CN108678315A - It is a kind of that sand abatvoix is covered based on building block brick - Google Patents
It is a kind of that sand abatvoix is covered based on building block brick Download PDFInfo
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- CN108678315A CN108678315A CN201810682546.8A CN201810682546A CN108678315A CN 108678315 A CN108678315 A CN 108678315A CN 201810682546 A CN201810682546 A CN 201810682546A CN 108678315 A CN108678315 A CN 108678315A
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- building block
- block brick
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- sand
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0875—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
- E04F2290/041—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
- E04F2290/045—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against fire
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
The present invention relates to sound absorption Material Fields, covering sand abatvoix based on building block brick in particular to a kind of；The sand abatvoix that covers based on building block brick includes the sound-absorbing coating, grid cloth and building block brick substrate arranged successively；The ingredient of the sound-absorbing coating includes filler and inorganic binder；The filler includes silica sand and resin particle.The material has very outstanding sound insulating and absorbing ability.
Description
Technical field
The present invention relates to sound absorption Material Fields, covering sand abatvoix based on building block brick in particular to a kind of.
Background technology
Sound-absorbing material is a kind of functional material of construction and decoration, it has the double requirements of sound absorption and decoration, Ji Yaomei
See the particular/special requirement for realizing sound absorption again.And common sound-absorbing material cannot achieve the seamless dress of large area on domestic market
Decorations, sound absorption characteristics can not customize the disadvantages such as regulation and control, environmental-protecting performance be poor, and part sound-absorbing material flame retardant property is relatively low.
In view of this, special propose the present invention.
Invention content
The purpose of the present invention is to provide a kind of to cover sand abatvoix based on building block brick, including the sound-absorbing arranged successively applies
Layer, grid cloth and building block brick substrate；
The ingredient of the sound-absorbing coating includes filler and inorganic binder；
The filler includes silica sand and resin particle.
Such building block brick covers the research and development of sand acoustic board, can be directly applied to metope, has the double effects of sound absorption and sound insulation,
Applicability is wider, while promoting sound insulation of wall, and can realize the seamless decorated style of large area.
Compared with prior art, beneficial effects of the present invention are：
(1) sound-absorbing coating sound-absorbing effect is good, also has good flame retardant effect；Resin particle is ensureing the same of sound absorption qualities
When, moreover it is possible to effectively further promote the sound absorption qualities of centering low frequency noise；
(2) grid cloth can reinforce the bonding strength of sound-absorbing coating and building block brick substrate；
(3) building block brick substrate sound absorption qualities are good, keep the temperature adiabatic, corrosion-resistant, stable chemical performance.
(4) utilize building block brick masonry at wall, itself has higher oise insulation factor, and not only sound absorbing performance is excellent for this product,
It can take into account and promote sound insulation property 15dB or more, be a kind of architectural acoustics material for not only having absorbed sound but also having insulated against sound.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram for covering sand abatvoix based on building block brick that one embodiment of the invention is prepared.
Reference numeral：
1- sound-absorbing coatings；2- grid cloths；3- building block brick substrates.
Specific implementation mode
The present invention relates to a kind of to cover sand abatvoix based on building block brick, including arrange successively sound-absorbing coating, grid cloth and
Building block brick substrate；
The ingredient of the sound-absorbing coating includes filler and inorganic binder；
The filler includes silica sand and resin particle.
Preferably, the building block brick is sound-absorbing building block.
Preferably, the weight for covering sand abatvoix, the silica sand and the resin particle based on building block brick as described above
Amount is than being 1：(0.8~1.4)；
It is furthermore preferred that the weight ratio of the silica sand and the resin particle is 1：(1~1.2)；
Preferably, the grain size of the silica sand is 45~130 mesh；More preferably 60~110 mesh；
Preferably, the grain size of the resin particle is 10~30 mesh；More preferably 20 mesh.
Preferably, sand abatvoix, the filler and the inorganic binder are covered based on building block brick as described above
Mass ratio is 70:10~20 (being calculated by water is not added with)；
It is furthermore preferred that the mass ratio of the filler and the inorganic binder is 70:15.
Preferably, sand abatvoix is covered based on building block brick as described above, the inorganic binder is viscous for silicate inorganic
Tie agent；
Preferably, in parts by weight, the silicate inorganic binder includes：7~13 parts of sodium metasilicate, magnesium silicate 1~5
Part, 1~3 part of lithium metasilicate；Further include more preferably 12~18 parts of water；
It is furthermore preferred that in parts by weight, the silicate inorganic binder includes：9~11 parts of sodium metasilicate, magnesium silicate 2~4
Part, 1~3 part of lithium metasilicate；Further include more preferably 14~16 parts of water；
It is furthermore preferred that in parts by weight, the silicate inorganic binder includes：10 parts of sodium metasilicate, 3 parts of magnesium silicate, silicon
2 parts of sour lithium；Further include more preferably 15 parts of water.
Preferably, sand abatvoix is covered based on building block brick as described above, the preparation method of the resin particle includes：
The fiber for being mixed with calcium carbonate is added into resin before resin solidification, in acid condition by institute after resin solidification
State Decomposition of Calcium Carbonate；
Wherein, the fiber for being mixed with calcium carbonate is added preferably in the form of open weave object, before resin solidification uniformly
It is immersed in resin, can tighten to form fixed interval between the open weave object of different layers, be just mixed in the resin after solidification
The fiber of calcium carbonate；Before the Decomposition of Calcium Carbonate is decomposed in acid condition, can resin be first ground into set small
Grain (or granulation), acid solution can be penetrated by the fibrous material of resin surface inside resin, and by dissolution of calcium carbonate, react generation
CO2It can be discharged along fiber hole, to form the duct of connection inside resin；The resin particle hole being prepared by this law
Gap rate is up to 50% or so；
It is further preferred that in pickling, to promote acid to penetrate into the CO that inside resin and reaction generates2Discharge, can
Continue stir process.
By this manufacture craft, sand grains grain size can accurately regulate and control with molding mode, and then internal void is determined
Thus size and arrangement mode produce the sound-absorbing coating of various different flow resistances and sound absorption characteristics.It is of the present invention porous
Resin, sound-absorbing effect is more preferable, can effectively promote sound absorbing power.
Preferably, the additive amount of the fiber for being mixed with calcium carbonate account for solidification after resin volume 30%~40%；It is more excellent
It is selected as 35%；
Preferably, a diameter of 0.1mm~0.2mm of the fiber；
Preferably, the fiber interweaving arrangement is added in resin before curing；
Preferably, pH=4~6 of the acid condition；It is furthermore preferred that acidolysis temperature is 110~120 DEG C, the acidolysis time
For for 24 hours~48h.
Preferably, sand abatvoix is covered based on building block brick as described above, it is described to be mixed with calcium carbonate in the fiber of calcium carbonate
Additive amount be 20wt%~40wt%；More preferably 30wt%.
Preferably, the preparation method of the fiber for being mixed with calcium carbonate includes：
The calcium carbonate is mixed with the raw material of the fiber, 2.2~3.0 × 10-3It is vacuumized under Pa, in non-oxide gas
Under atmosphere protection, mixing spinning after mixing is melted at 179 DEG C~200 DEG C.
Preferably, sand abatvoix is covered based on building block brick as described above, added also into the resin before resin solidification
Enter fire retardant；
Preferably, the fire retardant is DOPO；
Preferably, the additive amount of the fire retardant is the 6%~15% of the resin quality；More preferably 8%~13%.
Preferably, sand abatvoix is covered based on building block brick as described above, the fiber is easily to decompose fiber, preferably poly-
Acid fiber.
Acid fiber by polylactic is since density is low, fiber fluffy, is easy a large amount of calcium carbonate of incorporation, and it easily divides in acid condition
Solution is easy to remove from resin.
Preferably, sand abatvoix is covered based on building block brick as described above, the resin particle is acidproof heat-proof asphalt mixtures modified by epoxy resin
Fat particle.
The epoxy resin of photocuring, such as epoxy resin CER-170 can be used.
Epoxy resin has many advantages, such as at low cost, light weight.
Preferably, sand abatvoix is covered based on building block brick as described above, the sound-absorbing coating is divided into silica sand filler layer
With resin particle filler layer, and the resin particle filler layer is adjacent with the grid cloth；
Preferably, the sound-absorbing coating surface further includes architectural surface.
The building block brick of technique productions covers sand acoustic board intensity height, prevents fires, is moisture-proof, freeze proof, ageing-resistant through the invention, and
Building block brick covers sand plate also without any organic volatile in technique, is Green environmental-protection building sound-absorbing material.Color is various, seamless company
It connects, beautiful design, can be widely applied to the various metopes that there is sound absorption to require or smallpox.
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person carries out according to conventional conditions or manufacturer's recommended conditions.Reagents or instruments used without specified manufacturer is
It can be with conventional products that are commercially available.
Embodiment 1
A kind of preparation method for covering sand abatvoix based on building block brick of the present embodiment, including：
A. the preparation of inorganic binder：By 1 part of 7 parts of (parts by weight meter) sodium metasilicate, 5 parts of magnesium silicate, lithium metasilicate addition water 12
Part, obtain waterglass；
B. prepared by resin particle：
By calcium carbonate fiber/20 parts of nano particle, 80 parts of polylactic acid is added the screw rod with required compound width spout and squeezes
In press, 2.66 × 10-3It is vacuumized under Pa, melting mixing under nitrogen protection, at 179 DEG C~200 DEG C is uniformly mixed, passes through
Spinneret spins to it with the speed of about 0.5m/min and is cooled to about 20 DEG C of temperature.A diameter of 0.1mm of fiber
~0.2mm.By the fibrous woven obtained for being mixed with calcium carbonate at latticed, points 2 layers uniformly as in mold, (additive amount accounts for solidification
The 30% of resin volume afterwards), it is (mixed with function monomer, oligomer in advance that epoxy resin CER-170 is slowly imported into the mold
Close), preceding and DOPO fire retardants mixing (fire retardant additive amount accounts for the 6% of weight resin) is added in epoxy resin, just and has not been mixed with
The fiber of calcium carbonate, then enters light source region by the speed resinized with 4m/min, and hardening time 10s adds up radiation
400mj/cm2。
It crushes after solidification, is granulated using resin granulator, size controlling is in 10~30 mesh.
Resin particle obtained is soaked in the hydrochloric acid of pH=4 for 24 hours, stirring oscillation when immersion；
Pickling is gone after immersion, dries to obtain resin particle.
C. the substrate sound-absorbing building block that will smear arrange it is smooth after, one layer of grid cloth is covered, then in surface smear sound-absorbing
Coating.Sound-absorbing coating need to smear three layers under normal circumstances：First layer smearing is to fill up the hole of substrate surface, the second layer
Smearing be substrate is carried out it is levelling；First and second layer of thickness is 2.5mm；Third layer smears architectural surface.After each layer of smearing
It need to carry out naturally dry.Sound-absorbing coating can use the natural fine sand of different colours, different chilterns to be mixed with resin particle as raw material
It is modulated, decoration is made to achieve the purpose that i.e. beautiful sound absorption again.
The grain size of fine sand is 45~130 mesh, and the grain size of resin particle is 10~30 mesh；The weight ratio of fine sand and resin particle
It is 1：Filler is pressed after 0.8 mixing：Waterglass siccative=70:10 weight ratio, which is added in waterglass, is made filler slurry, carries out
Above-mentioned smearing, is drying to obtain.
Embodiment 2
A kind of preparation method for covering sand abatvoix based on building block brick of the present embodiment, including：
A. the preparation of inorganic binder：By 3 parts of 13 parts of (parts by weight meter) sodium metasilicate, 1 part of magnesium silicate, lithium metasilicate addition water 18
Part, obtain waterglass；
B. prepared by resin particle：
By calcium carbonate fiber/40 parts of nano particle, 60 parts of polylactic acid is added the screw rod with required compound width spout and squeezes
In press, 2.66 × 10-3It is vacuumized under Pa, melting mixing under nitrogen protection, at 179 DEG C~200 DEG C is uniformly mixed, passes through
Spinneret spins to it with the speed of about 0.5m/min and is cooled to about 20 DEG C of temperature.A diameter of 0.1mm of fiber
~0.2mm.By the fibrous woven obtained for being mixed with calcium carbonate at latticed, points 3 layers uniformly as in mold, (additive amount accounts for solidification
The 40% of resin volume afterwards), it is (mixed with function monomer, oligomer in advance that epoxy resin CER-170 is slowly imported into the mold
Close), preceding and DOPO fire retardants mixing (fire retardant additive amount accounts for the 15% of weight resin) is added in epoxy resin, just and has not been mixed with
The fiber of calcium carbonate, then enters light source region by the speed resinized with 6m/min, and hardening time 6s adds up radiation
900mj/cm2。
It crushes after solidification, is granulated using resin granulator, size controlling is in 10~30 mesh.
Resin particle obtained is soaked in the hydrochloric acid of pH=6,110~120 DEG C of reaction 48h, stirring oscillation when immersion；
Pickling is gone after immersion, dries to obtain resin particle.
C. the substrate sound-absorbing building block that will smear arrange it is smooth after, one layer of grid cloth is covered, then in surface smear sound-absorbing
Coating.Sound-absorbing coating need to smear three layers：First layer smearing is to fill up the hole of substrate surface, and second layer smearing is by base
Plate carries out levelling；First and second layer of thickness is 4mm；Third layer smears architectural surface.Progress nature is both needed to after each layer of smearing to dry in the air
It is dry.Sound-absorbing coating can use different colours, the natural fine sand of different chilterns is mixed as raw material with resin particle and is modulated, and make dress
Decorations achieve the purpose that i.e. beautiful sound absorption again.
The grain size of fine sand is 45~130 mesh, and the grain size of resin particle is 10~30 mesh；The weight ratio of fine sand and resin particle
It is 1：Filler is pressed after 1.4 mixing：Waterglass siccative=70:20 weight ratio, which is added in waterglass, is made filler slurry, carries out
Above-mentioned smearing, is drying to obtain.
Embodiment 3
A kind of preparation method for covering sand abatvoix based on building block brick of the present embodiment, including：
A. the preparation of inorganic binder：By 2 parts of 12 parts of (parts by weight meter) sodium metasilicate, 4 parts of magnesium silicate, lithium metasilicate addition water 14
Part, obtain waterglass；
B. prepared by resin particle：
By calcium carbonate fiber/25 parts of nano particle, 75 parts of polylactic acid is added the screw rod with required compound width spout and squeezes
In press, 2.66 × 10-3It is vacuumized under Pa, melting mixing under nitrogen protection, at 179 DEG C~200 DEG C is uniformly mixed, passes through
Spinneret spins to it with the speed of about 0.4m/min and is cooled to about 20 DEG C of temperature.A diameter of 0.1mm of fiber
~0.2mm.By the fibrous woven obtained for being mixed with calcium carbonate at latticed, points 3 layers uniformly as in mold, (additive amount accounts for solidification
The 32% of resin volume afterwards), it is (mixed with function monomer, oligomer in advance that epoxy resin CER-170 is slowly imported into the mold
Close), preceding and DOPO fire retardants mixing (fire retardant additive amount accounts for the 12% of weight resin) is added in epoxy resin, just and has not been mixed with
The fiber of calcium carbonate, then enters light source region by the speed resinized with 4m/min, and hardening time 80s adds up radiation
700mj/cm2。
It crushes after solidification, is granulated using resin granulator, size controlling is in 10~30 mesh.
Resin particle obtained is soaked in the hydrochloric acid of pH=4,110~120 DEG C of reaction 30h, stirring oscillation when immersion；
Pickling is gone after immersion, dries to obtain resin particle.
C. the substrate sound-absorbing building block that will smear arrange it is smooth after, one layer of grid cloth is covered, then in surface smear sound-absorbing
Coating.Sound-absorbing coating need to smear three layers：First layer smears fine sand layer, is to fill up the hole of substrate surface, and the second layer applies
Smear resin particle layer, be substrate is carried out it is levelling；First and second layer of thickness is 2mm；Third layer spraying and decorating face layer.Each layer
It is both needed to carry out naturally dry after smearing.Fine sand layer can use the natural fine sand of different colours, different chilterns to mix work with resin particle
It is modulated for raw material, decoration is made to achieve the purpose that i.e. beautiful sound absorption again.
The grain size of fine sand is 45~130 mesh, and the grain size of resin particle is 10~30 mesh；The weight ratio of fine sand and resin particle
It is 1：1, by filler：Waterglass siccative=70:Fine sand and resin particle are added in waterglass respectively by 13 weight ratio respectively
Filler slurry is made, carries out above-mentioned smearing, is drying to obtain.
Embodiment 4
A kind of preparation method for covering sand abatvoix based on building block brick of the present embodiment, including：
A. the preparation of inorganic binder：By 2 parts of 10 parts of (parts by weight meter) sodium metasilicate, 3 parts of magnesium silicate, lithium metasilicate addition water 15
Part, obtain waterglass；
B. prepared by resin particle：
By calcium carbonate fiber/30 parts of nano particle, 70 parts of polylactic acid is added the screw rod with required compound width spout and squeezes
In press, 2.66 × 10-3It is vacuumized under Pa, melting mixing under nitrogen protection, at 179 DEG C~200 DEG C is uniformly mixed, passes through
Spinneret spins to it with the speed of about 0.5m/min and is cooled to about 20 DEG C of temperature.A diameter of 0.1mm of fiber
~0.2mm.By the fibrous woven obtained for being mixed with calcium carbonate at latticed, points 3 layers uniformly as in mold, (additive amount accounts for solidification
The 35% of resin volume afterwards), it is (mixed with function monomer, oligomer in advance that epoxy resin CER-170 is slowly imported into the mold
Close), preceding and DOPO fire retardants mixing (fire retardant additive amount accounts for the 14% of weight resin) is added in epoxy resin, just and has not been mixed with
The fiber of calcium carbonate, then enters light source region by the speed resinized with 5m/min, and hardening time 8s adds up radiation
600mj/cm2。
It crushes after solidification, is granulated using resin granulator, size controlling is in 10~30 mesh.
Resin particle obtained is soaked in the hydrochloric acid of pH=5,110~120 DEG C of reaction 36h, stirring oscillation when immersion；
Pickling is gone after immersion, dries to obtain resin particle.
C. the substrate sound-absorbing building block that will smear arrange it is smooth after, one layer of grid cloth is covered, then in surface smear sound-absorbing
Coating.Sound-absorbing coating need to smear three layers：First layer resin particle layer is to fill up the hole of substrate surface, and the second layer applies
Smear fine sand layer, be substrate is carried out it is levelling；First and second layer of thickness is 4mm；Third layer smears architectural surface.Each layer of smearing
After be both needed to carry out naturally dry.Fine sand layer can use the natural fine sand of different colours, different chilterns to be mixed with resin particle as original
Material is modulated, and decoration is made to achieve the purpose that i.e. beautiful sound absorption again.
The grain size of fine sand is 45~130 mesh, and the grain size of resin particle is 10~30 mesh；The weight ratio of fine sand and resin particle
It is 1：1.4, by filler：Waterglass siccative=70:Fine sand and resin particle are added in waterglass respectively by 15 weight ratio respectively
From extender paste material is made, above-mentioned smearing is carried out, is drying to obtain.
Comparative example
It is same as Example 4, it differs only in, does not add the fiber for being mixed with calcium carbonate, but still through peracid treatment, and will
It is granulated after epoxy resin CER-170 directly solidifications.
Compare for convenience, the thickness of building block brick is that 50mm (ensures that sound reduction index is more than in above-described embodiment and comparative example
35dB), every cubic metre of weight is less than 350 kilograms.But this is not a limitation of the present invention, and those skilled in the art can be according to certainly
Body needs to select the building block brick of any thickness (such as selecting 50-200mm) and density.
Experimental example
Acoustical absorptivity of the Felt under alternative sounds frequency obtained by various embodiments of the present invention and comparative example is detected, as a result
As shown in table 1.
Acoustical absorptivity compares under 1 different frequency of table
| Acoustic absorptivity | 125Hz | 250Hz | 500Hz | 1000Hz | 2000Hz | 4000Hz | 5000Hz |
| Embodiment 2 | 0.49 | 0.55 | 0.61 | 0.68 | 0.73 | 0.78 | 0.81 |
| Embodiment 4 | 0.54 | 0.46 | 0.59 | 0.74 | 0.69 | 0.79 | 0.86 |
| Comparative example | 0.14 | 0.20 | 0.22 | 0.38 | 0.49 | 0.53 | 0.68 |
Sound-insulation capability compares (GB/50118-2010) and mechanical performance under 2 different frequency of table
| Performance indicator | Embodiment 2 | Embodiment 4 | Comparative example |
| Sound reduction index (dB) | 36 | 35 | 36 |
| Anti-flammability (LOI, %) | 48 | 49 | 48 |
| Bulking factor (≤%) | 0.01 | 0.01 | 0.01 |
| Compression strength (>=MPa) | 41.5 | 40.6 | 40.4 |
Note：Sound reduction index, that is, weighted transmission loss RW
By Tables 1 and 2 as can be seen that the present invention be prepared based on building block brick cover sand abatvoix have it is excellent
Sound absorption effect, after the porous resin for using specific dosage, sound absorbing performance further increases, and passes through this manufacture craft, sand grains
Grain size can accurately regulate and control with molding mode, and then the size and arrangement mode of internal void is determined, thus produce each
The sound-absorbing coating of kind different flow resistances and sound absorption characteristics.
In addition, the sand abatvoix that covers based on building block brick that the present invention is prepared also has outstanding fire resistance property, bulking
Rate and compression strength are also all very good, are suitable for the application of indoor sound absorption and sound insulating material.
It is generally acknowledged that resin belongs to macromolecule foaming sound-absorbing material, performance is stable, unit weight is small, moisture-proof, corrosion-resistant, has
Many outstanding physical characteristics.The macromolecule hair of different properties is can be made into using different resin and foaming method in the prior art
Foam material, however these method one side porositys are also not high enough to, on the other hand, many holes are located inside resin, sound wave
It is often difficult to enter, to which substantial effective drainage porosity is very low.Resin particle provided by the present invention, internal void are through
Channel, coordinate the viscous-elastic behaviour of resin itself, can effectively absorb the energy of sound wave to make an incident acoustic energy part or even
All consumption, achievees the effect that sound absorption.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, but it will be understood by those of ordinary skill in the art that：Its
It still can be with technical scheme described in the above embodiments is modified, either to which part or all technical features
Carry out equivalent replacement；And these modifications or replacements, various embodiments of the present invention skill that it does not separate the essence of the corresponding technical solution
The range of art scheme.
Claims (10)
1. a kind of covering sand abatvoix based on building block brick, which is characterized in that including sound-absorbing coating, grid cloth and the block arranged successively
Block brick substrate；
The ingredient of the sound-absorbing coating includes filler and inorganic binder；
The filler includes silica sand and resin particle.
2. according to claim 1 cover sand abatvoix based on building block brick, which is characterized in that the silica sand and the tree
The weight ratio of fat particle is 1：(0.8~1.4)；
Preferably, the grain size of the silica sand is 45~130 mesh；
Preferably, the grain size of the resin particle is 10~30 mesh.
3. according to claim 1 cover sand abatvoix based on building block brick, which is characterized in that the filler and the nothing
The mass ratio of machine binder is 70:10~20.
4. according to claim 1 cover sand abatvoix based on building block brick, which is characterized in that the inorganic binder is silicon
Hydrochlorate inorganic binder；
Preferably, in parts by weight, the silicate inorganic binder includes：7~13 parts of sodium metasilicate, 1~5 part of magnesium silicate, silicon
1~3 part of sour lithium.
5. according to claim 1 cover sand abatvoix based on building block brick, which is characterized in that the preparation of the resin particle
Method includes：
The fiber for being mixed with calcium carbonate is added into resin before resin solidification, in acid condition by the carbon after resin solidification
Sour calcium decomposes；
Preferably, the additive amount of the fiber for being mixed with calcium carbonate account for solidification after resin volume 30%~40%；
Preferably, a diameter of 0.1mm~0.2mm of the fiber；
Preferably, the fiber interweaving arrangement is added in resin before curing；
Preferably, pH=4~6 of the acid condition.
6. according to claim 5 cover sand abatvoix based on building block brick, which is characterized in that the fibre for being mixed with calcium carbonate
The additive amount of calcium carbonate is 20wt%~40wt% in dimension.
7. according to claim 5 cover sand abatvoix based on building block brick, which is characterized in that also to institute before resin solidification
It states and fire retardant is added in resin；
Preferably, the fire retardant is DOPO.
8. covering sand abatvoix based on building block brick according to claim 5~7 any one of them, which is characterized in that the fiber
Easily to decompose fiber, preferably acid fiber by polylactic.
9. covering sand abatvoix based on building block brick according to claim 1~7 any one of them, which is characterized in that the resin
Particle is acidproof heat-proof epoxy particles.
10. covering sand abatvoix based on building block brick according to claim 1~7 any one of them, which is characterized in that the sound-absorbing
Coating is divided into silica sand filler layer and resin particle filler layer, and the resin particle filler layer and the grid cloth phase
It is adjacent；
Preferably, the sound-absorbing coating surface further includes architectural surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810682546.8A CN108678315A (en) | 2018-06-27 | 2018-06-27 | It is a kind of that sand abatvoix is covered based on building block brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810682546.8A CN108678315A (en) | 2018-06-27 | 2018-06-27 | It is a kind of that sand abatvoix is covered based on building block brick |
Publications (1)
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| CN108678315A true CN108678315A (en) | 2018-10-19 |
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Application publication date: 20181019 |