CN107805079A - A kind of cement fly ash foaming insulation material - Google Patents
A kind of cement fly ash foaming insulation material Download PDFInfo
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- CN107805079A CN107805079A CN201711047017.2A CN201711047017A CN107805079A CN 107805079 A CN107805079 A CN 107805079A CN 201711047017 A CN201711047017 A CN 201711047017A CN 107805079 A CN107805079 A CN 107805079A
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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
- 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
- C04B2111/40—Porous or lightweight materials
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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
- 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
Abstract
The invention discloses a kind of cement fly ash foaming insulation material, belong to building material technical field.The present invention by graphite powder and liquor potassic permanganate, mix, sulphur acid for adjusting pH is added dropwise, heating stirring is reacted, and is filtered, graphite oxide powder is produced, by cement, flyash, hydrogen peroxide, modification bamboo charcoal fiber, silane coupler, graphite oxide powder, water are placed in batch mixer, high-speed stirred mixing, mixed slurry is obtained, then releasing agent is sprayed into mould, then injects mixed slurry in mould, stand, the demoulding, produce cement fly ash foaming insulation material.Cement fly ash foaming insulation material provided by the invention has excellent heat-insulating property and mechanical property.
Description
Technical field
The invention discloses a kind of cement fly ash foaming insulation material, belong to building material technical field.
Background technology
Building energy conservation is the main contents for performing national environmental protection and saving energy policy, is to realize " 21st century
One of important measures of the strategy of sustainable development ", Novel wall body heat insulation material are the very important rings of building energy conservation.Traditional
Although organic insulation material has the advantages that heat insulation property is good, machinability is strong, there is easy to aging, durability in it simultaneously
The shortcomings of difference, easy firing.And foam cement is mechanically prepared by foaming agent water solution by the foamed system of foaming machine
Be added into foam, then by foam in cement slurry, then foam be added in cement slurry, blended stirring, moulding by casting,
A kind of porous material formed is conserved, as a kind of novel building energy-saving and heat-insulating material, fire protecting performance is good, and it is non-ignitable to belong to A levels for it
Material, have the characteristics that light, thermal and insulating performance is good.But it exist simultaneously poor slurry stability, low intensity, shrinkage factor it is big,
Water suction easy to crack, the shortcomings of toughness is poor, limit its application in energy saving building engineering.
The implementation come with Building Energy Conservation Policy of energy crisis, wall heat insulation material particularly organic heat-insulating material is promoted
The fast development of material.However, again limit it because organic insulation material burning causes the generation in succession of fire incident in recent years and enter
The popularization and application of one step, fire-type wall heat insulation material is caused to turn into the new lover of insulation material.Inorganic heat insulation material is more organic
For insulation material, have the advantages that fire line is good, anti-flammability is strong, high with base course wall adhesion strength, can be very good to meet
The requirement of wall heat insulation material, application development prospect are wide.
Cement fly ash foaming insulation material is for material with Portland cement, flyash, foaming agent, additive etc.
Material, it is in concrete through lightweight balloon shape heat-insulating material made of technique, its prominent features such as compound, stirring, foaming, cuttings
Portion is formed.But at present also there is heat-insulating property in traditional cement fly ash foaming insulation material and compression strength is bad asks
Topic, therefore also need to study it.
The content of the invention
The present invention solves the technical problem of：For the fly ash foamed insulation material heat-insulating property of conventional cement and power
Learn the problem of performance is bad, there is provided a kind of cement fly ash foaming insulation material.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of cement fly ash foaming insulation material, is made up of the raw material of following parts by weight：
40~50 parts of cement
20~30 parts of flyash
8~10 parts of hydrogen peroxide
10~20 parts of modification bamboo charcoal fiber
5~6 parts of silane coupler
8~10 parts of graphite oxide powder
60~80 parts of water
The preparation process of the modification bamboo charcoal fiber is：
（1）It is 8~10% by bamboo fibre drying to moisture content, obtains dry bamboo fibre；
（2）Bamboo fibre and tetraethyl orthosilicate in mass ratio 1 will be dried：20~1：30 are mixed with dipping, filtering, must pre-process bamboo fibre
Dimension；
（3）The nitrogen charging insulation of pretreatment bamboo fibre is carbonized, obtains single treatment bamboo-carbon fibre；
（4）By single treatment bamboo-carbon fibre and casein solution in mass ratio 1：20~1：30 are mixed with dipping, and filtering, dry to aqueous
Rate is 8~10%, obtains after-treatment bamboo-carbon fibre；
（5）By after-treatment bamboo-carbon fibre and butyl titanate in mass ratio 1：20~1：30 are mixed with dipping, and filter, and dry, obtain
Bamboo-carbon fibre is handled three times；
（6）Bamboo-carbon fibre and water in mass ratio 1 will be handled three times：50~1：100 mixing, soak, filtering, and drying to moisture content is
8~10%, obtain four processing bamboo-carbon fibres；
（7）By four processing bamboo-carbon fibres and tetraethyl orthosilicate in mass ratio 1：20~1：30 are mixed with dipping, and filtering, obtain at five times
Manage bamboo-carbon fibre；
（8）By five processing bamboo-carbon fibres and nitration mixture in mass ratio 1：20~1：30 mixing, heating reflux reaction, are filtered, washing,
Obtain six processing bamboo-carbon fibres；
（9）By six processing bamboo-carbon fibres and butyl titanate in mass ratio 1：20~1：30 are mixed with dipping, filtering, modification bamboo charcoal
Fiber.
The cement is portland cement, any one in Portland cement or portland-pozzolan cement.
The silane coupler is silane resin acceptor kh-550, in silane coupler KH-560 or Silane coupling reagent KH-570
Any one.
The preparation process of the graphite oxide powder is：By graphite powder and liquor potassic permanganate in mass ratio 1：50~1：100
Mixing, sulphur acid for adjusting pH is added dropwise to 4.3~4.4, heating stirring reaction, filtering, produces graphite oxide powder.
Step（8）The nitration mixture is by sulfuric acid and nitric acid in mass ratio 1：1~1：2 mix；The quality of the sulfuric acid
Fraction is 70~80%；The mass fraction of the nitric acid is 50~60%.
The beneficial effects of the invention are as follows：
The present invention is by adding modification bamboo charcoal fiber, first, by bamboo fibre drying to certain moisture content so that bamboo fibre central part
Divide aqueous, the dipping through tetraethyl orthosilicate so that bamboo fibre internal moisture and tetraethyl orthosilicate reaction generation silica, generation
Silicon dioxide compact be filled in fibrillar center, lift the mechanical property of system, then warm charing, lift the energy of adsorption of fiber
Power, then soaked through casein, the adsorption capacity of fiber is further lifted, is soaked through drying to certain moisture content, then through butyl titanate
Stain, the water in fiber react with butyl titanate, generate titanium dioxide, and the titanium dioxide of generation is filled in fibers intermediate layers, then
Through water retting and drying so that contain certain moisture in system, then soaked through tetraethyl orthosilicate, tetraethyl orthosilicate reacts with water,
The silica-filled mechanical property in secondary outer layer, further lifting system of generation, reacts, two filled in fiber through nitration mixture
Titanium oxide and acid reaction, it is depleted to be filled in titanium dioxide in cell so that it is porous that intermediate layer forms many fine uniforms
Structure, the porous structure of fine uniform is advantageous to absorb heat, and the heat into inside system is slowly discharged, lifting body
The heat-insulating property of system, then soaked through butyl titanate so that the fine and close titanium dioxide of outermost layer filling, on the one hand, lifting system
Mechanical property, on the other hand, avoid in fiber silica from directly participating in hydrated cementitious from outside, in addition, silica and
Titanium dioxide poor thermal conductivity, when heat enters in modification bamboo charcoal fiber, delay in the fibre in complicated and elongated fibre structure
It is slow to transmit, the loss of heat is reduced, further enhances the heat-insulating property of system.
Embodiment
By the liquor potassic permanganate in mass ratio 1 that graphite powder and mass fraction are 20~30%：50~1：100 are placed in three mouthfuls
In flask, and three-necked flask is placed in digital display and tested the speed in constant temperature blender with magnetic force, then be added dropwise with rubber head dropper into three-necked flask
Mass fraction is 20~30% sulphur acid for adjusting pH to 4.3~4.4, is 80~85 DEG C in temperature, rotating speed is 300~400r/min bars
Under part, after heating stirring reacts 1~2h, filtering, graphite oxide powder is produced；By the sulfuric acid and quality that mass fraction is 70~80%
Fraction is 50~60% nitric acid in mass ratio 1：1~1：2 add in No. 1 beaker, under the conditions of rotating speed is 500~600r/min,
40~60min is stirred, obtains nitration mixture；Bamboo fibre is placed in baking oven, it is 8~10% to dry to moisture content, and it is fine to obtain dry bamboo
Dimension；Bamboo fibre and tetraethyl orthosilicate in mass ratio 1 will be dried：20~1：30 add No. 2 beakers in, in rotating speed be 400~500r/
Under the conditions of min, after being stirred 40~60min of dipping, filtering, pretreatment bamboo fibre is obtained；Pretreatment bamboo fibre is placed in charing
In stove, and nitrogen is filled with into stove by 50~60mL/min of speed, under the conditions of temperature is 450~550 DEG C, is protected in nitrogen
Under the conditions of, after 1~2h of insulation charing, room temperature is down to stove, obtains single treatment bamboo-carbon fibre；By single treatment bamboo-carbon fibre and matter
Measure the casein solution in mass ratio 1 that concentration is 2g/L：20~1：30 are placed in No. 3 beakers, in rotating speed be 300~400r/min,
After being stirred 40~60min of dipping, filtering, filter residue is obtained, then filter residue is placed in baking oven, it is 8~10% to dry to moisture content,
Obtain after-treatment bamboo-carbon fibre；By after-treatment bamboo-carbon fibre and butyl titanate in mass ratio 1：20~1：30 are placed in No. 4 burnings
In cup, it is 400~500r/min in rotating speed, after being stirred 40~60min of dipping, filtering, obtains filter cake, be then placed in filter cake
In baking oven, 1~2h is dried, obtains and handles bamboo-carbon fibre three times；Bamboo-carbon fibre and water in mass ratio 1 will be handled three times：50~1：100
It is placed in No. 5 beakers, under the conditions of rotating speed is 300~400r/min, is stirred 40~60min of immersion, filters, obtain moist three
Secondary processing bamboo-carbon fibre, it is then 8~10% by moist bamboo-carbon fibre drying to the moisture content that handles three times, obtains four processing bamboo charcoals
Fiber；By four processing bamboo-carbon fibres and tetraethyl orthosilicate in mass ratio 1：20~1：30 are placed in No. 6 beakers, are in rotating speed
400~500r/min, after being stirred 40~60min of dipping, filtering, obtain five processing bamboo-carbon fibres；Bamboo charcoal is handled by five times
Fiber and nitration mixture in mass ratio 1：20~1：30 are placed in in spherical condensation tube four-hole boiling flask, in temperature be 130~140 DEG C,
Under the conditions of rotating speed is 300~400r/min, heating stirring 1~2h of backflow, mixed liquor is obtained, then mixed liquor is filtered, obtain reactant
Material, then reaction mass is washed with deionized, the deionized water to after washing to neutrality, obtains six processing bamboo-carbon fibres；
By six processing bamboo-carbon fibres and butyl titanate in mass ratio 1：20~1：30 are placed in No. 7 beakers, in rotating speed be 400~
500r/min, after being stirred 40~60min of dipping, filtering, modification bamboo charcoal fiber；Count in parts by weight, by 40~50 parts of water
Mud, 20~30 parts of flyash, 8~10 parts of hydrogen peroxide, 10~20 parts of modification bamboo charcoal fibers, 5~6 parts of silane couplers, 8~10 parts
Graphite oxide powder, 60~80 parts of water are placed in batch mixer, under the conditions of rotating speed is 100~200r/min, stir 30~40min,
Mixed slurry is obtained, then releasing agent is sprayed into mould, then injects mixed slurry in mould, stands 2~3 days, the demoulding, is produced
Cement fly ash foaming insulation material.The cement is portland cement, Portland cement or portland-pozzolan cement
In any one.The silane coupler is silane resin acceptor kh-550, silane coupler KH-560 or silane coupler KH-
Any one in 570.The releasing agent is any one in discarded machine oil or methyl-silicone oil.
Example 1
By the liquor potassic permanganate in mass ratio 1 that graphite powder and mass fraction are 30%：100 are placed in three-necked flask, and by three mouthfuls
Flask is placed in digital display and tested the speed in constant temperature blender with magnetic force, then it is 30% sulphur that mass fraction, which is added dropwise, into three-necked flask with rubber head dropper
Acid for adjusting pH is 85 DEG C in temperature, under the conditions of rotating speed is 400r/min, after heating stirring reaction 2h, filtering, produces oxygen to 4.4
Fossil ink powder；The nitric acid in mass ratio 1 for being 60% with mass fraction by the sulfuric acid that mass fraction is 80%：2 add in No. 1 beaker,
Under the conditions of rotating speed is 600r/min, 60min is stirred, obtains nitration mixture；Bamboo fibre is placed in baking oven, drying to moisture content is
10%, obtain dry bamboo fibre；Bamboo fibre and tetraethyl orthosilicate in mass ratio 1 will be dried：30 add in No. 2 beakers, are in rotating speed
Under the conditions of 500r/min, after being stirred dipping 60min, filtering, pretreatment bamboo fibre is obtained；Pretreatment bamboo fibre is placed in charing
In stove, and nitrogen is filled with into stove by 60mL/min of speed, under the conditions of temperature is 550 DEG C, under nitrogen protective condition, protected
After temperature charing 2h, room temperature is down to stove, obtains single treatment bamboo-carbon fibre；It is 2g/L by single treatment bamboo-carbon fibre and mass concentration
Casein solution in mass ratio 1：30 are placed in No. 3 beakers, are 400r/min in rotating speed, after being stirred dipping 60min, mistake
Filter, obtains filter residue, then filter residue is placed in baking oven, and it is 10% to dry to moisture content, obtains after-treatment bamboo-carbon fibre；By after-treatment
Bamboo-carbon fibre and butyl titanate in mass ratio 1：30 are placed in No. 4 beakers, are 500r/min in rotating speed, are stirred dipping
After 60min, filtering, filter cake is obtained, then filter cake is placed in baking oven, dried 2h, obtain and handle bamboo-carbon fibre three times；It will handle three times
Bamboo-carbon fibre and water in mass ratio 1：100 are placed in No. 5 beakers, under the conditions of rotating speed is 400r/min, are stirred immersion
60min, filtering, obtain it is moist handle bamboo-carbon fibre three times, be by moist bamboo-carbon fibre drying to the moisture content of processing three times then
10%, obtain four processing bamboo-carbon fibres；By four processing bamboo-carbon fibres and tetraethyl orthosilicate in mass ratio 1：30 are placed in No. 6 beakers
In, it is 500r/min in rotating speed, after being stirred dipping 60min, filtering, obtains five processing bamboo-carbon fibres；Bamboo is handled by five times
Carbon fibe and nitration mixture in mass ratio 1：30 are placed in in spherical condensation tube four-hole boiling flask, are 140 DEG C in temperature, rotating speed is
Under the conditions of 400r/min, heating stirring backflow 2h, mixed liquor is obtained, then mixed liquor is filtered, reaction mass is obtained, then by reactant
Material is washed with deionized, the deionized water to after washing to neutrality, obtains six processing bamboo-carbon fibres；Six processing bamboo charcoals are fine
Dimension and butyl titanate in mass ratio 1：30 are placed in No. 7 beakers, are 500r/min in rotating speed, after being stirred dipping 60min,
Filtering, modification bamboo charcoal fiber；Count in parts by weight, by 50 parts of cement, 30 parts of flyash, 10 parts of hydrogen peroxide, 20 parts of modification bamboo charcoals
Fiber, 6 parts of silane couplers, 10 parts of graphite oxide powder, 80 parts of water are placed in batch mixer, under the conditions of rotating speed is 200r/min,
40min is stirred, obtains mixed slurry, then releasing agent is sprayed into mould, then injects mixed slurry in mould, stands 3 days, is taken off
Mould, produce cement fly ash foaming insulation material.The cement is portland cement.The silane coupler is silane coupler
KH-550.The releasing agent is discarded machine oil.
Example 2
By the liquor potassic permanganate in mass ratio 1 that graphite powder and mass fraction are 30%：100 are placed in three-necked flask, and by three mouthfuls
Flask is placed in digital display and tested the speed in constant temperature blender with magnetic force, then it is 30% sulphur that mass fraction, which is added dropwise, into three-necked flask with rubber head dropper
Acid for adjusting pH is 85 DEG C in temperature, under the conditions of rotating speed is 400r/min, after heating stirring reaction 2h, filtering, produces oxygen to 4.4
Fossil ink powder；The nitric acid in mass ratio 1 for being 60% with mass fraction by the sulfuric acid that mass fraction is 80%：2 add in No. 1 beaker,
Under the conditions of rotating speed is 600r/min, 60min is stirred, obtains nitration mixture；Bamboo fibre is placed in baking oven, drying to moisture content is
10%, obtain dry bamboo fibre；Bamboo fibre and tetraethyl orthosilicate in mass ratio 1 will be dried：30 add in No. 2 beakers, are in rotating speed
Under the conditions of 500r/min, after being stirred dipping 60min, filtering, pretreatment bamboo fibre is obtained；Count in parts by weight, by 50 parts of water
Mud, 30 parts of flyash, 10 parts of hydrogen peroxide, 20 parts of pretreatment bamboo fibres, 6 parts of silane couplers, 10 parts of graphite oxide powder, 80 parts of water
It is placed in batch mixer, under the conditions of rotating speed is 200r/min, stirs 40min, obtains mixed slurry, then the demoulding is sprayed into mould
Agent, then mixed slurry is injected in mould, stand 3 days, the demoulding, produce cement fly ash foaming insulation material.The cement
For portland cement.The silane coupler is silane resin acceptor kh-550.The releasing agent is discarded machine oil.
Example 3
By the liquor potassic permanganate in mass ratio 1 that graphite powder and mass fraction are 30%：100 are placed in three-necked flask, and by three mouthfuls
Flask is placed in digital display and tested the speed in constant temperature blender with magnetic force, then it is 30% sulphur that mass fraction, which is added dropwise, into three-necked flask with rubber head dropper
Acid for adjusting pH is 85 DEG C in temperature, under the conditions of rotating speed is 400r/min, after heating stirring reaction 2h, filtering, produces oxygen to 4.4
Fossil ink powder；The nitric acid in mass ratio 1 for being 60% with mass fraction by the sulfuric acid that mass fraction is 80%：2 add in No. 1 beaker,
Under the conditions of rotating speed is 600r/min, 60min is stirred, obtains nitration mixture；Bamboo fibre is placed in baking oven, drying to moisture content is
10%, obtain dry bamboo fibre；Bamboo fibre and tetraethyl orthosilicate in mass ratio 1 will be dried：30 add in No. 2 beakers, are in rotating speed
Under the conditions of 500r/min, after being stirred dipping 60min, filtering, pretreatment bamboo fibre is obtained；Pretreatment bamboo fibre is placed in charing
In stove, and nitrogen is filled with into stove by 60mL/min of speed, under the conditions of temperature is 550 DEG C, under nitrogen protective condition, protected
After temperature charing 2h, room temperature is down to stove, obtains single treatment bamboo-carbon fibre；It is 2g/L by single treatment bamboo-carbon fibre and mass concentration
Casein solution in mass ratio 1：30 are placed in No. 3 beakers, are 400r/min in rotating speed, after being stirred dipping 60min, mistake
Filter, obtains filter residue, then filter residue is placed in baking oven, and it is 10% to dry to moisture content, obtains after-treatment bamboo-carbon fibre；In parts by weight
Meter, by 50 parts of cement, 30 parts of flyash, 10 parts of hydrogen peroxide, 20 parts of after-treatment bamboo-carbon fibres, 6 parts of silane couplers, 10 parts of oxygen
Fossil ink powder, 80 parts of water are placed in batch mixer, under the conditions of rotating speed is 200r/min, is stirred 40min, are obtained mixed slurry, then to
Releasing agent is sprayed in mould, then injects mixed slurry in mould, stands 3 days, the demoulding, produces cement fly ash foaming insulation
Material.The cement is portland cement.The silane coupler is silane resin acceptor kh-550.The releasing agent is scrap machine
Oil.
Example 4
By the liquor potassic permanganate in mass ratio 1 that graphite powder and mass fraction are 30%：100 are placed in three-necked flask, and by three mouthfuls
Flask is placed in digital display and tested the speed in constant temperature blender with magnetic force, then it is 30% sulphur that mass fraction, which is added dropwise, into three-necked flask with rubber head dropper
Acid for adjusting pH is 85 DEG C in temperature, under the conditions of rotating speed is 400r/min, after heating stirring reaction 2h, filtering, produces oxygen to 4.4
Fossil ink powder；The nitric acid in mass ratio 1 for being 60% with mass fraction by the sulfuric acid that mass fraction is 80%：2 add in No. 1 beaker,
Under the conditions of rotating speed is 600r/min, 60min is stirred, obtains nitration mixture；Bamboo fibre is placed in baking oven, drying to moisture content is
10%, obtain dry bamboo fibre；Bamboo fibre and tetraethyl orthosilicate in mass ratio 1 will be dried：30 add in No. 2 beakers, are in rotating speed
Under the conditions of 500r/min, after being stirred dipping 60min, filtering, pretreatment bamboo fibre is obtained；Pretreatment bamboo fibre is placed in charing
In stove, and nitrogen is filled with into stove by 60mL/min of speed, under the conditions of temperature is 550 DEG C, under nitrogen protective condition, protected
After temperature charing 2h, room temperature is down to stove, obtains single treatment bamboo-carbon fibre；It is 2g/L by single treatment bamboo-carbon fibre and mass concentration
Casein solution in mass ratio 1：30 are placed in No. 3 beakers, are 400r/min in rotating speed, after being stirred dipping 60min, mistake
Filter, obtains filter residue, then filter residue is placed in baking oven, and it is 10% to dry to moisture content, obtains after-treatment bamboo-carbon fibre；By after-treatment
Bamboo-carbon fibre and butyl titanate in mass ratio 1：30 are placed in No. 4 beakers, are 500r/min in rotating speed, are stirred dipping
After 60min, filtering, filter cake is obtained, then filter cake is placed in baking oven, dried 2h, obtain and handle bamboo-carbon fibre three times；In parts by weight
Meter, by 50 parts of cement, 30 parts of flyash, 10 parts of hydrogen peroxide, 20 parts handle bamboo-carbon fibre, 6 parts of silane couplers, 10 parts of oxygen three times
Fossil ink powder, 80 parts of water are placed in batch mixer, under the conditions of rotating speed is 200r/min, is stirred 40min, are obtained mixed slurry, then to
Releasing agent is sprayed in mould, then injects mixed slurry in mould, stands 3 days, the demoulding, produces cement fly ash foaming insulation
Material.The cement is portland cement.The silane coupler is silane resin acceptor kh-550.The releasing agent is scrap machine
Oil.
Example 5
By the liquor potassic permanganate in mass ratio 1 that graphite powder and mass fraction are 30%：100 are placed in three-necked flask, and by three mouthfuls
Flask is placed in digital display and tested the speed in constant temperature blender with magnetic force, then it is 30% sulphur that mass fraction, which is added dropwise, into three-necked flask with rubber head dropper
Acid for adjusting pH is 85 DEG C in temperature, under the conditions of rotating speed is 400r/min, after heating stirring reaction 2h, filtering, produces oxygen to 4.4
Fossil ink powder；The nitric acid in mass ratio 1 for being 60% with mass fraction by the sulfuric acid that mass fraction is 80%：2 add in No. 1 beaker,
Under the conditions of rotating speed is 600r/min, 60min is stirred, obtains nitration mixture；Bamboo fibre is placed in baking oven, drying to moisture content is
10%, obtain dry bamboo fibre；Bamboo fibre and tetraethyl orthosilicate in mass ratio 1 will be dried：30 add in No. 2 beakers, are in rotating speed
Under the conditions of 500r/min, after being stirred dipping 60min, filtering, pretreatment bamboo fibre is obtained；Pretreatment bamboo fibre is placed in charing
In stove, and nitrogen is filled with into stove by 60mL/min of speed, under the conditions of temperature is 550 DEG C, under nitrogen protective condition, protected
After temperature charing 2h, room temperature is down to stove, obtains single treatment bamboo-carbon fibre；It is 2g/L by single treatment bamboo-carbon fibre and mass concentration
Casein solution in mass ratio 1：30 are placed in No. 3 beakers, are 400r/min in rotating speed, after being stirred dipping 60min, mistake
Filter, obtains filter residue, then filter residue is placed in baking oven, and it is 10% to dry to moisture content, obtains after-treatment bamboo-carbon fibre；By after-treatment
Bamboo-carbon fibre and butyl titanate in mass ratio 1：30 are placed in No. 4 beakers, are 500r/min in rotating speed, are stirred dipping
After 60min, filtering, filter cake is obtained, then filter cake is placed in baking oven, dried 2h, obtain and handle bamboo-carbon fibre three times；It will handle three times
Bamboo-carbon fibre and water in mass ratio 1：100 are placed in No. 5 beakers, under the conditions of rotating speed is 400r/min, are stirred immersion
60min, filtering, obtain it is moist handle bamboo-carbon fibre three times, be by moist bamboo-carbon fibre drying to the moisture content of processing three times then
10%, obtain four processing bamboo-carbon fibres；Count in parts by weight, by 50 parts of cement, 30 parts of flyash, 10 parts of hydrogen peroxide, 20 parts four times
Handle bamboo-carbon fibre, 6 parts of silane couplers, 10 parts of graphite oxide powder, 80 parts of water are placed in batch mixer, in rotating speed be 200r/min
Under the conditions of, 40min is stirred, obtains mixed slurry, then releasing agent is sprayed into mould, then mixed slurry is injected in mould, it is quiet
Put 3 days, be stripped, produce cement fly ash foaming insulation material.The cement is portland cement.The silane coupler is silicon
Alkane coupling agent KH-550.The releasing agent is discarded machine oil.
Example 6
By the liquor potassic permanganate in mass ratio 1 that graphite powder and mass fraction are 30%：100 are placed in three-necked flask, and by three mouthfuls
Flask is placed in digital display and tested the speed in constant temperature blender with magnetic force, then it is 30% sulphur that mass fraction, which is added dropwise, into three-necked flask with rubber head dropper
Acid for adjusting pH is 85 DEG C in temperature, under the conditions of rotating speed is 400r/min, after heating stirring reaction 2h, filtering, produces oxygen to 4.4
Fossil ink powder；The nitric acid in mass ratio 1 for being 60% with mass fraction by the sulfuric acid that mass fraction is 80%：2 add in No. 1 beaker,
Under the conditions of rotating speed is 600r/min, 60min is stirred, obtains nitration mixture；Bamboo fibre is placed in baking oven, drying to moisture content is
10%, obtain dry bamboo fibre；Bamboo fibre and tetraethyl orthosilicate in mass ratio 1 will be dried：30 add in No. 2 beakers, are in rotating speed
Under the conditions of 500r/min, after being stirred dipping 60min, filtering, pretreatment bamboo fibre is obtained；Pretreatment bamboo fibre is placed in charing
In stove, and nitrogen is filled with into stove by 60mL/min of speed, under the conditions of temperature is 550 DEG C, under nitrogen protective condition, protected
After temperature charing 2h, room temperature is down to stove, obtains single treatment bamboo-carbon fibre；It is 2g/L by single treatment bamboo-carbon fibre and mass concentration
Casein solution in mass ratio 1：30 are placed in No. 3 beakers, are 400r/min in rotating speed, after being stirred dipping 60min, mistake
Filter, obtains filter residue, then filter residue is placed in baking oven, and it is 10% to dry to moisture content, obtains after-treatment bamboo-carbon fibre；By after-treatment
Bamboo-carbon fibre and butyl titanate in mass ratio 1：30 are placed in No. 4 beakers, are 500r/min in rotating speed, are stirred dipping
After 60min, filtering, filter cake is obtained, then filter cake is placed in baking oven, dried 2h, obtain and handle bamboo-carbon fibre three times；It will handle three times
Bamboo-carbon fibre and water in mass ratio 1：100 are placed in No. 5 beakers, under the conditions of rotating speed is 400r/min, are stirred immersion
60min, filtering, obtain it is moist handle bamboo-carbon fibre three times, be by moist bamboo-carbon fibre drying to the moisture content of processing three times then
10%, obtain four processing bamboo-carbon fibres；By four processing bamboo-carbon fibres and tetraethyl orthosilicate in mass ratio 1：30 are placed in No. 6 beakers
In, it is 500r/min in rotating speed, after being stirred dipping 60min, filtering, obtains five processing bamboo-carbon fibres；Count in parts by weight,
By 50 parts of cement, 30 parts of flyash, 10 parts of hydrogen peroxide, 20 parts of five processing bamboo-carbon fibres, 6 parts of silane couplers, 10 parts of oxidations
Graphite powder, 80 parts of water are placed in batch mixer, under the conditions of rotating speed is 200r/min, is stirred 40min, are obtained mixed slurry, then to mould
Releasing agent is sprayed in tool, then injects mixed slurry in mould, stands 3 days, the demoulding, produces cement fly ash foaming thermal insulating material
Material.The cement is portland cement.The silane coupler is silane resin acceptor kh-550.The releasing agent is scrap machine
Oil.
Example 7
By the liquor potassic permanganate in mass ratio 1 that graphite powder and mass fraction are 30%：100 are placed in three-necked flask, and by three mouthfuls
Flask is placed in digital display and tested the speed in constant temperature blender with magnetic force, then it is 30% sulphur that mass fraction, which is added dropwise, into three-necked flask with rubber head dropper
Acid for adjusting pH is 85 DEG C in temperature, under the conditions of rotating speed is 400r/min, after heating stirring reaction 2h, filtering, produces oxygen to 4.4
Fossil ink powder；The nitric acid in mass ratio 1 for being 60% with mass fraction by the sulfuric acid that mass fraction is 80%：2 add in No. 1 beaker,
Under the conditions of rotating speed is 600r/min, 60min is stirred, obtains nitration mixture；Bamboo fibre is placed in baking oven, drying to moisture content is
10%, obtain dry bamboo fibre；Bamboo fibre and tetraethyl orthosilicate in mass ratio 1 will be dried：30 add in No. 2 beakers, are in rotating speed
Under the conditions of 500r/min, after being stirred dipping 60min, filtering, pretreatment bamboo fibre is obtained；Pretreatment bamboo fibre is placed in charing
In stove, and nitrogen is filled with into stove by 60mL/min of speed, under the conditions of temperature is 550 DEG C, under nitrogen protective condition, protected
After temperature charing 2h, room temperature is down to stove, obtains single treatment bamboo-carbon fibre；It is 2g/L by single treatment bamboo-carbon fibre and mass concentration
Casein solution in mass ratio 1：30 are placed in No. 3 beakers, are 400r/min in rotating speed, after being stirred dipping 60min, mistake
Filter, obtains filter residue, then filter residue is placed in baking oven, and it is 10% to dry to moisture content, obtains after-treatment bamboo-carbon fibre；By after-treatment
Bamboo-carbon fibre and butyl titanate in mass ratio 1：30 are placed in No. 4 beakers, are 500r/min in rotating speed, are stirred dipping
After 60min, filtering, filter cake is obtained, then filter cake is placed in baking oven, dried 2h, obtain and handle bamboo-carbon fibre three times；It will handle three times
Bamboo-carbon fibre and water in mass ratio 1：100 are placed in No. 5 beakers, under the conditions of rotating speed is 400r/min, are stirred immersion
60min, filtering, obtain it is moist handle bamboo-carbon fibre three times, be by moist bamboo-carbon fibre drying to the moisture content of processing three times then
10%, obtain four processing bamboo-carbon fibres；By four processing bamboo-carbon fibres and tetraethyl orthosilicate in mass ratio 1：30 are placed in No. 6 beakers
In, it is 500r/min in rotating speed, after being stirred dipping 60min, filtering, obtains five processing bamboo-carbon fibres；Bamboo is handled by five times
Carbon fibe and nitration mixture in mass ratio 1：30 are placed in in spherical condensation tube four-hole boiling flask, are 140 DEG C in temperature, rotating speed is
Under the conditions of 400r/min, heating stirring backflow 2h, mixed liquor is obtained, then mixed liquor is filtered, reaction mass is obtained, then by reactant
Material is washed with deionized, the deionized water to after washing to neutrality, obtains six processing bamboo-carbon fibres；Count in parts by weight, will
50 parts of cement, 30 parts of flyash, 10 parts of hydrogen peroxide, 20 parts of six processing bamboo-carbon fibres, 6 parts of silane couplers, 10 parts of oxidation stones
Ink powder, 80 parts of water are placed in batch mixer, under the conditions of rotating speed is 200r/min, is stirred 40min, are obtained mixed slurry, then to mould
Middle sprinkling releasing agent, then mixed slurry is injected in mould, stand 3 days, the demoulding, produce cement fly ash foaming thermal insulating material
Material.The cement is portland cement.The silane coupler is silane resin acceptor kh-550.The releasing agent is scrap machine
Oil.
Example 8
The nitric acid in mass ratio 1 for being 60% with mass fraction by the sulfuric acid that mass fraction is 80%：2 add in No. 1 beaker, in rotating speed
Under the conditions of 600r/min, 60min is stirred, obtains nitration mixture；Bamboo fibre is placed in baking oven, it is 10% to dry to moisture content, is obtained
Dry bamboo fibre；Bamboo fibre and tetraethyl orthosilicate in mass ratio 1 will be dried：30 add No. 2 beakers in, in rotating speed be 500r/min
Under the conditions of, after being stirred dipping 60min, filtering, obtain pretreatment bamboo fibre；Pretreatment bamboo fibre is placed in retort, and
Nitrogen is filled with into stove by 60mL/min of speed, under the conditions of temperature is 550 DEG C, under nitrogen protective condition, insulation charing
After 2h, room temperature is down to stove, obtains single treatment bamboo-carbon fibre；Casein by single treatment bamboo-carbon fibre with mass concentration for 2g/L
Solution in mass ratio 1：30 are placed in No. 3 beakers, are 400r/min in rotating speed, after being stirred dipping 60min, filtering, must filter
Slag, then filter residue is placed in baking oven, it is 10% to dry to moisture content, obtains after-treatment bamboo-carbon fibre；By after-treatment bamboo-carbon fibre
With butyl titanate in mass ratio 1：30 are placed in No. 4 beakers, are 500r/min in rotating speed, after being stirred dipping 60min, mistake
Filter, obtains filter cake, then filter cake is placed in baking oven, dries 2h, obtains and handle bamboo-carbon fibre three times；To handle three times bamboo-carbon fibre with
Water in mass ratio 1：100 are placed in No. 5 beakers, under the conditions of rotating speed is 400r/min, is stirred immersion 60min, filtering, obtains
Humidity handles bamboo-carbon fibre three times, is then 10% by moist bamboo-carbon fibre drying to the moisture content that handles three times, obtains four processing bamboos
Carbon fibe；By four processing bamboo-carbon fibres and tetraethyl orthosilicate in mass ratio 1：30 are placed in No. 6 beakers, in rotating speed be 500r/
Min, after being stirred dipping 60min, filtering, obtain five processing bamboo-carbon fibres；Five processing bamboo-carbon fibres are pressed into matter with nitration mixture
Measure ratio 1：30 are placed in in spherical condensation tube four-hole boiling flask, are 140 DEG C in temperature, under the conditions of rotating speed is 400r/min, heat
2h is stirred at reflux, obtains mixed liquor, then mixed liquor is filtered, reaction mass is obtained, then reaction mass is washed with deionized, extremely
Deionized water after washing obtains six processing bamboo-carbon fibres to neutrality；Six processing bamboo-carbon fibres are pressed into matter with butyl titanate
Measure ratio 1：30 are placed in No. 7 beakers, are 500r/min in rotating speed, after being stirred dipping 60min, filtering, and modification bamboo charcoal fiber；
Count in parts by weight, by 50 parts of cement, 30 parts of flyash, 10 parts of hydrogen peroxide, 20 parts of modification bamboo charcoal fibers, 6 parts of silane couplers,
80 parts of water are placed in batch mixer, under the conditions of rotating speed is 200r/min, is stirred 40min, are obtained mixed slurry, then spray into mould
Releasing agent, then mixed slurry is injected in mould, stand 3 days, the demoulding, produce cement fly ash foaming insulation material.It is described
Cement is portland cement.The silane coupler is silane resin acceptor kh-550.The releasing agent is discarded machine oil.
Comparative example：The cement fly ash foaming insulation material of Zhenjiang building materials Co., Ltd production.
The gained cement fly ash foaming insulation material of example 1 to 8 and comparative example product are subjected to performance detection, specific detection
Method is as follows：
Sample mark supported age as 7 days, wherein, specimen size when determining intensity is 40mm × 40mm × 160mm, and thermal conductivity factor tries
Part size is 300mm × 300mm × 30mm, and method of testing is carried out by GB/T10294.
Specific testing result is as shown in table 1：
Table 1
| Detection content | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Example 7 | Example 8 | Comparative example |
| Thermal conductivity factor W/（m·K） | 0.051 | 0.104 | 0.098 | 0.092 | 0.089 | 0.083 | 0.072 | 0.063 | 0.121 |
| Compression strength MPa | 2.51 | 0.29 | 0.58 | 0.93 | 1.26 | 1.68 | 1.97 | 2.31 | 0.25 |
From the testing result of table 1, cement fly ash foaming insulation material provided by the invention have excellent heat-insulating property and
Mechanical property.
Claims (5)
- A kind of 1. cement fly ash foaming insulation material, it is characterised in that：It is made up of the raw material of following parts by weight：40~50 parts of cement20~30 parts of flyash8~10 parts of hydrogen peroxide10~20 parts of modification bamboo charcoal fiber5~6 parts of silane coupler8~10 parts of graphite oxide powder60~80 parts of waterThe preparation process of the modification bamboo charcoal fiber is：（1）It is 8~10% by bamboo fibre drying to moisture content, obtains dry bamboo fibre；（2）Bamboo fibre and tetraethyl orthosilicate in mass ratio 1 will be dried：20~1：30 are mixed with dipping, filtering, must pre-process bamboo fibre Dimension；（3）The nitrogen charging insulation of pretreatment bamboo fibre is carbonized, obtains single treatment bamboo-carbon fibre；（4）By single treatment bamboo-carbon fibre and casein solution in mass ratio 1：20~1：30 are mixed with dipping, and filtering, dry to aqueous Rate is 8~10%, obtains after-treatment bamboo-carbon fibre；（5）By after-treatment bamboo-carbon fibre and butyl titanate in mass ratio 1：20~1：30 are mixed with dipping, and filter, and dry, obtain Bamboo-carbon fibre is handled three times；（6）Bamboo-carbon fibre and water in mass ratio 1 will be handled three times：50~1：100 mixing, soak, filtering, and drying to moisture content is 8~10%, obtain four processing bamboo-carbon fibres；（7）By four processing bamboo-carbon fibres and tetraethyl orthosilicate in mass ratio 1：20~1：30 are mixed with dipping, and filtering, obtain at five times Manage bamboo-carbon fibre；（8）By five processing bamboo-carbon fibres and nitration mixture in mass ratio 1：20~1：30 mixing, heating reflux reaction, are filtered, washing, Obtain six processing bamboo-carbon fibres；（9）By six processing bamboo-carbon fibres and butyl titanate in mass ratio 1：20~1：30 are mixed with dipping, filtering, modification bamboo charcoal Fiber.
- A kind of 2. cement fly ash foaming insulation material according to claim 1, it is characterised in that：The cement is silicate Any one in cement, Portland cement or portland-pozzolan cement.
- A kind of 3. cement fly ash foaming insulation material according to claim 1, it is characterised in that：The silane coupler is Any one for silane resin acceptor kh-550, in silane coupler KH-560 or Silane coupling reagent KH-570.
- A kind of 4. cement fly ash foaming insulation material according to claim 1, it is characterised in that：The graphite oxide powder Preparation process is：By graphite powder and liquor potassic permanganate in mass ratio 1：50~1：100 mixing, sulphur acid for adjusting pH is added dropwise to 4.3 ~4.4, heating stirring reaction, filtering, produce graphite oxide powder.
- A kind of 5. cement fly ash foaming insulation material according to claim 1, it is characterised in that：Step（8）The nitration mixture It is by sulfuric acid and nitric acid in mass ratio 1：1~1：2 mix；The mass fraction of the sulfuric acid is 70~80%；The nitric acid Mass fraction is 50~60%.
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| CN108439871A (en) * | 2018-05-15 | 2018-08-24 | 苗霞明 | A kind of cement base haydite sound-absorbing material |
| CN108558257A (en) * | 2018-05-15 | 2018-09-21 | 苗霞明 | A kind of inorganic adhesive of white cement base |
| CN110240455A (en) * | 2019-07-08 | 2019-09-17 | 安徽恒兴新型建材有限公司 | A kind of new building insulation material that thermal coefficient is low |
| CN111908940A (en) * | 2020-07-07 | 2020-11-10 | 中筑科技股份有限公司 | Novel expanded graphite cement foaming thermal insulation material for industrial pipeline |
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| CN104973872A (en) * | 2015-06-10 | 2015-10-14 | 马鞍山金晟工业设计有限公司 | Alumina-magnesia spinel refractory material and preparation method thereof |
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| CN107266121A (en) * | 2017-07-19 | 2017-10-20 | 合肥广民建材有限公司 | A kind of cement insulation board and preparation method thereof |
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| CN104557121A (en) * | 2015-01-12 | 2015-04-29 | 富思特新材料科技发展股份有限公司 | Foam cement heat preservation plate and preparation method thereof |
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| CN108439871A (en) * | 2018-05-15 | 2018-08-24 | 苗霞明 | A kind of cement base haydite sound-absorbing material |
| CN108558257A (en) * | 2018-05-15 | 2018-09-21 | 苗霞明 | A kind of inorganic adhesive of white cement base |
| CN110240455A (en) * | 2019-07-08 | 2019-09-17 | 安徽恒兴新型建材有限公司 | A kind of new building insulation material that thermal coefficient is low |
| CN111908940A (en) * | 2020-07-07 | 2020-11-10 | 中筑科技股份有限公司 | Novel expanded graphite cement foaming thermal insulation material for industrial pipeline |
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