CN115322624A - Preparation method of nano titanium dioxide dispersion liquid for printing ink - Google Patents
Preparation method of nano titanium dioxide dispersion liquid for printing ink Download PDFInfo
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- 239000006185 dispersion Substances 0.000 title claims abstract description 83
- 239000007788 liquid Substances 0.000 title claims abstract description 58
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- 238000007639 printing Methods 0.000 title claims abstract description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 89
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000000843 powder Substances 0.000 claims abstract description 45
- 239000002245 particle Substances 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000003381 stabilizer Substances 0.000 claims abstract description 24
- 239000004094 surface-active agent Substances 0.000 claims abstract description 19
- 238000000227 grinding Methods 0.000 claims abstract description 18
- 238000005516 engineering process Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 15
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims abstract description 14
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000008346 aqueous phase Substances 0.000 claims abstract description 4
- 239000002270 dispersing agent Substances 0.000 claims abstract description 4
- 238000001179 sorption measurement Methods 0.000 claims abstract description 4
- 229920002125 Sokalan® Polymers 0.000 claims description 14
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 13
- 229960001631 carbomer Drugs 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 8
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 8
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000011164 primary particle Substances 0.000 claims description 5
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 4
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 4
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 4
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 4
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229920001661 Chitosan Polymers 0.000 claims description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims description 2
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000012071 phase Substances 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 2
- 235000011152 sodium sulphate Nutrition 0.000 claims description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 2
- -1 sulfuric acid ester salt Chemical class 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 1
- 239000011787 zinc oxide Substances 0.000 abstract description 6
- 239000002105 nanoparticle Substances 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 238000005054 agglomeration Methods 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 239000002609 medium Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 238000011328 necessary treatment Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000011020 pilot scale process Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 230000005476 size effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- JRFBNCLFYLUNCE-UHFFFAOYSA-N zinc;oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[O-2].[Ti+4].[Zn+2] JRFBNCLFYLUNCE-UHFFFAOYSA-N 0.000 description 1
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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
- C09D17/007—Metal oxide
- C09D17/008—Titanium dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
- C01G23/047—Titanium dioxide
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- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
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- C01P2004/03—Particle morphology depicted by an image obtained by SEM
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
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- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
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- Condensed Matter Physics & Semiconductors (AREA)
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- Wood Science & Technology (AREA)
- Environmental & Geological Engineering (AREA)
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Abstract
The invention discloses a preparation method of nano titanium oxide dispersion liquid for printing ink, which adopts a mechanical grinding mode to crush micron-sized titanium dioxide powder, wherein the particle size reaches the nano level; then, adding a dispersion stabilizer, a surfactant and nano titanium oxide powder into water according to a certain addition ratio in an aqueous dispersion system for mixing, increasing the absolute value of the electric double layer potential on the particle surface and improving the adsorption of a dispersing agent on the particle surface through the double-shaft rotation of an upper shaft and a lower shaft in the telecentric separation, increasing the repulsion force among particles, and obtaining the nano titanium oxide aqueous phase dispersion liquid with small size, high concentration and high stability. In the nano titanium oxide composite dispersion liquid prepared by the method, nano zinc oxide particles are suspended in the solution in a monodispersed form; the nano zinc oxide composite dispersion liquid is not layered, demulsified or agglomerated after being placed for more than 60 days; the solid content of the dispersion can reach 50%. Moreover, the technology can efficiently and quickly prepare the nanoparticle dispersion liquid with small particle size, uniform particle size distribution and small stability, and has wide application range.
Description
Technical Field
The invention relates to a preparation method of a nano titanium oxide dispersion liquid for printing ink, belonging to the fields of nanotechnology and fine chemical engineering.
Background
Nano titanium oxide is a multifunctional novel inorganic material, and the particle size of the nano titanium oxide is about 1 to 100 nanometers. The nanometer zinc oxide has the outstanding characteristics that the product particles are nanometer and have the double characteristics of nanometer materials and traditional zinc oxide. Due to the fine grain, the surface electronic structure and the crystal structure of the crystal grain are changed, and the characteristics of surface effect, volume effect, quantum size effect, macroscopic tunnel effect, high transparency, high dispersibility and the like which are not possessed by macroscopic objects are generated.
However, in the practical application process of the nano titanium oxide powder, the nano titanium oxide powder is easy to agglomerate due to the characteristics of large specific surface area, large specific surface energy and the like; on the other hand, the surface polarity of the nano titanium oxide is strong, and the nano titanium oxide is not easy to be uniformly dispersed in an organic medium, so that the exertion of the nano effect is greatly limited. Therefore, the dispersion and surface modification of the nano titanium oxide powder become necessary treatment means before the nano material is applied to a matrix.
Nano-dispersion refers to a technique of reducing aggregates of dry nanoparticles in various forms into primary particles in a specific liquid medium (e.g., water) by various principles, methods, and means, and stably and uniformly distributing the primary particles in the medium. However, the various surface modification and dispersion techniques currently used are not mature and the dispersion effect achieved is not ideal. Particularly, when dispersion is carried out in an aqueous medium, titanium oxide nanoparticles cannot be stably and uniformly dispersed in the aqueous medium, and thus a stable suspension cannot be formed; the dispersion liquid of the nano titanium oxide is easy to have the phenomena of demulsification, delamination and even agglomeration of solid matters; rather than using some nano-titania dispersions, the nano-titania powders are used directly. Some nano titanium oxide dispersion liquid can achieve a good dispersion effect, but some toxic and harmful or environment-unfriendly additives are added, so that the application range of the nano titanium oxide dispersion liquid is limited; or certain expensive additive components are added, so that the cost of the whole product is high, and the market competitiveness is weak; or the technical means is more complicated, and the method can only be limited to laboratory-scale small-scale preparation, and cannot realize industrialized large-scale production.
Disclosure of Invention
The invention aims to provide a preparation method of a nano titanium oxide dispersion liquid for ink, and particularly relates to a preparation method of a nano titanium oxide dispersion liquid for ink, which is small in particle size and good in stability.
The purpose of the invention is realized by the following scheme: a nano titanium oxide dispersion liquid for printing ink comprises the following ingredients: 5-40 g of dispersion stabilizer, 2-10 g of surfactant, 50-300 g of micron-sized titanium oxide powder and 1000 g of purified water.
(2) The preparation method comprises the following steps:
preparing a material before preparation, namely preparing a dispersion stabilizer into a 1% dispersion stabilizer solution for later use;
crushing the micron-sized titanium dioxide powder in a mechanical grinding mode until the particle size reaches the nanometer level; then, the user can use the device to perform the operation,
preparing an aqueous dispersion system, adding a dispersion stabilizer solution, a surfactant and nano titanium oxide powder into water according to the formula amount in the aqueous dispersion system for mixing, and increasing the absolute value of the electric double layer potential on the particle surface and the adsorption of a dispersing agent on the particle surface by double-shaft rotation of an upper shaft and a lower shaft in telecentric separation, so as to increase the repulsion force among particles and obtain the nano titanium oxide aqueous phase dispersion liquid with small size, high concentration and high stability.
Product characteristics: in the nano titanium oxide dispersion liquid prepared by the method, nano zinc oxide titanium particles are suspended in the solution in a monodisperse form; the nano titanium oxide composite dispersion liquid can not generate the phenomena of layering, emulsion breaking or caking after being placed for more than 60 days.
By controlling the nano dispersion technology, a set of novel dispersion technology which is efficient, environment-friendly and suitable for market demands is developed by combining other high and new technologies such as a telecentric separation technology and the like on the basis of the traditional grinding dispersion. By the technology, the nanoparticle dispersion liquid with small particle size, uniform particle size distribution and small stability can be efficiently and quickly prepared.
The dispersion stabilizer can be one of polyvinyl alcohol and derivatives thereof, polyvinylpyrrolidone and derivatives thereof, cellulose and derivatives thereof, water-soluble chitosan and derivatives thereof, polyethylene glycols, carbomers and the like, or the combination of the above substances.
The surfactant may be one of sodium sulfate, sodium sulfonate, sulfate ester salt, polyoxyethylene ether sulfate and the like with the carbon number (chain length) between C10 and C26, or a combination of the above substances.
In the technology of the invention, the dispersion stabilizer is adopted to carry out surface coating and modification on the nano titanium oxide, and the absolute value of the electric double layer potential on the particle surface and the adsorption effect of the dispersant on the particle surface are increased and the repulsion force among particles is increased by the double-shaft rotation of the upper shaft and the lower shaft of the equipment in the telecentric separation technology and the mechanical force combination mode in the stirring part; obtain the nano zinc oxide aqueous phase dispersion liquid with small size, high concentration and high stability. In the nano titanium oxide dispersion liquid prepared by the method, nano titanium oxide particles are suspended in the solution in a monodispersed form; the nano titanium oxide composite dispersion liquid can not generate the phenomena of layering, emulsion breaking or caking after being placed for more than 60 days; the solid content of the dispersion can reach 50%. The nano titanium oxide dispersion liquid uses nontoxic and harmless environment-friendly additive components, and has low cost and wide application range. In addition, the preparation method is simple and convenient to operate, wide in parameter adjustable range, low in energy consumption and short in period, and is suitable for pilot scale and industrial mass production.
Drawings
FIG. 1: scanning electron micrographs of the nano titanium oxide dispersion obtained in example 2;
FIG. 2 is a schematic diagram: the particle size distribution of the nano titanium oxide dispersion obtained in example 2 was analyzed.
Detailed Description
The invention is further illustrated by the following examples, which are intended only for a better understanding of the contents of the invention. The examples given therefore do not limit the scope of the invention.
Example 1
A nanometer titanium oxide dispersion liquid for printing ink is prepared by taking 1 kilogram of the nanometer titanium oxide dispersion liquid as a reference, the content of titanium oxide is 10 percent, the grain diameter of zinc oxide powder is about 1 micron, and the method comprises the following preparation steps:
preparing materials before preparation, namely preparing a dispersion stabilizer carbomer into a 1% solution for later use to prepare a 1% carbomer solution for later use;
crushing the micron-sized titanium dioxide powder by adopting a mechanical grinding mode until the particle size of the nano titanium dioxide powder reaches about 500 nm; then, the user can use the device to perform the operation,
preparing an aqueous dispersion system: adding a carbomer solution with the concentration of 1% and a surfactant sodium dodecyl sulfate into water in a water dispersion system, stirring to form a uniform solution, then adding nano titanium oxide powder into deionized water according to the formula amount until the mixture is 1kg of water, mixing, and dispersing for 1 hour by a telecentric separation technology to obtain a nano titanium oxide water-phase dispersion liquid with the particle size of about 100nm, uniform size and good stability.
Telecentric separation is adopted for the nano titanium oxide dispersion liquid prepared by the method, the primary particle size of the titanium oxide is about 100nm, and the titanium oxide is suspended in the solution in a monodisperse form; the nano titanium oxide dispersion liquid can not generate the phenomena of layering and agglomeration after being placed for more than 60 days.
Example 2
A nano titanium oxide dispersion liquid for printing ink comprises 0.5-4% of dispersion stabilizer, 0.2-1% of surfactant and 15% of micron-sized titanium oxide powder, wherein the adopted titanium oxide powder has a particle size of about 1 micron, and is prepared by the following steps:
preparing a material before preparation, and preparing a dispersion liquid with the titanium oxide content of 15 percent based on 1 kilogram of the nano titanium oxide composite dispersion liquid.
Preparing carbomer into 1% carbomer solution with dispersion stabilizer;
crushing the micron-sized titanium dioxide powder by adopting a mechanical grinding mode, and grinding the micron-sized titanium dioxide powder to the particle size of about 500nm to obtain nano titanium oxide powder; then, the user can use the device to perform the operation,
preparing an aqueous dispersion system: adding a carbomer solution with the concentration of 1 percent and a surfactant of sodium dodecyl polyoxyethylene ether sulfate into water in a water dispersion system, stirring to form a uniform solution, adding nano titanium oxide powder, adding deionized water to 1kg, and dispersing for 3 hours by adopting a telecentric separation technology to obtain a nano titanium oxide dispersion liquid with the particle size of about 100nm, uniform size and good stability.
The nano titanium oxide dispersion prepared by the method has the primary particle size of about 30nm and is suspended in the solution in a monodisperse form; the nano titanium oxide dispersion liquid can not generate the phenomena of layering and agglomeration after being placed for more than 60 days.
Example 3
A nano titanium oxide dispersion liquid for ink, comprising: 0.5 to 4 percent of dispersion stabilizer and 0.2 to 1 percent of surfactant, based on 1 kilogram of the nano titanium oxide composite dispersion, the dispersion with 25 percent of titanium oxide content is prepared, the grain diameter of the adopted titanium oxide powder is about 1 micron, and the preparation method comprises the following preparation steps:
preparing a material before preparation, namely preparing 1% polyvinylpyrrolidone solution from polyvinylpyrrolidone serving as a dispersion stabilizer for later use;
crushing and grinding micron-sized titanium dioxide powder to about 500nm of particle size by adopting a mechanical grinding mode to obtain nano titanium oxide powder; then, the user can use the device to perform the operation,
preparing a water dispersion system, adding 1% polyvinylpyrrolidone solution and surfactant lauryl sodium sulfate into water in the water dispersion system, stirring to form a uniform solution, adding nano titanium oxide powder, adding deionized water to 1kg, and dispersing for 2h by adopting a telecentric separation technology to obtain nano titanium oxide dispersion liquid with the particle size of about 80nm, uniform size and good stability.
The nano titanium oxide composite dispersion liquid prepared by the method has the titanium oxide particle size of about 80nm and is suspended in the solution in a monodisperse form; the nano titanium oxide dispersion liquid can not generate the phenomena of layering and caking after being placed for more than 60 days.
Example 4
A nano titanium oxide dispersion liquid for ink, comprising: 0.5 to 4 percent of dispersion stabilizer and 0.2 to 1 percent of surfactant, based on 1 kilogram of the nano titanium oxide dispersion, the dispersion with 25 percent of titanium oxide content is prepared, the grain diameter of the adopted nano titanium oxide powder is about 1 micron, and the preparation method comprises the following preparation steps:
preparing a material before preparation, namely preparing 1% solution of sodium carboxymethylcellulose for later use;
grinding titanium dioxide powder to about 500nm by mechanical grinding to obtain nano titanium oxide powder;
preparing a water dispersion system, adding 1% sodium carboxymethylcellulose solution and sodium dodecyl sulfate into water, stirring to form a uniform solution, adding nano titanium oxide powder, adding deionized water to 1kg, and dispersing for 3h by adopting a telecentric separation technology to obtain a nano titanium oxide dispersion liquid with the particle size of about 100nm, uniform size and good stability.
The nano zinc oxide composite dispersion prepared by the method has the titanium oxide particle size of about 100nm and is suspended in the solution in a monodisperse form; the nano titanium oxide dispersion liquid can not generate the phenomena of layering and agglomeration after being placed for more than 60 days.
Claims (8)
1. A preparation method of nano titanium oxide dispersion liquid for printing ink is characterized by comprising the following steps: the method comprises the following steps: 0.5 to 4 percent of dispersion stabilizer, 0.2 to 1 percent of surfactant and 5 to 30 percent of micron-sized titanium oxide powder, comprising the following preparation steps:
preparing a material before preparation, namely preparing a dispersion stabilizer into a 1% dispersion stabilizer solution for later use;
crushing the micron-sized titanium dioxide powder in a mechanical grinding mode until the particle size reaches the nanometer level; then, the user can use the device to perform the operation,
preparing an aqueous dispersion system, adding a dispersion stabilizer solution, a surfactant and nano titanium oxide powder into water according to the formula amount in the aqueous dispersion system for mixing, and increasing the absolute value of the electric double layer potential on the particle surface and the adsorption of a dispersing agent on the particle surface by double-shaft rotation of an upper shaft and a lower shaft in telecentric separation, so as to increase the repulsion force among particles and obtain the nano titanium oxide aqueous phase dispersion liquid with small size, high concentration and high stability.
2. The method for producing a nano titanium oxide dispersion liquid for ink according to claim 1, characterized in that: the dispersion stabilizer is at least one of polyvinyl alcohol and derivatives thereof, polyvinylpyrrolidone and derivatives thereof, cellulose and derivatives thereof, water-soluble chitosan and derivatives thereof, polyethylene glycols and carbomer, or a combination of more than two of the above substances.
3. The nano titanium oxide dispersion liquid for ink according to claim 1, characterized in that: the surfactant may have a carbon number of C 10 ~C 26 Sodium sulfate, sodium sulfonate, sulfuric acid ester salt, polyoxyethylene ether sulfate, and the like, and may be a combination thereof.
4. The method for producing the nano titanium oxide dispersion liquid for ink according to any one of claims 1 to 3, characterized in that: comprises the following steps: based on 1kg of the nano titanium oxide dispersion, the dispersion with the titanium oxide content of 10 percent is prepared, and the grain diameter of the adopted zinc oxide powder is about 1 micron, and the method comprises the following preparation steps:
preparing a material before preparation, namely preparing 1% solution of dispersion stabilizer carbomer for later use to prepare 1% carbomer solution for later use;
crushing the micron-sized titanium dioxide powder by adopting a mechanical grinding mode until the particle size of the nano titanium dioxide powder reaches about 500 nm; then, the user can use the device to perform the operation,
preparing an aqueous dispersion system: adding a carbomer solution with the concentration of 1% and a surfactant sodium dodecyl sulfate into water in a water dispersion system, stirring to form a uniform solution, then adding nano titanium oxide powder into deionized water according to the formula amount until the mixture is 1kg of water, mixing, and dispersing for 1 hour by a telecentric separation technology to obtain a nano titanium oxide water-phase dispersion liquid with the particle size of about 100nm, uniform size and good stability.
5. The method for producing the nano titanium oxide dispersion liquid for ink according to any one of claims 1 to 3, characterized in that: comprises 0.5 to 4 percent of dispersion stabilizer and 0.2 to 1 percent of surfactant, and is calculated by 1 kilogram of the nano titanium oxide composite dispersion liquid to prepare the dispersion liquid with the titanium oxide content of 15 percent, the grain diameter of the adopted titanium oxide powder is about 1 micron, and the preparation steps are as follows:
preparing materials before preparation: preparing carbomer into 1% carbomer solution with dispersion stabilizer;
crushing the micron-sized titanium dioxide powder in a mechanical grinding mode, and grinding the powder to the particle size of about 500nm to obtain nano titanium oxide powder; then, the user can use the device to perform the operation,
preparing an aqueous dispersion system: adding a carbomer solution with the concentration of 1 percent and a surfactant of sodium dodecyl polyoxyethylene ether sulfate into water in a water dispersion system, stirring to form a uniform solution, adding nano titanium oxide powder, adding deionized water to 1kg, and dispersing for 3 hours by adopting a telecentric separation technology to obtain a nano titanium oxide dispersion liquid with the particle size of about 100nm, uniform size and good stability.
6. The method for producing the nano titanium oxide dispersion liquid for ink according to any one of claims 1 to 3, characterized in that: a nano titanium oxide dispersion liquid for ink, comprising: 0.5 to 4 percent of dispersion stabilizer and 0.2 to 1 percent of surfactant, based on 1 kilogram of the nano titanium oxide composite dispersion, the dispersion with 25 percent of titanium oxide content is prepared, the grain diameter of the adopted titanium oxide powder is about 1 micron, and the preparation method comprises the following preparation steps:
preparing a material before preparation, namely preparing 1% polyvinylpyrrolidone solution from polyvinylpyrrolidone serving as a dispersion stabilizer for later use;
crushing and grinding micron-sized titanium dioxide powder to about 500nm of particle size by adopting a mechanical grinding mode to obtain nano titanium oxide powder; then, the user can use the device to perform the operation,
preparing a water dispersion system, adding 1% polyvinylpyrrolidone solution and surfactant lauryl sodium sulfate into water in the water dispersion system, stirring to form a uniform solution, adding nano titanium oxide powder, adding deionized water to 1kg, and dispersing for 2h by adopting a telecentric separation technology to obtain nano titanium oxide dispersion liquid with the particle size of about 80nm, uniform size and good stability.
7. The method for producing the nano titanium oxide dispersion liquid for ink according to any one of claims 1 to 3, characterized in that: a nano titanium oxide dispersion liquid for ink, comprising: 0.5 to 4 percent of dispersion stabilizer and 0.2 to 1 percent of surfactant, based on 1 kilogram of the nano titanium oxide dispersion, preparing the dispersion with the titanium oxide content of 25 percent, wherein the grain diameter of the adopted nano titanium oxide powder is about 1 micron, and the preparation method comprises the following preparation steps:
preparing a material before preparation, namely preparing 1% solution of sodium carboxymethylcellulose for later use;
grinding titanium dioxide powder to about 500nm by mechanical grinding to obtain nano titanium oxide powder;
preparing a water dispersion system, adding sodium carboxymethylcellulose solution with the concentration of 1% and sodium dodecyl sulfate into water, stirring to form uniform solution, adding nano titanium oxide powder, adding deionized water to 1kg, and dispersing for 3 hours by adopting a telecentric separation technology to obtain nano titanium oxide dispersion liquid with the particle size of about 100nm, uniform size and good stability.
8. A nano titanium oxide dispersion liquid for ink, obtained by the production method according to any one of claims 1 to 7, in which titanium oxide having a primary particle diameter of 30nm to 100nm is suspended in a solution in a monodispersed form; the nano titanium oxide dispersion liquid can not generate the phenomena of layering and caking after being placed for more than 60 days.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116751491A (en) * | 2023-06-15 | 2023-09-15 | 亚士创能科技(上海)股份有限公司 | Real stone paint emulsion and preparation method and application thereof |
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| CN105400266A (en) * | 2015-12-15 | 2016-03-16 | 上海纳旭实业有限公司 | Preparation method for nano zinc phosphate-titanium dioxide composite dispersion liquid for anticorrosive paint |
| CN105440740A (en) * | 2015-12-15 | 2016-03-30 | 上海纳旭实业有限公司 | Preparation method of nanometer aluminum triphosphate-titanium dioxide composite dispersion liquid for anticorrosion paint |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105400266A (en) * | 2015-12-15 | 2016-03-16 | 上海纳旭实业有限公司 | Preparation method for nano zinc phosphate-titanium dioxide composite dispersion liquid for anticorrosive paint |
| CN105440740A (en) * | 2015-12-15 | 2016-03-30 | 上海纳旭实业有限公司 | Preparation method of nanometer aluminum triphosphate-titanium dioxide composite dispersion liquid for anticorrosion paint |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116751491A (en) * | 2023-06-15 | 2023-09-15 | 亚士创能科技(上海)股份有限公司 | Real stone paint emulsion and preparation method and application thereof |
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