CN106543530A - A kind of brightness it is good, coated by titanium dioxide calcium carbonate inorganic filler and preparation method thereof - Google Patents
A kind of brightness it is good, coated by titanium dioxide calcium carbonate inorganic filler and preparation method thereof Download PDFInfo
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- CN106543530A CN106543530A CN201610914170.XA CN201610914170A CN106543530A CN 106543530 A CN106543530 A CN 106543530A CN 201610914170 A CN201610914170 A CN 201610914170A CN 106543530 A CN106543530 A CN 106543530A
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- calcium carbonate
- titanium dioxide
- coated
- brightness
- inorganic filler
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention discloses a kind of brightness it is good, coated by titanium dioxide calcium carbonate inorganic filler and preparation method thereof, it is characterised in that be made up of the raw material of following weight portion：Butyl 23, calcium oxide 40 50, different monooctyl ester 12, CO2In right amount, acetylacetone,2,4-pentanedione 5 10, sodium stearate 6 12, hard paraffin 23, butyl titanate 15 25, polyvinyl resin 25 35, dimethicone 8 12, deionized water 200 250.The present invention utilizes titanium dioxide and polyvinyl resin to carry out dual cladding to calcium carbonate powder, not only increases acid resistance, whiteness and the fire resistance of calcium carbonate powder, while improving its amalgamation with organic group bottom so as to meet wider application requirement；The butyl for adding and isooctanol is coordinated to improve the brightness of product.
Description
Technical field
The present invention relates to a kind of composite modified calcium carbonate powder and its preparation, more particularly to a kind of brightness it is good, titanium dioxide
Titanium coated caco3 inorganic filler and preparation method thereof.
Background technology
The surface modification treatment of powder body is exactly the needs according to powder body material application, using methods such as physics, chemistry, machineries
Purposefully change the physicochemical properties of powder body material surface, such as surface composition, structure and functional group, surface energy, surface profit
Moist, electrical, photosensitiveness, absorption and response characteristic etc., to meet the needs of modern material and development of new techniques.In plastics, people
Make in the industry of marble Polymer material and polymer composites materials application, calcium carbonate powder filler occupies critically important
Status.Pearl filler not only can lower the production cost of material, moreover it is possible to improve hardness, rigidity or the dimensionally stable of material
Property, improves the mechanical property of material and gives material some special physical and chemical performances, such as corrosion resistance, weatherability, fire-retardant
Property and insulating properties etc..But the surface due to pearl filler and substrate, i.e. organic polymer or interfacial property are different, the compatibility compared with
Difference, therefore, it is difficult to it is dispersed in substrate, fill directly or too much and tend under some mechanical properties for causing material
The shortcomings of dropping and be brittle.Therefore, in addition to the requirement to the granularity and particle size distribution of pearl filler, it is necessary to which
Modifying surface, to improve the physicochemical characteristicss on its surface, strengthen its with organic polymer or resin etc. matrix it is compatible
Property and the dispersibility in organic matrix, to improve the mechanical performance and combination property of material.
Section its master thesis fortunately《The dry surface modification research of calcium carbonate superfine powder powder body》In, using Oleic acid-horse
Carry out anhydride composite modifier to be modified calcium carbonate powder, but when Calcium Carbonate is used as fillers such as plastics, coating, also exist
That acid resistance is not good, the shortcomings of shortcoming with the amalgamation at organic group bottom.
The content of the invention
Thinking based on more than, the present invention is intended to provide a kind of composite modified calcium carbonate inorganic filler and preparation method thereof,
To solve when Calcium Carbonate is used as fillers such as plastics, coating, the acid resistance for existing is not good, is short of with the amalgamation at organic group bottom
The shortcomings of.
The technical problem to be solved is realized using following technical scheme：
A kind of brightness it is good, coated by titanium dioxide calcium carbonate inorganic filler, it is characterised in that by the raw material system of following weight portion
Into：
Butyl 2-3, calcium oxide 40-50, different monooctyl ester 1-2, CO2In right amount, acetylacetone,2,4-pentanedione 5-10, sodium stearate 6-12,
Hard paraffin 2-3, butyl titanate 15-25, polyvinyl resin 25-35, dimethicone 8-12, deionized water 200-250.
A kind of described brightness it is good, coated by titanium dioxide calcium carbonate inorganic filler and preparation method thereof, it is characterised in that
It is made up of following steps：
A. calcium oxide solid is crushed into powdered, adds deionized water, stirring reaction 2-3h at 60-100 DEG C is reacted
After serosity ageing 1-3h, serosity is transferred in carburizing reagent kettle, CO2Mixed after spinner flowmeter metering with air, led to
Enter the gas distributor in carburizing reagent bottom portion；As pH ＜ 7, terminate reaction, obtain calcium carbonate serosity；
B., at 70-90 DEG C, acetylacetone,2,4-pentanedione, different monooctyl ester, sodium stearate are added in calcium carbonate serosity obtained by step a, in grinder
After middle grinding stirs, butyl titanate being slowly added dropwise in grinding, continuing grinding 0.5-1h after terminating, butyl titanate is in acetyl
In the presence of acetone, hydrolysis generates titanium dioxide fine particles, and under the activation of sodium stearate, is coated on calcium carbonate granule table
Face；The Calcium Carbonate of cladding titanium dioxide microgranule is filtered, is dried, is then crushed, obtain the Calcium Carbonate of cladding titanium dioxide
Powder；
C. by Paris white input high speed mixer obtained by step b, polyvinyl resin, butyl, solid stone are added
Wax, dimethicone, stirring are warming up to 90-110 DEG C, and after insulated and stirred 10-30min, Jing double screw extruder extruding pelletizations are
Can.
A kind of described brightness it is good, coated by titanium dioxide calcium carbonate inorganic filler and preparation method thereof, it is characterised in that
CO in step a2Flow is 0.04-0.40L/g (CaO) min, and reaction temperature is 15-45 DEG C.
The invention has the beneficial effects as follows：In the presence of acetylacetone,2,4-pentanedione, hydrolysis generates titanium dioxide fine particles to butyl titanate, and
Under the activation of sodium stearate, calcium carbonate granule surface is coated on, enhances the acid resistance of calcium carbonate powder, whiteness and resistance to
Fiery performance so as to meet wider application requirement；The calcium carbonate powder of cladding titanium dioxide is carried out with polyethylene again afterwards
Coat again, be lipophile by gained powder body hydrophilic characteristic transition, promote its fusion with organic group bottom, make gained carbonic acid
Calcium powder physical ability is preferably applied to the fields such as plastics, coating；The dimethicone for adding therebetween, prevents the group between Calcium Carbonate
It is poly-, while promoting dispersion of the Calcium Carbonate in polyvinyl resin so as to parcel it is more uniform；Coordinate the diethylene glycol of addition
Butyl ether and isooctanol improve the brightness of product.
Specific embodiment
With reference to embodiment, the specific embodiment of the present invention is further described.
Embodiment
A kind of brightness it is good, coated by titanium dioxide calcium carbonate inorganic filler, it is characterised in that by the raw material of following weight portion
Make：
Butyl 2, calcium oxide 50, different monooctyl ester 2, CO2In right amount, acetylacetone,2,4-pentanedione 10, sodium stearate 6, hard paraffin 3, titanium
Acid butyl ester 25, polyvinyl resin 35, dimethicone 12, deionized water 250.
A kind of described brightness it is good, coated by titanium dioxide calcium carbonate inorganic filler and preparation method thereof, it is characterised in that
It is made up of following steps：
A. calcium oxide solid is crushed into powdered, adds deionized water, stirring reaction 2-3h at 60-100 DEG C is reacted
After serosity ageing 1-3h, serosity is transferred in carburizing reagent kettle, CO2Mixed after spinner flowmeter metering with air, led to
Enter the gas distributor in carburizing reagent bottom portion；As pH ＜ 7, terminate reaction, obtain calcium carbonate serosity；
B., at 70-90 DEG C, acetylacetone,2,4-pentanedione, different monooctyl ester, sodium stearate are added in calcium carbonate serosity obtained by step a, in grinder
After middle grinding stirs, butyl titanate being slowly added dropwise in grinding, continuing grinding 0.5-1h after terminating, butyl titanate is in acetyl
In the presence of acetone, hydrolysis generates titanium dioxide fine particles, and under the activation of sodium stearate, is coated on calcium carbonate granule table
Face；The Calcium Carbonate of cladding titanium dioxide microgranule is filtered, is dried, is then crushed, obtain the Calcium Carbonate of cladding titanium dioxide
Powder；
C. by Paris white input high speed mixer obtained by step b, polyvinyl resin, butyl, solid stone are added
Wax, dimethicone, stirring are warming up to 90-110 DEG C, and after insulated and stirred 10-30min, Jing double screw extruder extruding pelletizations are
Can.
A kind of described brightness it is good, coated by titanium dioxide calcium carbonate inorganic filler and preparation method thereof, it is characterised in that
CO in step a2Flow is 0.04-0.40L/g (CaO) min, and reaction temperature is 15-45 DEG C.
The present invention technical parameter be：Activation grade >=90%；Oil factor >=0.25mL/g.
Claims (3)
1. a kind of brightness it is good, coated by titanium dioxide calcium carbonate inorganic filler, it is characterised in that by the raw material system of following weight portion
Into：
Butyl 2-3, calcium oxide 40-50, different monooctyl ester 1-2, CO2In right amount, acetylacetone,2,4-pentanedione 5-10, sodium stearate 6-12, Gu
Body paraffin 2-3, butyl titanate 15-25, polyvinyl resin 25-35, dimethicone 8-12, deionized water 200-250.
2. a kind of brightness according to claim 1 it is good, coated by titanium dioxide calcium carbonate inorganic filler and preparation method thereof,
Characterized in that, being made up of following steps：
A. calcium oxide solid is crushed into powdered, adds deionized water, stirring reaction 2-3h at 60-100 DEG C is reacted
After serosity ageing 1-3h, serosity is transferred in carburizing reagent kettle, CO2Mixed after spinner flowmeter metering with air, led to
Enter the gas distributor in carburizing reagent bottom portion；As pH ＜ 7, terminate reaction, obtain calcium carbonate serosity；
B., at 70-90 DEG C, acetylacetone,2,4-pentanedione, different monooctyl ester, sodium stearate are added in calcium carbonate serosity obtained by step a, in grinder
After middle grinding stirs, butyl titanate being slowly added dropwise in grinding, continuing grinding 0.5-1h after terminating, butyl titanate is in acetyl
In the presence of acetone, hydrolysis generates titanium dioxide fine particles, and under the activation of sodium stearate, is coated on calcium carbonate granule table
Face；The Calcium Carbonate of cladding titanium dioxide microgranule is filtered, is dried, is then crushed, obtain the Calcium Carbonate of cladding titanium dioxide
Powder；
C. by Paris white input high speed mixer obtained by step b, polyvinyl resin, butyl, solid stone are added
Wax, dimethicone, stirring are warming up to 90-110 DEG C, and after insulated and stirred 10-30min, Jing double screw extruder extruding pelletizations are
Can.
3. a kind of brightness according to claim 2 it is good, coated by titanium dioxide calcium carbonate inorganic filler and preparation method thereof,
Characterized in that, CO in step a2Flow is 0.04-0.40L/g (CaO) min, and reaction temperature is 15-45 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610914170.XA CN106543530A (en) | 2016-10-20 | 2016-10-20 | A kind of brightness it is good, coated by titanium dioxide calcium carbonate inorganic filler and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610914170.XA CN106543530A (en) | 2016-10-20 | 2016-10-20 | A kind of brightness it is good, coated by titanium dioxide calcium carbonate inorganic filler and preparation method thereof |
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| Publication Number | Publication Date |
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| CN106543530A true CN106543530A (en) | 2017-03-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115873423A (en) * | 2022-12-29 | 2023-03-31 | 贺州学院 | Method for preparing modified calcium carbonate powder by using tetrabutyl titanate |
-
2016
- 2016-10-20 CN CN201610914170.XA patent/CN106543530A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115873423A (en) * | 2022-12-29 | 2023-03-31 | 贺州学院 | Method for preparing modified calcium carbonate powder by using tetrabutyl titanate |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170329 |
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| WD01 | Invention patent application deemed withdrawn after publication |