CN108129100A - Environment-protection nano diatom mud dry powder and preparation method thereof - Google Patents
Environment-protection nano diatom mud dry powder and preparation method thereof Download PDFInfo
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- CN108129100A CN108129100A CN201711457080.3A CN201711457080A CN108129100A CN 108129100 A CN108129100 A CN 108129100A CN 201711457080 A CN201711457080 A CN 201711457080A CN 108129100 A CN108129100 A CN 108129100A
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
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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
- C04B2111/00025—Aspects relating to the protection of the health, e.g. materials containing special additives to afford skin protection
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Abstract
The embodiment of the present invention provides a kind of environment-protection nano diatom mud dry powder and preparation method thereof, the environment-protection nano diatom mud dry powder is made of component A well prepared in advance and component B mixings, mass percents of the component A and component B in environment-protection nano diatom mud dry powder is respectively 20% ~ 30% and 70% ~ 80%, wherein, the raw material of the component A is included with mass parts：65 ~ 80 parts of diatomite, 10 ~ 15 parts of titanium tetrachloride solution, 5 ~ 15 parts of zinc oxide, 1 ~ 3 part of hydrochloric acid, 1 ~ 3 part of sal volatile, 1 ~ 3 part of ammonium sulfate and enough water；The raw material of the component B includes by percentage to the quality：Latex powder 25% ~ 30%, titanium dioxide 15% ~ 20%, calcium carbonate 15% ~ 20%, silica flour 5% ~ 10%, kaolin 5% ~ 10% and white cement 5% ~ 10%.Environment-protection nano diatom mud dry powder provided in an embodiment of the present invention is environmentally protective, without organic pollutions such as VOCs, formaldehyde, benzene classes, can make full use of the complementary advantage of storeroom, the extremely strong quality that efficiently and effectively purifies the air of a room, moreover it is possible to antibacterial and mouldproof.
Description
Technical field
The present embodiments relate to aqueous functional type building material technical field, specifically a kind of environment-protection nano diatom ooze
Dry powder and preparation method thereof.
Background technology
With the development and progress of social civilization, the improvement of people's living condition and pursuit environment protection health life idea, ring
The low-carbon environment-friendly consciousness gradually enhancing in border, other than the decoration functions to coating require, more focuses on to health and ring
The demand of border protection, while the environmental regulation that various countries formulate is all to volatile organic matter in coating（VOCs）There are stringent limitation, people
Generally have urgent and rigid demand to environment-friendly type, economizing type building materials, building coating towards environmental protection, energy-saving, functionalization,
Develop in terms of no dust and controlled release, environmentally friendly noresidue is also by one of direction developed as building coating Technology effort.
Existing building coating diatom ooze is the characteristic that the good absorption property of diatomite and natural environmental-protective is utilized, then is assisted
Inorganic bond ingredient adds water to become plasticity very strong " mud " after stirring, then add various pigment just become it is a kind of both can be with
It substitutes wallpaper and carrys out decorative architecture metope, there is higher specific surface area and adsorb various organic and inorganic pollutants, material
It is easy to get, is easy for construction, having good prospect in building material field.
Existing building field diatom ooze product is yet there are some shortcomings in the market, such as just with its adsorptivity
Can, pollutant is transferred out from air or in water, there is no removing, the solids after the exhaust gas of absorption is handled harmful substance
Sludge after waste water is treated as being limited in an important factor for applying in environmental protection again, and it is tight to form cycle to environment and water source
Heavily contaminated, while also cost is higher or even containing the harmful poisonous volatile substance such as aromatic hydrocarbons, highly basic, heavy metal, certain kinds
It is not ideal enough to the advanced treating of exhaust gas and waste water, the shortcomings such as physical property difference.
Invention content
Technical problems to be solved of the embodiment of the present invention are, provide a kind of environment-protection nano diatom mud dry powder, can applied
While covering the substrate surface formation performances such as effective protection, antibacterial and mouldproof, moreover it is possible to effectively purify air quality.
The further technical problems to be solved of the embodiment of the present invention are, provide a kind of environment-protection nano diatom mud dry powder and prepare
Method, preparation process is simple, and low energy consumption, easy to implement, and so as to can be efficient, energy saving preparing can be in coated substrate surface
While forming the performances such as effective protection, antibacterial and mouldproof, moreover it is possible to the effectively environment-protection nano diatom mud dry powder of purification air quality.
In order to solve the above technical problems, the embodiment of the present invention adopts the following technical scheme that：A kind of environment-protection nano diatom ooze is done
Powder is made of component A well prepared in advance and component B mixings, and the component A and component B are in environment-protection nano diatom mud dry powder
Mass percent be respectively 20% ~ 30% and 70% ~ 80%, wherein,
The raw material of the component A is included with mass parts：65 ~ 80 parts of diatomite, 10 ~ 15 parts of titanium tetrachloride solution, zinc oxide 5 ~ 15
Part, 1 ~ 3 part of hydrochloric acid, 1 ~ 3 part of sal volatile, 1 ~ 3 part of ammonium sulfate and enough water；
The raw material of the component B includes by percentage to the quality：Latex powder 25% ~ 30%, titanium dioxide 15% ~ 20%, calcium carbonate 15% ~
20%th, silica flour 5% ~ 10%, kaolin 5% ~ 10% and white cement 5% ~ 10%.
Further, the diatomite be dioxide-containing silica >=92%, grain size≤35 ~ 50um, specific surface area for 180 ~
220 m2/ g, diatom original soil, washing diatomite or calcined diatomite, the silica that pore volume is 0.3 ~ 0.4ml/g contain
Amount refers to noncrystalline SiO2Content.
Further, the titanium tetrachloride solution is the titanium tetrachloride solution that mass percent concentration is 13.8% ~ 16.7%.
Further, the unleaded nano zine oxide that the zinc oxide is 70 ~ 90nm of grain size, purity is 93% ~ 96%.
Further, the hydrochloric acid is the hydrochloric acid solution that mass percent concentration is 36% ~ 38%.
Further, the sal volatile is the sal volatile that mass percent concentration is 13% ~ 16.7%；The sulphur
Acid ammonium solution use mass percent concentration for 13.8% ~ 16.7% ammonium sulfate.
Further, the latex powder is ethylene-vinyl acetate copolymer, vinyl acetate-versatic acid ethylene copolymer
At least one of object, acrylic copolymer；The titanium dioxide is anatase titanium dioxide, plate titanium-type titanium dioxide or rutile
At least one of type titanium dioxide；The calcium carbonate be powdered whiting, gel calcium carbonate or crystal calcium carbonate at least
It is a kind of；At least one of diamond dust, quartz sand or the schmigel of the silica flour for 80 ~ 120 microns of grain size；The kaolin
For calcined kaolin；The white cement is white portland cement.
On the other hand, the embodiment of the present invention provides a kind of environment-protection nano diatom ooze process for preparation of dry powder, comprises the steps of：
Component A and component B are prepared respectively；And
Environment-protection nano diatom mud dry powder is made by component A well prepared in advance and component B mixings, component A and component B account for environmental protection
The mass percent of nanometer diatom ooze dry powder is respectively 20% ~ 30% and 70% ~ 80%；
Wherein, the preparation process of the component A is as follows：
According to the mass parts content of formula, sequentially add whole diatomite, account for the hydrochloric acid of the total dosage 70% ~ 75% of hydrochloric acid and suitable
After water mixing, it is 2 ~ 3 to adjust pH value of solution, stirs 10 ~ 15min with the rotating speed of 500 ~ 800rpm, diatomite suspension is made；
When diatomite suspension temperature is down to 0 ~ 5 DEG C, titanium tetrachloride solution and zinc oxide are sequentially added by formula dosage, simultaneously
10 ~ 15min is stirred with the rotating speed of 200 ~ 300 rpm, then stops stirring and precipitation reaction is hydrolyzed；
Remaining hydrochloric acid and sal volatile are added drop-wise in the diatomite suspension by formula dosage again, with 20 ~ 25min/L
Speed be added dropwise, after being added dropwise with the rotating speed of 200 ~ 300rpm stir 5 ~ 10min, then by temperature rise to 30 ~ 35 DEG C, into
Row insulated and stirred reacts 50 ~ 60min；
It is dripped by formula dosage and ammonium sulfate is added in into the diatomite suspension, rate of addition is 6 ~ 7L/min, adjusts pH
To stopping adding in when 4 ~ 6, insulated and stirred reacts 50 ~ 60min, stops reaction, and it is compound to obtain synthesis nano titanium dioxide/diatomite
Particle；The slurry of the compound particle of above-mentioned synthesis nano titanium dioxide/diatomite is filtered in washing, until inspection do not measure chlorine from
Son after sulfate ion, then is dried at a temperature of 300 ~ 350 DEG C, when to measure moisture content be 2% ~ 3%, with calcination temperature
750 ~ 900 DEG C are calcined 6 ~ 8 hours, and then cooling down to room temperature is to get the component A.
Further, the preparation process of the component B is as follows：According to the mass percentage content of formula successively by latex
Powder, titanium dioxide, calcium carbonate, silica flour, kaolin, white cement are added in dry powder blender, are stirred under the rotating speed of 300 ~ 500rpm
20 ~ 30min of dispersion is mixed to get to B component.
Further, when the component A and component B is mixed, component A is gradually added into component B, is added while stirring,
Until component A and component B are uniformly mixed, then, to get to environment-protection nano diatom mud dry powder after being filtered with 40 ~ 80 mesh filter screens.
Using above-mentioned technical proposal, the embodiment of the present invention at least has the advantages that：Product of the present invention is ensuring to produce
Under the premise of reliability that product use and safety, the intersection of multiple ambits, the infiltration such as from material science to ecological environment
And synthesis, carry out profound comprehensive crossover basic research.System in depth carry out new material application and critical material and
Environmental impact factor and regularity are established under the overall situation background of energy growing tension, using new method, the new theory of testing, are carried
Go out new technology and control theory, on the basis of current material, strengthen emphasis and the product mechanism of action and collaboration efficiency are carried out
Research, effectively make up previous product in use there are the defects of and deficiency.The environment-protection nano diatom mud dry powder of the present invention
And preparation method thereof advantageous effect be embodied in the following aspects.
1. for the present invention using natural diatomaceous earth ore deposit as primary raw material, nano-titanium dioxide is catalytic active component, is successfully captured
Nano-titanium（Photocatalyst）The industrialization production key technology of/diatomite composite material simplifies technological process prepared by production.
Finished product has both the technology of preparing that absorption captures the composite efficient catalysis material of performance and Photocatalytic Degradation Property, using water as base
Matter, water resource are enriched, and especially preparation method is simple for process, are not burnt without using organic solvent, no flash-point problem in preparation process
Do not explode, production storage and it is safe to use.
2. the environment-protection nano diatom mud dry powder of the present invention is powdered material, without formaldehyde and VOCs, heavy metal etc. pair
The volatile matter that environment is harmful to, dry powder-shaped finished product packing, storage and convenient transportation, so as to reduce industrialization cost, conducive to industrialization
Production, can directly add extensively applied to numerous areas, such as water process, coating, woodwork, integral density plate, plastics, paper
The application waited in composite materials is opened, it, can be effectively quick with the key technology of the harmful substances such as indoor formaldehyde of effectively degrading, VOCs
Removal harmful substance, ideal to the advanced treating effect of exhaust gas, and low energy consumption, photocatalysis performance is excellent.
3. diatomite is used the diatomite of purification the complementary advantage of storeroom to be made full use of, for carrier with four by the present invention
Titanium chloride is presoma, and using hydrochloric acid, ammonium sulfate, sal volatile as adjuvant, nano-silica is synthesized using hydrolysis methods
Change titanium/composite diatomite particle, compound particle is filtered, washs, is dry, after calcining, obtained titania support diatomite
Catalysis material, without formaldehyde and while VOCs, heavy metal, nano titanium dioxide/diatomite composite material have concurrently absorption and
Two kinds of functions of photocatalysis, make up previous product in use there are the defects of and deficiency, thoroughly solve in the prior art
Cannot thoroughly remove harmful substance, it is not ideal enough to the advanced treating of exhaust gas and waste water the problems such as so that in natural light and visible
The photocatalytic activity of light is high, and effect is persistently notable.
4. the environment-protection nano diatom mud dry powder of the present invention when doing matrix decoration protection applied to building field, directly uses water
Dilution adjusts viscosity and can be used, and the splendid chemical property in coated face, physical property can be assigned, with no xanthochromia, biology
Compatibility is splendid, low taste, Diamond Search, zero APEO, water resistance is splendid, toning property is good, while do not need to the features such as coalescents,
With good flexibility and application property, collaboration other components can assign paint film property, outstanding scrubbing resistance, resistance to ag(e)ing,
The features such as temperature difference resistance, salt fog saline-alkali tolerant, the stain resistant ability of film is effectively improved, nano titanium dioxide/diatomite is compound
Material can also reduce the residual stress of coating in the drying process, so as to enhance the adhesive force of coating, ensure the performance of coating
Persistence, moreover, using the extensibility of elastic emulsion, to be satisfied with various roller coating, showering, spraying, blade coating, brushing, dip-coating
Construction, in the variously-shaped odd-shaped substrates workpiece execution conditions to differ.
5. the environment-protection nano diatom mud dry powder of the present invention, fungicidal properties is splendid, is caught especially with diatomaceous efficient absorption
The high efficiency photocatalysis degradation function of function and nano-titanium dioxide is caught, can prevent from being coated the generation of matrix mould for a long time.Bacterium
It is mostly positively charged, it can effectively adsorb, be coated on the free bacterium with positive charge, it is made to lose hyperplasia and the item of breeding
Part, biology can not gather, broad-spectrum long-acting, under conditions of moist darkness, building substrate be protected to reach reason for a long time not by mould erosion
The anti-mold effect thought, antibacterial and antimildew function are even more to have a qualitative leap, and it is safe, effect is lasting, be it is a kind of have it is long-acting
The antibacterial and mouldproof material of property and weatherability.
In conclusion environment-protection nano diatom mud dry powder can be realized compared with the building coating of common diatom ooze type
Building substrate surface forms effective protection, while dicoration is strong, low energy consumption, has green ecological, antibacterial and mouldproof, environment friend
Well, the function especially with forest function, the quickly and effectively harmful substances such as formaldehyde, VOCs in decomposition air.It uses letter
It is single, easy for construction, VOC free s after application, while free from extraneous odour, the comprehensive catch microorganism of active ingredient, and can effectively reduce
Air pollution caused by exhaust gas, antibacterial bacteriostatic can effectively remove the pernicious gases such as indoor formaldehyde, toluene, to development environmental protection industry,
Energy saving, environmental protection, the low emission for realizing pollutant promote the recycling economy requirements such as harmony between man and nature development, have
Significance.
Specific embodiment
The present invention is described in further detail with reference to specific embodiment.It should be appreciated that following schematic implementation
Example and explanation are only used for explaining the present invention, not as a limitation of the invention, moreover, in the absence of conflict, the present invention
In embodiment and embodiment in feature can be combined with each other.
The present invention provides a kind of environment-protection nano diatom mud dry powder, is made of component A well prepared in advance and component B mixings,
Mass percents of the component A and component B in environment-protection nano diatom mud dry powder is respectively 20% ~ 30% and 70% ~ 80%,
In,
The raw material of the component A is included with mass parts：65 ~ 80 parts of diatomite, 10 ~ 15 parts of titanium tetrachloride solution, zinc oxide 5 ~ 15
Part, 1 ~ 3 part of hydrochloric acid, 1 ~ 3 part of sal volatile, 1 ~ 3 part of ammonium sulfate and enough water；
The raw material of the component B includes by percentage to the quality：Latex powder 25% ~ 30%, titanium dioxide 15% ~ 20%, calcium carbonate 15% ~
20%th, silica flour 5% ~ 10%, kaolin 5% ~ 10% and white cement 5% ~ 10%.
Environment-protection nano diatom mud dry powder provided in an embodiment of the present invention, can compared with the building coating of common diatom ooze type
Effective protection is formed on building substrate surface to realize, it is decorative strong, while low energy consumption, there is green ecological, antibacterial and mouldproof,
It is environmental-friendly, especially with forest function, quickly and effectively decompose the function of the harmful substances such as formaldehyde, VOCs in air.Its
Using simple, easy for construction, VOC free s after application, while free from extraneous odour, the comprehensive catch microorganism of active ingredient, and can have
Effect reduces air pollution caused by exhaust gas, and antibacterial bacteriostatic can effectively remove the pernicious gases such as indoor formaldehyde, toluene, to developing ring
Guarantor's industry, energy saving, environmental protection, the low emission for realizing pollutant promote the circular economies such as harmony between man and nature development will
It asks, is of great significance.
In one alternate embodiment, the diatomite for dioxide-containing silica >=92%, grain size≤35 ~ 50um, specific surface
Product is 180 ~ 220 m2/ g, diatom original soil, washing diatomite or the calcined diatomite that pore volume is 0.3 ~ 0.4ml/g, described two
Silica content refers to noncrystalline SiO2Content.The absorption property of diatom ooze is realized by its porous structure, using this
The diatomite that embodiment provides has big specific surface area, abundant functional group, developed pore structure with more excellent absorption
Purification function.
In another of the invention alternative embodiment, the titanium tetrachloride solution be mass percent concentration be 13.8% ~
16.7% titanium tetrachloride solution.The present embodiment uses composite material technology of preparing, and using titanium tetrachloride as presoma, collaboration is poroid
Diatomite prepares the titanium dioxide of synthesis（Photocatalyst）Composite diatomite particulate material is loaded, the two is allowed to organically combine,
Obtained complex particle material stable chemical performance solves high dispersive fine-powder titanium dioxide prepared by previous chemical method
Catalysis material bad dispersibility is difficult to recycle, the problem of adsorption capacity is not strong, can maximumlly excite its absorption and photocatalysis this
Two kinds of functions are significantly improved in the light-catalysed activity of natural light and visible ray, can be quickly and effectively by formaldehyde, toluene, diformazan
The harmful organic substances such as the harmful organic substances such as benzene, ammonia, radon, TVOC, pollutant, foul smell, bacterium, microorganism are completely decomposed into harmless
CO2And H2O, and with characteristics such as removal pollutant, hydrophily, self-cleanings, ideal to the advanced treating of exhaust gas, performance is held
Long, secondary pollution is not generated.
In another of the invention alternative embodiment, the zinc oxide be 70 ~ 90nm of grain size, purity for 93% ~ 96% nothing
Lead nano zine oxide.It is measured when it is implemented, EDTA standard titration solution titrations can be used in the purity.Nano zine oxide by
There is oxidation-reduction quality in zinc ion, be a kind of inorganic antiseptic in itself, the embodiment of the present invention uses composite material technology of preparing,
Nano zine oxide cooperates with other components, can realize the superposition of bioactivity, VOC free, inanimate object characteristic of concentration can inhibit mould simultaneously
The microorganisms such as bacterium, bacterium, fungi and mould, in the environment can natural degradation be innocuous substance, do not lead to water source and environmental pollution.
Nano zine oxide and most of anion, cation and nonionic surfactant etc. reach dissolving each other for physics, thin with mould
When bacterium contacts, zinc ion slow release, permeability is strong and can be reacted with carboxyl, the hydroxyl of organic matter etc., destroys its structure, entrance
The enzyme of electron transport system is destroyed after cell and is reacted with-SH bases, achievees the purpose that sterilization, long-time service is not developed immunity to drugs,
Biological clay, which is removed, remarkable result, has efficiently remarkable antimycotic antiseptic effect, effectively divides in the case where concentration is very low, still
The growth of bacterium, fungi and algae can be so effectively inhibited, this is that other pharmaceutically dosage form fungus and mildew resistance materials are incomparable.
In another alternative embodiment of the invention, the hydrochloric acid is the hydrochloric acid that mass percent concentration is 36% ~ 38%
Solution.Hydrochloric acid occurs in preparation process other than neutralization reaction, redox performance, mainly also uses hydrochloric acid and is easily decomposed into
The substance characteristics of gas, the main material of the embodiment of the present invention is porous diatomite, and the addition of hydrochloric acid can make porous diatomite
Increase pore space structure in material, photocatalyst load factor significantly uniformly improves.
In another alternative embodiment of the invention, the sal volatile is that mass percent concentration is 13% ~ 16.7%
Sal volatile；The ammonium sulfate is the ammonium sulfate that mass percent concentration is 13.8% ~ 16.7%.Ammonium carbonate is molten
Liquid, which is heated to decompose, releases carbon dioxide and ammonia, and ammonium sulfate, which is heated also decompose, releases nitrogen, sulfur dioxide etc.
Gas, gas is overflowed from porous diatomite material can make porous diatomite material generate pore space structure, and photocatalyst load factor is bright
It is aobvious uniformly to improve.
In another alternative embodiment of the invention, the latex powder is ethylene-vinyl acetate copolymer, acetic acid second
At least one of alkene-versatic acid ethylene copolymer, acrylic copolymer.The titanium dioxide is anatase titanium dioxide, plate titanium
At least one of type titanium dioxide or rutile titanium dioxide.The calcium carbonate for powdered whiting, gel calcium carbonate or
At least one of crystal calcium carbonate.The silica flour is in the diamond dust, quartz sand or schmigel of 80 ~ 120 microns of grain size
It is at least one.The kaolin is calcined kaolin；The white cement is white portland cement, and white especially may be used
Silicate high-purity cement.Latex powder, titanium dioxide, calcium carbonate, silica flour and the kaolin used in the embodiment of the present invention is
As filler, and the various filler ingredients that above-described embodiment is used to provide, coating thickness can be effectively increased, improves film mechanical property
It can, moreover it is possible to which the rheological property of adjusting coating, such as thickening, anti-precipitation improve the mechanical strength of paint film, such as improve wearability and durable
Property, the optical property of adjusting coating changes the appearance of film, such as delustring, helps out to the chemical property of film, such as increases
Strong antirust, moisture-resistant, anti-flammability etc..
On the other hand, the embodiment of the present invention also provides a kind of environment-protection nano diatom ooze process for preparation of dry powder, includes following step
Suddenly：
Step S1 prepares component A and component B respectively；And
Environment-protection nano diatom mud dry powder, component A and component is made by component A well prepared in advance and component B mixings in step S2
The mass percent that B accounts for environment-protection nano diatom mud dry powder is respectively 20% ~ 30% and 70% ~ 80%.
Wherein, the preparation process of the component A is as follows：
According to the mass parts content of formula, sequentially add whole diatomite, account for the hydrochloric acid of the total dosage 70% ~ 75% of hydrochloric acid and suitable
After water mixing, it is 2 ~ 3 to adjust pH value of solution, stirs 10 ~ 15min with the rotating speed of 500 ~ 800rpm, diatomite suspension is made；
When diatomite suspension temperature is down to 0 ~ 5 DEG C, titanium tetrachloride solution and zinc oxide are sequentially added by formula dosage, simultaneously
10 ~ 15min is stirred with the rotating speed of 200 ~ 300 rpm, then stops stirring and precipitation reaction is hydrolyzed；
Remaining hydrochloric acid and sal volatile are added drop-wise in the diatomite suspension by formula dosage again, with 20 ~ 25min/L
Speed be added dropwise, after being added dropwise with the rotating speed of 200 ~ 300rpm stir 5 ~ 10min, then by temperature rise to 30 ~ 35 DEG C, into
Row insulated and stirred reacts 50 ~ 60min；
It is dripped by formula dosage and ammonium sulfate is added in into the diatomite suspension, rate of addition is 6 ~ 7L/min, adjusts pH
To stopping adding in when 4 ~ 6, insulated and stirred reacts 50 ~ 60min, stops reaction, and it is compound to obtain synthesis nano titanium dioxide/diatomite
Particle；The slurry of the compound particle of above-mentioned synthesis nano titanium dioxide/diatomite is filtered in washing, until inspection do not measure chlorine from
Son after sulfate ion, then is dried at a temperature of 300 ~ 350 DEG C, when to measure moisture content be 2% ~ 3%, with calcination temperature
750 ~ 900 DEG C are calcined 6 ~ 8 hours, and then cooling down to room temperature is to get the component A.
Preparation method provided in an embodiment of the present invention is simple for process, and low energy consumption, and easy to implement, so as to efficient, section
Preparing to energy can be while coated substrate surface forms the performances such as effective protection, antibacterial and mouldproof, moreover it is possible to which effectively purification is empty
The environment-protection nano diatom mud dry powder of makings amount.
In the specific implementation, dispersion mixing kettle may be used to complete each ingredient is dispersed with stirring uniform process, specifically
It can be the high/low temperature one reaction kettle with condenser, Dropping feeder, blender and thermometer.And filter press may be used
Carry out the operation of washing filtering, it is preferred to use belt filter press.Calcining kiln, preferably latus rectum rotary kiln can be used in calcining.
When it is implemented, the component A, which can refer to, uses following formula, the dosage in table is mass parts：
It should be noted that water can be added in when preparing component A, but water is only as the solvent for preparing diatomite suspending agent
And the cleaning solution in subsequent laundering process, specific dosage with can guarantee diatomite can all be dispersed in water to be formed it is outstanding
It is standard to float agent and chlorion and sulfate ion can be washed out in washing, and in subsequent drying and calcination process
Water meeting evaporating completely is fallen.When it is implemented, prepare component A according to each of more than component A（Nano diatomite）It is spare.
In a specific embodiment of the invention, the preparation process of the component B is as follows：According to the mass percent of formula
Content successively adds in latex powder, titanium dioxide, calcium carbonate, silica flour, kaolin, white cement in dry powder blender, 300 ~
20 ~ 30min is dispersed with stirring under the rotating speed of 500rpm to get to B component.Since component B is filler, preparation process is also relatively simple
It is single, each ingredient need to only be stirred and evenly mixed, it is easy to operate.
When it is implemented, the component B, which can refer to, uses following formula, percentage is mass percent in table：
When it is implemented, according to above-mentioned formula and preparation method, it is spare that component B is prepared in advance.
In another alternative embodiment of the invention, when the component A and component B are mixed, component A is gradually added into component
It in B, adds while stirring, until component A and component B are uniformly mixed, then, to get to environmental protection after being filtered with 40 ~ 80 mesh filter screens
Nanometer diatom ooze dry powder.
Environment-protection nano diatom mud dry powder provided in an embodiment of the present invention is environmentally protective, can be widely applied to indoor decoration dress
Pool, and the organic pollutions content such as VOCs, formaldehyde, benzene class is almost nil, far below standard GB/T/T35602-2017《Green
Product evaluation coating》It is required that volatile organic compounds (VOC) content≤50mg/Kg, requirement content of formaldehyde≤20
Mg/kg, the benzene of requirement, toluene, ethylbenzene and dimethylbenzene content summation≤50 mg/kg；Far below state of the People's Republic of China (PRC)
Family environment protectment protection HJ2537-2014《Environmental labelling product technology requires water paint》Limits of harmful substances requirement is less than
GB 18582-2008《Harmful substance in indoor decorating and refurnishing materials interior wall coating》Restriction, meet national green construction material
It is required that；Meet GB/T50378-2014《Green building assessment standard》、GB50300-2013《Building engineering construction inspection of quality is united
One standard》、GB50204-2015《Concrete structure engineering construction quality accident specification》、DB11/T 1315-2015《Green is built
Build acceptance of work specification》Etc. national standards.
Environment-protection nano diatom mud dry powder air purification rate provided in an embodiment of the present invention is high, under product standard state, energy
It is extremely strong efficiently and effectively to purify indoor air quality, as a result of the nano-titanium dioxide with high efficiency photocatalysis degradation function
（Photocatalyst）, prepared with having both the mushy diatomite of function of efficient absorption capture pernicious gas and substance composite material
Technology so that coating not only has the function of that absorption captures the organic pollutions such as formaldehyde in air, benzene class, but also due in illumination
Can the organic pollutions such as the formaldehyde, benzene class, the ammonia that capture be adsorbed with last decomposition coating surface down so that it no longer floats on sky
In gas, harm no longer is formed to the health of human body, so as to have the function of sustainable elimination indoor organic pollutant and purifying rate
Height, effect is lasting, and purification air performance is substantially better than People's Republic of China (PRC) building material industry standard JC/T 1074-2008《It is indoor
Air-cleaning function coating material purifying property》Numerical definiteness.
Environment-protection nano diatom mud dry powder barrier propterty provided in an embodiment of the present invention is outstanding, under product standard state, adds
Be added in architectural decorative and fitting materials, can effectively realize to be coated material formed have closure strong, anticorrosion, it is wear-resisting scrape,
The performances such as acid and alkali-resistance, shock resistance, the effective protection of fire-retardant fireproof, which can win, one raises, and properties are superior to JC/2177-2013
《Diatom ooze decorative wall material》、GB/T 1728-1979(1989)《Paint film, putty membrane drying time measuring method》、GB/T 9265《It builds
Build the measure of paint coatings alkali resistance》、GB/T 9779-2005《Multi wall architectural coatings》、GB 18582《Indoor decorating material
Expect limits of harmful substances in interior wall coating》、JC/T 2002-2009《Construction material moisture absorption and desorption property test method》、JC/T
2082-2011《Humidity conditioning function interior material for building》Wait the numerical definiteness of normative references.
The antibacterial anticorrosive mildewproof performance of environment-protection nano diatom mud dry powder provided in an embodiment of the present invention protrudes, to mould, fungi,
Heterotroph, algae etc. have inhibition and killing effect well.Under product standard state, meet SN/T3122-2012《It is inorganic
Anti-biotic material Anti-microbial Performance Tests method》、GBT 30706-2014《Photocatalysis antibacterial material and product antibacterial under radiation of visible light
Performance test methods and evaluation》、JIS Z 2911-1992《Fungus resistance test method》、JIS Z 2801-2000《Antibiotic plastic
Anti-microbial Performance Tests method and antibacterial effect》、ASTM G21-96（2002）《Synthetic polymeric material is mould proof（Resistance to fungi）Performance is surveyed
Test-object is accurate》、SN/T 2399-2010《Antibacterial metallic materials evaluation method》Etc. domestic and international antibacterial standard.
Environment-protection nano diatom mud dry powder provided in an embodiment of the present invention is easy to use, and application property is splendid.The environment-protection nano
Diatom mud dry powder is dry powder-shaped, when use, viscosity needed for water use regulation can directly carry out various roller coating, showering, spraying,
Blade coating is brushed, the construction of dip-coating, is met in the variously-shaped odd-shaped substrates workpiece execution conditions to differ, and constructed
Without waste water, exhaust gas, waste residue generation, safety and environmental protection in journey.
Environment-protection nano diatom mud dry powder provided in an embodiment of the present invention has wide range of applications, and is especially dusty material,
It can directly add extensively applied to numerous areas, such as the processing of coating and printing ink, water system, daily chemical products, integral density plate, plastics
In the composite materials such as hardware, timber paper, and without the environmentally harmful volatile matter such as formaldehyde and VOCs, heavy metal, and
Photocatalysis performance, can effectively degrade the harmful substances such as indoor formaldehyde, VOCs, ideal to the advanced treating effect of exhaust gas.It builds
Material matrix, concrete product will be corroded by chemical substance in environment and microorganism, since this product is with anion release
Exclusive effect, anion have degradation smog（PM2.5）, the performance mutually assembled of microorganism, bacterium, can significantly extend base
The service life of material.
Environment-protection nano diatom mud dry powder provided in an embodiment of the present invention using water as matrix, enrich by water resource, preparation process letter
Single, low energy consumption, dry powder-shaped finished product packing, storage and convenient transportation, so as to reduce industrialization cost, conducive to industrialized production.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understand, can carry out a variety of equivalent changes to these embodiments without departing from the principles and spirit of the present invention
Change, change, replacing and modification, the scope of the present invention are limited by appended claims and its equivalency range.
Claims (10)
1. a kind of environment-protection nano diatom mud dry powder, which is characterized in that the environment-protection nano diatom mud dry powder is by well prepared in advance
Component A be made with component B mixings, the component A and component B in environment-protection nano diatom mud dry powder mass percent difference
For 20% ~ 30% and 70% ~ 80%, wherein,
The raw material of the component A is included with mass parts：65 ~ 80 parts of diatomite, 10 ~ 15 parts of titanium tetrachloride solution, zinc oxide 5 ~ 15
Part, 1 ~ 3 part of hydrochloric acid, 1 ~ 3 part of sal volatile, 1 ~ 3 part of ammonium sulfate and enough water；
The raw material of the component B includes by percentage to the quality：Latex powder 30% ~ 35%, titanium dioxide 15% ~ 20%, calcium carbonate 15% ~
20%th, silica flour 10% ~ 15%, kaolin 10% ~ 15% and white cement 5% ~ 10%.
2. environment-protection nano diatom mud dry powder as described in claim 1, which is characterized in that the diatomite contains for silica
Amount >=92%, grain size≤35 ~ 50um, specific surface area are 180 ~ 220 m2/ g, pore volume are diatom original soil, the water of 0.3 ~ 0.4ml/g
Diatomite or calcined diatomite are washed, the dioxide-containing silica refers to noncrystalline SiO2Content.
3. environment-protection nano diatom mud dry powder as described in claim 1, which is characterized in that the titanium tetrachloride uses quality percentage
Specific concentration is 13.8% ~ 16.7% titanium tetrachloride solution.
4. environment-protection nano diatom mud dry powder as described in claim 1, which is characterized in that the zinc oxide for 70 ~ 90nm of grain size,
Purity is 93% ~ 96% unleaded nano zine oxide.
5. environment-protection nano diatom mud dry powder as described in claim 1, which is characterized in that the hydrochloric acid is mass percent concentration
For 36% ~ 38% hydrochloric acid solution.
6. environment-protection nano diatom mud dry powder as described in claim 1, which is characterized in that the sal volatile is quality percentage
Specific concentration is 13% ~ 16.7% sal volatile；The ammonium sulfate is the sulphur that mass percent concentration is 13.8% ~ 16.7%
Acid ammonium solution.
7. environment-protection nano diatom mud dry powder as described in claim 1, which is characterized in that the latex powder is ethyl vinyl acetate second
At least one of enoate copolymer, vinyl acetate-versatic acid ethylene copolymer, acrylic copolymer；The titanium dioxide is sharp
At least one of titanium-type titanium dioxide, plate titanium-type titanium dioxide or rutile titanium dioxide；The calcium carbonate is heavy carbon
At least one of sour calcium, gel calcium carbonate or crystal calcium carbonate；The silica flour is diamond dust, the stone of 80 ~ 120 microns of grain size
At least one of sand or schmigel；The kaolin is calcined kaolin；The white cement is white portland cement.
8. a kind of environment-protection nano diatom ooze process for preparation of dry powder, which is characterized in that comprise the steps of：
Component A and component B are prepared respectively；And
Environment-protection nano diatom mud dry powder is made by component A well prepared in advance and component B mixings, component A and component B account for environmental protection
The mass percent of nanometer diatom ooze dry powder is respectively 20% ~ 30% and 70% ~ 80%；
Wherein, the preparation process of the component A is as follows：
According to the mass parts content of formula, sequentially add whole diatomite, account for the hydrochloric acid of the total dosage 70% ~ 75% of hydrochloric acid and suitable
After water mixing, it is 2 ~ 3 to adjust pH value of solution, stirs 10 ~ 15min with the rotating speed of 500 ~ 800rpm, diatomite suspension is made；
When diatomite suspension temperature is down to 0 ~ 5 DEG C, titanium tetrachloride solution and zinc oxide are sequentially added by formula dosage, simultaneously
10 ~ 15min is stirred with the rotating speed of 200 ~ 300 rpm, then stops stirring and precipitation reaction is hydrolyzed；
Remaining hydrochloric acid and sal volatile are added drop-wise in the diatomite suspension by formula dosage again, with 20 ~ 25min/L
Speed be added dropwise, after being added dropwise with the rotating speed of 200 ~ 300rpm stir 5 ~ 10min, then by temperature rise to 30 ~ 35 DEG C, into
Row insulated and stirred reacts 50 ~ 60min；
It is dripped by formula dosage and ammonium sulfate is added in into the diatomite suspension, rate of addition is 6 ~ 7L/min, adjusts pH
To stopping adding in when 4 ~ 6, insulated and stirred reacts 50 ~ 60min, stops reaction, and it is compound to obtain synthesis nano titanium dioxide/diatomite
Particle；The slurry of the compound particle of above-mentioned synthesis nano titanium dioxide/diatomite is filtered in washing, until inspection do not measure chlorine from
Son after sulfate ion, then is dried at a temperature of 300 ~ 350 DEG C, when to measure moisture content be 2% ~ 3%, with calcination temperature
750 ~ 900 DEG C are calcined 6 ~ 8 hours, and then cooling down to room temperature is to get the component A.
9. the preparation method of environment-protection nano diatom mud dry powder as claimed in claim 8, which is characterized in that the system of the component B
Standby process is as follows：According to formula mass percentage content successively by latex powder, titanium dioxide, calcium carbonate, silica flour, kaolin,
White cement is added in dry powder blender, and 20 ~ 30min is dispersed with stirring under the rotating speed of 300 ~ 500 rpm to get to B component.
10. the preparation method of environment-protection nano diatom mud dry powder as claimed in claim 8, which is characterized in that the component A and group
During part B mixing, component A is gradually added into component B, is added while stirring, until component A and component B are uniformly mixed, then,
To get to environment-protection nano diatom mud dry powder after being filtered with 40 ~ 80 mesh filter screens.
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| CN109161307A (en) * | 2018-09-11 | 2019-01-08 | 安徽晨讯智能科技有限公司 | A kind of intelligent chip heat radiation coating |
| CN109679385A (en) * | 2019-01-02 | 2019-04-26 | 蓝天豚绿色建筑新材料(湘阴)有限公司 | A kind of preparation method of functionality dry powder diatom wall material auxiliary material |
| CN115073037A (en) * | 2022-06-22 | 2022-09-20 | 广东省科学院资源利用与稀土开发研究所 | Preparation method of egg shell powder for building material |
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| CN101804338A (en) * | 2009-05-19 | 2010-08-18 | 王秀宝 | Process for producing nano titanium dioxide/diatomite composite photocatalytic material |
| CN104724995A (en) * | 2015-03-20 | 2015-06-24 | 佛山市南海万磊建筑涂料有限公司 | Weakly alkaline inorganic multifunctional diatom ooze dry powder paint and preparation method thereof |
| CN105174859A (en) * | 2015-08-18 | 2015-12-23 | 王秀宝 | Diatomite micropowder-based interior wall paint capable of removing formaldehyde and peculiar smell in indoor air and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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