CN102775180A - Lightweight acoustic panel containing rare earth catalyst, and preparation method thereof - Google Patents
Lightweight acoustic panel containing rare earth catalyst, and preparation method thereof Download PDFInfo
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- CN102775180A CN102775180A CN2011101210094A CN201110121009A CN102775180A CN 102775180 A CN102775180 A CN 102775180A CN 2011101210094 A CN2011101210094 A CN 2011101210094A CN 201110121009 A CN201110121009 A CN 201110121009A CN 102775180 A CN102775180 A CN 102775180A
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- acoustic panel
- rare earth
- earth catalyst
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- acoustic
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- 238000002360 preparation method Methods 0.000 title claims abstract description 39
- 239000003054 catalyst Substances 0.000 title claims abstract description 28
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 28
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 28
- 239000000843 powder Substances 0.000 claims abstract description 28
- 239000004743 Polypropylene Substances 0.000 claims abstract description 26
- 239000000835 fiber Substances 0.000 claims abstract description 26
- 239000004816 latex Substances 0.000 claims abstract description 26
- 229920000126 latex Polymers 0.000 claims abstract description 26
- -1 polypropylene Polymers 0.000 claims abstract description 26
- 229920001155 polypropylene Polymers 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 20
- 239000010881 fly ash Substances 0.000 claims abstract description 16
- 230000030279 gene silencing Effects 0.000 claims description 30
- 239000003795 chemical substances by application Substances 0.000 claims description 29
- 239000004570 mortar (masonry) Substances 0.000 claims description 29
- 239000004568 cement Substances 0.000 claims description 28
- 238000012423 maintenance Methods 0.000 claims description 25
- 238000012545 processing Methods 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 18
- 239000006260 foam Substances 0.000 claims description 17
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 13
- 238000005187 foaming Methods 0.000 claims description 10
- ICAKDTKJOYSXGC-UHFFFAOYSA-K lanthanum(iii) chloride Chemical group Cl[La](Cl)Cl ICAKDTKJOYSXGC-UHFFFAOYSA-K 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 9
- 238000007569 slipcasting Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 229910010272 inorganic material Inorganic materials 0.000 abstract description 2
- 239000011147 inorganic material Substances 0.000 abstract description 2
- 239000011398 Portland cement Substances 0.000 abstract 1
- 230000032683 aging Effects 0.000 abstract 1
- 239000004088 foaming agent Substances 0.000 abstract 1
- 235000019362 perlite Nutrition 0.000 abstract 1
- 239000010451 perlite Substances 0.000 abstract 1
- 239000011505 plaster Substances 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 21
- 239000000463 material Substances 0.000 description 14
- 238000005192 partition Methods 0.000 description 13
- 238000012360 testing method Methods 0.000 description 10
- 238000011282 treatment Methods 0.000 description 10
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 9
- 238000005452 bending Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 238000009413 insulation Methods 0.000 description 8
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 7
- 239000002131 composite material Substances 0.000 description 7
- 238000007334 copolymerization reaction Methods 0.000 description 7
- 239000011507 gypsum plaster Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 239000003469 silicate cement Substances 0.000 description 7
- 239000010883 coal ash Substances 0.000 description 5
- 235000013312 flour Nutrition 0.000 description 5
- 238000013022 venting Methods 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 239000011358 absorbing material Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229920004935 Trevira® Polymers 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical group O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 238000011418 maintenance treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a lightweight acoustic panel containing a rare earth catalyst, and a preparation method thereof. The lightweight acoustic panel is composed of raw materials of: Portland cement, fly ash, plaster powder, polypropylene fiber, re-dispersible latex powder, expanded perlite, a foaming agent, and a rare earth catalyst. According to the invention, during an acoustic panel preparation process, the rare earth catalyst is adopted, such that inorganic materials are sufficiently aerated, and a reaction is carried out. Therefore, acoustic panel quality is ensured, the panel is light and does not deform. The prepared acoustic panel is advantaged in light weight, high strength, substantial sound-absorbing effect, good water resistance, and aging resistance.
Description
Technical field
The present invention relates to a kind of Building Decoration Material, particularly a kind of sound-absorbing sheet material that is used to be installed on the body of wall.
Background technology
Acoustic panel is meant the tabular material with sound-absorbing noise reduction effect, is mainly used in that cinema, music hall, museum, exhibition center, Library, hearing room, gallery, auction hall, gymnasium, Conference Hall, multifunctional hall, hotel lobby, hospital, market, school, qin room, meeting room, television studio, recording studio, karaoke chamber, bar, industrial premises, machine room, family's noise reduction etc. are had relatively high expectations to acoustic enviroment and the place of top grade decoration.
Acoustic panel is divided into wooden acoustic panel, mineral wool acoustic panel, cloth art acoustic panel, trevira acoustic panel, metal acoustic panel five big classes according to manufacturing materials.Wherein, wooden acoustic panel processes according to Principles of Acoustics; The surface of mineral wool acoustic panel is covered with the hole that the depth, shape, aperture have nothing in common with each other; The core material of cloth art acoustic panel is a centrifugally glass-wool; The trevira acoustic panel is a kind of ideal sound-proof decorative materials.Its raw material is 100% trevira, but has sound-absorbing, environmental protection, fire-retardant, heat insulation, insulation, moistureproofly, anti-goes mouldy, is prone to dedusting, is prone to cutting parquets, easy construction, good stability, strong shock resistance; The metal acoustic panel is to gather in the bottom surface of a metal plate to have the pyrometric cone of an oval minute aperture at the bottom of being arranged with many awls; Establish tool at the end face of metal plate again and be configured as fine undaform surface, and on the undaform surface, also be arranged with the shaping pyrometric cone around the top, corresponding oval minute aperture place, reflected sound wave is collided each other and is disturbed and the generation decay; Simultaneously; Even acoustic wave segment will penetrate the pyrometric cone awl oval minute aperture at the end, also can cause the sound wave transmission loss, reach sound-absorbing effect.
The research of acoustic panel is numerous, main as follows, for example Granted publication mainly is made up of absorb sound wooden partition and packed sound-absorbing material number for the utility model patent of CN201037234Y discloses a kind of high-strength cement base lightweight sound-absorbing composite board unit member; Composite sound absorbing wooden partition top is provided with the convex tendon equipped with top sound-absorbing composite board unit member; There is the groove equipped with the sound-absorbing composite board unit member in below sound absorption wooden partition below; Be provided with when assembling and structural steel beam with the fixing groove of usefulness of steel part at two big cavity middle part outer sides of sound absorption wooden partition, the wooden partition that absorbs sound has the hole that absorbs sound towards the one side of noise source, and each big bottom has water vent; Should be on the wooden partition of acoustic board and have the sound absorption hole, cause the intensity of acoustic board low.
For example publication number is the method for manufacture that the application for a patent for invention of CN1296876 discloses a kind of sound-absorbing wood-foam cement plate again; This method with cement blowing agent and cement mixing after again with the wood chip mixing; Put into mould and pressurize, foam, solidify, at room temperature solidify the demoulding after 12～48 hours, at room temperature continue to solidify one to two all sound-absorbing wood-foam cement plate products that gets then; Whipping agent is organism or the aluminium powder that contains isocyanate groups, and the consumption of whipping agent is 2～50 kilograms/meter
3, this preparing method's technology is numerous and diverse, and the PT is long, and production cost is high, and acoustic board is formed by timber and cement production, and is different with the coefficient of expansion of cement owing to timber, and the intensity of the acoustic board that causes processing is low, easy deformation.
Granted publication number discloses cement-based composite sound absorption material, its method of manufacture and a kind of sound-absorbing barrier for the patent of invention of CN1308551C for another example.This cement-based composite sound absorption material is formed by cellulosic porous absorbing material, surface-modifying agent, cement and the compacting of water mixing layer-by-layer distribution; Wherein cellulosic porous absorbing material is wooden stalk, straw or club-shaped material; Its sectional dimension is 0.5～6mm * 0.5～6mm, and length is 30mm～150mm.The present invention is through steps such as raw material stirring, layer-by-layer distribution, matched moulds pressurization, maintenance, cutting processing cement-based composite sound absorption material; Though the noise reduction coefficient of this sound-absorbing material is high, fire retardant anticorrosion; Can directly be used as the absorbing sound type sound barrier; But the physicals quality of this sound-absorbing barrier is heavy, and intensity is low, and ultimate compression strength and counter-bending breaking load intensity are low.
Summary of the invention
The objective of the invention is provides a kind of light silencing plate and preparation method thereof to above prior art problems, this light silencing plate light weight, intensity height; Acoustically effective is good; The sound absorption coefficient of the acoustic panel of preparation is high, and the primary standard that is up to state standards can play excellent sound-absorbing effect.
For realizing the object of the invention; One aspect of the present invention provides a kind of light silencing plate that contains rare earth catalyst, comprises following raw material: cement, flyash, terra alba, polypropylene fibre, redispersible latex powder, pearlstone, whipping agent, rare earth catalyst.
Wherein, the weight part proportioning of the raw material of composition acoustic panel is:
Particularly, the weight part proportion optimization of raw material is:
Wherein, described cement is chosen as silicate cement; Said terra alba is the plaster of Paris, and its chemical molecular formula is CaSO
41/2H
2O; Said polypropylene fibre is selected monofilament shape polypropylene fibre; Described redispersible latex powder is the redispersible latex powder of vinyl acetate (VAC) and tertiary ethylene carbonate (VeoVa) copolymerization; The diameter of said pearlstone is 1-3mm; Said whipping agent is the whipping agent of AS class; Described rare earth catalyst is a Lanthanum trichloride.
Especially, can at 50% solution viscosity of dispersed latex powder 0.5～2.0Pas.
Particularly, the density of polypropylene fibre is 0.85-0.91g/cm
3, equivalent diameter is 18-48um.
The present invention provides a kind of above-mentioned preparation method who contains the light silencing plate of rare earth catalyst on the other hand, comprises as follows step in sequence:
1) pearlstone, cement, flyash, gypsum, polypropylene fibre, redispersible latex powder, rare earth catalyst are added in the stirrer successively, stir, and in raw material, add entry, process the mixture that stirs;
2) whipping agent and water are placed system bubble machine, send in the stirrer after processing foam, stir, make the acoustic panel mortar with mixture;
3) the acoustic panel mortar is joined in the mould through slip casting machine, leave standstill, form the acoustic panel slab;
4) the acoustic panel slab is sent into the maintenance district and carry out the maintenance processing.
Wherein, the weight part proportioning of raw material described in the step 1) is:
Particularly, the weight part proportion optimization of said raw material is:
Particularly, described cement is chosen as silicate cement; Said terra alba is the plaster of Paris, and its chemical molecular formula is CaSO
41/2H
2O; Said polypropylene fibre is selected monofilament shape polypropylene fibre; Described redispersible latex powder is the redispersible latex powder of vinyl acetate (VAC) and tertiary ethylene carbonate (VeoVa) copolymerization; The diameter of said pearlstone is 1-3mm; Said whipping agent is the whipping agent of AS class; Described rare earth catalyst is a Lanthanum trichloride.
Especially, can be 0.5～2.0 at 50% solution viscosity (Pas) of dispersed latex powder; The density of polypropylene fibre is 0.85-0.91g/cm
3, equivalent diameter is 18-48um.
Wherein, the water ratio of the mixture described in the step 1) is 20-30%, is preferably 22-25%; The foamy bubble ratio surface-area of processing described in the step 3) is 250-254cm
2/ cm
2, surface viscosity is 50-55 * 10
-3Pas, foamy height are 181-190mm (0min), 178-180mm (5min), foam time>=5100min, and the pH value is 7-11, air capacity is 4.0-4.2%.
The time of wherein, in step 4), leaving standstill is 5-6 hour; Maintenance treatment temperature described in the step 5) is 60-80 ℃, and relative humidity is 50%-100%, and curing time is 8-24 hour.
The light silencing plate body of the present invention's preparation has following advantage:
1, the light silencing plate light weight of the present invention's preparation, area density is lower than 88.5Kg/m
2, practiced thrift starting material, reduced production cost.
2, the light silencing plate intensity of the present invention's preparation is high, and the surperficial ultimate compression strength of acoustic panel is high, reaches more than the 5.1MPa; Counter-bending breaking load reaches more than the 1.8KPa, and the physicals of the light silencing plate of preparation meets the requirement of building industry industry standard JG/T169-2005 " light lath for building partition wall ".
3, the acoustically effective of the light silencing plate of the present invention's preparation is good; Sound insulation efficient is high; Oise insulation factor reaches more than the 32dB; Sound absorption coefficient reaches 0.79-0.82, the requirement of the acoustical behavior National standard GB/T20247-2006 " acoustic absorptivity measurements of acoustic reverberation chamber " of surperficial light silencing plate, GB/T16731-1997 " the sound absorbing capabilities classification of building sound absorption product ", the one-level requirement of the GBJ121-88 that is up to state standards " Standard for assessment of building sound insulation ".
4, adopt Lanthanum trichloride to carry out katalysis in the preparation process of the light silencing plate of the present invention's preparation, with raw material cement, flyash as rare earth catalyst; Terra alba, the aerating catalyzed reaction takes place in whipping agent; Releasing hydrogen gas makes abundant aerating of inorganic materials and each other fully reaction, has accelerated preparation speed; Shorten the PT, improved production efficiency.
5, light silencing plate of the present invention in the preparation process because the katalysis of rare earth catalyst Lanthanum trichloride; The hydrogen that produces forms a large amount of holes in acoustic panel inside in the process of setting of slab; The acoustic panel light weight that not only makes preparation, intensity is high, non-warping modification; But also, improved the sound-absorbing effect of acoustic panel owing to the hole in the acoustic panel.
Embodiment
Embodiment 1
1, gets the raw materials ready according to following weight part proportioning
Wherein, described cement is that label is the silicate cement of 42.5R; Said flyash is available from the first level flour coal ash in fuel-burning power plant, Huaneng Group, Foochow; Said polypropylene fibre is a monofilament shape polypropylene fibre, and its density is 0.91g/cm
3, its equivalent diameter is 18-48um; Said redispersible latex powder be the VAC/VeoVa copolymerization can (Shanxi Sanwei Group Co., Ltd. produces in dispersed latex powder; Model: SWF-04), solid content>=98% wherein, ash content is 8-12%; Bulk density is 300-500g, and 50% solution viscosity is 0.5-2.0Pas; The diameter of said pearlstone is 1-3mm; Whipping agent is available from the AS class whipping agent of the clear graceful washing product in Jiangsu ltd, and model is HF; Described rare earth catalyst is a Lanthanum trichloride.
2, preparation mortar
1) pearlstone is added in the stirrer, start stirrer, under whipped state, add cement, flyash, the plaster of Paris then successively; Polypropylene fibre, redispersible latex powder, rare earth catalyst, water; Stir, make mixture, wherein, the water ratio of mixture is 22.88%.
2) water of whipping agent and 10kg is joined in the foaming machine (Yantai Jin Te general-purpose equipment Manufacturing Co., Ltd) make bubble; Then the foam of processing is sent in the stirring station (the safe Chinese workers' journey machinery in Qingzhou ltd); Stir with mixture; Make the acoustic panel mortar, wherein, the foamy bubble ratio surface-area that foaming machine is processed is 254cm
2/ cm
2, surface viscosity is 50 * 10
-3Pas, foamy height were 181mm in the time of 0 minute, and promptly 181mm (0min), the height placed after 5 minutes are 178mm, i.e. 178mm (5min), foam time>=5100min, the acoustic panel mortar that makes.
3, grouting treatment
The acoustic panel mortar is joined in the sound-absorbing wall board mold through slip casting machine; When the venting hole of treating mould top all has the acoustic panel mortar to discharge, stop grouting treatment, the sound-absorbing wall board mold leaves standstill to be placed 5 hours; Form the acoustic panel slab, wherein the size dimension of mould is 3960*500*90mm;
The size dimension of acoustic panel slab can also be other sizes, for example can be the arbitrary dimension size of actual design.
4, maintenance and forming processes
The sound-absorbing wall board mold is drawn back, behind the taking-up acoustic panel slab, and send into the maintenance district and carry out the maintenance processing, obtain the finished product acoustic panel, wherein, 60 ℃ of the curing temperatures in maintenance district, relative humidity 90%, curing time 12 hours.
The acoustic panel of processing cuts into the sheet material of required specification.
Detect area density, surperficial ultimate compression strength, the counter-bending breaking load of the light silencing plate of preparation according to building industry industry standard JG/T169-2005 " light lath for building partition wall ", detected result is seen table 1.
Test sound absorption coefficient, the test result of the light silencing plate of preparation by standard GB/T20247-2006 " acoustic absorptivity measurements of acoustic reverberation chamber ", GB/T16731-1997 " the sound absorbing capabilities classification of building sound absorption product " method and see table 1.
Embodiment 2
1, gets the raw materials ready according to following weight part proportioning
Wherein, described cement is that label is the silicate cement of 52.5R; Said flyash is available from power station, Huaneng Group, Foochow, the first level flour coal ash; Said polypropylene fibre is a monofilament shape polypropylene fibre, and its density is 0.85g/cm
3, its equivalent diameter is 18-48um; Said redispersible latex powder be the VAC/VeoVa copolymerization can (Shanxi Sanwei Group Co., Ltd. produces, and model: SWF-04), its 50% solution viscosity is 0.5-2.0Pas in dispersed latex powder; Said whipping agent is available from the AS class whipping agent of the clear graceful washing product in Jiangsu ltd, and model is HF; Described rare earth catalyst is a Lanthanum trichloride.
2, preparation mortar
1) pearlstone is added in the stirrer, start stirrer, under whipped state, add cement, flyash, the plaster of Paris then successively; Polypropylene fibre, redispersible latex powder, rare earth catalyst, water; Stir, make mixture, wherein, the water ratio of mixture is 20%.
2) water of whipping agent and 10kg is joined make bubble in the foaming machine, then the foam of processing is sent in the stirrer, stir with mixture, make the acoustic panel mortar, wherein, the foamy bubble ratio surface-area that foaming machine is processed is 252cm
2/ cm
2, surface viscosity is 52 * 10
-3Pas, foamy height were 187mm in the time of 0 minute, and promptly 187mm (0min), the height placed after 5 minutes are 179mm, i.e. 179mm (5min), foam time>=5100min, the acoustic panel mortar that makes.
3, grouting treatment
The acoustic panel mortar is joined in the mould through slip casting machine; When the venting hole of treating mould top all has the acoustic panel mortar to discharge, stop grouting treatment, the sound-absorbing wall board mold leaves standstill to be placed 5-6 hour; Form the acoustic panel slab, wherein the size dimension of mould is 3960*500*90mm.
4, maintenance and forming processes
The sound-absorbing wall board mold is drawn back, behind the taking-up acoustic panel slab, and send into the maintenance district and carry out the maintenance processing, wherein, 80 ℃ of the curing temperatures in maintenance district, relative humidity 50%, curing time 8 hours.
The acoustic panel of processing cuts into the sheet material of required specification.
Detect area density, surperficial ultimate compression strength, the counter-bending breaking load of the light silencing plate of preparation according to building industry industry standard JG/T169-2005 " light lath for building partition wall ", detected result is seen table 1.
Test sound absorption coefficient, the oise insulation factor of the light silencing plate of preparation by standard GB/T20247-2006 " acoustic absorptivity measurements of acoustic reverberation chamber ", GB/T16731-1997 " the sound absorbing capabilities classification of building sound absorption product " method, test result is seen table 1.
Embodiment 3
1, gets the raw materials ready according to following weight part proportioning
Wherein, described cement is that label is the silicate cement of 42.5R; Said flyash is available from power station, Huaneng Group, Foochow, the first level flour coal ash; Said polypropylene fibre is a monofilament shape polypropylene fibre, and its density is 0.91g/cm
3, its equivalent diameter is 18-48um; Said redispersible latex powder be the VAC/VeoVa copolymerization can (Shanxi Sanwei Group Co., Ltd. produces, and model: SWF-04), its 50% solution viscosity is 0.5-2.0Pas in dispersed latex powder; Said whipping agent is available from the AS class whipping agent of the clear graceful washing product in Jiangsu ltd, and model is HF; Described rare earth catalyst is a Lanthanum trichloride.
2, preparation mortar
1) pearlstone is added in the stirrer, start stirrer, under whipped state, add cement, flyash, the plaster of Paris then successively; Polypropylene fibre, redispersible latex powder, rare earth catalyst, water; Stir, make mixture, wherein, the water ratio of mixture is 20%.
2) water of whipping agent and 10kg is joined make bubble in the foaming machine, then the foam of processing is sent in the stirrer, stir with mixture, make the acoustic panel mortar, wherein, the foamy bubble ratio surface-area of processing is 250cm
2/ cm
2, surface viscosity is 55 * 10
-3Pas, foamy height were 185mm in the time of 0 minute, and promptly 185mm (0min), the height placed after 5 minutes are 178mm, i.e. 178mm (5min), foam time>=5100min, the acoustic panel mortar that makes.
3, grouting treatment
The acoustic panel mortar is joined in the mould through slip casting machine; When the venting hole of treating mould top all has the acoustic panel mortar to discharge, stop grouting treatment, the sound-absorbing wall board mold leaves standstill to be placed 5.5 hours; Form the acoustic panel slab, wherein the size dimension of mould is 3960*500*90mm.
4, maintenance and forming processes
The sound-absorbing wall board mold is drawn back, behind the taking-up acoustic panel slab, and send into the maintenance district and carry out the maintenance processing, wherein, 70 ℃ of the curing temperatures in maintenance district, relative humidity 80%, curing time 24 hours;
The acoustic panel of processing cuts into the sheet material of required specification.
Detect area density, surperficial ultimate compression strength, the counter-bending breaking load of the light silencing plate of preparation according to building industry industry standard JG/T169-2005 " light lath for building partition wall ", detected result is seen table 1.
Test sound absorption coefficient, the oise insulation factor of the light silencing plate of preparation by standard GB/T20247-2006 " acoustic absorptivity measurements of acoustic reverberation chamber ", GB/T16731-1997 " the sound absorbing capabilities classification of building sound absorption product " method, test result is seen table 1.
Embodiment 4
1, gets the raw materials ready according to following weight part proportioning
Wherein, described cement is that label is the silicate cement of 42.5R; Said flyash is available from the first level flour coal ash in power station, Huaneng Group, Foochow; Said polypropylene fibre is a monofilament shape polypropylene fibre, and its density is 0.91g/cm
3, its equivalent diameter is 18-48um; Said redispersible latex powder be the VAC/VeoVa copolymerization can (Shanxi Sanwei Group Co., Ltd. produces, and model: SWF-04), its 50% solution viscosity is 0.5-2.0Pas in dispersed latex powder; The diameter of said pearlstone is 1-3mm; Said whipping agent is available from the AS class whipping agent of the clear graceful washing product in Jiangsu ltd, and model is HF; Described rare earth catalyst is a Lanthanum trichloride.
2, preparation mortar
1) pearlstone is added in the stirrer, start stirrer, under whipped state, add cement, flyash, the plaster of Paris then successively; Polypropylene fibre, redispersible latex powder, rare earth catalyst, water; Stir, make mixture, wherein, the water ratio of mixture is 22%.
2) water of whipping agent and 10kg is joined make bubble in the foaming machine, then the foam of processing is sent in the stirrer, stir with mixture, make the acoustic panel mortar, wherein, the foamy bubble ratio surface-area that foaming machine is processed is 254cm
2/ cm
2, surface viscosity is 50 * 10
-3Pas, foamy height were 181mm in the time of 0 minute, and promptly 181mm (0min), the height placed after 5 minutes are 178mm, i.e. 178mm (5min), foam time>=5100min, the acoustic panel mortar that makes.
3, grouting treatment
The acoustic panel mortar is joined in the mould through slip casting machine; When the venting hole of treating mould top all has the acoustic panel mortar to discharge, stop grouting treatment, the sound-absorbing wall board mold leaves standstill to be placed 6 hours; Form the acoustic panel slab, wherein the size dimension of mould is 3960*500*90mm.
4, maintenance and forming processes
The sound-absorbing wall board mold is drawn back, behind the taking-up acoustic panel slab, and send into the maintenance district and carry out the maintenance processing, wherein, 60 ℃ of the curing temperatures in maintenance district, relative humidity 90%, curing time 12 hours;
The acoustic panel of processing cuts into the sheet material of required specification.
Detect area density, surperficial ultimate compression strength, the counter-bending breaking load of the light silencing plate of preparation according to building industry industry standard JG/T169-2005 " light lath for building partition wall ", detected result is seen table 1.Test sound absorption coefficient, the oise insulation factor of the light silencing plate of preparation by standard GB/T20247-2006 " acoustic absorptivity measurements of acoustic reverberation chamber ", GB/T16731-1997 " the sound absorbing capabilities classification of building sound absorption product " method, test result is seen table 1.
Embodiment 5
1, gets the raw materials ready according to following weight part proportioning
Wherein, described cement is that label is the silicate cement of 42.5R; Said flyash is available from the first level flour coal ash in power station, Huaneng Group, Foochow; Said polypropylene fibre is a monofilament shape polypropylene fibre, and its density is 0.85g/cm
3, its equivalent diameter is 18-48um; Said redispersible latex powder be the VAC/VeoVa copolymerization can (Shanxi Sanwei Group Co., Ltd. produces, and model: SWF-04), its 50% solution viscosity is 0.5-2.0Pas in dispersed latex powder; The diameter of said pearlstone is 1-3mm; Said whipping agent is available from the AS class whipping agent of the clear graceful washing product in Jiangsu ltd, and model is HF; Described rare earth catalyst is a Lanthanum trichloride.
2, preparation mortar
1) pearlstone is added in the stirrer, start stirrer, under whipped state, add cement, flyash, the plaster of Paris then successively; Polypropylene fibre, redispersible latex powder, rare earth catalyst, water; Stir, make mixture, wherein, the water ratio of mixture is 25%.
2) water of whipping agent and 10kg is joined make bubble in the foaming machine, then the foam of processing is sent in the stirrer, stir with mixture, make the acoustic panel mortar, wherein, the foamy bubble ratio surface-area that foaming machine is processed is 254cm
2/ cm
2, surface viscosity is 55 * 10
-3Pas, foamy height were 190mm in the time of 0 minute, and promptly 190mm (0min), the height placed after 5 minutes are 180mm, i.e. 180mm (5min), foam time>=5100min, the acoustic panel mortar that makes.
3, grouting treatment
The acoustic panel mortar is joined in the sound-absorbing wall board mold through slip casting machine; When the venting hole of treating mould top all has the acoustic panel mortar to discharge, stop grouting treatment, the sound-absorbing wall board mold leaves standstill to be placed 5 hours; Form the acoustic panel slab, wherein the size dimension of mould is 3960*500*90mm.
4, maintenance and forming processes
The sound-absorbing wall board mold is drawn back, behind the taking-up acoustic panel slab, and send into the maintenance district and carry out the maintenance processing, wherein, 70 ℃ of the curing temperatures in maintenance district, relative humidity 70%, curing time 16 hours.
The acoustic panel of processing cuts into the sheet material of required specification.
Detect area density, surperficial ultimate compression strength, the counter-bending breaking load of the light silencing plate of preparation according to building industry industry standard JG/T169-2005 " light lath for building partition wall ", detected result is seen table 1.
Test sound absorption coefficient, the test result of the light silencing plate of preparation by standard GB/T20247-2006 " acoustic absorptivity measurements of acoustic reverberation chamber ", GB/T16731-1997 " the sound absorbing capabilities classification of building sound absorption product " method and see table 1.
The performance test results of table 1 light silencing plate
Detected result shows:
1, the surperficial ultimate compression strength of the light silencing plate of the present invention's preparation is high, reaches more than the 5.1MPa, is higher than the 3.5Mpa of national standard far away; The counter-bending breaking load of light silencing plate reaches more than the 1.8KPa; Area density is lower than 88.5Kg/m
2, the physicals of the light silencing plate of preparation meets the requirement of building industry industry standard JG/T169-2005 " light lath for building partition wall ".
2, the lightweight sound absorption coefficient of the present invention's preparation reaches 0.79-0.82, and the acoustical behavior National standard GB/T20247-2006 " acoustic absorptivity measurements of acoustic reverberation chamber " of the light silencing plate of the present invention's preparation, the requirement of GB/T16731-1997 " the sound absorbing capabilities classification of building sound absorption product " are described.
Claims (10)
1. a light silencing plate that contains rare earth catalyst is characterized in that comprising following raw material: cement, flyash, terra alba, polypropylene fibre, redispersible latex powder, pearlstone, whipping agent, rare earth catalyst.
2. acoustic panel as claimed in claim 1 is characterized in that the weight part proportioning of said raw material is:
3. acoustic panel as claimed in claim 2 is characterized in that the weight part proportioning of said raw material is selected:
4. like the arbitrary said acoustic panel of claim 1-3, it is characterized in that described whipping agent is an AS class whipping agent.
5. like the arbitrary said acoustic panel of claim 1-3, it is characterized in that described rare earth catalyst is a Lanthanum trichloride.
6. preparation method who contains the light silencing plate of rare earth catalyst as claimed in claim 1 comprises as follows step in sequence:
1) pearlstone, cement, flyash, terra alba, polypropylene fibre, redispersible latex powder, rare earth catalyst are added in the stirrer successively, stir, and in raw material, add entry, process the mixture that stirs;
2) whipping agent and water are placed foaming machine, send in the stirrer after processing foam, stir, make the acoustic panel mortar with mixture;
3) the acoustic panel mortar is joined in the mould through slip casting machine, leave standstill, form the acoustic panel slab;
4) the acoustic panel slab being carried out maintenance handles.
7. the preparation method of acoustic panel as claimed in claim 6 is characterized in that the weight part proportioning of said raw material is:
8. like the preparation method of claim 6 or 7 described acoustic panels, the water ratio that it is characterized in that said mixture is 20-30%.
9. like claim 6 or 7 described preparing methods, it is characterized in that the foamy specific surface area of processing in the step 3) is 250-254cm
2/ cm
2, surface viscosity is 50-55 * 10
-3Pas, foamy height are 181-190mm/0min, 178-180mm/5min, foam time>=5100min.。
10. like claim 6 or 7 described preparing methods, it is characterized in that curing temperature 60-80 ℃ of the processing of maintenance described in the step 5), relative humidity 50-100%, curing time 8-24 hour.
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| CN105440385A (en) * | 2015-12-09 | 2016-03-30 | 安徽创奇乐智能游乐设备有限公司 | Sound-insulation noise-reduction rubber plate and preparation method thereof |
| CN106046475A (en) * | 2016-05-25 | 2016-10-26 | 广州聚注专利研发有限公司 | Polyethylene foam sound-absorbing material and preparation method thereof |
| CN107162524A (en) * | 2017-05-17 | 2017-09-15 | 福建朗宇星环保科技有限公司 | A kind of concrete partition containing nickel clinker and preparation method thereof |
| CN108726928A (en) * | 2018-05-08 | 2018-11-02 | 上海朗创实业发展有限公司 | A kind of gold mine dreg concrete wallboard and preparation method |
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| CN102775180B (en) | 2014-05-07 |
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