CN105837149B - A kind of original state desulfurated plaster granular polystyrene light heat insulation material and preparation method thereof - Google Patents
A kind of original state desulfurated plaster granular polystyrene light heat insulation material and preparation method thereof Download PDFInfo
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- CN105837149B CN105837149B CN201610179845.0A CN201610179845A CN105837149B CN 105837149 B CN105837149 B CN 105837149B CN 201610179845 A CN201610179845 A CN 201610179845A CN 105837149 B CN105837149 B CN 105837149B
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- 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
- C04B28/14—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 calcium sulfate cements
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention provides a kind of original state desulfurated plaster granular polystyrene light heat insulation material, counts in parts by weight, its raw material is composed of the following components：34~54 parts of wet desulphurization gypsum, 6~31 parts of dry desulfurization gypsum, 20~29 parts of slag micropowder, 4~9 parts of cement, 4~7 parts of sierozem power, 0.60~0.67 part of water reducer, 1.0~1.7 parts of alkali-activator, 0.3~0.9 part of cellulose ether, 0.5~0.9 part of redispersable latex powder, 0.2~0.4 part of polypropylene fibre, 110~117 parts of water；Also include the granular polystyrene counted by volume, the granular polystyrene volume accounts for 81%~85.5% volume fraction of gelling system powder, and the gelling system powder includes wet desulphurization gypsum, dry desulfurization gypsum, slag micropowder, cement, sierozem power, cellulose ether and redispersable latex powder.Institute's prepared material has the characteristics that insulation, cracking resistance, environmental protection, energy-conservation, construction is simple, cost are cheap.
Description
Technical field
The present invention relates to building material technical field, more particularly to a kind of original state desulfurated plaster granular polystyrene light thermal-insulation material
The preparation method of material.
Background technology
Desulfurated plaster (FGD Gypsum) is caused flue gas SO after being burnt to sulfurous fuels (coal, oil etc.)2Carry out desulfurization
Industry by-product gypsum obtained from purified treatment, main component are CaSO4·2H2O.As China controls and cut down SO2Discharge force
Degree continues to increase, and boiler of power plant flue gas desulfurization has been enter into Rapid development stage, but just nationwide substantial amounts of industrial waste gypsum
For, only a small amount of waste gypsum is utilized, and it is mainly what is carried out by the way of semi-hydrated gypsum is sintered into using form,
It is most of still based on outdoor stacking, still without realize it is a large amount of, efficiently, the comprehensive utilization of resources approach of low energy consumption.Nowadays it is big
The problem of how amount desulfurated plaster is disposed, it has also become restrict an important factor for flue gas desulfurization technique is promoted.
China is energy resource consumption big country, and building energy conservation has become the needs for saving the energy and socio-economic development, building
Heat preserving and insulating material is played an important role in building energy conservation, if can be heat-insulated for preparing building heat preservation by desulfurized gesso of flue gas
Material, will be a creativity and innovation with great social effect.
The content of the invention
It is an object of the invention to provide a kind of preparation method of original state desulfurated plaster granular polystyrene light heat insulation material, institute
Prepared material has the characteristics that insulation, cracking resistance, environmental protection, energy-conservation, construction is simple, cost are cheap.
The technical scheme is that：A kind of original state desulfurated plaster granular polystyrene light heat insulation material, is counted in parts by weight,
Its raw material is composed of the following components：
34~54 parts of wet desulphurization gypsum, 6~31 parts of dry desulfurization gypsum, 20~29 parts of slag micropowder, 4~9 parts of cement,
4~7 parts of sierozem power, 0.60~0.67 part of water reducer, 1.0~1.7 parts of alkali-activator, 0.3~0.9 part of cellulose ether can be again
0.5~0.9 part of dispersed latex powder, 0.2~0.4 part of polypropylene fibre, 110~117 parts of water；
Also include the granular polystyrene counted by volume, the granular polystyrene volume account for gelling system powder 81%~
85.5% volume fraction, the gelling system powder include wet desulphurization gypsum, dry desulfurization gypsum, slag micropowder, cement, grey calcium
Powder, cellulose ether and redispersable latex powder.
Further, the attachment water content of described wet desulphurization gypsum is 7%~13%；Described dry desulfurization gypsum
Density be 2.3~2.55g/cm3。
Further, described 300~460m of slag micropowder specific surface area2/kg。
Further, described cement is commercially available 52.5 cement；Described sierozem power is sierozem power purchased in market, fineness 310
~430 mesh.
Further, described water reducer is naphthalenesulfonate formaldehyde condensation compound, sulfonated melamine compound resin or poly- carboxylic
One kind in sour water reducer.
Further, described alkali-activator is waterglass, and modulus is 1.2~1.9.
Further, ＜ 4% more than the 5mm mesh screens of described granular polystyrene, bulk density are 10~18kg/m3。
Further, described polypropylene fibre length is 6mm~12mm, a diameter of 15~39 μm, and modulus of elasticity is
2900~3680MPa.
Further, described cellulose ether main component is hydroxypropyl methyl cellulose, viscosity is 100000~
200000cps, white powder；The main active of described redispersable latex powder is ethylene-vinyl acetate copolymer, its
Content is more than 95wt%.
The present invention also provides a kind of method for preparing original state desulfurated plaster granular polystyrene light heat insulation material, and specific steps are such as
Under：Raw material are weighed and poured into agitator for cement mortar by predetermined ratio, first stir 1~2 slowly with 130-150r/min rotating speed
Minute, then stirred soon 2~4 minutes with 280-290r/min rotating speed, the compound slurry to stir is then injected into property to be measured
Simultaneously vibration moulding, is then uniformly plugged and pounded 23-27 times by the hand of spiral, is from outside to inside with tamper in sample mould required by energy
Prevent slurry from leaving hole, while inserted for several times along die wall with putty knife, the slurry being higher by is pruned along die trial top surface and uses trowel
It is floating, 17-19 hours are stood in laboratory conditions, it is small that sample is then put into steam-cured 20-22 in 60 DEG C of steam curing box
When be stripped, then 20 ± 2 DEG C of temperature, relative humidity be more than 95% standard curing under the conditions of maintenance to age to be measured, obtain
To sample to be tested.
Beneficial effect：
Desulfurized gesso of flue gas is used to prepare building energy-saving heat-insulating material, is a significantly creativity and innovation.I
State is the relatively deficient country of the energy, and building energy consumption accounts for quite a few of China's total energy consumption, light heat insulation material, particularly
Light wall thermal insulating material is prepared using industrial waste gypsum, is the new construction material that Minstry of Housing and Urban-Rural Development of People Republic of China (MOHURD) promotes.Original state takes off
The successful preparation of sulphur gypsum granular polystyrene light heat insulation material, meets China's materials for wall reform policy, has effectively played saving
The effect of the energy, environmental protection.Meanwhile for being used in insulation material by the non-calcinated gypsum of industry, substantially increase work
The utilization of industry waste gypsum, reduces processing cost, has good development prospect.
The present invention is using desulfurated plaster as main study subject, by adding a certain amount of active admixture slag and cement,
And in the presence of exciting agent, the binder materials of function admirable is modified as, then using granular polystyrene as heat preserving aggregate, add
Cellulose ether, redispersable latex powder modifying agent and fibre reinforced materials, by thoroughgoing and painstaking research, it has been made with guarantor
The heat insulating material of the features such as temperature, cracking resistance, environmental protection, energy-conservation, construction is simple.Wherein heat preserving aggregate is to determine material insulation
The principal element of performance, cementing component then determine that performance, the fibre fractionation such as its conformability and intensity (resistance to compression, adhesion strength) can be big
The big cracking resistance for improving insulation material, improves its pliability, shock resistance and the performance such as antifatigue, cellulose ether and redispersible
Emulsion powder-modified dose then has a major impact to each of insulation material workability, cementitious matter and heat preserving aggregate to compatibility, only
These components carry out proportioning according to suitable ratio and just can guarantee that insulation material has excellent combination property.The present invention is solid
The comprehensive utilization of body discarded object desulfurated plaster opens a new way, has good economy, society and environmental benefit.
Granted patent CN201310660955 " a kind of preparation method of the high-strength binder materials of gypsum base " is also provided for I
One method that binder materials is prepared for using original state desulfurated plaster, but this method only there is provided how one utilize original
Shape desulfurated plaster prepares the method with good hydraulic cementing materials.This patent then there is provided one kind and utilize original state desulfurization
Gypsum prepares the method with the cheap light heat insulation material of insulation, cracking resistance, environmental protection, energy-conservation, construction is simple, cost.
The patent is definitely not in the basic just getable by simple theoretical and experiment deduction of previous patent.It is well known that polyphenyl
Particle surface is hydrophobicity, how granular polystyrene surface is modified as into hydrophily and is allowed to compatible with binder materials slurry, how to have
Some row technical problems of the big grade of linear contraction, are required for carrying out substantial amounts of theory and experiment are ground after effect solution addition heat preserving aggregate
Study carefully.By my substantial amounts of experimental study, finally it is determined that a kind of prepared using original state desulfurated plaster of the present invention is had
The method of the light heat insulation material of the features such as environmental protection, energy-conservation, construction is simple.
Brief description of the drawings
Fig. 1 is the preparation technology figure of original state desulfurated plaster granular polystyrene light heat insulation material.
Embodiment
The present invention is further illustrated below by embodiment.
Wet apparent density, dry density, mechanical property, compression shear adhesion strength, the measure of linear shrinkage：Conserve to age
Sample dries to constant weight at 65 DEG C, by JG 158-2004《Polyphenyl granule exterior wall outer heat preservation system》In relevant regulations in 6.5 enter
OK.
Determination of conductive coefficients：Carried out using DRE-2C heat conduction coefficient testers, the heat conduction coefficient tester is to use transient state
Plane heat source method (Transient Plane Source Method, TPS), based on TPS transient state flat heat source technologies, uses Hot
Thermal conductivity measuring apparatus of the Disk as probe.
Embodiment 1
A kind of original state desulfurated plaster granular polystyrene light heat insulation material, wherein original state desulfurated plaster include wet desulphurization gypsum
With dry desulfurization gypsum, the raw material of the insulation material is composed of the following components, and in addition to granular polystyrene is volume ratio, other components are used
Amount is parts by weight：Adhere to 54 parts of the wet desulphurization gypsum that water content is 7%, density 2.36g/cm3Dry desulfurization gypsum 6
Part, specific surface area 300m227 parts of/kg slag micropowder, 52.5 9 parts of cement, fineness be 310 mesh 4 parts of sierozem power, naphthalene sulfonic acids
0.67 part of salt formaldehyde condensation products water reducer, modulus are 1.2 1.6 parts of waterglass, and viscosity is 100000cps cellulose ether 0.5
Part, 0.8 part of redispersable latex powder, length 6mm 0.2 part of polypropylene fibre, 115 parts of water, bulk density 12kg/m3It is poly-
Benzene particle accounts for 82.6% (volume fraction) of gelling system powder, and gelling system powder includes wet desulphurization gypsum, dry desulfurization stone
Cream, slag micropowder, cement, sierozem power, cellulose ether and redispersable latex powder.
Embodiment 2
A kind of original state desulfurated plaster granular polystyrene light heat insulation material, wherein original state desulfurated plaster include wet desulphurization gypsum
With dry desulfurization gypsum, the raw material of the insulation material is composed of the following components, and in addition to granular polystyrene is volume ratio, other components are used
Amount is parts by weight：Adhere to 45 parts of the wet desulphurization gypsum that water content is 11%, density 2.41g/cm3Dry desulfurization gypsum 21
Part, specific surface area 390m222 parts of/kg slag micropowders, 52.5 7 parts of cement, 5 parts of 430 mesh sierozem power of fineness, naphthalene sulphonate formaldehyde
0.61 part of condensation product water reducer, 1.3 parts of the waterglass of modulus 1.7, viscosity are 200000cps 0.3 part of cellulose ether, can be divided again
Dissipate 0.5 part of latex powder, 0.2 part of length 12mm polypropylene fibre, 113 parts of water, bulk density 10kg/m3Granular polystyrene account for
81.5% (volume fraction) of gelling system powder, it is micro- that gelling system powder includes wet desulphurization gypsum, dry desulfurization gypsum, slag
Powder, cement, sierozem power, cellulose ether and redispersable latex powder.
Embodiment 3
A kind of original state desulfurated plaster granular polystyrene light heat insulation material, wherein original state desulfurated plaster include wet desulphurization gypsum
With dry desulfurization gypsum, the raw material of the insulation material is composed of the following components, and in addition to granular polystyrene is volume ratio, other components are used
Amount is parts by weight：Adhere to 34 parts of the wet desulphurization gypsum that water content is 9%, density 2.50g/cm3Dry desulfurization gypsum 28
Part, specific surface area 430m226 parts of/kg slag micropowders, 52.5 5 parts of cement, 7 parts of 410 mesh sierozem power of fineness, naphthalene sulphonate formaldehyde
0.63 part of condensation product water reducer, 1.4 parts of the waterglass of modulus 1.9, the cellulose ether that viscosity is 100000cps are 0.5 part, can be again
0.9 part of dispersed latex powder, 0.4 part of length 6mm polypropylene fibre, 111 parts of water, bulk density 16kg/m3Granular polystyrene
83.5% (volume fraction) of gelling system powder is accounted for, gelling system powder includes wet desulphurization gypsum, dry desulfurization gypsum, slag
Micro mist, cement, sierozem power, cellulose ether and redispersable latex powder.
Embodiment 4
A kind of original state desulfurated plaster granular polystyrene light heat insulation material, wherein original state desulfurated plaster include wet desulphurization gypsum
With dry desulfurization gypsum, the raw material of the insulation material is composed of the following components, and in addition to granular polystyrene is volume ratio, other components are used
Amount is parts by weight：Adhere to 39 parts of the wet desulphurization gypsum that water content is 13%, density 2.55g/cm3Dry desulfurization gypsum 31
Part, specific surface area 460m220 parts of/kg slag micropowders, 52.5 4 parts of cement, 6 parts of 370 mesh sierozem power of fineness, naphthalene sulphonate formaldehyde
0.66 part of condensation product water reducer, 1.7 parts of the waterglass of modulus 1.5, viscosity are 200000cps 0.5 part of cellulose ether, can be divided again
Dissipate 0.7 part of latex powder, 0.3 part of length 12mm polypropylene fibre, 110 parts of water, bulk density 18kg/m3Granular polystyrene account for
85.5% (volume fraction) of gelling system powder, it is micro- that gelling system powder includes wet desulphurization gypsum, dry desulfurization gypsum, slag
Powder, cement, sierozem power, cellulose ether and redispersable latex powder.
Embodiment 5
A kind of original state desulfurated plaster granular polystyrene light heat insulation material, wherein original state desulfurated plaster include wet desulphurization gypsum
With dry desulfurization gypsum, the raw material of the insulation material is composed of the following components, and in addition to granular polystyrene is volume ratio, other components are used
Amount is parts by weight：Adhere to 36 parts of the wet desulphurization gypsum that water content is 11%, density 2.30g/cm3Dry desulfurization gypsum 23
Part, specific surface area 400m229 parts of/kg slag micropowders, 52.5 6 parts of cement, 6 parts of 330 mesh sierozem power of fineness, naphthalene sulfonate first
0.60 part of aldehyde condensate water reducer, 1.0 parts of the waterglass of modulus 1.6, viscosity be 100000cps 0.9 part of cellulose ether, can be again
0.4 part of the polypropylene fibre of 0.8 part of dispersed latex powder, length 6mm, 117 parts of water, bulk density 14kg/m3Granular polystyrene
81% (volume fraction) of gelling system powder is accounted for, it is micro- that gelling system powder includes wet desulphurization gypsum, dry desulfurization gypsum, slag
Powder, cement, sierozem power, cellulose ether and redispersable latex powder.
The preparation method of nano modification cement described in embodiment 1- embodiments 5, comprises the following steps：
Raw material are weighed and poured into agitator for cement mortar by predetermined ratio, first stir 1~2 slowly with 140r/min rotating speed
Minute, then stirred soon 2~4 minutes with 285r/min rotating speed, the compound slurry to stir is then injected into performance institute to be measured
It is required that sample mould in and vibration moulding, then uniformly plugged and pounded by the hand of spiral 25 times from outside to inside with tamper, to prevent from expecting
Slurry leaves hole, while is inserted for several times along die wall with putty knife, and the slurry being higher by is pruned along die trial top surface and uses trowel floating,
18 hours are stood under laboratory condition, then sample is put into steam-cured 21 hours in 60 DEG C of steam curing box and is stripped, Ran Hou
Maintenance obtains sample to be tested to age to be measured under the conditions of 20 ± 2 DEG C of temperature, the standard curing that relative humidity is more than 95%.Its
Specific preparation technology is as shown in Figure 1.Relevant parameter test result is as shown in table 1.
Table 1
The properties that table 1 surveys original state desulfurated plaster granular polystyrene light heat insulation material meet standard JG 158-2004
《Glue powder polyphenyl granule exterior wall outer heat preservation system》The requirement of correlated performance, the present invention, which has opened up one and exempts from original state using discarded object, to be taken off
Sulphur gypsum prepare with insulation, cracking resistance, environmental protection, energy-conservation, construction is simple, lower-price characteristic heat insulating material new way
Footpath.The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any to be familiar with
Those skilled in the art disclosed herein technical scope in, without the change that creative work is expected or can replace
Change, should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be limited with claims
Protection domain be defined.
Claims (9)
- A kind of 1. original state desulfurated plaster granular polystyrene light heat insulation material, it is characterised in that count in parts by weight, its raw material by with The following group packet into：34~54 parts of wet desulphurization gypsum, 6~31 parts of dry desulfurization gypsum, 20~29 parts of slag micropowder, 4~9 parts of cement, grey calcium 4~7 parts of powder, 0.60~0.67 part of water reducer, 1.0~1.7 parts of alkali-activator, 0.3~0.9 part of cellulose ether are redispersible 0.5~0.9 part of latex powder, 0.2~0.4 part of polypropylene fibre, 110~117 parts of water；Also include the granular polystyrene counted by volume, the granular polystyrene volume accounts for 81%~85.5% body of gelling system powder Product rate, the gelling system powder include wet desulphurization gypsum, dry desulfurization gypsum, slag micropowder, cement, sierozem power, fiber Plain ether and redispersable latex powder；The attachment water content of described wet desulphurization gypsum is 7%~13%；The density of described dry desulfurization gypsum be 2.3~ 2.55g/cm3。
- 2. original state desulfurated plaster granular polystyrene light heat insulation material according to claim 1, it is characterised in that：Described ore deposit 300~460m of slag micro mist specific surface area2/kg。
- 3. original state desulfurated plaster granular polystyrene light heat insulation material according to claim 1, it is characterised in that：Described water Mud is commercially available 52.5 cement；Described sierozem power is sierozem power purchased in market, and fineness is 310~430 mesh.
- 4. original state desulfurated plaster granular polystyrene light heat insulation material according to claim 1, it is characterised in that：Described subtracts Aqua is one kind in naphthalenesulfonate formaldehyde condensation compound, sulfonated melamine compound resin or polycarboxylate water-reducer.
- 5. original state desulfurated plaster granular polystyrene light heat insulation material according to claim 1, it is characterised in that：Described alkali Property exciting agent be waterglass, modulus be 1.2~1.9.
- 6. original state desulfurated plaster granular polystyrene light heat insulation material according to claim 1, it is characterised in that：Described is poly- ＜ 4% more than the 5mm mesh screens of benzene particle, bulk density are 10~18kg/m3。
- 7. original state desulfurated plaster granular polystyrene light heat insulation material according to claim 1, it is characterised in that：Described is poly- Tacryl length is 6mm~12mm, and a diameter of 15~39 μm, modulus of elasticity is 2900~3680MPa.
- 8. original state desulfurated plaster granular polystyrene light heat insulation material according to claim 1, it is characterised in that：Described fibre It is hydroxypropyl methyl cellulose to tie up plain ether main component, and viscosity is 100000~200000cps, white powder；Described can be again The main active of dispersed latex powder is ethylene-vinyl acetate copolymer, and its content is more than 95wt%.
- 9. a kind of method of the original state desulfurated plaster granular polystyrene light heat insulation material prepared as described in claim 1~8 is any, Characterized in that, comprise the following steps that：Raw material are weighed and poured into agitator for cement mortar by predetermined ratio, first with 130- 150r/min rotating speed stirs 1~2 minute slowly, then is stirred soon 2~4 minutes with 280-290r/min rotating speed, then will stir Compound slurry inject in the sample mould required by performance to be measured and vibration moulding, then press spiral from outside to inside with tamper Direction is uniformly plugged and pounded 23-27 times, while is inserted for several times along die wall with putty knife, and the slurry being higher by is pruned and used along die trial top surface and is smeared Son is floating, stands 17-19 hours in laboratory conditions, sample then is put into steam-cured 20-22 in 60 DEG C of steam curing box The hour demoulding, then conserved under the conditions of 20 ± 2 DEG C of temperature, the standard curing that relative humidity is more than 95% to age to be measured, Obtain sample to be tested.
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| CN108975850A (en) * | 2018-08-29 | 2018-12-11 | 济南大学 | A kind of light high-strength heat preservation material and preparation method thereof |
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