CN109467360A - A kind of submicro inorganic whisker reinforcement aerogel foam concrete and preparation method thereof - Google Patents
A kind of submicro inorganic whisker reinforcement aerogel foam concrete and preparation method thereof Download PDFInfo
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- CN109467360A CN109467360A CN201811380907.XA CN201811380907A CN109467360A CN 109467360 A CN109467360 A CN 109467360A CN 201811380907 A CN201811380907 A CN 201811380907A CN 109467360 A CN109467360 A CN 109467360A
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- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
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Abstract
The invention discloses a kind of submicro inorganic whisker reinforcement aerogel foam concrete and preparation method thereof.The submicro inorganic whisker reinforcement aerogel foam concrete, preparing raw material includes cementitious material, aerogel powder, submicro inorganic whisker, thickener, foaming agent and water；Wherein, the cementitious material, aerogel powder, submicro inorganic whisker mass ratio be 1:0.01~0.3:0.001~0.01；The submicro inorganic diameter of whiskers is 100nm~1 μm, and draw ratio 10~10000, sub-micron crystal must be closer with aeroge nanoaperture scale, and reinforcing effect is more preferable.Submicro inorganic whisker reinforcement aerogel foam concrete of the present invention has extremely-low density, ultralow thermal conductivity, it may have good compression strength.It can be applied to the fields such as construction wall heat preservation, road filling, barrier sound insulation, be with a wide range of applications.
Description
Technical field
The invention belongs to lightweights, heat preserving and insulating material field, and in particular to a kind of submicro inorganic whisker reinforcement aeroge
Foam concrete and preparation method thereof.
Background technique
Foam concrete is widely used in building trade, because it is with low-density, low thermal conduction characteristic, protects frequently as building
Adiabator or filling materials for wall body.By taking China vast in territory as an example, in the northern area of China, foam concrete is frequently as building
Thermal insulation material uses；And in southern area, foam concrete is mainly used in the heat-insulated of wall.Foam concrete is as a kind of light
The energy-saving building materials of matter and self-heat conserving, but there is also certain limitations for the foam concrete of lightweight, such as intensity is low, water suction
The disadvantages of cracking, need further the manufacture craft of foam concrete, material, in terms of make certain change, make
Its thermal property more optimizes.Therefore, quality of research is lighter, thermal coefficient is smaller, the better foam concrete of heat insulation effect without
It is suspected to be the hot spot studied from now on.
Aeroge is current density minimum (down to 0.003gcm-3) and heat-proof quality preferably (under room temperature down to
0.013W·m-1·K-1) novel nano porous structure solid material.Aeroge has contact angle after handling by special process
About 160 ° of super-hydrophobicity, while also there are the characteristics such as corrosion-resistant, high temperature resistant, it is a kind of excellent heat-insulating heat-preserving material.In object
The fields such as reason, calorifics, optics and electricity have extensive development and application prospect.In recent years, there is the heat preservation of literature research aeroge
Mortar, aerogel blanket, aeroge glass etc. are used as building thermal insulation material, and " aeroge is with comparison foam concrete pore structure for document
And the influence of performance " aerogel foam concrete is prepared, research shows that can have by the way that ultralow, super heat-insulated aerogel powder is added
The density and thermal coefficient of the reduction foam concrete of effect.Therefore, aeroge is mixed to have in foam concrete and reduces foam
The self weight of concrete and the potential advantages for filling stomata hole, are expected to prepare low-density under low porosity, low thermally conductive bubble
Foam concrete.
Since foam concrete mouldability is difficult to ensure when bubble content is excessive, increase the amount of foam merely to drop
The self weight of low foam concrete is difficult to realize.Document " grind with performance test by the preparation of lightweight low heat conductivity gas gel foam concrete
Study carefully " it tests and prepares a kind of density 270.2kg/m3, thermal coefficient 0.069W/ (m.K) Ultralight foam concrete, study table
It is bright to effectively reduce the density and thermal coefficient of foam concrete by the way that ultralow, super heat-insulated aerogel powder is added, but simultaneously
Aeroge and cement combination degree be not high, is made foam concrete there are pore sizes the disadvantages such as uneven, intensity is low, it is difficult to obtain
Obtain the ultralight foam concrete of higher mechanical property；Patent CN 201610214836.0 relates to a kind of fibrofelt enhancing airsetting
Calymma foam concrete and preparation method thereof, by it is powder-modified to hydrophobic aerogels, prepare aerogel foam concrete mortar,
Aerogel foam concrete mortar is infiltrated to fibrofelt again.Though the technology effectively increases the strong of aerogel foam concrete
Degree, but aerogel powder needs to first pass through hydrophobically modified processing, and preparation process is complicated；And aerogel foam slurry wetting fibre
In the preparation process of felt, fluidity of slurry is too poor, compound not enough uniformly with fibrofelt, is still difficult to obtain high performance ultralight foam
Concrete.
Domestic and international lot of documents reports the research that fiber or whisker are used to enhance aeroge, with the work such as fiber, whisker
Preparing aerogel foam concrete for reinforcement is the effective measures for improving its mechanical property.Due to inorfil temperature tolerance compared with
It is good, and have certain occlusion effect to hyperthermia radiation, it can be used for heat-insulated under hot environment.But currently used inorfil is straight
Diameter is larger, if glass fiber diameter is 5~25 μm, about 2~5 μm of ceramic fibre diameter, Calcium Sulfate Whiskers are 1~10 μm,
The diameter of reinforcing fiber or whisker belongs to micron order, has biggish difference with the scale of aerogel particle and hole, so that enhancing
Fiber or whisker and aeroge on combination interface there are biggish surface tension is poor, the problems such as being also easy to produce cracking, to influence
The intensity and structural stability of aerogel foam concrete.
Patent CN 108585926A discloses a kind of foam concrete and preparation method, uses alkali-resistant glass fibre, poly- third
One of alkene fiber enhances foam concrete, though the compression strength that foamed concrete material is made increases, density etc.
Grade is but all in 400kg/m3More than.By the way that modified glass-fiber is added, (length 12mm, diameter are patent CN 106866177A
9um), durability, compression strength, flexural strength and the thermal coefficient of fibrous foam concrete sample etc. of preparation are matched compared with other
Than having clear improvement；And the porosity of fibrous foam concrete sample is uniform.But the thermal coefficient of foam concrete is still greater than
0.25W/(m.K)。
Patent CN 105777190A discloses a kind of cheat and splits fibrous foam concrete, fine using the polystyrene of 3~7mm
Dimension, prepares that a kind of light weight, intensity is big, foam concrete of good heat insulating, density 320kg/m3, compression strength is low
In 1.1MPa, thermal coefficient is not more than 0.07W/ (m.K).
Thus it is clear that general fibre (such as glass fibre) although incorporation can effectively improve the mechanical property of foam concrete,
But still it is difficult to solve the contradiction between the density of foam concrete, thermal coefficient, compression strength three.
Summary of the invention
In view of this, the primary purpose of the present invention is that proposing a kind of submicro inorganic whisker reinforcement aerogel foam coagulation
Native thermal insulation material, the thermal insulation material is while with super thermal and insulating performance, it may have good compression strength.It overcomes
Foam concrete density, thermal coefficient, conflicting problem between compression strength three in the prior art.
Another object of the present invention is to provide a kind of systems of submicro inorganic whisker reinforcement aerogel foam concrete
Preparation Method.Overcome the problems such as preparation process is complicated, aeroge and concrete combination degree be not high in the prior art.
Objects of the present invention are achieved through the following technical solutions.
A kind of submicro inorganic whisker reinforcement aerogel foam concrete material, prepare raw material include cementitious material,
Aerogel powder, submicro inorganic whisker, thickener, foaming agent and water；Wherein, the cementitious material, aerogel powder and Asia
The mass ratio of micron inorganic crystal whisker is 1:0.01~0.3:0.001~0.01；The submicro inorganic crystalline substance diameter is the μ of 100nm~1
M, draw ratio are 10~10000.
The submicro inorganic whisker reinforcement aerogel foam concrete material is: first being configured to thicken by thickener and water
Foam is made in foaming agent and water by water；Then cementitious material, aerogel powder, submicro inorganic whisker and viscous water are made
Submicro inorganic whisker aeroge concrete mortar；Submicro inorganic whisker aeroge concrete mortar is obtained with foams mix again
To slurry, obtained after finally slurry is stood and conserved.
The present invention in foam concrete by mixing light porous network structure, thermal coefficient is lower than air (under room temperature
0.023W·m-1·K-1) aerogel powder, and by incorporation dispersed submicro inorganic whisker reinforcement aerogel foam coagulation
The mechanical property and flexibility of soil；The present invention does not need to carry out hydrophobically modified to aerogel powder, enormously simplifies airsetting calymma
The preparation process of foam concrete；In addition, mutually overlap joint is made between the incorporation of dispersed submicro inorganic whisker not only reduces whisker
At heat bridge, and sub-micron crystal must be closer with aeroge nanoaperture scale, effectively improves aerogel powder and water
Combination between mud improves the gas cell distribution of foam concrete.
Aeroge of the present invention is a kind of lightweight, porous Amorphous solids material, is in network structure, has super guarantor
Warm heat-proof quality, i.e., its thermal conductivity can be down to 0.013Wm under room temperature-1·K-1, specific surface area be up to 500~1000m2·g-1、
Density is down to 0.003gcm-3It is about 10~100nm with pore-size.
Further, the aerogel powder includes silicon dioxide aerogel powder, clay aerogel powder, carbon aerogels
One of powder and metal alkoxide aerogel powder or at least two or more.
Further, the submicro inorganic whisker is in evenly dispersed shape, is SiC sub-micron crystal palpus, potassium hexatitanate sub-micro
Meter Jing Xu, calcium sulfate sub-micron crystal palpus, Si3N4One or more of sub-micron crystal palpus, magnesia sub-micron crystal palpus.
Further, the thickener includes sodium bentonite, organobentonite, diatomite, stick stone soil, Silica hydrogel, first
One of base cellulose, hydroxypropyl methyl cellulose, sodium carboxymethylcellulose, hydroxyethyl cellulose, starch and gelatin or
At least two or more；The foaming agent includes Tea Saponin foaming agent, saponin foaming agent, rosin foaming agent, hoof tips foaming agent
With one of hair keratoprotein foaming agent or at least two or more.
Purpose using thickener is to enable aerogel powder and the full and uniform mixing of cementitious material, prevents aeroge
There is lamination in powder and cementitious material, swim in above slurry.
Further, the moisture is two parts, and for preparing viscous water, which presses first part's water with thickener
Mass ratio 1000:1~100:1 obtains viscous water, the cementitious material, aerogel powder, sub-micron after being mixed and stirred for uniformly
The mass ratio of inorganic crystal whisker and viscous water is 1:0.01~0.3:0.001~0.01:0.35~1；Second part water is used for and hair
Infusion prepares foam.
Further, the mass ratio of the foaming agent and second part water is 1/80~1/20, and foaming agent is mixed with water
Foam is made using mechanical pressurization method in liquid, makes the density domination of foam in 50 ± 5kg/m3, test discovery and steep in the range
The stability of foam is best；The mass ratio of the foam and cementitious material that are added is 0.1~0.3:1.
Mechanical pressurization method of the present invention is that foaming machine pressure expansion is given by air compressor, i.e. the prefabricated bubble of mechanical stirring
Foam method, belongs to physical blowing.
Further, the cementitious material includes portland cement, aluminate cement, sulphate aluminium cement, chlorine oxygen magnesium water
One in mud, slag cements, pulverized fuel ash cement, volcano grey matter cement, lime, gypsum, waterglass, pitch, resin and polymer
Kind or at least two or more.
A kind of preparation method of submicro inorganic whisker reinforcement aerogel foam concrete, comprising the following steps:
(1) thickener and water are configured to viscous water；Cementitious material is mixed with aerogel powder, viscous water is added, stirs
It mixes and uniformly obtains aeroge concrete grout；Then submicro inorganic whisker is added, is stirred evenly, inorganic crystal whisker aeroge is obtained
Concrete mortar；
(2) it foams after mixing foaming agent with water, inorganic crystal whisker aeroge concrete mortar then is added in foam
In, it is mixed, obtains inorganic crystal whisker aerogel foam concrete mortar；Wherein, the matter of the foam and cementitious material that are added
Amount is than being 0.1~0.3:1；
(3) will submicro inorganic whisker aerogel foam concrete mortar stand and maintenance after, obtain a kind of sub-micron without
Machine whisker reinforcement aerogel foam concrete.
Further, step (3) standing and maintenance, including by submicro inorganic whisker aerogel foam concrete grout
Body pours into mold, is covered using film, demoulding after standing 20~48 hours, then is conserved.
Further, step (3) maintenance includes normal temperature and pressure maintenance, climatic chamber maintenance, drying box maintenance, temperature
One of wet alternation cage breeding shield, fog curing, curing in water or steam press maintenance.
Further, the temperature of step (3) described maintenance is 40~80 DEG C, and the humidity of maintenance is 35~95%RH.
The present invention also provides a kind of submicro inorganic whisker reinforcement aerogel foam concrete materials to protect in construction wall
The application in the fields such as temperature, Refrigerated Transport, road filling and barrier sound insulation.
Aiming at the problems existing in the prior art, the present invention by mixed in foam concrete it is light porous, super-hydrophobic,
Thermal coefficient is lower than the aerogel powder of air, and passes through incorporation submicro inorganic whisker (diameter is 100nm~1 μm) enhancing gas
The mechanical property and flexibility of gel foam concrete.Compared with fibrofelt enhances foam concrete, on the one hand simplify preparation work
Skill, operation are simpler；The incorporation of another aspect submicro inorganic whisker not only reduces mutually overlap between fiber caused by heat bridge,
And sub-micron crystal must be closer with aeroge nanoaperture scale, effectively improves the knot between aerogel powder and cement
It closes, that is, it is poor in surface tension present on combination interface to improve aeroge, the problems such as being also easy to produce cracking, so that it is mixed to enhance foam
Coagulate the compression strength of soil.
Compared with prior art, the invention has the advantages that and the utility model has the advantages that
(1) submicron-scale whisker is used, a diameter of 100nm~1 μm, draw ratio are 10~10000, evenly dispersed
In aerogel foam concrete substrate, to there is bridging in the whisker of high length-diameter ratio equivalent in aerogel foam concrete material
It answers, reduces the expansion of aerogel foam concrete cracks, play the crystal whisker toughened effect of sub-micron.
(2) submicron order whisker and aeroge nanoaperture scale are closer, significantly reduce reinforcement and aeroge exists
Surface tension on interface is poor, improves the combination effect of reinforcement and aeroge, to make sub-micron crystal must aerogel foam
Concrete has good mechanical property and structural stability.
(3) present invention replaces aerogel powder hydrophobically modified step using viscous water, and it is mixed greatly to simplify aerogel foam
The preparation process of soil is coagulated, so that preparation process is simpler, it is easy to operate.
(4) submicro inorganic whisker reinforcement aerogel foam concrete prepared by the present invention has super heat insulation property
The advantages that energy, fire protecting performance is good, sound insulation is strong and long service life, can be widely applied to construction wall heat preservation, road filling, barrier
, there is huge market application prospect in the fields such as sound insulation.
Detailed description of the invention
Fig. 1 is the process flow chart for preparing submicro inorganic whisker reinforcement aerogel foam concrete.
Specific embodiment
Below with reference to embodiment and attached drawing, the present invention is described in further detail, but embodiments of the present invention are unlimited
In this.Unless otherwise instructed, all raw materials of the present invention can be bought directly from the market.
Embodiment 1
The present embodiment prepares calcium sulfate sub-micron crystal palpus/SiO2Aerogel foam concrete is with SiO2Aerogel powder is
Packing material, partial size are 60 mesh (about 250 μm), porosity 90%, pore diameter 100nm；With calcium sulfate sub-micron crystal palpus
For reinforcement, a diameter of 100nm, draw ratio 100 are in homogeneously dispersed state.Specific preparation process is as follows:
(1) water is mixed with sodium bentonite according to mass ratio 1000:1, and stirred evenly, obtain viscous water；
(2) by composition silicate PO42.5 cement and SiO2Aerogel powder progress is dry-mixed, and step (1) is then added and obtains
Viscous water, stir evenly, obtain SiO2Aeroge concrete mortar；Wherein composition silicate PO42.5 cement, SiO2Aeroge
Mass ratio between powder and viscous water three is 1:0.10:0.7；
(3) SiO obtained to step (2) must will be slowly added in the calcium sulfate sub-micron crystal of dispersed2Aeroge coagulation
It in soil paste body, stirs evenly, obtains calcium sulfate sub-micron crystal palpus/SiO2Aeroge concrete mortar；Wherein, composition silicate
PO42.5 cement, SiO2Mass ratio between aerogel powder and calcium sulfate sub-micron crystal palpus three is 1:0.1:0.002；
(4) rosin foaming agent is mixed with water according to mass ratio for 1/40, then is foamed using mechanical pressurization, obtained
The density of foam is 45kg/m3, it is then added into the calcium sulfate sub-micron crystal palpus/SiO obtained to step (3)2Aeroge coagulation
In soil paste body, it is mixed, obtains calcium sulfate sub-micron crystal palpus/SiO2Aerogel foam concrete mortar.Wherein, it is added
The mass ratio of foam and cementitious material composition silicate PO42.5 cement is 0.15:1.
(5) the calcium sulfate sub-micron crystal palpus/SiO for obtaining step (4)2Aerogel foam concrete mortar pours into mold
It is interior, it is covered using film, stands demoulding after 20h, finally carried out in the climatic chamber that temperature is 60 DEG C, humidity is 60%RH
It conserves, is taken out after 28d, obtain calcium sulfate sub-micron crystal palpus/SiO2Aerogel foam concrete sample 1.
Embodiment 2
The present embodiment prepares SiC submicro inorganic whisker/clay soil clay soil silica aerogel foam concrete, is with clay soil clay soil silica aerogel powder
For packing material, partial size is 70 mesh (about 212 μm), porosity 93%, pore diameter 60nm；It is brilliant with SiC submicro inorganic
It must be reinforcement, a diameter of 500nm, draw ratio 1000 are in homogeneously dispersed state.Specific preparation process is as follows:
(1) water is mixed with diatomite example 1000:5 in mass ratio, and stirred evenly, obtain viscous water；
(2) chlorine oxygen magnesium PO42.5 cement and clay soil clay soil silica aerogel powder are subjected to the increasing dry-mixed, then addition step (1) is prepared
Thick water, stirs evenly, and obtains clay soil clay soil silica aerogel concrete mortar；42.5 cement of chlorine oxygen magnesium PO, clay soil clay soil silica aerogel powder and
Mass ratio between viscous water three is 1:0.2:0.8；
(3) the clay soil clay soil silica aerogel coagulation obtained to step (2) will be slowly added in the SiC submicro inorganic whisker of dispersed
It in soil paste body, stirs evenly, obtains SiC submicro inorganic whisker/clay soil clay soil silica aerogel concrete mortar；Wherein, chlorine oxygen magnesium PO
Mass ratio between 42.5 cement, clay soil clay soil silica aerogel powder and SiC submicro inorganic whisker three is 1:0.2:0.006；
(4) hoof tips foaming agent is mixed with water according to mass ratio for 1/60, then is foamed using mechanical pressurization, steeped
The density of foam is 50kg/m3.It is then added into the SiC submicro inorganic whisker/clay soil clay soil silica aerogel coagulation obtained to step (3)
In soil paste body, it is mixed, obtains SiC submicro inorganic whisker/clay soil clay soil silica aerogel foam concrete slurry.Wherein, it is added
Foam and cementitious material chlorine oxygen magnesium PO42.5 cement mass ratio be 0.2:1.
(5) SiC submicro inorganic whisker/clay soil clay soil silica aerogel foam concrete slurry that step (4) obtains is poured into mold
It is interior, it is covered using film, demoulding after standing for 24 hours finally carries out in the climatic chamber that temperature is 50 DEG C, humidity is 70%RH
It conserves, is taken out after 28d, obtain SiC submicro inorganic whisker/clay soil clay soil silica aerogel foam concrete sample 2.
Embodiment 3
The present embodiment prepares Si3N4Submicro inorganic whisker/carbon aerogels foam concrete is to be with carbon aerogels powder
Packing material, partial size are 80 mesh (about 180 μm), porosity 95%, pore diameter 30nm；Si3N4Submicro inorganic whisker is
Reinforcement, a diameter of 1um, draw ratio 10000 are in homogeneously dispersed state.Specific preparation process is as follows:
(1) water is mixed with stick stone soil example 100:1 in mass ratio, and stirred evenly, obtain viscous water；
(2) 42.5 cement of aluminium sulfate PO and the progress of carbon aerogels powder is dry-mixed, step (1) preparation is then added
Viscous water stirs evenly, and obtains carbon aerogels concrete mortar；42.5 cement of aluminium sulfate PO, carbon aerogels powder and
Mass ratio between viscous water three is 1:0.3:0.9；
It (3) will be in the Si of dispersed3N4Sub-micron crystal must be slowly added to the carbon aerogels concrete grout obtained to step (2)
It in body, stirs evenly, obtains Si3N4Sub-micron crystal palpus/carbon aerogels concrete mortar；Wherein, 42.5 cement of aluminium sulfate PO,
Carbon aerogels powder and Si3N4Mass ratio between sub-micron crystal palpus three is 1:0.3:0.01；
(4) saponin foaming agent is mixed with water according to mass ratio for 1/80, then is foamed using mechanical pressurization, obtained
The density of foam is 55kg/m3.It is then added into the Si obtained to step (3)3N4Sub-micron crystal palpus/carbon aerogels concrete
In slurry, it is mixed, obtains Si3N4Sub-micron crystal palpus/carbon aerogels foam concrete slurry.Wherein, the foam that is added with
The mass ratio of 42.5 cement of cementitious material aluminium sulfate PO is 0.25:1.
(5) Si for obtaining step (4)3N4Sub-micron crystal palpus/carbon aerogels foam concrete slurry pours into mold, makes
It is covered with film, stands demoulding after 32h, finally conserved in the climatic chamber that temperature is 40 DEG C, humidity is 80%RH,
It is taken out after 28d, obtains Si3N4Submicro inorganic whisker/carbon aerogels foam concrete sample 3.
According to standard " foam concrete " JG/T266-2011 test foam concrete density, taken before test three pieces it is identical
Test specimen is put into electric drying oven with forced convection, and drying is until constant mass at 105 DEG C；Take the average value of result three times, then known examination
Block product, the density of fiber aerogel foam concrete is calculated using density formula；Sample is held referring to GB10294-2008
Row, test before first test specimen is put into electric drying oven with forced convection, 105 DEG C continuous drying 4 hours, then take out test specimen, put to
It is cooled to room temperature in drier, experiment uses the analysis of thermal conductivity instrument of the model 1500S produced by Hot Disk company, Sweden
Test its thermal coefficient；Its compression strength is tested according to standard " foam concrete " JG/T266-2011, puts building block before test
It is to be dried to front and back in (60 ± 5) DEG C drying box to be separated by 4 hours permanent quality of poor quality no more than 0.1g twice in temperature.Test
The intensity universal testing machine for the model INSTRON-5984 that instrument is produced by Shanghai testing equipment trade Co., Ltd is tested.
Through detecting, the above-mentioned calcium sulfate sub-micron crystal palpus/SiO being prepared2Aerogel foam concrete sample 1, SiC are sub-
Micron inorganic crystal whisker/clay soil clay soil silica aerogel foam concrete sample 2, Si3N4Submicro inorganic whisker/carbon aerogels foam concrete
The basic performance indices of sample 3 are as shown in table 1
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of submicro inorganic whisker reinforcement aerogel foam concrete, which is characterized in that it includes gelling material that it, which prepares raw material,
Material, aerogel powder, submicro inorganic whisker, thickener, foaming agent and water；Wherein, the cementitious material, aerogel powder and
The mass ratio of submicro inorganic whisker is 1:0.01~0.3:0.001~0.01；The submicro inorganic diameter of whiskers is 100nm
~1 μm, draw ratio is 10~10000.
2. a kind of submicro inorganic whisker reinforcement aerogel foam concrete according to claim 1, which is characterized in that institute
Stating aerogel powder includes silicon dioxide aerogel powder, clay soil clay soil silica aerogel powder, carbon aerogels powder, polyvinyl alcohol aeroge
One of powder and metal alkoxide aeroge or at least two or more.
3. a kind of submicro inorganic whisker reinforcement aerogel foam concrete according to claim 1, which is characterized in that institute
Submicro inorganic whisker is stated in evenly dispersed shape, is SiC sub-micron crystal palpus, potassium hexatitanate sub-micron crystal palpus, calcium sulfate sub-micron
Whisker, Si3N4One of sub-micron crystal palpus, magnesia sub-micron crystal palpus or at least two or more.
4. a kind of submicro inorganic whisker reinforcement aerogel foam concrete according to any one of claims 1 to 3, special
Sign is that the thickener includes sodium bentonite, organobentonite, diatomite, stick stone soil, Silica hydrogel, methylcellulose, hydroxyl
One of propyl methocel, sodium carboxymethylcellulose, hydroxyethyl cellulose, starch and gelatin or at least two with
On；The foaming agent includes Tea Saponin foaming agent, saponin foaming agent, rosin foaming agent, hoof tips foaming agent and hair cutin
One of protein foaming agent or at least two or more.
5. a kind of submicro inorganic whisker reinforcement aerogel foam concrete according to any one of claims 1 to 3, special
Sign is that the cementitious material includes portland cement, aluminate cement, sulphate aluminium cement, magnesia oxychloride cement, slag water
One of mud, pulverized fuel ash cement, volcano grey matter cement, lime, gypsum, waterglass, pitch, resin and polymer or at least
It is two or more.
6. a kind of submicro inorganic whisker reinforcement aerogel foam concrete according to any one of claims 1 to 3, special
Sign is that the moisture is two parts, and first part's water is for preparing viscous water, and the part water and thickener are in mass ratio
1000:1~100:1 obtains viscous water after being mixed and stirred for uniformly, the cementitious material, aerogel powder, submicro inorganic are brilliant
It must be 1:0.01~0.3:0.001~0.01:0.35~1 with the mass ratio of viscous water；Second part water is used for and foaming agent system
Standby foam.
7. a kind of submicro inorganic whisker reinforcement aerogel foam concrete according to claim 6, which is characterized in that institute
The mass ratio for stating foaming agent and second part water is 1/80~1/20, and foaming agent and water use mechanical pressurization method that foam is made, and is made
Make the density domination of foam in 50 ± 5kg/m3；The mass ratio of the foam and cementitious material that are added is 0.1~0.3:1.
8. a kind of submicro inorganic whisker reinforcement aerogel foam concrete according to any one of claims 1 to 3, special
Sign is that the submicro inorganic whisker reinforcement aerogel foam concrete is: thickener and water are first configured to viscous water, it will
Foam is made in foaming agent and water；Then sub-micron is made in cementitious material, aerogel powder, submicro inorganic whisker and viscous water
Inorganic crystal whisker aeroge concrete mortar；Submicro inorganic whisker aeroge concrete mortar is starched with foams mix again
Body obtains after finally slurry is stood and conserved.
9. a kind of described in any item preparation sides of submicro inorganic whisker reinforcement aerogel foam concrete of claim 1 to 8
Method, which comprises the following steps:
(1) thickener and water are configured to viscous water；Cementitious material is mixed with aerogel powder, viscous water is added, stirring is equal
It is even to obtain aeroge concrete grout；Then submicro inorganic whisker is added, is stirred evenly, submicro inorganic whisker airsetting is obtained
Glue concrete mortar；
(2) it foams after mixing foaming agent with water, submicro inorganic whisker/aeroge concrete grout then is added in foam
In body, it is mixed, obtains submicro inorganic whisker aerogel foam concrete mortar；Wherein, the foam being added and gelling
The mass ratio of material is 0.1~0.3:1；
(3) after submicro inorganic whisker aerogel foam concrete mortar being stood and conserved, it is brilliant to obtain the submicro inorganic
It must enhancing aerogel foam concrete.
10. a kind of described in any item submicro inorganic whisker reinforcement aerogel foam concrete materials of claim 1 to 8 are being built
Build the application in wall thermal insulating, Refrigerated Transport, road filling and barrier sound insulation field.
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| CN113860823A (en) * | 2021-11-03 | 2021-12-31 | 万华建筑科技有限公司 | Preparation process of inorganic aerogel soil |
| CN115676839A (en) * | 2021-07-30 | 2023-02-03 | 万华建筑科技有限公司 | Aerogel slurry and preparation process thereof |
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