CN106082860B - A kind of expanded material and preparation method and application - Google Patents
A kind of expanded material and preparation method and application Download PDFInfo
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- CN106082860B CN106082860B CN201610430440.XA CN201610430440A CN106082860B CN 106082860 B CN106082860 B CN 106082860B CN 201610430440 A CN201610430440 A CN 201610430440A CN 106082860 B CN106082860 B CN 106082860B
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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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
Abstract
The present invention provides a kind of expanded material and preparation method and application, which includes the raw material of following parts by weight：Modified cement-based 80 110 parts, 0.5 3 parts of modified acrylic acid emulsion, 0.5 2 parts of polycarboxylate water-reducer, 0.5 1 parts of fiber, 6 11 parts of foaming agent, 30 60 parts of water.The present invention optimizes existing cement-based material foaming technique, it reduces dry density and thermal conductivity factor, increase its toughness, its dry density and thermal conductivity factor are allowed closer to organic plank, intensity and toughness properly increase on existing basis, the needs of construction can be met, the Material Fields such as building energy conservation, exterior-wall heat insulation, pipe insulation are specifically can be applied to.
Description
Technical field
The present invention relates to field of heat insulating materials, more particularly to a kind of expanded material and preparation method and application.
Background technology
Cement base foamed heat insulating heat-insulating material obtains the extensive concern of industry with its excellent physical property and economic performance,
One research and development upsurge is started.The common practice of cement base foamed heat insulating heat-insulating material is at present：First, Physical is by water and hair
Stable foam is made in infusion, is then mixed with cement slurry, and some strength is formed after being hardened in merging mold contains a large amount of stomatas
Heat-insulating material；Another kind is that chemical foaming agent such as hydrogen peroxide etc. is directly added into cement slurry, is placed in mold and hardens
Form the heat-insulating material of some strength.The cement foamed heat-insulating material of both the above is there are unit weight in 200kg/m3With
Upper, thermal conductivity factor is controlled in 0.065W/ (mK), with applying the phases such as more expansion polyphenyl plate, extruded sheet, phenolic board at present
5-10 times of the latter than, dry density, thermal conductivity factor is 2 times or so, there are poor toughness, it is frangible the defects of.
In order to meet the requirement of relevant specification of country and heat preservation, in a prior art situation, only increase the thickness of plank
Heat-insulating property could be improved, but the raising of sheet metal thickness will considerably increase own wt, it is difficult to meet the difficulty of external wall construction
It is required that and cost it is higher.
Invention content
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of expanded material and its preparation sides
Method and application, the problems such as solving thermal insulation material unit weight height, poor toughness, frangible, poor insulation property in the prior art.
In order to achieve the above objects and other related objects, first aspect present invention provides a kind of expanded material, including as follows
The raw material of parts by weight：
80-110 parts modified cement-based, 0.5-3 parts of modified acrylic acid emulsion, 0.5-2 parts of polycarboxylate water-reducer, fiber 0.5-
1 part, 6-11 parts of foaming agent, 30-60 parts of water.
Further, modified cement-based raw material and its weight ratio are cement：Mineral admixture：Modified crystal whiskers=(60-
110)：(0-40)：(2-8).
Further, the raw material of modified crystal whiskers and its weight ratio are whisker：Stearic acid：Coupling agent：Absolute ethyl alcohol：Liquid
Paraffin=(50-100)：(0.3-3)：(0.2-2)：(0-2)：(0-2).
Preferably, the whisker in modified crystal whiskers is one kind in calcium carbonate crystal whisker, calcium sulfate crystal whiskers, alkali magnesium sulfate crystal whisker
Or several combinations.
Preferably, in modified crystal whiskers coupling agent be titanate coupling agent, aluminate coupling agent, one kind in silane coupling agent
Or several combinations.
Further, the cement in modified cement-based is 42.5 grades of Portland cement, Portland cement 52.5
The combination of one or more of grade, sulphate aluminium cement, the mineral admixture are one or both of flyash, slag powders
Combination.Wherein, 42.5 grades of Portland cement, 52.5 grades of Portland cement meet《GB175-2007 common Portlands
Cement》Standard requirement, sulphate aluminium cement meets《GB20472-2006 sulphate aluminium cements》Standard requirement.Mineral are admixed
Flyash, slag powders in material are respectively that level-one flyash (meets《GB1596-2005 is used for the fine coal in cement and concrete
Ash》), S95 grades of slag powders (meet《GB/T 18046-2008 are used for the ground granulated blast furnace slag in cement and concrete》).
Further, the raw material of modified acrylic acid emulsion and its weight ratio are acrylic emulsion：Coupling agent：Water=(40-
60)：(0.5-3)：(10-25).
Preferably, coupling agent is titanate coupling agent, in aluminate coupling agent, silane coupling agent in modified acrylic acid emulsion
One or more combination, fiber is polypropylene fibre, one or both of basalt fibre combination, foaming agent are peroxidating
Aqueous solution of hydrogen.
Further, polycarboxylate water-reducer meets《Polycarboxylate high performance water-reducing agent JG/T 223-2007》Requirement.
Further, the mass concentration of aqueous hydrogen peroxide solution is 27.5%.
Second aspect of the present invention provides the preparation method of above-mentioned expanded material, includes the following steps：
1) modified crystal whiskers are prepared：Coupling agent is mixed with absolute ethyl alcohol or atoleine by formula ratio, then by the mixture
It is mixed with whisker, stearic acid, modified crystal whiskers is made, it is spare.
2) it prepares modified cement-based：Cement, modified crystal whiskers are mixed by formula ratio, are made modified cement-based, it is spare.
3) modified acrylic acid emulsion is prepared：Coupling agent, acrylic emulsion, water are mixed by formula ratio, stirs and evenly mixs, heats up
To 70-90 DEG C, mixing is again stirring for, modified acrylic acid emulsion is made, it is spare.
4) modified acrylic acid emulsion made from water, polycarboxylate water-reducer, fiber, step 3) is mixed, stirred and evenly mixed, then added
Enter modified cement-based made from step 2), stir and evenly mix, add the water of surplus, stir and evenly mix, add foaming agent, stir
Mixing is put into mold cured molding, finished product.
Further, in the step 1), when each raw material mixes, mixture temperature≤110 DEG C.
Third aspect present invention provides application of the above-mentioned expanded material as industrial heat preservation material, can specifically be used as building
Energy-saving material, external-wall heat-insulation material, pipe insulation material etc., have wide range of applications.
As described above, a kind of expanded material of the present invention and preparation method and application, has the advantages that：This hair
It is bright that existing cement-based material foaming technique is optimized, it reduces dry density and thermal conductivity factor, increase its toughness, allow its dry density
And thermal conductivity factor is properly increased closer to organic plank, intensity and toughness on existing basis, the needs of construction, tool can be met
Body can be used as energy-saving building materials, external-wall heat-insulation material, pipe insulation material etc., have wide range of applications.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.
In following embodiment, the manufacturer of acrylic emulsion is Shanghai Bao Lijia new materials Co., Ltd, model
168；The manufacturer of titanate coupling agent be green chemical industry auxiliary reagent factory of Tianzhang City, model TMC-TTS；Aluminate coupling agent
Producer be green chemical industry auxiliary reagent factory of Tianzhang City, model LS-822；The manufacturer of silane coupling agent is Tianzhang City's green chemical industry
Auxiliary reagent factory, model KH570.Certainly, the selection of acrylic emulsion, coupling agent is not limited to above-mentioned producer and its model.
Embodiment 1
A kind of expanded material includes the raw material of following parts by weight：
Modified cement-based 80 parts, 0.5 part of modified acrylic acid emulsion, 0.5 part of polycarboxylate water-reducer, 0.5 part of fiber, foaming agent
8 parts, 38 parts of water.
Modified cement-based raw material and its weight ratio are cement：Mineral admixture：Modified crystal whiskers=80：20：2, it is modified brilliant
The raw material and its weight ratio of palpus are whisker：Stearic acid：Coupling agent：Atoleine=50：0.3：0.2：0.2, in modified crystal whiskers
Whisker is calcium carbonate crystal whisker, and coupling agent is titanate coupling agent in modified crystal whiskers, it is modified cement-based in cement be common silicic acid
42.5 grades of salt cement, mineral admixture (meet for S95 grades of slag powders《GB/T 18046-2008 are used in cement and concrete
Ground granulated blast furnace slag》), the raw material and its weight ratio of modified acrylic acid emulsion are acrylic emulsion：Coupling agent：Water=40：
0.5：10, coupling agent is titanate coupling agent in modified acrylic acid emulsion, and polycarboxylate water-reducer meets《Polycarboxylic acid series high-performance subtracts
Aqua JG/T223-2007》Requirement, fiber is polypropylene fibre, and foaming agent is aqueous hydrogen peroxide solution, and hydrogen peroxide is water-soluble
The mass concentration of liquid is 27.5%.
The preparation method of above-mentioned expanded material includes the following steps：
1) modified crystal whiskers are prepared：Coupling agent, atoleine are mixed by formula ratio so that coupling agent is diluted, by whisker
It is put into high-speed mixer and stirs, diluted coupling agent is uniformly sprayed onto whisker surface stirs 4-6 minutes, then by stearic acid
It is put into homogenizer, 3000 turns/min of rotating speed, stirs 15-20min, material can generate heat in whipping process, therefore, in order to keep away
Exempt to be denaturalized, whipping temp≤110 DEG C (can carry out temperature control operation) by means such as intermittence stirring or water-baths, be made modified brilliant
Must, it is spare.
2) it prepares modified cement-based：Cement, modified crystal whiskers are mixed by formula ratio, are made modified cement-based, it is spare.
3) modified acrylic acid emulsion is prepared：Coupling agent, acrylic emulsion, water are mixed by formula ratio, stir 2min (rotating speeds
200 turns/min), mixing is warming up to 70 DEG C, stirring 30min (450 turns/min of rotating speed), and modified acrylic acid emulsion is made in mixing,
It is spare.
4) by modified propylene made from water (weight of water is the 1/2 of total weight), polycarboxylate water-reducer, fiber, step 3)
Yogurt liquid mixes, and stirs 30s, mixing, adds modified cement-based made from step 2), stirs 10s, mixing adds residue
The water (i.e. the weight of water is the 1/2 of total weight) of amount, stirs 60s, mixing adds foaming agent, stirs 4s, and mixing is put into mould
Have curing molding, finished product.
Embodiment 2
A kind of expanded material includes the raw material of following parts by weight：
Modified cement-based 90 parts, 1 part of modified acrylic acid emulsion, 1 part of polycarboxylate water-reducer, 0.7 part of fiber, foaming agent 8.5
Part, 35 parts of water.
Modified cement-based raw material and its weight ratio are cement：Mineral admixture：Modified crystal whiskers=60：40：4, it is modified brilliant
The raw material and its weight ratio of palpus are whisker：Stearic acid：Coupling agent=60：1：0.5, the whisker in modified crystal whiskers is brilliant for calcium sulfate
Must, coupling agent is aluminate coupling agent in modified crystal whiskers, it is modified cement-based in cement be 52.5 grades of Portland cement, ore deposit
Object admixture (meets for level-one flyash《GB1596-2005 is used for the flyash in cement and concrete》), modified acroleic acid
The raw material and its weight ratio of lotion are acrylic emulsion：Coupling agent：Water=45：1：15.Coupling agent is in modified acrylic acid emulsion
Aluminate coupling agent, polycarboxylate water-reducer meet《Polycarboxylate high performance water-reducing agent JG/T 223-2007》Requirement, fiber is
Basalt fibre, foaming agent are aqueous hydrogen peroxide solution, and the mass concentration of aqueous hydrogen peroxide solution is 27.5%.
The preparation method of above-mentioned expanded material includes the following steps：
1) modified crystal whiskers are prepared：Whisker is put into high-speed mixer and is stirred, is uniformly spread to whisker after coupling agent is disperseed
Surface is stirred 4-6 minutes, then stearic acid is put into homogenizer, 3000 turns/min of rotating speed, stirs 30min, stirred
Material can generate heat in journey, and therefore, in order to avoid denaturation, whipping temp≤110 DEG C (can pass through the hands such as intermittence stirring or water-bath
Duan Jinhang temperature controls operate), modified crystal whiskers are made, it is spare.
2) it prepares modified cement-based：Cement, modified crystal whiskers are mixed by formula ratio, are made modified cement-based, it is spare.
3) modified acrylic acid emulsion is prepared：Coupling agent, acrylic emulsion, water are mixed by formula ratio, stir 2min (rotating speeds
220 turns/min), mixing is warming up to 75 DEG C, stirring 30min (460 turns/min of rotating speed), and modified acrylic acid emulsion is made in mixing,
It is spare.
4) by modified propylene made from water (weight of water is the 1/2 of total weight), polycarboxylate water-reducer, fiber, step 3)
Yogurt liquid mixes, and stirs 35s, mixing, adds modified cement-based made from step 2), stirs 12s, mixing adds residue
The water (i.e. the weight of water is the 1/2 of total weight) of amount, stirs 65s, mixing adds foaming agent, stirs 5s, and mixing is put into mould
Have curing molding, finished product.
Embodiment 3
A kind of expanded material includes the raw material of following parts by weight：
Modified cement-based 95 parts, 1.5 parts of modified acrylic acid emulsion, 1.5 parts of polycarboxylate water-reducer, 0.8 part of fiber, foaming agent
9 parts, 40 parts of water.
Modified cement-based raw material and its weight ratio are cement：Modified crystal whiskers=95：5, the raw material of modified crystal whiskers and its again
Amount is than being whisker：Stearic acid：Coupling agent：Absolute ethyl alcohol=80：1.5：1：1, the whisker in modified crystal whiskers is brilliant for alkali magnesium sulfate
Must, coupling agent is silane coupling agent in modified crystal whiskers, it is modified cement-based in cement be sulphate aluminium cement and normal silicate
The mixture that 42.5 grades of cement, the raw material and its weight ratio of modified acrylic acid emulsion are acrylic emulsion：Coupling agent：Water=50：
1.5：20.Coupling agent is silane coupling agent in modified acrylic acid emulsion, and polycarboxylate water-reducer meets《Polycarboxylic acid series high-performance diminishing
Agent JG/T223-2007》Requirement, fiber for polypropylene fibre, basalt fibre mixture, foaming agent is aquae hydrogenii dioxidi
Solution, the mass concentration of aqueous hydrogen peroxide solution is 27.5%.
The preparation method of above-mentioned expanded material includes the following steps：
1) modified crystal whiskers are prepared：Coupling agent, absolute ethyl alcohol are mixed by formula ratio so that coupling agent is diluted, by whisker
It is put into high-speed mixer and stirs, diluted coupling agent is uniformly sprayed onto whisker surface stirs 4-6 minutes, then by stearic acid
It being put into homogenizer, 3000 turns/min of rotating speed, stirs 30min, material can generate heat in whipping process, therefore, in order to avoid
Denaturation, whipping temp≤110 DEG C (can carry out temperature control operation by means such as intermittence stirring or water-baths), be made modified brilliant
Must, it is spare.
2) it prepares modified cement-based：Cement, modified crystal whiskers are mixed by formula ratio, are made modified cement-based, it is spare.
3) modified acrylic acid emulsion is prepared：Coupling agent, acrylic emulsion, water are mixed by formula ratio, stir 2min (rotating speeds
250 turns/min), mixing is warming up to 80 DEG C, stirring 30min (470 turns/min of rotating speed), and modified acrylic acid emulsion is made in mixing,
It is spare.
4) by modified propylene made from water (weight of water is the 1/2 of total weight), polycarboxylate water-reducer, fiber, step 3)
Yogurt liquid mixes, and stirs 40s, mixing, adds modified cement-based made from step 2), stirs 15s, mixing adds residue
The water (i.e. the weight of water is the 1/2 of total weight) of amount, stirs 70s, mixing adds foaming agent, stirs 6s, and mixing is put into mould
Have curing molding, finished product.
Embodiment 4
A kind of expanded material includes the raw material of following parts by weight：
Modified cement-based 100 parts, 2 parts of modified acrylic acid emulsion, 1.8 parts of polycarboxylate water-reducer, 0.9 part of fiber, foaming agent
10 parts, 48 parts of water.
Modified cement-based raw material and its weight ratio are cement：Modified crystal whiskers=100：7, the raw material of modified crystal whiskers and its again
Amount is than being whisker：Stearic acid：Coupling agent：Atoleine=90：2：1.5：1.5, the whisker in modified crystal whiskers is calcium carbonate crystal whisker,
The mixture of calcium sulfate crystal whiskers, in modified crystal whiskers coupling agent be titanate coupling agent, the mixture of aluminate coupling agent, modified water
Cement in mud base is 42.5 grades of Portland cement, the mixture of 52.5 grades of Portland cement, modified propylene yogurt
The raw material and its weight ratio of liquid are acrylic emulsion：Coupling agent：Water=55：2：25.Coupling agent is aluminium in modified acrylic acid emulsion
The mixture of acid esters coupling agent, silane coupling agent, polycarboxylate water-reducer meet《Polycarboxylate high performance water-reducing agent JG/T 223-
2007》Requirement, fiber is polypropylene fibre, and foaming agent is aqueous hydrogen peroxide solution, the mass concentration of aqueous hydrogen peroxide solution
It is 27.5%.
The preparation method of above-mentioned expanded material includes the following steps：
1) modified crystal whiskers are prepared：Coupling agent, atoleine are mixed by formula ratio so that coupling agent is diluted, by whisker
It is put into high-speed mixer and stirs, diluted coupling agent is uniformly sprayed onto whisker surface stirs 4-6 minutes, then by stearic acid
It being put into homogenizer, 3000 turns/min of rotating speed, stirs 30min, material can generate heat in whipping process, therefore, in order to avoid
Denaturation, whipping temp≤110 DEG C (can carry out temperature control operation by means such as intermittence stirring or water-baths), be made modified brilliant
Must, it is spare.
2) it prepares modified cement-based：Cement, modified crystal whiskers are mixed by formula ratio, are made modified cement-based, it is spare.
3) modified acrylic acid emulsion is prepared：Coupling agent, acrylic emulsion, water are mixed by formula ratio, stir 2min (rotating speeds
280 turns/min), mixing is warming up to 85 DEG C, stirring 30min (490 turns/min of rotating speed), and modified acrylic acid emulsion is made in mixing,
It is spare.
4) by modified propylene made from water (weight of water is the 1/2 of total weight), polycarboxylate water-reducer, fiber, step 3)
Yogurt liquid mixes, and stirs 50s, mixing, adds modified cement-based made from step 2), stirs 18s, mixing adds residue
The water (i.e. the weight of water is the 1/2 of total weight) of amount, stirs 80s, mixing adds foaming agent, stirs 6s, and mixing is put into mould
Have curing molding, finished product.
Embodiment 5
A kind of expanded material includes the raw material of following parts by weight：
Modified cement-based 110 parts, 3 parts of modified acrylic acid emulsion, 2 parts of polycarboxylate water-reducer, 1 part of fiber, 11 parts of foaming agent,
50 parts of water.
Modified cement-based raw material and its weight ratio are cement：Modified crystal whiskers=110：8, the raw material of modified crystal whiskers and its again
Amount is than being whisker：Stearic acid：Coupling agent：Absolute ethyl alcohol=100：3：2：2, the whisker in modified crystal whiskers is calcium carbonate crystal whisker, sulphur
The mixture of sour calcium pyroborate, alkali magnesium sulfate crystal whisker, the weight ratio of coupling agent and absolute ethyl alcohol is 1 in modified crystal whiskers：1, it is modified
In whisker coupling agent for titanate coupling agent, aluminate coupling agent, silane coupling agent mixture, it is modified cement-based in cement
For 42.5 grades of Portland cement, 52.5 grades of Portland cement, sulphate aluminium cement mixture, modified propylene yogurt
The raw material and its weight ratio of liquid are acrylic emulsion：Coupling agent：Water=60：3：23.Coupling agent is titanium in modified acrylic acid emulsion
Acid esters coupling agent, aluminate coupling agent, silane coupling agent mixture, polycarboxylate water-reducer meets《Polycarboxylic acid series high-performance subtracts
Aqua JG/T 223-2007》Requirement, fiber for polypropylene fibre, basalt fibre mixture, foaming agent is hydrogen peroxide
Aqueous solution, the mass concentration of aqueous hydrogen peroxide solution is 27.5%.
The preparation method of above-mentioned expanded material includes the following steps：
1) modified crystal whiskers are prepared：Coupling agent, absolute ethyl alcohol are mixed by formula ratio, whisker is put into high-speed mixer and is stirred
It mixes, diluted coupling agent is uniformly sprayed onto whisker surface stirs 4-6 minutes, and then stearic acid is put into homogenizer,
3000 turns/min of rotating speed stirs 30min, and material can generate heat in whipping process, therefore, in order to avoid denaturation, whipping temp≤110
DEG C (can pass through the intermittent means such as water-bath that stir and carry out temperature control operation), is made modified crystal whiskers, spare.
2) it prepares modified cement-based：Cement, modified crystal whiskers are mixed by formula ratio, are made modified cement-based, it is spare.
3) modified acrylic acid emulsion is prepared：Coupling agent, acrylic emulsion, water are mixed by formula ratio, stir 2min (rotating speeds
300 turns/min), mixing is warming up to 90 DEG C, stirring 30min (500 turns/min of rotating speed), and modified acrylic acid emulsion is made in mixing,
It is spare.
4) by modified propylene made from water (weight of water is the 1/2 of total weight), polycarboxylate water-reducer, fiber, step 3)
Yogurt liquid mixes, and stirs 60s, mixing, adds modified cement-based made from step 2), stirs 20s, mixing adds residue
The water (i.e. the weight of water is the 1/2 of total weight) of amount, stirs 90s, mixing adds foaming agent, stirs 7s, and mixing is put into mould
Have curing molding, finished product.
Performance detection
Expanded material made from above-described embodiment 1-5 is subjected to performance detection, result such as following table：
Expanded material testing result made from 1 each embodiment of table
From upper table 1 it is found that the unit weight of expanded material made from 1-5 of the embodiment of the present invention is 135-198kg/m3, heat conduction system
Number is 0.054-0.059W/ (mK), unit weight and thermal conductivity factor closer to organic plank, compression strength 0.53-
0.78MPa, tensile strength 0.12-0.15Mpa, volume water absorption rate is 3.9-8.7%, according to Chongqing City's engineering construction standard
DBJ50/T-185-2014, expanded material produced by the present invention are far below 250kg/m in unit weight3Under the premise of, compression strength
>=0.5MPa, tensile strength >=0.12MPa, thermal conductivity factor≤0.070W/ (mK) on the one hand effectively improve intensity, the opposing party
Face effectively reduces thermal conductivity factor, also, water absorption rate is less than 10%.
In conclusion the present invention effectively reduces the dry density and thermal conductivity factor of thermal insulation material, increase its toughness, it is allowed to do and is held
Weight and thermal conductivity factor are properly increased closer to organic plank, intensity and toughness on the basis of existing, can meet construction
It needs, specifically can be applied to the field of heat insulating materials such as building energy conservation, exterior-wall heat insulation, pipe insulation.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (8)
1. a kind of expanded material, which is characterized in that include the raw material of following parts by weight：
80-110 parts modified cement-based, 0.5-3 parts of modified acrylic acid emulsion, 0.5-2 parts of polycarboxylate water-reducer, fiber 0.5-
1 part, 6-11 parts of foaming agent, 30-60 parts of water；The modified cement-based raw material and its weight ratio are cement：Mineral admixture：
Modified crystal whiskers=（60-110）：（0-40）（2-8）, the raw material and its weight ratio of the modified crystal whiskers are whisker：Stearic acid：Coupling
Agent：Absolute ethyl alcohol：Atoleine=（50-100）：（0.3-3）：（0.2-2）：（0-2）：（0-2）, by formula ratio by coupling agent with
Absolute ethyl alcohol or atoleine mixing, then the mixture is mixed with whisker, stearic acid, the modified crystal whiskers are made.
2. expanded material according to claim 1, it is characterised in that：Whisker in the modified crystal whiskers is brilliant for calcium carbonate
The combination of one or more of palpus, calcium sulfate crystal whiskers, alkali magnesium sulfate crystal whisker.
3. expanded material according to claim 1, it is characterised in that：Coupling agent in the modified crystal whiskers is even for titanate esters
Join one or more of agent, aluminate coupling agent, silane coupling agent combination.
4. expanded material according to claim 1, it is characterised in that：It is described it is modified cement-based in cement be common silicic acid
The combination of one or more of 42.5 grades of salt cement, 52.5 grades of Portland cement, sulphate aluminium cement, the mineral blending
Expect for the combination of one or both of flyash, slag powders.
5. expanded material according to claim 1, it is characterised in that：The raw material and its weight of the modified acrylic acid emulsion
Than for acrylic emulsion：Coupling agent：Water=（40-60）：（0.5-3）：（10-25）.
6. expanded material according to claim 5, it is characterised in that：Coupling agent in the modified acrylic acid emulsion is titanium
The combination of one or more of acid esters coupling agent, aluminate coupling agent, silane coupling agent, the fiber are polypropylene fibre, profound
The combination of one or both of military rock fiber, the foaming agent are aqueous hydrogen peroxide solution.
7. according to the preparation method of expanded material described in claim 1-6 any one, which is characterized in that include the following steps：
1）Prepare modified crystal whiskers：Coupling agent is mixed with absolute ethyl alcohol or atoleine by formula ratio, then by the mixture with it is brilliant
Palpus, stearic acid mixing, are made modified crystal whiskers, spare；
2）It prepares modified cement-based：Cement, mineral admixture, modified crystal whiskers are mixed by formula ratio, are made modified cement-based, it is standby
With；
3）Prepare modified acrylic acid emulsion：Coupling agent, acrylic emulsion, water are mixed by formula ratio, stirs and evenly mixs, is warming up to
70-90 DEG C, mixing is again stirring for, modified acrylic acid emulsion is made, it is spare；
4）By water, polycarboxylate water-reducer, fiber, step 3）Modified acrylic acid emulsion mixing obtained, stirs and evenly mixs, adds step
Rapid 2）It is obtained modified cement-based, it stirs and evenly mixs, adds the water of surplus, stir and evenly mix, add foaming agent, stirring is mixed
It is even, it is put into mold cured molding, finished product.
8. according to application of the claim 1-6 any one of them expanded material as industrial heat preservation material.
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| CN102674771A (en) * | 2012-05-18 | 2012-09-19 | 大连理工大学 | High iron slag power doped wave-absorbing foam concrete and preparation method thereof |
| CN103664011A (en) * | 2013-12-13 | 2014-03-26 | 江苏省一夫新材料科技有限公司 | Cement-based composite material and preparation method thereof |
| CN104761281A (en) * | 2015-03-27 | 2015-07-08 | 中国十七冶集团有限公司 | Inflaming retarding high-temperature-resisting foam concrete and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102674771A (en) * | 2012-05-18 | 2012-09-19 | 大连理工大学 | High iron slag power doped wave-absorbing foam concrete and preparation method thereof |
| CN103664011A (en) * | 2013-12-13 | 2014-03-26 | 江苏省一夫新材料科技有限公司 | Cement-based composite material and preparation method thereof |
| CN104761281A (en) * | 2015-03-27 | 2015-07-08 | 中国十七冶集团有限公司 | Inflaming retarding high-temperature-resisting foam concrete and preparation method thereof |
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