CN108774028A - A kind of preparation method of the impermeable aerated bricks of high intensity - Google Patents
A kind of preparation method of the impermeable aerated bricks of high intensity Download PDFInfo
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5076—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with masses bonded by inorganic cements
- C04B41/5089—Silica sols, alkyl, ammonium or alkali metal silicate cements
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- E—FIXED CONSTRUCTIONS
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- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00293—Materials impermeable to liquids
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- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/21—Efflorescence resistance
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- C—CHEMISTRY; METALLURGY
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
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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
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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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
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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Abstract
The present invention relates to construction material preparing technical fields, and in particular to a kind of preparation method of the impermeable aerated bricks of high intensity.Metal ion is introduced into graphene oxide metal composite is made first by the present invention,Nano silicon dioxide hybridization modified polyorganosiloxane compound is prepared again,The raw material of metal composite and aerated bricks is finally mixed with aerated bricks,It is used in combination SiO 2 hybrid silicone composites to impregnate aerated bricks idiosome,It finally conserves and the impermeable aerated bricks of high intensity is made,Graphene oxide metal composite will be prepared to be introduced into aerated bricks,Make aerated bricks that there is the intensity and toughness of superelevation,The addition of silver can allow aerated bricks to have fungi-proofing ability simultaneously,Modified polyorganosiloxane is reacted into synthesis nano hydridization polysiloxanes with modified manometer silicon dioxide colloidal sol,After this substance immersion aerated bricks a kind of super-hydrophobic layer film will be formed on aerated bricks surface,Increase water contact angle,To increase the anti-permeability of aerated bricks,It has broad application prospects.
Description
Technical field
The present invention relates to construction material preparing technical fields, and in particular to a kind of preparation side of the impermeable aerated bricks of high intensity
Method.
Background technology
Aerated bricks are also referred to as air-entrained concrete building block, are built by the air entrained concrete that autoclave at high temperature apparatus and process produces
Block.With siliceous material（Sand, flyash and containing silicon tailings etc.）And calcareous material（Lime, cement）For primary raw material, admixture is got angry
Agent（Aluminium powder）, the light porous silicate product made of the technical process such as stirring, cast, precuring, cutting, steam pressure, maintenance.
Building block, plank and the heat insulating products of different size can be made in it, are widely used in industry and the load-bearing of civil buildings or enclose
Shield interstitital texture is become a kind of building that many countries widely popularize and develop by the most attention of countries in the world construction industry
Material.
Aerated bricks are a kind of lightweight, porous New Building Materials, have light capacity, high insulating efficiency is high, and sound-absorbing is good, antidetonation
Power is strong, adaptable, and processing performance is good, at low cost, it is environmentally protective the advantages that, have become existing novel wall material now
One important component.Aerated bricks have become the leading products of building material industry at present, and country is gradually forbidden to use
Clay solid brick is instead exactly gradually air-entrained concrete building block.
With the development of building trade, building is higher and higher to add requirement of the people to quality of the life, to aerated bricks
The requirements such as intensity, corrosion resistance, shrinkage value, frost resistance all increase.But there is also one for the aerated bricks of prior art preparation
A little defects：
（1）There are rough porous to play layer of sand on surface, and easy water suction leads to wall leakage, and surface is easily painted in actual use
Layer hollowing or whole the phenomenon that falling off, and by cement and clay consumption resource to be made big for existing hollow brick；
（2）Anti-permeability performance and corrosion resistance be not generally high, is easy in the environment of for a long time by the impact of water or strong corrosive
Cracking, or even there is the phenomenon that fracture and avalanche, there is great security risk；
（3）In use, distribution of pores unevenness is susceptible to after inevitably causing tumble injury, brick body to throw away brick body
Even, the non-uniform phenomenon of pore size causes aerated bricks local pressure uneven and easily divides；
（4）The aerated bricks intensity of conventional method preparation is low, anti-freezing property is poor, brick body moisture-sensitive is mouldy, and brick body itself is resistance to old
It is poor to change performance, substantially reduces brick body service life.
Therefore, developing a kind of aerated bricks that can solve above-mentioned performance issue is highly desirable.
Invention content
The technical problems to be solved by the invention：, anti-permeability poor for current aerated bricks mechanical strength is bad to be lacked
It falls into, provides a kind of preparation method of the impermeable aerated bricks of high intensity.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of preparation method of the impermeable aerated bricks of high intensity, it is characterised in that specifically preparation process is：
（1）It counts in parts by weight, weighs 40~50 parts of concentrated sulfuric acids, 1~3 part of sodium nitrate powder and 2~4 parts of graphite powders and be put into three mouthfuls
In flask, three-necked flask is placed in water-bath and is stirred with blender, 5~8 parts of potassium permanganate powders are added after being stirred and hold
10~15min of continuous stirring, then increases bath temperature, 30~40min of isothermal reaction obtains dark brown liquid；
（2）The deionized water of above-mentioned dark brown liquid quality 200~240% is added into three-necked flask, increases bath temperature to 88
~92 DEG C, 15~18min of isothermal reaction obtains mixed liquor, and the hydrogen peroxide of mixed liquor quality 20~30% is added into mixed liquor,
Keep bath temperature 20~25min of isothermal reaction, obtain suspension, filter residue be obtained by filtration while hot, with dilute hydrochloric acid wash filter residue 3~
5 times, then be placed in oven and dried to obtain oxidation product after being washed with distilled water 3~5 times；
（3）Count in parts by weight, by etc. quality silver nitrate solution and cetyl trimethylammonium bromide be put into beaker, with stirring
It mixes device and stirs to get reaction solution, by reaction solution and sodium borohydride in mass ratio 10:It is put into ultrasonic vibration instrument after 1 mixing, with 30
The frequency ultrasound of~32kHz shakes 2~3h and obtains dispersion liquid, by above-mentioned oxidation product and dispersion liquid in mass ratio 1:8 mixing are simultaneously
Metal composite is made after shaking 1~2h with ultrasonic vibration instrument with the frequency ultrasound of 30~32kHz, it is spare；
（4）Count in parts by weight, by 20~22 parts of poly- methylhydrogen silicones, 2~4 parts of allyl glycidyl ethers, 5~8 parts
Methacrylic acid octadecyl is put into three-necked flask, is passed through nitrogen, is stirred and is warming up to 85~95 DEG C, adds 1~2 part of chlorine
Platinic acid, 3~4h of isothermal reaction obtain mixed emulsion；
（5）It counts in parts by weight, 10~12 parts of ethyl orthosilicates, 5~6 parts of ammonium hydroxide and 7~8 parts of absolute ethyl alcohols is put into beaker
Mixing, is put into water-bath, and colloidal sol is obtained after standing 1~2h, and the 3- aminopropyls three of colloidal sol quality 10~15% are added into colloidal sol
Ethoxysilane obtains modification sol after being stirred with blender；
（6）By modification sol and mixed emulsion in mass ratio 1:It is fitted into the three-necked flask with reflux condensing tube, stirs after 3 mixing
Reaction is mixed, thick liquid is obtained, it is spare；
（7）It counts in parts by weight, by 95~100 parts of portland cements, 10~15 parts of spare metal composites, 5~10 parts of powder
In coal ash, 2~5 parts of gypsum, 4~8 parts of aluminium powder cream, 5~9 parts of magnesia and 180~190 parts of water input reaction kettles, stir to get
Mixed serum；
（8）Mixed serum is poured into a mould and stood, idiosome is obtained, idiosome is cut, obtains aerating brick, with spare
Thick liquid impregnates aerating brick 3~5 days, then aerating brick is put into steam curing stove to conserve and is added up to high intensity is impermeable
Gas brick.
Step（1）Described in concentrated sulfuric acid mass fraction be 80~90%, bath temperature be 0~5 DEG C, blender stirring speed
Rate is 300~350r/min, and mixing time is 10~15min, and warming-in-water temperature is to 35~40 DEG C.
Step（2）Described in hydrogen peroxide mass fraction be 20~25%, dilute hydrochloric acid mass fraction be 3~5%, oven temperature
It it is 100~105 DEG C, drying time is 10~12h.
Step（3）Described in.The mass fraction of silver nitrate solution is 15~20%, and agitator speed is 200~240r/
Min, mixing time are 8~10min.
Step（4）Described in be passed through nitrogen rate be 50mL/min, speed of agitator be 250~300r/min.
Step（5）Described in ammonium hydroxide mass fraction be 30~40%, bath temperature be 60~70 DEG C, agitator speed
For 500~600r/min, mixing time is 30~40min.
Step（6）Described in speed of agitator be 300~400r/min, reaction temperature be 80~85 DEG C, the reaction time 3
~4h.
Step（7）Described in speed of agitator be 450~500r/min, mixing time be 20~30min.
Step（8）Described in cast when temperature be 60~70 DEG C, time of repose is 3~4h, temperature in steam curing stove
Be 140~150 DEG C, pressure be 1.5~2.0MPa, curing time be 22~for 24 hours.
The method have the benefit that：
（1）The present invention first mixes graphite powder with the concentrated sulfuric acid, potassium permanganate, is blended into hydrogenperoxide steam generator oxidation and oxidation is made
Metal ion is introduced into graphene oxide and metal composite is made by graphene, then prepares nano silicon dioxide hybridization and be modified and gather
Silicone composite finally is mixed with the raw material of metal composite and aerated bricks to obtain aerated bricks, and titanium dioxide sila is used in combination
Change silicone composites to impregnate aerated bricks idiosome, finally conserve and the impermeable aerated bricks of high intensity are made, the present invention will
It prepares graphene oxide metal composite to be introduced into aerated bricks, the chemical bond and electronic structure in graphene between carbon atom are close
Correlation, all carbon atoms are all strapped in approximately the same plane, therefore intensity and toughness with superelevation, while graphite in graphene
Hydroxyl, carboxyl and other epoxy-functionals carried after alkene oxidation can be modified poly- silica with the SiO 2 hybrid of rear addition
Alkane compound forms new covalent bond and other Chemical bondings, keeps aerated bricks internal structure finer and close, it is strong to improve mechanics
Degree, the present invention is also by graphene oxide composition metal nano particle, and metal nanoparticle hardness is high, and the flexibility having,
To effectively improve the intensity of aerated bricks, while the addition of silver can allow aerated bricks to have fungi-proofing ability, prevent to a certain degree micro-
The corrosion of biology, silver nano-grain can also be produced with carboxyl, carbonyl and the other organo-functional groups in aerated bricks preparation system
Raw complex reaction, can also reinforce the stability of aerated bricks internal structure to a certain extent makes the intensity of aerated bricks be carried
It is high；
（2）The present invention introduces teos hydrolysis, condensation synthesis nano silicon dioxide gel silane coupled into colloidal sol
Modified manometer silicon dioxide colloidal sol is made in agent, then prepares modified polyorganosiloxane and react synthesis with modified manometer silicon dioxide colloidal sol
Nanoscale hydridization polysiloxanes will form a kind of super-hydrophobic layer film on aerated bricks surface after this substance immersion aerated bricks, surpass
There are close nano-scale particles for hydrophobic layer surface, and water droplet can also be suspended on this surface on micron mastoid process structure, therefore be subtracted
The small real contact area with film surface increases water contact angle, reduces water roll angle, enables water droplet in aerated bricks table
Face can not stick, move freely, and to increase the anti-permeability of aerated bricks, have broad application prospects.
Specific implementation mode
Count in parts by weight, weigh 40~50 parts of mass fractions be 80~90% the concentrated sulfuric acid, 1~3 part of sodium nitrate powder and
2~4 parts of graphite powders are put into three-necked flask, by three-necked flask be placed in bath temperature be in 0~5 DEG C of water-bath and with blender with
The rotating speed of 300~350r/min stirs 10~15min, be added after being stirred 5~8 parts of potassium permanganate powders persistently stir 10~
Then 15min increases bath temperature to 35~40 DEG C, 30~40min of isothermal reaction obtains dark brown liquid；To three-necked flask
The middle deionized water that above-mentioned dark brown liquid quality 200~240% is added, increases bath temperature to 88~92 DEG C, isothermal reaction 15
~18min, obtains mixed liquor, and the hydrogen peroxide that 20~30% mass fraction of mixed liquor quality is 20~25% is added into mixed liquor,
Bath temperature 20~25min of isothermal reaction is kept, suspension is obtained, filter residue is obtained by filtration while hot, is 3~5% with mass fraction
Dilute hydrochloric acid washs filter residue 3~5 times, then dry 10 are put into baking oven at 100~105 DEG C after being washed with distilled water 3~5 times~
12h obtains oxidation product；Count in parts by weight, by etc. quality mass fraction be 15~20% silver nitrate solution and hexadecane
Base trimethylammonium bromide is put into beaker, and stirring 8~10min with blender with the rotating speed of 200~240r/min obtains reaction solution,
By reaction solution and sodium borohydride in mass ratio 10:It is put into ultrasonic vibration instrument after 1 mixing, is shaken with the frequency ultrasound of 30~32kHz
It swings 2~3h and obtains dispersion liquid, by above-mentioned oxidation product and dispersion liquid in mass ratio 1:8 mixing and with ultrasonic vibration instrument with 30~
Metal composite is made after shaking 1~2h in the frequency ultrasound of 32kHz, spare；It counts in parts by weight, 20~22 parts of poly- methyl is contained
Hydrogen siloxane, 2~4 parts of allyl glycidyl ethers, 5~8 parts of methacrylic acid octadecyls are put into three-necked flask, with
The rate of 50mL/min is passed through nitrogen, is warming up to 85~95 DEG C under conditions of stir speed (S.S.) is 250~300r/min, adds
1~2 part of chloroplatinic acid, 3~4h of isothermal reaction obtain mixed emulsion；It counts in parts by weight, by 10~12 parts of ethyl orthosilicates, 5~6
The ammonium hydroxide and 7~8 parts of absolute ethyl alcohols that part mass fraction is 30~40% are put into beaker and mix, and it is 60~70 to be put into bath temperature
DEG C water-bath in, obtain colloidal sol after standing 1~2h, three ethoxy of 3- aminopropyls of colloidal sol quality 10~15% be added into colloidal sol
Base silane obtains modification sol after stirring 30~40min with blender with the rotating speed of 500~600r/min；By modification sol and
Mixed emulsion in mass ratio 1:Is fitted into the three-necked flask with reflux condensing tube after 3 mixing, speed of agitator for 300~
400r/min, temperature reacts 3~4h under conditions of being 80~85 DEG C, obtains thick liquid, spare；It counts in parts by weight, by 95
~100 parts of portland cements, 10~15 parts of spare metal composites, 5~10 parts of flyash, 2~5 parts of gypsum, 4~8 parts of aluminium
In powder cream, 5~9 parts of magnesia and 180~190 parts of water input reaction kettles, 20 are stirred under the speed conditions of 450~500r/min
~30min obtains mixed serum；Mixed serum is subjected to cast and stands 3~4h under conditions of temperature is 60~70 DEG C, is obtained
To idiosome, idiosome is cut, obtains aerating brick, impregnates aerating brick 3~5 days with spare thick liquid, then will add
Gas brick is put into steam curing stove, temperature be 140~150 DEG C, pressure be 1.5~2.0MPa under conditions of maintenance 22~
For 24 hours up to the impermeable aerated bricks of high intensity.
It counts in parts by weight, weighs the concentrated sulfuric acid, 1 part of sodium nitrate powder and 2 parts of graphite powders that 40 parts of mass fractions are 80% and put
Enter in three-necked flask, three-necked flask is placed in the water-bath that bath temperature is 0 DEG C and is stirred with the rotating speed of 300r/min with blender
10min is mixed, 5 parts of potassium permanganate powders are added after being stirred and persistently stir 10min, then raising bath temperature is permanent to 35 DEG C
Temperature reaction 30min, obtains dark brown liquid；The deionized water of above-mentioned dark brown liquid quality 200% is added into three-necked flask,
Bath temperature is increased to 88 DEG C, isothermal reaction 15min obtains mixed liquor, and mixed liquor quality 20% mass point is added into mixed liquor
Number is 20% hydrogen peroxide, keeps bath temperature isothermal reaction 20min, obtains suspension, filter residue is obtained by filtration while hot, use quality
The dilute hydrochloric acid that score is 3% washs filter residue 3 times, then is put into baking oven at 100 DEG C dry 10h after being washed with distilled water 3 times and obtains
Oxidation product；Count in parts by weight, by etc. quality mass fraction be 15% silver nitrate solution and cetyl trimethyl bromination
Ammonium is put into beaker, obtains reaction solution with the rotating speed stirring 8min of 200r/min with blender, reaction solution and sodium borohydride are pressed
Mass ratio 10:It is put into ultrasonic vibration instrument after 1 mixing, dispersion liquid is obtained with the frequency ultrasound concussion 2h of 30kHz, by above-mentioned oxidation
Product and dispersion liquid in mass ratio 1:8 mixing are simultaneously multiple metal is made after the frequency ultrasound concussion 1h of 30kHz with ultrasonic vibration instrument
Object is closed, it is spare；It counts in parts by weight, by 20 parts of poly- methylhydrogen silicones, 2 parts of allyl glycidyl ethers, 5 parts of metering systems
Sour octadecyl is put into three-necked flask, and nitrogen is passed through with the rate of 50mL/min, in the condition that stir speed (S.S.) is 250r/min
Under be warming up to 85 DEG C, add 1 part of chloroplatinic acid, isothermal reaction 3h obtains mixed emulsion；It counts in parts by weight, by 10 parts of positive silicic acid
The ammonium hydroxide and 7 parts of absolute ethyl alcohols that ethyl ester, 5 parts of mass fractions are 30% are put into beaker and mix, and are put into the water that bath temperature is 60 DEG C
In bath, colloidal sol is obtained after standing 1h, the 3- aminopropyl triethoxysilanes of colloidal sol quality 10% are added into colloidal sol, with stirring
Device after the rotating speed stirring 30min of 500r/min to obtain modification sol；By modification sol and mixed emulsion in mass ratio 1:3 mixing
It is fitted into afterwards in the three-necked flask with reflux condensing tube, is 300r/min in speed of agitator, temperature is reacted under conditions of being 80 DEG C
3h obtains thick liquid, spare；It counts in parts by weight, by 95 parts of portland cements, 10 parts of spare metal composites, 5 parts of powder
In coal ash, 2 parts of gypsum, 4 parts of aluminium powder cream, 5 parts of magnesia and 180 parts of water input reaction kettles, under the speed conditions of 450r/min
Stirring 20min obtains mixed serum；Mixed serum is subjected to cast and stands 3h under conditions of temperature is 60 DEG C, obtains embryo
Body cuts idiosome, obtains aerating brick, impregnates aerating brick 3 days with spare thick liquid, then aerating brick is put
Enter in steam curing stove, is 140 DEG C in temperature, maintenance 22h is up to the impermeable aerating of high intensity under conditions of pressure is 1.5MPa
Brick.
It counts in parts by weight, weighs the concentrated sulfuric acid, 2 parts of sodium nitrate powder and 3 parts of graphite powders that 45 parts of mass fractions are 85% and put
Enter in three-necked flask, three-necked flask is placed in the water-bath that bath temperature is 3 DEG C and is stirred with the rotating speed of 325r/min with blender
13min is mixed, 6 parts of potassium permanganate powders are added after being stirred and persistently stir 13min, then raising bath temperature is permanent to 37 DEG C
Temperature reaction 35min, obtains dark brown liquid；The deionized water of above-mentioned dark brown liquid quality 220% is added into three-necked flask,
Bath temperature is increased to 90 DEG C, isothermal reaction 16min obtains mixed liquor, and mixed liquor quality 25% mass point is added into mixed liquor
Number is 23% hydrogen peroxide, keeps bath temperature isothermal reaction 23min, obtains suspension, filter residue is obtained by filtration while hot, use quality
The dilute hydrochloric acid that score is 4% washs filter residue 4 times, then is put into baking oven at 103 DEG C dry 11h after being washed with distilled water 4 times and obtains
Oxidation product；Count in parts by weight, by etc. quality mass fraction be 17% silver nitrate solution and cetyl trimethyl bromination
Ammonium is put into beaker, obtains reaction solution with the rotating speed stirring 9min of 220r/min with blender, reaction solution and sodium borohydride are pressed
Mass ratio 10:It is put into ultrasonic vibration instrument after 1 mixing, dispersion liquid is obtained with the frequency ultrasound concussion 2h of 31kHz, by above-mentioned oxidation
Product and dispersion liquid in mass ratio 1:8 mixing are simultaneously multiple metal is made after the frequency ultrasound concussion 1h of 33kHz with ultrasonic vibration instrument
Object is closed, it is spare；It counts in parts by weight, by 21 parts of poly- methylhydrogen silicones, 3 parts of allyl glycidyl ethers, 6 parts of metering systems
Sour octadecyl is put into three-necked flask, and nitrogen is passed through with the rate of 50mL/min, in the condition that stir speed (S.S.) is 275r/min
Under be warming up to 90 DEG C, add 1 part of chloroplatinic acid, isothermal reaction 3h obtains mixed emulsion；It counts in parts by weight, by 11 parts of positive silicic acid
The ammonium hydroxide and 7 parts of absolute ethyl alcohols that ethyl ester, 5 parts of mass fractions are 35% are put into beaker and mix, and are put into the water that bath temperature is 65 DEG C
In bath, colloidal sol is obtained after standing 1h, the 3- aminopropyl triethoxysilanes of colloidal sol quality 13% are added into colloidal sol, with stirring
Device after the rotating speed stirring 35min of 550r/min to obtain modification sol；By modification sol and mixed emulsion in mass ratio 1:3 mixing
It is fitted into afterwards in the three-necked flask with reflux condensing tube, is 350r/min in speed of agitator, temperature is reacted under conditions of being 83 DEG C
3.5h obtains thick liquid, spare；Count in parts by weight, by 97 parts of portland cements, 13 parts of spare metal composites, 7 parts
In flyash, 3 parts of gypsum, 5 parts of aluminium powder cream, 7 parts of magnesia and 185 parts of water input reaction kettles, in the speed conditions of 475r/min
Lower stirring 25min obtains mixed serum；Mixed serum is subjected to cast and stands 3h under conditions of temperature is 65 DEG C, obtains embryo
Body cuts idiosome, obtains aerating brick, impregnates aerating brick 4 days with spare thick liquid, then aerating brick is put
Enter in steam curing stove, is 145 DEG C in temperature, maintenance 23h is up to the impermeable aerating of high intensity under conditions of pressure is 1.7MPa
Brick.
It counts in parts by weight, weighs the concentrated sulfuric acid, 3 parts of sodium nitrate powder and 4 parts of graphite powders that 50 parts of mass fractions are 90% and put
Enter in three-necked flask, three-necked flask is placed in the water-bath that bath temperature is 5 DEG C and is stirred with the rotating speed of 350r/min with blender
15min is mixed, 8 parts of potassium permanganate powders are added after being stirred and persistently stir 15min, then raising bath temperature is permanent to 40 DEG C
Temperature reaction 40min, obtains dark brown liquid；The deionized water of above-mentioned dark brown liquid quality 240% is added into three-necked flask,
Bath temperature is increased to 92 DEG C, isothermal reaction 18min obtains mixed liquor, and mixed liquor quality 30% mass point is added into mixed liquor
Number is 25% hydrogen peroxide, keeps bath temperature isothermal reaction 25min, obtains suspension, filter residue is obtained by filtration while hot, use quality
The dilute hydrochloric acid that score is 5% washs filter residue 5 times, then is put into baking oven at 105 DEG C dry 12h after being washed with distilled water 5 times and obtains
Oxidation product；Count in parts by weight, by etc. quality mass fraction be 20% silver nitrate solution and cetyl trimethyl bromination
Ammonium is put into beaker, obtains reaction solution with the rotating speed stirring 10min of 240r/min with blender, reaction solution and sodium borohydride are pressed
Mass ratio 10:It is put into ultrasonic vibration instrument after 1 mixing, dispersion liquid is obtained with the frequency ultrasound concussion 3h of 32kHz, by above-mentioned oxidation
Product and dispersion liquid in mass ratio 1:8 mixing are simultaneously multiple metal is made after the frequency ultrasound concussion 2h of 32kHz with ultrasonic vibration instrument
Object is closed, it is spare；It counts in parts by weight, by 22 parts of poly- methylhydrogen silicones, 4 parts of allyl glycidyl ethers, 8 parts of metering systems
Sour octadecyl is put into three-necked flask, and nitrogen is passed through with the rate of 50mL/min, in the condition that stir speed (S.S.) is 300r/min
Under be warming up to 95 DEG C, add 2 parts of chloroplatinic acids, isothermal reaction 4h obtains mixed emulsion；It counts in parts by weight, by 12 parts of positive silicic acid
The ammonium hydroxide and 8 parts of absolute ethyl alcohols that ethyl ester, 6 parts of mass fractions are 40% are put into beaker and mix, and are put into the water that bath temperature is 70 DEG C
In bath, colloidal sol is obtained after standing 2h, the 3- aminopropyl triethoxysilanes of colloidal sol quality 15% are added into colloidal sol, with stirring
Device after the rotating speed stirring 40min of 600r/min to obtain modification sol；By modification sol and mixed emulsion in mass ratio 1:3 mixing
It is fitted into afterwards in the three-necked flask with reflux condensing tube, is 400r/min in speed of agitator, temperature is reacted under conditions of being 85 DEG C
4h obtains thick liquid, spare；Count in parts by weight, by 100 parts of portland cements, 15 parts of spare metal composites, 10 parts
In flyash, 5 parts of gypsum, 8 parts of aluminium powder cream, 9 parts of magnesia and 190 parts of water input reaction kettles, in the speed conditions of 500r/min
Lower stirring 30min obtains mixed serum；Mixed serum is subjected to cast and stands 4h under conditions of temperature is 70 DEG C, obtains embryo
Body cuts idiosome, obtains aerating brick, impregnates aerating brick 5 days with spare thick liquid, then aerating brick is put
Enter in steam curing stove, is 150 DEG C in temperature, pressure is conserved for 24 hours under conditions of being 2.0MPa up to the impermeable aerating of high intensity
Brick.
The aerated bricks that comparative example is produced with Hangzhou company are as a comparison case
Aerated bricks in the impermeable aerated bricks of high intensity produced by the present invention and comparative example are detected, testing result such as table 1
It is shown：
Technology requires and test method reference《Steam pressurized coagulation scholar building block standard》GB11968-2006 is executed.
1 performance measurement result of table
According to data in table 1 it is found that the impermeable aerated bricks hole ratio of high intensity produced by the present invention is small, intensity is high, it is impervious,
It is substantially better than the aerated bricks of comparative example on resistance to flaking, while preferable refractory temperature can also be retained, can effectively improve aerated bricks
During use phenomena such as the cracking of coat of plaster, hollowing, leakage, there is wide prospect of the application.
Claims (10)
1. a kind of preparation method of the impermeable aerated bricks of high intensity, it is characterised in that specifically preparation process is：
（1）It counts in parts by weight, weighs 40~50 parts of concentrated sulfuric acids, 1~3 part of sodium nitrate powder and 2~4 parts of graphite powders and be put into three mouthfuls
In flask, three-necked flask is placed in water-bath and is stirred with blender, 5~8 parts of potassium permanganate powders are added after being stirred and hold
10~15min of continuous stirring, then increases bath temperature, 30~40min of isothermal reaction obtains dark brown liquid；
（2）The deionized water of above-mentioned dark brown liquid quality 200~240% is added into three-necked flask, increases bath temperature to 88
~92 DEG C, 15~18min of isothermal reaction obtains mixed liquor, and the hydrogen peroxide of mixed liquor quality 20~30% is added into mixed liquor,
Keep bath temperature 20~25min of isothermal reaction, obtain suspension, filter residue be obtained by filtration while hot, with dilute hydrochloric acid wash filter residue 3~
5 times, then be placed in oven and dried to obtain oxidation product after being washed with distilled water 3~5 times；
（3）Count in parts by weight, by etc. quality silver nitrate solution and cetyl trimethylammonium bromide be put into beaker, with stirring
It mixes device and stirs to get reaction solution, by reaction solution and sodium borohydride in mass ratio 10:It is put into ultrasonic vibration instrument after 1 mixing, with 30
The frequency ultrasound of~32kHz shakes 2~3h and obtains dispersion liquid, by above-mentioned oxidation product and dispersion liquid in mass ratio 1:8 mixing are simultaneously
Metal composite is made after shaking 1~2h with ultrasonic vibration instrument with the frequency ultrasound of 30~32kHz, it is spare；
（4）Count in parts by weight, by 20~22 parts of poly- methylhydrogen silicones, 2~4 parts of allyl glycidyl ethers, 5~8 parts
Methacrylic acid octadecyl is put into three-necked flask, is passed through nitrogen, is stirred and is warming up to 85~95 DEG C, adds 1~2 part of chlorine
Platinic acid, 3~4h of isothermal reaction obtain mixed emulsion；
（5）It counts in parts by weight, 10~12 parts of ethyl orthosilicates, 5~6 parts of ammonium hydroxide and 7~8 parts of absolute ethyl alcohols is put into beaker
Mixing, is put into water-bath, and colloidal sol is obtained after standing 1~2h, and the 3- aminopropyls three of colloidal sol quality 10~15% are added into colloidal sol
Ethoxysilane obtains modification sol after being stirred with blender；
（6）By modification sol and mixed emulsion in mass ratio 1:It is fitted into the three-necked flask with reflux condensing tube, stirs after 3 mixing
Reaction is mixed, thick liquid is obtained, it is spare；
（7）It counts in parts by weight, by 95~100 parts of portland cements, 10~15 parts of spare metal composites, 5~10 parts of powder
In coal ash, 2~5 parts of gypsum, 4~8 parts of aluminium powder cream, 5~9 parts of magnesia and 180~190 parts of water input reaction kettles, stir to get
Mixed serum；
（8）Mixed serum is poured into a mould and stood, idiosome is obtained, idiosome is cut, obtains aerating brick, with spare
Thick liquid impregnates aerating brick 3~5 days, then aerating brick is put into steam curing stove to conserve and is added up to high intensity is impermeable
Gas brick.
2. a kind of preparation method of the impermeable aerated bricks of high intensity according to claim 1, it is characterised in that：Step（1）
Described in concentrated sulfuric acid mass fraction be 80~90%, bath temperature be 0~5 DEG C, blender stir speed (S.S.) be 300~350r/
Min, mixing time are 10~15min, and warming-in-water temperature is to 35~40 DEG C.
3. a kind of preparation method of the impermeable aerated bricks of high intensity according to claim 1, it is characterised in that：Step（2）
Described in hydrogen peroxide mass fraction be 20~25%, dilute hydrochloric acid mass fraction be 3~5%, oven temperature be 100~105 DEG C, do
The dry time is 10~12h.
4. a kind of preparation method of the impermeable aerated bricks of high intensity according to claim 1, it is characterised in that：Step（3）
Described in.
5. the mass fraction of silver nitrate solution be 15~20%, agitator speed be 200~240r/min, mixing time be 8~
10min。
6. a kind of preparation method of the impermeable aerated bricks of high intensity according to claim 1, it is characterised in that：Step（4）
Described in be passed through nitrogen rate be 50mL/min, speed of agitator be 250~300r/min.
7. a kind of preparation method of the impermeable aerated bricks of high intensity according to claim 1, it is characterised in that：Step（5）
Described in ammonium hydroxide mass fraction be 30~40%, bath temperature be 60~70 DEG C, agitator speed be 500~600r/min,
Mixing time is 30~40min.
8. a kind of preparation method of the impermeable aerated bricks of high intensity according to claim 1, it is characterised in that：Step（6）
Described in speed of agitator be 300~400r/min, reaction temperature be 80~85 DEG C, the reaction time be 3~4h.
9. a kind of preparation method of the impermeable aerated bricks of high intensity according to claim 1, it is characterised in that：Step（7）
Described in speed of agitator be 450~500r/min, mixing time be 20~30min.
10. a kind of preparation method of the impermeable aerated bricks of high intensity according to claim 1, it is characterised in that：Step（8）
Described in cast when temperature be 60~70 DEG C, time of repose is 3~4h, and temperature is 140~150 DEG C in steam curing stove, pressure
Power be 1.5~2.0MPa, curing time be 22~for 24 hours.
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