CN106752106A - Anti-aging functional filler nano-calcium carbonate of bright white uvioresistant and its production and use - Google Patents
Anti-aging functional filler nano-calcium carbonate of bright white uvioresistant and its production and use Download PDFInfo
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/02—Compounds of alkaline earth metals or magnesium
- C09C1/021—Calcium carbonates
- C09C1/022—Treatment with inorganic compounds
- C09C1/024—Coating
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
- C01F11/182—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
- C01F11/182—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds
- C01F11/183—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds the additive being an organic compound
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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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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- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/06—Treatment with inorganic compounds
- C09C3/063—Coating
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
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Abstract
The invention discloses a kind of anti-aging functional filler nano-calcium carbonate of bright white uvioresistant, by to reaction system concentration in preparation technology, terminate pH value, reaction temperature, the formula of dispersant and the selection indices of covering are precisely controlled, particle diameter is obtained for 80nm 200nm, whiteness reaches more than 92, oxide coated by zinc amount reaches 4%, soilless sticking phenomenon, with the high-performance multipurpose nano-calcium carbonate that uvioresistant is anti-aging, products obtained therefrom can be in rubber, silica gel, plastics, field of papermaking increases the anti-oxidant anti-ultraviolet property and bright cleanliness of product as filler.
Description
Technical field
The present invention relates to field of material technology, more particularly to a kind of novel nano calcium carbonate and preparation method thereof and use
On the way.
Background technology
Calcium carbonate is a kind of important inorganic material, is widely used in the fields such as rubber, plastics, papermaking.Present calcium carbonate
Product is based on precipitated calcium carbonate, activated Calcium carbonate.Existing calcium carbonate product added value is not high, accordingly, it would be desirable to develop additional
The new product that value is high, market potential is big is widening the development space of calcium carbonate enterprise.Zinc oxide is also a kind of important inorganic material
Material, it can also be used to which the field such as rubber, plastics, papermaking, it has preferable modifying function to downstream product, but cost compares calcium carbonate
It is high.At present, existing nanon calcium carbonatefilled material, has limitation, high cost, product whiteness poor, anti-with modified effect
The poor shortcoming of ultraviolet antioxygenic property.Therefore product of the present invention is, in calcium carbonate surface, to form oxidation by oxide coated by zinc
The composite of zinc and calcium carbonate, obtains a kind of functional filler nano-calcium carbonate calcium product, and the composite is used for downstream product
In, you can the uvioresistant antioxygenic property of downstream product is effectively improved, the whiteness of product is improved, production cost can be reduced again.
A kind of calcium carbonate-filled anti-flaming polypropylene material and preparation method thereof is disclosed in Chinese patent CN105348641A,
Raw material composition is acrylic resin 25-28 parts, calcium carbonate 10-60 parts, compound flame retardant 1-10 parts, compatilizer 1-20 parts, antioxygen
Agent 0.2-0.6 parts, lubricant 0.2-1.0 parts, White Mineral Oil 0.1-0.3 parts.The anti-flaming polypropylene material fire resistance of the invention is excellent
Different, good mechanical properties, processing characteristics are excellent, low cost.
Chinese patent CN201510884929.X<<<<Disclose a kind of modified rubber calcium carbonate and preparation method thereof；This
Invention is included count by weight percentage：Calcium carbonate 90%~98% and super carrier 2%~10%；First calcium carbonate is carried out
Surface treatment, then the prepared modified rubber calcium carbonate of pelletizing is extruded by extruder.
Chinese patent CN201410507926.X discloses a kind of enhanced modified calcium carbonate of antiageing effect, and its feature exists
In being made up of the raw material of following weight portion：Calcium carbonate 90-95, antioxidant NBC 1-2, nitrile rubber 6-8, PVC waste powder
5-6, calcined loess powder 2-3, DBPC 2,6 ditertiary butyl p cresol 1-2, the own ester 2-3 of tri trimellitate, tetramethylthiuram disulfide
1-2, tung oil 1-1.5, vegetable wax 1-2, modifying titanium dioxide 3-4；It is anti-ageing that the invention with the addition of DBPC 2,6 ditertiary butyl p cresol etc.
Agent and various high molecular polymers are coated, and modified calcium carbonate intensity is big, and adhesion is good.
Chinese patent CN201410507860.4 discloses a kind of modified calcium carbonate with flame retardant effect, and its feature exists
In being made up of the raw material of following weight portion：Calcium carbonate 90-95, calcium carbide ground-slag 3-5, vermiculite power 3-4, antimony oxide 2-
4th, asbestos fibre 1-2, Firebrake ZB 2-3, crushing shuck 2-4, Isooctyl acrylate monomer 6-8, acetyl citrate 5-7, EVA wax 3-
5th, tetrabromobisphenol a1-2, modifying titanium dioxide 3-4；The filler is used to produce the auxiliary agents such as coating, pigment, rubber.
Above is several patents on method of producing nano-calcium carbonate, there is modified effect has limitation, product
The shortcoming that whiteness is poor, anti-oxidant anti-ultraviolet property is poor.
The content of the invention
The technical problem to be solved in the present invention is a variety of deficiencies for overcoming prior art, there is provided a kind of bright white uvioresistant resists
Aging functional filler nano-calcium carbonate and its production and use.
In order to solve the above technical problems, the technical solution used in the present invention is as follows.
The anti-aging functional filler nano-calcium carbonate of bright white uvioresistant, by dense to reaction system in preparation technology
The selection indices of degree, termination pH value, reaction temperature, the formula of dispersant and covering are precisely controlled, and obtain particle diameter
4%, soilless sticking phenomenon, anti-aging with uvioresistant is reached for 80nm-200nm, whiteness reach more than 92, oxide coated by zinc amount
High-performance multipurpose nano-calcium carbonate.
The preparation method of the above-mentioned anti-aging functional filler nano-calcium carbonate of bright white uvioresistant, comprises the following steps：
A, calcium hydroxide slurry being prepared first and dispersant is added thereto to, controlling reaction temperature is 40 DEG C -60 DEG C, is then passed to
Carbon dioxide is reacted, terminating reaction when being down to 6.3-6.8 to pH value of reaction system, obtains nano-calcium carbonate slurry；
B, sodium zincate is added in nano-calcium carbonate slurry obtained by step A, controlling reaction temperature is 55 DEG C -65 DEG C, lasting stirring
30min-50min, forms zinc hydroxide-calcium carbonate primary composite material sizing agent；
C, step B gained slurry obtain the powder of preliminary composite through being dehydrated, drying, then through hyperthermic treatment, make primary compound
The abundant dehydration in powder surface of material, obtains zinc oxide-calcium carbonate composite material, i.e. functional filler nano-calcium carbonate.
Used as a kind of optimal technical scheme of above-mentioned preparation method, in step A, the dispersant is using sodium gluconate, hard
One or more combination in resin acid sodium, sodium laurate, calgon；Total consumption of the dispersant is nano-calcium carbonate weight
1%-3%.
As a kind of optimal technical scheme of above-mentioned preparation method, in step B, first received described before sodium zincate is added
The weight percent concentration of rice calcium carbonate slurry is adjusted to 8%-18%.
Used as a kind of optimal technical scheme of above-mentioned preparation method, in step B, the sodium zincate addition is nano-calcium carbonate
The 1%-10% of calcium weight.
As a kind of optimal technical scheme of above-mentioned preparation method, in step B, the mixing speed is controlled to be in stir process
400r/min-800r/min。
Used as a kind of optimal technical scheme of above-mentioned preparation method, in step C, the hyperthermic treatment controls the final temperature to be
115 DEG C -150 DEG C, maintain 1-2h.
As a kind of optimal technical scheme of above-mentioned preparation method, in step C, the cladding of zinc oxide in the finished product
It is the 2-4% of nano-calcium carbonate weight to measure.
Used as a kind of optimal technical scheme of above-mentioned preparation method, the method comprises the following steps：
A, calcium hydroxide slurry being prepared first and dispersant is added thereto to, controlling reaction temperature is 50 DEG C, then passes to dioxy
Change carbon to be reacted, terminating reaction when being down to 6.5 to pH value of reaction system obtains nano-calcium carbonate slurry；Wherein, the dispersion
Agent uses calgon, and total consumption of dispersant is the 2% of nano-calcium carbonate weight；
B, sodium zincate is added in nano-calcium carbonate slurry obtained by step A, controlling reaction temperature is 60 DEG C, persistently stirs 40min,
Form zinc hydroxide-calcium carbonate primary composite material sizing agent；Wherein, first the nano-calcium carbonate was starched before sodium zincate is added
The weight percent concentration of material is adjusted to 15%, and sodium zincate addition is the 6% of nano-calcium carbonate weight；Also, in stir process
It is middle to control mixing speed for 600r/min；
C, step B gained slurry obtain the powder of preliminary composite through being dehydrated, drying, and are warming up to 130 DEG C, maintain 1.5h, make
The abundant dehydration in powder surface of preliminary composite, obtains zinc oxide-calcium carbonate composite material, and the covering amount of zinc oxide is nanometer
The 4% of weight of calcium carbonate, obtains final product functional filler nano-calcium carbonate.
The purposes of the above-mentioned anti-aging functional filler nano-calcium carbonate of bright white uvioresistant, in rubber, silica gel, plastics, makes
Paper field increases the anti-oxidant anti-ultraviolet property and bright cleanliness of product as filler.
It is using the beneficial effect produced by above-mentioned technical proposal：
The present invention is in preparation technology by reaction system concentration, termination pH value, reaction temperature, the formula of dispersant and cladding
The selection indices of agent are precisely controlled, and obtain particle diameter for 80nm-200nm, whiteness reach more than 92, oxide coated by zinc amount
Reach 4%, soilless sticking phenomenon, with the anti-aging high-performance multipurpose nano-calcium carbonate of uvioresistant.It can be seen that, protrusion of the invention
Advantage is, with good uvioresistant, antioxygenic property and whiteness higher, can to overcome and have nano-calcium carbonate at present
The shortcoming that filler product whiteness is relatively low, uvioresistant is poor, antioxygenic property is poor, accommodation is narrower.Product prepared by the present invention
Product can be applied in the materials such as rubber, silica gel, polypropylene, be remarkably improved the anti-oxidant anti-ultraviolet property and product of the material
The whiteness of product.
Specific embodiment
Following examples are described in detail the present invention.Various raw materials used in the present invention and items of equipment are conventional commercial product
Product, can be bought by market and directly obtained.
Embodiment 1
（1）The preparation of nano-calcium carbonate slurry
To calgon is added in calcium hydroxide slurry, control ph 6.5 is stirred with the speed of 600r/min, is passed through dioxy
Change carbon and obtain weight percent concentration for 15% nano-calcium carbonate slurry；
（2）The preparation of preliminary composite
After the completion of carbonization, 30kg nano-calcium carbonate slurries are added in 50L reactors, 180g sodium zincates are added, with 600r/
The speed stirring of min, sodium zincate hydrolysis generation zinc hydroxide.Zinc hydroxide is coated on calcium carbonate surface, forms zinc hydroxide-carbon
Sour calcium preliminary composite slurry；
（3）The surface treatment of composite
Slurry obtains the powder of preliminary composite through being dehydrated, drying.Again through 130 DEG C of hyperthermic treatments, and 130 DEG C of 1.5h are maintained,
Make surface dehydration, obtain zinc oxide-calcium carbonate composite material, i.e. functional filler nano-calcium carbonate, the filler nanometer calcium carbonate
The oxide coated by zinc amount on surface is the 4% of nano-calcium carbonate weight.
Embodiment 2
（1）The preparation of nano-calcium carbonate slurry
To calgon is added in calcium hydroxide slurry, control ph 6.5 is stirred with the speed of 400r/min, is passed through dioxy
Change carbon and obtain weight percent concentration for 16% nano-calcium carbonate slurry；
（2）The preparation of preliminary composite
After the completion of carbonization, 30kg nano-calcium carbonate slurries are added in 50L reactors, 180g sodium zincates are added, with 400r/
The speed stirring of min, sodium zincate hydrolysis generation zinc hydroxide.Zinc hydroxide is coated on calcium carbonate surface, forms zinc hydroxide-carbon
Sour calcium preliminary composite slurry；
（3）The surface treatment of composite
Slurry obtains the powder of preliminary composite through being dehydrated, drying.Again through 130 DEG C of hyperthermic treatments, and 130 DEG C of 1.5h are maintained,
Make surface dehydration, obtain zinc oxide-calcium carbonate composite material, i.e. functional filler nano-calcium carbonate, the filler nanometer calcium carbonate
The oxide coated by zinc amount on surface is the 3.6% of nano-calcium carbonate weight.
Embodiment 3
（1）The preparation of nano-calcium carbonate slurry
To calgon is added in calcium hydroxide slurry, control ph 6.3 is stirred with the speed of 600r/min, is passed through dioxy
Change carbon and obtain weight percent concentration for 12% nano-calcium carbonate slurry；
（2）The preparation of preliminary composite
After the completion of carbonization, 30kg nano-calcium carbonate slurries are added in 50L reactors, 180g sodium zincates are added, with 600r/
The speed stirring of min, sodium zincate hydrolysis generation zinc hydroxide.Zinc hydroxide is coated on calcium carbonate surface, forms zinc hydroxide-carbon
Sour calcium preliminary composite slurry；
（3）The surface treatment of composite
Slurry obtains the powder of preliminary composite through being dehydrated, drying.Again through 130 DEG C of hyperthermic treatments, and 130 DEG C of 1.5h are maintained,
Make surface dehydration, obtain zinc oxide-calcium carbonate composite material, i.e. functional filler nano-calcium carbonate, the filler nanometer calcium carbonate
The oxide coated by zinc amount on surface is the 3.3% of nano-calcium carbonate weight.
Embodiment 4
（1）The preparation of nano-calcium carbonate slurry
To calgon is added in calcium hydroxide slurry, control ph 6.3 is stirred with the speed of 600r/min, is passed through dioxy
Change carbon and obtain weight percent concentration for 15% nano-calcium carbonate slurry；
（2）The preparation of preliminary composite
After the completion of carbonization, 30kg nano-calcium carbonate slurries are added in 50L reactors, 150g sodium zincates are added, with 600r/
The speed stirring of min, sodium zincate hydrolysis generation zinc hydroxide.Zinc hydroxide is coated on calcium carbonate surface, forms zinc hydroxide-carbon
Sour calcium preliminary composite slurry；
（3）The surface treatment of composite
Slurry obtains the powder of preliminary composite through being dehydrated, drying.Again through 130 DEG C of hyperthermic treatments, and 130 DEG C of 1.5h are maintained,
Make surface dehydration, obtain zinc oxide-calcium carbonate composite material, i.e. functional filler nano-calcium carbonate, the filler nanometer calcium carbonate
The oxide coated by zinc amount on surface is the 3.1% of nano-calcium carbonate weight.
Embodiment 5
（1）The preparation of nano-calcium carbonate slurry
To calgon is added in calcium hydroxide slurry, control ph 6.3 is stirred with the speed of 600r/min, is passed through dioxy
Change carbon and obtain weight percent concentration for 15% nano-calcium carbonate slurry；
（2）The preparation of preliminary composite
After the completion of carbonization, 30kg nano-calcium carbonate slurries are added in 50L reactors, 180g sodium zincates are added, with 600r/
The speed stirring of min, sodium zincate hydrolysis generation zinc hydroxide.Zinc hydroxide is coated on calcium carbonate surface, forms zinc hydroxide-carbon
Sour calcium preliminary composite slurry；
（3）The surface treatment of composite
Slurry obtains the powder of preliminary composite through being dehydrated, drying.Again through 150 DEG C of hyperthermic treatments, and 150 DEG C of 1.5h are maintained,
Make surface dehydration, obtain zinc oxide-calcium carbonate composite material, i.e. functional filler nano-calcium carbonate, the filler nanometer calcium carbonate
The oxide coated by zinc amount on surface is the 2.0% of nano-calcium carbonate weight.
Embodiment 6
（1）The preparation of nano-calcium carbonate slurry
To calgon is added in calcium hydroxide slurry, control ph 6.3 is stirred with the speed of 600r/min, is passed through dioxy
Change carbon and obtain weight percent concentration for 15% nano-calcium carbonate slurry；
（2）The preparation of preliminary composite
After the completion of carbonization, 30kg nano-calcium carbonate slurries are added in 50L reactors, 180g sodium zincates are added, with 600r/
The speed stirring of min, sodium zincate hydrolysis generation zinc hydroxide.Zinc hydroxide is coated on calcium carbonate surface, forms zinc hydroxide-carbon
Sour calcium preliminary composite slurry；
（3）The surface treatment of composite
Slurry obtains the powder of preliminary composite through being dehydrated, drying.Again through 130 DEG C of hyperthermic treatments, and 150 DEG C of 2h are maintained, made
Surface dehydration, obtains zinc oxide-calcium carbonate composite material, i.e. functional filler nano-calcium carbonate, the filler nanometer calcium carbonate table
The oxide coated by zinc amount in face is the 3.6% of nano-calcium carbonate weight.
It is presented above implementation several instantiations of the invention.The present invention is carbonized in nano-calcium carbonate production process
After the completion of, sodium zincate is added in calcium carbonate slurry, nano-calcium carbonate slurry pH value is controlled, continue to be passed through carbon dioxide, zincic acid
Sodium hydrolysis generation zinc hydroxide, zinc hydroxide is coated on calcium carbonate surface, forms preliminary composite（Zinc hydroxide -- carbonic acid
Calcium）Slurry；Slurry obtains the powder of preliminary composite through being dehydrated, drying；Preliminary composite powder again through intensification at
Reason, makes surface dehydration, obtains zinc oxide -- calcium carbonate composite material, i.e. functional filler nano-calcium carbonate；What the present invention was obtained
Zinc oxide-calcium carbonate composite material, nano-calcium carbonate coated with zinc oxide participates in reacting so that it has by calcium ion
Good anti-ultraviolet property and antioxygenic property.
Foregoing description only proposes as enforceable technical scheme of the invention, not as to its technical scheme single in itself
Restrictive condition.
Claims (10)
1. the anti-aging functional filler nano-calcium carbonate of bright white uvioresistant, it is characterised in that：By to anti-in preparation technology
The selection indices of system concentration, termination pH value, reaction temperature, the formula of dispersant and covering are answered to be precisely controlled,
Obtain particle diameter reach 4%, soilless sticking phenomenon for 80nm-200nm, whiteness reach more than 92, oxide coated by zinc amount, with uvioresistant
Anti-aging high-performance multipurpose nano-calcium carbonate.
2. the preparation method of the anti-aging functional filler nano-calcium carbonate of bright white uvioresistant described in claim 1, its feature exists
In：The method comprises the following steps：
A, calcium hydroxide slurry being prepared first and dispersant is added thereto to, controlling reaction temperature is 40 DEG C -60 DEG C, is then passed to
Carbon dioxide is reacted, terminating reaction when being down to 6.3-6.8 to pH value of reaction system, obtains nano-calcium carbonate slurry；
B, sodium zincate is added in nano-calcium carbonate slurry obtained by step A, controlling reaction temperature is 55 DEG C -65 DEG C, lasting stirring
30min-50min, forms zinc hydroxide-calcium carbonate primary composite material sizing agent；
C, step B gained slurry obtain the powder of preliminary composite through being dehydrated, drying, then through hyperthermic treatment, make primary compound
The abundant dehydration in powder surface of material, obtains zinc oxide-calcium carbonate composite material, i.e. functional filler nano-calcium carbonate.
3. the preparation method of the anti-aging functional filler nano-calcium carbonate of bright white uvioresistant according to claim 2, its
It is characterised by：In step A, the dispersant using a kind of in sodium gluconate, odium stearate, sodium laurate, calgon or
Several combinations；Total consumption of the dispersant is the 1%-3% of nano-calcium carbonate weight.
4. the preparation method of the anti-aging functional filler nano-calcium carbonate of bright white uvioresistant according to claim 2, its
It is characterised by：In step B, first the weight percent concentration of the nano-calcium carbonate slurry was adjusted to before sodium zincate is added
8%-18%。
5. the preparation method of the anti-aging functional filler nano-calcium carbonate of bright white uvioresistant according to claim 2, its
It is characterised by：In step B, the sodium zincate addition is the 1%-10% of nano-calcium carbonate weight.
6. the preparation method of the anti-aging functional filler nano-calcium carbonate of bright white uvioresistant according to claim 2, its
It is characterised by：In step B, it is 400r/min-800r/min that mixing speed is controlled in stir process.
7. the preparation method of the anti-aging functional filler nano-calcium carbonate of bright white uvioresistant according to claim 2, its
It is characterised by：In step C, the hyperthermic treatment controls final temperature for 115 DEG C -150 DEG C, maintains 1-2h.
8. the preparation method of the anti-aging functional filler nano-calcium carbonate of bright white uvioresistant according to claim 2, its
It is characterised by：In step C, the covering amount of zinc oxide is the 2-4% of nano-calcium carbonate weight in the finished product.
9. the preparation of the anti-aging functional filler nano-calcium carbonate of bright white uvioresistant according to claim any one of 2-8
Method, it is characterised in that：The method comprises the following steps：
A, calcium hydroxide slurry being prepared first and dispersant is added thereto to, controlling reaction temperature is 50 DEG C, then passes to dioxy
Change carbon to be reacted, terminating reaction when being down to 6.5 to pH value of reaction system obtains nano-calcium carbonate slurry；Wherein, the dispersion
Agent uses calgon, and total consumption of dispersant is the 2% of nano-calcium carbonate weight；
B, sodium zincate is added in nano-calcium carbonate slurry obtained by step A, controlling reaction temperature is 60 DEG C, persistently stirs 40min,
Form zinc hydroxide-calcium carbonate primary composite material sizing agent；Wherein, first the nano-calcium carbonate was starched before sodium zincate is added
The weight percent concentration of material is adjusted to 15%, and sodium zincate addition is the 6% of nano-calcium carbonate weight；Also, in stir process
It is middle to control mixing speed for 600r/min；
C, step B gained slurry obtain the powder of preliminary composite through being dehydrated, drying, and are warming up to 130 DEG C, maintain 1.5h, make
The abundant dehydration in powder surface of preliminary composite, obtains zinc oxide-calcium carbonate composite material, and the covering amount of zinc oxide is nanometer
The 4% of weight of calcium carbonate, obtains final product functional filler nano-calcium carbonate.
10. the purposes of the anti-aging functional filler nano-calcium carbonate of bright white uvioresistant described in claim 1, rubber, silica gel,
Plastics, field of papermaking increase the anti-oxidant anti-ultraviolet property and bright cleanliness of product as filler.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107541095A (en) * | 2017-07-21 | 2018-01-05 | 贺州钟山县双文碳酸钙新材料有限公司 | A kind of ultrawhite calcium carbonate |
| CN108587242A (en) * | 2018-06-06 | 2018-09-28 | 石家庄学院 | A kind of preparation method of wear-resisting oxidation-resistant ceramic glaze filling nano calcium carbonate composite material |
| CN108585474A (en) * | 2018-06-06 | 2018-09-28 | 石家庄学院 | A kind of preparation method of anti-bacteria ceramic glaze filling nano-calcium carbonate |
| CN113000058A (en) * | 2021-03-08 | 2021-06-22 | 北京化工大学 | Preparation method and application of nano zinc oxide/calcium carbonate composite powder |
| CN115627029A (en) * | 2022-10-25 | 2023-01-20 | 漳州市广益塑料有限公司 | Anti-aging plastic and preparation method thereof |
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| CN101277706A (en) * | 2005-09-29 | 2008-10-01 | 聂洱 | Zinc oxide coated particles, compositions containing the same, and methods for making the same |
| CN101671497A (en) * | 2009-10-10 | 2010-03-17 | 上海卓越纳米新材料股份有限公司 | Industrial preparing method for PVC dedicated filler nanometer calcium carbonate with thermostability function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107541095A (en) * | 2017-07-21 | 2018-01-05 | 贺州钟山县双文碳酸钙新材料有限公司 | A kind of ultrawhite calcium carbonate |
| CN108587242A (en) * | 2018-06-06 | 2018-09-28 | 石家庄学院 | A kind of preparation method of wear-resisting oxidation-resistant ceramic glaze filling nano calcium carbonate composite material |
| CN108585474A (en) * | 2018-06-06 | 2018-09-28 | 石家庄学院 | A kind of preparation method of anti-bacteria ceramic glaze filling nano-calcium carbonate |
| CN108587242B (en) * | 2018-06-06 | 2020-05-05 | 石家庄市红日钙业有限公司 | Preparation method of nano calcium carbonate composite material for filling wear-resistant and antioxidant ceramic glaze |
| CN113000058A (en) * | 2021-03-08 | 2021-06-22 | 北京化工大学 | Preparation method and application of nano zinc oxide/calcium carbonate composite powder |
| CN115627029A (en) * | 2022-10-25 | 2023-01-20 | 漳州市广益塑料有限公司 | Anti-aging plastic and preparation method thereof |
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| CN106752106B (en) | 2018-04-17 |
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