WO2016093014A1 - 無機微粒子分散液の製造方法、該分散液を含む硬化性組成物、及びその硬化物 - Google Patents
無機微粒子分散液の製造方法、該分散液を含む硬化性組成物、及びその硬化物 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/30—Esters containing oxygen in addition to the carboxy oxygen containing aromatic rings in the alcohol moiety
- C08F220/301—Esters containing oxygen in addition to the carboxy oxygen containing aromatic rings in the alcohol moiety and one oxygen in the alcohol moiety
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G25/00—Compounds of zirconium
- C01G25/02—Oxides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
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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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/07—Aldehydes; Ketones
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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
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
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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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
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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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5425—Silicon-containing compounds containing oxygen containing at least one C=C bond
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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
- 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
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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
- 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
- C09C3/04—Physical treatment, e.g. grinding or treatment with ultrasonic vibrations
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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
- 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
- C09C3/12—Treatment with organosilicon compounds
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
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- C—CHEMISTRY; METALLURGY
- 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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- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
Definitions
- the present invention relates to a method for producing an inorganic fine particle dispersion using a media-type wet disperser, a curable composition containing the inorganic fine particle dispersion obtained by this production method, and an optical material obtained by curing the curable composition.
- the present invention relates to a cured product for members.
- the front brightness of the backlight can be improved by increasing the refractive index of the cured resin layer. Since the lens pattern can be made shallower as the refractive index becomes higher, it is desirable to increase the refractive index of the cured resin because the mold can be easily released from the mold and productivity can be improved. Yes.
- a method for obtaining a zirconia particle dispersion a method of dispersing with a medium of 0.05 mm or more using an acetylacetone-based dispersion aid for transparent dispersion is described (for example, see Patent Document 3). According to this method, a zirconia particle dispersion having a small dispersed particle diameter can be obtained.
- an acetylacetone-based dispersion aid is used, there is a drawback that it is liable to cause deterioration or coloring due to heat or light.
- Inorganic fine particle dispersion characterized in that the silane coupling agent is supplied last among the raw materials to be supplied to the media-type wet disperser, ie, zirconium oxide nanoparticles, dispersant, dispersion medium, and silane coupling agent.
- the manufacturing method has also been proposed (see, for example, Patent Document 4). According to the production method of Patent Document 4, it is possible to produce a cured product for an optical member that is highly transparent, stable against heat, and excellent in yellowing resistance. However, this method has a problem in that overdispersion occurs unless a medium having a small particle diameter of 30 ⁇ m or less is used and the mild dispersion condition for lowering the solid content concentration during dispersion is used.
- Patent Documents There has also been proposed a production method in which each raw material to be supplied to a disperser, that is, agglomerates of metal oxide nanoparticles, a dispersant, a metal alkoxide, and a solvent are all mixed and dispersed before crushing (for example, Patent Documents). 5).
- Patent Document 5 it is described that the amount of the dispersant can be reduced by the production method, and problems such as bleed out and hardness reduction can be solved. There is a problem that the production efficiency becomes low due to the lengthening.
- the problem to be solved by the present invention is to obtain a cured product for an optical member having a high refractive index by obtaining a stable dispersion with a small amount of a dispersant, in view of the above background art.
- the disperser that can be used at the same time is very expensive, without using a medium with a small particle size, and without significantly overdispersing under high solid content conditions, greatly reducing the dispersion process time It is an object of the present invention to provide a method for producing an inorganic fine particle dispersion.
- the present inventors have used the media-type wet disperser to supply the dispersant at the end when dispersing the zirconium oxide nanoparticles. I found that it can be solved.
- the present invention is a method for producing an inorganic fine particle dispersion using a media type wet disperser, and when supplying the following (A) to (D) to the wet disperser, at least (D) is supplied last.
- the present invention provides a method for producing an inorganic fine particle dispersion.
- this invention provides the curable composition containing the inorganic fine particle dispersion liquid manufactured by the said manufacturing method, and the hardened
- a cured product for an optical member having a high refractive index can be obtained by providing a stable dispersion even with a small amount of dispersant by providing a production method having the above characteristics. .
- the production method is very expensive, and at the same time, the dispersion process time can be reduced without using a medium having a small particle diameter, which can be used in a limited amount, and without overdispersing under a high solid content condition. It can be greatly shortened.
- the media type wet disperser used in the present invention generally known ones can be used without limitation.
- examples of such a disperser include a bead mill (Star Mill LMZ-015 manufactured by Ashizawa Finetech Co., Ltd., Ultra Apex Mill UAM-015 manufactured by Kotobuki Industries Co., Ltd.), and is used in the present invention.
- the media type wet disperser is not limited to this.
- the medium used in the present invention is not particularly limited as long as it is a generally known bead, but preferred examples include zirconia, alumina, silica, glass, silicon carbide, and silicon nitride.
- the average particle size of the media is preferably 50 to 500 ⁇ m, more preferably 100 to 200 ⁇ m. When the particle diameter is 50 ⁇ m or more, the impact force on the raw material powder is appropriate, and an excessive time is not required for dispersion. On the other hand, if the particle diameter of the media is 500 ⁇ m or less, the impact force against the raw material powder is appropriate, so that an increase in the surface energy of the dispersed particles can be suppressed and reaggregation can be prevented.
- a medium having a large particle size with a large impact force is used, and a medium having a small particle size that is difficult to re-aggregate after the particle size of the dispersed particles becomes small is used.
- the dispersion process time can be shortened.
- the (A) zirconium oxide nanoparticles used in the present invention generally known particles can be used, and the shape of the particles is not particularly limited, but for example, spherical, hollow, porous, It is rod-shaped, plate-shaped, fibrous, or amorphous, preferably spherical.
- the primary particle size is preferably 1 to 50 nm, particularly 1 to 30 nm.
- the crystal structure is not particularly limited, but a monoclinic system is preferable.
- the (B) silane coupling agent used in the present invention may include, but is not limited to, the following.
- Examples of (meth) acryloyloxy-based silane coupling agents include 3- (meth) acryloyloxypropyltrimethylsilane, 3- (meth) acryloyloxypropylmethyldimethoxysilane, 3- (meth) acryloyloxypropyltrimethoxysilane, 3 -(Meth) acryloyloxypropylmethyldiethoxysilane, 3- (meth) acryloyloxypropyltriethoxysilane are exemplified.
- Examples of the acryloxy-based silane coupling agent include 3-acryloxypropyltrimethoxysilane.
- vinyl silane coupling agents include allyltrichlorosilane, allyltriethoxysilane, allyltrimethoxysilane, diethoxymethylvinylsilane, trichlorovinylsilane, vinyltrichlorosilane, vinyltrimethoxysilane, vinyltriethoxysilane, vinyltris (2- Illustrative is methoxyethoxy) silane.
- Epoxy silane coupling agents include diethoxy (glycidyloxypropyl) methylsilane, 2- (3,4 epoxycyclohexyl) ethyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, and 3-glycidoxypropylmethyl. Examples include diethoxysilane and 3-brisidoxypropyltriethoxysilane. Examples of the styrene-based silane coupling agent include p-styryltrimethoxysilane.
- amino silane coupling agents include N-2 (aminoethyl) 3-aminopropylmethyldimethoxysilane, N-2 (aminoethyl) 3-aminopropyltrimethoxysilane, and N-2 (aminoethyl) 3-amino.
- An example is methoxysilane.
- Examples of the ureido silane coupling agent include 3-ureidopropyltriethoxysilane.
- Examples of the chloropropyl silane coupling agent include 3-chloropropyltrimethoxysilane.
- Examples of mercapto-based silane coupling agents include 3-mercaptopropylmethyldimethoxysilane and 3-mercaptopropyltrimethinesilane.
- Examples of the sulfide-based silane coupling agent include bis (triethoxysilylpropyl) tetrasulfide.
- Examples of the isocyanate-based silane coupling agent include 3-isocyanatopropyltriethoxysilane.
- Examples of the aluminum coupling agent include acetoalkoxyaluminum diisopropylate.
- silane coupling agents those having a (meth) acryloyloxy group, a glycidyl group and an epoxycyclohexyl group are preferred, and 3- (meth) acryloyloxypropyltrimethoxysilane is most preferred.
- the (C) dispersion medium used in the present invention is not particularly limited as long as it can disperse the (A) zirconium oxide nanoparticles, but an organic solvent having a viscosity at 25 ° C. of 200 mPa ⁇ s or less, a (meth) acrylic monomer. Or (meth) acrylate oligomers are preferably used alone or in combination.
- the viscosity at 25 ° C. is 200 mPa ⁇ s or less, it is easy to separate the media in the disperser because the viscosity at the time of dispersion is appropriate.
- the measurement of the viscosity in this invention can be normally measured by a well-known method, and a B-type viscosity meter can be mentioned as a measuring device used.
- the organic solvent is preferably ethanol, isopropanol, butanol, cyclohexanol, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, ethyl acetate, propyl acetate, butyl acetate, methyl cellosolve, cellosolve, butyl cellosolve, cellosolve acetate, tetrahydrofuran, 1,
- Examples include 4-dioxane, n-hexane, cyclopentane, toluene, xylene, N, N-dimethylformamide, N, N-dimethylacetamide, dichloromethane, trichloroethane, trichloroethylene, hydrofluoroether, and the like.
- Examples of the (meth) acrylic monomer include phenoxyethyl acrylate, phenoxy 2-methylethyl acrylate, phenoxyethoxyethyl acrylate, 3-phenoxy-2-hydroxypropyl acrylate, 2-phenylphenoxyethyl acrylate, benzyl acrylate, phenyl acrylate, Aromatic ring-containing acrylates such as phenylbenzyl acrylate and paracumylphenoxyethyl acrylate have a high refractive index and can be preferably used.
- alicyclic skeleton-containing acrylates such as 2-acryloyloxyethylhexahydrophthalate, cyclohexyl acrylate, dicyclopentanyl acrylate, tetrahydrofurfuryl acrylate, dicyclopentanyl methacrylate, and isobornyl methacrylate have a high Abbe number and are optical materials. Can be preferably used.
- (Poly) ethylene glycol di (meth) acrylate, (poly) propylene glycol di (meth) acrylate, neopentyl glycol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, 1,9-nonane 3 such as bifunctional (meth) acrylate such as diol di (meth) acrylate, glycerol tri (meth) acrylate, trimethylolpropane tri (meth) acrylate, tri (meth) acrylate phosphate, pentaerythritol tetra (meth) acrylate, etc.
- Tetrafunctional (meth) acrylates and their ethylene oxide and propylene oxide modified products can improve the height of the cured product and are preferably used.
- an epoxy monomer can also be used as the (C) dispersion medium of the present invention.
- epoxy compounds such as butyl glycidyl ether, ethylene glycol diglycidyl ether, propylene glycol diglycidyl ether, neopentyl glycol diglycidyl ether, trimethylolpropane triglycidyl ether, and 3,4-epoxycyclohexenylmethyl-3 ′, 4 Cyclohexene oxide compounds such as' -epoxycyclohexene carboxylate, 1,2-epoxy-4-vinylcyclohexane, 1,2: 8,9 diepoxy limonene, 3,4-epoxycyclohexylmethyl methacrylate can be preferably used.
- Examples of the (meth) acrylate oligomer include epoxy (meth) acrylate and urethane (meth) acrylate.
- an epoxy (meth) acrylate for example, an epoxy (meth) acrylate obtained by adding a monomer having a (meth) acryloyl group and a carboxyl group to a compound having an aromatic ring skeleton and an epoxy group in the molecular structure. Is mentioned.
- an aromatic ring skeleton in the molecular structure the compound has a high refractive index.
- urethane (meth) acrylate examples include a urethane (meth) acrylate obtained by reacting a polyisocyanate compound with a (meth) acrylate compound having one hydroxyl group in the molecular structure, a polyisocyanate compound, and a molecular structure.
- examples thereof include urethane (meth) acrylate obtained by reacting a (meth) acrylate compound having one hydroxyl group therein and a polyol compound.
- the urethane (meth) acrylate is a compound having a high refractive index by introducing an aromatic ring skeleton into the molecular structure.
- Either or both of the polyisocyanate compound and the (meth) acrylate compound having one hydroxyl group in the molecular structure can be obtained by using those having an aromatic ring skeleton in the molecular structure.
- the order of supplying the (A) to (C) to the disperser is not particularly limited.
- the (D) dispersant is not particularly limited as long as it is a compound containing a group having affinity with (A) zirconium oxide nanoparticles, but preferred dispersants include carboxylic acid, sulfuric acid, sulfonic acid or phosphoric acid, Or the anionic dispersing agent which has acid groups, such as those salts, can be mentioned. Among these, a phosphate ester dispersant is preferable.
- the amount of the dispersant (D) used is not particularly limited, but is 0.1 to 30% by mass, preferably 0.5 to 15% by mass, based on the zirconium oxide nanoparticles (A). In addition, a dispersion having good stability can be obtained even if the amount is smaller than the amount of dispersant used conventionally.
- the ratio of the total mass of the (A) zirconium oxide nanoparticles and the (D) dispersant is 20% by mass or more. It is preferable from the viewpoint that the dispersion process time can be shortened and the stability of the dispersion liquid is excellent, and it is particularly preferable to adjust it in the range of 25% by mass to 35% by mass.
- the curable composition of the present invention includes an inorganic fine particle dispersion obtained by the production method of the present invention described above.
- the curable composition of the present invention contains a resin, a filler, a solvent, a photopolymerization initiator, a sensitizer, and a polymerization start which may contain the inorganic fine particle dispersion obtained by the present invention and may further have a reactive group.
- the curable composition of the present invention can be cured by heat or active energy rays.
- the active energy ray can be used without particular limitation as long as it is an active energy ray that causes the curable composition of the present invention to cure, but it is particularly preferable to use ultraviolet rays.
- UV light sources include fluorescent chemical lamps, black lights, low pressure, high pressure, ultrahigh pressure mercury lamps, metal halide lamps, and sunlight.
- the irradiation intensity of the ultraviolet rays may be constant from beginning to end, or the physical properties after curing can be finely adjusted by changing the intensity during the curing.
- active energy rays such as visible light and electron beams can also be used as active energy rays.
- the curable composition of the present invention has an intrinsic spectral sensitivity in the range of 200 to 400 nm. In the absence of a photopolymerization initiator, the energy of a normally used energy beam, for example, an energy value of 20 mW / cm 2 is obtained. It can be mentioned, but is not limited to this.
- the curable composition of the present invention is cured by irradiation with ultraviolet rays or visible light in the absence of a photopolymerization initiator, but various photopolymerization initiators are added to perform the curing reaction more efficiently. It can also be cured.
- Photopolymerization initiators can be broadly classified into two types: intramolecular bond cleavage type and intramolecular hydrogen abstraction type.
- Examples of the intramolecular bond cleavage type photopolymerization initiator include diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, benzyldimethyl ketal, 1- (4-isopropylphenyl)- 2-hydroxy-2-methylpropan-1-one, 4- (2-hydroxyethoxy) phenyl- (2-hydroxy-2-propyl) ketone, 1-hydroxycyclohexyl-phenylketone, 2-methyl-2-morpholino ( Acetophenones such as 4-thiomethylphenyl) propan-1-one, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butanone; benzoins such as benzoin, benzoin methyl ether, benzoin isopropyl ether; 2,4,6-trimethylbenzoindiph
- Such acylphosphine oxide nil phosphine oxide; benzyl, methylphenyl glyoxy
- examples of the intramolecular hydrogen abstraction type photopolymerization initiator include benzophenone, methyl 4-phenylbenzophenone, 4,4'-dichlorobenzophenone, hydroxybenzophenone, 4-benzoyl-4'-methyl, o-benzoylbenzoate.
- Benzophenones such as diphenyl sulfide, acrylated benzophenone, 3,3 ', 4,4'-tetra (t-butylperoxycarbonyl) benzophenone, 3,3'-dimethyl-4-methoxybenzophenone; 2-isopropylthioxanthone, 2 Thioxanthone series such as 1,4-dimethylthioxanthone, 2,4-diethylthioxanthone, 2,4-dichlorothioxanthone; aminobenzophenone series such as Michler-ketone and 4,4'-diethylaminobenzophenone; 10-butyl 2-chloro-acridone, 2-ethyl anthraquinone, 9,10-phenanthrenequinone, camphorquinone, and the like.
- the blending amount is preferably in the range of 0.01 to 10% by mass of the curable composition.
- the curable composition of the present invention can be used in combination with a photosensitizer in order to carry out the curing reaction more efficiently.
- a photosensitizer include triethanolamine, methyldiethanolamine, triisopropanolamine, methyl 4-dimethylaminobenzoate, ethyl 4-dimethylaminobenzoate, isoamyl 4-dimethylaminobenzoate, benzoic acid ( Examples include amines such as 2-dimethylamino) ethyl, 4-dimethylaminobenzoic acid (n-butoxy) ethyl and 2-dimethylhexyl 4-dimethylaminobenzoate.
- the blending amount is preferably in the range of 0.01 to 10% by mass in the curable composition.
- the curable composition of the present invention includes a non-reactive compound, an inorganic filler, an organic filler, a coupling agent, a tackifier, an antifoaming agent, a leveling agent, a plasticizer, and an antioxidant depending on the application.
- An agent, an ultraviolet absorber, a flame retardant, a pigment, a dye, and the like can be appropriately used in combination.
- the cured product obtained in the present invention can be preferably used as an optical member, for example, for an antireflection film such as a plastic lens, a brightness enhancement film (prism sheet), a film-type liquid crystal element, a touch panel, and a plastic optical component.
- an antireflection film such as a plastic lens, a brightness enhancement film (prism sheet), a film-type liquid crystal element, a touch panel, and a plastic optical component.
- Example 1 Zirconium oxide nanoparticle powder (trade name: UEP-100, manufactured by Daiichi Rare Element Chemical Industries, Ltd., primary particle diameter 11 nm) 166.5 g, 3- (meth) acryloyloxypropyltrimethoxysilane (trade name: KBM) -503 (manufactured by Shin-Etsu Chemical Co., Ltd.) 25.0 g and methyl ethyl ketone (hereinafter referred to as MEK) 415.5 g were mixed and stirred with a dispersion stirrer for 30 minutes for coarse dispersion.
- MEK methyl ethyl ketone
- the obtained mixed liquid was subjected to a dispersion treatment using a zirconia bead having a particle diameter of 100 ⁇ m with a star mill LMZ-015 manufactured by Ashizawa Finetech Co., Ltd. which is a media type wet disperser. While confirming the particle diameter in the middle, the dispersion treatment was performed for 100 minutes, and then 17.5 g of a dispersant (trade name: DISPERBYK-111, manufactured by BYK Chemie, phosphate ester) was added and mixed. A dispersion of Example 1 was obtained by a dispersion treatment for minutes. In addition, the particle diameter measurement of the sample in the middle of not adding the dispersant was performed after adding a prescribed amount of the dispersant and stirring.
- a dispersant trade name: DISPERBYK-111, manufactured by BYK Chemie, phosphate ester
- Example 2 Dispersion treatment was carried out under the same conditions as in Example 1 except that the dispersant of Example 1 was changed to 16.7 g of Disparon PW-36 (manufactured by Enomoto Kasei Co., Ltd., phosphate ester type).
- Example 3 The dispersion treatment was performed under the same conditions as in Example 1 except that the silane coupling agent in Example 1 was changed to 33.3 g and the dispersant was changed to 26.2 g.
- Comparative Example 1 Zirconium oxide nanoparticle powder (trade name: UEP-100, manufactured by Daiichi Rare Element Chemical Industries, Ltd., primary particle diameter 11 nm) 166.5 g, 3- (meth) acryloyloxypropyltrimethoxysilane (trade name: KBM) -503, manufactured by Shin-Etsu Chemical Co., Ltd.) 25.0 g, dispersing agent (trade name: DISPERBYK-111, manufactured by Big Chemie) 17.5 g, MEK 415.5 g were mixed, and the mixture was stirred for 30 minutes with a dispersion stirrer. went.
- dispersing agent trade name: DISPERBYK-111, manufactured by Big Chemie
- the obtained mixed liquid was subjected to a dispersion treatment using a zirconia bead having a particle diameter of 100 ⁇ m with a star mill LMZ-015 manufactured by Ashizawa Finetech Co., Ltd. which is a media type wet disperser.
- the dispersion process was advanced while confirming the particle diameter on the way, but the particle diameter increased 200 minutes after the treatment, resulting in overdispersion.
- Comparative Example 2 The dispersion treatment was performed under the same conditions as in Comparative Example 1 except that the silane coupling agent of Comparative Example 1 was changed to 33.3 g and the dispersant was changed to 26.2 g. A dispersion of Comparative Example 2 was obtained by a dispersion treatment with a residence time of 400 minutes.
- Comparative Example 3 Zirconium oxide nanoparticle powder (trade name: UEP-100, manufactured by Daiichi Rare Element Chemical Co., Ltd., primary particle diameter 11 nm) 166.5 g, dispersant (trade name: DISPERBYK-111, manufactured by Big Chemie) 5 g and 415.5 g of MEK were mixed and stirred with a dispersion stirrer for 30 minutes to perform coarse dispersion.
- the obtained mixed liquid was subjected to a dispersion treatment using a zirconia bead having a particle diameter of 100 ⁇ m with a star mill LMZ-015 manufactured by Ashizawa Finetech Co., Ltd. which is a media type wet disperser.
- Measurement example ⁇ Measurement of dispersed particle size of zirconium oxide nanoparticles in dispersion>
- the dispersed particle size of the zirconium oxide nanoparticles in the dispersion was measured at 25 ° C. using a particle size distribution analyzer ELSZ-1000 manufactured by Otsuka Electronics Co., Ltd.
- the median diameter was measured on a volume basis by diluting to a zirconium oxide concentration of 0.1% by mass with a dispersion medium equivalent to the dispersion.
- Zirconium oxide nanoparticles UEP-100
- Disparon PW-36 (trade name, manufactured by Enomoto Kasei Co., Ltd.)
- DISPERBYK-111 trade name, manufactured by Big Chemie
- KBM-503 (trade name, manufactured by Shin-Etsu Chemical Co., Ltd.)
- Example 4 Preparation of curable composition (1) Fluorene acrylate (trade name: OGSOL EA-0200, Osaka Gas Chemical Co., Ltd.) was used as a UV monomer in 93.7 parts by mass of the zirconium oxide dispersion prepared in Example 1. 4.7 parts by mass of 2-phenylphenoxy acrylate (trade name: M1142, manufactured by Miwon Specialty Chemical Co.) was added, and volatile components were removed under reduced pressure using an evaporator.
- Fluorene acrylate trade name: OGSOL EA-0200, Osaka Gas Chemical Co., Ltd.
- 2-phenylphenoxy acrylate trade name: M1142, manufactured by Miwon Specialty Chemical Co.
- photopolymerization initiator 1.6 parts by mass of 2,4,6-trimethylbenzoylphenylphosphine oxide (LUCIRIN TPO, manufactured by BASF), 1-hydroxycyclohexyl-phenylketone (trade name: Irgacure 184 (manufactured by BASF) 0.5 parts by mass was added to prepare a photocurable composition (1).
- LOCIRIN TPO 2,4,6-trimethylbenzoylphenylphosphine oxide
- Irgacure 184 manufactured by BASF
- Example 5 Preparation of curable composition (2) Using 93.6 parts by mass of the zirconium oxide dispersion prepared in Example 2, a photocurable composition (2) was prepared in the same manner as in Example 4. did.
- Example 6 Preparation of curable composition (3) A photocurable composition (3) was prepared in the same manner as in Example 4 using 96.3 parts by mass of the zirconium oxide dispersion prepared in Example 3. did.
- Comparative Example 4 Preparation of Curable Composition (4) A photocurable composition (4) was prepared in the same manner as in Example 4 using 96.3 parts by mass of the zirconium oxide dispersion prepared in Comparative Example 2. did.
- Example 7 Preparation of cured product (1)
- the photocurable composition (1) obtained in Example 4 was coated on a glass substrate with an applicator, and was 1000 mJ / cm 2 in air using a 120 W / cm high-pressure mercury lamp. Photocured to obtain a cured film (1) having a thickness of about 100 ⁇ m.
- Comparative Example 5 In the same manner as in Example 7, a cured film (4) was obtained using the photocurable composition (4) obtained in Comparative Example 4.
- the inorganic fine particle dispersion obtained by the production method of the present invention can be a cured product having a high refractive index by heat or ultraviolet irradiation, and the cured product can be suitably used as an optical member.
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Abstract
Description
(A)酸化ジルコニウムナノ粒子
(B)シランカップリング剤
(C)分散媒
(D)分散剤
本発明に用いられるメディア式湿式分散機は、通常公知のものを制限なく使用することができる。このような分散機としては、例えば、ビーズミル(アシザワファインテック株式会社製スターミルLMZ-015、寿工業(株)製ウルトラアペックスミルUAM-015等)を挙げることができるが、本発明に使用されるメディア式湿式分散機はこれに限らない。
酸化ジルコニウムナノ粒子の粉体(商品名:UEP-100、第一稀元素化学工業株式会社製、一次粒子径11nm)166.5g、3-(メタ)アクリロイルオキシプロピルトリメトキシシラン(商品名:KBM-503、信越化学工業株式会社製)25.0g、メチルエチルケトン(以下、MEK)415.5gを混合し、分散攪拌機で30分間攪拌し、粗分散を行った。得られた混合液を、メディア式湿式分散機であるアシザワファインテック株式会社製スターミルLMZ-015で粒子径100μmのジルコニアビーズを用いて分散処理した。途中の粒子径を確認しながら、滞留時間100分の分散処理を行った後、分散剤(商品名:DISPERBYK-111、ビックケミー社製、燐酸エステル系)17.5gを添加混合して、更に20分間の分散処理により実施例1の分散液を得た。尚、分散剤を添加していない途中のサンプルの粒子径測定は、規定量の分散剤を添加し、攪拌した後に行った。
実施例1の分散剤をディスパロンPW-36(楠本化成株式会社製、燐酸エステル系)16.7gに変更した以外は実施例1と同じ条件で分散処理を行った。
実施例1のシランカップリング剤を33.3g、分散剤を26.2gに変更した以外は、実施例1と同じ条件で分散処理を行った。
酸化ジルコニウムナノ粒子の粉体(商品名:UEP-100、第一稀元素化学工業株式会社製、一次粒子径11nm)166.5g、3-(メタ)アクリロイルオキシプロピルトリメトキシシラン(商品名:KBM-503、信越化学工業株式会社製)25.0g、分散剤(商品名:DISPERBYK-111、ビックケミー社製)17.5g、MEK415.5gを混合し、分散攪拌機で30分間攪拌し、粗分散を行った。得られた混合液を、メディア式湿式分散機であるアシザワファインテック株式会社製スターミルLMZ-015で粒子径100μmのジルコニアビーズを用いて分散処理した。途中の粒子径を確認しながら分散処理を進めたが、処理200分後の粒子径が増大し過分散となった。
比較例1のシランカップリング剤を33.3g、分散剤を26.2gに変更した以外は、比較例1と同じ条件で分散処理を行った。滞留時間400分の分散処理により比較例2の分散液を得た。
酸化ジルコニウムナノ粒子の粉体(商品名:UEP-100、第一稀元素化学工業株式会社製、一次粒子径11nm)166.5g、分散剤(商品名:DISPERBYK-111、ビックケミー社製)17.5g、MEK415.5gを混合し、分散攪拌機で30分間攪拌し、粗分散を行った。得られた混合液を、メディア式湿式分散機であるアシザワファインテック株式会社製スターミルLMZ-015で粒子径100μmのジルコニアビーズを用いて分散処理した。分散処理開始直後から60分にかけて、3-メタクロキシプロピルトリメトキシシラン(商品名:KBM-503、信越化学工業株式会社製)25.0gを一定速度で添加混合して、分散処理を続けた。途中の粒子径を確認しながら分散処理を進めたが、処理250分後の粒子径が増大し過分散となった。
作製1日後(25℃保管)の分散液中の酸化ジルコニウムナノ粒子の分散粒径を、大塚電子株式会社製の粒度分布測定装置ELSZ-1000を用いて25℃で測定した。分散液と同等の分散媒で酸化ジルコニウム濃度0.1質量%に希釈して、メジアン径を体積基準で測定した。
注2)ディスパロンPW-36(商品名、楠本化成株式会社製)
注3)DISPERBYK-111(商品名、ビックケミー社製)
注4)KBM-503(商品名、信越化学工業株式会社製)
実施例1で作製した酸化ジルコニウムの分散液93.7質量部にUVモノマーとして、フルオレンアクリレート(商品名:OGSOL EA-0200、大阪ガスケミカル株式会社製)4.7質量部、2-フェニルフェノキシアクリレート(商品名:M1142、Miwon Specialty Chemical社製)20.5質量部を加え、エバポレーターで揮発成分を減圧除去した。この得られた組成物に光重合開始剤として、2,4,6-トリメチルベンゾイルフェニルフォスフィンオキサイド(LUCIRIN TPO、BASF社製)1.6質量部、1-ヒドロキシシクロヘキシル-フェニルケトン(商品名:イルガキュア184、BASF社製)0.5質量部を添加して光硬化性組成物(1)を調製した。
実施例2で作製した酸化ジルコニウムの分散液93.6質量部を用いて、実施例4と同様にして光硬化性組成物(2)を調製した。
実施例3で作製した酸化ジルコニウムの分散液96.3質量部を用いて、実施例4と同様にして光硬化性組成物(3)を調製した。
比較例2で作成した酸化ジルコニウムの分散液96.3質量部を用いて、実施例4と同様にして光硬化性組成物(4)を調製した。
実施例4で得た光硬化性組成物(1)をガラス基板にアプリケーターで塗装し、空気中、120W/cm高圧水銀ランプにて1000mJ/cm2で光硬化して厚さ約100μmの硬化膜(1)を得た。
実施例7と同様にして、実施例5、6において得られた光硬化性組成物(2)、(3)を用いて、それぞれ硬化膜(2)、(3)を得た。
実施例7と同様にして、比較例4において得られた光硬化性組成物(4)を用いて、硬化膜(4)を得た。
上記で得られた硬化物(硬化膜)について、アッベ屈折率計によって屈折率を、ヘーズメータで透明性を測定した。結果を、表2に示した。
Claims (9)
- メディア式湿式分散機を用いた無機微粒子分散液の製造方法であって、下記(A)~(D)を湿式分散機に供給するに際し、少なくとも(D)を最後に供給することを特徴とする無機微粒子分散液の製造方法。
(A)酸化ジルコニウムナノ粒子
(B)シランカップリング剤
(C)分散媒
(D)分散剤 - 分散液中の前記(A)酸化ジルコニウムナノ粒子と前記(D)分散剤の合計質量の割合が20質量%以上である請求項1に記載の無機微粒子分散液の製造方法。
- メディアの平均粒径が、50~500μmである請求項1又は2に記載の無機微粒子分散液の製造方法。
- 前記(D)分散剤が、リン酸、カルボン酸、硫酸、或いはスルホン酸、又はそれらの塩である酸基を有するアニオン系の分散剤である請求項1~3の何れか1項記載の無機微粒子分散液の製造方法。
- 前記(C)分散媒の粘度が、25℃において200mPa・s以下である請求項1~4の何れか1項記載の無機微粒子分散液の製造方法。
- 前記(C)分散媒が、有機溶剤、(メタ)アクリルモノマー、エポキシ系モノマー、及び(メタ)アクリレートオリゴマーからなる群から選ばれる1種以上の化合物である請求項1~5の何れか1項記載の無機微粒子分散液の製造方法。
- 前記(B)シランカップリング剤が、3-(メタ)アクリロイルオキシプロピルトリメトキシシラン、3-アクリロキシプロピルトリメトキシシラン、ビニルトリメトキシシラン、ビニルトリエトキシシラン、p-スチリルトリメトキシシラン、又は3-メルカプトプロピルメチルジメトキシシランである請求項1~6の何れか1項記載の無機微粒子分散液の製造方法。
- 請求項1~7の何れか1項記載の製造方法で得られる無機微粒子分散液を含むことを特徴とする硬化性組成物。
- 請求項8に記載の硬化性組成物を硬化して得られることを特徴とする光学部材用の硬化物。
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| JPWO2016163381A1 (ja) * | 2015-04-09 | 2018-02-01 | 三洋化成工業株式会社 | 活性エネルギー線硬化性組成物、硬化物、光学部品および活性エネルギー線硬化性組成物の製造方法 |
| WO2016163381A1 (ja) * | 2015-04-09 | 2016-10-13 | 三洋化成工業株式会社 | 活性エネルギー線硬化性組成物、硬化物、光学部品および活性エネルギー線硬化性組成物の製造方法 |
| JP2018119086A (ja) * | 2017-01-26 | 2018-08-02 | 株式会社日本触媒 | 無機粒子分散体 |
| JP2019038738A (ja) * | 2017-08-25 | 2019-03-14 | 堺化学工業株式会社 | 酸化ジルコニウム粒子の有機溶媒分散液 |
| JP7155749B2 (ja) | 2017-08-25 | 2022-10-19 | 堺化学工業株式会社 | 酸化ジルコニウム粒子の有機溶媒分散液 |
| US12152159B2 (en) | 2018-06-15 | 2024-11-26 | Nagase Chemtex Corporation | Inorganic oxide microparticle dispersion |
| WO2019240154A1 (ja) * | 2018-06-15 | 2019-12-19 | ナガセケムテックス株式会社 | 無機酸化物微粒子分散液 |
| JPWO2019240154A1 (ja) * | 2018-06-15 | 2021-07-29 | ナガセケムテックス株式会社 | 無機酸化物微粒子分散液 |
| JP7406485B2 (ja) | 2018-06-15 | 2023-12-27 | ナガセケムテックス株式会社 | 無機酸化物微粒子分散液 |
| KR20200077200A (ko) * | 2018-12-20 | 2020-06-30 | 주식회사 엘지화학 | 무기입자 분산액의 제조 방법 |
| KR102584137B1 (ko) | 2018-12-20 | 2023-10-04 | 주식회사 엘지화학 | 무기입자 분산액의 제조 방법 |
| JP2022188922A (ja) * | 2021-06-10 | 2022-12-22 | Dic株式会社 | 無機微粒子分散体、活性エネルギー線硬化性組成物、硬化物、積層体及び物品 |
| JP7721973B2 (ja) | 2021-06-10 | 2025-08-13 | Dic株式会社 | 無機微粒子分散体、活性エネルギー線硬化性組成物、硬化物、積層体及び物品 |
| US12441870B2 (en) | 2021-12-14 | 2025-10-14 | Kanto Denka Kogyo Co., Ltd. | ZrO2 dispersion liquid |
| JP2024517039A (ja) * | 2022-03-18 | 2024-04-19 | 山東国瓷功能材料股▲分▼有限公司 | ジルコニアモノマー分散液、その調製方法、光学フイルムおよびディスプレイ |
| JP7603806B2 (ja) | 2022-03-18 | 2024-12-20 | 山東国瓷功能材料股▲分▼有限公司 | ジルコニアモノマー分散液、その調製方法、光学フイルムおよびディスプレイ |
| WO2024004861A1 (ja) * | 2022-06-30 | 2024-01-04 | Dic株式会社 | 活性エネルギー線硬化性組成物およびその硬化物 |
| JPWO2024004861A1 (ja) * | 2022-06-30 | 2024-01-04 | ||
| JP7740554B2 (ja) | 2022-06-30 | 2025-09-17 | Dic株式会社 | 活性エネルギー線硬化性組成物およびその硬化物 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201625480A (zh) | 2016-07-16 |
| US20170342234A1 (en) | 2017-11-30 |
| KR102353577B1 (ko) | 2022-01-21 |
| CN107001067A (zh) | 2017-08-01 |
| US10253156B2 (en) | 2019-04-09 |
| KR20170097602A (ko) | 2017-08-28 |
| CN107001067B (zh) | 2019-09-20 |
| JP6083490B2 (ja) | 2017-02-22 |
| TWI620710B (zh) | 2018-04-11 |
| JPWO2016093014A1 (ja) | 2017-04-27 |
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