CN108863256A - A kind of antibacterial aerated bricks - Google Patents
A kind of antibacterial aerated bricks Download PDFInfo
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- CN108863256A CN108863256A CN201810667700.4A CN201810667700A CN108863256A CN 108863256 A CN108863256 A CN 108863256A CN 201810667700 A CN201810667700 A CN 201810667700A CN 108863256 A CN108863256 A CN 108863256A
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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
- C04B28/10—Lime cements or magnesium oxide 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
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of antibacterial aerated bricks, belong to building material technical field.According to parts by weight, it successively weighs：8~15 parts of cement, 10~15 parts of quick limes, 2~3 parts of quartz sands, 1~2 part of sodium bicarbonate, 0.5~1.2 part of aluminium powder, 0.5~0.8 part of zinc stearate, 3~5 parts of surfactants, 20~35 parts of ground granulated blast furnace slags, 10~15 parts of additives, 5~8 parts of modified isocyanates, 1~2 part of bentonite and 5~12 parts of water, raw material is sequentially added in blender, it is stirred, obtain mixture, by mixture casting, and under conditions of in temperature being 40~50 DEG C after 3~6h of precuring, demoulding, obtain adobe material, by adobe material in temperature be 170~180 DEG C, under conditions of pressure is 0.9~1.2MPa after 10~13h of steam press maintenance, obtain antibacterial aerated bricks.The antibacterial aerated bricks of technical solution of the present invention preparation have the characteristics that excellent antibiotic property and mechanical property, have broad prospects in the development of building material industry.
Description
Technical field
The invention discloses a kind of antibacterial aerated bricks, belong to building material technical field.
Background technique
Aerated bricks are " autoclave aerated concrete building block ", and abbreviation aerated bricks are produced by autoclave at high temperature apparatus and process
Air-entrained concrete building block." aerated bricks " can be understood as a simplified or general title.Its product model covered
The brick product of other various techniques productions including steam pressure will be used by enclosing.The advantages of aerated bricks is：1, again
Amount is light.The general weight of air-entrained concrete building block is 500~700kg/m3, is only equivalent to clay brick 1/4~1/5, normal concrete
1/5, be lighter one kind in concrete.Self weight than common brick concrete structure building reduces by 40% or more.2, thermal insulation separation
Good in thermal property.The thermal coefficient of air entrained concrete is the 1/6 of normal concrete, and heat-proof quality is significantly better than the clay of 240mm thickness
Brick wall body.3, shock resistance is strong.Air entrained concrete light capacity, overall performance be good, earthquake when inertia force it is small, so having certain
Shock resistance.4, processing performance is good.Air entrained concrete has good processing performance, can saw, digs, follows closely, mills, bore, and gives construction band
Carry out very big convenience and flexibly.5, with certain heat-resisting quantity.Air entrained concrete is when temperature is 600 degree or less, resistance to compression
Intensity slightly increases, and when temperature is at 600 degree or so, compression strength when compression strength is close to room temperature, fire protecting performance reaches
Country-level fire-protection standard.6, sound insulation value is good.The internal structure image planes packet of air entrained concrete is the same, is evenly distributed a large amount of
Sealed porosity, therefore sound absorption qualities not having with common buildings material.7, adaptable.It can be according to local different former
Material, different condition are carried out amount body and are made surely.River sand, flyash, ore in sand form etc., adaptation to local conditions may be selected in raw material.In view of all kinds of rings
The use of aerated bricks in border, bacterium can breed on its surface and provide under suitable environment for all kinds of harmful microorganisms good
Living environment, for its growth and breeding, to endanger the living environment and health of people.Therefore research and development has anti-
The aerated bricks of bacterium performance have great significance to people's lives health.
And the problem of traditional aerated bricks are insufficient there is also anti-microbial property, and mechanical property can not further increase, therefore, such as
The shortcomings that anti-microbial property what improves traditional aerated bricks is insufficient, and mechanical property can not further increase is provided in the hope of exploring to develop
The aerated bricks of good comprehensive performance are problems to be solved.
Summary of the invention
The present invention solves the technical problem of：Insufficient for traditional aerated bricks anti-microbial property, mechanical property can not be into
The shortcomings that one step improves, provides a kind of antibacterial aerated bricks.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that：
A kind of antibacterial aerated bricks, are made of the raw material of following parts by weight：
8~15 parts of cement
10~15 parts of quick lime
2~3 parts of quartz sand
1~2 part of sodium bicarbonate
0.5~1.2 part of aluminium powder
0.5~0.8 part of zinc stearate
3~5 parts of surfactant
20~35 parts of ground granulated blast furnace slag
10~15 parts of additive
5~8 parts of modified isocyanate
1~2 part of bentonite
5~12 parts of water
The preparation method of the additive is：
1~2 times of trisodium phosphate solution quality of calcium nitrate solution is instilled in trisodium phosphate solution, pH to 9.0~10.0 is adjusted,
After being stirred, ageing adjusts pH to 7.0, obtains hydroxyapatite slurry, and copper-bath and hydroxyapatite slurry are pressed matter
Measure ratio 1：2~1：3 mixing, and 1~2 times of copper-bath quality of water is added, ultrasonic disperse impregnates, and filters, and washs, and it is dry,
Grinding, obtains pretreatment powder, by pretreatment powder and magnesium powder in mass ratio 4：1 mixing, obtains mixed powder, by mixed powder pressure
Piece, and be sintered, it crushes, sieving obtains modified powder, by modified powder and ethanol water in mass ratio 1：5~1：8 mixing, and
0.2~0.3 times of modified powder quality of silane coupling agent is added, after being stirred, filters, washing dry, pulverize sieving, obtain
Pretreatment modification powder, by pretreatment modification powder and epoxy resin in mass ratio 1：3~1：4 mixing, obtain additive；
The preparation method of the modified isocyanate is：
By end-capping reagent and DMAC N,N' dimethyl acetamide in mass ratio 3：10 mixing, obtain sealing end liquid, by diisocyanate quality 2~3
Sealing end drop again enters in diisocyanate, is stirred to react, obtains modified isocyanate blank, by modified isocyanate blank vacuum
It is dry, obtain modified isocyanate.
The cement is any one in portland cement or aluminate cement, preferably portland cement.
The quartz sand particle size is 150 mesh.
The surfactant is neopelex, any one in Arlacel-80 or Tween-80.
The ground granulated blast furnace slag partial size is 200 mesh.
The silane coupling agent is silane resin acceptor kh-550, in silane coupling agent KH-560 or Silane coupling reagent KH-570
Any one.
The end-capping reagent is n-butanol, any one in diethylamine or cyclohexylamine.
The diisocyanate is toluene di-isocyanate(TDI), and 4,4- methyl diphenylene diisocyanates or isophorone two are different
Any one in cyanate.
The beneficial effects of the invention are as follows：
（1）Additive is added when preparing antibacterial aerated bricks in the present invention, firstly, contain modified powder in additive, modified powder
In containing the hydroxyapatite of copper ion and magnesia has been adsorbed, the antibiotic property of product can be effectively improved after being added in product
Can, and due to the addition of hydroxyapatite, it can make product that there is preferable compression strength, secondly, modified powder in additive
It is mixed after the pre-treatment with epoxy resin, pretreatment modification powder can be uniformly distributed in asphalt mixtures modified by epoxy resin under the action of silane coupling agent
In rouge, to make epoxy resin that there is preferable antibiotic property, and after being added in product, additive can in surfactant and
It is uniformly distributed in product during getting angry, and then improves the antibiotic property of product；
（2）Modified isocyanate is added when preparing antibacterial aerated bricks in the present invention, on the one hand, product is being added in modified isocyanate
In after can be unsealed during steam press maintenance, to generate the lower end-capping reagent of boiling point, be uniformly distributed the additive being added, and
Play the role of certain pore, so that the antibiotic property of product be made to improve, on the other hand, the isocyanates that solution is honored as a queen can meet water and occur instead
Answer, generate amine substance and carbon dioxide so that epoxy resin cure, and then make product compression strength and antibiotic property into
One step improves.
Specific embodiment
The trisodium phosphate solution that mass fraction is 15~25% is added in flask, and into flask with 2~5mL/min's
The calcium nitrate solution that the mass fraction of 1~2 times of the trisodium phosphate solution quality that rate mass fraction is 15~25% is 15~25%,
And with mass fraction be 12~18% sodium hydroxide solution adjust flask in material pH to 9.0~10.0, in temperature be 60~65
DEG C, revolving speed be 200~300r/min under conditions of be stirred 1~2h after, under room temperature be aged 20~28h, spend from
Material pH in flask is diluted to 7.0 by sub- water, obtains hydroxyapatite slurry, the copper-bath for being 15~25% by mass fraction
With hydroxyapatite slurry in mass ratio 1：2~1：In 3 mixing and beaker, and copper-bath quality 1~2 is added into beaker
Times water, under conditions of frequency is 45~55kHz after 15~20min of ultrasonic disperse, and in impregnate 20 under room temperature~
25h, filtering, obtains filter cake, after filter cake is washed with water 2~3 times, dry 40 under conditions of being 120~130 DEG C in temperature~
Filter cake after drying is ground, obtains pretreatment powder by 50min, by pretreatment powder and magnesium powder in mass ratio 4：1 mixing, in turn
Under conditions of speed is 300~400r/min, it is stirred 20~30min, obtains mixed powder, by mixed powder in pressure position
Tabletting under conditions of 200MPa obtains modified powder blank, by modified powder blank under conditions of temperature is 1000~1200 DEG C
It after being sintered 1~2h, crushes, crosses 200 meshes, obtain modified powder, the ethanol water that modified powder is 90% with mass fraction is pressed
Mass ratio 1：5~1：8 mixing, and modified powder quality 0.2~0.3 is added into the mixture of modified powder and ethanol water
Times silane coupling agent, in temperature be 40~60 DEG C, revolving speed be 300~350r/min under conditions of be stirred 1~2h after, mistake
Filter, obtains pretreatment modification powder blank, after pretreatment modification powder blank water and dehydrated alcohol are washed 5 times respectively, Yu Wen
Degree dry 40~50min under conditions of being 80~90 DEG C, crushed 200 meshes for the pretreatment modification powder blank after drying,
Pretreatment modification powder is obtained, by pretreatment modification powder and epoxy resin in mass ratio 1：3~1：4 mixing, in temperature be 45~
65 DEG C, under conditions of revolving speed is 300~400r/min, after being stirred 1~2h, obtain additive；By end-capping reagent and N, N- diformazan
Yl acetamide in mass ratio 3：10 mixing are 45~65 DEG C in temperature, and under conditions of revolving speed is 200~300r/min, stirring is mixed
After closing 30~40min, sealing end liquid is obtained, diisocyanate is added in three-necked flask, and into three-necked flask with 2~4mL/min
Rate instill 2~3 times of diisocyanate quality of sealing end liquid, nitrogen is passed through with the rate of 5~15mL/min into three-necked flask
Gas is 45~55 DEG C in temperature, after revolving speed is stirred to react 2~3h under conditions of being 200~300r/min, obtains modified isocyanate
Blank is dried in vacuo 72~78h under conditions of being 40~60 DEG C in temperature by modified isocyanate blank, obtains modified isocyanic acid
Ester successively weighs according to parts by weight：8~15 parts of cement, 10~15 parts of quick limes, 2~3 parts of quartz sands, 1~2 part of bicarbonate
Sodium, 0.5~1.2 part of aluminium powder, 0.5~0.8 part of zinc stearate, 3~5 parts of surfactants, 20~35 parts of ground granulated blast furnace slags, 10~
15 parts of additives, 5~8 parts of modified isocyanates, 1~2 part of bentonite and 5~12 parts of water, raw material is sequentially added in blender,
It is 45~55 DEG C in temperature, under conditions of revolving speed is 200~400r/min, after being stirred 30~40min, obtains mixture, it will
Mixture casting, and under conditions of being 40~50 DEG C in temperature after 3~6h of precuring, demoulding obtains adobe material, by adobe material
It is 170~180 DEG C in temperature, under conditions of pressure is 0.9~1.2MPa after 10~13h of steam press maintenance, obtains antibacterial aerated bricks.Institute
Stating cement is any one in portland cement or aluminate cement, preferably portland cement.The quartz sand particle size is 150
Mesh.The surfactant is neopelex, any one in Arlacel-80 or Tween-80.The ground granulated blast furnace slag
Partial size is 200 mesh.The silane coupling agent is silane resin acceptor kh-550, silane coupling agent KH-560 or silane coupling agent KH-
Any one in 570.The end-capping reagent is n-butanol, any one in diethylamine or cyclohexylamine.The diisocyanate is first
Phenylene diisocyanate, any one in 4,4- methyl diphenylene diisocyanates or isophorone diisocyanate.
The trisodium phosphate solution that mass fraction is 25% is added in flask, and into flask with the rate quality of 5mL/min
The calcium nitrate solution that the mass fraction of 2 times of the trisodium phosphate solution quality that score is 25% is 25%, and be 18% with mass fraction
Sodium hydroxide solution adjusts material pH to 10.0 in flask, is 65 DEG C in temperature, revolving speed stirs mixed under conditions of being 300r/min
After closing 2h, in being aged 28h under room temperature, material pH in flask is diluted to 7.0 with deionized water, obtains hydroxyapatite slurry
Material, the copper-bath and hydroxyapatite slurry in mass ratio 1 for being 25% by mass fraction：3 mixing in beaker, and to burning
2 times of copper-bath quality of water is added in cup, under conditions of frequency is 55kHz after ultrasonic disperse 20min, and in room temperature item
25h is impregnated under part, filters, obtains filter cake, and after filter cake is washed with water 3 times, dry 50min under conditions of being 130 DEG C in temperature will
Filter cake grinding after drying, obtains pretreatment powder, by pretreatment powder and magnesium powder in mass ratio 4：1 mixing, in revolving speed be 400r/
Under conditions of min, it is stirred 30min, obtains mixed powder, mixed powder tabletting under conditions of the 200MPa of pressure position obtains
Modified powder blank crushes after being sintered 2h under conditions of being 1200 DEG C in temperature by modified powder blank, crosses 200 meshes, must change
Property powder, the ethanol water in mass ratio 1 for being 90% by modified powder and mass fraction：8 mixing, and to modified powder and second
0.3 times of modified powder quality of silane coupling agent is added in the mixture of alcohol solution, in temperature be 60 DEG C, revolving speed 350r/
After being stirred 2h under conditions of min, filtering obtains pretreatment modification powder blank, by pretreatment modification powder blank water and
After dehydrated alcohol washs 5 times respectively, the dry 50min under the conditions of at a temperature of 90 °C, by the pretreatment modification powder after drying
Blank crushed 200 meshes, obtain pretreatment modification powder, by pretreatment modification powder and epoxy resin in mass ratio 1：4 mixing,
It is 65 DEG C in temperature, under conditions of revolving speed is 400r/min, after being stirred 2h, obtains additive；By end-capping reagent and N, N- diformazan
Yl acetamide in mass ratio 3：10 mixing, in temperature be 65 DEG C, revolving speed be 300r/min under conditions of, after being stirred 40min,
Liquid must be blocked, diisocyanate is added in three-necked flask, and diisocyanate is instilled with the rate of 4mL/min into three-necked flask
3 times of ester quality of sealing end liquid, is passed through nitrogen into three-necked flask with the rate of 15mL/min, is 55 DEG C in temperature, revolving speed is
After being stirred to react 3h under conditions of 300r/min, obtain modified isocyanate blank, by modified isocyanate blank in temperature be 60
It is dried in vacuo 78h under conditions of DEG C, obtains modified isocyanate, according to parts by weight, successively weighs：15 parts of cement, 15 parts of raw stones
Ash, 3 parts of quartz sands, 2 parts of sodium bicarbonates, 1.2 parts of aluminium powders, 0.8 part of zinc stearate, 5 parts of surfactants, 35 parts of blast-furnace cinders
Powder, 15 parts of additives, 8 parts of modified isocyanates, 2 parts of bentonites and 12 parts of water, raw material are sequentially added in blender, in temperature
It is 55 DEG C, under conditions of revolving speed is 400r/min, after being stirred 40min, obtains mixture, by mixture casting, and in
Temperature be 50 DEG C under conditions of after precuring 6h, it in temperature is 180 DEG C by adobe material that demoulding, which obtains adobe material, pressure 1.2MPa
Under conditions of after steam press maintenance 13h, obtain antibacterial aerated bricks.The cement is portland cement.The quartz sand particle size is 150
Mesh.The surfactant is neopelex.The ground granulated blast furnace slag partial size is 200 mesh.The silane coupling agent
For silane resin acceptor kh-550.The end-capping reagent is n-butanol.The diisocyanate is toluene di-isocyanate(TDI).
By end-capping reagent and DMAC N,N' dimethyl acetamide in mass ratio 3：10 mixing, in temperature be 65 DEG C, revolving speed 300r/
Under conditions of min, after being stirred 40min, sealing end liquid is obtained, diisocyanate is added in three-necked flask, and to three-necked flask
In 3 times of diisocyanate quality of sealing end liquid is instilled with the rate of 4mL/min, it is logical with the rate of 15mL/min into three-necked flask
Enter nitrogen, is 55 DEG C in temperature, after revolving speed is stirred to react 3h under conditions of being 300r/min, obtains modified isocyanate blank, it will
Modified isocyanate blank is dried in vacuo 78h under conditions of being 60 DEG C in temperature, obtains modified isocyanate, according to parts by weight,
Successively weigh：15 parts of cement, 15 parts of quick limes, 3 parts of quartz sands, 2 parts of sodium bicarbonates, 1.2 parts of aluminium powders, 0.8 part of zinc stearate, 5
Part surfactant, 35 parts of ground granulated blast furnace slags, 8 parts of modified isocyanates, 2 parts of bentonites and 12 parts of water, raw material is sequentially added
In blender, it is 55 DEG C in temperature, under conditions of revolving speed is 400r/min, after being stirred 40min, obtains mixture, will mix
Expect casting, and under conditions of being 50 DEG C in temperature after precuring 6h, demoulding obtains adobe material, by adobe material in temperature be 180
DEG C, under conditions of pressure is 1.2MPa after steam press maintenance 13h, obtain antibacterial aerated bricks.The cement is portland cement.The stone
Sand partial size is 150 mesh.The surfactant is neopelex.The ground granulated blast furnace slag partial size is 200 mesh.Institute
Stating end-capping reagent is n-butanol.The diisocyanate is toluene di-isocyanate(TDI).
The trisodium phosphate solution that mass fraction is 25% is added in flask, and into flask with the rate quality of 5mL/min
The calcium nitrate solution that the mass fraction of 2 times of the trisodium phosphate solution quality that score is 25% is 25%, and be 18% with mass fraction
Sodium hydroxide solution adjusts material pH to 10.0 in flask, is 65 DEG C in temperature, revolving speed stirs mixed under conditions of being 300r/min
After closing 2h, in being aged 28h under room temperature, material pH in flask is diluted to 7.0 with deionized water, obtains hydroxyapatite slurry
Material, the copper-bath and hydroxyapatite slurry in mass ratio 1 for being 25% by mass fraction：3 mixing in beaker, and to burning
2 times of copper-bath quality of water is added in cup, under conditions of frequency is 55kHz after ultrasonic disperse 20min, and in room temperature item
25h is impregnated under part, filters, obtains filter cake, and after filter cake is washed with water 3 times, dry 50min under conditions of being 130 DEG C in temperature will
Filter cake grinding after drying, obtains pretreatment powder, by pretreatment powder and magnesium powder in mass ratio 4：1 mixing, in revolving speed be 400r/
Under conditions of min, it is stirred 30min, obtains mixed powder, mixed powder tabletting under conditions of the 200MPa of pressure position obtains
Modified powder blank crushes after being sintered 2h under conditions of being 1200 DEG C in temperature by modified powder blank, crosses 200 meshes, must change
Property powder, the ethanol water in mass ratio 1 for being 90% by modified powder and mass fraction：8 mixing, and to modified powder and second
0.3 times of modified powder quality of silane coupling agent is added in the mixture of alcohol solution, in temperature be 60 DEG C, revolving speed 350r/
After being stirred 2h under conditions of min, filtering obtains pretreatment modification powder blank, by pretreatment modification powder blank water and
After dehydrated alcohol washs 5 times respectively, the dry 50min under the conditions of at a temperature of 90 °C, by the pretreatment modification powder after drying
Blank crushed 200 meshes, obtain pretreatment modification powder, by pretreatment modification powder and epoxy resin in mass ratio 1：4 mixing,
It is 65 DEG C in temperature, under conditions of revolving speed is 400r/min, after being stirred 2h, obtains additive；According to parts by weight, successively claim
It takes：15 parts of cement, 15 parts of quick limes, 3 parts of quartz sands, 2 parts of sodium bicarbonates, 1.2 parts of aluminium powders, 0.8 part of zinc stearate, 5 parts of surfaces
35 parts of ground granulated blast furnace slags of activating agent, 15 parts of additives, 2 parts of bentonites and 12 parts of water, raw material are sequentially added in blender, Yu Wen
Degree is 55 DEG C, under conditions of revolving speed is 400r/min, after being stirred 40min, obtains mixture, by mixture casting, and
Under conditions of being 50 DEG C in temperature after precuring 6h, demoulding obtains adobe material, in temperature is 180 DEG C by adobe material, pressure is
Under conditions of 1.2MPa after steam press maintenance 13h, antibacterial aerated bricks are obtained.The cement is portland cement.The quartz sand particle size
For 150 mesh.The surfactant is neopelex.The ground granulated blast furnace slag partial size is 200 mesh.The silane is even
Connection agent is silane resin acceptor kh-550.
Comparative example：Taiyuan construction material limits the aerated bricks of company's production.
Example 1 to the resulting antibacterial aerated bricks of example 3 and comparative example product are subjected to performance detection, specific detection method is such as
Under：
Improvement oscillation flask method is selected to be tested, strain, which is selected on nature and human skin, is distributed most commonly used golden yellow
Portugal of Portugal coccus, Escherichia coli and Candida albicans.Test result bacteriostasis rate and bacteriostasis rate difference indicate, the calculating difference of the two
Such as formula（1）It is shown：
Y=（Xa-Xb）/Xa·100% （1）
In formula：Y is bacteriostasis rate, %；Xa is clump count before sample vibrates；Xb is clump count after sample oscillation.And test test specimen resistance to compression
Intensity.
Specific testing result is as shown in table 1：
1 antibacterial aerated bricks performance test results of table
| Detection project | Example 1 | Example 2 | Example 3 | Comparative example |
| Bacteriostasis rate/% | 84 | 75 | 53 | 0 |
| Compression strength/MPa | 8.1 | 5.9 | 4.3 | 3.0 |
By 1 testing result of table it is found that the antibacterial aerated bricks of technical solution of the present invention preparation have excellent antibiotic property and mechanical property
It the characteristics of energy, has broad prospects in the development of building material industry.
Claims (8)
1. a kind of antibacterial aerated bricks, which is characterized in that be made of the raw material of following parts by weight：
8~15 parts of cement
10~15 parts of quick lime
2~3 parts of quartz sand
1~2 part of sodium bicarbonate
0.5~1.2 part of aluminium powder
0.5~0.8 part of zinc stearate
3~5 parts of surfactant
20~35 parts of ground granulated blast furnace slag
10~15 parts of additive
5~8 parts of modified isocyanate
1~2 part of bentonite
5~12 parts of water
The preparation method of the additive is：
1~2 times of trisodium phosphate solution quality of calcium nitrate solution is instilled in trisodium phosphate solution, pH to 9.0~10.0 is adjusted,
After being stirred, ageing adjusts pH to 7.0, obtains hydroxyapatite slurry, and copper-bath and hydroxyapatite slurry are pressed matter
Measure ratio 1：2~1：3 mixing, and 1~2 times of copper-bath quality of water is added, ultrasonic disperse impregnates, and filters, and washs, and it is dry,
Grinding, obtains pretreatment powder, by pretreatment powder and magnesium powder in mass ratio 4：1 mixing, obtains mixed powder, by mixed powder pressure
Piece, and be sintered, it crushes, sieving obtains modified powder, by modified powder and ethanol water in mass ratio 1：5~1：8 mixing, and
0.2~0.3 times of modified powder quality of silane coupling agent is added, after being stirred, filters, washing dry, pulverize sieving, obtain
Pretreatment modification powder, by pretreatment modification powder and epoxy resin in mass ratio 1：3~1：4 mixing, obtain additive；
The preparation method of the modified isocyanate is：
By end-capping reagent and DMAC N,N' dimethyl acetamide in mass ratio 3：10 mixing, obtain sealing end liquid, by diisocyanate quality 2~3
Sealing end drop again enters in diisocyanate, is stirred to react, obtains modified isocyanate blank, by modified isocyanate blank vacuum
It is dry, obtain modified isocyanate.
2. a kind of antibacterial aerated bricks according to claim 1, it is characterised in that：The cement is portland cement or aluminic acid
Any one in salt cement, preferably portland cement.
3. a kind of antibacterial aerated bricks according to claim 1, it is characterised in that：The quartz sand particle size is 150 mesh.
4. a kind of antibacterial aerated bricks according to claim 1, it is characterised in that：The surfactant is detergent alkylate
Any one in sodium sulfonate, Arlacel-80 or Tween-80.
5. a kind of antibacterial aerated bricks according to claim 1, it is characterised in that：The ground granulated blast furnace slag partial size is 200 mesh.
6. a kind of antibacterial aerated bricks according to claim 1, it is characterised in that：The silane coupling agent is silane coupling agent
Any one in KH-550, silane coupling agent KH-560 or Silane coupling reagent KH-570.
7. a kind of antibacterial aerated bricks according to claim 1, it is characterised in that：The end-capping reagent is n-butanol, diethylamine
Or any one in cyclohexylamine.
8. a kind of antibacterial aerated bricks according to claim 1, it is characterised in that：The diisocyanate is toluene diisocyanate
Acid esters, any one in 4,4- methyl diphenylene diisocyanates or isophorone diisocyanate.
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| CN113896500A (en) * | 2021-09-27 | 2022-01-07 | 贵州恒源科创资源再生开发有限公司 | Preparation method of sand-free paste-based self-leveling slurry |
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| CN108863256B (en) | 2020-08-28 |
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