CN108658568A - A kind of preparation method of cracking resistance insulating brick - Google Patents
A kind of preparation method of cracking resistance insulating brick Download PDFInfo
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- CN108658568A CN108658568A CN201810537345.9A CN201810537345A CN108658568A CN 108658568 A CN108658568 A CN 108658568A CN 201810537345 A CN201810537345 A CN 201810537345A CN 108658568 A CN108658568 A CN 108658568A
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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
- C04B28/30—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 magnesium cements or similar cements
- C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Ceramic Products (AREA)
Abstract
The invention discloses a kind of preparation methods of cracking resistance insulating brick, include the following steps：Peanut shell powder is added in potassium hydroxide solution, heating stirring is filtered, vacuum drying, and carbon nanotube is added and is uniformly mixed, and carbonization, grinding is uniform, and ethylene glycol, Sodium Polyacrylate, water stirring is added, hydrobromic acid stirring is added, filters, washing is dried to obtain first material；Gum agents, liquid blowing agent are mixed, foaming, addition polyurethane foam particles continue foaming and obtain second material；Second material, high alumina cement, first material, magnesia oxychloride cement, blast-furnace cinder, talcum powder, xanthans, blanc fixe, early strength agent, reinforcing agent, water are stirred evenly, are molded, natural curing, demoulding places to complete solidification and obtains cracking resistance insulating brick.Gained insulating brick toughness of the invention is high, not easy to crack, and intensity is high, and heat insulation effect is good.
Description
Technical field
The present invention relates to insulating brick technical field more particularly to a kind of preparation methods of cracking resistance insulating brick.
Background technology
Flyash is the fine ash that catching is got off from the flue gas after coal combustion, and flyash is also the main of coal-burning power plant's discharge
Solid waste is larger one of the industrial residue of the current discharge capacity in China, with the development of power industry, the flyash of coal-burning power plant
Discharge capacity increases year by year.A large amount of flyash is untreated, just will produce airborne dust, pollutes air；If river can be caused by being discharged into water system
Stream silts up, and toxic chemical substance therein can also cause damages to human body and biology.If flyash prepared for insulating brick,
Cohesive use can be greatly saved, resource of protecting farmland, but prepare insulating brick there is a problem of it is easy to crack, it would be highly desirable to solve.
Invention content
Technical problems based on background technology, the present invention propose a kind of preparation method of cracking resistance insulating brick, institute
It is high to obtain insulating brick toughness, it is not easy to crack, and also intensity is high, and heat insulation effect is good.
A kind of preparation method of cracking resistance insulating brick proposed by the present invention, includes the following steps：
S1, peanut shell powder is added in potassium hydroxide solution, heating stirring is filtered, and it is mixed that carbon nanotube is added in vacuum drying
Uniform, carbonization is closed, grinding uniformly, is added ethylene glycol, Sodium Polyacrylate, water stirring, hydrobromic acid stirring is added, filtering is washed, and is done
It is dry to obtain first material；
S2, gum agents, liquid blowing agent are mixed, foaming, addition polyurethane foam particles continue foaming and obtain the second object
Material；
S3, by second material, high alumina cement, first material, magnesia oxychloride cement, blast-furnace cinder, talcum powder, xanthans, heavy
Shallow lake barium sulfate, early strength agent, reinforcing agent, water stir evenly, molding, natural curing, demoulding, place to complete solidification and obtain cracking resistance
Insulating brick.
Preferably, in S1, peanut shell powder, potassium hydroxide solution, carbon nanotube, ethylene glycol, Sodium Polyacrylate, water, hydrogen bromine
The weight ratio of acid is 12-16：85-95：4-8：1-2：2-4：50-70：2-4, a concentration of 1-1.6mol/L of potassium hydroxide solution, hydrogen
A concentration of 20-24wt% of bromic acid.
Preferably, in S1, peanut shell powder is added in potassium hydroxide solution, 60-66 DEG C of stirring 2-4h is warming up to, filters,
110-120 DEG C of vacuum drying 6-12h, is added carbon nanotube and is uniformly mixed, and 840-960 DEG C of carbonization 20-24min, grinding is uniform, adds
Enter ethylene glycol, Sodium Polyacrylate, water stirring 4-8h, hydrobromic acid is added and stirs 40-60min, filters, washing is dried to obtain first
Material.
Preferably, in S2, gum agents, liquid blowing agent, polyurethane foam particles weight ratio be 2-4：0.8-1.6：2-
4。
Preferably, in S2, gum agents, liquid blowing agent are mixed, foam 10-20min, and blowing temperature is 10-20 DEG C, is added
Enter polyurethane foam particles and continue the 2-4min that foams, obtains second material.
Preferably, in S3, second material, high alumina cement, first material, magnesia oxychloride cement, blast-furnace cinder, talcum powder, Huang
Virgin rubber, blanc fixe, early strength agent, reinforcing agent, water weight ratio be 4-8：80-120：20-40：60-100：6-12：8-16：
2-4：8-16：2-4：2-4：80-160.
Preferably, in S3, the natural curing time is 10-20h.
In S1 of the present invention, peanut shell powder is high with the degree of scatter of carbon nanotube after degradation of suitably alkalizing, by pipe
After the calcining of formula stove, the monolithic layer structure of carbon nanotube can enter in the empty shape structure of peanut shell powder, after grinding, degree of scatter
It is high, under the cooperation of ethylene glycol, further Sodium Polyacrylate is coated on surface and cured through hydrobromic acid, not only flexibility pole
It is good, and rough surface, keep first material and high alumina cement, magnesia oxychloride cement, the bond strength of blast-furnace cinder in S3 high, toughness
It is high, it is not easy to crack, while can realize gap filling, enhance the intensity of insulating brick, but weight is high, by the way that the second object is added in S3
Material generates large quantity of air bubble, can not only enhance heat insulation effect, but also can reduce insulating brick density.
After testing, compression strength >=8.5Mpa of present invention gained insulating brick, flexural strength >=1.0Mpa, thermal coefficient≤
0.054w/ (mk), heat transfer coefficient (120cm is thick)≤0.60w/ (m2K), dry shrinkage (express method)≤0.14%, can
With for piling up the wall of at least 10 meters height and in the exterior wall main body of multistory frame building, mainly play insulation effect, together
When can also bear gravity, tear resistance is high, and of low cost.
Specific implementation mode
In the following, technical scheme of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of preparation method of cracking resistance insulating brick, includes the following steps：
S1,12kg peanut shell powders are added in a concentration of 1mol/L potassium hydroxide solutions of 95kg, are warming up to 66 DEG C of stirring 2h,
Filtering, 120 DEG C of vacuum drying 6h, is added 8kg carbon nanotubes and is uniformly mixed, and 840 DEG C of carbonization 24min, grinding is uniform, and 1kg is added
Ethylene glycol, 4kg Sodium Polyacrylates, 50kg water stir 8h, and a concentration of 24wt% hydrobromic acids of 2kg are added and stir 40min, filtering is washed
It washs, is dried to obtain first material；
S2,4kg gum agents, 0.8kg liquid blowing agents are mixed, foam 20min, and blowing temperature is 10 DEG C, and it is poly- that 4kg is added
Urethane foam beads continue the 2min that foams, and obtain second material；
S3, by 8kg second materials, 80kg high alumina cements, 40kg first materials, 60kg magnesia oxychloride cements, 12kg Blast Furnace Ores
Slag, 8kg talcum powder, 4kg xanthans, 8kg blanc fixes, 4kg early strength agent, 2kg reinforcing agents, 160kg water stir evenly, at
Type, natural curing 10h, demoulding place to complete solidification and obtain cracking resistance insulating brick.
Embodiment 2
A kind of preparation method of cracking resistance insulating brick, includes the following steps：
S1,16kg peanut shell powders are added in a concentration of 1.6mol/L potassium hydroxide solutions of 85kg, are warming up to 60 DEG C of stirrings
4h, filtering, 110 DEG C of vacuum drying 12h are added 4kg carbon nanotubes and are uniformly mixed, and 960 DEG C of carbonization 20min, grinding is uniform, is added
2kg ethylene glycol, 2kg Sodium Polyacrylates, 70kg water stir 4h, and a concentration of 20wt% hydrobromic acids of 4kg are added and stir 60min, filter,
Washing, is dried to obtain first material；
S2,2kg gum agents, 1.6kg liquid blowing agents are mixed, foam 10min, and blowing temperature is 20 DEG C, and it is poly- that 2kg is added
Urethane foam beads continue the 4min that foams, and obtain second material；
S3, by 4kg second materials, 120kg high alumina cements, 20kg first materials, 100kg magnesia oxychloride cements, 6kg Blast Furnace Ores
Slag, 16kg talcum powder, 2kg xanthans, 16kg blanc fixes, 2kg early strength agent, 4kg reinforcing agents, 80kg water stir evenly, at
Type, natural curing 20h, demoulding place to complete solidification and obtain cracking resistance insulating brick.
Embodiment 3
A kind of preparation method of cracking resistance insulating brick, includes the following steps：
S1,13kg peanut shell powders are added in a concentration of 1.2mol/L potassium hydroxide solutions of 92kg, are warming up to 64 DEG C of stirrings
2.5h, filtering, 118 DEG C of vacuum drying 8h are added 7kg carbon nanotubes and are uniformly mixed, and 880 DEG C of carbonization 23min, grinding is uniform, adds
Enter 1.2kg ethylene glycol, 3.5kg Sodium Polyacrylates, 55kg water stirring 7h, a concentration of 23wt% hydrobromic acids stirrings of 2.5kg are added
45min is filtered, and washing is dried to obtain first material；
S2,3.5kg gum agents, 1kg liquid blowing agents are mixed, foam 18min, and blowing temperature is 13 DEG C, and 3.5kg is added
Polyurethane foam particles continue the 2.5min that foams, and obtain second material；
S3, by 7kg second materials, 90kg high alumina cements, 35kg first materials, 70kg magnesia oxychloride cements, 10kg Blast Furnace Ores
Slag, 10kg talcum powder, 3.5kg xanthans, 10kg blanc fixes, 3.5kg early strength agent, 2.5kg reinforcing agents, the stirring of 140kg water
Uniformly, it is molded, natural curing 12h, demoulding, places to complete solidification and obtain cracking resistance insulating brick.
Embodiment 4
A kind of preparation method of cracking resistance insulating brick, includes the following steps：
S1,15kg peanut shell powders are added in a concentration of 1.4mol/L potassium hydroxide solutions of 88kg, are warming up to 62 DEG C of stirrings
3.5h, filtering, 112 DEG C of vacuum drying 10h are added 5kg carbon nanotubes and are uniformly mixed, and 920 DEG C of carbonization 21min, grinding is uniform, adds
Enter 1.8kg ethylene glycol, 2.5kg Sodium Polyacrylates, 65kg water stirring 5h, a concentration of 21wt% hydrobromic acids stirrings of 3.5kg are added
55min is filtered, and washing is dried to obtain first material；
S2,2.5kg gum agents, 1.4kg liquid blowing agents are mixed, foam 12min, and blowing temperature is 17 DEG C, is added
2.5kg polyurethane foam particles continue the 3.5min that foams, and obtain second material；
S3, by 5kg second materials, 110kg high alumina cements, 25kg first materials, 90kg magnesia oxychloride cements, 8kg Blast Furnace Ores
Slag, 14kg talcum powder, 2.5kg xanthans, 14kg blanc fixes, 2.5kg early strength agent, 3.5kg reinforcing agents, the stirring of 100kg water
Uniformly, it is molded, natural curing 18h, demoulding, places to complete solidification and obtain cracking resistance insulating brick.
Embodiment 5
A kind of preparation method of cracking resistance insulating brick, includes the following steps：
S1,14kg peanut shell powders are added in a concentration of 1.3mol/L potassium hydroxide solutions of 90kg, are warming up to 63 DEG C of stirrings
3h, filtering, 115 DEG C of vacuum drying 9h are added 6kg carbon nanotubes and are uniformly mixed, and 900 DEG C of carbonization 22min, grinding is uniform, is added
1.5kg ethylene glycol, 3kg Sodium Polyacrylates, 60kg water stir 6h, and a concentration of 22wt% hydrobromic acids of 3kg are added and stir 50min, mistake
Filter, washing, is dried to obtain first material；
S2,3kg gum agents, 1.2kg liquid blowing agents are mixed, foam 15min, and blowing temperature is 15 DEG C, and it is poly- that 3kg is added
Urethane foam beads continue the 3min that foams, and obtain second material；
S3, by 6kg second materials, 100kg high alumina cements, 30kg first materials, 80kg magnesia oxychloride cements, 9kg Blast Furnace Ores
Slag, 12kg talcum powder, 3kg xanthans, 12kg blanc fixes, 3kg early strength agent, 3kg reinforcing agents, 120kg water stir evenly, at
Type, natural curing 15h, demoulding place to complete solidification and obtain cracking resistance insulating brick.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of preparation method of cracking resistance insulating brick, which is characterized in that include the following steps：
S1, peanut shell powder is added in potassium hydroxide solution, heating stirring is filtered, vacuum drying, and it is equal that carbon nanotube mixing is added
Even, carbonization, grinding is uniform, and ethylene glycol, Sodium Polyacrylate, water stirring is added, hydrobromic acid stirring is added, filters, washing, dry
To first material；
S2, gum agents, liquid blowing agent are mixed, foaming, addition polyurethane foam particles continue foaming and obtain second material；
S3, by second material, high alumina cement, first material, magnesia oxychloride cement, blast-furnace cinder, talcum powder, xanthans, precipitated sulfur
Sour barium, early strength agent, reinforcing agent, water stir evenly, molding, natural curing, demoulding, place to complete solidification and obtain cracking resistance heat preservation
Brick.
2. the preparation method of cracking resistance insulating brick according to claim 1, which is characterized in that in S1, peanut shell powder, hydroxide
Potassium solution, carbon nanotube, ethylene glycol, Sodium Polyacrylate, water, hydrobromic acid weight ratio be 12-16：85-95：4-8：1-2：2-4：
50-70：2-4, a concentration of 1-1.6mol/L of potassium hydroxide solution, a concentration of 20-24wt% of hydrobromic acid.
3. the preparation method of cracking resistance insulating brick according to claim 1 or claim 2, which is characterized in that in S1, by peanut shell powder plus
Enter in potassium hydroxide solution, be warming up to 60-66 DEG C of stirring 2-4h, filtering, carbon nanometer is added in 110-120 DEG C of vacuum drying 6-12h
Pipe is uniformly mixed, and 840-960 DEG C of carbonization 20-24min, grinding is uniform, and ethylene glycol, Sodium Polyacrylate, water is added and stirs 4-8h, adds
Enter hydrobromic acid stirring 40-60min, filter, washing is dried to obtain first material.
4. according to the preparation method of any one of the claim 1-3 cracking resistance insulating bricks, which is characterized in that in S2, gum agents,
Liquid blowing agent, polyurethane foam particles weight ratio be 2-4：0.8-1.6：2-4.
5. according to the preparation method of any one of the claim 1-4 cracking resistance insulating bricks, which is characterized in that in S2, by colloid
Agent, liquid blowing agent mixing, foam 10-20min, and blowing temperature is 10-20 DEG C, and polyurethane foam particles are added and continue the 2- that foams
4min obtains second material.
6. according to the preparation method of any one of the claim 1-5 cracking resistance insulating bricks, which is characterized in that in S3, the second object
Material, high alumina cement, first material, magnesia oxychloride cement, blast-furnace cinder, talcum powder, xanthans, blanc fixe, early strength agent, enhancing
Agent, water weight ratio be 4-8：80-120：20-40：60-100：6-12：8-16：2-4：8-16：2-4：2-4：80-160.
7. according to the preparation method of any one of the claim 1-6 cracking resistance insulating bricks, which is characterized in that in S3, support naturally
The shield time is 10-20h.
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| CN201810537345.9A CN108658568A (en) | 2018-05-30 | 2018-05-30 | A kind of preparation method of cracking resistance insulating brick |
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Citations (8)
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|---|---|---|---|---|
| CN101792300A (en) * | 2010-03-24 | 2010-08-04 | 徐志 | Insulation wall bricks and preparation method thereof |
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2018
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| CN101792300A (en) * | 2010-03-24 | 2010-08-04 | 徐志 | Insulation wall bricks and preparation method thereof |
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| CN103951361A (en) * | 2014-04-15 | 2014-07-30 | 商洛学院 | Preparation method of vanadium-doped tailings inorganic-foam thermal-insulation material for buildings |
| CN104894692A (en) * | 2015-06-03 | 2015-09-09 | 东华大学 | Preparation method of high-strength graphene fibers |
| CN106732438A (en) * | 2017-03-19 | 2017-05-31 | 河北工业大学 | A kind of natural biomass adsorbent and preparation method and application |
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