CN108708468A - A kind of sound-absorbing module - Google Patents
A kind of sound-absorbing module Download PDFInfo
- Publication number
- CN108708468A CN108708468A CN201810682147.1A CN201810682147A CN108708468A CN 108708468 A CN108708468 A CN 108708468A CN 201810682147 A CN201810682147 A CN 201810682147A CN 108708468 A CN108708468 A CN 108708468A
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- China
- Prior art keywords
- sound
- groove
- absorbing module
- resin
- fiber
- Prior art date
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- 229920005989 resin Polymers 0.000 claims abstract description 75
- 239000011347 resin Substances 0.000 claims abstract description 75
- 239000002245 particle Substances 0.000 claims abstract description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000004576 sand Substances 0.000 claims abstract description 16
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000002360 preparation method Methods 0.000 claims abstract description 13
- 239000000945 filler Substances 0.000 claims abstract description 10
- 238000012856 packing Methods 0.000 claims abstract description 10
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 8
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052912 lithium silicate Inorganic materials 0.000 claims abstract description 8
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000391 magnesium silicate Substances 0.000 claims abstract description 8
- 229910052919 magnesium silicate Inorganic materials 0.000 claims abstract description 8
- 235000019792 magnesium silicate Nutrition 0.000 claims abstract description 8
- 235000019795 sodium metasilicate Nutrition 0.000 claims abstract description 8
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 8
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 7
- 239000004615 ingredient Substances 0.000 claims abstract description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 58
- 239000000835 fiber Substances 0.000 claims description 36
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 29
- 238000007711 solidification Methods 0.000 claims description 19
- 230000008023 solidification Effects 0.000 claims description 19
- 239000003063 flame retardant Substances 0.000 claims description 14
- 239000003822 epoxy resin Substances 0.000 claims description 13
- 229920000647 polyepoxide Polymers 0.000 claims description 13
- 239000000654 additive Substances 0.000 claims description 12
- 230000000996 additive effect Effects 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 10
- DWSWCPPGLRSPIT-UHFFFAOYSA-N benzo[c][2,1]benzoxaphosphinin-6-ium 6-oxide Chemical group C1=CC=C2[P+](=O)OC3=CC=CC=C3C2=C1 DWSWCPPGLRSPIT-UHFFFAOYSA-N 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 210000000481 breast Anatomy 0.000 claims 1
- 229910052791 calcium Inorganic materials 0.000 claims 1
- 239000011575 calcium Substances 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 8
- 239000011358 absorbing material Substances 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 3
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 description 10
- 238000003756 stirring Methods 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- 238000007654 immersion Methods 0.000 description 8
- 235000019353 potassium silicate Nutrition 0.000 description 8
- 239000002002 slurry Substances 0.000 description 8
- 238000005554 pickling Methods 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000012467 final product Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 239000002105 nanoparticle Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 4
- 229920000747 poly(lactic acid) Polymers 0.000 description 4
- 239000004626 polylactic acid Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000011800 void material Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/86—Sound-absorbing elements slab-shaped
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/52—Grinding aids; Additives added during grinding
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
- E04B2001/8433—Tray or frame type panels or blocks, with or without acoustical filling with holes in their face
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Electromagnetism (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The present invention relates to sound-absorbing material fields, and in particular to a kind of sound-absorbing module, the sound-absorbing module includes groove, and at least one through-hole is arranged in the bottom of the groove；Packing layer is set in the groove；Described filler layer is mainly prepared by the ingredient of following mass fraction：20~30 parts of 30~50 parts of silica sand, 1~3 part of sodium metasilicate, 4~6 parts of magnesium silicate, 2~4 parts of lithium metasilicate and resin particle.Sound-absorbing module sound absorption effect of the present invention is good, and intensity is high, good flame resistance, good weatherability, and setting assembly is simple, is convenient for rapid construction, additionally it is possible to regular recycling.The preparation method of sound-absorbing module of the present invention is simple for process, is suitable for large-scale production.
Description
Technical field
The present invention relates to sound-absorbing material fields, in particular to a kind of sound-absorbing module.
Background technology
Sound-absorbing material is a kind of functional material in construction and decoration, it has double grading of sound absorption and decoration, can be with
Meet particular/special requirement that is not only beautiful but also can absorbing sound.And common sound-absorbing material cannot achieve customization tune on domestic market
Sound absorption characteristics, and also excessively poor etc. disadvantages of environmental-protecting performance are controlled, and part sound-absorbing material flame retardant property is relatively low, and cannot recycled,
It is difficult that assembly is set simultaneously, it is fragile.
In view of this, special propose the present invention.
Invention content
The purpose of the present invention is to provide a kind of sound-absorbing module, the sound-absorbing module sound absorption effect is good, and intensity is high, fire-retardant
Property good, good weatherability, setting assembly is simple, is convenient for rapid construction, additionally it is possible to regular recycling.
In order to realize that the above-mentioned purpose of the present invention, spy use following technical scheme：
The present invention relates to a kind of sound-absorbing module, the sound-absorbing module includes groove, the bottom setting at least one of the groove
A through-hole；Packing layer is set in the groove；
Described filler layer is mainly prepared by the ingredient of following mass fraction：
30~50 parts of silica sand, 1~3 part of sodium metasilicate, 4~6 parts of magnesium silicate, 2~4 parts of lithium metasilicate and resin particle 20~30
Part.
Compared with prior art, beneficial effects of the present invention are：
The packing layer being prepared using specified raw material and usage ratio, groove is arranged in sound-absorbing module of the present invention in groove
At least one through-hole is arranged to make sound enter in bottom, improves sound absorption effect；Sound-absorbing module sound absorption effect of the present invention is good, intensity
Height, good flame resistance, good weatherability, setting assembly is simple, is convenient for rapid construction, additionally it is possible to regular recycling.The present invention inhales
The preparation method of sound module is simple for process, is suitable for large-scale production.
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 a kind of sound-absorbing modular structure schematic diagram that specific implementation mode is provided of the present invention.
Reference numeral：
1- grooves, 2- packing layers, 3- interconnecting pieces.
Specific implementation mode
The present invention relates to a kind of sound-absorbing module, the sound-absorbing module includes groove, the bottom setting at least one of the groove
A through-hole；Packing layer is set in the groove；
Described filler layer is mainly prepared by the ingredient of following mass fraction：
30~50 parts of silica sand, 1~3 part of sodium metasilicate, 4~6 parts of magnesium silicate, 2~4 parts of lithium metasilicate and resin particle 20~30
Part.
In some embodiments, the grain size of the silica sand is 45~130 mesh, and the grain size of the resin particle is 10~30
Mesh.
In some embodiments, 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；
Optionally, in pickling, to promote acid to penetrate into the CO that inside resin and reaction generates2Discharge, it is sustainable to stir
Mix processing.
By this manufacture craft, silica sand grain size can accurately regulate and control with molding mode, and then internal void is determined
Thus size and arrangement mode produce the sound absorption coating of various different flow resistances and sound absorption characteristics.It is of the present invention porous
Resin, sound absorption effect is more preferable, can effectively promote acoustical absorptivity.
In some embodiments, the additive amount of the fiber for being mixed with calcium carbonate account for solidification after resin volume 30%~
40%；Preferably 35%；
In some embodiments, a diameter of 0.1mm~0.2mm of the fiber；
In some embodiments, the fiber interweaving arrangement is added in resin before curing；
In some embodiments, pH=4~6 of the acid condition；Preferably, acidolysis temperature is 110~120 DEG C,
The acidolysis time is for 24 hours~48h.
In some embodiments, the additive amount for being mixed with calcium carbonate in the fiber of calcium carbonate be 20wt%~
40wt%, it is also an option that 30wt%.
In some embodiments, 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, non-oxide
Under atmosphere protection, mixing spinning after mixing is melted at 179 DEG C~200 DEG C.
In some embodiments, the fiber is easily to decompose fiber, preferably acid fiber by polylactic.
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.
In some embodiments, fire retardant also is added into the resin before resin solidification；
In some embodiments, the fire retardant is DOPO.
In some embodiments, the additive amount of the fire retardant is the 6%~15% of the resin quality；Preferably
8%~13%.
In some embodiments, the resin particle is acidproof heat-proof epoxy particles.
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.
In some embodiments, interconnecting piece is set on the side of the groove；
In some embodiments, the interconnecting piece includes buckle-type interconnecting piece；
In some embodiments, the groove includes one or more in metal groove, preferably includes iron groove
With it is one or more in aluminum groove.
In some embodiments, the bottom perforated rate of the groove is 2%~40%；
In some embodiments, the aperture of the bottom perforated of the groove is 1~6mm.
In some embodiments, the thickness of described filler layer is 0.3~5mm.
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 of sound-absorbing module, including：
A. the preparation of inorganic binder：By 2 parts of 1 part of (parts by weight meter) sodium metasilicate, 6 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. 30 parts of sand grains is added in gained waterglass and 30 parts of resin particle is sufficiently mixed stirring and slurry is prepared；Carefully
The grain size of sand is 45~130 mesh, and the grain size of resin particle is 10~30 mesh.
D. filler slurry is packed into prefabricated groove (bottom perforated rate is 2%, and the aperture of bottom perforated is 1mm), is coagulated
After Gu to obtain the final product, the thickness of gained packing layer is 0.3mm, obtains a kind of acoustic board.
Embodiment 2
A kind of preparation method of sound-absorbing module, including：
A. the preparation of inorganic binder：By 4 parts of 3 parts of (parts by weight meter) sodium metasilicate, 4 parts of magnesium silicate, lithium metasilicate addition water 30
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. 50 parts of sand grains is being added in gained waterglass and 20 parts of resin particle is sufficiently mixed stirring and slurry is prepared；
The grain size of fine sand is 45~130 mesh, and the grain size of resin particle is 10~30 mesh.
D. filler slurry is packed into prefabricated groove (bottom perforated rate is 40%, and the aperture of bottom perforated is 6mm), is coagulated
After Gu to obtain the final product, the thickness of gained packing layer is 5mm, obtains a kind of acoustic board.
Embodiment 3
A kind of preparation method of sound-absorbing module, including：
A. the preparation of inorganic binder：1.3 parts of (parts by weight meter) sodium metasilicate, 4.6 parts of magnesium silicate, 3.5 parts of lithium metasilicate are added
Enter 20 parts of water, obtains 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. 36 parts of sand grains is added in gained waterglass and 24 parts of resin particle is sufficiently mixed stirring and slurry is prepared；Carefully
The grain size of sand is 45~130 mesh, and the grain size of resin particle is 10~30 mesh.
D. filler slurry is packed into prefabricated groove (bottom perforated rate is 30%, and the aperture of bottom perforated is 5mm), is coagulated
After Gu to obtain the final product, the thickness of gained packing layer is 4mm, obtains a kind of acoustic board.
Embodiment 4
A kind of preparation method of sound-absorbing module, including：
A. the preparation of inorganic binder：By 3 parts of 2 parts of (parts by weight meter) sodium metasilicate, 5 parts of magnesium silicate, lithium metasilicate addition water 23
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. 40 parts of sand grains is added in gained waterglass and 25 parts of resin particle is sufficiently mixed stirring and slurry is prepared；Carefully
The grain size of sand is 45~130 mesh, and the grain size of resin particle is 10~30 mesh.
D. filler slurry is packed into prefabricated groove (bottom perforated rate is 25%, and the aperture of bottom perforated is 4mm), is coagulated
After Gu to obtain the final product, the thickness of gained packing layer is 3mm, obtains a kind of acoustic board.Comparative example
It is same as Example 4, it differs only in, when preparing resin particle, does not add the fiber for being mixed with calcium carbonate, but still
So through peracid treatment, and will be granulated after epoxy resin CER-170 directly solidification.Experimental example
Acoustical absorptivity of the sound-absorbing module under alternative sounds frequency obtained by the embodiment of the present invention and 4 comparative examples is detected, as a result
As shown in table 1.
Acoustical absorptivity compares under 1 different frequency of table
Note：Experiment is completed in reverberation chamber, acoustic absorptivity test.
It can be seen from Table 1 that the sound-absorbing module that the present invention is prepared has excellent sound absorption effect, use specific
After the porous resin of dosage, sound absorbing performance further increases, and by this manufacture craft, sand grains grain size can be accurate with molding mode
Ground regulates and controls, and then the size and arrangement mode of internal void is determined, thus produces various different flow resistances and sound absorption characteristics
Plank.Porous resin of the present invention, sound-absorbing effect is more preferable, can effectively promote sound absorbing power.
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.
The properties of the embodiment of the present invention 4 and the preparation-obtained sound-absorbing module of comparative example are detected, as a result such as
Shown in table 2.
2 performance parameter of table
As shown in Table 2, sound-absorbing module of the present invention all has outstanding fire resistance property, environmental-protecting performance, bulking factor and uvioresistant
The ability of line is also all very good, and intensity is high, good weatherability.
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 sound-absorbing module, which is characterized in that the sound-absorbing module includes groove, and the bottom setting of the groove is at least one
Through-hole；Packing layer is set in the groove；
Described filler layer is mainly prepared by the ingredient of following mass fraction：
20~30 parts of 30~50 parts of silica sand, 1~3 part of sodium metasilicate, 4~6 parts of magnesium silicate, 2~4 parts of lithium metasilicate and resin particle.
2. sound-absorbing module according to claim 1, which is characterized in that the grain size of the silica sand is 45~130 mesh, the tree
The grain size of fat particle is 10~30 mesh.
3. sound-absorbing module according to claim 1, which is characterized in that 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 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.
4. sound-absorbing module according to claim 3, which is characterized in that described to be mixed with adding for calcium carbonate in the fiber of calcium carbonate
Dosage is 20wt%~40wt%.
5. sound-absorbing module according to claim 3, which is characterized in that the fiber is easily to decompose fiber, preferably poly- breast
Sour fiber.
6. sound-absorbing module according to claim 3, which is characterized in that resistance is added also into the resin before resin solidification
Fire agent；
Preferably, the fire retardant is DOPO.
7. sound-absorbing module according to claim 3, which is characterized in that the resin particle is acidproof heat-proof epoxy resin
Grain.
8. according to claim 1~7 any one of them sound-absorbing module, which is characterized in that be arranged on the side of the groove and connect
Socket part；
Preferably, the interconnecting piece includes buckle-type interconnecting piece；
Preferably, the groove includes one or more in metal groove, is preferably included in iron groove and aluminum groove
It is one or more.
9. according to a kind of any sound-absorbing module of claim 1~7, which is characterized in that the bottom perforated rate of the groove
It is 2%~40%；
Preferably, the aperture of the bottom perforated of the groove is 1~6mm.
10. according to a kind of any sound-absorbing module of claim 1~7, which is characterized in that the thickness of described filler layer is
0.3~5mm.
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| CN201810682147.1A CN108708468A (en) | 2018-06-27 | 2018-06-27 | A kind of sound-absorbing module |
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ID=63873180
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114538852A (en) * | 2022-03-16 | 2022-05-27 | 徐州工程学院 | Inorganic porous sound-absorbing material and preparation method thereof |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114538852A (en) * | 2022-03-16 | 2022-05-27 | 徐州工程学院 | Inorganic porous sound-absorbing material and preparation method thereof |
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Application publication date: 20181026 |