CN103787626A - Sound insulation binder - Google Patents
Sound insulation binder Download PDFInfo
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- CN103787626A CN103787626A CN201210428398.XA CN201210428398A CN103787626A CN 103787626 A CN103787626 A CN 103787626A CN 201210428398 A CN201210428398 A CN 201210428398A CN 103787626 A CN103787626 A CN 103787626A
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- sound insulation
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Abstract
A sound insulation binder includes, by mass fraction, 25-30 parts of an inorganic gel, 1-5 parts of a modifier, 0.3-0.5 part of anti-cracking reinforced fiber, 5-8 parts of a sound absorbing material, 40-60 parts of a filler, 0.3-0.6 part of a water retaining agent, 0.1-0.5 part of an activation activating agent, 0.2-0.8 part of a superplasticizer, 0.1-0.3 part of a hydrophobic powder and 0.1-0.6 part of a dispersant. The sound insulation binder contains the sound-absorbing material consisting of an unconsolidated porous material, which has gradually increased sound absorption coefficient from low frequency to high frequency, so that the sound insulation binder has good sound absorption effect on high-frequency and intermediate-frequency sound.
Description
Technical field
The present invention relates to sound-proof material, particularly relate to a kind of sound insulation binding agent.
Background technology
At present, floor great majority are made for Steel Concrete, and soundproof effect is poor.Tradition method of sound insulation is paving glass wool or felt cloth, but uses the sound insulation damping block of glass wool because glass wool is not withstand voltage, a little less than effectiveness in vibration suppression, is not accepted by market; Use the sound insulation damping block of felt cloth due to the not environmental protection of pitch wherein adding, and poisonous, and the product soundproof effect of preparation is poor, can not obtain the approval in market, is difficult to promote.Along with people's living standard improves constantly, more and more higher to the requirement of comfortable for living, certainly will high requirement be proposed to sound isolation of floor performance, to meet people live privacy, comfortableness.
A traditional damping Anti-collision materials, is mainly formed according to acoustic characteristics is refining by high density polyethylene(HDPE) foaming.Make whole floor form floating building structure by the elasticity of nanometer foam, broken off solid-borne sound transmission effect.And improved the coincidence effect on ground, upper strata, strengthen acoustic resistance drag.By the small hole of nanometer foam make people's ear sensitive frequency band acoustic energy produce cavity resonance, slacken the energy of sound, reach the object of isolated strike note.Change the frequency of sound transmission by nanometer foam cavity resonance effect, reduce order of reflection, reach the object of isolated air-borne sound.But this sound-proof material is assembled material, easily forms overhead speaker, the harder soundproof effect of material is undesirable and hollowing sound is larger.
Summary of the invention
Based on this, be necessary to provide a kind of soundproof effect good sound insulation binding agent.
A kind of sound insulation binding agent, according to mass fraction, comprising:
Inorganic gel 25 ~ 30;
Properties-correcting agent 1 ~ 5;
Cracking resistance fortifying fibre 0.3 ~ 0.5;
Sound absorbent material 5 ~ 8;
Stopping composition 40 ~ 60;
Water-holding agent 0.3 ~ 0.6;
Active activator 0.1 ~ 0.5;
Water reducer 0.2 ~ 0.8;
Hydrophobic powder 0.1 ~ 0.3; And
Dispersion agent 0.1 ~ 0.6.
In an embodiment, described inorganic gel is one or more in silicate cement, gypsum, dry hydrate therein.
In an embodiment, described properties-correcting agent is one or more in polyvinyl acetate (PVA) homopolymerization rubber powder, polyvinyl alcohol rubber powder, urea formaldehyde resin adhesive powder, acrylic resin rubber powder, ethylene-vinyl acetate copolymerization rubber powder, butadiene-styrene fluoropolymer resin rubber powder, styrene-butadiene rubber(SBR) dispersible polymer powder therein.
In an embodiment, described cracking resistance fortifying fibre is one or more in carbon fiber, polypropylene fiber, ceramic fiber, alkali resistant glass fiber, polyethylene fibre, polypropylene fibre, polyvinyl alcohol fiber, thermovyl, polyacrylonitrile fibre, sepiolite fibre, polyester tubular fibre therein.
Therein in an embodiment, described sound absorbent material is pearlstone, glass bead, float one or more in pearl, cenosphere, granular polystyrene.
In an embodiment, described stopping composition is one or more in rock dust, quartz sand, silicon ash, flyash therein.
In an embodiment, described water-holding agent is one or more in hydroxypropyl methyl cellulose ether, TYLOSE 30000, hydroxyethyl ether cellulose therein.
In an embodiment, described active activator is one or both in calcium chloride, sodium-chlor therein.
In an embodiment, described water reducer is one or more in calcium lignin sulphonate, sodium lignosulfonate, naphthalene series high-efficiency water-reducing agent therein.
In an embodiment, described dispersion agent is Sodium hexametaphosphate 99 therein.
Above-mentioned sound insulation binding agent contains the sound-absorbing material being made up of loose porous material, and its sound absorption coefficient generally increases gradually from low frequency to high frequency, therefore better to the acoustic absorption effect of high frequency and intermediate frequency.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below the specific embodiment of the present invention is described in detail.A lot of details are set forth in the following description so that fully understand the present invention.But the present invention can implement to be much different from alternate manner described here, and those skilled in the art can do similar improvement without prejudice to intension of the present invention in the situation that, and therefore the present invention is not subject to the restriction of following public concrete enforcement.
The sound insulation binding agent of one embodiment, according to mass fraction, comprising:
Inorganic gel 25 ~ 30;
Properties-correcting agent 1 ~ 5;
Cracking resistance fortifying fibre 0.3 ~ 0.5;
Sound absorbent material 5 ~ 8;
Stopping composition 40 ~ 60;
Water-holding agent 0.3 ~ 0.6;
Active activator 0.1 ~ 0.5;
Water reducer 0.2 ~ 0.8;
Hydrophobic powder 0.1 ~ 0.3; And
Dispersion agent 0.1 ~ 0.6.
Inorganic gel is hydraulicity gelatinous material, and it can be under the effect of auxiliary agent, and by stopping composition, sound absorbent material is bonded together, and forms high-intensity sound insulation binding agent.Inorganic gel is preferably one or more in silicate cement, gypsum, dry hydrate.
Properties-correcting agent can increase suppleness, the caking ability of inorganic gel.Properties-correcting agent is preferably one or more in polyvinyl acetate (PVA) homopolymerization rubber powder, polyvinyl alcohol rubber powder, urea formaldehyde resin adhesive powder, acrylic resin rubber powder, ethylene-vinyl acetate copolymerization rubber powder (VAE latex powder), butadiene-styrene fluoropolymer resin rubber powder, styrene-butadiene rubber(SBR) dispersible polymer powder.
Cracking resistance fortifying fibre after surface treatment exists a large amount of active groups, can form chemical bond with polymer reaction in inorganic gel, and cohesive strength and cohesive strength are increased.Meanwhile, fiber also plays skeleton function, makes system strengthen as the reinforcing bar in Steel Concrete, can effectively transmit stress, stops crackle diffusion, thereby plays good cracking resistance effect.Cracking resistance fortifying fibre is preferably one or more in carbon fiber, polypropylene fiber, ceramic fiber, alkali resistant glass fiber, polyethylene fibre, polypropylene fibre, polyvinyl alcohol fiber, thermovyl, polyacrylonitrile fibre, sepiolite fibre, polyester tubular fibre.
Sound-absorbing material is mostly loose porous material, its sound absorbing mechanism is the hole that sound wave gos deep into material, and hole mostly is the open pore that internal mutual connects, and is subject to air molecule friction and viscous resistance, and make fiber fines do mechanical vibration, thereby make acoustic energy change heat energy into.The sound absorption coefficient of this class porous sound-absorbing material generally increases gradually from low frequency to high frequency, therefore better to the acoustic absorption effect of high frequency and intermediate frequency.Sound absorbent material is preferably pearlstone, glass bead, floats pearl, one or more in cenosphere, granular polystyrene.
Stopping composition is one of important auxiliary agent of inorganic gel, has the effect of reinforcement, Hardening.May there is physical bond or Chemical bond in the macromole in weighting agent and inorganic gel.Physical bond is that both affinities are good by secondary valence bond power, and bonding force is large.Chemical bond is the filler of processing through certain method, and active group has been introduced on surface, can form chemical bond with macromole, produces a small amount of crosslinking structure, thereby plays good strengthening action.Stopping composition is preferably one or more in rock dust, quartz sand, silicon ash, flyash.
Water-holding agent is the functional high molecule material that a kind of water-retaining capacity is strong especially, and great majority are to be made up through chemical reaction through the synthetic superpolymer of polyreaction or macromolecular compound of lower-molecular substance.Water sucting principle is: polymer electrolyte molecular chain amide group and/or carboxyl group two like magnetic poles repel each other in water makes molecular chain expansionary force and forms because the expansionary force of the restriction molecule chain of cross-linking set interacts.Its molecular structure is crosslinked, and molecular network absorbs water and point can not extrude with general physical method, and therefore, water absorbing properties is good.Thereby the caking ability of inorganic gel is increased, and bond securely with various stopping composition.Water-holding agent is preferably one or more in hydroxypropyl methyl cellulose ether, TYLOSE 30000, hydroxyethyl ether cellulose.
Active activator is a kind of active substance that can excite industrial residue the inside, allows it that recombiner of chemical reaction occurs.A large amount of SiO is contained in the industrial residue the insides such as flyash, silicon ash
2and Al
2o
3these active substances, but they are with the existence of " vitreum " inert condition, by the chemical process exciting, allow it that chemical reaction occurs, produce cohesiveness, can greatly reduce inorganic gel consumption and improve its utilization ratio, and can accelerate inorganic gel setting rate, improve its early strength.Active activator is preferably one or both in calcium chloride, sodium-chlor (Industrial Salt).
The molecular energy oriented adsorption of water reducer is in cement particle surface, make inorganic gel particle surface with same electric charge, form electrostatic repulsion, impel inorganic gel particle mutually to disperse, flucculation structure is destroyed, discharge and be wrapped part water, participate in flowing, thereby effectively increase the mobility of high strength sound binding agent, it is good that the slump of binding agent slurry keeps, reach the effect of diminishing, and then improved the intensity of tack coat.Because the hydrophilic group polarity in water reducer is very strong, therefore the water reducer adsorption film of inorganic gel particle surface can form the stable solvation moisture film of one deck with water molecules, this layer of moisture film has good lubrication, can effectively reduce the intergranular sliding resistance of inorganic gel, thereby the mobility of high strength sound binding material slurry is further improved.Water reducer can be at adsorbed inorganic gel particle surface, is formed with the three-dimensional adsorption layer of certain thickness wetting ability.When inorganic gel particle near time, adsorption layer starts overlapping, between inorganic gel particle, produces sterically hindered effect, overlapping more, sterically hindered repulsion is larger, also larger to the obstruction of inorganic gel interparticle coagulation effect, makes the slump of high strength sound binding material slurry keep good.Water reducer is preferably one or more in calcium lignin sulphonate, sodium lignosulfonate, naphthalene series high-efficiency water-reducing agent.
Hydrophobic powder can strengthen intensity and the water resistance of system.Hydrophobic powder is preferably the organic silicon water-proofing powder that Chengdu clear spring waterproofing agent of organosilicon factory produces.
Dispersion agent can have the interfacial agent of lipophilicity and two kinds of opposite nature of wetting ability in molecule simultaneously.Dispersion agent can impel each component of high strength sound binding agent to be uniformly distributed at slurry, and prevents solid particles sediment and the cohesion in slurry.Dispersion agent is preferably Sodium hexametaphosphate 99.
The sound insulation principle of sound insulation binding material: formed sound insulation binding material by inorganic gel, stopping composition, sound absorbent material, cracking resistance fortifying fibre and various auxiliary agent, added suitable quantity of water mix even, obtained sound insulation binding paste.Wherein cracking resistance fortifying fibre is woven into one " net " in system, the skeleton of constitution system, stopping composition and sound absorbent material are filled in equably in " net " under the effect of dispersion agent, inorganic gel is bonded together cracking resistance fortifying fibre and stopping composition, sound absorbent material securely, and can form small sealing microbubble in system.Sound wave is in communication process, and easy endergonic sound absorbent material and cracking resistance fortifying fibre have consumed the energy of sound wave; The minimum gas blocking in the microbubble of sealing, almost approaches vacuum, also the transmission of acoustic wave segment capable of blocking.The moisture that the auxiliary agent such as water reducer, hydrophobic powder can be controlled well in system effectively, has reduced the amount of water medium, acoustic wave propagation velocity is slowed down, thereby increased the power consumption time of other approach.Number of ways comprehensive, makes sound insulation binding material have good sound-proofing properties.
By the following examples sound insulation binding agent is described further.
Embodiment 1:
Embodiment 2:
Embodiment 3:
Embodiment 4:
Embodiment 5:
Embodiment 6:
Performance test:
The powder of embodiment 1 ~ 6 is mixed successively, after mechanical stirring is even, obtain finished product.When use, appropriate water is mixed in dry mixing material, and the slurry stirring is for construction.Use the standard of GB/T 19889.7-2005 " acoustics building and building slab sound insulation measurement the 7th part: the field measurement of floor crashing sound insulation " to test six embodiment, test result is as follows:
The soundproof effect of embodiment 1 is: floor weighted standard strike note is arbitrarily downgraded 74 decibels; The soundproof effect of embodiment 2 is: floor weighted standard strike note is arbitrarily downgraded 73 decibels; The soundproof effect of embodiment 3 is: floor weighted standard strike note is arbitrarily downgraded 70 decibels; The soundproof effect of embodiment 4 is: floor weighted standard strike note is arbitrarily downgraded 71 decibels; The soundproof effect of embodiment 5 is: floor weighted standard strike note is arbitrarily downgraded 69 decibels; The soundproof effect of embodiment 6 is: floor weighted standard strike note is arbitrarily downgraded 68 decibels.The soundproof effect that above-mentioned sound insulation binding agent is described is thus better.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a sound insulation binding agent, is characterized in that, according to mass fraction, comprising:
Inorganic gel 25 ~ 30;
Properties-correcting agent 1 ~ 5;
Cracking resistance fortifying fibre 0.3 ~ 0.5;
Sound absorbent material 5 ~ 8;
Stopping composition 40 ~ 60;
Water-holding agent 0.3 ~ 0.6;
Active activator 0.1 ~ 0.5;
Water reducer 0.2 ~ 0.8;
Hydrophobic powder 0.1 ~ 0.3; And
Dispersion agent 0.1 ~ 0.6.
2. sound insulation binding agent according to claim 1, is characterized in that, described inorganic gel is one or more in silicate cement, gypsum, dry hydrate.
3. sound insulation binding agent according to claim 1, it is characterized in that, described properties-correcting agent is one or more in polyvinyl acetate (PVA) homopolymerization rubber powder, polyvinyl alcohol rubber powder, urea formaldehyde resin adhesive powder, acrylic resin rubber powder, ethylene-vinyl acetate copolymerization rubber powder, butadiene-styrene fluoropolymer resin rubber powder, styrene-butadiene rubber(SBR) dispersible polymer powder.
4. sound insulation binding agent according to claim 1, it is characterized in that, described cracking resistance fortifying fibre is one or more in carbon fiber, polypropylene fiber, ceramic fiber, alkali resistant glass fiber, polyethylene fibre, polypropylene fibre, polyvinyl alcohol fiber, thermovyl, polyacrylonitrile fibre, sepiolite fibre, polyester tubular fibre.
5. sound insulation binding agent according to claim 1, is characterized in that, described sound absorbent material is pearlstone, glass bead, float one or more in pearl, cenosphere, granular polystyrene.
6. sound insulation binding agent according to claim 1, is characterized in that, described stopping composition is one or more in rock dust, quartz sand, silicon ash, flyash.
7. sound insulation binding agent according to claim 1, is characterized in that, described water-holding agent is one or more in hydroxypropyl methyl cellulose ether, TYLOSE 30000, hydroxyethyl ether cellulose.
8. sound insulation binding agent according to claim 1, is characterized in that, described active activator is one or both in calcium chloride, sodium-chlor.
9. sound insulation binding agent according to claim 1, is characterized in that, described water reducer is one or more in calcium lignin sulphonate, sodium lignosulfonate, naphthalene series high-efficiency water-reducing agent.
10. sound insulation binding agent according to claim 1, is characterized in that, described dispersion agent is Sodium hexametaphosphate 99.
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| CN201210428398.XA CN103787626B (en) | 2012-10-31 | 2012-10-31 | Sound insulation binding agent |
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| CN201210428398.XA CN103787626B (en) | 2012-10-31 | 2012-10-31 | Sound insulation binding agent |
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| CN103787626A true CN103787626A (en) | 2014-05-14 |
| CN103787626B CN103787626B (en) | 2017-05-31 |
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| CN104151960A (en) * | 2014-07-29 | 2014-11-19 | 南京师范大学 | High-thixotropy modified white glue containing glass fiber micropowder |
| CN105040874A (en) * | 2015-08-07 | 2015-11-11 | 广东省建筑科学研究院集团股份有限公司 | Whole sound insulation floor and construction method thereof |
| CN105036683A (en) * | 2015-08-07 | 2015-11-11 | 广东省建筑科学研究院集团股份有限公司 | Gypsum-based sound insulation leveling adhesion material for monolithic sound insulation floor slab and preparation method thereof |
| CN106186857A (en) * | 2016-07-01 | 2016-12-07 | 卓达新材料科技集团威海股份有限公司 | A kind of soundproof construction composition |
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| KR100272624B1 (en) * | 1998-05-15 | 2000-12-01 | 손연호 | Fireproofing and sound-absorbing composition |
| CN100348533C (en) * | 2005-07-14 | 2007-11-14 | 重庆大学 | Heat insulation and sound insulation material for flour and its preparing method |
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| CN101244920B (en) * | 2008-03-25 | 2010-09-22 | 东南大学 | Concrete base sound absorption material for road sound screen and method of manufacturing the same |
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| CN104151960A (en) * | 2014-07-29 | 2014-11-19 | 南京师范大学 | High-thixotropy modified white glue containing glass fiber micropowder |
| CN105040874A (en) * | 2015-08-07 | 2015-11-11 | 广东省建筑科学研究院集团股份有限公司 | Whole sound insulation floor and construction method thereof |
| CN105036683A (en) * | 2015-08-07 | 2015-11-11 | 广东省建筑科学研究院集团股份有限公司 | Gypsum-based sound insulation leveling adhesion material for monolithic sound insulation floor slab and preparation method thereof |
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