CN109517218A - A kind of modified dust collection powder and its preparation method and application - Google Patents
A kind of modified dust collection powder and its preparation method and application Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K9/08—Ingredients agglomerated by treatment with a binding agent
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- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/28—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
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Abstract
The invention discloses a kind of preparation methods of modified dust collection powder to be carried out surface chemistry coupling to the powder raw material that gathers dust and be neutralized modification with the chemical modifier of the compositions such as coupling agent and neutralizer, obtains modified dust collection powder.The modification dust collection powder that the present invention is prepared, the organic group of the one or more kinds of saturations of particle surface chemical bonding or unsaturated structure, increase the hydrophobicity of particle surface (activation index is greater than 0.95), the modified binding force gathered dust between powder particles and rubber matrix of enhancing, the strong basicity (pH=10) of dust collection powder is neutralized simultaneously, so that the dust collection powder being prepared is the neutral dust collection powder of pH=7-8.The method of the present invention has grain fineness range of choice wide (more than 400 mesh~3000 mesh with energy conservation and environmental protection, to the producing level high (> 90%) of dust collection powder, raw material dust collection powder, or 37 microns~4 microns or less), coupling agent dosage few (1-2%) and the advantages that be evenly distributed, modified dust collection powder obtained and rubber matrix compatibility are good, it can all replace calcium carbonate, part to replace talcum powder or carbon black in rubber product filling, be a kind of resource regeneration type high activity material at low cost, quality is excellent.
Description
Technical field
The invention belongs to rubber product filler processing technique field, it is related to a kind of modified dust collection powder and preparation method thereof and answers
With.
Background technique
Dust collection powder is that bauxite calcines discharged solid waste in aluminium processing industry, by it is different form, structure and
The dispersion of the particle composition of form.The main chemical compositions of dust collection powder are aluminium (45.39%), silicon (35.99%), potassium
(11.94%) oxide, a certain amount of iron (1.35%), titanium (1.22%), magnesium (0.84%), sodium (0.42%), calcium
(0.39%) oxide.The dust collection powder enormous amount of China's aluminium processing industry discharge, only in Luoyang, henan area, annual bauxite
Dust collection powder caused by calcining absolutely not is utilized just more than 150,000 tons.Currently, basic place of the aluminium processing industry to dust collection powder
Reason method is that a large amount of dust collection powders are piled up in grey field, land occupation resource；Or landfill disposal is carried out as rubbish, and these are filled out
The dust collection powder for the strong basicity buried can make the salinization of soil and hardened hardening, generate harm to vegetation growth, will cause sternly to water quality
Heavily contaminated (as shown in Figure 1).It, can if being sorted to bauxite calcining dust collection powder, being coupled the processing such as (surface is modified), neutralization
Dust collection powder is processed into the three grades product different with purposes by fineness difference.Wherein, (37~15 is micro- for fineness 400-800 mesh
Rice) dust collection powder, be used as plastic products filler special；The dust collection powder of fineness 1000-3000 mesh (13~4 microns) is used as rubber
Product filler special (instead of precipitated calcium carbonate or part talcum powder)；More than 3000 mesh of the fineness dust collection powder of (4 microns or less) is used
Make rubber product semi-reinforcing agent (being similar to white carbon black) and coating filler special.And not dust collection powder through processing, Zhi Nengyong
Make building materials raw material, such as cement filler or brick, economic value be not high.Therefore, reinforce the comprehensive development and utilization of dust collection powder, improve
Its economic benefit and added value are all very necessary no matter from the point of view of environmental protection, energy conservation or resource reutilization.
Due to containing the ingredients such as a large amount of performances stable silica, aluminium oxide, potassium oxide, inorganic hydrophilic in dust collection powder
Particle surface, the poor compatibility with the hydrophobicitys organic matrix such as rubber easily becomes the faying face of particle and polymeric matrix
The weak link of composite material；In addition, the fine size of dust collection powder, surface can be higher, is easy to produce reunion, is difficult in rubber matrix
In it is evenly dispersed, be restricted its application range, using effect is had a greatly reduced quality.If chemical modifier is directly in product of rubber and plastic
It is added in production, dosage is big, is unevenly distributed in particle surface, and time-consuming for stirring kneading process, energy consumption height and production technology
Or process equipment poor sealing causes fine grained to wave into atmosphere, to influence the effect of its filling and the appearance of product
And quality, such as rubber article bloom, mechanical strength decline, and seriously restrict modified dust collection powder large-scale production and
Popularization and use in rubber industry.Therefore, it is necessary to modify and improve its surface texture.Dust collection powder is coupled through coupling agent surface chemistry
With neutralize it is modified, hydrophobicity enhancing, dispersion stabilization improve, organic material in terms of have extensive use.So
And so far, there are no the applications that the surface chemical modification about dust collection powder is handled and its filled in rubber product.
Summary of the invention
It is an object of the present invention to change the status of dust collection powder landfill, pollution environment or low-end applications, a kind of modification is provided
The preparation method of dust collection powder by surface spray chemical coupling and neutralizes modified integral process processing using dust collection powder as raw material,
Modified dust collection powder is made.For potassium oxide content in dust collection powder, high, the easy moisture absorption is in strong basicity (pH value 10) to the method for the present invention
Feature specially uses neutralizer (unsaturated organic acid) and carries out neutralization modification to it, is different from other powder (such as carbonic acid
Calcium, flyash) only with coupling agent carry out surface chemical modification (Chinese patent literature CN101240095A, 102070794A,
102010535A etc.), this not only makes modified dust collection powder become the neutral dust collection powder of pH value 7-8, but also is modified in dust collection powder
Unsaturated group can also be with rubber matrix with Covalent bonding together, while playing the phase improved between dust collection powder filler and rubber matrix
The double action of capacitive and enhancing rubber product mechanical property.The method of the present invention is used in combination using coupling agent and neutralizer, dosage
(2-4%) is considerably less than the dosage (5-10%) of single coupling agent in other patent documents.It is modified made from the method for the present invention to receive
Dirt powder can all replace precipitated calcium carbonate or part that talcum powder, carbon black is replaced to be filled in rubber product as gum filler
Using.
The present invention provides a kind of preparation methods of modified dust collection powder, and chemical modification is added in the preparation process of dust collection powder
Agent carries out chemical coupling to dust collection powder and neutralizes modification, the modification dust collection powder can be obtained, wherein the chemistry
Modifying agent includes coupling agent, neutralizer and dispersing agent.
Wherein, the coupling agent: neutralizer: the mass ratio of dispersing agent is coupling agent: neutralizer: dispersing agent=(1-5):
(1-10): (0.2-2)；It preferably, is 1:1:0.6.
In the present invention, the mass ratio of the chemical modifier and dust collection powder is chemical modifier: dust collection powder=(1-10):
(50-200)；It preferably, is 3:100.
Wherein, the coupling agent is arbitrary one or more kinds of mixed in silane, Aluminate, titanate esters, zirconate etc.
It closes, it is preferable that be silane, titanate esters；Its dosage is the 0.5-5% of the dust collection powder weight, it is preferable that is 1-3%.
Wherein, the neutralizer is fumaric acid, oleic acid, sorbic acid, linoleic acid, linolenic acid, eleostearic acid, arachidonic acid
Arbitrary one or more kinds of mixing in, it is preferable that be sorbic acid, linolenic acid, eleostearic acid, arachidonic acid；It is used
Amount is the 0.5-10% of the dust collection powder weight, it is preferable that is 1-5%.
Wherein, the dispersing agent is solvent naphtha, alcohol, ethyl acetate, triethanolamine, epoxidized soybean oil, allyloxy ring
Arbitrary one or more kinds of mixing in Ethylene Oxide, glycidol ether etc., it is preferable that be alcohol, triethanolamine, allyloxy
Propylene oxide, glycidol ether；Its dosage is the 0.2-5% of the dust collection powder weight, it is preferable that is 0.5-2%.
In the present invention, the dust collection powder is selected from fine grained dust collection powder, ultra-fine grain dust collection powder and fines dust collection powder etc.
One of or it is a variety of；It preferably, is fines dust collection powder.
Wherein, the partial size of the fine grained dust collection powder is 400-800 mesh (37~15 microns)；It preferably, is 800 mesh (15
Micron).
Wherein, the partial size of the ultra-fine grain dust collection powder is 1000-3000 mesh (13~4 microns)；It preferably, is 3000 mesh
(4 microns).
Wherein, the partial size of the fines dust collection powder is 3000 mesh or more (4 microns or less)；It preferably, is 3500 mesh
(3.5 microns).
The present invention is handled while being carried out to " chemical coupling " and " neutralize and be modified " of dust collection powder.
What chemical coupling of the present invention and neutralization modification were preferably carried out by spray pattern.
The present invention further includes stirring, mediates, heating, is dried step in the preparation process of dust collection powder.
In the present invention, the temperature of the heating is 50-100 DEG C；It preferably, is 80 DEG C.
In the present invention, the time of the heating is 10-60 minutes；Preferably, it is 10-40 minutes.
In the present invention, the temperature of the drying is 50-100 DEG C；It preferably, is 80 DEG C.
In the present invention, the time of the drying is 20-30 minutes；Preferably, it is 30 minutes.
In the present invention, the drying is dried with hot wind or microwave.
In the present invention, the condition of the stirring are as follows: 50-300 revs/min, 10-60 minutes；It preferably, is 100 revs/min, 40
Minute.
In a specific embodiment: firstly, containing coupling agent, neutralizer and dispersing agent to dust collection powder sprinkling at room temperature
Chemical modifier misty dispersion liquid, and open stirring, kneading, heating device simultaneously；Then it heats about after ten minutes, i.e., it is warm
It when degree is warming up to 80 DEG C, persistently stirs, mediate at this temperature and is 30 minutes dry.
The present invention is using the misty dispersion for first spraying the chemical modifier containing coupling agent, neutralizer and dispersing agent at room temperature
Liquid is simultaneously stirred, is mediated, heating simultaneously, and then, stirring, kneading, dry scheme prepare modified dust collection powder, master under temperature constant state
Syllabus be to make modifying agent adequately, uniformly contact powder granule.Otherwise, it will cause modified imperfect, a part of powder
It is not modified, influences the mechanical property of its using effect and rubber product.The present invention carries out spraying purpose in container top,
On the one hand dust collection powder powder fugitive dust can be prevented, guarantees that modifying agent is complete, be uniformly dispersed in all dust collection powder particle surfaces,
Its significant effect will be mixed better than directly in dust collection powder incorporation liquid；On the other hand, the usage amount of dispersing agent is reduced.Separately
Outside, the step of present invention is using heating can not only strengthen the coupling of dust collection powder particle surface progress and the chemical reaction of neutralization, but also rise
To dry effect.
The present invention is being stirred, is being mediated about after ten minutes, and equipment is switched on electric heating, rises to 80 DEG C (about 10 points from room temperature
Clock), hereafter the 80 of 20-30 minutes DEG C heated at constant temperature, drying is also along with stirring, kneading.
In the present invention, the kneading refers to agitation of the powder granule under the effect of special-shaped agitating paddle.
In the present invention, " the spraying chemistry coupling processing " refers to multiple meterings by being mounted on container top different angle
The chemical modifier (misty dispersion liquid) containing coupling agent, neutralizer and dispersing agent is directly sprayed in spray head synchronization to particle surface.
In the present invention, " the neutralizing modification " refers to using neutralizer (unsaturated organic acid) to dust collection powder neutral and alkali
Component potassium oxide carries out chemical neutralization.
In the present invention, the spraying chemical coupling and neutralization modification carry out preferably in kneader, by being arranged in
It states the spray head at the top of kneader and directly sprays chemical modifier to the surface of the dust collection powder.
Wherein, at least one spray head is set at the top of the kneader；It preferably, is two to three spray heads.
Wherein, the kneader keeps air-tight state in use.
In the present invention, further, spraying chemical coupling is carried out in the dust collection powder surface in kneader and is changed
Property processing while, be stirred, mediate in 50-100 DEG C, heating 10-60 minutes, for strengthening coupling agent and dust collection powder
The chemical bonding of particle surface and the effect of coupled action；Preferably, it is stirred, mediates, heats in 80 DEG C.
In the present invention, chemical coupling is carried out to the dust collection powder surface and neutralizes modification, is to utilize dust collection powder surface
The hydroxyl group being rich in, can be with coupling agent such as monoalkoxy fatty acid type titanate esters [i-C3H7OTi(OCOR)3] and neutralizer hair
Biochemical bonding action, and coupling agent and neutralizer packet are attached to the surface for the powder particles that gather dust, between modified dust collection powder and rubber
Chemical bridged bond is formed, makes coupling agent and neutralizer that there is surface modification effect.Shown in its coupling mechanism such as following formula (1):
In the present invention, further, the neutralizer is unsaturated organic acid, strong basicity dust collection powder can be adjusted to neutrality
Dust collection powder.
Wherein, the pH value of the strong basicity dust collection powder is 10.
Wherein, the pH value of the neutral dust collection powder is 7-8.
The present invention also provides modified dust collection powder prepared by the above method, particle surface be chemically bonded it is a kind of or
The organic group of more than one saturations or unsaturated structure, hydrophobicity is strong (activation index is greater than 0.95), with organic polymer it
Between Compatibility improvement；The carboxyl of neutralizer can be total to the metal bonding of particle surface, unsaturated group with the matrix of rubber
Valence combines, and enhances the active force between inorganic dust collection powder and organic rubber, can be used as the filler material of rubber product, enhances composite wood
The mechanical property of material.
In addition, activation index is greater than 0.95, show that modifying agent of the present invention is evenly distributed in dust collection powder particle surface, all
Grain is all fully modified.
In the present invention, the organic group of the saturation or unsaturated structure is one of alkyl, long alkenyl etc. or more
Kind；It preferably, is diene, triolefin, tetraene group.
The present invention also provides the modified dust collection powders in rubber product, plastic products, coating, ink, paint etc.
Using.
Compared with prior art, the beneficial effect comprise that the present invention carries out chemistry occasionally to the surface of dust collection powder
Connection and neutralization, which are modified, to be carried out in Sealing Arrangement, and no dust waves into atmosphere, is one without the milled processed of high energy consumption
The energy-saving and environment-friendly production technology of kind.Surface chemistry coupling is carried out to dust collection powder using spray art and neutralizes modification, is realized
Coupling and the modified integration operation of neutralization, can optimize equipment and coupling agent and neutralizer is made to be dispersed in dust collection powder
Grain surface provides guarantee to reduce dosage, satisfaction coupling and the filling effect of coupling agent and neutralizer.Using surface of the present invention
The modification dust collection powder that spraying chemical coupling and neutralization modified technique integrated treatment obtain, output is big, up to kiloton to ten thousand
Tonne production scale, with industrial application demonstration effect and promotional value.
For the present invention by being classified to dust collection powder, available a variety of fine-grained fractions can satisfy variety classes
Demand with the rubber product of quality to filler material.Modified dust collection powder produced by the present invention is particularly suitable for contour as cable
The filler material of quality rubber product can substitute precipitated calcium carbonate, nanometer calcium carbonate or talcum powder.In addition, the present invention will be superfine
The dust collection powder of granularity (more than 3000 mesh or 4 microns or less), after modification, can part substituting for carbon black, as filling out
Charge has half reinforcing effect to rubber product, greatly improves the economic value of dust collection powder, is truly realized and makes the best use of everything, become
Waste be changed into values.
Detailed description of the invention
Fig. 1 dust collection powder accumulates (a) and landfill disposal outdoor scene (b).
Specific embodiment
In conjunction with following specific embodiments, the present invention is described in further detail, and of the invention protects content not limit to
In following embodiment.Without departing from the spirit and scope of the invention, those skilled in the art it is conceivable that variation and excellent
Point is all included in the present invention, and using appended claims as protection scope.Implement process of the invention, condition,
Reagent, experimental method etc. are among the general principles and common general knowledge in the art, this hair in addition to what is specifically mentioned below
It is bright that there are no special restrictions to content.
Rubber product, formula are as follows: rubber is made as gum filler in modified dust collection powder obtained in the process of the present invention
15-20 parts, dust collection powder 10-30 parts modified, 2-6 parts of carbon black, 2-5 parts of activated magnesia, 0.2-1 parts of paraffin, tri trimellitate is pungent
2-4 parts of ester (TOTM), 0.5-1 parts of rubber oil, two -0.5-1 parts of (t-butylperoxyisopropyl) benzene (DCP), triallyl is different
0.3-0.6 parts of cyanurate (TAIC), 0.5-1 parts of zinc oxide, 0.2-0.5 parts of stearic acid, 0.2-0.5 parts of anti-aging agent.
In above-mentioned formula, the rubber are as follows: chlorinated polyethylene rubber, natural rubber, butadiene-styrene rubber, butadiene rubber, neoprene
The mixing of one or more of rubber, butyl rubber, nitrile rubber, isoprene rubber, ethylene-propylene diene copolymer.
In above-mentioned formula, modified dust collection powder is made by the method for the present invention: 400-800 mesh, 1000-3000 mesh or 3000 mesh
One of the powder particles that gather dust above kind or two or more mixing.
Embodiment 1
The fine grained dust collection powder of 800 mesh (15 microns) granularity is injected in closed malaxator through pipeline, starts stirring, together
When it is (per ton to fine grained dust collection powder surface directly spraying modified dose of misty dispersion liquid from being mounted on the metering spray head at the top of malaxator
Dust collection powder is big with 10 kilograms of silane coupling agent and titanate coupling agent, 10 kilograms of neutralizers and 5 kilograms of solvent naphthas and epoxy
The mixed liquor of soya-bean oil), and packed after cooling in 80 DEG C of heating, kneading processing 30 minutes in kneader, it is modified to obtain fine grained
Dust collection powder can be used as filler for plastic product.
Embodiment 2
The ultra-fine grain dust collection powder of 3000 mesh (4 microns) granularity is injected in closed malaxator through pipeline, starts stirring,
Simultaneously from being mounted on the metering spray head at the top of malaxator to ultra-fine grain dust collection powder surface directly spraying modified dose of misty dispersion liquid
(dust collection powder per ton 15 kilograms of titanate coupling agent and aluminate coupling agent, 15 kilograms of neutralizers, 8 kilograms of alcohol, three second
The mixed liquor of hydramine and allyloxy propylene oxide), and in 80 DEG C of heating, kneading processing 30 minutes in kneader, after cooling
Packaging obtains the modified dust collection powder of ultra-fine grain, can be used as medium-to-high grade rubber filler product.
Embodiment 3
The fines dust collection powder of 3500 mesh (3.5 microns) granularity is injected in closed malaxator through pipeline, starts and stirs
It mixes, while from being mounted on the metering spray head at the top of malaxator to the directly spraying modified dose of misty dispersion of fines dust collection powder surface
Liquid (dust collection powder per ton with 20 kilograms of zirconium ester coupling agent and aluminate coupling agent, 20 kilograms of neutralizers, 12 kilograms of alcohol and
The mixed liquor of glycidol ether), and pack, obtain superfine after cooling in 80 DEG C of heating, kneading processing 30 minutes in kneader
Granule modified dust collection powder, surface are modified agent covering completely, have half reinforcing effect, can be used as the production of high-quality rubber filler
Product and coating filler special.
Embodiment 4
Rubber product is prepared, is formulated are as follows: 16 parts of chlorinated polyethylene rubber, 8 parts of precipitated calcium carbonate, 20 parts of talcum powder, charcoal
Black 5.2 parts, 2.4 parts of activated magnesia, 0.4 part of paraffin, 2.56 parts of trioctyl trimellitate (TOTM), 0.8 part of rubber oil, peroxidating two is different
0.6 part of propyl benzene, 0.56 part of triallyl isocyanurate, 0.7 part of zinc oxide, 0.2 part of stearic acid, 0.2 part of anti-aging agent.It will be above-mentioned
Each material of recipe ingredient amount is added in kneading machine, is kneaded 7 minutes at 90 DEG C, then mill 2 minutes to sheet, in 170 DEG C
Vulcanize 12 minutes under 15MPa, the tensile strength of obtained sample is 6.03MPa, elongation at break 567%.
Embodiment 5
Rubber product is prepared, the fine grained modified dust collection powder (800 mesh, 8 parts) being prepared with the embodiment of the present invention 1 is whole
Precipitated calcium carbonate is substituted, and does not add stearic acid, remaining component and sampling are obtained with the embodiment of the present invention 4 in formula
The tensile strength of sample is 6.28MPa, elongation at break 467%.
Embodiment 6
Rubber product is prepared, the ultra-fine grain being prepared with the embodiment of the present invention 2 is modified dust collection powder (3000 mesh, 8 parts)
Part substitution talcum powder (40%), and stearic acid is not added, remaining component and sampling are obtained with embodiment 4 in formula
The tensile strength of sample is 6.36MPa, elongation at break 508%.
Embodiment 7
Rubber product is prepared, and the modified dust collection powder of the fines being prepared with the embodiment of the present invention 3 (3500 mesh, 2.08
Part) part alternative carbon black (40%), and stearic acid is not added, remaining component and sampling are obtained with embodiment 4 in formula
The tensile strength of sample is 6.17MPa, elongation at break 585%.
Embodiment 8
Rubber product is prepared, the fines being prepared with the embodiment of the present invention 3 are modified dust collection powder (3500 mesh, 8 parts)
Replacing whole precipitated calcium carbonate, and stearic acid is not added, remaining component and sampling are the same as the embodiment of the present invention 4, institute in formula
The tensile strength that sample is made is 7.15MPa, elongation at break 602%.
The result of comparing embodiment 4-8 is as it can be seen that the variable grain being prepared with 1-3 preparation method of the embodiment of the present invention is thin
The modification dust collection powder of degree, chemically modified processing increase surface active groups, make compatible between dust collection powder and rubber matrix
Property and binding force increase, its replacing whole precipitated calcium carbonate can be used, the tensile strength of gained rubber product has apparent increase
(20%)；Partially substitution talcum powder or carbon black, the tensile strength of gained rubber product also there can also be a degree of increase
(5% or so).This shows that modified dust collection powder is a kind of gum filler of high-quality, can part alternative carbon black, there is half reinforcement
Effect, to improve the physical mechanical property of rubber product.
Protection content of the invention is not limited to above embodiments.Without departing from the spirit and scope of the invention, originally
Field technical staff it is conceivable that variation and advantage be all included in the present invention, and with appended claims be protect
Protect range.
Claims (12)
1. a kind of preparation method of modified dust collection powder, which is characterized in that chemical modifier is added in the preparation process of dust collection powder,
Chemical coupling is carried out to dust collection powder and neutralizes modification, obtains the modified dust collection powder；Wherein, the chemical modifier includes
Coupling agent, neutralizer and dispersing agent.
2. preparation method as described in claim 1, which is characterized in that the chemical coupling is to pass through spray with neutralization modification
What mist mode carried out.
3. preparation method as described in claim 1, which is characterized in that the dust collection powder is selected from fine grained dust collection powder, ultra-fine
Grain one of dust collection powder and fines dust collection powder or a variety of.
4. preparation method as claimed in claim 3, which is characterized in that the partial size of the fine grained dust collection powder is 400-800 mesh；
The partial size of the ultra-fine grain dust collection powder is 1000-3000 mesh；The partial size of the fines dust collection powder is 3000 mesh or more.
5. preparation method as described in claim 1, which is characterized in that the spraying chemical coupling and neutralize modification be
It is carried out in kneader, directly sprays institute to the surface of the dust collection powder from least one spray head at the top of the kneader is arranged in
State chemical modifier.
6. preparation method as described in claim 1, which is characterized in that further include stirring in the preparation process of the dust collection powder
It mixes, mediate, heat, be dried step.
7. preparation method as claimed in claim 6, which is characterized in that the condition of the stirring is 50-300 revs/min, 10-60
Minute；And/or the temperature of the heating is 50-100 DEG C；And/or the temperature of the drying is 50-100 DEG C；
And/or the drying is dried with hot wind or microwave.
8. preparation method as described in claim 1, which is characterized in that the coupling agent is silane, Aluminate, titanate esters, zirconium
Any one or two or more mixing of acid esters；And/or the neutralizer is fumaric acid, oleic acid, sorbic acid, linoleic acid, flax
Any one or two or more mixing of oleic acid, eleostearic acid, arachidonic acid；And/or the dispersing agent be solvent naphtha, alcohol,
Ethyl acetate, triethanolamine, epoxidized soybean oil, allyloxy propylene oxide, glycidol ether any one or it is two or more
Mixing；And/or the coupling agent: neutralizer: the mass ratio of dispersing agent is coupling agent: neutralizer: dispersing agent=(1-5): (1-
10): (0.2-2).
9. preparation method as described in claim 1, which is characterized in that the chemical modifier and the mass ratio of dust collection powder are to change
Learn modifying agent: dust collection powder=(1-10): (50-200).
10. a kind of modification dust collection powder being prepared by any one the method for claim 1-9.
11. modified dust collection powder as claimed in claim 10, which is characterized in that the modified dust collection powder is in pH value=7-8
Property dust collection powder.
12. modified dust collection powder answering in rubber product, plastic products, coating, paint, ink as claimed in claim 10
With.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Application publication date: 20190326 |