CN106116425A - A kind of crack-resistant heat-insulation wall construction material and preparation method thereof - Google Patents
A kind of crack-resistant heat-insulation wall construction material and preparation method thereof Download PDFInfo
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- CN106116425A CN106116425A CN201610463164.7A CN201610463164A CN106116425A CN 106116425 A CN106116425 A CN 106116425A CN 201610463164 A CN201610463164 A CN 201610463164A CN 106116425 A CN106116425 A CN 106116425A
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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
- C04B28/24—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
- C04B28/26—Silicates of the alkali metals
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- 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
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
Abstract
The invention discloses a kind of crack-resistant heat-insulation wall construction material and preparation method thereof, the raw material of described crack-resistant heat-insulation wall construction material includes by weight: cement 400 600 parts, silicon powder 40 70 parts, sierozem power 80 220 parts, expanded vermiculite 80 160 parts, sandstone 60 100 parts, hollow glass micropearl 60 100 parts, rock wool silk 40 80 parts, modified coal ash 30 80 parts, granular polystyrene 60 120 parts, the wood fiber 10 20 parts, polypropylene fibre 5 10 parts, pva powder 30 60 parts, 40 80 parts of polymer dispersion powder end, cellulose ether 10 20 parts.In the present invention, described crack-resistant heat-insulation wall construction material, solve that decorative mortar that existing exterior-wall heat insulation material makes is easy to crack and the problem of poor durability, it is achieved that insulation truly, heat insulation, the high-performance of cracking resistance.
Description
Technical field
The present invention relates to building material technical field, particularly a kind of thermal-insulating and anti-cracking wall body building material and preparation side thereof
Method.
Background technology
External Thermal Insulation System can bring outstanding energy-saving effect and comfortable living environment, therefore people for
The long-term behaviour of this system gives the highest concern.At present, the protection mortar that external thermal insulation system overcoat uses mostly is crisp
Property cement-based material, than great, heat conductivity is high, accumulation of heat value is high；And warming plate mostly is organic insulation material, the little matter of its density
The soft deformation in ground is big, under the external worlds such as wet circulation the most cold and hot, cold, various stress repetition, solar radiation, raindrop erosion corrode,
There will be cracking, come off, efflorescence, the problem such as heat insulating effect variation, there is presently no that an engineering meets can durable years.
Owing to the outer heat preservation system of just completion is in hot environment, bust heavy rain, insulation material and protection mortar of wiping one's face are at nearly 50 degree
Cause ess-strain effect under the temperature difference, thus produce cracking.Cement-based polymers is modified by numerous research, producer
Split effect to control, but apply and still cannot effectively solve problem of Cracking on heat-insulation material surface.
Summary of the invention
Based on problem present in background technology, the present invention proposes a kind of crack-resistant heat-insulation wall construction material and preparation thereof
Method, described crack-resistant heat-insulation wall construction material, solve decorative mortar that existing exterior-wall heat insulation material makes easy to crack and
The problem of poor durability, it is achieved that insulation truly, heat insulation, the high-performance of cracking resistance.
A kind of crack-resistant heat-insulation wall construction material, its raw material includes by weight: cement 400-600 part, silicon powder 40-70
Part, sierozem power 80-220 part, expanded vermiculite 80-160 part, sandstone 60-100 part, hollow glass micropearl 60-100 part, rock wool silk
40-80 part, modified coal ash 30-80 part, granular polystyrene 60-120 part, wood fiber 10-20 part, polypropylene fibre 5-10 part is poly-
Vinyl alcohol powder 30-60 part, polymer dispersion powder end 40-80 part, cellulose ether 10-20 part；
Wherein, the method preparing described modified coal ash includes: flyash adds the mixed acid of concentrated nitric acid and concentrated sulphuric acid
In solution, ultrasonic place, it is cooled to sucking filtration after room temperature, washing, dry the flyash obtaining surface active；By described surface active
Flyash and silane coupler join supersound process in ethanol, sucking filtration, washing, dry the flyash obtaining grafting；By institute
The flyash stating grafting adds ultrasonic disperse in DMF, under conditions of nitrogen is protected, adds the performed polymer of terminal isocyanate group
With catalyst dibutyl tin dilaurate, after intensification, stirring reaction, adds chain extender, quickly stirs, continue to stir after evacuation
Mix, filter, washing, ripening in drying baker, obtain described modified coal ash.
In a specific embodiment, the weight portion of cement can be 420,430,450,460,480,500,520,540,
560、570、580、590；The weight portion of silicon powder can be 45,48,50,52,55,57,60,61,64,65,67,69；Ash calcium
The weight portion of powder can be 85,95,100,105,115,130,145,160,175,190,195,205,215；Expanded vermiculite
Weight portion can be 85,90,95,100,105,110,115,125,130,135,140,145,155；The weight portion of sandstone is permissible
It is 65,67,70,71,75,78,80,84,85,86,90,92,95,97；The weight portion of rock wool silk can be 45,47,50,51,
55、58、60、64、65、66、70、72、75、77；The weight portion of modified coal ash can be 33,35,38,41,43,47,50,
53、56、59、65、69、72、76、78；The weight portion of granular polystyrene can be 65,70,76,80,83,88,92,95,102,
110、115；The weight portion of the wood fiber can be 12,13,14,15,16,17,18,19；The weight portion of pva powder is permissible
It is 33,35,37,38,41,43,45,47,50,53,56,59；The weight portion at polymer dispersion powder end can be 41,43,47,
49、50、53、54、56、59、65、69、72、76、78；The weight portion of cellulose ether can be 11,12,13,14,15,16,17,
18、19。
Preferably, the method preparing described modified coal ash includes: the flyash of particle diameter >=20 mesh is added volume ratio is
The concentrated nitric acid of 1:3-5 is with the mixed acid solution of concentrated sulphuric acid, and supersound process 0.5-3h at 30-50 DEG C, the frequency of ultrasound wave is
20-40KHz, the sound intensity is 0.1-0.3W/cm2, it is cooled to sucking filtration after room temperature, washing, dry the flyash obtaining surface active；Will
The flyash of described surface active and silane coupler join in ethanol, supersound process 3-6h at 80-100 DEG C, ultrasound wave
Frequency be 20-40KHz, the sound intensity is 0.4-0.6W/cm2, sucking filtration, washing, dry the flyash obtaining grafting；Connect described
The flyash of cladodification adds ultrasonic disperse 0.5-1h in DMF, under conditions of nitrogen is protected, adds the pre-polymerization of terminal isocyanate group
Body and catalyst dibutyl tin dilaurate, after being warming up to 60-80 DEG C, stirring reaction 1-3h, adds chain extender, at rotating speed is
Quickly stir 0.01-0.02h under conditions of 1000-1200rpm, continue stirring 0.01-0.02h after evacuation, use polytetrafluoroethyl-ne
Alkene membrane filtration, washing, ripening 1-3h in the drying baker of 100-120 DEG C, obtain described modified coal ash；Preferably, flyash,
Silane coupler, the performed polymer of terminal isocyanate group, the weight proportion of chain extender are 1:0.02-0.05:0.4-0.6:0.1-
0.2。
Preferably, the method for the performed polymer preparing described terminal isocyanate group includes: PTMEG is warming up to 90-120
DEG C and be evacuated to after pressure≤-0.09Mpa be dehydrated 3-5h, be cooled to 40-60 DEG C, add isocyanates, be warming up to 80-
After 100 DEG C, stirring reaction 1-3h, obtains the performed polymer of terminal isocyanate group.
Preferably, described cement is the 42.5 grades of portland cements of P.O by mass percent 80-95% and 5-20%
CA-60 aluminate cement forms.
Preferably, described silicon powder and particle diameter all >=200 mesh of sierozem power；The particle diameter of described expanded vermiculite is 1.1-
4.7mm, wherein particle diameter be the weight percentage of expanded vermiculite of 1.1-2.6mm be 60-80%；The particle diameter of described sandstone is
0.8-1.6mm, it is preferable that described sandstone is the mixed of a kind of or at least two in quartz sand, dolomite sand, fluvial sand, sea sand
Compound.
Preferably, the bulk density of described hollow glass micropearl is 150-200kg/m3, heat conductivity is 0.028-
0.048W/m K.
Preferably, a length of 0.5-2mm of the described wood fiber；Described polypropylene fibre is chopped type, its a length of 5-
8mm, a diameter of 38-40mm；Preferably, the wood fiber is 15-17:6-8 with the weight proportion of polypropylene fibre.
Preferably, described polymer dispersion powder end be ethylene-vinyl acetate copolymer, vinyl acetate-versatic acid ethylene altogether
A kind of or the mixture of at least two in polymers, ethylene-vinyl laurate-vinyl chloride copolymer.
Preferably, the viscosity of described cellulose ether is 180000-200000mPa s；Preferably, described cellulose ether is hydroxyl
One in ethylmethylcellulose, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose or at least two
Mixture.
The preparation method of a kind of crack-resistant heat-insulation wall construction material, it is characterised in that including: by cement, silicon powder, ash calcium
Powder, expanded vermiculite, sandstone, pva powder, polymer dispersion powder end and cellulose ether add in mixer, stir 20-
Mix homogeneously after 30min；It is subsequently added into the wood fiber, polypropylene fibre, hollow glass micropearl and rock wool silk, stirs 3-4min；Again
Add modified coal ash and granular polystyrene, stir 5-10min, obtain described crack-resistant heat-insulation wall construction material.
In the present invention, described crack-resistant heat-insulation wall construction material uses portland cement and the aluminate cement of specific proportioning
As Binder Materials, and the silicon powder of certain content, sierozem power isoreactivity material is used to blend, thus to cement as gelling
The durability of material improves；Meanwhile, described construction material also uses expansion polystyrene, hollow glass
Glass microballon, modified coal ash, expanded vermiculite etc. are as heat insulation aggregate, and wherein said modified coal ash is by acid and silane coupler
After surface active, through polyurethane grafted intercalation, form a kind of brand-new cement inorganic material, recycle itself and glass bead
Gradation adjustment effect and parcel sealing process to granular polystyrene, is greatly improved the heat insulating ability of described wall body building material, executes
Work and fire protecting performance；Meanwhile, described modified technique also improves the interface phase of flyash and inorganic coagulation material etc.
Capacitive energy, thus can improve the performances such as the intensity of whole construction material, toughness, and silicon powder, sierozem power blend cement and formed
Binder Materials, the backfin of its mortar formed is than reducing, and fragility can obviously reduce, so that described wall body building material
Crack resistance is improved.
In the present invention, in addition to selecting specific Binder Materials and aggregate, also by adding, different types of fiber is long
Short collocation, utilizes its random distribution in the material and network structure, and the heat-insulation layer that disperses described material to be formed is internal should
Power, strengthens the pliability of heat-insulation layer, crack resistance, freeze-thawing resistant cyclicity；Especially selecting to add polypropylene fibre, it is at described material
Spuious arrangement in the mortar that material is formed, can effectively digest internal all directions and shrink the stress produced, the toughness of thermal insulation mortar
With crack resistance due in mortar the interconnection function of network of fibers obtained bigger improvement；Additionally, it is poly-also by adjusting in the present invention
The volume of the additives such as vinyl alcohol powder, polymer dispersion powder end, cellulose ether, fiber, improves the bonding of described construction material
Property, water-retaining property and crack resistance, make it meet heat-insulating property simultaneously.
Detailed description of the invention
Below by specific embodiment, technical scheme is described in detail.
Embodiment 1
A kind of crack-resistant heat-insulation wall construction material, its raw material includes by weight: cement 400 parts, silicon powder 70 parts, ash calcium
80 parts of powder, expanded vermiculite 160 parts, quartz sand 60 parts, hollow glass micropearl 100 parts, rock wool silk 40 parts, modified coal ash 80 parts,
Granular polystyrene 60 parts, the wood fiber 20 parts, polypropylene fibre 5 parts, pva powder 60 parts, ethylene-vinyl acetate copolymer 40
Part, hydroxyethylmethyl-cellulose 20 parts；
Wherein, the method preparing described modified coal ash includes: the flyash of particle diameter >=20 mesh is added volume ratio is 1:3
Concentrated nitric acid and concentrated sulphuric acid mixed acid solution in, supersound process 0.5h at 50 DEG C, the frequency of ultrasound wave is 40KHz, the sound intensity
For 0.1W/cm2, it is cooled to sucking filtration after room temperature, washing, dry the flyash obtaining surface active；Powder by described surface active
Coal ash and silane coupler join in ethanol, supersound process 3h at 100 DEG C, and the frequency of ultrasound wave is 40KHz, and the sound intensity is
0.4W/cm2, sucking filtration, washing, dry the flyash obtaining grafting；By in the flyash addition DMF of described grafting ultrasonic point
Dissipate 1h, under conditions of nitrogen is protected, add performed polymer and the catalyst dibutyl tin dilaurate of terminal isocyanate group, heat up
After 60 DEG C, stirring reaction 3h, adds chain extender, quickly stirs 0.02h, after evacuation under conditions of rotating speed is 1000rpm
Continue stirring 0.01h, use politef membrane filtration, washing, ripening 1h in the drying baker of 120 DEG C, obtain described modified powder
Coal ash；Wherein flyash, silane coupler, the performed polymer of terminal isocyanate group, the weight proportion of chain extender are 1:0.02:0.6:
0.1；The method of the performed polymer of described terminal isocyanate group includes: PTMEG is warming up to 90 DEG C and be evacuated to pressure≤-
It is dehydrated 5h after 0.09Mpa, is cooled to 40 DEG C, add isocyanates, stirring reaction 1h after being warming up to 100 DEG C, obtain holding isocyanide
The performed polymer of perester radical；
Described cement is the 42.5 grades of portland cements of P.O by mass percent 80% and the CA-60 aluminic acid saline of 20%
Mud forms；Described silicon powder and particle diameter all >=200 mesh of sierozem power；The particle diameter of described expanded vermiculite is 1.1-4.7mm, wherein grain
Footpath be the weight percentage of the expanded vermiculite of 1.1-2.6mm be 60%；The particle diameter of described quartz sand is 0.8-1.6mm；Described
The bulk density of hollow glass micropearl is 150kg/m3, heat conductivity is 0.048W/m K；The described wood fiber a length of
0.5mm；Described polypropylene fibre is chopped type, its a length of 8mm, a diameter of 38mm；Described polymer dispersion powder end be ethylene-
Acetate ethylene copolymer；The viscosity of described hydroxyethylmethyl-cellulose is 180000mPa s.
Embodiment 2
A kind of crack-resistant heat-insulation wall construction material, its raw material includes by weight: cement 600 parts, silicon powder 40 parts, ash calcium
220 parts of powder, expanded vermiculite 80 parts, dolomite sand 100 parts, hollow glass micropearl 60 parts, rock wool silk 80 parts, modified coal ash 30
Part, granular polystyrene 120 parts, the wood fiber 10 parts, polypropylene fibre 10 parts, pva powder 30 parts, vinyl acetate-versatic acid second
Alkene copolymer 80 parts, carboxymethyl cellulose 10 parts；
Wherein, the method preparing described modified coal ash includes: the flyash of particle diameter >=20 mesh is added volume ratio is 1:5
Concentrated nitric acid and concentrated sulphuric acid mixed acid solution in, supersound process 3h at 30 DEG C, the frequency of ultrasound wave is 20KHz, and the sound intensity is
0.3W/cm2, it is cooled to sucking filtration after room temperature, washing, dry the flyash obtaining surface active；Fine coal by described surface active
Ash and silane coupler join in ethanol, and supersound process 6h at 80 DEG C, the frequency of ultrasound wave is 20KHz, and the sound intensity is 0.6W/
cm2, sucking filtration, washing, dry the flyash obtaining grafting；The flyash of described grafting is added ultrasonic disperse in DMF
0.5h, under conditions of nitrogen is protected, adds performed polymer and the catalyst dibutyl tin dilaurate of terminal isocyanate group, heats up
After 80 DEG C, stirring reaction 1h, adds chain extender, quickly stirs 0.01h, after evacuation under conditions of rotating speed is 1200rpm
Continue stirring 0.02h, use politef membrane filtration, washing, ripening 3h in the drying baker of 100 DEG C, obtain described modified powder
Coal ash；Wherein flyash, silane coupler, the performed polymer of terminal isocyanate group, the weight proportion of chain extender are 1:0.05:0.4:
0.2；The method of the performed polymer of described terminal isocyanate group includes: PTMEG is warming up to 120 DEG C and be evacuated to pressure≤-
It is dehydrated 3h after 0.09Mpa, is cooled to 60 DEG C, add isocyanates, stirring reaction 3h after being warming up to 80 DEG C, obtain holding Carbimide.
The performed polymer of ester group；
Described cement is the 42.5 grades of portland cements of P.O by mass percent 95% and the CA-60 aluminic acid saline of 5%
Mud forms；Described silicon powder and particle diameter all >=200 mesh of sierozem power；The particle diameter of described expanded vermiculite is 1.1-4.7mm, wherein grain
Footpath be the weight percentage of the expanded vermiculite of 1.1-2.6mm be 80%；The particle diameter of described dolomite sand is 0.8-1.6mm；Institute
The bulk density stating hollow glass micropearl is 200kg/m3, heat conductivity is 0.028W/m K；The described wood fiber a length of
2mm；Described polypropylene fibre is chopped type, its a length of 5mm, a diameter of 40mm；The viscosity of described carboxymethyl cellulose is
200000mPa s.
Embodiment 3
A kind of crack-resistant heat-insulation wall construction material, its raw material includes by weight: cement 500 parts, silicon powder 55 parts, ash calcium
150 parts of powder, expanded vermiculite 120 parts, sea sand 80 parts, hollow glass micropearl 80 parts, rock wool silk 60 parts, modified coal ash 55 parts, poly-
Benzene granule 90 parts, the wood fiber 15 parts, polypropylene fibre 7 parts, pva powder 45 parts, ethylene-vinyl laurate-vinyl chloride
Copolymer 60 parts, hydroxyethyl cellulose 15 parts；
Wherein, the method preparing described modified coal ash includes: the flyash of particle diameter >=20 mesh is added volume ratio is 1:4
Concentrated nitric acid and concentrated sulphuric acid mixed acid solution in, supersound process 1.5h at 40 DEG C, the frequency of ultrasound wave is 30KHz, the sound intensity
For 0.2W/cm2, it is cooled to sucking filtration after room temperature, washing, dry the flyash obtaining surface active；Powder by described surface active
Coal ash and silane coupler join in ethanol, supersound process 4h at 90 DEG C, and the frequency of ultrasound wave is 30KHz, and the sound intensity is
0.5W/cm2, sucking filtration, washing, dry the flyash obtaining grafting；By in the flyash addition DMF of described grafting ultrasonic point
Dissipate 0.7h, under conditions of nitrogen is protected, add performed polymer and the catalyst dibutyl tin dilaurate of terminal isocyanate group, rise
Temperature stirs reaction 2h after 70 DEG C, adds chain extender, quickly stirs 0.01h, evacuation under conditions of rotating speed is 1100rpm
Rear continuation stirs 0.01h, uses politef membrane filtration, washing, and ripening 2h in the drying baker of 110 DEG C obtains described modification
Flyash；Wherein flyash, silane coupler, the performed polymer of terminal isocyanate group, the weight proportion of chain extender are 1:0.03:
0.5:0.15；The method of the performed polymer of described terminal isocyanate group includes: PTMEG is warming up to 100 DEG C and is evacuated to pressure
Being dehydrated 4h after power≤-0.09Mpa, be cooled to 50 DEG C, add isocyanates, after being warming up to 90 DEG C, stirring reaction 2h, is held
The performed polymer of NCO；
Described cement is the 42.5 grades of portland cements of P.O by mass percent 85% and the CA-60 aluminic acid saline of 15%
Mud forms；Described silicon powder and particle diameter all >=200 mesh of sierozem power；The particle diameter of described expanded vermiculite is 1.1-4.7mm, wherein grain
Footpath be the weight percentage of the expanded vermiculite of 1.1-2.6mm be 70%；The particle diameter of described sea sand is 0.8-1.6mm；Described sky
The bulk density of heart glass microballoon is 180kg/m3, heat conductivity is 0.038W/m K；The a length of 1.5mm of the described wood fiber；
Described polypropylene fibre is chopped type, its a length of 7mm, a diameter of 39mm；The viscosity of described hydroxyethyl cellulose is
190000mPa s.
Embodiment 4
A kind of crack-resistant heat-insulation wall construction material, its raw material includes by weight: cement 450 parts, silicon powder 60 parts, ash calcium
100 parts of powder, expanded vermiculite 130 parts, sandstone 90 parts, hollow glass micropearl 70 parts, rock wool silk 50 parts, modified coal ash 60 parts, poly-
Benzene granule 80 parts, the wood fiber 16 parts, polypropylene fibre 8 parts, pva powder 35 parts, 50 parts of polymer dispersion powder end, fiber
15 parts of ether of element；
Wherein, the method preparing described modified coal ash includes: the flyash of particle diameter >=20 mesh is added volume ratio is 1:4
Concentrated nitric acid and concentrated sulphuric acid mixed acid solution in, supersound process 2h at 45 DEG C, the frequency of ultrasound wave is 25KHz, and the sound intensity is
0.2W/cm2, it is cooled to sucking filtration after room temperature, washing, dry the flyash obtaining surface active；Fine coal by described surface active
Ash and silane coupler join in ethanol, and supersound process 5h at 85 DEG C, the frequency of ultrasound wave is 35KHz, and the sound intensity is 0.5W/
cm2, sucking filtration, washing, dry the flyash obtaining grafting；The flyash of described grafting is added ultrasonic disperse in DMF
0.8h, under conditions of nitrogen is protected, adds performed polymer and the catalyst dibutyl tin dilaurate of terminal isocyanate group, heats up
After 75 DEG C, stirring reaction 2h, adds chain extender, quickly stirs 0.02h, after evacuation under conditions of rotating speed is 1100rpm
Continue stirring 0.02h, use politef membrane filtration, washing, ripening 2h in the drying baker of 115 DEG C, obtain described modified powder
Coal ash；Wherein, flyash, silane coupler, the performed polymer of terminal isocyanate group, the weight proportion of chain extender are 1:0.04:
0.5:0.2；The method of the performed polymer of described terminal isocyanate group includes: PTMEG is warming up to 110 DEG C and is evacuated to pressure
Being dehydrated 4h after power≤-0.09Mpa, be cooled to 55 DEG C, add isocyanates, after being warming up to 85 DEG C, stirring reaction 2h, is held
The performed polymer of NCO；
Described cement is the 42.5 grades of portland cements of P.O by mass percent 90% and the CA-60 aluminic acid saline of 10%
Mud forms；Described silicon powder and particle diameter all >=200 mesh of sierozem power；The particle diameter of described expanded vermiculite is 1.1-4.7mm, wherein grain
Footpath be the weight percentage of the expanded vermiculite of 1.1-2.6mm be 75%；The particle diameter of described sandstone is 0.8-1.6mm, and described
Sandstone is the mixture of fluvial sand, sea sand；The bulk density of described hollow glass micropearl is 170kg/m3, heat conductivity is
0.038W/m K；The a length of 1.6mm of the described wood fiber；Described polypropylene fibre is chopped type, its a length of 6mm, a diameter of
39mm；Described polymer dispersion powder end is ethylene-vinyl acetate copolymer, the mixing of vinyl acetate-versatic acid ethylene copolymer
Thing；The viscosity of described cellulose ether is 190000mPa s；Described cellulose ether is hydroxyethyl cellulose, hydroxypropyl methyl fiber
The mixture of element.
The preparation method of the crack-resistant heat-insulation wall construction material described in above-described embodiment 1-4, including: by cement, silicon powder,
Sierozem power, expanded vermiculite, sandstone, pva powder, polymer dispersion powder end and cellulose ether add in mixer, stirring
Mix homogeneously after 20-30min；It is subsequently added into the wood fiber, polypropylene fibre, hollow glass micropearl and rock wool silk, stirs 3-4min；
Add modified coal ash and granular polystyrene, stir 5-10min, obtain described crack-resistant heat-insulation wall construction material.
In work progress, by weight 1:1-1.5, described crack-resistant heat-insulation wall construction material and water are configured, obtain
Crack-resistant heat-insulation wall mortar.
The mortar that crack-resistant heat-insulation wall construction material described in above-described embodiment 1-4 obtains is carried out performance test, result
As follows:
In the present invention, described crack-resistant heat-insulation wall construction material uses portland cement and the aluminate cement of specific proportioning
As Binder Materials, and the silicon powder of certain content, sierozem power isoreactivity material is used to blend, thus to cement as gelling
The durability of material improves；Meanwhile, described construction material also uses expansion polystyrene, hollow glass
Glass microballon, modified coal ash, expanded vermiculite etc. are as heat insulation aggregate, and wherein said modified coal ash is by acid and silane coupler
After surface active, through polyurethane grafted intercalation, form a kind of brand-new cement inorganic material, recycle itself and glass bead
Gradation adjustment effect and parcel sealing process to granular polystyrene, is greatly improved the heat insulating ability of described wall body building material, executes
Work and fire protecting performance；Meanwhile, described modified technique also improves the interface phase of flyash and inorganic coagulation material etc.
Capacitive energy, thus can improve the performances such as the intensity of whole construction material, toughness, and silicon powder, sierozem power blend cement and formed
Binder Materials, the backfin of its mortar formed is than reducing, and fragility can obviously reduce, so that described wall body building material
Crack resistance is improved.
In the present invention, in addition to selecting specific Binder Materials and aggregate, also by adding, different types of fiber is long
Short collocation, utilizes its random distribution in the material and network structure, and the heat-insulation layer that disperses described material to be formed is internal should
Power, strengthens the pliability of heat-insulation layer, crack resistance, freeze-thawing resistant cyclicity；Especially selecting to add polypropylene fibre, it is at described material
Spuious arrangement in the mortar that material is formed, can effectively digest internal all directions and shrink the stress produced, the toughness of thermal insulation mortar
With crack resistance due in mortar the interconnection function of network of fibers obtained bigger improvement；Additionally, it is poly-also by adjusting in the present invention
The volume of the additives such as vinyl alcohol powder, polymer dispersion powder end, cellulose ether, fiber, improves the bonding of described construction material
Property, water-retaining property and crack resistance, make it meet heat-insulating property simultaneously.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (10)
1. a crack-resistant heat-insulation wall construction material, it is characterised in that its raw material includes by weight: cement 400-600 part, silicon
Micropowder 40-70 part, sierozem power 80-220 part, expanded vermiculite 80-160 part, sandstone 60-100 part, hollow glass micropearl 60-100
Part, rock wool silk 40-80 part, modified coal ash 30-80 part, granular polystyrene 60-120 part, wood fiber 10-20 part, polypropylene fibre
5-10 part, pva powder 30-60 part, polymer dispersion powder end 40-80 part, cellulose ether 10-20 part；
Wherein, the method preparing described modified coal ash includes: flyash adds the mixed acid solution of concentrated nitric acid and concentrated sulphuric acid
In, supersound process, it is cooled to sucking filtration after room temperature, washing, dry the flyash obtaining surface active；Powder by described surface active
Coal ash and silane coupler join supersound process in ethanol, sucking filtration, washing, dry the flyash obtaining grafting；By described
The flyash of grafting adds ultrasonic disperse in DMF, under conditions of nitrogen is protected, add terminal isocyanate group performed polymer and
Catalyst dibutyl tin dilaurate, after intensification, stirring reaction, adds chain extender, quickly stirs, and continues stirring after evacuation,
Filter, washing, ripening in drying baker, obtain described modified coal ash.
Crack-resistant heat-insulation wall construction material the most according to claim 1, it is characterised in that prepare described modified coal ash
Method includes: it is in the concentrated nitric acid of 1:3-5 and the mixed acid solution of concentrated sulphuric acid that the flyash of particle diameter >=20 mesh adds volume ratio,
Supersound process 0.5-3h at 30-50 DEG C, the frequency of ultrasound wave is 20-40KHz, and the sound intensity is 0.1-0.3W/cm2, it is cooled to room
Sucking filtration after temperature, washing, dry the flyash obtaining surface active；Flyash and the silane coupler of described surface active are added
In ethanol, supersound process 3-6h at 80-100 DEG C, the frequency of ultrasound wave is 20-40KHz, and the sound intensity is 0.4-0.6W/cm2,
Sucking filtration, washing, dry the flyash obtaining grafting；The flyash of described grafting is added ultrasonic disperse 0.5-1h in DMF,
Under conditions of nitrogen is protected, add performed polymer and the catalyst dibutyl tin dilaurate of terminal isocyanate group, be warming up to 60-
After 80 DEG C, stirring reaction 1-3h, adds chain extender, quickly stirs 0.01-under conditions of rotating speed is 1000-1200rpm
0.02h, continues stirring 0.01-0.02h, uses politef membrane filtration after evacuation, washing, at the drying baker of 100-120 DEG C
Middle ripening 1-3h, obtains described modified coal ash；Preferably, flyash, silane coupler, the performed polymer of terminal isocyanate group,
The weight proportion of chain extender is 1:0.02-0.05:0.4-0.6:0.1-0.2.
Crack-resistant heat-insulation wall construction material the most according to claim 1 and 2, it is characterised in that prepare described end Carbimide.
The method of the performed polymer of ester group includes: be dehydrated after PTMEG being warming up to 90-120 DEG C and being evacuated to pressure≤-0.09Mpa
3-5h, is cooled to 40-60 DEG C, adds isocyanates, and after being warming up to 80-100 DEG C, stirring reaction 1-3h, obtains isocyanate terminated
The performed polymer of base.
4. according to the crack-resistant heat-insulation wall construction material described in any one of claim 1-3, it is characterised in that described cement be by
The CA-60 aluminate cement composition of 42.5 grades of portland cements of the P.O of mass percent 80-95% and 5-20%.
5. according to the crack-resistant heat-insulation wall construction material described in any one of claim 1-4, it is characterised in that described silicon powder with
Particle diameter all >=200 mesh of sierozem power；The particle diameter of described expanded vermiculite is 1.1-4.7mm, and wherein particle diameter is the expansion of 1.1-2.6mm
The weight percentage of Vermiculitum is 60-80%；The particle diameter of described sandstone is 0.8-1.6mm, it is preferable that described sandstone is quartz
The mixture of a kind of or at least two in sand, dolomite sand, fluvial sand, sea sand.
6. according to the crack-resistant heat-insulation wall construction material described in any one of claim 1-5, it is characterised in that described hollow glass
The bulk density of microballon is 150-200kg/m3, heat conductivity is 0.028-0.048W/m K.
7. according to the crack-resistant heat-insulation wall construction material described in any one of claim 1-6, it is characterised in that the described wood fiber
A length of 0.5-2mm；Described polypropylene fibre is chopped type, its a length of 5-8mm, a diameter of 38-40mm；Preferably, wood is fine
Dimension is 15-17:6-8 with the weight proportion of polypropylene fibre.
8. according to the crack-resistant heat-insulation wall construction material described in any one of claim 1-7, it is characterised in that described in dispersible breast
Rubber powder end is ethylene-vinyl acetate copolymer, vinyl acetate-versatic acid ethylene copolymer, ethylene-vinyl laurate-chloroethene
The mixture of a kind of or at least two in alkene copolymer.
9. according to the thermal-insulating and anti-cracking wall body building material described in any one of claim 1-8, it is characterised in that described cellulose ether
Viscosity be 180000-200000mPa s；Preferably, described cellulose ether is hydroxyethylmethyl-cellulose, carboxymethyl cellulose
The mixture of a kind of or at least two in element, hydroxyethyl cellulose, hydroxypropyl methyl cellulose.
10., according to a preparation method for the crack-resistant heat-insulation wall construction material described in any one of claim 1-9, its feature exists
In, including: by cement, silicon powder, sierozem power, expanded vermiculite, sandstone, pva powder, polymer dispersion powder end and fiber
Element ether adds in mixer, mix homogeneously after stirring 20-30min；It is subsequently added into the wood fiber, polypropylene fibre, hollow glass micro-
Pearl and rock wool silk, stir 3-4min；Add modified coal ash and granular polystyrene, stir 5-10min, obtain the insulation of described cracking resistance
Wall body building material.
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| CN108178564A (en) * | 2018-01-24 | 2018-06-19 | 成都三泰智能设备有限公司 | A kind of st types fire protection flame retarding composite material |
| CN108726937A (en) * | 2018-07-10 | 2018-11-02 | 安徽省神洲建材科技有限公司 | A kind of preferable thermal insulation mortar of cracking resistance and preparation method thereof |
| CN108793922A (en) * | 2018-08-16 | 2018-11-13 | 佛山舒宜添科技有限公司 | A kind of external wall insulation and preparation method thereof with excellent compression strength |
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| CN114412121A (en) * | 2021-12-31 | 2022-04-29 | 山东嘉腾实业有限公司 | Magnesium oxide light heat-insulation geothermal brick |
| CN116333590A (en) * | 2023-01-30 | 2023-06-27 | 汕头市俊国机电科技有限公司 | Gao Wenpen standard-resistant paint for steel and preparation method thereof |
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| CN106116425B (en) | 2018-01-12 |
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Inventor after: Hu Yong Inventor after: Qiu Yong Inventor after: Jiang Ziping Inventor after: Yin Wanyun Inventor after: Jin Rencai Inventor after: Tang Cuihong Inventor after: Sun Fei Inventor after: Cheng Gang Inventor before: Jiang Ziping Inventor before: Yin Wanyun Inventor before: Jin Rencai Inventor before: Tang Cuihong Inventor before: Hu Yong Inventor before: Qiu Yong Inventor before: Sun Fei Inventor before: Cheng Gang |
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Address after: 243000 Taibai Town Street, Dangtu County, Ma'anshan City, Anhui Province Patentee after: Anhui Tianjinyun Energy Saving and Waterproof Technology Co., Ltd. Address before: 243100 Taibai Town Street, Dangtu County, Ma'anshan City, Anhui Province Patentee before: Anhui Tianjinyun Paint Industry Co., Ltd. |