CN110523240A - A kind of spherical powder of modified negative-ion and preparation method thereof - Google Patents
A kind of spherical powder of modified negative-ion and preparation method thereof Download PDFInfo
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- CN110523240A CN110523240A CN201910757923.4A CN201910757923A CN110523240A CN 110523240 A CN110523240 A CN 110523240A CN 201910757923 A CN201910757923 A CN 201910757923A CN 110523240 A CN110523240 A CN 110523240A
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- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
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Abstract
The invention discloses spherical powders of a kind of modified negative-ion and preparation method thereof, the powder includes: 80~120 parts of tourmaline powder, 12~24 parts of composite modifier, 35~45 parts of filling additive according to parts by weight, the composite modifier includes organic modifiers and inorganic modifier, and the ratio of organic modifiers and inorganic modifier is 2:1.The preparation method includes stock, the modification of tourmaline powder and drying steps.Spherical powder of the modified negative-ion provided through the invention and preparation method thereof, available spherical modified negative-ion powder have preferable dispersibility and stability in high molecular material, and its anion amount of inducing is high, and ordor removing is good except effect of formaldehyde.
Description
Technical field
The present invention relates to environmental protective chemical industry technical field, in particular to the spherical powder of a kind of modified negative-ion and its preparation side
Method.
Background technique
Negative aeroion is also negative oxygen ion or anion, is to be present in ion or ion of the one kind with floating-point in atmosphere
Group has purification air, anti-oxidant, anti-aging, removing interior free yl and other effects, therefore negative aeroion is also referred to as " empty
Gas vitamin " becomes one of the important indicator for measuring air quality degree.In the Nature, pass through ultraviolet light, thunder and lightning, universe
The influence of ray or radioactive ray makes atmosphere that ionization occur and generate anion, therefore the Nature itself has the energy for generating anion
Power.Wherein, tourmaline, opal, six ring stones, Strange ice stone have the function of discharging anion, are studied extensively by people.Especially
Tourmaline, since it is with permanent spontaneous polarization effect, can sustained release anion, thus as a kind of health, environmental protection
Anion releasable material is widely used in every field.
Tourmaline be it is a kind of containing boron, aluminium, sodium, iron, lithium, magnesium ring silicate mineral, have spontaneous polarity effect,
Tourmaline is shown as there are ambient static electricity field, the hydrone in electric field can be made to be electrolysed, forms charged ion, electrification
Ion in conjunction with other particles, formed charged particle, charged particle have stronger interfacial activity, can adsorbing contaminant, dust,
Play the role of purifying water source and air, while oxygen or water molecules in electronegative ion and air, forms anion, tool
Play the role of improving air quality, enhancing human health.
But tourmaline in application process usually because dispersibility and stability be restricted, especially in macromolecule material
Application in material.Since tourmaline is inorganic material, the dispersibility and stability in high molecular material are poor, usually pass through
Refinement partial size or surface are modified dispersed to improve its, but since the surface-active of fine grained tourmaline powder is very high, phase
It is easy to reunite between mutually, and the tourmaline powder field effect decline after reuniting, the ability for inducing anion are affected.Separately
Outside, the hardness of tourmaline is very big, and usually in the form of sheets or triangular shape, sheet-like particle is easy overlapping and reunites particle, makes its stabilization
Property decline.Therefore, the dispersibility, stability and field effect for how improving tourmaline are that current tourmaline is widelyd popularize
Key point.As it can be seen that the prior art could be improved and improve.
Summary of the invention
Place in view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of spherical powders of modified negative-ion
And preparation method thereof, it is intended to solve the defect that anion powder is dispersed in the prior art and stability is poor.
In order to achieve the above object, this invention takes following technical schemes:
A kind of spherical powder of modified negative-ion, wherein the powder includes: tourmaline powder 80~120, composite modifier 12
~24, filling additive 35~45, the composite modified modifying agent include organic modifiers and inorganic modifier, and organic modifiers
Ratio with inorganic modifier is 2:1.
In the spherical powder of modified negative-ion, the tourmaline powder is Mg tourmaline powder.
In the spherical powder of modified negative-ion, the organic modifiers include Sodium Polyacrylate, polyacrylic acid potassium, 12
One of sodium alkyl benzene sulfonate.
In the spherical powder of modified negative-ion, the inorganic modifier includes sodium polyphosphate, calgon and coke
One of sodium phosphate.
In the spherical powder of modified negative-ion, the filling additive includes white carbon black, diatomite, one in kaolin
Kind.
A kind of spherical raw powder's production technology of modified negative-ion as described above, wherein the described method comprises the following steps:
Step S1. stock: tourmaline powder, organic modifiers, inorganic modifier and filling additive are taken according to the ratio, while by electricity
The proportion of gas mountain flour and deionized water 1:8~10 removes ionized water；
Tourmaline powder and deionized water: being first stirred by the modification of step S2. tourmaline powder, is then added to mixed in advance
In the composite modifier got togather, regulation system pH value makes its pH value 9~10, and filling additive mixing is added, then will mixing
Material first carries out stirring at low speed ball milling at 80 DEG C~90 DEG C, recycles 4~6h of ball milling, then carries out high-speed stirred ball milling, circulating ball again
After grinding 1~2h, slurry partial size is surveyed, partial size >=2800 mesh then stops ball milling, obtains modified negative-ion slurry material；
Step S3. is dry: by modified negative-ion slurry material obtained in step S2 through drying, obtaining modified negative-ion powder.
In the spherical raw powder's production technology of modified negative-ion, it is 1000 that ball milling speed is stirred at low speed in the step S2
~2000rpm, the speed of high-speed stirred ball milling are 3000~4000rpm.
In the spherical raw powder's production technology of modified negative-ion, the drying steps include in drying or spray drying
It is a kind of.
In the spherical raw powder's production technology of modified negative-ion, the condition of the spray drying are as follows: inlet air temperature 140
DEG C~180 DEG C, outlet temperature is 60 DEG C~80 DEG C, air quantity 5m3/min。
The utility model has the advantages that
The present invention provides spherical powder of a kind of modified negative-ion and preparation method thereof, the modified negative-ion spherical powder
Body forms fine and close clad, the cladding on tourmaline surface in such a way that organic modifiers and inorganic modifier combine
Layer can greatly improve the dispersibility and stability of anion powder, while be filled by the absorption of packing material, obtain spherical
Powder avoids the field effect as caused by the reunion between powder from declining, to keep the stability of anion powder more preferable, bears
The ion amount of inducing is bigger, and ordor removing is more preferable except effect of formaldehyde.
Specific embodiment
The present invention provides a kind of spherical powder of modified negative-ion and preparation method thereof, to make the purpose of the present invention, technical side
Case and effect are clearer, clear, and the present invention is described in more detail by the following examples.It should be appreciated that described herein
Specific examples are only used to explain the present invention, is not intended to limit the present invention.
The present invention provides a kind of spherical powder of modified negative-ion, and the powder includes: tourmaline powder 80 according to parts by weight
~120, composite modifier 12~24, filling additive 35~45, the composite modified modifying agent include organic modifiers and inorganic
Modifying agent, and the ratio of organic modifiers and inorganic modifier is 2:1.
The spherical powder of the modified negative-ion that above-mentioned formula obtains makes electricity by the modification of composite modifier and filling additive
Gas mountain flour has preferable dispersibility and stability, and can improve the anion amount of inducing, and has purification air, removes peculiar smell
Effect.The tourmaline powder has the characteristic of permanent electrode, can cause potential difference in the case where temperature and pressure minor change,
Generating electrostatic makes air ionization, so that the electrons hit be made to be attached in hydrone or oxygen molecule, it is negative to be converted into air
Ion；The composite modifier includes organic modifiers and inorganic modifier, and composite modifier can pass through chemistry with tourmaline powder
Bonding and physical absorption, thus tourmaline surface formed clad, change tourmaline powder surface can, make tourmaline have compared with
Good dispersibility and stability；The filler can be adsorbed on modified anion powder surface, make modified tourmaline
Powder forms small spherical, and spherical structure can be avoided the reunion between powder, to have preferably dispersibility and stability.
In above-mentioned formula, the tourmaline powder is Mg tourmaline powder.In dravite powder the content of magnesia be about 6~
15%, in addition to having the function of piezoelectricity, dravite also have in 2~18 μ m wavelength ranges the absorption of infrared active key or
Emission band is than wider characteristic, therefore the full infrared emittance with higher in 2~18 μ m wavelength ranges, thus have compared with
Good pyroelectric.The infrared electromagnetic radiation of Mg- tourmaline powder can produce fuel factor, and old dead cell can be made to drain or regenerate, increased
The function and energy of strong cell, have health-care effect to human body.
In above-mentioned formula, the organic modifiers include Sodium Polyacrylate, polyacrylic acid potassium, in neopelex
One kind.The organic modifiers can be bonded instead by the hydrophilic radical in each molecule with the hydroxyl on tourmaline particle surface
It answers, forms stable chemical bond, to form clad on tourmaline particle surface.Clad can change tourmaline surface electricity
Position increases its Zeta potential, to increase interparticle electrostatic repulsion, has preferable dispersibility and stability.Together
When, since the group chain of cladding is long, to make the steric hindrance of tourmaline increase, further promote dispersion and stablize.
Preferably, when the organic dispersing agent is Sodium Polyacrylate, there is preferable modified effect.Due to Sodium Polyacrylate
Exist in the form of RCOO- under alkaline condition, and the hydroxyl that the surface tourmaline Mg-O is formed is due to stronger degree of ionization,
Still positively charged under alkaline condition, by physics and chemical reaction, Sodium Polyacrylate is largely adsorbed on tourmaline surface, is formed
Stable clad.The sodium polyphosphate of cladding is remarkably improved the quantity of electric charge on tourmaline powder surface, enhances between powder granule
Electrostatic force effect, and then improve powder between dispersion performance, on the other hand, due to powder surface absorption long-chain molecule,
Make between powder granule that there are the effects of stronger steric hindrance, there is electrostatic stabilization effect and the dual effect of space stability ultimate load effect
Fruit.
In said ratio, the inorganic modifier includes one of sodium polyphosphate, calgon and sodium pyrophosphate,
Preferably sodium polyphosphate.The anion that the sodium polyphosphate, calgon and sodium pyrophosphate are formed can be adsorbed on electricity
Gas stone surface is greatly improved the electrostatic repulsion effect between tourmaline, improves its dispersibility.Preferably, when inorganic modifier is
When sodium polyphosphate, there is preferable suction-operated.
But since inorganic dispersant chain is shorter, steric hindrance effect can not be formed, therefore modified powder settles
Speed is fast, unstable.And the chain of organic modifiers is long, steric hindrance is larger, and the modifying agent first adsorbed can stop subsequent
Modifying agent continues to adsorb, so that fine and close clad can not be formed on surface.When organic modifiers and inorganic modifier are made jointly
Used time, since the molecular structure of inorganic modifier is small, the long-chain that can pass through organic modifiers is adsorbed on tourmaline surface, fills up empty
Between gap caused by steric hindrance, finer and close clad is formed on tourmaline surface.Therefore, inorganic modifier and organic modifiers are total
Same-action forms fine and close clad, and making tourmaline not only has biggish electrostatic repulsion effect, while having biggish space bit
Resistance effect, so that modified tourmaline has preferable dispersibility and stability.Preferably, when organic modifiers and nothing
When machine modifying agent 2:1 ratio is added, the clad that can be formed on tourmaline surface is the finest and close, and the Zeta potential of tourmaline is most
Height, preferably, stability is optimal for dispersibility.
In said ratio, the filling additive includes one of white carbon black, diatomite, kaolin, and the white carbon black,
Diatomite, kaolinic partial size are >=3000.Since modified tourmaline powder surface is charged, neutral particle can be adsorbed, it is described
Inorganic filler can be adsorbed on modified tourmaline powder surface, form spherical powder.The neutral particle of absorption can reduce electricity
The interparticle liquid bridge power of gas mountain flour, and increase interparticle distance, the mutual bonding of particle is reduced, point of tourmaline is further increased
Dissipate performance.
A kind of spherical raw powder's production technology of modified negative-ion as described above, the described method comprises the following steps:
Step S1. stock: tourmaline powder, organic modifiers, inorganic modifier and filling additive are taken according to the ratio, while by electricity
The proportion of gas mountain flour and deionized water 1:8~10 removes ionized water.The amount of deionized water influences the stream of slurry in subsequent step
Dynamic property, in mechanical milling process, when the partial size of slurry is smaller and smaller, viscosity is increasing, and mobility is gradually reduced, if viscosity mistake
Greatly, it will influence the efficiency of ball milling, therefore control the ratio of tourmaline powder and deionized water, to obtain better suited viscosity.When
When tourmaline powder is with deionized water 1:8~10, still there is preferable mobility in the lesser situation of subsequent partial size.
Tourmaline powder and deionized water: being first stirred by the modification of step S2. tourmaline powder, by organic modifiers and nothing
Machine modifying agent mixes to obtain composite modifier, and then tourmaline powder mixture is added in composite modifier, is uniformly mixed,
The pH value of survey system makes its pH value 9~10 then by weak aqua ammonia regulation system pH value, and filling additive mixing is then added,
Mixture is obtained, mixture is first carried out to stir at low speed ball milling at 80 DEG C~90 DEG C, ball milling speed is 1000~2000rpm, circulation
Then 4~6h of ball milling carries out high-speed stirred ball milling again, ball milling speed is 3000~4000rpm, after recycling 1~2h of ball milling, surveys slurry
Expect that partial size then stops ball milling when slurry partial size >=2800 mesh, obtains modified negative-ion slurry material.
Step S3. is dry: by modified negative-ion slurry material obtained in step S2 through drying, obtaining modified negative-ion powder.
Drying mode includes one of drying or spray drying.The modified negative-ion that the drying mode obtains is bulk, need to be into one
The spherical powder of modified negative-ion can be just obtained after step grinding.Take spray dried form that can directly obtain powder, and the grain of powder
Diameter is uniform.The condition of the spray drying are as follows: inlet air temperature is 140 DEG C~180 DEG C, and outlet temperature is 60 DEG C~80 DEG C, air quantity
For 5m3/min.The mode of spray drying comparatively fast, but can be spray-dried easily loss part powder, reduce yield.
In above-mentioned preparation method, the influence factor of the step S2 is more, pH value, ball milling speed and reaction including system
Temperature is to influence the key point of the last dispersibility of tourmaline powder and stability.The pH value of system can make between 9~10
The difference zwitterion with different charge that composite modifier and tourmaline powder are formed, promotes the two to pass through physical absorption and chemistry
Effect combines, and modifying agent is made to be coated on tourmaline powder surface.And ball milling speed is to influence the key point of tourmaline powder partial size,
The revolving speed of ball mill is faster, and obtained partial size is small, but big to the loss of ball-milling medium, on the contrary, the grain that ball milling speed obtains slowly
Diameter is larger, but small to the loss of ball-milling medium, but grinding efficiency is low, in this preparation method, by the way of two sections of ball millings, first
It carries out stirring at low speed ball milling, the speed for controlling ball milling is 1000~2000rpm, recycles 4~6h of ball milling, then high-speed stirred ball again
Mill, the speed for controlling ball milling is 3000~4000rpm, recycles 1~2h of ball milling, can obtain partial size >=2800 mesh, and particle diameter distribution
It is narrow.
In above-mentioned steps S2, reaction temperature is also to influence the influence factor of modified effect, is be easy to cause when temperature is too high de-
Attached, reaction speed is slow when too low, when reaction temperature be 80~90 DEG C when, composite modifier tourmaline surface coating reaction compared with
It is good, and desorption reaction is few.
Name embodiment further explanation.
Embodiment 1
A kind of spherical powder of preferred modified negative-ion, the powder include: 100 parts of dravite powder, Sodium Polyacrylate
12 parts, 6 parts of sodium polyphosphate, 40 parts of filling additive.
A kind of spherical raw powder's production technology of modified negative-ion as described above, the described method comprises the following steps:
Step S1. stock: dravite powder, Sodium Polyacrylate, sodium polyphosphate and filling additive are taken according to the ratio, is pressed simultaneously
The proportion of tourmaline powder and deionized water 1: 9 removes ionized water；
Dravite powder: being first stirred by the modification of step S2. tourmaline powder with deionized water, is then added in advance
In the mixture of the Sodium Polyacrylate and sodium polyphosphate that mix, regulation system pH value makes its pH value 9.8, and is added and fills out
Auxiliary agent mixing is filled, then first carries out mixture at 83 DEG C to stir at low speed ball milling, ball milling speed 1800rpm recycles ball milling 5h,
Then high-speed stirred ball milling is carried out again, and ball milling speed 3500rpm recycles ball milling 2h, slurry partial size is surveyed, when partial size >=2800
Mesh then stops ball milling, obtains modified negative-ion slurry material；
Step S3. is dry: modified negative-ion slurry material obtained in step S2 is spray-dried, obtain modified negative-ion powder
Body.The condition of spray drying are as follows: inlet air temperature is 160 DEG C, and outlet temperature is 75 DEG C, air quantity 5m3/min。
Embodiment 2
A kind of spherical powder of modified negative-ion, the powder include: 80 parts of elbaite powder, 8 parts of polyacrylic acid potassium, six partially
4 parts of sodium phosphate, diatomite 35.
A kind of spherical raw powder's production technology of modified negative-ion as described above, the described method comprises the following steps:
Step S1. stock: elbaite powder, polyacrylic acid potassium, calgon and diatomite are taken according to the ratio, while pressing lithium
The proportion of tourmaline powder and deionized water 1: 8 removes ionized water；
Elbaite powder: being first stirred by the modification of step S2. tourmaline powder with deionized water, is then added in advance
The polyacrylic acid potassium and calgon mixed, regulation system pH value make its pH value 9, and diatomite mixing is added, then
Mixture is first carried out to stir at low speed ball milling at 80 DEG C, ball milling speed 1000rpm recycles ball milling 6h, then carries out high speed again
Stirring ball-milling, ball milling speed 4000rpm after recycling ball milling 1h, survey slurry partial size when partial size >=2800 mesh and then stop ball milling,
Obtain modified negative-ion slurry material；
Step S3. is dry: by modified negative-ion slurry material drying obtained in step S2, then grinding again, obtains modification
Anion powder.
Embodiment 3
A kind of spherical powder of modified negative-ion, the powder include: 120 parts of iron tourmaline powder, neopelex
12 parts, 8 parts of sodium pyrophosphate, 45 parts of kaolin.
A kind of spherical raw powder's production technology of modified negative-ion as described above, the described method comprises the following steps:
Step S1. stock: iron tourmaline powder, neopelex, sodium pyrophosphate and kaolin are taken according to the ratio, simultaneously
Ionized water is removed by the proportion of iron tourmaline powder and deionized water 1: 10；
Iron tourmaline powder: being first stirred by the modification of step S2. tourmaline powder with deionized water, is then added in advance
In the neopelex and sodium pyrophosphate mixed, regulation system pH value makes its pH value 10, and it is mixed that kaolin is added
Close, then mixture first carried out to stirring at low speed at 90 DEG C ball milling, ball milling speed 2000rpm recycles ball milling 4h, then again into
Row high-speed stirred ball milling, ball milling speed 3000rpm after recycling ball milling 2h, survey slurry partial size and then stop when partial size >=2800 mesh
Only ball milling obtains modified negative-ion slurry material；
Step S3. is dry: modified negative-ion slurry material obtained in step S2 is spray-dried, obtain modified negative-ion powder
Body.The condition of spray drying are as follows: inlet air temperature is 180 DEG C, and outlet temperature is 80 DEG C, air quantity 5m3/min。
The spherical powder of modified negative-ion obtained by embodiment 1-3 number for 1#, 2#, 3#, and according to the addition of 3% additive amount
It into coating, stirs evenly, obtains 1#, 2#, 3# coating sample, meanwhile, take unmodified dravite, elbaite and ferroelectricity gas
Stone number is 4#, 5#, 6#, is equally added in coating by 3% additive amount, stirs evenly, obtains 4#, 5#, 6# coating sample, so
After be tested for the property, examination criteria is " indoor according to HG/T 4109-2009 " anion function coating ", JC/T 1074-2008
Air-cleaning function coating material purifying property " it carries out, in addition increase stability test, by each coating sealing and standing one month
Afterwards, its stability is surveyed.Testing result is shown as described in Table 1.
1. the performance test results table of table
By table 1 it is found that the coating stabilization sex expression of the addition spherical powder of 1#-3# modified negative-ion is good, one is placed
Without sedimentation after month, not stratified, the negative aeroion amount of inducing is up to 12308/s.cm2, purifying formaldehyde performance is more than 75%.
And the coating for the tourmaline powder not being modified is added, it is layered after standing one month, illustrates that its stability is poor, and its air
The anion amount of inducing is respectively less than the spherical powder of modified negative-ion, and purifying formaldehyde performance is also below 70%, it is clear that its performance compared with
The difference of the spherical powder of modified negative-ion.
It, can according to the technique and scheme of the present invention and its hair it is understood that for those of ordinary skills
Bright design is subject to equivalent substitution or change, and all these changes or replacement all should belong to the guarantor of appended claims of the invention
Protect range.
Claims (9)
1. a kind of spherical powder of modified negative-ion, which is characterized in that the powder include: according to parts by weight tourmaline powder 80~
120 parts, 12~24 parts of composite modifier, 35~45 parts of filling additive, the composite modifier include organic modifiers and inorganic
Modifying agent, and the ratio of organic modifiers and inorganic modifier is 2:1.
2. the spherical powder of modified negative-ion according to claim 1, which is characterized in that the tourmaline powder is Mg tourmaline
Powder.
3. the spherical powder of modified negative-ion according to claim 1, which is characterized in that the organic modifiers include poly- third
One of olefin(e) acid sodium, polyacrylic acid potassium, neopelex.
4. the spherical powder of modified negative-ion according to claim 1, which is characterized in that the inorganic modifier includes poly
One of sodium phosphate, calgon and sodium pyrophosphate.
5. the spherical powder of modified negative-ion according to claim 1, which is characterized in that the filling additive includes hard charcoal
One of black, diatomite, kaolin.
6. a kind of spherical raw powder's production technology of modified negative-ion as described in any one in claim 1-5, which is characterized in that institute
State method the following steps are included:
Step S1. stock: tourmaline powder, organic modifiers, inorganic modifier and filling additive are taken according to the ratio, while pressing tourmaline
The proportion of powder and deionized water 1:8~10 removes ionized water；
The modification of step S2. tourmaline powder: first tourmaline powder and deionized water are stirred, is then added to and is pre-mixed
Composite modifier in, regulation system pH value makes its pH value 9~10, and be added filling additive mixing, then mixture is existed
80 DEG C~90 DEG C first carry out stirring at low speed ball milling, recycle 4~6h of ball milling, then carry out high-speed stirred ball milling again, and circulation ball milling 1~
After 2h, slurry partial size is surveyed, partial size >=2800 mesh then stops ball milling, obtains modified negative-ion slurry material；
Step S3. is dry: by modified negative-ion slurry material obtained in step S2 through drying, obtaining modified negative-ion powder.
7. the spherical raw powder's production technology of modified negative-ion according to claim 6, which is characterized in that in the step S2
Stirring at low speed ball milling speed is 1000~2000rpm, and the speed of high-speed stirred ball milling is 3000~4000rpm.
8. the spherical raw powder's production technology of modified negative-ion according to claim 6, which is characterized in that the drying steps
Including one of drying or being spray-dried.
9. the spherical raw powder's production technology of modified negative-ion according to claim 8, which is characterized in that the spray drying
Condition are as follows: inlet air temperature be 140 DEG C~180 DEG C, outlet temperature be 60 DEG C~80 DEG C, air quantity 5m3/min。
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Application publication date: 20191203 |