CN103787625A - Sound insulation composite wall and floor board - Google Patents
Sound insulation composite wall and floor board Download PDFInfo
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- CN103787625A CN103787625A CN201210428349.6A CN201210428349A CN103787625A CN 103787625 A CN103787625 A CN 103787625A CN 201210428349 A CN201210428349 A CN 201210428349A CN 103787625 A CN103787625 A CN 103787625A
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Abstract
A sound insulation composite a wall and floor board, including a sound insulation sheet material and a sound insulation binder for adhering the sound insulation sheet material to the wall and floor of the building. The sound insulation sheet material comprises a substrate and a glaze layer adhered on the substrate, the 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 sheet material contains a large amount of interconnected micro voids, and sound waves can penetrate deep inside the material along these pores and generates friction effect with the material, so that the acoustic energy is converted into heat energy. In addition, 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 composite wall and floor.
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 composite wall and floor.
A kind of sound insulation composite wall and floor, comprise sound insulating sheet material and described sound insulating sheet material is adhered to the sound insulation binding agent on building wall ground, described sound insulating sheet material comprises substrate and is attached to the glazed layer on described substrate, and described substrate is selected from the one in cement fibrolite plate, magnesia cement plate, bamboo and woods fiber plate, calcium silicate board with microporous, plant fiber-cement plate and shaving board;
Sound insulation caking 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.
The inside of above-mentioned sound insulating sheet material is contained a large amount of, the slight void being interconnected, and sound wave can go deep into material internal along these holes, with material generation rubbing effect, acoustic energy is converted into heat energy.In addition, sound insulation caking 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 composite wall and floor of one embodiment, comprises sound insulating sheet material and sound insulating sheet material is adhered to the sound insulation binding agent on building wall ground.Building wall ground comprises interior wall, ground and top ceiling of buildings etc.
Described sound insulating sheet material comprises substrate and is attached to the glazed layer on substrate.Described substrate is selected from the one in cement fibrolite plate, magnesia cement plate, bamboo and woods fiber plate, calcium silicate board with microporous, plant fiber-cement plate and shaving board.
Cement fibrolite plate is take siliceous, calcareous material as main raw material, adds vegetable fibre, a kind of new decorative material for building that maintenance forms through autoclave at high temperature.It generally, not containing asbestos, has good ultimate compression strength, in use also can not produce toxic gas or radiation, is a kind of environmental protection, pollution-free, fire-resistant drought-enduring material of construction.
Magnesia cement plate is take magnesium oxide and magnesium chloride as basic raw material, take medium-alkali glass fiber as enhancing, and the in addition packing material of high-quality, the A level that adopts roll extrusion, multiple compression technology to produce is not fired plate.
Bamboo wood fibre board utilizes bamboo and wood mixing raw material to make, and wherein, bamboo fibers plays enhancement, and mixes use with the xylon of different performance, produces synergistic effect.
Calcium silicate board with microporous is mainly made up of gypsum, and it is as main raw material, through slurrying, become the operations such as base, steam-cured, sanding surface and the light weight board made by siliceous material (diatomite, wilkinite, silica powder etc.), calcareous material, fortifying fibre etc.It is a kind of porous material, has good sound insulation, heat-proof quality, can attract water in air molecule, dry air time, can discharge again water molecules in the situation that of room air humidity, can suitably regulate Indoor Dry, humidity, increase comfort.
Plant fiber-cement plate is to be that main vegetable fibre does strongthener in order to agricultural crop straw, take cement as gelling material, adopt and similarly technological principle of cement sawdust plate (cement-bonded wood chipboard), a class light weight board made from certain production technique.The production technique of plant fiber-cement plate generally adopts dry method to cold pressing, and comprises mix and blend, the moulding of mating formation, cold anticyclone sizing, maintenance, cutting edge, conditioning etc.Starting material mainly comprise vegetable fibre strongthener, matrix gelling material and a small amount of modified additive, and vegetable fibre strongthener is mainly agricultural crop straw, as wheat straw, cotton stalk, hemp stalk and cornstalk etc.; Gelling material is mainly ordinary Portland cement, plays matrix in sheet material.Because some extract in vegetable fibre can affect the setting and harden effect of cement, thus in production process, must add a small amount of modified additive, to guarantee normally condensing of cement cementitious material.
Shaving board is the fragment that scrap stock, wood chip etc. in wood working process is cut into certain specification, through super-dry, mixes with tackiness agent, stiffening agent, water-resisting agent a kind of artificial board that compacting forms at a certain temperature.Finished product shaving board does not need to be again dried, and can directly use, and sound-absorbing and sound-proofing properties are good.
Glazed layer can, by the conventional glaze being coated on substrate, form after moulding, natural curing and polishing.Preferably, formed by following glaze: this glaze, comprise following component: 30 parts ~ 40 parts of mineral binder bonds, 5 parts ~ 20 parts of conditioning agents, 10 parts ~ 30 parts of high-abrasive materials, 3 parts ~ 5 parts of fortifying fibres, 0.1 part ~ 1 part of water reducer, 3 parts ~ 8 parts of stopping composition, 0.5 part ~ 2 parts of dispersion agents, 1 part ~ 5 parts of 1 part ~ 2 parts of coupling agents and mineral colors; Wherein, described conditioning agent is Al
2o
3colloidal sol, SiO
2colloidal sol, ZrO
2at least one in colloidal sol, water glass and Tai-Ace S 150; Described high-abrasive material is at least one in emergy, silicon carbide sand, quartz sand and steel sand; Described stopping composition is at least one in silica flour, talcum powder and Paris white.
There is the hole of a large amount of small connections cement fibrolite plate, magnesia cement plate, bamboo and woods fiber plate, calcium silicate board with microporous, plant fiber-cement plate and six kinds of sheet material inside of shaving board, sound wave can go deep into material internal along these holes, with material generation rubbing effect, acoustic energy is converted into heat energy.
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.
Inorganic gel is hydraulicity gelatinous material, and it can be under the effect of auxiliary agent, and by stopping composition, sound absorbent material bonds together, and forms high-intensity sound insulation caking 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 binding paste being made up of inorganic gel, cracking resistance fortifying fibre, sound absorbent material, stopping composition and multiple auxiliary agent is in the time that the substrate of sound insulating sheet material is combined, part slurry can be penetrated in substrate, infiltrate after the slurry curing of substrate, form numerous trickle " rivet ", these " rivets " can make binding material together with substrate secure bond, and between tack coat and substrate interface, form many closed pore micro-bubbles.Because the diameter of bubble is very small, be enclosed in air stop motion wherein, be almost vacuum state, thereby blocked sound wave propagation, form sound barrier layer.The good system of sound barrier layer composition sound-proofing properties of tack coat, substrate and intermediate formation, by sound source and surrounding environment isolation, and decay gradually from sound source radiation sound out, the part sound in transmission is absorbed by sound absorbent material, thereby reaches the object of isolated strike note.
By the following examples sound insulation composite wall and floor is described further.
Embodiment 1:
Embodiment 2:
Embodiment 3:
Embodiment 4:
Embodiment 5:
Embodiment 6:
Performance test:
The sound insulation binding agent 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, stirs into uniform binding agent slurry, spreads upon on the ground of buildings, then sound insulating sheet material is pressed and be arranged on binding agent slurry, after to be bonded dose of slurry curing, forms sound insulation composite wall and floor.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 70 decibels; The soundproof effect of embodiment 2 is: floor weighted standard strike note is arbitrarily downgraded 69 decibels; The soundproof effect of embodiment 3 is: floor weighted standard strike note is arbitrarily downgraded 67 decibels; The soundproof effect of embodiment 4 is: floor weighted standard strike note is arbitrarily downgraded 68 decibels; The soundproof effect of embodiment 5 is: floor weighted standard strike note is arbitrarily downgraded 66 decibels; The soundproof effect of embodiment 6 is: floor weighted standard strike note is arbitrarily downgraded 65 decibels.The soundproof effect that above-mentioned sound insulation composite wall and floor is described is thus better.
Above-mentioned test is all carried out for the floor of buildings, but is appreciated that for metope or top ceiling, and above-mentioned sound insulation composite wall and floor has good soundproof effect equally.
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 composite wall and floor, comprise sound insulating sheet material and described sound insulating sheet material is adhered to the sound insulation binding agent on building wall ground, it is characterized in that, described sound insulating sheet material comprises substrate and is attached to the glazed layer on described substrate, and described substrate is selected from the one in cement fibrolite plate, magnesia cement plate, bamboo and woods fiber plate, calcium silicate board with microporous, plant fiber-cement plate and shaving board;
Described 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.
2. sound insulation composite wall and floor according to claim 1, is characterized in that, described inorganic gel is one or more in silicate cement, gypsum, dry hydrate.
3. sound insulation composite wall and floor 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 composite wall and floor 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 composite wall and floor 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 composite wall and floor 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 composite wall and floor 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 composite wall and floor according to claim 1, is characterized in that, described active activator is one or both in calcium chloride, sodium-chlor.
9. sound insulation composite wall and floor 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 composite wall and floor according to claim 1, is characterized in that, described dispersion agent is Sodium hexametaphosphate 99.
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