CN105503109A - Desulfurized gypsum-based light-weight, high-strength and sound-absorbing plastering material and preparation method thereof - Google Patents
Desulfurized gypsum-based light-weight, high-strength and sound-absorbing plastering material and preparation method thereof Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
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Abstract
The invention relates to a desulfurized gypsum-based light-weight, high-strength and sound-absorbing plastering material and a preparation method thereof, and belongs to the technical field of sound-absorbing building materials. The desulfurized gypsum-based light-weight, high-strength and sound-absorbing plastering material is prepared by the following raw materials in parts by mass: 100 parts of desulfurized building gypsum, 10 to 30 parts of high-strength gypsum, 10 to 30 parts of expanded perlite, 0.3 to 1.5 parts of wood fibers, 0.1 to 1.0 part of dispersant, 0.3 to 0.5 part of retarder, 0.1 to 0.3 part of water retaining agent, and 0.05 to 0.2 part of air entraining agent, wherein the adding amount of water is equal to 55-65% of total mass of the desulfurized building gypsum, the high-strength gypsum, the expanded perlite, the wood fibers, the dispersant, the retarder, the water retaining agent, and the air entraining agent. The desulfurized gypsum-based light-weight, high-strength and sound-absorbing plastering material has the advantages that a mixed gelation material system consists of a small amount of high-strength gypsum and building gypsum which is fired by a byproduct, namely desulfurized gypsum in coal-fired industry; meanwhile, by mixing the fibers and the air entraining agent, the effect of uniformly connecting micropores is realized, so that the sound-absorbing property is realized; the desulfurized gypsum-based light-weight, high-strength and sound-absorbing plastering material is mainly applied to wall surfaces and ceiling surfaces.
Description
Technical field
The present invention relates to acoustic construction field of material technology, be specifically related to a kind of desulfurized gypsum base high-strength light sound absorption plastering material and preparation method thereof.
Background technology
Desulfurated plaster is the solid waste that coal-fired plant's sulfur removal technology brings, and the sulfur removal technology of more than 90% adopts wet type lime/lime stone-gypsum method flue gas desulfurization technique flow process.Lime or the main chemical reaction of limestone-based process as follows:
Lime method: SO
2+ CaO+0.5H
2o → CaSO
30.5H
2o
CaSO
3·0.5H
2O+0.5O
2+1.5H
2O→CaSO
4·2H
2O
Limestone-based process: SO
2+ CaSO
3+ 0.5H
2o → CaSO
30.5H
2o+CO
2
CaSO
3·0.5H
2O+0.5O
2+1.5H
2O→CaSO
4·2H
2O
The main component of desulfurated plaster is terra alba (CaSO
42H
2o), water ratio is high, viscosity is strong, and its potential of hydrogen is suitable with the plaster of paris, in neutral or slightly biased alkalescence.Desulfurated plaster is a kind of by-product gypsum that in chemical gypsum by product, foreign matter content is minimum.Its chemical composition is close with the plaster of paris, and its dihydrate gypsum content is higher than the content of the general plaster of paris, can substitute the plaster of paris and be used, not only protect environment, reduces the exploitation of the plaster of paris, also material benefit more economically.
Noise is that international four overall situation one of are polluted, to the life of people with healthyly all bring negative impact.The place of the high-decibels such as bustling curbside, train, high ferro side and ktv must be unable to do without sound-absorbing material.Sound-absorbing material principal character is hole, and sound wave vibrates in hole, drives air and hole generation frictional heat, consumed energy.The value of sound absorption coefficient α is relevant with incident sound wave frequency, and same material is to the sound wave of different frequency, and its sound absorption coefficient has different values.In engineering, often adopt 125Hz, the arithmetical av of the sound absorption coefficient of the mid-frequency of 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz six octaves represents the average sound absorption coefficient of a certain material (or structure).In engineering, the normal noise reduction coefficient NRC that uses evaluates the sound absorbing capabilities within the scope of language frequency roughly, and this numerical value is the arithmetical av of material at the sound absorption coefficient of 250Hz, 500Hz, 1000Hz, 2000Hz tetra-frequencies, and round is to 0.05.For sound absorbing capabilities, although gypsum material has the large feature of porosity, determine the advantage that it does sound-absorbing material, the sound absorption coefficient of pure plastering is less, does not reach the requirement of sound-absorbing porous material.According to the sound absorbing mechanism of sound-absorbing porous material, add the quantity in air entrapment agent and fiber increase hole and more evenly, sound wave can be made to propagate back and forth in hole, drive air movement, air and material are rubbed, makes acoustic wave energy consumption, reach the effect of sound absorption.
Wood fibre is mixed by different ratios by xylogen, hemicellulose and Mierocrystalline cellulose, is the Common Waste in agricultural, but its a kind of renewable resources especially.China is a large agricultural country, and the materials such as annual stalk often can by concentrated combustion process, not only polluted air, the health of harm people, or a kind of waste of resource.The good wood fibre of Appropriate application not only low-carbon environment-friendly, and reduce product cost, create added value.
Current existing sound-absorbing material is as Chinese patent CN102877564B, and the sound absorption coefficient of absorbent wall is between 0.4 ~ 0.9, and high, normal, basic frequency such as arbitrarily can to adjust at the advantage, but it has 7 Rotating fields, complex process, and cost is high.Chinese patent CN104876490A discloses a kind of Cementitious materials of absorbing noise, adopts spraying application not only to facilitate, and its noise reduction coefficient NRC >=0.60, and acoustically effective is good, but and not mentioned intensity level.Chinese patent CN101289305A discloses the plastering material for inner wall of a kind of cracking resistance, insulation, sound insulation, but does not mention concrete data.Also have a lot of sound absorption patent to be to get on improvement from structure design, and the present invention mainly utilize industrial by-products desulfurated plaster and solid waste wood fibre to go to obtain a kind of lightweight, the high-strength plastering material with good sound absorption effect.
Summary of the invention
Object of the present invention is exactly the defect for prior art, provides a kind of desulfurized gypsum base high-strength light sound absorption plastering material and preparation method thereof.
The technical solution used in the present invention is: a kind of desulfurized gypsum base high-strength light sound absorption plastering material, and described desulfurized gypsum base high-strength light sound absorption plastering material is prepared by mass fraction by following raw materials according:
The add-on of water be desulphurization building gypsum, high strength gypsum, pearlstone, wood fibre, dispersion agent, retardant, water-holding agent, air entrapment agent total mass 55% ~ 65%.
Preferably, described desulphurization building gypsum be desulfurated plaster through 50 DEG C ± 5 DEG C oven dry, then grinding, in the electric furnace of 180 DEG C, calcine 2h and ageing obtains for one week, its quality is as follows, consumptive use of water normal consistence is 55%, over dry ultimate compression strength is 12 ~ 17MPa, and over dry folding strength is 3 ~ 7MPa.
Preferably, described high strength gypsum is commercially available, and its quality is as follows, and consumptive use of water normal consistence is 33 ~ 37%, and over dry ultimate compression strength is 30 ~ 40MPa, 2h folding strength is 4 ~ 7MPa.
Preferably, described pearlstone is perforate, and granularity is less than 3mm, and tap density is 100 ~ 200kg/m
3.
Preferably, described wood fibre is commercially available, and length is less than 6mm, and density is 0.2g/cm
3.
Preferably, the composition of described dispersion agent is the one in polyacrylamide or polyoxyethylene.
Preferably, described retardant is one or more in sodium polyphosphate or Sodium hexametaphosphate 99 or protein-based retardant.
Preferably, described water-holding agent is one or more in ethoxyl methyl cellulose ether or hydroxypropyl methyl cellulose ether or starch ethers.
Preferably, described air entrapment agent is one or more in sodium lauryl sulphate or sodium laurylsulfonate or triterpenoid saponin.
A preparation method for desulfurized gypsum base high-strength light sound absorption plastering material, the steps include:
(1), by load weighted air entrapment agent, water-holding agent, dispersion agent add stirrer, stir out bubble;
(2) desulphurization building gypsum, high strength gypsum, pearlstone, wood fibre and the retardant mixing, will weighed up;
(3), by gained mixture in step (2) add in the stirrer of step (1), start stirrer and stir, stir and close stirrer after 2 ~ 3 minutes.
Ultimate principle of the present invention: desulphurization building gypsum powder, high strength gypsum powder are main gelling material is the main source of desulfurized gypsum base high-strength light sound absorption plastering material intensity.There is certain surface bonding power between wood fibre, can increase resistance to cleavage, and fiber energy open pore, the microporosity of connection allows sound wave constantly vibrate propagation wherein, thus consumed energy, reach acoustically effective.Water cement ratio is very large on hole impact.Too low water cement ratio, causes the poor fluidity of material system, and viscosity is large, the pore foam toughness of generation and ductility deficiency, and low being not enough to of gas pressure intensity struts hole, therefore porosity is low, and noise reduction coefficient is little; Too high water cement ratio, the mobility of system is better, but viscosity is too little, and causing hole is subsided, and porosity is low, and acoustically effective is bad.Gypsum itself has microdilatancy characteristic, adds the lock water-based of fiber, can reduce the dehydration shrinkage of coat of plaster, thus avoid hollowing, cracking.
Desulfurized gypsum base high-strength light sound absorption plastering material of the present invention has following advantages: noise reduction coefficient is greater than 0.4; Density is less than 1000kg/m
3, folding strength is greater than 3.0MPa, and ultimate compression strength is greater than 6.0MPa, and cohesive strength is greater than 0.5MPa.Reduce labor strength, workability promotes; Bonding force by force, not hollowing cracking; Intensity is high, splitting resistance good; Achieve the recycling of industrial by-product desulfurated plaster and agricultural wastes wood fibre, not only environmental protection but also economic.
The plaster of Paris that the present invention is fired by coal-fired industry by-product desulfurated plaster and a small amount of high strength gypsum form mixing cementitious material system.Mix fiber simultaneously and reach with air entrapment agent the effect being evenly communicated with micropore, thus there is sound absorbing capabilities, be mainly used in metope and ceiling face.With industrial by-products desulfurated plaster, for main raw material, not only cost is low, and meets National Sustainable Development Strategies and environment protection requirement, and the useless rate of profit is greater than 60%.The light-weight aggregate of a lot of uniform micropore and filling makes the density of plastering material decline, and labor strength reduces.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail, is convenient to be well understood to the present invention, but they do not form restriction to the present invention.
In order to understand the present invention better, illustrate content of the present invention further below in conjunction with embodiment.
Embodiment 1: a kind of desulfurized gypsum base high-strength light sound absorption plastering material, by desulphurization building gypsum 100 parts; High strength gypsum 10 parts; Pearlstone 10 parts; Wood fibre 1.0 parts; Dispersion agent 0.9 part; Retardant 0.3 part; Water-holding agent 0.2 part; Air entrapment agent 0.15 part.Its processing step is for being first 0.60 measure water consumption and add in stirrer according to water cement ratio, by load weighted air entrapment agent sodium lauryl sulphate, water-holding agent ethoxyl methyl cellulose ether, dispersion agent polyacrylamide adds stirrer, stir out bubble, the desulphurization building gypsum will weighed up again, high strength gypsum, pearlstone, wood fibre and retardant (by sodium polyphosphate and Sodium hexametaphosphate 99 in mass ratio 1:1 be made into) mixing, add again in stirrer, start stirrer to stir, stir and close stirrer after 2 ~ 3 minutes, wherein, described desulphurization building gypsum is that desulfurated plaster is through 55 DEG C of oven dry, grinding again, 2h is calcined and ageing obtains for one week in the electric furnace of 180 DEG C, its quality is as follows, consumptive use of water normal consistence is 55%, over dry ultimate compression strength is 12MPa, over dry folding strength is 3MPa, described high strength gypsum quality is as follows, consumptive use of water normal consistence is 33%, over dry ultimate compression strength is 30MPa, 2h folding strength is 4MPa, described pearlstone is perforate, granularity is 3mm, tap density is 100kg/m
3, the length of described wood fibre is 6mm, and density is 0.2g/cm
3.This experiment adopts the sound absorption coefficient of standing-wave-tube method test material.The noise reduction coefficient of this desulfurized gypsum base high-strength light sound absorption plastering material is 0.43, and Absolute Dry Density is 950kg/m
3, the anti-folding of the anti-folding of over dry is 4.1MPa, and over dry ultimate compression strength is 12.9MPa, and over dry tensile bond strength is 0.5MPa, and water retention is 80%.
Embodiment 2: a kind of desulfurized gypsum base high-strength light sound absorption plastering material, by desulphurization building gypsum 100 parts; High strength gypsum 20 parts; Pearlstone 20 parts; Wood fibre 0.8 part; Dispersion agent 0.6 part; Retardant 0.3 part; Water-holding agent 0.2 part; Air entrapment agent 0.15 part.Its processing step is for being first 0.60 measure water consumption and add in stirrer according to water cement ratio, by load weighted air entrapment agent sodium laurylsulfonate, water-holding agent hydroxypropyl methyl cellulose ether, dispersion agent polyoxyethylene adds stirrer, stir out bubble, the desulphurization building gypsum will weighed up again, high strength gypsum, pearlstone, wood fibre and retardant (protein-based retardant) mixing, add again in stirrer, start stirrer to stir, stir and close stirrer after 2 ~ 3 minutes, wherein, described desulphurization building gypsum is that desulfurated plaster is through 45 DEG C of oven dry, grinding again, 2h is calcined and ageing obtains for one week in the electric furnace of 180 DEG C, its quality is as follows, consumptive use of water normal consistence is 55%, over dry ultimate compression strength is 17MPa, over dry folding strength is 7MPa, described high strength gypsum quality is as follows, consumptive use of water normal consistence is 37%, over dry ultimate compression strength is 40MPa, 2h folding strength is 7MPa, described pearlstone is perforate, granularity is 2mm, tap density is 200kg/m
3, the length of described wood fibre is 5mm, and density is 0.2g/cm
3.This experiment adopts the sound absorption coefficient of standing-wave-tube method test material.The noise reduction coefficient of this desulfurized gypsum base high-strength light sound absorption plastering material is 0.46, and Absolute Dry Density is 900kg/m
3, the anti-folding of the anti-folding of over dry is 3.8MPa, and over dry ultimate compression strength is 11.4MPa, and over dry tensile bond strength is 0.5MPa, and water retention is 75%.
Embodiment 3: a kind of desulfurized gypsum base high-strength light sound absorption plastering material, by desulphurization building gypsum 100 parts; High strength gypsum 30 parts; Pearlstone 30 parts; Wood fibre 0.6 part; Dispersion agent 0.3 part; Retardant 0.3 part; Water-holding agent 0.2 part; Air entrapment agent 0.15 part.Its processing step is for being first 0.60 measure water consumption and add in stirrer according to water cement ratio, by load weighted air entrapment agent triterpenoid saponin, water-holding agent starch ethers, dispersion agent polyacrylamide adds stirrer, stir out bubble, the desulphurization building gypsum will weighed up again, high strength gypsum, pearlstone, wood fibre and the mixing of retardant sodium polyphosphate, add again in stirrer, start stirrer to stir, stir and close stirrer after 2 ~ 3 minutes, wherein, described desulphurization building gypsum is that desulfurated plaster is through 52 DEG C of oven dry, grinding again, 2h is calcined and ageing obtains for one week in the electric furnace of 180 DEG C, its quality is as follows, consumptive use of water normal consistence is 55%, over dry ultimate compression strength is 15MPa, over dry folding strength is 4MPa, described high strength gypsum quality is as follows, consumptive use of water normal consistence is 34%, over dry ultimate compression strength is 33MPa, 2h folding strength is 5MPa, described pearlstone is perforate, granularity is 1mm, tap density is 150kg/m
3, the length of described wood fibre is 4mm, and density is 0.2g/cm
3.This experiment adopts the sound absorption coefficient of standing-wave-tube method test material.The noise reduction coefficient of this desulfurized gypsum base high-strength light sound absorption plastering material is 0.48, and Absolute Dry Density is 860kg/m
3, over dry folding strength is 3.7MPa, and over dry ultimate compression strength is 9.8MPa, and over dry tensile bond strength is 0.6MPa, and water retention is 72%.
Embodiment 4: a kind of desulfurized gypsum base high-strength light sound absorption plastering material, by desulphurization building gypsum 100 parts; High strength gypsum 30 parts; Pearlstone 10 parts; Wood fibre 1.5 parts; Dispersion agent 1.0 parts; Retardant 0.4 part; Water-holding agent 0.1 part; Air entrapment agent 0.2 part.Its processing step is for being first 0.55 measure water consumption and add in stirrer according to water cement ratio, by load weighted air entrapment agent (by sodium lauryl sulphate and sodium laurylsulfonate 1:8 mixing in mass ratio), water-holding agent (by ethoxyl methyl cellulose ether and hydroxypropyl methyl cellulose ether 1:5 mixing in mass ratio), dispersion agent polyacrylamide adds stirrer, stir out bubble, the desulphurization building gypsum will weighed up again, high strength gypsum, pearlstone, wood fibre and the mixing of retardant Sodium hexametaphosphate 99, add again in stirrer, start stirrer to stir, stir and close stirrer after 2 ~ 3 minutes, wherein, described desulphurization building gypsum is that desulfurated plaster is through 52 DEG C of oven dry, grinding again, 2h is calcined and ageing obtains for one week in the electric furnace of 180 DEG C, its quality is as follows, consumptive use of water normal consistence is 55%, over dry ultimate compression strength is 15MPa, over dry folding strength is 4MPa, described high strength gypsum quality is as follows, consumptive use of water normal consistence is 34%, over dry ultimate compression strength is 33MPa, 2h folding strength is 5MPa, described pearlstone is perforate, granularity is 1mm, tap density is 150kg/m
3, the length of described wood fibre is 4mm, and density is 0.2g/cm
3.This experiment adopts the sound absorption coefficient of standing-wave-tube method test material.The noise reduction coefficient of this desulfurized gypsum base high-strength light sound absorption plastering material is 0.44, and Absolute Dry Density is 890kg/m
3, over dry folding strength is 3.5MPa, and over dry ultimate compression strength is 8.8MPa, and over dry tensile bond strength is 0.5MPa, and water retention is 70%.
Embodiment 5: a kind of desulfurized gypsum base high-strength light sound absorption plastering material, by desulphurization building gypsum 100 parts; High strength gypsum 10 parts; Pearlstone 30 parts; Wood fibre 0.3 part; Dispersion agent 0.1 part; Retardant 0.4 part; Water-holding agent 0.3 part; Air entrapment agent 0.05 part.Its processing step is for being first 0.60 measure water consumption and add in stirrer according to water cement ratio, by load weighted air entrapment agent sodium lauryl sulphate, water-holding agent ethoxyl methyl cellulose ether, dispersion agent polyacrylamide adds stirrer, stir out bubble, the desulphurization building gypsum will weighed up again, high strength gypsum, pearlstone, wood fibre and the mixing of retardant sodium polyphosphate, add again in stirrer, start stirrer to stir, stir and close stirrer after 2 ~ 3 minutes, wherein, described desulphurization building gypsum is that desulfurated plaster is through 52 DEG C of oven dry, grinding again, 2h is calcined and ageing obtains for one week in the electric furnace of 180 DEG C, its quality is as follows, consumptive use of water normal consistence is 55%, over dry ultimate compression strength is 15MPa, over dry folding strength is 4MPa, described high strength gypsum quality is as follows, consumptive use of water normal consistence is 34%, over dry ultimate compression strength is 33MPa, 2h folding strength is 5MPa, described pearlstone is perforate, granularity is 1mm, tap density is 150kg/m
3, the length of described wood fibre is 4mm, and density is 0.2g/cm
3.This experiment adopts the sound absorption coefficient of standing-wave-tube method test material.The noise reduction coefficient of this desulfurized gypsum base high-strength light sound absorption plastering material is 0.42, and Absolute Dry Density is 880kg/m
3, over dry folding strength is 3.0MPa, and over dry ultimate compression strength is 10.1MPa, and over dry tensile bond strength is 0.6MPa, and water retention is 78%.
Embodiment 6: a kind of desulfurized gypsum base high-strength light sound absorption plastering material, by desulphurization building gypsum 100 parts; High strength gypsum 15 parts; Pearlstone 20 parts; Wood fibre 0.3 part; Dispersion agent 0.2 part; Retardant 0.5 part; Water-holding agent 0.3 part; Air entrapment agent 0.05 part.Its processing step is for being first 0.65 measure water consumption and add in stirrer according to water cement ratio, by load weighted air entrapment agent sodium lauryl sulphate, water-holding agent ethoxyl methyl cellulose ether, dispersion agent polyoxyethylene adds stirrer, stir out bubble, the desulphurization building gypsum will weighed up again, high strength gypsum, pearlstone, wood fibre and the mixing of retardant Sodium hexametaphosphate 99, add again in stirrer, start stirrer to stir, stir and close stirrer after 2 ~ 3 minutes, wherein, described desulphurization building gypsum is that desulfurated plaster is through 45 DEG C of oven dry, grinding again, 2h is calcined and ageing obtains for one week in the electric furnace of 180 DEG C, its quality is as follows, consumptive use of water normal consistence is 52%, over dry ultimate compression strength is 13MPa, over dry folding strength is 7MPa, described high strength gypsum quality is as follows, consumptive use of water normal consistence is 37%, over dry ultimate compression strength is 40MPa, 2h folding strength is 7MPa, described pearlstone is perforate, granularity is 2mm, tap density is 200kg/m
3, the length of described wood fibre is 5mm, and density is 0.2g/cm
3.This experiment adopts the sound absorption coefficient of standing-wave-tube method test material.The noise reduction coefficient of this desulfurized gypsum base high-strength light sound absorption plastering material is 0.41, and Absolute Dry Density is 940kg/m
3, over dry folding strength is 3.3MPa, and over dry ultimate compression strength is 10.7MPa, and over dry tensile bond strength is 0.6MPa, and water retention is 72%.
The content that this specification sheets is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Claims (10)
1. a desulfurized gypsum base high-strength light sound absorption plastering material, is characterized in that, described desulfurized gypsum base high-strength light sound absorption plastering material is prepared by mass fraction by following raw materials according:
The add-on of water be desulphurization building gypsum, high strength gypsum, pearlstone, wood fibre, dispersion agent, retardant, water-holding agent, air entrapment agent total mass 55% ~ 65%.
2. desulfurized gypsum base high-strength light sound absorption plastering material according to claim 1, it is characterized in that, described desulphurization building gypsum is that desulfurated plaster is through 50 DEG C ± 5 DEG C oven dry, grinding again, in the electric furnace of 180 DEG C, calcine 2h and ageing obtains for one week, its quality is as follows, consumptive use of water normal consistence is 55%, over dry ultimate compression strength is 12 ~ 17MPa, and over dry folding strength is 3 ~ 7MPa.
3. desulfurized gypsum base high-strength light sound absorption plastering material according to claim 1, it is characterized in that, described high strength gypsum quality is as follows, and consumptive use of water normal consistence is 33 ~ 37%, and over dry ultimate compression strength is 30 ~ 40MPa, 2h folding strength is 4 ~ 7MPa.
4. desulfurized gypsum base high-strength light sound absorption plastering material according to claim 1, it is characterized in that, described pearlstone is perforate, and granularity is less than 3mm, and tap density is 100 ~ 200kg/m
3.
5. desulfurized gypsum base high-strength light sound absorption plastering material according to claim 1, it is characterized in that, the length of described wood fibre is less than 6mm, and density is 0.2g/cm
3.
6. desulfurized gypsum base high-strength light according to claim 1 sound absorption plastering material, is characterized in that, the composition of described dispersion agent is the one in polyacrylamide or polyoxyethylene.
7. desulfurized gypsum base high-strength light according to claim 1 sound absorption plastering material, is characterized in that, described retardant is one or more in sodium polyphosphate or Sodium hexametaphosphate 99 or protein-based retardant.
8. desulfurized gypsum base high-strength light according to claim 1 sound absorption plastering material, is characterized in that, described water-holding agent is one or more in ethoxyl methyl cellulose ether or hydroxypropyl methyl cellulose ether or starch ethers.
9. desulfurized gypsum base high-strength light according to claim 1 sound absorption plastering material, is characterized in that, described air entrapment agent is one or more in sodium lauryl sulphate or sodium laurylsulfonate or triterpenoid saponin.
10. the preparation method of desulfurized gypsum base high-strength light sound absorption plastering material according to claim 1, is characterized in that, the steps include:
(1), by load weighted air entrapment agent, water-holding agent, dispersion agent add stirrer, stir out bubble;
(2) desulphurization building gypsum, high strength gypsum, pearlstone, wood fibre and the retardant mixing, will weighed up;
(3), by gained mixture in step (2) add in the stirrer of step (1), start stirrer and stir, stir and close stirrer after 2 ~ 3 minutes.
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| CN108530009A (en) * | 2018-07-06 | 2018-09-14 | 申志斌 | A kind of inner wall of building lightweight plastering gupsum |
| CN111268987A (en) * | 2020-01-22 | 2020-06-12 | 贵州开磷磷石膏综合利用有限公司 | Light sandwich paperless gypsum board containing high-temperature phosphogypsum, and preparation method and application thereof |
| CN112777993A (en) * | 2021-01-11 | 2021-05-11 | 湖北工业大学 | Heat-preservation foaming plastering gypsum based on fluorgypsum and preparation method thereof |
| CN113264704A (en) * | 2021-07-08 | 2021-08-17 | 山西佳维新材料股份有限公司 | Alkali-free fluorine-free chlorine-free liquid accelerator and preparation method and application thereof |
| CN114276107A (en) * | 2021-12-24 | 2022-04-05 | 泰山石膏有限公司 | Quick-calcined light plastering gypsum and preparation method thereof |
| CN116514571A (en) * | 2022-12-21 | 2023-08-01 | 咸阳陶瓷研究设计院有限公司 | Method for preparing inorganic sound absorbing material by using lithium slag |
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| CN111268987A (en) * | 2020-01-22 | 2020-06-12 | 贵州开磷磷石膏综合利用有限公司 | Light sandwich paperless gypsum board containing high-temperature phosphogypsum, and preparation method and application thereof |
| CN112777993A (en) * | 2021-01-11 | 2021-05-11 | 湖北工业大学 | Heat-preservation foaming plastering gypsum based on fluorgypsum and preparation method thereof |
| CN113264704A (en) * | 2021-07-08 | 2021-08-17 | 山西佳维新材料股份有限公司 | Alkali-free fluorine-free chlorine-free liquid accelerator and preparation method and application thereof |
| CN114276107A (en) * | 2021-12-24 | 2022-04-05 | 泰山石膏有限公司 | Quick-calcined light plastering gypsum and preparation method thereof |
| CN116514571A (en) * | 2022-12-21 | 2023-08-01 | 咸阳陶瓷研究设计院有限公司 | Method for preparing inorganic sound absorbing material by using lithium slag |
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