CN105400297B - A kind of mill base and preparation method thereof - Google Patents
A kind of mill base and preparation method thereof Download PDFInfo
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- CN105400297B CN105400297B CN201510996077.3A CN201510996077A CN105400297B CN 105400297 B CN105400297 B CN 105400297B CN 201510996077 A CN201510996077 A CN 201510996077A CN 105400297 B CN105400297 B CN 105400297B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D17/00—Pigment pastes, e.g. for mixing in paints
- C09D17/004—Pigment pastes, e.g. for mixing in paints containing an inorganic pigment
- C09D17/005—Carbon black
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D17/00—Pigment pastes, e.g. for mixing in paints
- C09D17/001—Pigment pastes, e.g. for mixing in paints in aqueous medium
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
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Abstract
The present invention provides a kind of mill bases, are prepared by the raw material for including following components:Water, charcoal blacks, dispersant and functional aid;The charcoal blacks are made of high-carbon black pigment, middle colour carbon black and rubber black;The dispersant includes blocked phosphoric acid ester dispersant, polyesters dispersant and esters of acrylic acid dispersant;The functional aid includes propylene glycol, glycerine, polyethylene glycol, ammonium hydroxide, triethanolamine, pearl powder and alchlor.The application makes mill base have preferable stereoscopic effect when applying by selecting specific colour carbon black, dispersant and functional aid.Present invention also provides the preparation methods of the mill base, can further improve the stereoscopic effect of mill base.
Description
Technical field
The present invention relates to technical field of fine more particularly to a kind of mill base and preparation method thereof.
Background technology
Mill base is to be dispersed in the semi-products formed in paint vehicle by pigment or pigment and filler material.According to molten used by mill base
The difference of agent, mill base are divided into aqueous color paste, oil pastes and resin mill base;Mill base with pure oil for adhesive, referred to as oiliness color
Slurry;Using resin paint vehicle as the mill base of adhesive, referred to as resin mill base;The face formed using water as medium addition surfactant-dispersed
Slurry, referred to as aqueous color paste.
With the rapid development of building industry, industry is intended to efficient, low carbon development by color.And as the weight of coating industry
Branch is wanted, aqueous color paste shoots up under the drive of industry, house property, furniture, household electrical appliances and building materials household to consume mainstream,
It is played an increasingly important role in modern house finishing, home decoration life.
Mill base of the prior art is usually that water, dispersant and pigment are ground the color after reaching certain fineness by disperseing
Slurry, this kind of mill base are applied in the Related products such as coating, and the color effect of performance is plane effect.The novel product of coating industry
Solid paint is to reach its stereoscopic effect in a manner that coating is thickened, repeatedly constructed, but effect is not apparent.
Invention content
Present invention solves the technical problem that it is to provide a kind of mill base with stereoscopic effect and preparation method thereof.
In view of this, this application provides a kind of mill bases, are prepared by the raw material for including following components:Water, carbon black face
Material, dispersant and functional aid;
The charcoal blacks are made of high-carbon black pigment, middle colour carbon black and rubber black;
The dispersant includes blocked phosphoric acid ester dispersant, polyesters dispersant and esters of acrylic acid dispersant;
The functional aid includes propylene glycol, glycerine, polyethylene glycol, ammonium hydroxide, triethanolamine, pearl powder and tri-chlorination
Aluminium.
Preferably, the dispersant is 28wt%~60wt% of the charcoal blacks, and the functional aid is described
100wt%~130wt% of charcoal blacks.
Preferably, the mass ratio of the high pigment mill base, middle pigment mill base and the rubber black is (15~25):(1~
10):1。
Preferably, the specific surface area of the charcoal blacks is 50~500m2/ g, oil factor≤140cm3/100g。
Preferably, the weight average molecular weight of the dispersant is 2000~10000.
Present invention also provides a kind of preparation methods of mill base, include the following steps:
Water, blocked phosphoric acid ester dispersant, triethanolamine, propylene glycol, polyethylene glycol and high-carbon black pigment are mixed, obtained
To the first mixture;
By water, blocked phosphoric acid ester dispersant, polyesters dispersant, triethanolamine, propylene glycol, glycerine and middle pigment
Carbon black mixes, and obtains the second mixture;
Water, esters of acrylic acid dispersant, glycerine, polyethylene glycol and rubber black are mixed, obtain third mixture;
It is mixed after first mixture is ground with second mixture, the 4th mixture is obtained after grinding;
It is mixed, then mixed with the 4th mixture with pearl powder, alchlor and ammonium hydroxide after the third mixture is ground,
Obtain mill base.
Preferably, the fineness of first mixture is 3~5 μm, and the fineness of second mixture is 3~5 μm, described
The fineness of third mixture is 3~5 μm.
Preferably, the average grain diameter of the 4th mixture is less than 0.85 μm.
Preferably, the grain size of the pearl powder is 2~100 μm.
This application provides a kind of mill bases, are prepared by the raw material for including following components:Water, charcoal blacks, dispersion
Agent and functional aid;The charcoal blacks are made of high-carbon black pigment, middle colour carbon black and rubber black;The dispersant packet
Include blocked phosphoric acid ester dispersant, polyesters dispersant and esters of acrylic acid dispersant;The functional aid includes the third two
Alcohol, glycerine, polyethylene glycol, ammonium hydroxide, triethanolamine, pearl powder and alchlor.The application by using different pigments charcoal
The black pigment as mill base, and by adding pearl powder in mill base, and make mill base that there is preferable stereoscopic effect.
Further, the application, by the way that raw material is mixed according to certain sequence, makes pearl during mill base is prepared
Light powder can give full play to its stereoscopic effect, and the stereoscopic effect for finally making mill base is preferable.
Specific embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described with reference to embodiment, still
It should be appreciated that these descriptions are only for the feature and advantage that further illustrate the present invention rather than to the claims in the present invention
Limitation.
The embodiment of the invention discloses a kind of mill bases, are prepared by the raw material for including following components:Water, charcoal blacks,
Dispersant and functional aid;
The charcoal blacks are made of high-carbon black pigment, middle colour carbon black and rubber black;
The dispersant includes blocked phosphoric acid ester dispersant, polyesters dispersant and esters of acrylic acid dispersant;
The functional aid includes propylene glycol, glycerine, polyethylene glycol, ammonium hydroxide, triethanolamine, pearl powder and tri-chlorination
Aluminium.
The application enables mill base to have vertical by selecting specific pigment, dispersant and functional aid in mill base
Body effect.
According to the present invention, the charcoal blacks in the mill base are made of high-carbon black pigment, middle colour carbon black and rubber black;
It is well known to those skilled in the art that wherein the particle size range of high-carbon black pigment, which is 9~17nm, middle colour carbon black and rubber black,
Carbon black, the application is without particularly limiting.The mass ratio of herein described high-carbon black pigment, middle colour carbon black and rubber black
Preferably (15~25):(1~10):1, in embodiment preferably 16:4:1.The application is not homochromy by being added in mill base
The carbon black of element allows mill base to have preferable stereoscopic effect.The specific surface area of the charcoal blacks is preferably 50~500m2/
G, oil factor preferably≤140cm3/ 100g, the preferably carbon black with above-mentioned parameter make mill base with different blackness, tinting strength, tinting power and
Covering power.
Dispersant in the application mill base includes blocked phosphoric acid ester dispersant, polyesters dispersant and esters of acrylic acid
Dispersant.Specifically, phosphoric acid ester dispersant has good dispersion effect to carbon black with esters of acrylic acid dispersant and has
Film-formation result, while phosphoric acid ester dispersant can greatly improve brightness, esters of acrylic acid dispersant improves blackness, polyesters dispersion
Agent is played the role of stablizing three-dimensional system;When blocked phosphoric acid ester dispersant is very little, high-carbon black pigment and middle colour carbon black it
Between without larger difference, influence whether visual effect, while the versatility of mill base compatibility can be reduced;It will appear storage too much
State labile;Esters of acrylic acid dispersant is not also very little, and the black surface of rubber otherwise can be made unglazed, influence the solid of pearl powder
Effect;The effect of middle colour carbon black is influenced whether too much.The weight average molecular weight of the dispersant is preferably 2000~10000.Institute
Functional aid is stated to include:Propylene glycol, glycerine, polyethylene glycol, ammonium hydroxide, triethanolamine, pearl powder and alchlor.Wherein,
Propylene glycol can adjust evaporation rate as antifreezing agent, solvent;The glycerine mainly adjusts the evaporation rate of mill base;
The polyethylene glycol can improve dispersibility and compatibility as solvent, moisturizer;The ammonium hydroxide and triethanolamine, which have, to be adjusted
The effect of mill base pH;The pearl powder can improve the stereoscopic effect of mill base, and grain size is preferably 2~100 μm;The alchlor
The effect of pearl powder can be improved.Herein described mill base further includes wetting agent, and the wetting agent is ripe for those skilled in the art
Know that there is preferably alcohol ether series lubricant agent;The amount of wetting agent cannot be too many, otherwise influences whether water resistance, is allowed to be deteriorated, and increases
The foam for adding system or the hydrophilic and oleophilic for system occur are uneven;Influence whether tinting strength, tinting power and color development performance very little.
Content of the content of herein described lubricant in the mill base be less than 2wt%, preferably 0.5wt%~
1.1wt%;Content of the content of the propylene glycol in the mill base is less than 10wt%, preferably 4wt%~8.9wt%;Institute
Content of the content of glycerine in the mill base is stated less than 10wt%, preferably 4wt%~9wt%;The polyethylene glycol
Content of the content in the mill base is less than 20wt%, preferably 5wt%~15wt%;The content of the ammonium hydroxide is in the mill base
In content be 1wt%~4wt%;Content of the content of the alchlor in the mill base is 1wt%~4wt%;Institute
Content of the content of colourless pearl powder in the mill base is stated less than 5wt%, preferably 1wt%~3.5wt%.
Herein described dispersant is preferably 28wt%~60wt% of the charcoal blacks, and the functional aid is preferred
100wt%~130wt% for the charcoal blacks.
Present invention also provides the preparation methods of the mill base, include the following steps:
Water, blocked phosphoric acid ester dispersant, triethanolamine, propylene glycol, polyethylene glycol and high-carbon black pigment are mixed, obtained
To the first mixture;
By water, blocked phosphoric acid ester dispersant, polyesters dispersant, triethanolamine, propylene glycol, glycerine and middle pigment
Carbon black mixes, and obtains the second mixture;
Water, esters of acrylic acid dispersant, glycerine, polyethylene glycol and rubber black are mixed, obtain third mixture;
It is mixed after first mixture is ground with second mixture, the 4th mixture is obtained after grinding;
It is mixed, then mixed with the 4th mixture with pearl powder, alchlor and ammonium hydroxide after the third mixture is ground,
Obtain mill base.
During mill base is prepared, the application is first by water, blocked phosphoric acid ester dispersant, triethanolamine, the third two
Alcohol, polyethylene glycol and high-carbon black pigment mixing, obtain the first mixture;Specifically:By water, blocked phosphoric acid ester dispersant,
Wetting agent, triethanolamine, propylene glycol and polyethylene glycol mixing, disperse 5~10min in the case where rotating speed is 500~700r/min;Again plus
Enter high pigment mill base, disperse 100~150min in the case where rotating speed is 1000~1400r/min, obtain first that fineness is 3~5 μm
Mixture.Meanwhile the second mixture is prepared, specially:By water, blocked phosphoric acid ester dispersant, polyesters dispersant, wetting
Agent, triethanolamine, propylene glycol, glycerine mixing, disperse 5~10min in the case where rotating speed is 500~700r/min;Add middle color
Plain carbon black disperses 100~150min in the case where rotating speed is 1000~1400r/min, obtains the second mixture that fineness is 3~5 μm.
Meanwhile third mixture is prepared, specially:Water, esters of acrylic acid dispersant, glycerine, polyethylene glycol are mixed, are in rotating speed
Disperse 5~10min under 500~700r/min;Add rubber black, rotating speed for dispersion 100 under 1000~1400r/min~
150min obtains the third mixture that fineness is 3~5 μm.
After the completion of the preparation of first mixture, the second mixture and third mixture, what the application was then mixed
Process mixes with the second mixture after the first mixture is ground, the 4th mixture is obtained after grinding.Specifically:By first
Mixture disperses 30~50min under 2000~2500r/min, obtains the 4th mixture that average grain diameter is 0.65 μm.
The application will finally mix after third mixture grinding with pearl powder, alchlor and ammonium hydroxide, then with the 4th
Mixture mixes, and obtains mill base.
Herein described color will use the above method to prepare, and be conducive to further improve the stereoscopic effect of mill base.
Herein described mill base reaches that blackness is different, gloss is different, refraction is different by dispersion, grinding and post processing
Effect, while pearl powder can give the pattern of decorative pattern, to reach well arranged and figuratum mill base, this mill base should be in coating etc.
In industry, its structure will not be destroyed due to the dispersion of coating.
For a further understanding of the present invention, with reference to embodiment to mill base provided by the invention and preparation method thereof progress
It is described in detail, protection scope of the present invention is not limited by the following examples.
Embodiment 1
Table 1 prepares the formula table of each component of mill base for embodiment 1, and mill base is prepared according to the content of 1 each component of table.
1) it is weighed by the quantity of formula 1, by deionized water, dispersant 1, wetting agent, triethanolamine, propylene glycol, poly- second two
Alcohol is added in dispersion cylinder, and 10min is disperseed under 600r/min, and property adds in high-carbon black pigment again, is divided under 1200r/min
120min is dissipated, obtains mixture of the fineness at 3~5 μm;
2) it is weighed by the quantity of formula 2, by deionized water, dispersant 1, dispersant 2, wetting agent, triethanolamine, the third two
Alcohol, glycerine are added in dispersion cylinder, under 600r/min, disperse 10min, colour carbon black during property adds in again,
Disperse 120min under 1200r/min, obtain mixture of the fineness at 3~5 μm;
3) it is weighed by the quantity of formula 3, deionized water, dispersant 3, wetting agent, glycerine, polyethylene glycol is added to point
It dissipates in cylinder, 10min is disperseed under 600r/min, disposably adds in rubber black, disperses 120min under 1200r/min, obtains
Mixture of the fineness at 3~5 μm;
4) mixture of step 1) is added in grinder, grinds 45min under 2300r/min, obtain average grain diameter
Mixture less than 0.65 μm then in the material for adding in step 2), grinds 30min under 1900r/min, obtains average grain diameter
Mixture less than 0.85 μm;
5) material of step 3) is added in grinder, grinds 40min under 2300r/min, it is small to obtain average grain diameter
In 0.65 μm of mixture;
6) pearl powder and alchlor of package formula 4 after being mixed with the mixture of step 5) with ammonium hydroxide;
7) the pearly-lustre mill base of step 6) is added in the mixture of step 4, is uniformly dispersed, obtains mill base.
The tables of data (parts by weight) of the component of mill base prepared by 1 embodiment 1 of table
Raw material | Formula 1 | Formula 2 | Formula 3 | Formula 4 |
Deionized water | 250.0 | 140.0 | 40.0 | |
Blocked phosphoric acid ester dispersant | 80.0 | 20.0 | ||
Polyesters dispersant | 8.0 | |||
Esters of acrylic acid dispersant | 6.0 | |||
Wetting agent | 4.0 | 2.0 | ||
Triethanolamine | 25.0 | 5.0 | ||
Propylene glycol | 10.0 | 40.0 | ||
Glycerine | 15.0 | 5.0 | ||
Polyethylene glycol | 60.0 | 20.0 | ||
Ammonium hydroxide | 20.0 | |||
High-carbon black pigment | 160.0 | |||
Middle colour carbon black | 40.0 | |||
Rubber black | 10.0 | |||
Alchlor (50%) | 20.0 | |||
Colourless pearl powder | 20.0 |
More than experimental products have in water-based acrylic resin, waterborne polyurethane resin, styrene-acrylic emulsion and pure-acrylic emulsion
There are good color developing and compatibility (no to flocculate, without loss of gloss, colourless silk, fogless shadow), conventional mill base is in more than resin or lotion
It will appear consistency problem, phenomenon is shown as:Loss of gloss has mist shadow, not black or color silk.
It is simultaneously 15 in the mass ratio of resin or lotion and mill base:There is preferable three-dimensional sense when 1;
Above-mentioned formula is the formula after optimization, and stereoscopic effect is more apparent, when the amount for increasing rubber black, colourless pearly-lustre
Powder cannot completely adsorb rubber black, and rubber black is caused to enter in other two carbon blacks, influences gloss and blackness;Otherwise nothing
Color pearl powder can adsorb other carbon blacks, and the blackness for causing pearly-lustre pearl is close with other, and stereoscopic effect is not strong;
During as primary colors, resin or lotion:The mass ratio of mill base is 15:1, using spraying (load will big) or roller coating
Mode can obtain preferable three-dimensional and visual effect;During as light color, the effect of the mill base and the effect one of common mill base
It causes.
Embodiment 2
Preparation method is same as Example 1, difference lies in:The content of component is had any different, as shown in table 2.
Embodiment 3
Preparation method is same as Example 1, difference lies in:The content of component is had any different, as shown in table 3.
The tables of data (parts by weight) of the component of mill base prepared by 2 embodiment 2 of table
Raw material | Formula 1 | Formula 2 | Formula 3 | Formula 4 |
Deionized water | 250.0 | 140.0 | 40.0 | |
Blocked phosphoric acid ester dispersant | 80.0 | 20.0 | ||
Polyesters dispersant | 8.0 | |||
Esters of acrylic acid dispersant | 6.0 | |||
Wetting agent | 4.0 | 2.0 | ||
Triethanolamine | 25.0 | 5.0 | ||
Propylene glycol | 10.0 | 40.0 | ||
Glycerine | 15.0 | 5.0 | ||
Polyethylene glycol | 60.0 | 20.0 | ||
Ammonium hydroxide | 20.0 | |||
High-carbon black pigment | 170.0 | |||
Middle colour carbon black | 30.0 | |||
Rubber black | 10.0 | |||
Alchlor (50%) | 20.0 | |||
Colourless pearl powder | 20.0 |
The effect of embodiment 2 is similar to Example 1, but pearl powder can arrange out some decorative patterns.
The tables of data (parts by weight) of the component of mill base prepared by 3 embodiment 3 of table
Raw material | Formula 1 | Formula 2 |
Deionized water | 250.0 | 140.0 |
Blocked phosphoric acid ester dispersant | 80.0 | 20.0 |
Polyesters dispersant | 8.0 | |
Esters of acrylic acid dispersant | ||
Wetting agent | 4.0 | 2.0 |
Triethanolamine | 25.0 | 5.0 |
Propylene glycol | 10.0 | 40.0 |
Glycerine | 15.0 | |
Polyethylene glycol | 60.0 | |
Ammonium hydroxide | ||
High-carbon black pigment | 160.0 | |
Middle colour carbon black | 40.0 | |
Rubber black | ||
Alchlor (50%) | ||
Colourless pearl powder |
Formula 34 is added without system with formula in table 3, and mill base is made not have a stronger stereoscopic effect, but with resin or lotion
There are preferable brightness, blackness during compounding.
The explanation of above example is only intended to facilitate the understanding of the method and its core concept of the invention.It should be pointed out that pair
For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out
Some improvements and modifications, these improvement and modification are also fallen within the protection scope of the claims of the present invention.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide range caused.
Claims (7)
1. a kind of mill base is prepared by the raw material for including following components:Water, charcoal blacks, dispersant and functional aid;
The charcoal blacks are made of high-carbon black pigment, middle colour carbon black and rubber black;
The dispersant includes blocked phosphoric acid ester dispersant, polyesters dispersant and esters of acrylic acid dispersant;
The functional aid includes propylene glycol, glycerine, polyethylene glycol, ammonium hydroxide, triethanolamine, pearl powder and alchlor;
The dispersant is 28wt%~60wt% of the charcoal blacks, and the functional aid is the charcoal blacks
100wt%~130wt%;
The mass ratio of the high pigment mill base, middle pigment mill base and the rubber black is (15~25):(1~10):1.
2. mill base according to claim 1, which is characterized in that the specific surface area of the charcoal blacks is 50~500m2/ g,
Oil factor≤140cm3/100g。
3. mill base according to claim 1, which is characterized in that the weight average molecular weight of the dispersant is 2000~10000.
4. a kind of preparation method of mill base, includes the following steps:
Water, blocked phosphoric acid ester dispersant, triethanolamine, propylene glycol, polyethylene glycol and high-carbon black pigment are mixed, obtain the
One mixture;
By water, blocked phosphoric acid ester dispersant, polyesters dispersant, triethanolamine, propylene glycol, glycerine and middle colour carbon black
Mixing, obtains the second mixture;
Water, esters of acrylic acid dispersant, glycerine, polyethylene glycol and rubber black are mixed, obtain third mixture;
It is mixed after first mixture is ground with second mixture, the 4th mixture is obtained after grinding;
It mixes, then mixed with the 4th mixture, obtains with pearl powder, alchlor and ammonium hydroxide after the third mixture is ground
Mill base;
The mass ratio of the high pigment mill base, middle pigment mill base and the rubber black is (15~25):(1~10):1;
The total amount of the blocked phosphoric acid ester dispersant, polyesters dispersant and esters of acrylic acid dispersant is the carbon black face
28wt%~60wt% of material;
The propylene glycol, glycerine, polyethylene glycol, ammonium hydroxide, triethanolamine, pearl powder and alchlor total amount be the carbon black
100wt%~130wt% of pigment.
5. preparation method according to claim 4, which is characterized in that the fineness of first mixture is 3~5 μm, institute
The fineness for stating the second mixture is 3~5 μm, and the fineness of the third mixture is 3~5 μm.
6. preparation method according to claim 4, which is characterized in that the average grain diameter of the 4th mixture is less than 0.85
μm。
7. preparation method according to claim 4, which is characterized in that the grain size of the pearl powder is 2~100 μm.
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CN107760108A (en) * | 2017-09-25 | 2018-03-06 | 浙江纳美新材料股份有限公司 | A kind of seed coat agent wear-resisting mixing mill base and preparation method thereof |
CN107955209A (en) * | 2017-11-17 | 2018-04-24 | 青岛黑猫炭黑科技有限责任公司 | A kind of method that carbon black wet-treating prepares slurries |
CN108219594A (en) * | 2017-11-29 | 2018-06-29 | 广德粤华塑业制品有限公司 | A kind of environmental protection pearly-lustre mill base |
CN108102467A (en) * | 2017-11-29 | 2018-06-01 | 广德粤华塑业制品有限公司 | A kind of aqueous carbon black environmental protection mill base |
CN113004719A (en) * | 2021-01-28 | 2021-06-22 | 江西三越新材料有限公司 | Dispersant composition for low-oxidation-degree rubber carbon black and preparation method thereof |
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EP0612821A1 (en) * | 1993-02-24 | 1994-08-31 | Merichem Company | Carbon black dispersant |
CN1532241A (en) * | 2003-03-25 | 2004-09-29 | 深圳市海川实业股份有限公司 | Hydrophobic carbon black water color paste |
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