agents which are added. The production process of the lightweight effective sound insulation board comprises the steps of production and mixing, coating and compositing of the raw materials. According to the lightweight effective sound insulation board, the sound insulation index is large, the sound insulation frequency is wide, the low-frequency sound insulation performance is good, the requirements of the good sound insulation performance, the light weight, the small thickness and the wide applicable range are met, meanwhile the installation is convenient, the lightweight effective sound insulation board can be cut and planed, the effect is significant, the construction is convenient and rapid, the weather resistance is good, and the flame retardance is good.
Description
Technical field
The present invention relates to a kind of technical field of architectural decoration material, especially relate to a kind of efficient and light weight sound barrier that can effectively intercept airborne noise.
Background technology
Noise pollution has become the subject matter that 21st century environment pollution is controlled.How to meet people's expectation not affected by noise, have the environment of a quiet comfortable live and work, the sound-insulation capability that improves architectural exterior-protecting construction is an important aspect.The defening effect of architectural exterior-protecting construction is followed " mass law ": the sound insulation factor of wall or other building boards is directly proportional to the logarithm of its surface density (or quality of unit area), with formula, can be expressed as R
0=20log(f*ps) in-43 formulas: R
0for normal incidence sound insulation factor; Ps is surface density; F is frequency of sound wave.Mass law explanation, after the material of wall has determined, for increasing its sound insulation factor, only way is the thickness that increases wall, and thickness doubles, and mass area ratio doubles, and sound insulation factor increases 6dB; This law also shows, the sound insulation of low frequency is than the sound insulation difficulty of high frequency.But, due to building structure bearing load and the restriction that improves the conditions such as effective usable floor area, increase the thickness of soundproof course, be impossible sometimes.
From the angle of the sound insulating mechanism of material, any material all has its trough to the obstruct of sound wave spectrum, and the quality of simple substance material is large again, and the deficiency that the sound wave of certain frequency is intercepted is also restricting the raising of its sound insulation factor.As use two kinds of soundproof courses of physical property different materials above, and both can avoid obstruct trough separately, can more effectively improve the overall performance that intercepts noise.If further, soundproof course sandwich elastic damping layer at double-deck different materials, the soundproof course of double-deck different materials can be avoided the identical coincidence frequency of this two-layer appearance, middle elastic damping layer can increase the dielectric layer of sound barrier, thereby form new sound field medium, sound wave constantly passes in and out sound field medium, can produce refraction again, can make the sound insulation factor of sound barrier be further enhanced.Simultaneously, the existence of elastic damping layer, when sound wave incident, soundproof course vibrates along with sound wave frequency, elastic damping layer is along with the reciprocating motion of double-deck soundproof course, by the shearing lag return between elastic damping layer and soundproof course, be out of shape to consume the energy of sound wave, thereby suppress the vibration of sound barrier, hinder passing through of sound wave.Its sound insulation frequency is wider, to the larger raising of the barrier property of low-frequency sound wave.
Meanwhile, any constructional materials must be considered the problem of fireproof performance.The fireproof performance of the fire control law > > of the < < People's Republic of China (PRC) the 26 building unit, constructional materials and interior decoration, ornament materials must meet national standard; There is no national standard, must meet industry standard.Crowded place interior decoration, decoration, should, according to the requirement of fire prevention standard, be used incombustible or fire retardant material.< < constructional materials and goods classification system for fire performance > > GB8624-2006, the monomer combustion test > > GB/T20284-2006 of < < constructional materials or goods, < < material producing smoke toxicity risk classification > > GB/T20285-2006 and < < public place fire-retardant product and assembly combustibility require and sign > > GB/T20286-2006 has made relevant concrete regulation.
Aluminium hydroxide, magnesium hydroxide are nontoxic, the non-harmful inorganic combustion inhibitor with environmental safety and safety in utilization.Aluminium hydroxide can not only be fire-retardant as fire retardant, and can prevent from being fuming, do not produce droppings, do not produce toxic gas.Aluminium hydroxide is called for short AHT, and its fire retardant mechanism is that decomposes is emitted a large amount of steam, and its reaction equation is: 2Al (OH)
3→ Al
2o
3+ 3H
2this is a strong endothermic reaction for O, and caloric receptivity reaches 1967.2J/g, plays the effect of cooling polymer, the steam that reaction produces can dilute polymerization fuel gas, suppresses burning and spreads, and newly-generated alumina also has higher activity, can adsorb soot dust granule, play the cigarette effect that presses down.In addition, aluminium hydroxide also has resistance and drips, and promotes the process of carbonization.Magnesium hydroxide (340 ~ 490 degrees Celsius) when being heated occurs to decompose and absorbs comburant surface heat to fire retardation; Discharge the oxygen on large quantity of moisture dilution combustion thing surface simultaneously, decompose the activated magnesia generating and be attached to the carrying out that combustible surface has further stoped again burning.Magnesium hydroxide not only produces without any hazardous substances in whole fire-retardant process, and the product of its decomposition can also absorb in a large number pernicious gas and smog that the macromolecule burnings such as rubber, plastics produce in fire-retardant, activated magnesia constantly absorbs imperfect combustion fusing residue, when stopping very soon from making to burn, eliminating smog, stop molten drop, is a kind of novel environmental protection inorganic fire retardant.
Summary of the invention
In order to improve the sound-insulation capability of architectural exterior-protecting construction, reduce quality and the thickness of sound insulating structure, the invention provides a kind of efficient and light weight sound barrier, this efficient and light weight sound barrier is compound elastic damping layer in the middle of double-deck different materials, it is wide that formation has sound insulation frequency, the feature that low frequency sound insulation property is good, applied range, efficient and light weight sound barrier with low cost.
The technical solution adopted for the present invention to solve the technical problems is: a kind of efficient and light weight sound barrier is composited by the soundproof course of preventing fires, elastic damping layer and soundproof course.Elastic damping layer is connected emulsion, inorganic particle, inorganic combustion inhibitor, deionization neutral water and is added appropriate high speed dispersion agent, thickener, anticorrisive agent by elastic gum, and its preparation technology comprises the preparation of raw material and stirring, coating, compound three steps.High speed dispersion agent disperses rapidly, thoroughly for guaranteeing that inorganic combustion inhibitor, inorganic particle connect in emulsion at elastic gum, and thickener is to prevent that inorganic combustion inhibitor, inorganic particle precipitation from affecting the uniformity of elastic damping layer.The building board that described fire prevention sound insulation series of strata are made by inorganic non-combustible material, such as glass magnesium plate, calcium silicate board etc.; Glass magnesium plate, decorate calcium silicate board have environmental protection, tasteless, nontoxic, do not fire smokeless, high-strength light weight, sound-insulating, waterproof fireproofing function.The sound insulation building sheet material that described sound insulation series of strata are made by the inorganic lightweight material with sound insulation function, such as Thistle board, calcium silicate board with microporous etc.Described inorganic combustion inhibitor system by thering is filler, fire retardant, metal hydrate magnesium hydroxide, the aluminium hydroxide of the inhibitor triple functions of being fuming, granularity is more than 325 orders; Mica powder, blanc fixe that described inorganic particle system is formed by hard microsphere particle material, granularity is at 60-120 order; The size of aluminium hydroxide, magnesium hydroxide granularity also directly affects the fire resistance of fire retardant, and anti-flammability improves along with reducing of granularity, therefore aluminium hydroxide, magnesium hydroxide granularity should be as far as possible little.But granularity is less, its surface area is larger, can reduce the elasticity of elastic damping slurry, affects thus elastic damping function.The features such as it is large that inorganic particulate material has density, and intensity is large.Inorganic particulate material, in elastic damping material, when sound wave is met these particles in the air, excites the vibration of particle, sound energy consumption on the one hand.Meanwhile, sound wave will reflect, and numerous particles will make sound wave repeatedly reflect, and sound wave trajectory is increased, and acoustic energy consumption will increase, thereby improves the defening effect of elastic damping layer.So the granularity that improves inorganic particulate material contributes to reduce the elastic loss of elastic damping slurry.Described elastic gum connects emulsion system by the liquid emulsion with excellent resilience, pliability, cementability, water proofing property, weatherability, water-based glues such as acrylic acid elastic emulsion, aqueous polyurethane emulsion.
Described elastic damping is starched its preparation technology and is comprised the preparation of raw material and stirring, coating, compound three steps; First dispersing agent is mixed and adds inorganic combustion inhibitor high-speed stirred with deionization neutral water, add again inorganic particle stirring at low speed to form mixed powder, then elastic gum is connected after emulsion, thickener, anticorrisive agent, defoamer mix separately with deionization neutral water respectively and add in mixed powder and stir successively, form elastic damping slurry.Elastic damping slurry is uniformly coated between the fire prevention soundproof course back side and soundproof course, elastic damping slurry both separately as damping sound insulating material also as bonding adhesive, elastic damping slurry is uniformly coated between the fire prevention soundproof course back side and soundproof course, after elastic damping slurry solidifies, forms the efficient and light weight sound barrier of fire prevention soundproof course, elastic damping layer and soundproof course.The thickness of described fire prevention soundproof course, elastic damping layer and soundproof course is respectively 6mm～8mm, 1mm～2mm, 8mm～12mm.Fire prevention soundproof course, sound insulation series of strata are made by inorganic non-combustible material, the nonflammable material that elastic damping series of strata are processed via inorganic combustion inhibitor, do not fire the fire-protection standard that efficient and light weight sound barrier that nonflammable material is compounded to form meets by three kinds, fully meet the fire protection requirement of architectural decoration material.Meanwhile, fire prevention soundproof course, two kinds of different sound insulating materials of sound insulation series of strata, composite elastic damping layer suppresses the vibration of sound barrier, hinders passing through of sound wave.Its sound insulation factor is large, sound insulation frequency is wider, to the larger raising of the barrier property of low-frequency sound wave.
Described elastic damping slurry is as follows by weight percentage by following component: acrylic acid elastic emulsion 36%, 80 order mica powders 20%, 320 order magnesium hydroxides 32%, deionization neutral water 12% and add as required appropriate high speed dispersion agent, thickener and anticorrisive agent.
Described elastic damping slurry is as follows by weight percentage by following component: by aqueous polyurethane emulsion 40%, 100 order blanc fixes 20%, 320 order magnesium hydroxides 15%, 320 order aluminium hydroxides 15%, deionization neutral water 10% and add as required appropriate high speed dispersion agent, thickener and anticorrisive agent.
The invention has the beneficial effects as follows: meeting sound insulation property excellence, quality is light, thickness is little, applied widely in, have easy for installationly, can cut and can dig, significantly and the feature of convenient and quick construction, weatherability is good, the architectural feature of good flame resistance for effect.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is sectional structural map of the present invention.
1. fire prevention soundproof course, 2. soundproof course, 3. elastic damping layer, 4. efficient and light weight sound barriers in figure.
The specific embodiment
In the first embodiment shown in Fig. 1, described elastic damping is starched its preparation technology and is comprised the preparation of raw material and stirring, coating, compound three steps; First dispersing agent is mixed and adds inorganic combustion inhibitor high-speed stirred with deionization neutral water, add again inorganic particle stirring at low speed to form mixed powder, then elastic gum is connected after emulsion, thickener, anticorrisive agent, defoamer mix separately with deionization neutral water respectively and add in mixed powder and stir successively, form elastic damping slurry.Elastic damping slurry is uniformly coated between fire prevention soundproof course (1) back side and soundproof course (2), elastic damping slurry both separately as damping sound insulating material also as bonding adhesive, elastic damping slurry is uniformly coated between fire prevention soundproof course (1) back side and soundproof course (2), after elastic damping slurry solidifies, forms the efficient and light weight sound barrier (4) of fire prevention soundproof course (1), elastic damping layer (3) and soundproof course (2).The thickness of described fire prevention soundproof course (1), elastic damping layer (3) and soundproof course (2) is respectively 6mm～8mm, 1mm～2mm, 8mm～12mm.Described elastic damping slurry is as follows by weight percentage by following component: acrylic acid elastic emulsion 36%, 80 order mica powders 20%, 320 order magnesium hydroxides 32%, deionization neutral water 12% and add as required appropriate high speed dispersion agent, thickener and anticorrisive agent.
The second embodiment; Described elastic damping slurry is as follows by weight percentage by following component: by aqueous polyurethane emulsion 40%, 100 order blanc fixes 20%, 320 order magnesium hydroxides 15%, 320 order aluminium hydroxides 15%, deionization neutral water 10% and add as required appropriate high speed dispersion agent, thickener and anticorrisive agent.
Should be appreciated that in not departing from the scope of the present invention, can make multiple change to above-described embodiment.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. an efficient and light weight sound barrier is composited by the soundproof course of preventing fires, elastic damping layer and soundproof course, it is characterized in that: elastic damping layer is connected emulsion, inorganic particle, inorganic combustion inhibitor, deionization neutral water and added appropriate high speed dispersion agent, thickener, anticorrisive agent by elastic gum, its preparation technology comprises the preparation of raw material and stirring, coating, compound three steps.
2. efficient and light weight sound barrier according to claim 1, is characterized in that: the building board that described fire prevention sound insulation series of strata are made by inorganic non-combustible material, such as glass magnesium plate, decoration calcium silicate board etc.; The sound insulation building sheet material that described sound insulation series of strata are made by the inorganic lightweight material with sound insulation function, such as Thistle board, calcium silicate board with microporous etc.
3. efficient and light weight sound barrier according to claim 1, is characterized in that: described inorganic combustion inhibitor system is by the materials such as metal hydrate magnesium hydroxide, aluminium hydroxide with fillings, fire-retardant, the inhibition triple functions of being fuming, and granularity is more than 325 orders; Mica powder, blanc fixe that described inorganic particle system is formed by hard microsphere particle material, granularity is at 60-120 order; Described elastic gum connects emulsion system by the liquid emulsion with excellent resilience, pliability, cementability, water proofing property, weatherability, water-based glues such as acrylic acid elastic emulsion, aqueous polyurethane emulsion.
4. efficient and light weight sound barrier according to claim 1, is characterized in that: described elastic damping is starched its preparation technology and comprised the preparation of raw material and stirring, coating, compound three steps; First dispersing agent is mixed and adds inorganic combustion inhibitor high-speed stirred with deionization neutral water, add again inorganic particle stirring at low speed to form mixed powder, then elastic gum is connected after emulsion, thickener, anticorrisive agent, defoamer mix separately with deionization neutral water respectively and add in mixed powder and stir successively, form elastic damping slurry.
5. efficient and light weight sound barrier according to claim 1, it is characterized in that: described elastic damping slurry both separately as damping sound insulating material also as bonding adhesive, elastic damping slurry is uniformly coated between the fire prevention soundproof course back side and soundproof course, after solidifying, elastic damping slurry forms elastic damping layer, with fire prevention soundproof course and the compound efficient and light weight sound barrier of making of soundproof course.
6. efficient and light weight sound barrier according to claim 1, is characterized in that: the thickness of described fire prevention soundproof course, elastic damping layer and soundproof course is respectively 6mm～8mm, 1mm～2mm, 8mm～12mm.
7. efficient and light weight sound barrier according to claim 1, its feature: described elastic damping slurry is as follows by weight percentage by following component: acrylic acid elastic emulsion 36%, 80 order mica powders 20%, 320 order magnesium hydroxides 32%, deionization neutral water 12% and add as required appropriate high speed dispersion agent, thickener and anticorrisive agent.
8. efficient and light weight sound barrier according to claim 1, is characterized in that: described elastic damping slurry is as follows by weight percentage by following component: by aqueous polyurethane emulsion 40%, 100 order blanc fixes 20%, 320 order magnesium hydroxides 15%, 320 order aluminium hydroxides 15%, deionization neutral water 10% and add as required appropriate high speed dispersion agent, thickener and anticorrisive agent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210331668.5A CN103603472A (en) | 2012-09-10 | 2012-09-10 | Lightweight effective sound insulation board |
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|---|---|---|---|
| CN201210331668.5A CN103603472A (en) | 2012-09-10 | 2012-09-10 | Lightweight effective sound insulation board |
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| CN103603472A true CN103603472A (en) | 2014-02-26 |
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ID=50121727
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782482A (en) * | 2016-11-21 | 2017-05-31 | 武汉理工大学 | Compound Felt |
| CN107548407A (en) * | 2015-05-05 | 2018-01-05 | 3M创新有限公司 | Curable compositions for acoustic barrier film |
-
2012
- 2012-09-10 CN CN201210331668.5A patent/CN103603472A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107548407A (en) * | 2015-05-05 | 2018-01-05 | 3M创新有限公司 | Curable compositions for acoustic barrier film |
| US10501612B2 (en) | 2015-05-05 | 2019-12-10 | 3M Innovative Properties Company | Curable composition for sound barrier film |
| CN107548407B (en) * | 2015-05-05 | 2019-12-31 | 3M创新有限公司 | Curable composition for sound barrier films |
| CN106782482A (en) * | 2016-11-21 | 2017-05-31 | 武汉理工大学 | Compound Felt |
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Application publication date: 20140226 |