CN110526653A - A kind of diatom coating and preparation method thereof - Google Patents
A kind of diatom coating and preparation method thereof Download PDFInfo
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- CN110526653A CN110526653A CN201910931549.5A CN201910931549A CN110526653A CN 110526653 A CN110526653 A CN 110526653A CN 201910931549 A CN201910931549 A CN 201910931549A CN 110526653 A CN110526653 A CN 110526653A
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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
- C04B28/021—Ash cements, e.g. fly ash cements ; Cements based on incineration residues, e.g. alkali-activated slags from waste incineration ; Kiln dust 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
- 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
- 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
- C04B28/08—Slag 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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- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
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- Paints Or Removers (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention belongs to paint fields more particularly to a kind of diatom coating and preparation method thereof.Diatom coating provided by the invention based on parts by weight, including following components: 100 parts of microcellular structure diatomite of recombination；3~6 parts of cementitious material；5~8 parts of modenite；3~5 parts of nano-titanium dioxide；3~5 parts of tourmaline；15~20 parts of calcium carbonate；2~5 parts of wood fibre；Acquisition is prepared according to the following steps in the recombination microcellular structure diatomite: crushing to diatomite, obtains diatomite in powder particle；Then the diatomite in powder particle is handled in high speed powder mixer, obtains recombination microcellular structure diatomite.Diatom coating provided by the invention has stronger absorption property, can solve the problems such as existing diatom coating is low to the noxious substances efficiency such as indoor formaldehyde, purifying property is weak.
Description
Technical field
The invention belongs to paint fields more particularly to a kind of diatom coating and preparation method thereof.
Background technique
Diatomite enrichment natural micropore structure, all kinds of harmful substances such as adsorbable purification formaldehyde in air, benzene, TVOC, together
When with damping and mould proof performance, the air quality of living environment can be effectively improved.Diatom coating is original with diatomite
Material, detergent power depend on the absorption property and degradation property of coating, and the two is indispensable.Diatomite material is with macropore
Main (50nm or more) is secondly mesoporous (2-50nm), cause formaldehyde of a part of molecular diameter far below 2nm, benzene, dimethylbenzene and
The unwanted particles such as various volatile organic matters (VOC) are comfortable free in the duct of diatomite " spaciousness ", are unable to reach absorption
Purpose, directly affects the efficiency of degradation, to drag down the decontamination index of diatom ooze coating.
Diatom coating on current market has mature preparation method in terms of enhancing degradation function, and effectively promotes suction
The methods and applications of attached ability are then more rare, and " adsorption capacity is weak ", which is that current diatom coating environment-friendly function is generally existing, asks
Topic.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of diatom coating and preparation method thereof, silicon provided by the invention
Algicide coatings have stronger absorption property, can solve existing diatom coating it is low to the noxious substances efficiency such as indoor formaldehyde,
The problems such as purifying property is weak.
The present invention provides a kind of diatom coating, based on parts by weight, including following components:
Acquisition is prepared according to the following steps in the recombination microcellular structure diatomite:
Diatomite is crushed, diatomite in powder particle is obtained；Then the diatomite in powder particle is mixed in high speed powder
It is handled in conjunction machine, obtains recombination microcellular structure diatomite；
The running speed of the high speed powder mixer is 4200~4600r/min；The temperature of the processing is 10~30
℃；The humidity of the processing is 40~70%；The time of the processing is 5~20min.
Preferably, the particle diameter distribution of the diatomite in powder particle are as follows: 2 μm of partial size < of 30~40wt% of accounting, partial size 2
25~35wt% of accounting of 50 μm of~50 μm of 25~35wt% of accounting, partial size >.
Preferably, the crushing carries out in airslide disintegrating mill；
The gas flow temperature of the airslide disintegrating mill is 60~70 DEG C；The operating pressure of the airslide disintegrating mill is 1~2MPa；
The vibration frequency of the airslide disintegrating mill is 10~30Hz.
Preferably, the cementitious material includes ordinary portland cement, portland slag cement, fly ash silicate water
One of mud, high strength portland cement and Portland pozzolana cement are a variety of.
Preferably, the average grain diameter of the nano-titanium dioxide is 10~30nm.
Preferably, the mohs hardness of the tourmaline is 7~7.5, specific gravity between 2.9~3.2, index of refraction is 1.624~
1.644。
Preferably, the partial size of the calcium carbonate is 1~100nm.
Preferably, the fibre length of the wood fibre is 0.5~3mm, and bulk density is 15~25g/cm3。
The present invention provides a kind of preparation methods of diatom coating described in above-mentioned technical proposal, comprising the following steps:
It will recombination microcellular structure diatomite, cementitious material, modenite, nano-titanium dioxide, tourmaline, calcium carbonate and wood
Matter fiber is stirred mixing, obtains diatom coating.
Preferably, the revolving speed of the stirring is 400~600r/min；The time of the stirring is 30~60min.
Compared with prior art, the present invention provides a kind of diatom coating and preparation method thereof.Diatom provided by the invention
Coating based on parts by weight, including following components: 100 parts of microcellular structure diatomite of recombination；3~6 parts of cementitious material；Modenite
5~8 parts；3~5 parts of nano-titanium dioxide；3~5 parts of tourmaline；15~20 parts of calcium carbonate；2~5 parts of wood fibre；The recombination
Acquisition is prepared according to the following steps in microcellular structure diatomite: crushing to diatomite, obtains diatomite in powder particle；Then by institute
It states diatomite in powder particle to be handled in high speed powder mixer, obtains recombination microcellular structure diatomite；The high speed powder
The running speed of mixing machine is 4200~4600r/min；The temperature of the processing is 10~30 DEG C；The humidity of the processing is 40
~70%；The time of the processing is 5~20min.The present invention by being crushed to diatomite, make rotary strainer algae in diatomite,
The microstructure for being preced with disk algae occurs rupture, displacement, disintegrates, and forms various channel morphologies and hole track forces not of uniform size
It is very little；Mixed at high speed is carried out to smashed diatomite under particular circumstances again later, makes different channel morphologies and pore size
Diatomite in powder particle be mutually embedded in, recombination form new duct spatial shape and aperture size, to make diatomite by " original shape
The pore character of state " based on macropore, containing a small amount of mesoporous, it is relatively uniform to be reassembled as macropore, mesoporous and micropore content distribution,
And the harmful substances such as formaldehyde, benzene, TVOC in air can be attracted in the duct to match with its own particle size, it is harmful
Substance once enters duct and is just embedded, and can not flow and discharge, and is obviously improved kieselguhr adsorption ability to reach
Purpose.Meanwhile the present invention be also added in diatom coating a certain proportion of cementitious material for solidify recombination microcellular structure silicon
The cellular structure of diatomaceous earth makes its cellular structure be able to maintain stabilization.Moreover, the present invention also by diatom coating other are auxiliary
Material is in optimized selection, and further improves the adsorption capacity of the harmful substances such as its PARA FORMALDEHYDE PRILLS(91,95), and then makes silicon provided by the invention
Algicide coatings show extremely excellent absorption property.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is diatomite metamorphosis schematic diagram provided in an embodiment of the present invention.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of diatom coating, based on parts by weight, including following components:
Acquisition is prepared according to the following steps in the recombination microcellular structure diatomite:
Diatomite is crushed, diatomite in powder particle is obtained；Then the diatomite in powder particle is mixed in high speed powder
It is handled in conjunction machine, obtains recombination microcellular structure diatomite；
The running speed of the high speed powder mixer is 4200~4600r/min；The temperature of the processing is 10~30
℃；The humidity of the processing is 40~70%；The time of the processing is 5~20min.
Diatom coating provided by the invention includes recombination microcellular structure diatomite, cementitious material, modenite, nano-silica
Change titanium, tourmaline, calcium carbonate and wood fibre.Wherein, acquisition is prepared according to the following steps in the recombination microcellular structure diatomite:
I) diatomite is crushed, obtains diatomite in powder particle；
Ii the diatomite in powder particle is handled in high speed powder mixer), obtains recombination microcellular structure diatom
Soil.
In the preparation step of above-mentioned recombination microcellular structure diatomite provided by the invention, in step i), the diatomite
It preferably is selected from Changbai area diatomite；The crushing carries out preferably in airslide disintegrating mill；The air-flow of the airslide disintegrating mill
Temperature is preferably 60~70 DEG C, concretely 60 DEG C, 61 DEG C, 62 DEG C, 63 DEG C, 64 DEG C, 65 DEG C, 66 DEG C, 67 DEG C, 68 DEG C, 69 DEG C
Or 70 DEG C；The operating pressure of the airslide disintegrating mill is preferably 1~2MPa, concretely 1MPa, 1.1MPa, 1.2MPa,
1.3MPa, 1.4MPa, 1.5MPa, 1.6MPa, 1.7MPa, 1.8MPa, 1.9MPa or 2MPa；The vibration frequency of the airslide disintegrating mill
Rate is preferably 10~30Hz, concretely 10Hz, 15Hz, 20Hz, 25Hz or 30Hz；The particle diameter distribution of the diatomite in powder particle
Are as follows: the accounting that 2 μm of partial size < is preferably 30~40wt%, more preferably 36~37wt%, most preferably 36.23wt%；Partial size
Accounting for 2~50 μm is preferably 25~35wt%, more preferably 31~33wt%, most preferably 32~32.01wt%；Partial size
The accounting that 50 μm of > is preferably 25~35wt%, more preferably 31~32wt%, most preferably 31.76wt%.
In the preparation step of above-mentioned recombination microcellular structure diatomite provided by the invention, step ii) in, the high speed powder
The running speed of body mixing machine is preferably 4200~4600r/min, concretely 4200r/min, 4250r/min, 4300r/
Min, 4350r/min, 4400r/min, 4450r/min, 4500r/min, 4550r/min or 4600r/min；The temperature of the processing
Preferably 10~30 DEG C of degree, concretely 10 DEG C, 15 DEG C, 20 DEG C, 25 DEG C or 30 DEG C；The humidity of the processing is preferably 40~
70%, concretely 40%, 45%, 50%, 55%, 60%, 65% or 70%；The time of the processing is preferably 5~
20min, concretely 5min, 10min, 15min or 20min.
In the present invention, the cementitious material is preferably inorganic coagulation material, including but not limited to ordinary portland cement,
One of portland slag cement, Portland fly ash cement, high strength portland cement and Portland pozzolana cement or
It is a variety of.In the present invention, described by the recombination microcellular structure diatomite in terms of the content in diatom coating is 100 parts by weight
Content of the cementitious material in diatom coating be 3~6 parts by weight, concretely 3 parts by weight, 3.1 parts by weight, 3.2 parts by weight,
3.3 parts by weight, 3.4 parts by weight, 3.5 parts by weight, 3.6 parts by weight, 3.7 parts by weight, 3.8 parts by weight, 3.9 parts by weight, 4 weight
Part, 4.1 parts by weight, 4.2 parts by weight, 4.3 parts by weight, 4.4 parts by weight, 4.5 parts by weight, 4.6 parts by weight, 4.7 parts by weight, 4.8
Parts by weight, 4.9 parts by weight, 5 parts by weight, 5.1 parts by weight, 5.2 parts by weight, 5.3 parts by weight, 5.4 parts by weight, 5.5 parts by weight,
5.6 parts by weight, 5.7 parts by weight, 5.8 parts by weight, 5.9 parts by weight or 6 parts by weight.
In the present invention, the crystal grain length of the modenite is preferably 100~300nm, concretely 100nm,
150nm, 200nm, 250nm or 300nm.In the present invention, with recombination microcellular structure diatomite the containing in diatom coating
Amount be 100 parts by weight meters, content of the modenite in diatom coating be 5~8 parts by weight, concretely 5 parts by weight,
5.1 parts by weight, 5.2 parts by weight, 5.3 parts by weight, 5.4 parts by weight, 5.5 parts by weight, 5.6 parts by weight, 5.7 parts by weight, 5.8 weight
Part, 5.9 parts by weight, 6 parts by weight, 6.1 parts by weight, 6.2 parts by weight, 6.3 parts by weight, 6.4 parts by weight, 6.5 parts by weight, 6.6 weights
Measure part, 6.7 parts by weight, 6.8 parts by weight, 6.9 parts by weight, 7 parts by weight, 7.1 parts by weight, 7.2 parts by weight, 7.3 parts by weight, 7.4
Parts by weight, 7.5 parts by weight, 7.6 parts by weight, 7.7 parts by weight, 7.8 parts by weight, 7.9 parts by weight or 8 parts by weight.
In the present invention, the average grain diameter of the nano-titanium dioxide is preferably 10~30nm, concretely 10nm,
11nm、12nm、13nm、14nm、15nm、16nm、17nm、18nm、19nm、20nm、21nm、22nm、23nm、24nm、25nm、
26nm, 27nm, 28nm, 29nm or 30nm.In the present invention, with recombination microcellular structure diatomite the containing in diatom coating
Amount is 100 parts by weight meters, and content of the nano-titanium dioxide in diatom coating is 3~5 parts by weight, concretely 3 weight
Part, 3.1 parts by weight, 3.2 parts by weight, 3.3 parts by weight, 3.4 parts by weight, 3.5 parts by weight, 3.6 parts by weight, 3.7 parts by weight, 3.8
Parts by weight, 3.9 parts by weight, 4 parts by weight, 4.1 parts by weight, 4.2 parts by weight, 4.3 parts by weight, 4.4 parts by weight, 4.5 parts by weight,
4.6 parts by weight, 4.7 parts by weight, 4.8 parts by weight, 4.9 parts by weight or 5 parts by weight.
In the present invention, the mohs hardness of the tourmaline is preferably 7~7.5, and concretely 7,7.1,7.2,7.3,7.4
Or 7.5；The specific gravity of the tourmaline is between 2.9~3.2, and concretely 2.9,3,3.1 or 3.2；The index of refraction of the tourmaline
It is 1.624~1.644；The partial size of the tourmaline is preferably 50~150nm, concretely 50nm, 60nm, 70nm, 80nm,
90nm, 100nm, 110nm, 120nm, 130nm, 140nm or 150nm.In the present invention, with the recombination microcellular structure diatomite
Content in diatom coating is 100 parts by weight meters, and content of the tourmaline in diatom coating is 3~5 parts by weight, specifically
It can be 3 parts by weight, 3.1 parts by weight, 3.2 parts by weight, 3.3 parts by weight, 3.4 parts by weight, 3.5 parts by weight, 3.6 parts by weight, 3.7 weights
Measure part, 3.8 parts by weight, 3.9 parts by weight, 4 parts by weight, 4.1 parts by weight, 4.2 parts by weight, 4.3 parts by weight, 4.4 parts by weight, 4.5
Parts by weight, 4.6 parts by weight, 4.7 parts by weight, 4.8 parts by weight, 4.9 parts by weight or 5 parts by weight.
In the present invention, the calcium carbonate is preferably calcium carbonate superfine powder, and the partial size of the calcium carbonate superfine powder is preferably 1~
100nm, concretely 1nm, 10nm, 15nm, 20nm, 25nm, 30nm, 35nm, 40nm, 45nm, 50nm, 55nm, 60nm,
65nm, 70nm, 75nm, 80nm, 85nm, 90nm, 95nm or 100nm.In the present invention, with the recombination microcellular structure diatomite
Content in diatom coating is 100 parts by weight meters, and content of the calcium carbonate in diatom coating is 15~20 parts by weight, tool
Body can for 15 parts by weight, 15.5 parts by weight, 16 parts by weight, 16.5 parts by weight, 17 parts by weight, 17.5 parts by weight, 18 parts by weight,
18.5 parts by weight, 19 parts by weight, 19.5 parts by weight or 20 parts by weight.
In the present invention, the fibre length of the wood fibre is preferably 0.5~3mm, concretely 0.5mm, 1mm,
1.5mm, 2mm, 2.5mm or 3mm；The bulk density of the wood fibre is preferably 15~25g/cm3, concretely 15g/cm3、
15.5g/cm3、16g/cm3、16.5g/cm3、17g/cm3、17.5g/cm3、18g/cm3、18.5g/cm3、19g/cm3、19.5g/
cm3、20g/cm3、20.5g/cm3、21g/cm3、21.5g/cm3、22g/cm3、22.5g/cm3、23g/cm3、23.5g/cm3、24g/
cm3、24.5g/cm3Or 25g/cm3。
The present invention also provides a kind of preparation methods of diatom coating, comprising the following steps:
It will recombination microcellular structure diatomite, cementitious material, modenite, nano-titanium dioxide, tourmaline, calcium carbonate and wood
Matter fiber is stirred mixing, obtains diatom coating.
In preparation method provided by the invention, each component is uniformly mixed in proportion directly, this hair can be obtained
The diatom coating of bright offer.Wherein, the revolving speed of the stirring is preferably 400~600r/min, concretely 400r/min,
410r/min、420r/min、430r/min、440r/min、450r/min、460r/min、470r/min、480r/min、490r/
min、500r/min、510r/min、520r/min、530r/min、540r/min、550r/min、560r/min、570r/min、
580r/min, 590r/min or 600r/min；The time of the stirring is preferably 30~60min, concretely 30min,
35min, 40min, 45min, 50min, 55min or 60min.
The present invention by being crushed to diatomite, make rotary strainer algae in diatomite, be preced with disk algae microstructure occur rupture,
Displacement is disintegrated, and various channel morphologies and pore size not of uniform size are formed；Later again under particular circumstances to powder
Diatomite after broken carries out mixed at high speed, is embedded in the diatomite in powder particle of different channel morphologies and pore size mutually, recombinates
Form new duct spatial shape and aperture size, thus make diatomite by the pore character of " original shape state " based on macropore, contain
Have a small amount of mesoporous, it is relatively uniform to be reassembled as macropore, mesoporous and micropore content distribution, and the formaldehyde, benzene, TVOC etc. in air have
Evil substance can be attracted in the duct to match with its own particle size, and harmful substance once enters duct and is just embedded in it
In, it can not flow and discharge, to achieve the purpose that be obviously improved kieselguhr adsorption ability.Meanwhile the present invention is also in diatom
It is added to a certain proportion of cementitious material in coating for solidifying the cellular structure of recombination microcellular structure diatomite, ties its duct
Structure is able to maintain stabilization.Moreover, the present invention also by the way that other auxiliary materials in diatom coating are in optimized selection, is further promoted
The adsorption capacity of the harmful substances such as its PARA FORMALDEHYDE PRILLS(91,95), and then diatom coating provided by the invention is made to show extremely excellent adsorptivity
Energy.In addition, the present invention, which is mainly based upon diatomite material, carries out secondary operation, preparation process is non-toxic, harmless and pollution-free, production
Simple process, cost is relatively low.
The metamorphosis of diatomite in the present invention is understood to be clearer, is illustrated below with reference to Fig. 1, and Fig. 1 is this
The diatomite metamorphosis schematic diagram that inventive embodiments provide.In Fig. 1, the leftmost side is the original shape state of diatomite；Subsequent diatomite
It is crushed, obtains microstructure and rupture, displacement, disintegration crushed material occurs；Crushed material carries out mixed at high speed later, to realize
The recombination of diatomite duct spatial shape and aperture size；Last diatom coating is being watered in use, diatom after recombination therein
Native crushed material is reunited under the action of cementitious material, and is solidified, and the structure as shown in the rightmost side is obtained.
For the sake of becoming apparent from, it is described in detail below by following embodiment.
In following embodiment and comparative examples of the invention, used raw material information is as follows:
Diatomite: Changbai area diatomite；
Cementitious material: ordinary portland cement (85wt% Portland clinker, 10wt% gypsum, 5wt% lime stone)；
Modenite: 100~300nm of crystal grain length；
Nano-titanium dioxide: average grain diameter 21nm；
Tourmaline: mohs hardness is 7~7.5, specific gravity between 2.9~3.2, index of refraction is 1.624~1.644,50~
150nm；
Calcium carbonate superfine powder: 1~100nm of partial size；
Wood fibre: 0.5~3mm of fibre length, bulk density about 20g/cm3；
The moisture content of above-mentioned each raw material≤4wt%.
Embodiment 1
It takes 100kg diatomite to be put into superfine jet mill, gas flow temperature is cooled to 70 DEG C, adjusts pressure
1.5MPa, vibration frequency 20Hz, the particle diameter distribution of processing are as follows: 2 μm or less: 36.23wt%；2~50 μm: 32.01wt%；50μm
More than: 31.76wt%.In the environment of 25 DEG C of room temperature, humidity 55%, the high speed powder mixer of revolving speed 4200r/min is used
Process 10min.By after processing diatomite, 5kg cementitious material, 6kg modenite, 4kg nano-titanium dioxide, 4kg tourmaline,
18kg calcium carbonate superfine powder, 3kg wood fibre are put into blender, stir 45min with speed of mainshaft 480r/min.It is sufficiently stirred
Even taking-up simultaneously stands finished product after 3h.
Embodiment 2
It takes 150kg diatomite to be put into superfine jet mill, gas flow temperature is cooled to 65 DEG C, adjusts pressure
1.5MPa, vibration frequency 20Hz, the particle diameter distribution of processing are as follows: 2 μm or less: 33.18wt%；2~50 μm: 36.21wt%；50μm
More than: 30.61wt%.In the environment of 20 DEG C of room temperature, humidity 50%, added using revolving speed 4400r/min high speed powder mixer
Work 10min.By after processing diatomite, 7kg cementitious material, 10kg modenite, 6kg nano-titanium dioxide, 6kg tourmaline,
27kg calcium carbonate superfine powder, 5kg wood fibre are put into blender, stir 45min with speed of mainshaft 480r/min.It is sufficiently stirred
Even taking-up simultaneously stands finished product after 3h.
Embodiment 3
It takes 200kg diatomite to be put into superfine jet mill, gas flow temperature is cooled to 60 DEG C, adjusts pressure
1.5MPa, vibration frequency 20Hz, the particle diameter distribution of processing are as follows: 2 μm or less: 31.36wt%；2~50 μm: 38.27wt%；50μm
More than: 30.37wt%.In the environment of 20 DEG C of room temperature, humidity 50%, added using revolving speed 4600r/min high speed powder mixer
Work 10min.By after processing diatomite, 10kg cementitious material, 15kg modenite, 9kg nano-titanium dioxide, 9kg tourmaline,
40kg calcium carbonate superfine powder, 9kg wood fibre are put into blender, stir 45min with speed of mainshaft 480r/min.It is sufficiently stirred
Even taking-up simultaneously stands finished product after 3h.
Comparative example 1
100kg diatomite is taken, 45kg calcium carbonate superfine powder, 12kg modenite, 10kg tourmaline, 9kg nano-silica is added
Change titanium, 8kg wood fibre, 12kg cementitious material, 20min is sufficiently stirred using high-speed mixer, can be prepared by finished product.
Comparative example 2
100kg diatomite is taken, 12kg modenite, 9kg nano-titanium dioxide, 10kg tourmaline, 25kg water is added and carries out
Mixing stirs 10min using dasher, is then placed in 1200 DEG C of temperature of rotary kiln and fires 30min, and cooling is come out of the stove
Afterwards, it is processed into konilite powder using 300 mesh filter screens, adds 12kg cementitious material, uses dasher
20min is stirred, can be prepared by finished product.
Performance test
The purifying formaldehyde efficiency of embodiment and comparative example coating is detected, the results are shown in Table 1:
1 purifying formaldehyde Efficiency testing result of table
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of diatom coating, based on parts by weight, including following components:
Acquisition is prepared according to the following steps in the recombination microcellular structure diatomite:
Diatomite is crushed, diatomite in powder particle is obtained；Then by the diatomite in powder particle in high speed powder mixer
It is inside handled, obtains recombination microcellular structure diatomite；
The running speed of the high speed powder mixer is 4200~4600r/min；The temperature of the processing is 10~30 DEG C；Institute
The humidity for stating processing is 40~70%；The time of the processing is 5~20min.
2. diatom coating according to claim 1, which is characterized in that the particle diameter distribution of the diatomite in powder particle are as follows: grain
2 μm of diameter < of 30~40wt% of accounting, 25~35wt% of accounting that partial size is 2~50 μm, the accounting 25 that 50 μm of partial size >~
35wt%.
3. diatom coating according to claim 1, which is characterized in that the crushing carries out in airslide disintegrating mill；
The gas flow temperature of the airslide disintegrating mill is 60~70 DEG C；The operating pressure of the airslide disintegrating mill is 1~2MPa；It is described
The vibration frequency of airslide disintegrating mill is 10~30Hz.
4. diatom coating according to claim 1, which is characterized in that the cementitious material include ordinary portland cement,
One of portland slag cement, Portland fly ash cement, high strength portland cement and Portland pozzolana cement or
It is a variety of.
5. diatom coating according to claim 1, which is characterized in that the average grain diameter of the nano-titanium dioxide be 10~
30nm。
6. diatom coating according to claim 1, which is characterized in that the mohs hardness of the tourmaline is 7~7.5, than
For dense medium in 2.9~3.2, index of refraction is 1.624~1.644.
7. diatom coating according to claim 1, which is characterized in that the partial size of the calcium carbonate is 1~100nm.
8. diatom coating according to claim 1, which is characterized in that the fibre length of the wood fibre be 0.5~
3mm, bulk density are 15~25g/cm3。
9. a kind of preparation method of any one of claim 1~8 diatom coating, comprising the following steps:
It will recombination microcellular structure diatomite, cementitious material, modenite, nano-titanium dioxide, tourmaline, calcium carbonate and wooden fibre
Dimension is stirred mixing, obtains diatom coating.
10. preparation method according to claim 9, which is characterized in that the revolving speed of the stirring is 400~600r/min；
The time of the stirring is 30~60min.
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| CN114163849A (en) * | 2021-12-08 | 2022-03-11 | 上海净颖环保科技股份有限公司 | Environment-friendly composite coating for buildings and preparation method thereof |
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