CN106277019A - A kind of high transparency barium sulphate nano dispersion and its preparation method and application - Google Patents
A kind of high transparency barium sulphate nano dispersion and its preparation method and application Download PDFInfo
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- CN106277019A CN106277019A CN201510254380.6A CN201510254380A CN106277019A CN 106277019 A CN106277019 A CN 106277019A CN 201510254380 A CN201510254380 A CN 201510254380A CN 106277019 A CN106277019 A CN 106277019A
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Abstract
The invention discloses a kind of high transparency barium sulphate nano dispersion, including dispersant and the modified nano-barium sulfate granule being dispersed therein.The invention also discloses the preparation method of this dispersion.The present invention is by adding modifying agent in the mixture of barium salt organic reaction solvent and sulfate organic reaction solvent, modifying agent is made to be coated on the surface of prepared barium sulfate particle, form surface coating layer, afterwards by modified barium sulfate ultrasonic disperse, by controlling modifying agent, modification temperature, dispersant, obtain the barium sulphate nano dispersion that the transparency is good, stability is high.The invention also discloses the application of this dispersion.
Description
Technical field
The present invention relates to dispersion preparation techniques field.Receive more particularly, to a kind of high transparency barium sulfate
Rice dispersion and its preparation method and application.
Background technology
Barium sulfate is a kind of important Inorganic Chemicals, be widely used in filler, coating, high-grade paint,
The industries such as high-grade ink, plastics, pottery.At present, mostly the production of China's barium sulfate is to use Natrii Sulfas-grey black
Method obtains.The BaSO that this method prepares4Grain growth wayward, product cut size is greatly and not
Uniformly, use only as common cheap filler.
Nano barium sulfate is a kind of novel inorganic material, and it had both had the effect of common barium sulfate, and had had again
There is new specific function, thus be with a wide range of applications.Along with New function device exploitation and
Materials industry flourish, barium sulfate is as the important source material of numerous industries, and its application expands day by day
Greatly, its prescription is significantly improved.
Owing to barium sulfate powder body is in drawbacks such as the compatibility of application aspect and the compatibilitys, preparation has good point
The nano barium sulfate transparent dispersion dissipating property just has important researching value.In prior art, it is usually logical
Cross and the nano-barium sulfate powder obtained is distributed in dispersant, prepare barium sulfate dispersion.But i.e.
Being ultra-fine barium sulfate nano-powder, the opportunity modified without surface or modify its surface is incorrect,
Can not be stable be distributed in medium.This is due to the heavier mass of barium sulfate powder body own, simultaneously with have
Machine solvent is incompatible, can not reach stable suspended state in organic solvent.Document is had to report one
Use the method that loaded Catalyst By Water-in-oil Microemulsion prepares ultra-fine barium sulfate granule, application the method can prepare
Small particle is the barium sulfate powder body of about 17nm, but is scattered in organic media ethylene glycol by this kind of powder body,
The dispersion finally given is muddy, just occurs to precipitate completely after placing about 30min.Accordingly, it would be desirable to one
Plant high transparency and stable barium sulphate nano dispersion and its preparation method and application.
Summary of the invention
First purpose of the present invention is to provide a kind of high transparency barium sulphate nano dispersion.
Second object of the present invention is to provide the preparation side of above-mentioned high transparency barium sulphate nano dispersion
Method.
Third object of the present invention is to provide the application of above-mentioned high transparency barium sulphate nano dispersion.
For reaching above-mentioned first purpose, the present invention uses following technical proposals:
A kind of high transparency barium sulphate nano dispersion, this dispersion includes dispersant and changing of being dispersed therein
Property nanometer barium sulfate grains；
One or more in the following material of described dispersant: ethylene glycol, ethanol, methanol, positive third
Alcohol, acetone, ethyl acetate, butyl acetate, toluene, dimethylbenzene, normal hexane, hexamethylene；
Described modified nano-barium sulfate granule is nanometer barium sulfate grains outer cladding modifying agent, and particle diameter is
1-25nm, solid content is 0.0001-20wt%, preferably 0.0001-10wt%；
One or more in following material of described modifying agent: sodium lauryl sulphate, polyethylene pyrrole
Pyrrolidone, six alkyl trimethyl ammonium bromides, 18-amine., enuatrol, oleic acid, vinyl triacetoxy
Silane, 3-glycidyl ether oxygen propyl trimethoxy silicane, KH570, hexadecyl trimethoxy silane,
Styrene ethyl trimethoxy silane, Vinyldimethylethoxysilane, n-octyl trimethoxy silane.
Preferably, the visible light transmissivity of this dispersion reaches more than 60%, stores more than 48h and does not precipitates；
It is highly preferred that the visible light transmissivity of this dispersion reaches more than 80%, store and do not precipitate for more than 3 months.
For reaching above-mentioned second purpose, the present invention uses following technical proposals:
The preparation method of above-mentioned high transparency barium sulphate nano dispersion, comprises the following steps:
1) barium salt is dissolved in organic solvent, forms barium salt solution；
Sulfate is dissolved in organic solvent, forms sulfate liquor；
2) barium salt solution and sulfate liquor are mixed, be added thereto to modifying agent, at constant temperature simultaneously
Under be modified, centrifugal, washing, obtain modified nano-barium sulfate granule；
3) by modified nano-barium sulfate granule ultrasonic disperse to dispersant, high transparency barium sulphate nano is obtained
Dispersion；
Step 2) in, one or more in following material of described modifying agent: sodium lauryl sulphate,
Polyvinylpyrrolidone, six alkyl trimethyl ammonium bromides, 18-amine., enuatrol, oleic acid, vinyl three
Acetoxylsilane, 3-glycidyl ether oxygen propyl trimethoxy silicane, KH570, cetyl trimethoxy
Base silane, styrene ethyl trimethoxy silane, Vinyldimethylethoxysilane, n-octyl front three
TMOS；
Step 2) in, described modifying agent is 1-50:100 with the mol ratio of product barium sulfate；Modifying agent with
The mol ratio of product barium sulfate refers to rub than the theory of the barium sulfate obtained according to metering with sulfate and barium salt
Your amount is reference, calculates the addition of modifying agent；
Step 3) in, one or more in the following material of described dispersant: ethylene glycol, ethanol,
Methanol, normal propyl alcohol, acetone, ethyl acetate, butyl acetate, toluene, dimethylbenzene, normal hexane, hexamethylene
Alkane.
The present invention is by adding in the mixture of barium salt organic reaction solvent and sulfate organic reaction solvent
Modifying agent, makes modifying agent be coated on the surface of prepared barium sulfate particle, forms surface coating layer, afterwards
By modified barium sulfate ultrasonic disperse, by controlling modifying agent, modified condition, dispersant, obtain
The barium sulphate nano dispersion that bright property is good, stability is high.
Preferably, step 1) in, one or more in following material of described barium salt: barium nitrate,
Barium hydroxide, barium chloride etc..
Preferably, step 1) in, in described barium salt solution, the concentration of barium salt is 0.0001mol/L-0.1mol/L；
More preferably 0.004mol/L-0.030mol/L.
Preferably, step 1) in, one or more in following material of described sulfate: ammonium sulfate,
Sodium sulfate, dilute sulfuric acid, concentrated sulphuric acid etc..
Preferably, step 1) in, in described sulfate liquor, the concentration of sulfate is
0.0003mol/L-0.1mol/L；More preferably 0.004mol/L-0.030mol/L.
Preferably, step 1) in, one or more in following material of described organic solvent: ethanol,
Methanol, normal propyl alcohol, acetone, ethyl acetate, butyl acetate, toluene, dimethylbenzene, normal hexane, hexamethylene
Alkane.Dissolving barium salt can be identical with the organic solvent of sulfate, can be different.
Preferably, step 2) in, described barium salt solution is 0.5-1.5:1 with the mol ratio of sulfate liquor.
Preferably, step 2) in, the temperature of constant temperature is 10-70 DEG C, more preferably 20-60 DEG C,
Most preferably 40-60 DEG C.
Preferably, step 2) in, modification time is 0.5-10h, more preferably 1-8h, most preferably 2-7h.
Preferably, step 3) in, ultrasonic time is 0.5-12h, more preferably 1-10h, most preferably
4-6h。
Preferably, step 3) in, in the barium sulphate nano dispersion of the high transparency obtained, modified Nano sulfur
The solid content of acid titanate particle is 0.0001-20wt%, preferably 0.0001-10wt%.
The present invention also provides for the application of the above-mentioned high transparency barium sulphate nano dispersion prepared, and this height is saturating
Bright barium sulphate nano dispersion may be used for various coating (aqueous, oiliness and powdery paints, automobile coating,
Woodcare paint, exterior wall paint, corrosion resistant coating, high lac varnish, e-inks, printing-ink etc.), modified plastics (PA,
PBT, PET, PC, POM, PMMA, PP, ABS, PE, PS, automobile plastic, appliance shell,
Thin film, building materials plastics etc.), rubber, elastomer, papermaking, the filler of cosmetics etc., it is also possible to be used as thoroughly
Depending on swallowing agent (becoming barium meal) during the intestines and stomach, the cathode expansion rod of accumulator, manufacture pottery, the glaze of enamel
Face material, the smears, surface of impression paper and art paper, the sizing agent of textile industry, used in glass products
Make clarifier, froth breaking can be played and increase the effect of gloss.
Beneficial effects of the present invention is as follows:
1, the raw material of the present invention is readily obtained, cheap, and method is simple, and production cost is low, to environment
Close friend, is suitable for industrialized production；
2, the present invention is by selecting suitable barium salt, sulfate, modifying agent and dispersant, and controls to change
Property condition, the barium sulphate nano dispersion of the stability having had and the high transparency can be prepared easily
Body；
3, the visible light transmissivity of the barium sulphate nano dispersion of the present invention is more than 60%, can store 48h
Below do not precipitate；Under optimum condition, it is seen that light transmission rate, up to more than 80%, can store 3 months not
Precipitation.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further detail.
Fig. 1 is the XRD figure spectrum of the barium sulphate nano dispersion of embodiment 1 preparation.
Fig. 2 is the TEM image of the barium sulphate nano dispersion of embodiment 1 preparation.
Fig. 3 is the photo of the barium sulphate nano dispersion of embodiment 1 preparation.
Detailed description of the invention
In order to be illustrated more clearly that the present invention, below in conjunction with preferred embodiment, the present invention is done further
Bright.It will be appreciated by those skilled in the art that following specifically described content is illustrative rather than limiting
Property, should not limit the scope of the invention with this.
Embodiment 1
By methanol solution 80mL and concentrated sulphuric acid molar concentration that barium chloride molar concentration is 0.025mol/L it is
The methanol solution 40mL of 0.025mol/L is mixed to join in flask, is simultaneously introduced modifying agent KH570；Change
Property agent and barium sulfate mol ratio be 20:100；
Controlling temperature 60 C, constant temperature stirs, and modification time controls as 3h, closedown constant temperature after end to be modified
Water bath heating device；
Gained suspension is centrifuged washing, and regulation rotating speed is to 12000rmp, centrifugation time 10min, first
With pure water 4 times, then by washing with alcohol 4 times, after washing, obtain modified barium sulfate solid；
Gained solid ultrasonic disperse is in ethylene glycol, and ultrasonic time controls to be 4h, and obtaining solid content is 5wt%
High transparency barium sulphate nano dispersion.
By in this dispersion quartz colorimetric utensil as two sides printing opacity, use UV, visible light near infrared spectrometer
Recording visible light transmissivity is 86%, can store 3 months and not precipitate.
This high transparency barium sulphate nano dispersion can be used as clarifier in glass.
Fig. 1 is the XRD figure spectrum of the barium sulphate nano dispersion of embodiment 1 preparation.
Fig. 2 is the TEM image of the barium sulphate nano dispersion of embodiment 1 preparation.
Fig. 3 is the photo of the barium sulphate nano dispersion of embodiment 1 preparation.
Embodiment 2
By ethanol solution 100mL and concentrated sulphuric acid molar concentration that barium chloride molar concentration is 0.004mol/L it is
The ethanol solution 100mL of 0.004mol/L is mixed to join in flask, is simultaneously introduced modifying agent KH570；
Modifying agent is 50:100 with the mol ratio of barium sulfate；
Controlling temperature 60 C, constant temperature stirs, and modification time controls as 2h, closedown constant temperature after end to be modified
Water bath heating device；
Gained suspension is centrifuged washing, and regulation rotating speed is to 12000rmp, centrifugation time 10min, first
With pure water 4 times, then by washing with alcohol 4 times, after washing, obtain modified barium sulfate solid；
Gained solid ultrasonic disperse is in normal hexane, and ultrasonic time controls to be 4h, and obtaining solid content is 2wt%
High transparency barium sulphate nano dispersion.
By in this dispersion quartz colorimetric utensil as two sides printing opacity, use UV, visible light near infrared spectrometer
Recording visible light transmissivity is 92%, can store 3 months and not precipitate.
Embodiment 3
By ethanol solution 100mL and sodium sulfate molar concentration that barium nitrate molar concentration is 0.005mol/L it is
The ethanol solution 100mL of 0.005mol/L is mixed to join in flask, is simultaneously introduced modifying agent dodecyl
Sodium sulfate；Modifying agent is 30:100 with the mol ratio of barium sulfate.
Controlling temperature 60 C, constant temperature stirs, and modification time controls as 5h, closedown constant temperature after end to be modified
Water bath heating device；
Gained suspension is centrifuged washing, and regulation rotating speed is to 12000rmp, centrifugation time 10min, first
With pure water 4 times, then by washing with alcohol 4 times, after washing, obtain modified barium sulfate solid；
Gained solid ultrasonic disperse is in ethylene glycol, and ultrasonic time controls to be 4h, and obtaining solid content is 2.5wt%
High transparency barium sulphate nano dispersion.
By in this dispersion quartz colorimetric utensil as two sides printing opacity, use UV, visible light near infrared spectrometer
Recording visible light transmissivity is 88%, can store 3 months and not precipitate.
Embodiment 4
By ethanol solution 80mL and ammonium sulfate molar concentration that barium nitrate molar concentration is 0.009mol/L it is
The ethanol solution 80mL of 0.009mol/L is mixed to join in flask, is simultaneously introduced modifying agent enuatrol；Change
Property agent and barium sulfate mol ratio be 10:100；
Controlling temperature 50 C, constant temperature stirs, and modification time controls as 4h, closedown constant temperature after end to be modified
Water bath heating device；
Gained suspension is centrifuged washing, and regulation rotating speed is to 12000rmp, centrifugation time 10min, first
With pure water 4 times, then by washing with alcohol 4 times, after washing, obtain modified barium sulfate solid；
Gained solid ultrasonic disperse is in methanol, and ultrasonic time controls to be 6h, and obtaining solid content is 1wt%'s
High transparency barium sulphate nano dispersion.
By in this dispersion quartz colorimetric utensil as two sides printing opacity, use UV, visible light near infrared spectrometer
Recording visible light transmissivity is 82%, can store 3 months and not precipitate.
Embodiment 5
By dense to ethyl acetate solution 100mL and dilute sulfuric acid mole that barium hydroxide molar concentration is 0.03mol/L
Degree is mixed to join in flask for the ethyl acetate solution 100mL of 0.03mol/L, is simultaneously introduced modifying agent
KH570；Modifying agent is 50:100 with the mol ratio of barium sulfate；
Controlling temperature 40 DEG C, constant temperature stirs, and modification time controls as 7h, closedown constant temperature after end to be modified
Water bath heating device；
Gained suspension is centrifuged washing, and regulation rotating speed is to 12000rmp, centrifugation time 10min, first
With pure water 4 times, then by washing with alcohol 4 times, after washing, obtain modified barium sulfate solid；
Gained solid ultrasonic disperse is in ethanol, and ultrasonic time controls to be 6h, and obtaining solid content is 6.5wt%
High transparency barium sulphate nano dispersion.
By in this dispersion quartz colorimetric utensil as two sides printing opacity, use UV, visible light near infrared spectrometer
Recording visible light transmissivity is 81%, can store 3 months and not precipitate.
Embodiment 6-16
Repeating embodiment 1, it the difference is that only: the organic solvent dissolving barium chloride is respectively as follows: positive third
Alcohol；Acetone；Butyl acetate；Toluene；Dimethylbenzene；Normal hexane；Hexamethylene；Normal propyl alcohol and the mixing of acetone
Thing (volume ratio 1:1)；The mixture (volume ratio 1:1:1) of butyl acetate, toluene and dimethylbenzene；Methanol and
The mixture (volume ratio 1:1) of ethanol；The mixture (volume ratio 1:2) of methanol and ethanol.Test result and
Embodiment 1 is similar.
Embodiment 17-27
Repeating embodiment 1, it the difference is that only: the organic solvent dissolving concentrated sulphuric acid is respectively as follows: positive third
Alcohol；Butyl acetate；Toluene；Acetone；Normal hexane；Dimethylbenzene；Hexamethylene；Normal propyl alcohol and the mixing of acetone
Thing (volume ratio 3:1)；The mixture (volume ratio 3:3:1) of butyl acetate, toluene and dimethylbenzene；Methanol and
The mixture (volume ratio 2:1) of ethanol；The mixture (volume ratio 1:2) of methanol and ethanol.Test result and
Embodiment 1 is similar.
Embodiment 28
Repeating embodiment 1, it the difference is that only: described barium salt is barium hydroxide.Test result and reality
Execute example 1 to be similar.
Embodiment 29-31
Repeating embodiment 1, it the difference is that only: time modified, control temperature be respectively 15 DEG C, 20 DEG C,
65℃。
Embodiment 32
Repeating embodiment 2, it the difference is that only: described barium salt solution concentration is 0.0001mol/L.With
It is 75% that UV, visible light near infrared spectrometer records visible light transmissivity, place about 3 days the most heavy
Form sediment.
Embodiment 33
Repeating embodiment 2, it the difference is that only: described barium salt solution concentration is 0.1mol/L.With purple
It is 61% that outer visible near-infrared spectrophotometer records visible light transmissivity, places and precipitates completely for about 2 days.
Embodiment 34
Repeating embodiment 33, it the difference is that only: the concentration of described sulfate is 0.0003mol/L.
Embodiment 35
Repeating embodiment 32, it the difference is that only: the concentration of described sulfate is 0.1mol/L.
Embodiment 36-46
Repeating embodiment 2, it the difference is that only: described modifying agent is respectively as follows: polyvinylpyrrolidone；
Cetyl trimethylammonium bromide；18-amine.；Oleic acid；Vinyltriacetoxy silane；3-shrinks sweet
Oil ether oxygen propyl trimethoxy silicane；Hexadecyl trimethoxy silane；Styrene ethyl trimethoxy silicon
Alkane；Vinyldimethylethoxysilane；N-octyl trimethoxy silane；Polyvinylpyrrolidone and ten
The mixture (volume ratio 2:1) of six alkyl trimethyl ammonium bromides.Test result and embodiment 1 are similar.
Comparative example 1
With embodiment 1, difference is: when being dissolved in organic solvent by barium salt, adds modifying agent.Knot
Fruit be: gained barium sulfate dispersion is the most transparent, and can not stable existence, place 50min the most heavy
Form sediment, be precipitated as cotton-shaped.
Comparative example 2
With embodiment 1, difference is: when being dissolved in organic solvent by sulfate, adds modifying agent.
Result is: gained barium sulfate dispersion is the most transparent, and can not stable existence, place 45min complete
Precipitation, is precipitated as cotton-shaped.
Comparative example 3
With embodiment 1, difference is: first barium salt solution and sulfate liquor is mixed, prepares barium sulfate,
Add modifying agent afterwards.Result is: gained barium sulfate dispersion is the opaquest, and can not stable existence,
Place 10min to precipitate completely.
Comparative example 4
With embodiment 1, difference is: controlling temperature time modified is 5 DEG C.Result is: gained barium sulfate divides
A prose style free from parallelism is the opaquest, and can not stable existence, place 16min precipitate completely.
Comparative example 5
With embodiment 1, difference is: controlling temperature time modified is 80 DEG C.Result is: in course of reaction
In, after being warmed up to 80 DEG C, methanol seriously seethes with excitement, and causes experiment not proceed.
Comparative example 6
With embodiment 1, difference is: modifying agent is 100:100 with the mol ratio of barium sulfate.Result is:
Gained barium sulfate dispersion is the most transparent, simultaneously can not stable existence, place 50min and precipitate completely, heavy
Form sediment for cotton-shaped.
Comparative example 7
With embodiment 1, difference is: modifying agent is 150:100 with the mol ratio of barium sulfate.Result is:
Gained barium sulfate dispersion is the most transparent, simultaneously can not stable existence, place 1h and precipitate completely, precipitation
For cotton-shaped.
Comparative example 8
With embodiment 3, difference is: modifying agent is dodecylbenzene sodium sulfonate.Result is: gained sulphuric acid
Barium dispersion is opaque, and can not stable existence, place 20min precipitate completely.
Obviously, the above embodiment of the present invention is only for clearly demonstrating example of the present invention, and
It is not the restriction to embodiments of the present invention, for those of ordinary skill in the field,
Can also make other changes in different forms on the basis of described above, here cannot be to all
Embodiment give exhaustive, every belong to the obvious change that technical scheme extended out
Change or change the row still in protection scope of the present invention.
Claims (10)
1. a high transparency barium sulphate nano dispersion, it is characterised in that this dispersion include dispersant and
The modified nano-barium sulfate granule being dispersed therein；
One or more in the following material of described dispersant: ethylene glycol, ethanol, methanol, positive third
Alcohol, acetone, ethyl acetate, butyl acetate, toluene, dimethylbenzene, normal hexane, hexamethylene；
Described modified nano-barium sulfate granule is nanometer barium sulfate grains outer cladding modifying agent, and particle diameter is
1-25nm, solid content is 0.0001-20wt%, preferably 0.0001-10wt%；
One or more in following material of described modifying agent: sodium lauryl sulphate, polyethylene pyrrole
Pyrrolidone, six alkyl trimethyl ammonium bromides, 18-amine., enuatrol, oleic acid, vinyl triacetoxy
Silane, 3-glycidyl ether oxygen propyl trimethoxy silicane, KH570, hexadecyl trimethoxy silane,
Styrene ethyl trimethoxy silane, Vinyldimethylethoxysilane, n-octyl trimethoxy silane.
High transparency barium sulphate nano dispersion the most according to claim 1, it is characterised in that this point
The visible light transmissivity of a prose style free from parallelism reaches more than 60%, stores more than 48h and does not precipitates；Preferably, this dispersion
Visible light transmissivity reach more than 80%, store and do not precipitate for more than 3 months.
3. the preparation method of high transparency barium sulphate nano dispersion as claimed in claim 1 or 2, it is special
Levying and be, the method comprises the following steps:
1) barium salt is dissolved in organic solvent, forms barium salt solution；
Sulfate is dissolved in organic solvent, forms sulfate liquor；
2) barium salt solution and sulfate liquor are mixed, be added thereto to modifying agent, at constant temperature simultaneously
Under be modified, obtain modified nano-barium sulfate granule；
3) by modified nano-barium sulfate granule ultrasonic disperse to dispersant, high transparency barium sulphate nano is obtained
Dispersion；
Preferably, step 2) in, one or more in following material of described modifying agent: dodecane
Base sodium sulfate, polyvinylpyrrolidone, cetyl trimethylammonium bromide, 18-amine., enuatrol, oil
Acid, vinyltriacetoxy silane, 3-glycidyl ether oxygen propyl trimethoxy silicane, γ-(methyl-prop
Alkene acyl-oxygen) propyl trimethoxy silicane, hexadecyl trimethoxy silane, styrene ethyl trimethoxy
Silane, Vinyldimethylethoxysilane, n-octyl trimethoxy silane；
Step 2) in, modifying agent is 1-50:100 with the mol ratio of barium sulfate；
Step 3) in, one or more in the following material of described dispersant: ethylene glycol, ethanol,
Methanol, normal propyl alcohol, acetone, ethyl acetate, butyl acetate, toluene, dimethylbenzene, normal hexane, hexamethylene
Alkane.
The preparation method of high transparency barium sulphate nano dispersion the most according to claim 3, its feature
It is, step 1) in, one or more in following material of described barium salt: barium nitrate, hydroxide
Barium, barium chloride；One or more in the following material of described sulfate: ammonium sulfate, sodium sulfate,
Dilute sulfuric acid, concentrated sulphuric acid.
The preparation method of high transparency barium sulphate nano dispersion the most according to claim 3, its feature
It is, step 1) in, in described barium salt solution, the concentration of barium salt is 0.0001mol/L-0.1mol/L, more
It is preferably 0.004mol/L-0.030mol/L；In described sulfate liquor, the concentration of sulfate is
0.0003mol/L-0.1mol/L, more preferably 0.004mol/L-0.030mol/L.
The preparation method of high transparency barium sulphate nano dispersion the most according to claim 3, its feature
Be, step 1) in, one or more in the following material of described organic solvent: ethanol, methanol,
Normal propyl alcohol, acetone, ethyl acetate, butyl acetate, toluene, dimethylbenzene, normal hexane, hexamethylene.
The preparation method of high transparency barium sulphate nano dispersion the most according to claim 3, its feature
It is,
Preferably, step 2) in, described barium salt solution is 0.5-1.5:1 with the mol ratio of sulfate liquor.
Preferably, step 2) in, the temperature of constant temperature is 10-70 DEG C, preferably 20-60 DEG C, more
It is preferably 40-60 DEG C；
Preferably, step 2) in, modification time is 0.5-10h, preferably 1-8h, more preferably 2-7h.
The preparation method of high transparency barium sulphate nano dispersion the most according to claim 3, its feature
It is, step 3) in, ultrasonic time is 0.5-12h, preferably 1-10h, more preferably 4-6h.
The preparation method of high transparency barium sulphate nano dispersion the most according to claim 3, its feature
It is, it is preferable that step 3) in, in the barium sulphate nano dispersion of the high transparency obtained, modified Nano
The solid content of barium sulfate particle is 0.0001-15wt%, preferably 0.0001-8wt%.
10. the high transparency barium sulphate nano prepared by the arbitrary described preparation method of claim 1-9 divides
The application of a prose style free from parallelism, this high transparency barium sulphate nano dispersion can be used as coating, modified plastics, rubber, elasticity
Body, papermaking, the filler of cosmetics, swallow agent during perspective the intestines and stomach, and the cathode expansion of accumulator rod manufactures
Pottery, the glazing type material of enamel, the smears, surface of impression paper and art paper, the sizing agent of textile industry,
The clarifier of glass.
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| CN110451549A (en) * | 2019-08-30 | 2019-11-15 | 南宁众创空间科技有限公司 | A kind of preparation method of high dispersive barite |
| CN112299467A (en) * | 2019-07-31 | 2021-02-02 | 北京化工大学 | Preparation method of monodisperse oil phase nano barium sulfate dispersoid |
| CN114854249A (en) * | 2022-03-25 | 2022-08-05 | 广东欧文莱陶瓷有限公司 | Metal ink for rock plate |
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| CN107827468A (en) * | 2017-10-31 | 2018-03-23 | 齐鲁工业大学 | A kind of composite nanometer particle of alumina-coated calcirm-fluoride and preparation method thereof |
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| CN112299467A (en) * | 2019-07-31 | 2021-02-02 | 北京化工大学 | Preparation method of monodisperse oil phase nano barium sulfate dispersoid |
| CN112299467B (en) * | 2019-07-31 | 2022-10-28 | 北京化工大学 | Preparation method of monodisperse oil-phase nano barium sulfate dispersoid |
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