WO2012147886A1 - 六角板状酸化亜鉛粒子、その製造方法、それを配合した化粧料、放熱性フィラー、放熱性樹脂組成物、放熱性グリース及び放熱性塗料組成物 - Google Patents
六角板状酸化亜鉛粒子、その製造方法、それを配合した化粧料、放熱性フィラー、放熱性樹脂組成物、放熱性グリース及び放熱性塗料組成物 Download PDFInfo
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- A—HUMAN NECESSITIES
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- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0241—Containing particulates characterized by their shape and/or structure
- A61K8/0254—Platelets; Flakes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/27—Zinc; Compounds thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
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- A—HUMAN NECESSITIES
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- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
- A61Q1/02—Preparations containing skin colorants, e.g. pigments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
- A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
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- A—HUMAN NECESSITIES
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- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
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- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
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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
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/04—Compounds of zinc
- C09C1/043—Zinc oxide
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/66—Additives characterised by particle size
- C09D7/67—Particle size smaller than 100 nm
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
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- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
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- C01P2004/01—Particle morphology depicted by an image
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- C01P2004/04—Particle morphology depicted by an image obtained by TEM, STEM, STM or AFM
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- C—CHEMISTRY; METALLURGY
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
- C01P2004/22—Particle morphology extending in two dimensions, e.g. plate-like with a polygonal circumferential shape
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
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- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
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- 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
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- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
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Definitions
- the present invention relates to hexagonal plate-like zinc oxide particles, a method for producing the same, a cosmetic material, a heat dissipating filler, a heat dissipating resin composition, a heat dissipating grease, and a heat dissipating coating composition.
- zinc oxide particles are ultrafine particles having an average particle size of 0.1 ⁇ m or less as sunscreen ultraviolet screening agents, and the particle shape is not controlled to a hexagonal plate shape.
- the conventional ultrafine zinc oxide for shielding ultraviolet rays deteriorates the slipperiness, it is rarely used in cosmetics where a feeling of use is important, such as foundations and other makeup cosmetics.
- Such makeup cosmetics generally contain plate-like particles such as talc, mica and barium sulfate.
- fine particle zinc oxide having a particle size of 0.1 ⁇ m or less has been used.
- fine zinc oxide has a drawback that it has a poor soft focus effect and has no effect of blurring the base.
- Patent Documents 1 to 3 are known as hexagonal plate-like zinc oxide.
- the zinc oxide particles of Patent Document 1 are obtained by agglomerating fine zinc oxide in a hexagonal plate shape, good slipperiness cannot be obtained.
- the particle shape is not sufficiently controlled, the physical properties are likely to vary, and it is difficult to obtain a cosmetic material having a stable quality.
- Patent Document 2 describes thin plate-like zinc oxide particles, and describes use in cosmetics and industrial use. However, many of the flaky zinc oxide particles described in Patent Document 2 have a large particle diameter, and the particle shape has not been controlled cleanly and uniformly. In addition, since a basic zinc salt is obtained in the production method, a pyrolysis step such as calcination is required to obtain zinc oxide.
- Patent Document 3 describes hexagonal plate-like zinc oxide particles. However, since the zinc oxide particles of Patent Document 3 have a large variation in particle size and shape, and agglomeration also occurs, the above-described problems cannot be sufficiently improved.
- the present invention provides hexagonal plate-like zinc oxide particles that can be used as a cosmetic raw material, a heat-dissipating filler, etc., a method for producing the same, a cosmetic containing the same, a heat-dissipating filler, a heat-dissipating resin composition, and heat dissipation. It is an object to obtain a functional grease and a heat dissipating coating composition. Furthermore, it is also an object to obtain a method for producing zinc oxide particles that do not have a firing step.
- the primary particle diameter is 0.01 ⁇ m or more
- the aspect ratio is 2.5 or more
- the particles satisfying all of the following (1) and (2) are 50% or more.
- the hexagonal plate-like zinc oxide particles have a hexagonal surface.
- Dmin / Dmax ⁇ 0.3 Dmax means the maximum diagonal length among the three diagonal lines of the hexagonal surface of the hexagonal plate-like zinc oxide particles
- Dmin among the three diagonal lines of the hexagonal surface of the hexagonal plate-like zinc oxide particles, Means the minimum diagonal length
- the hexagonal plate-like zinc oxide particles of the present invention are preferably obtained by aging fine zinc oxide in an aqueous zinc salt solution.
- the present invention is also a method for producing the hexagonal plate-like zinc oxide particles, which comprises a step of aging fine zinc oxide in an aqueous zinc salt solution.
- the present invention is also a cosmetic comprising the hexagonal plate-like zinc oxide particles.
- the present invention also provides a heat dissipating filler comprising the hexagonal plate-like zinc oxide particles.
- This invention is also a heat-radiating resin composition characterized by containing the said hexagonal plate-like zinc oxide particle.
- the present invention is also a heat dissipating grease characterized by containing the hexagonal plate-like zinc oxide particles.
- the present invention also provides a heat dissipating coating composition containing the hexagonal plate-like zinc oxide particles.
- the zinc oxide particles of the present invention have excellent usability and ultraviolet shielding properties when blended in cosmetics. Moreover, it can have a soft focus effect or transparency according to a particle diameter. Further, when used as a heat dissipating filler, it exhibits excellent heat dissipating performance.
- FIG. 2 is a scanning electron micrograph of the zinc oxide particles of the present invention obtained in Example 1.
- FIG. 2 is a transmission electron micrograph of the zinc oxide particles of the present invention obtained in Example 1.
- FIG. 2 is a scanning electron micrograph of the zinc oxide particles of the present invention obtained in Example 2.
- FIG. 2 is a transmission electron micrograph of the zinc oxide particles of the present invention obtained in Example 2.
- FIG. 2 is an X-ray diffraction spectrum of the zinc oxide particles of the present invention obtained in Example 2.
- 4 is a transmission electron micrograph of the zinc oxide particles of the present invention obtained in Example 3.
- FIG. 4 is a transmission electron micrograph of the zinc oxide particles of the present invention obtained in Example 3 observed at a higher magnification.
- 4 is a transmission electron micrograph of the zinc oxide particles of the present invention obtained in Example 4.
- FIG. 4 is a transmission electron micrograph of the zinc oxide particles of the present invention obtained in Example 4 observed at a higher magnification.
- 6 is a transmission electron micrograph of the zinc oxide particles of the present invention obtained in Example 5.
- FIG. 6 is a transmission electron micrograph of the zinc oxide particles of the present invention obtained in Example 5 observed at a higher magnification.
- 6 is an X-ray diffraction spectrum of the zinc oxide particles of the present invention obtained in Example 5.
- 2 is a transmission electron micrograph of zinc oxide particles (fine zinc oxide manufactured by Sakai Chemical Industry Co., Ltd.) used in Comparative Example 1.
- 4 is a transmission electron micrograph of zinc oxide particles obtained in Comparative Example 2.
- 4 is a transmission electron micrograph of particles obtained in Comparative Example 3.
- 4 is an X-ray diffraction spectrum of particles obtained in Comparative Example 3.
- 4 is a transmission electron micrograph of zinc oxide particles obtained in Comparative Example 4.
- 6 is a transmission electron micrograph of zinc oxide particles obtained in Comparative Example 5.
- 6 is a transmission electron micrograph of zinc oxide particles obtained in Comparative Example 6.
- 6 is a transmission electron micrograph of zinc oxide particles (FINEX-50, manufactured by Sakai Chemical Industry Co., Ltd.) used in Comparative Example 7.
- 4 is a transmission electron micrograph of zinc oxide particles (FINEX-30 manufactured by Sakai Chemical Industry Co., Ltd.) used in Comparative Example 8. It is a schematic diagram which illustrates the parameter of (1) of Claim 1 of the zinc oxide particle of this invention.
- the hexagonal plate-like zinc oxide particles of the present invention can be suitably used as a powder for cosmetics because the primary particles have a shape close to a regular hexagon and have little aggregation.
- the primary particles have a shape close to a regular hexagon and have little aggregation.
- the hexagonal plate-like zinc oxide particles having a particle diameter of 0.3 ⁇ m or more are used, the haze is high and the action of blurring the base (so-called soft focus effect) is large.
- the hexagonal plate-like zinc oxide particles of the present invention having a particle diameter in the above range have a high haze while having almost the same total light transmittance as compared with general zinc oxide having a close particle diameter. This means that the light scattering efficiency is high, and the soft focus effect is high when applied to the skin.
- hexagonal plate-like zinc oxide particles having a size of 0.5 ⁇ m or more are used, they are very slippery and have excellent usability, and can be suitably used as particles in foundation applications.
- the crystal structure of zinc oxide is a wurtzite crystal structure, and the zinc ions are tetrahedrally surrounded by four oxygen ions.
- the distances between the four zinc ions and the oxygen ions in the actual zinc oxide crystal are not all equivalent, and the zinc ions that are parallel to the c-axis direction (the direction perpendicular to the plate surface; the thickness direction) Only the distance of oxygen ions is 0.1991 nm, which is slightly longer than the other bond distance of 0.1976 nm. For this reason, the coupling
- the heat conduction in the a-axis (plate surface direction) and b-axis direction (plate surface direction) is faster because the coupling distance is shorter than in the c-axis direction. That is, the hexagonal plate-like zinc oxide particles grown in the a-axis and b-axis directions obtained in the present invention exhibit a heat conduction anisotropy as the plate-like surface is oriented in parallel with the direction of heat transfer, and good heat Conductivity can be obtained. Therefore, it is estimated that it can be used suitably as a heat dissipation material.
- the zinc oxide particles of the present invention have a primary particle diameter of 0.01 ⁇ m or more, an aspect ratio of 2.5 or more, and satisfy all of the following (1) and (2) among 250 particles in a transmission electron micrograph. It is a hexagonal plate-like zinc oxide particle characterized by having a hexagonal-shaped surface that is 50% or more.
- Dmin / Dmax ⁇ 0.3 Dmax means the maximum diagonal length among the three diagonal lines of the hexagonal surface of the hexagonal plate-like zinc oxide particles
- Dmin among the three diagonal lines of the hexagonal surface of the hexagonal plate-like zinc oxide particles, Means the minimum diagonal length
- the hexagonal plate-like zinc oxide particles of the present invention are zinc oxide particles having a primary particle diameter of 0.01 ⁇ m or more and a clean hexagonal plate shape.
- the primary particle diameter is more preferably 0.02 ⁇ m or more, and further preferably 0.03 ⁇ m or more.
- the upper limit of the said primary particle diameter is not specifically limited, For example, it is preferable that it is 100 micrometers or less, It is more preferable that it is 50 micrometers or less, It is still more preferable that it is 25 micrometers or less.
- the primary particle diameter in the present specification is a fixed direction diameter (two parallel in a fixed direction across the particle) in a field of view of 2000 to 50000 times that of a transmission electron microscope (TEM, JEM-1200EX II, manufactured by JEOL Ltd.). Measure the diameter of 250 primary particles in a TEM photograph ( ⁇ m), which is defined as the particle spacing (measured in a certain direction for particles of any shape on the image). The average value of the cumulative distribution is obtained.
- the method for measuring the primary particle diameter is attached with FIG.
- the hexagonal plate-like zinc oxide particles of the present invention have an aspect ratio of 2.5 or more. That is, it is zinc oxide particles having a hexagonal plate shape, and with such a shape, particularly when used in cosmetics, slipping is good and an excellent feeling of use can be obtained.
- the aspect ratio of hexagonal plate-like zinc oxide particles in the present invention is a transmission electron microscope (TEM, JEM-1200EX II, manufactured by JEOL Ltd.) photograph or a scanning electron microscope (SEM, JSM-5600, manufactured by JEOL Ltd.)
- the hexagonal plate-like zinc oxide particles with the hexagonal surface facing toward the front have a fixed diameter (the distance between two parallel lines in a certain direction across the particle;
- the average value of the particle diameter ( ⁇ m) defined by 250 particles measured with the hexagonal surface of the particle facing forward is L, and the side of the hexagonal plate-like zinc oxide particles is on the front
- the thickness ( ⁇ m) length of the shorter side of the rectangle) measured for 250 particles is T, and the ratio of these values; This is a value obtained as L / T.
- the aspect ratio measurement method is attached with FIG.
- the aspect ratio is more preferably 2.7 or more, and still more preferably 3.0 or more
- the zinc oxide particles of the present invention have a hexagonal surface in which particles satisfying all of the following (1) and (2) out of 250 particles in a transmission electron micrograph are 50% or more.
- (1) Have a hexagonal surface (2) Dmin / Dmax ⁇ 0.3 Dmax: means the maximum diagonal length among the three diagonal lines of the hexagonal surface of the hexagonal plate-like zinc oxide particles Dmin: among the three diagonal lines of the hexagonal surface of the hexagonal plate-like zinc oxide particles, Means the minimum diagonal length
- Dmin / Dmax means the deviation of the regular hexagonal diagonal when Dmax is the length of the diagonal of the regular hexagon. The closer the value is to 1, the smaller the deviation from the regular hexagon is. Is big.
- Dmin / Dmax is 0.3 or more, preferably 0.5 or more, and more preferably 0.7 or more.
- the three diagonal lines are B, C, D, E, and F in order from the vertex adjacent to A, where A is one vertex of the hexagon on the hexagonal surface.
- the diagonal line having the maximum length is shown.
- the length of the diagonal line was Dmax, and the length of the diagonal line having the minimum length was Dmin.
- each parameter was measured based on a transmission electron micrograph and Dmax and Dmin were measured with a ruler.
- the parameters (1) and (2) described above are measured for 250 particles in the transmission electron micrograph. In the above measurement, not only particles observed as hexagonal surfaces in the image but also all particles observed as side surfaces are counted. In the zinc oxide particles of the present invention, 50% or more of the 250 particles in the transmission electron micrograph satisfy the parameters (1) and (2) described above. By making the zinc oxide particles satisfying the above parameters, particularly good performance is obtained.
- the hexagonal plate-like zinc oxide particles of the present invention of the 250 particles in the transmission electron micrograph, 50% or more of the particles satisfy the parameters (1) and (2) described above. This is because at least 50% does not satisfy the above-described effect unless the above parameters are satisfied. More preferably, 55% or more satisfies the above parameters, and 60% or more preferably satisfies the above parameters.
- the method for producing the zinc oxide particles having the above-described shape is not particularly limited, and can be obtained, for example, by a production method including a step of aging fine zinc oxide in an aqueous zinc salt solution. Such a method for producing zinc oxide particles is also one aspect of the present invention.
- the hexagonal plate-like zinc oxide particles of the present invention as described above can be directly obtained by such a method of producing zinc oxide particles without going through a thermal decomposition step such as firing.
- zinc oxide particles having high zinc oxide purity can also be obtained.
- firing may be performed for the purpose of increasing crystallinity.
- a particle diameter is 0.005 micrometer or more and 0.05 micrometer or less.
- the particle diameter of the fine zinc oxide corresponds to the diameter of a sphere having the same surface area as that obtained by the BET method. That is, the particle diameter is a value obtained by the following formula from specific surface area: Sg determined by a fully automatic BET specific surface area measuring device Macsorb (manufactured by Mountaintech) and true specific gravity of ⁇ : ⁇ .
- Particle diameter ( ⁇ m) [6 / (Sg ⁇ ⁇ )] (Sg (m 2 / g): specific surface area, ⁇ (g / cm 3 ): true specific gravity of particles) Note that the true specific gravity of the particles: ⁇ was 5.6, which is the value of the true specific gravity of zinc oxide.
- the particulate zinc oxide that can be used as a raw material is not particularly limited, and zinc oxide produced by a known method can be used.
- Examples of commercially available products include FINEX-75, FINEX-50, and FINEX-30 manufactured by Sakai Chemical Industry.
- the fine zinc oxide is aged in an aqueous zinc salt solution. That is, it is obtained by dispersing the above-mentioned fine zinc oxide in an aqueous zinc salt solution, heating in that state, and crystal growth.
- the solvent used in the present invention is water. Water is most preferable from the viewpoint of production management and cost because it is inexpensive and safe to handle.
- the aqueous zinc salt solution to be used is not particularly limited, and examples thereof include aqueous solutions of zinc acetate, zinc nitrate, zinc sulfate, zinc chloride, zinc formate and the like.
- the specific hexagonal plate-like zinc oxide particles of the present invention are suitably obtained particularly when a zinc acetate aqueous solution is used.
- these zinc salt aqueous solutions may be prepared by mixing zinc oxide, an acid, and water to hydrolyze the zinc oxide.
- the particle shape and particle size of zinc oxide used when preparing an aqueous zinc salt solution with zinc oxide, acid and water are not particularly limited, but from the viewpoint of reducing impurities as much as possible, the zinc purity of zinc oxide is 95% or more.
- examples of acids include acetic acid, nitric acid, sulfuric acid, hydrochloric acid, formic acid, citric acid, succinic acid, propionic acid, malonic acid, lactic acid, tartaric acid, gluconic acid, succinic acid, etc.
- the specific hexagonal plate-like zinc oxide particles of the present invention are preferably obtained.
- two types may be used in combination.
- the zinc salt concentration in the aqueous zinc salt solution is preferably more than 0.45 mol / l and not more than 4.00 mol / l.
- the zinc salt concentration in the aqueous zinc acetate solution exceeds 0.45 mol / l, 2 It is preferably 0.000 mol / l or less.
- the fine zinc oxide concentration is preferably 10 to 500 g / l based on the total amount of the slurry.
- the method for preparing the slurry is not particularly limited.
- the above components are added to water and dispersed at 5 to 30 ° C. for 10 to 30 minutes, whereby a uniform slurry having a fine zinc oxide concentration of 10 to 500 g / l. It can be.
- a small amount of components other than fine zinc oxide, zinc salt and water may be added within a range not impairing the effects of the present invention.
- a dispersant or the like can be added.
- the aging is preferably performed at 45 to 110 ° C.
- the aging time can be 0.5 to 24 hours. Since the particle diameter can be adjusted depending on conditions such as aging temperature, aging time, fine zinc oxide concentration, zinc salt concentration, etc., these conditions are appropriately set according to the intended hexagonal plate-like zinc oxide particles. Preferably it is done.
- the hexagonal plate-like zinc oxide particles thus obtained may be subjected to post-treatment such as filtration, washing with water, and drying as necessary.
- the hexagonal plate-like zinc oxide particles produced by the above method may be classified by a sieve as necessary. Examples of the classification method using a sieve include wet classification and dry classification. Further, a treatment such as wet pulverization or dry pulverization may be performed.
- the method for producing hexagonal plate-like zinc oxide particles of the present invention can obtain zinc oxide particles without performing a firing treatment, but the hexagonal plate-like zinc oxide obtained by the above-described method.
- the particles may be fired.
- firing a method using any known apparatus can be exemplified, and the processing conditions and the like are not particularly limited.
- the hexagonal plate-like zinc oxide particles of the present invention may be further subjected to surface treatment as necessary.
- the surface treatment is not particularly limited, and examples thereof include known treatment methods such as inorganic surface treatment for forming an inorganic oxide layer such as a silica layer, an alumina layer, a zirconia layer, and a titania layer, and other various surface treatments. it can. Further, a plurality of types of surface treatments may be sequentially performed.
- surface treatment surface treatment with a surface treatment agent selected from organosilicon compounds, organoaluminum compounds, organotitanium compounds, higher fatty acids, higher fatty acid esters, metal soaps, polyhydric alcohols or alkanolamines, etc.
- a surface treating agent selected from organosilicon compounds, organoaluminum compounds, organotitanium compounds, higher fatty acids, higher fatty acid esters, metal soaps, polyhydric alcohols or alkanolamines, etc.
- Such a surface treating agent can set a processing amount suitably according to the particle diameter of the said hexagonal plate-like zinc oxide particle.
- organosilicon compound examples include organopolysiloxanes such as methylhydrogenpolysiloxane and dimethylpolysiloxane, and silane coupling agents such as triethoxyvinylsilane and diphenyldimethoxysilane.
- Examples of the higher fatty acid include higher fatty acids having 10 to 30 carbon atoms such as lauric acid, stearic acid, and palmitic acid.
- Examples of the higher fatty acid esters include alkyl esters of the higher fatty acids such as octyl palmitate.
- Examples of the metal soap include metal salts of the higher fatty acids such as aluminum stearate and aluminum laurate.
- the metal species constituting the metal soap is not particularly limited, and examples thereof include aluminum, lithium, magnesium, calcium, strontium, barium, zinc, tin and the like.
- Examples of the polyhydric alcohol include trimethylolethane, trimethylolpropane, pentaerythritol and the like.
- Examples of the alkanolamine include diethanolamine, dipropanolamine, triethanolamine, and tripropanolamine.
- the treatment with the surface treatment agent can be obtained by mixing a predetermined amount of a surface treatment agent with the hexagonal plate-like zinc oxide particles. Furthermore, after suspending the hexagonal plate-like zinc oxide particles in an appropriate medium such as water, alcohol, ether, etc., a surface treating agent is added to the suspension, and the mixture is stirred, fractionated, dried, and pulverized. It can also be obtained by evaporating to dryness and pulverizing.
- an appropriate medium such as water, alcohol, ether, etc.
- the hexagonal plate-like zinc oxide particles that have been surface-treated as described above have various coating layers such as zinc silicate on their surfaces, so their physiological and chemical activities are suppressed when blended in cosmetics. Therefore, it can be made particularly excellent as a cosmetic product.
- hexagonal plate-like zinc oxide particles of the present invention is not particularly limited.
- the hexagonal plate-like zinc oxide particles can be suitably used in cosmetic materials and heat-dissipating fillers. Such cosmetics and heat dissipating fillers are also part of the present invention.
- the cosmetic containing the hexagonal plate-like zinc oxide particles of the present invention has an advantage of good usability because it has ultraviolet shielding properties and is plate-like. Furthermore, when it is used as a cosmetic, it has the advantage of having a soft focus effect.
- Examples of the cosmetic of the present invention include foundations, makeup bases, eye shadows, blushers, mascara, lipsticks, sunscreen agents, and the like.
- the cosmetics of the present invention can be in any form of oily cosmetics, aqueous cosmetics, O / W type cosmetics, and W / O type cosmetics.
- the cosmetic of the present invention may be used in combination with any aqueous component or oily component that can be used in the cosmetic field, in addition to the components constituting the mixture.
- the aqueous component and the oil component are not particularly limited, and examples thereof include oils, surfactants, moisturizers, higher alcohols, sequestering agents, natural and synthetic polymers, water-soluble and oil-soluble polymers, UV shielding agents, Various extracts, inorganic and organic pigments, inorganic and organic clay minerals, inorganic and organic pigments treated with metal soaps or silicones, organic dyes and other colorants, preservatives, antioxidants, pigments, thickeners, pH
- You may contain components, such as a regulator, a fragrance
- the compounding amounts of these compounding components are not particularly limited as long as the
- the oil content is not particularly limited.
- the lipophilic nonionic surfactant is not particularly limited.
- sorbitan monooleate sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, sorbitan trioleate.
- sorbitan fatty acid esters such as diglycerol sorbitan penta-2-ethylhexylate, diglycerol sorbitan tetra-2-ethylhexylate, mono-cotton oil fatty acid glycerin, glyceryl monoerucate, glyceryl sesquioleate, glyceryl monostearate, ⁇ , ⁇ '-Glycerol polyglycerin fatty acids such as pyroglutamate glyceryl oleate, glyceryl monostearate malate, propylene glycol monostearate Glycol fatty acid esters, hardened castor oil derivatives, glycerin alkyl ethers and the like.
- sorbitan fatty acid esters such as diglycerol sorbitan penta-2-ethylhexylate, diglycerol sorbitan tetra-2-ethylhexylate, mono-cotton
- the hydrophilic nonionic surfactant is not particularly limited.
- POE sorbitan fatty acid esters such as POE sorbitan monostearate, POE sorbitan monooleate, and POE sorbitan tetraoleate, POE sorbite monolaurate, and POE sorbite mono POE sorbite fatty acid esters such as oleate, POE sorbite pentaoleate, POE sorbite monostearate, POE glycerin fatty acid esters such as POE glycerin monostearate, POE glycerin monoisostearate, POE glycerin triisostearate, POE POE fatty acid esters such as monooleate, POE distearate, POE monodiolate, ethylene glycol distearate, POE lauryl ether, POE POE alkyl ethers such as yl ether, POE stearyl ether
- surfactants examples include anionic surfactants such as fatty acid soaps, higher alkyl sulfates, POE lauryl sulfate triethanolamine, alkyl ether sulfates, alkyltrimethylammonium salts, alkylpyridinium salts, alkyl quaternary salts. Stabilizes cationic surfactants such as ammonium salts, alkyldimethylbenzylammonium salts, POE alkylamines, alkylamine salts, polyamine fatty acid derivatives, and amphoteric surfactants such as imidazoline-based amphoteric surfactants and betaine-based surfactants. And you may mix
- anionic surfactants such as fatty acid soaps, higher alkyl sulfates, POE lauryl sulfate triethanolamine, alkyl ether sulfates, alkyltrimethylammonium salts, al
- the humectant is not particularly limited, and examples thereof include xylitol, sorbitol, maltitol, chondroitin sulfate, hyaluronic acid, mucoitin sulfate, caronic acid, atelocollagen, cholesteryl-12-hydroxystearate, sodium lactate, bile salt, dl- Examples thereof include pyrrolidone carboxylate, short-chain soluble collagen, diglycerin (EO) PO adduct, Isaiyobara extract, Achillea millefolium extract, and Merirot extract.
- EO diglycerin
- the higher alcohol is not particularly limited, and examples thereof include linear alcohols such as lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol, monostearyl glycerin ether (batyl alcohol), 2-decyl.
- linear alcohols such as lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol, monostearyl glycerin ether (batyl alcohol), 2-decyl.
- branched chain alcohols such as tetradecinol, lanolin alcohol, cholesterol, phytosterol, hexyldodecanol, isostearyl alcohol, octyldodecanol, and the like.
- the sequestering agent is not particularly limited.
- examples thereof include sodium, gluconic acid, phosphoric acid, citric acid, ascorbic acid, succinic acid, edetic acid and the like.
- the natural water-soluble polymer is not particularly limited.
- the semi-synthetic water-soluble polymer is not particularly limited.
- starch-based polymers such as carboxymethyl starch and methylhydroxypropyl starch, methylcellulose, nitrocellulose, ethylcellulose, methylhydroxypropylcellulose, hydroxyethylcellulose, sodium cellulose sulfate, Examples thereof include cellulose polymers such as hydroxypropylcellulose, sodium carboxymethylcellulose (CMC), crystalline cellulose, and cellulose powder, and alginic acid polymers such as sodium alginate and propylene glycol alginate.
- CMC carboxymethylcellulose
- crystalline cellulose cellulose powder
- alginic acid polymers such as sodium alginate and propylene glycol alginate.
- the synthetic water-soluble polymer is not particularly limited, and examples thereof include vinyl polymers such as polyvinyl alcohol, polyvinyl methyl ether, and polyvinyl pyrrolidone, and polyoxyethylene polymers such as polyethylene glycol 20,000, 40,000, and 60,000. Examples thereof include polymers, polyoxyethylene polyoxypropylene copolymer copolymer polymers, acrylic polymers such as sodium polyacrylate, polyethyl acrylate and polyacrylamide, polyethyleneimine, and cationic polymers.
- the inorganic water-soluble polymer is not particularly limited, and examples thereof include bentonite, silicate A1Mg (beegum), laponite, hectorite, and silicic anhydride.
- the UV screening agent is not particularly limited.
- paraaminobenzoic acid hereinafter abbreviated as PABA
- PABA paraaminobenzoic acid
- PABA monoglycerin ester N, N-dipropoxy PABA ethyl ester, N, N-diethoxy PABA ethyl ester, N, N-dimethyl
- Benzoic acid UV screening agents such as PABA ethyl ester and N, N-dimethyl PABA butyl ester
- Anthranilic acid UV screening agents such as homomenthyl-N-acetylanthranylate
- Amyl salicylate Menthyl salicylate, Homomentil salicylate, Octyl salicylate
- Salicylic acid UV screening agents such as phenyl salicylate, benzyl salicylate, p-isopropanol phenyl salicylate; octylcinnamate, ethyl-4-isoprop
- Other drug components are not particularly limited and include, for example, vitamin A oil, retinol, retinol palmitate, inosit, pyridoxine hydrochloride, benzyl nicotinate, nicotinamide, nicotinic acid DL- ⁇ -tocopherol, magnesium ascorbate phosphate, 2 Vitamins such as -O- ⁇ -D-glucopyranosyl-L-ascorbic acid, vitamin D2 (ergocaciferol), dl- ⁇ -tocopherol, dl- ⁇ -tocopherol acetate, pantothenic acid, biotin; estradiol, ethinylestradiol, etc.
- Hormones such as arginine, aspartic acid, cystine, cysteine, methionine, serine, leucine and tryptophan; anti-inflammatory agents such as allantoin and azulene; whitening agents such as arbutin; astringents such as tannic acid; L Menthol, cooling agents and sulfur camphor such as, lysozyme chloride, can be mentioned pyridoxine chloride, and the like.
- Examples of the various powders include bengara, yellow iron oxide, black iron oxide, titanium mica, iron oxide-coated mica titanium, titanium oxide-coated glass flakes and other bright colored pigments, mica, talc, kaolin, sericite, titanium dioxide,
- examples thereof include inorganic powders such as silica and organic powders such as polyethylene powder, nylon powder, crosslinked polystyrene, cellulose powder, and silicone powder.
- a part or all of the powder component is hydrophobized by a known method with a substance such as silicones, fluorine compounds, metal soaps, oils, acyl glutamates in order to improve sensory characteristics and cosmetic durability. Used. Moreover, you may mix and use the other zinc oxide particle which does not correspond to this invention.
- the hexagonal plate-like zinc oxide particles of the present invention can also be used as a heat dissipating filler.
- a heat dissipating filler either a single use or a combination with other heat dissipating fillers can be used.
- the heat dissipating filler of the present invention is 10 to 90% by volume based on the total amount of the heat dissipating composition such as the resin composition and the grease composition. It is preferable to use in proportions.
- the hexagonal plate-like zinc oxide particles When used as a heat dissipating filler, they can be used as a heat dissipating resin composition mixed with a resin.
- the resin used may be a thermoplastic resin or a thermosetting resin, and an epoxy resin, a phenol resin, a polyphenylene sulfide (PPS) resin, a polyester resin, polyamide, polyimide, polystyrene, polyethylene, Polypropylene, polyvinyl chloride, polyvinylidene chloride, fluororesin, polymethyl methacrylate, ethylene / ethyl acrylate copolymer (EEA) resin, polycarbonate, polyurethane, polyacetal, polyphenylene ether, polyetherimide, acrylonitrile-butadiene-styrene
- the resin include polymer (ABS) resin, liquid crystal resin (LCP), silicone resin, and acrylic resin.
- the heat-dissipating resin composition of the present invention is a resin composition for thermoforming obtained by kneading a thermoplastic resin and the hexagonal plate-like zinc oxide particles in a molten state, or a thermosetting resin and the hexagonal plate.
- the hexagonal plate-like zinc oxide particles of the present invention can also be used as a heat dissipating filler composition in combination with other heat dissipating fillers.
- it when used in combination with other heat dissipating filler, it can be used in combination with a heat dissipating filler having a larger particle diameter, or in combination with a heat dissipating filler having a smaller particle diameter. It is also conceivable to use in combination with both.
- the other heat dissipating fillers are not particularly limited, and include metal oxides such as zinc oxide, magnesium oxide, titanium oxide, and aluminum oxide, aluminum nitride, boron nitride, silicon carbide, silicon nitride, titanium nitride, metal silicon, diamond, and the like. Can be mentioned.
- metal oxides such as zinc oxide, magnesium oxide, titanium oxide, and aluminum oxide, aluminum nitride, boron nitride, silicon carbide, silicon nitride, titanium nitride, metal silicon, diamond, and the like.
- the resin component can be freely selected depending on the application. For example, when adhering and adhering to a heat source and a heat sink, a resin having high adhesion and low hardness such as silicone resin or acrylic resin may be selected.
- the resin when the heat-dissipating resin composition of the present invention is a resin composition for paints, the resin may be curable or non-curable.
- the paint may be a solvent-based one containing an organic solvent or a water-based one in which a resin is dissolved or dispersed in water.
- hexagonal plate-like zinc oxide particles When used as a heat dissipating filler, they can also be used as a heat dissipating grease mixed with a base oil containing mineral oil or synthetic oil.
- a heat-dissipating grease ⁇ -olefin, diester, polyol ester, trimellitic acid ester, polyphenyl ether, alkylphenyl ether, etc. can be used as synthetic oil. It can also be used as a heat dissipating grease mixed with silicone oil.
- the hexagonal plate-like zinc oxide particles of the present invention can be used in combination with other components when used as a heat dissipating filler.
- Other components that can be used in combination include metal oxides such as magnesium oxide, titanium oxide, and aluminum oxide, and oxidation of aluminum nitride, boron nitride, silicon carbide, silicon nitride, titanium nitride, metal silicon, diamond, etc.
- Examples include heat dissipating fillers other than zinc, resins, and surfactants.
- the hexagonal plate-like zinc oxide particles of the present invention can be used in the fields of rubber vulcanization accelerators, paint / ink pigments, electronic parts such as ferrite and varistors, pharmaceuticals, etc. in addition to the cosmetics and heat-dissipating fillers described above. Can be used.
- Example 1 FINEX-50 (manufactured by Sakai Chemical Industry Co., Ltd., particle size: 0.02 ⁇ m) and zinc acetate dihydrate (Zinc acetate manufactured by Hosoi Chemical Industry Co., Ltd.) (266.07 g) were dissolved in water to obtain zinc acetate dihydrate.
- the slurry was repulped into 1200 ml of an aqueous zinc acetate solution prepared to a concentration of 1 mol / l to obtain a slurry. Subsequently, the slurry was heated to 100 ° C. over 60 minutes while stirring, and aged at 100 ° C. for 7 hours while stirring. After aging, it was immediately cooled, filtered, and washed with water.
- the obtained solid was repulped into 3 liters of water to form a slurry, heated to 100 ° C. over 60 minutes with stirring, and heated and washed at 100 ° C. for 30 minutes with stirring. After heat washing, filtration, washing with water, and drying at 110 ° C. for 12 hours, hexagonal plate-like zinc oxide particles having a primary particle diameter of 1.12 ⁇ m were obtained.
- the size and morphology of the obtained particles were observed with a scanning electron microscope (SEM, JSM-5600, manufactured by JEOL Ltd.).
- the obtained electron micrograph is shown in FIG. Further, it was observed with a transmission electron microscope (TEM, JEM-1200EX II, manufactured by JEOL Ltd.).
- Table 1 shows the evaluation results of the physical properties of the obtained particles and the physical properties of the coating film.
- Example 2 FINEX-50 (manufactured by Sakai Chemical Industry Co., Ltd., particle size: 0.02 ⁇ m) and zinc acetate dihydrate (Zinc acetate manufactured by Hosoi Chemical Industry Co., Ltd.) (266.07 g) were dissolved in water to obtain zinc acetate dihydrate.
- the slurry was repulped into 1200 ml of an aqueous zinc acetate solution prepared to a concentration of 1 mol / l to obtain a slurry. Subsequently, the slurry was heated to 100 ° C. over 60 minutes while stirring, and aged at 100 ° C. for 3 hours while stirring. After aging, it was immediately cooled, filtered, and washed with water.
- the obtained solid was repulped into 3 liters of water to form a slurry, heated to 100 ° C. over 60 minutes with stirring, and heated and washed at 100 ° C. for 30 minutes with stirring. After heating and washing, filtration, washing with water, and drying at 110 ° C. for 12 hours, hexagonal plate-like zinc oxide particles having a primary particle diameter of 0.53 ⁇ m were obtained.
- the size and morphology of the obtained particles were observed with a scanning electron microscope (SEM, JSM-5600, manufactured by JEOL Ltd.).
- the obtained electron micrograph is shown in FIG. Further, it was observed with a transmission electron microscope (TEM, JEM-1200EX II, manufactured by JEOL Ltd.).
- the obtained electron micrograph is shown in FIG.
- the X-ray diffraction spectrum of the obtained particles is shown in FIG. Table 1 shows the evaluation results of the physical properties of the obtained particles and the physical properties of the coating film.
- Example 3 FINEX-50 (manufactured by Sakai Chemical Industry Co., Ltd., particle size: 0.02 ⁇ m) and zinc acetate dihydrate (Zinc acetate manufactured by Hosoi Chemical Industry Co., Ltd.) (266.07 g) were dissolved in water to obtain zinc acetate dihydrate.
- the slurry was repulped into 1200 ml of an aqueous zinc acetate solution prepared to a concentration of 1 mol / l to obtain a slurry. Subsequently, the slurry was heated to 100 ° C. over 60 minutes with stirring, and aged at 100 ° C. for 1 hour with stirring. After aging, it was immediately cooled, filtered, and washed with water.
- the obtained solid was repulped into 3 liters of water to form a slurry, heated to 100 ° C. over 60 minutes with stirring, and heated and washed at 100 ° C. for 30 minutes with stirring. After heat washing, filtration, washing with water, and drying at 110 ° C. for 12 hours, hexagonal plate-like zinc oxide particles having a primary particle size of 0.30 ⁇ m were obtained. The size and morphology of the obtained particles were observed with a transmission electron microscope (TEM, JEM-1200EX II, manufactured by JEOL Ltd.). The obtained electron micrograph is shown in FIG. Further, an electron micrograph at a high magnification is shown in FIG. Table 1 shows the evaluation results of the physical properties of the obtained particles and the physical properties of the coating film.
- TEM transmission electron microscope
- Example 4 FINEX-50 (manufactured by Sakai Chemical Industry Co., Ltd., particle size: 0.02 ⁇ m) and zinc acetate dihydrate (zinc acetate manufactured by Hosoi Chemical Industry Co., Ltd.), 133.02 g, were dissolved in water to obtain zinc acetate dihydrate.
- the slurry was repulped into 1200 ml of an aqueous zinc acetate solution prepared to have a concentration of 0.5 mol / l to form a slurry. Subsequently, the slurry was heated to 100 ° C. over 60 minutes while stirring, and aged at 100 ° C. for 3 hours while stirring. After aging, it was immediately cooled, filtered, and washed with water.
- the obtained solid was repulped into 3 liters of water to form a slurry, heated to 100 ° C. over 60 minutes with stirring, and heated and washed at 100 ° C. for 30 minutes with stirring. After heat washing, filtration, washing with water, and drying at 110 ° C. for 12 hours, hexagonal plate-like zinc oxide particles having a primary particle diameter of 0.11 ⁇ m were obtained. The size and morphology of the obtained particles were observed with a transmission electron microscope (TEM, JEM-1200EX II, manufactured by JEOL Ltd.). The obtained electron micrograph is shown in FIG. Further, an electron micrograph at a high magnification is shown in FIG. Table 1 shows the evaluation results of the physical properties of the obtained particles and the physical properties of the coating film. The crystallite diameter of the plate-like surface (002) plane is 0.07 ⁇ m.
- Example 5 FINEX-50 (manufactured by Sakai Chemical Industry Co., Ltd., particle size 0.02 ⁇ m) was dissolved in water and 133.02 g of zinc acetate dihydrate (zinc acetate manufactured by Hosoi Chemical Industry Co., Ltd.) was dissolved in water to obtain zinc acetate dihydrate.
- the slurry was repulped into 1200 ml of an aqueous zinc acetate solution prepared to have a concentration of 0.5 mol / l to form a slurry. Subsequently, the slurry was heated to 70 ° C. over 42 minutes while stirring, and aged at 70 ° C. for 3 hours while stirring.
- the obtained solid was repulped into 3 liters of water to form a slurry, heated to 40 ° C. over 24 minutes with stirring, and heated and washed at 40 ° C. for 30 minutes with stirring. After heating and washing, it was filtered, washed with water, and dried at 110 ° C. for 12 hours to obtain zinc oxide particles mixed with amorphous impurities.
- the size and morphology of the obtained particles were observed with a transmission electron microscope (TEM, JEM-1200EX II, manufactured by JEOL Ltd.).
- the obtained electron micrograph is shown in FIG.
- the X-ray diffraction spectrum of the obtained particles is shown in FIG. Table 1 shows the evaluation results of the physical properties of the obtained particles and the physical properties of the coating film.
- the obtained solid was repulped into 3 liters of water to form a slurry, heated to 70 ° C. over 42 minutes with stirring, and heated and washed at 70 ° C. for 30 minutes with stirring. After heating and washing, the mixture was filtered, washed with water, and dried at 110 ° C. for 12 hours to obtain zinc oxide particles having a primary particle size of 0.04 ⁇ m. The size and morphology of the obtained particles were observed with a transmission electron microscope (TEM, JEM-1200EX II, manufactured by JEOL Ltd.). The obtained electron micrograph is shown in FIG. Table 1 shows the evaluation results of the physical properties of the obtained particles and the physical properties of the coating film.
- TEM transmission electron microscope
- composition of the obtained particles The spectrum of the X-ray diffraction shown in FIGS. 5, 12, and 16 and the composition of the particles obtained in Table 1 are the results of analysis by an X-ray diffractometer Ultima III (manufactured by Rigaku Corporation) having a copper tube. Is. From these results, it is clear that zinc oxide was obtained for the examples. It is clear that the zinc oxide particles of Comparative Example 3 are in a state where impurities are mixed.
- the aspect ratio of the hexagonal plate-like zinc oxide particles of the examples was measured by the measurement method described above.
- the aspect ratio of the zinc oxide particles having an irregular shape in the comparative example the zinc oxide particles having an irregular shape in a field of view of 2000 to 50000 times that of a transmission electron microscope (TEM, JEM-1200EX II, manufactured by JEOL Ltd.)
- TEM, JEM-1200EX II manufactured by JEOL Ltd.
- the major axis of the particle and the minor axis passing through the center of the major axis are measured, and the ratio of the major axis to the minor axis length; major axis / minor axis is determined.
- FIG. 26 shows a method for measuring the aspect ratio of amorphous zinc oxide particles.
- the aspect ratio of the zinc oxide particles having a hexagonal columnar particle shape in the comparative example is obtained by the following method.
- the side surface of the hexagonal columnar zinc oxide particles faces the front in a field of view of 2000 to 50000 times that of a transmission electron microscope (TEM, JEM-1200EX II, manufactured by JEOL Ltd.).
- the major axis and the minor axis are measured and the ratio of the major axis to the minor axis length; the major axis / minor axis is determined.
- the major axis / minor axis was measured for 250 hexagonal columnar zinc oxide particles in the TEM photograph, and the average value of the cumulative distribution was obtained as the aspect ratio.
- FIG. 25 shows a method for measuring the aspect ratio of hexagonal columnar zinc oxide particles.
- crystallite diameter The crystallite diameter ( ⁇ m) in the present specification indicates the result of analysis by an X-ray diffractometer Ultima III (manufactured by Rigaku Corporation) having a copper tube.
- a crystallite usually means a small single crystal at a microscopic level constituting a crystal substance.
- the crystallite diameter ( ⁇ m) is a value obtained from the half width of the diffraction peak of the (002) plane of the zinc oxide plate-like surface in the X-ray diffraction pattern of hexagonal wurtzite zinc oxide particles. It is.
- Crystallite diameter / primary particle diameter The value represented by the crystallite diameter / primary particle diameter in this specification is a value serving as an index of the independence of the primary particles constituting the powder.
- the primary particle diameter is a fixed diameter in a field of view of 2000 to 50000 times that of a transmission electron microscope (TEM, JEM-1200EX II, manufactured by JEOL Ltd.) (two parallel in a fixed direction across the particle). Measure the diameter of 250 primary particles in a TEM photograph ( ⁇ m), which is defined as the particle spacing (measured in a certain direction for particles of any shape on the image). The geometric particle diameter obtained from the average value of the cumulative distribution.
- the crystallite diameter is a value obtained from the half-value width of the diffraction peak of the (002) plane of the zinc oxide plate-like surface in the X-ray diffraction pattern as described above. Therefore, the closer the value of crystallite diameter / primary particle diameter is to 1, the closer the geometric particle diameter and the size of the single crystal are, that is, the primary particles are independent as single crystal particles rather than aggregate particles. It means that it exists.
- the hexagonal plate-like zinc oxide particles obtained in Examples 4 and 5 each have a crystallite diameter / primary particle diameter value of 0.64, which is not an aggregated particle but a primary particle close to a single crystal.
- the powder feel in this specification is an index indicating the slipperiness and roughness of the powder in the feeling that is felt when a small amount of powder is placed on the skin and the powder is stretched with a finger.
- 5 points are those that are very slippery and do not feel rough
- 4 points are those that are slippery and hardly feel rough
- 3 points that are both average in terms of both slipperiness and roughness
- Two points were evaluated for those that felt rough, and one point for those that felt very rough and rough. The results are shown in Table 1. The higher the score, the better the powder feel. The better the powder feel, the more suitable for use in foundations and other makeup cosmetics.
- a coating film was prepared by Yasuda Seiki Seisakusho. The prepared coating film was dried at 20 ° C. for 12 hours, and then used for measurement of total light transmittance 1, total light transmittance 2, total light transmittance 3, parallel light transmittance 1, parallel light transmittance 2, and haze. .
- Total light transmittance 1 Total light transmittance 2, Total light transmittance 3, Parallel light transmittance 1, Parallel light transmittance 2
- total light transmittance 1 (%), total light transmittance 2 (%), total light transmittance 3 (%), parallel light transmittance 1 (%), and parallel light transmittance 2 (%) are:
- the measured value of the prepared coating film was measured with a spectrophotometer V-570 (manufactured by JASCO Corporation).
- the value of total light transmittance 1 (%) is the value of total light transmittance at a wavelength of 310 nm
- the value of total light transmittance 2 (%) is the value of total light transmittance at a wavelength of 350 nm
- the total light transmittance 3 ( %) Is the value of total light transmittance at a wavelength of 375 nm
- the value of parallel light transmittance 1 (%) is the value of parallel light transmittance at a wavelength of 500 nm
- the value of parallel light transmittance 2 (%) is at a wavelength of 700 nm.
- the value of parallel light transmittance It means that the smaller the value of total light transmittance 1 (%), the higher the ultraviolet shielding effect against UVB wavelength ultraviolet light.
- total light transmittance 2 (%) and total light transmittance 3 (%) are The smaller the value, the higher the ultraviolet shielding effect against ultraviolet rays having a wavelength of UVA.
- the value of the total light transmittance 3 (%) is small, it means that the shielding region with respect to ultraviolet rays having a wavelength of UVA is spread over a wider area.
- visible light transparency is so high that the value of parallel light transmittance 1 (%) and parallel light transmittance 2 (%) is large.
- Total light transmittance 4, haze The total light transmittance 4 (%) and haze (%) in Table 1 are values obtained by measuring the prepared coating film with a haze meter HM-150 (manufactured by Murakami Color Research Laboratory Co., Ltd.). When the values of the total light transmittance 4 (%) are comparable, the higher the haze (%) value, the higher the effect of blurring the background (so-called soft focus effect).
- the hexagonal plate-like zinc oxide particles of the present invention exhibit a good powder feel with good slip and no rough feeling when the primary particle diameter is 0.5 ⁇ m or more.
- the primary particle diameter is 0.3 ⁇ m or more, it is clear that the haze is high and an excellent soft focus effect is obtained.
- the particles of Examples 1 and 2 are zinc oxide particles having both a good powder feel and a soft focus effect.
- the primary particle diameter is 0.3 ⁇ m or less, it is clear that the total light transmittance 1 and the total light transmittance 2 are low and have excellent ultraviolet shielding properties.
- the particles of Example 3 are zinc oxide particles having both an excellent soft focus effect and an ultraviolet shielding property, and at the same time than the amorphous zinc oxide particles of Comparative Example 4 having the same primary particle size. It is clear that it has an excellent powder feel.
- the primary particle diameter is about 0.1 ⁇ m, it is clear that the parallel light transmittance 1 and the parallel light transmittance 2 are high and have excellent visible light transparency.
- the particles of Examples 4 and 5 are zinc oxide particles having both excellent ultraviolet shielding properties and visible light transparency, and at the same time, the amorphous zinc oxide of Comparative Example 1 having the same primary particle size. It is clear that it has a better powder feel than the particles.
- the particles of Examples 4 and 5 have a low total light transmittance of 3 and have an excellent ultraviolet shielding property even in the UVA wavelength region of 375 nm.
- the zinc oxide particles of Comparative Example 7 having a primary particle diameter of 0.02 ⁇ m and the zinc oxide particles of Comparative Example 8 having a primary particle diameter of 0.04 ⁇ m can obtain sufficient ultraviolet shielding properties in the 375 nm UVA wavelength region. There wasn't.
- the hexagonal plate-like zinc oxide particles of the present invention could not be obtained under the conditions of Comparative Examples 2, 3, 5, and 6 that were outside the production range of the present invention.
- the hexagonal plate-like zinc oxide particles of the present invention can be used as a component of cosmetics, heat dissipating fillers, heat dissipating resin compositions, heat dissipating greases and heat dissipating coating compositions.
Abstract
Description
(1) 六角形状の面を有すること
(2) Dmin/Dmax≧0.3
Dmax:六角板状酸化亜鉛粒子の六角形状面の3本の対角線のうち、最大となる対角線の長さを意味する
Dmin:六角板状酸化亜鉛粒子の六角形状面の3本の対角線のうち、最小となる対角線の長さを意味する
本発明は、微粒子酸化亜鉛を亜鉛塩水溶液中で熟成する工程を含むことを特徴とする上記六角板状酸化亜鉛粒子の製造方法でもある。
本発明は、上記六角板状酸化亜鉛粒子からなることを特徴とする放熱性フィラーでもある。
本発明は、上記六角板状酸化亜鉛粒子を含有することを特徴とする放熱性樹脂組成物でもある。
本発明は、上記六角板状酸化亜鉛粒子を含有することを特徴とする放熱性グリースでもある。
本発明は、上記六角板状酸化亜鉛粒子を含有することを特徴とする放熱性塗料組成物でもある。
本発明の六角板状酸化亜鉛粒子は、一次粒子が正六角形に近い形状を有し、凝集も少ないものであることから、化粧料用粉体として好適に使用できる。その中でも特に粒子径が0.3μm以上の六角板状酸化亜鉛粒子を使用した場合、ヘーズが高く下地をぼかす作用(いわゆるソフトフォーカス効果)が大きい。上記範囲の粒子径を有する本発明の六角板状酸化亜鉛粒子は、粒子径の近い一般的な酸化亜鉛と比べると、全光線透過率がほぼ同等でありながら、ヘーズが高い。これは、光の散乱効率が高いことを意味し、皮膚に塗布した際にソフトフォーカス効果が高いものである。また、0.5μm以上の六角板状酸化亜鉛粒子を使用した場合、非常に滑りがよく、使用感に優れたものであり、ファンデーション用途における粒子として好適に使用できる。
(1) 六角形状の面を有すること
(2) Dmin/Dmax≧0.3
Dmax:六角板状酸化亜鉛粒子の六角形状面の3本の対角線のうち、最大となる対角線の長さを意味する
Dmin:六角板状酸化亜鉛粒子の六角形状面の3本の対角線のうち、最小となる対角線の長さを意味する
上記一次粒子径の上限は特に限定されるものではないが、例えば、100μm以下であることが好ましく、50μm以下であることがより好ましく、25μm以下であることが更に好ましい。
(1) 六角形状の面を有すること
(2) Dmin/Dmax≧0.3
Dmax:六角板状酸化亜鉛粒子の六角形状面の3本の対角線のうち、最大となる対角線の長さを意味する
Dmin:六角板状酸化亜鉛粒子の六角形状面の3本の対角線のうち、最小となる対角線の長さを意味する
上記各パラメータを満たす酸化亜鉛粒子とすることで、特に良好な性能を有するものとなる。
粒子径(μm)=[6/(Sg×ρ)]
(Sg(m2/g):比表面積、ρ(g/cm3):粒子の真比重)
なお、粒子の真比重:ρは、酸化亜鉛の真比重の値である5.6を上記計算に用いた。
上記方法によって製造された六角板状酸化亜鉛粒子は、必要に応じて篩による分級を行うものであっても良い。篩による分級方法としては、湿式分級、乾式分級を挙げることができる。また、湿式粉砕、乾式粉砕等の処理を行ってもよい。
上記高級脂肪酸エステルとしては、例えば、パルミチン酸オクチルのような上記高級脂肪酸のアルキルエステル等を挙げることができる。
上記金属石ケンとしては、例えば、ステアリン酸アルミニウム、ラウリン酸アルミニウム等の上記高級脂肪酸の金属塩等を挙げることができる。金属石ケンを構成する金属種は特に限定されず、例えば、アルミニウム、リチウム、マグネシウム、カルシウム、ストロンチウム、バリウム、亜鉛、スズ等を挙げることができる。
上記アルカノールアミンとしては、例えば、ジエタノールアミン、ジプロパノールアミン、トリエタノールアミン、トリプロパノールアミン等を挙げることができる。
本発明の六角板状酸化亜鉛粒子を放熱性フィラーとして使用する場合、単独での使用、他の放熱性フィラーとの併用のいずれの方法とすることもできる。単独での使用、他の放熱性フィラーとの併用使用に関わらず、本発明の放熱性フィラーを樹脂組成物、グリース組成物等の放熱性組成物の全量に対して、10~90体積%の割合で使用することが好ましい。
FINEX-50(堺化学工業社製 粒子径0.02μm)80gを、酢酸亜鉛二水和物(細井化学工業社製 酢酸亜鉛)266.07gを水に溶解して酢酸亜鉛二水和物としての濃度が1mol/lとなるよう調製した酢酸亜鉛水溶液1200mlにリパルプしスラリーとした。続いて、そのスラリーを攪拌しながら60分間で100℃に昇温し、攪拌しながら100℃で7時間熟成した。熟成後、直ちに急冷した後、ろ過、水洗した。続いて、得られた固形物を水3リットルにリパルプしてスラリーとし、攪拌しながら60分間で100℃に昇温し、攪拌しながら100℃で30分間加熱洗浄した。加熱洗浄後、ろ過、水洗し、110℃で12時間乾燥することにより、一次粒子径が1.12μmの六角板状酸化亜鉛粒子を得た。得られた粒子のサイズ・形態を走査型電子顕微鏡(SEM、JSM-5600、日本電子社製)で観察した。得られた電子顕微鏡写真を図1に示した。また、透過型電子顕微鏡(TEM、JEM-1200EX II、日本電子社製)で観察した。得られた電子顕微鏡写真を図2に示した。また、得られた粒子の物性、及び塗膜の物性の評価結果を表1に示した。
FINEX-50(堺化学工業社製 粒子径0.02μm)80gを、酢酸亜鉛二水和物(細井化学工業社製 酢酸亜鉛)266.07gを水に溶解して酢酸亜鉛二水和物としての濃度が1mol/lとなるよう調製した酢酸亜鉛水溶液1200mlにリパルプしスラリーとした。続いて、そのスラリーを攪拌しながら60分間で100℃に昇温し、攪拌しながら100℃で3時間熟成した。熟成後、直ちに急冷した後、ろ過、水洗した。続いて、得られた固形物を水3リットルにリパルプしてスラリーとし、攪拌しながら60分間で100℃に昇温し、攪拌しながら100℃で30分間加熱洗浄した。加熱洗浄後、ろ過、水洗し、110℃で12時間乾燥することにより、一次粒子径が0.53μmの六角板状酸化亜鉛粒子を得た。得られた粒子のサイズ・形態を走査型電子顕微鏡(SEM、JSM-5600、日本電子社製)で観察した。得られた電子顕微鏡写真を図3に示した。また、透過型電子顕微鏡(TEM、JEM-1200EX II、日本電子社製)で観察した。得られた電子顕微鏡写真を図4に示した。また、得られた粒子のX線回折のスペクトルを図5に示した。また、得られた粒子の物性、及び塗膜の物性の評価結果を表1に示した。
FINEX-50(堺化学工業社製 粒子径0.02μm)80gを、酢酸亜鉛二水和物(細井化学工業社製 酢酸亜鉛)266.07gを水に溶解して酢酸亜鉛二水和物としての濃度が1mol/lとなるよう調製した酢酸亜鉛水溶液1200mlにリパルプしスラリーとした。続いて、そのスラリーを攪拌しながら60分間で100℃に昇温し、攪拌しながら100℃で1時間熟成した。熟成後、直ちに急冷した後、ろ過、水洗した。続いて、得られた固形物を水3リットルにリパルプしてスラリーとし、攪拌しながら60分間で100℃に昇温し、攪拌しながら100℃で30分間加熱洗浄した。加熱洗浄後、ろ過、水洗し、110℃で12時間乾燥することにより、一次粒子径が0.30μmの六角板状酸化亜鉛粒子を得た。得られた粒子のサイズ・形態を透過型電子顕微鏡(TEM、JEM-1200EX II、日本電子社製)で観察した。得られた電子顕微鏡写真を図6に示した。更に高倍率での電子顕微鏡写真を図7に示した。また、得られた粒子の物性、及び塗膜の物性の評価結果を表1に示した。
FINEX-50(堺化学工業社製 粒子径0.02μm)80gを、酢酸亜鉛二水和物(細井化学工業社製 酢酸亜鉛)133.02gを水に溶解して酢酸亜鉛二水和物としての濃度が0.5mol/lとなるよう調製した酢酸亜鉛水溶液1200mlにリパルプしスラリーとした。続いて、そのスラリーを攪拌しながら60分間で100℃に昇温し、攪拌しながら100℃で3時間熟成した。熟成後、直ちに急冷した後、ろ過、水洗した。続いて、得られた固形物を水3リットルにリパルプしてスラリーとし、攪拌しながら60分間で100℃に昇温し、攪拌しながら100℃で30分間加熱洗浄した。加熱洗浄後、ろ過、水洗し、110℃で12時間乾燥することにより、一次粒子径が0.11μmの六角板状酸化亜鉛粒子を得た。得られた粒子のサイズ・形態を透過型電子顕微鏡(TEM、JEM-1200EX II、日本電子社製)で観察した。得られた電子顕微鏡写真を図8に示した。更に高倍率での電子顕微鏡写真を図9に示した。また、得られた粒子の物性、及び塗膜の物性の評価結果を表1に示した。また、板状面;(002)面の結晶子径は、0.07μmである。
FINEX-50(堺化学工業社製 粒子径0.02μm)80gを、酢酸亜鉛二水和物(細井化学工業社製 酢酸亜鉛)133.02gを水に溶解して酢酸亜鉛二水和物としての濃度が0.5mol/lとなるよう調製した酢酸亜鉛水溶液1200mlにリパルプしスラリーとした。続いて、そのスラリーを攪拌しながら42分間で70℃に昇温し、攪拌しながら70℃で3時間熟成した。熟成後、直ちに急冷した後、ろ過、水洗した。続いて、得られた固形物を水3リットルにリパルプしてスラリーとし、攪拌しながら42分間で70℃に昇温し、攪拌しながら70℃で30分間加熱洗浄した。加熱洗浄後、ろ過、水洗し、110℃で12時間乾燥することにより、一次粒子径が0.11μmの六角板状酸化亜鉛粒子を得た。得られた粒子のサイズ・形態を透過型電子顕微鏡(TEM、JEM-1200EX II、日本電子社製)で観察した。得られた電子顕微鏡写真を図10に示した。更に高倍率での電子顕微鏡写真を図11に示した。また、得られた粒子のX線回折のスペクトルを図12に示した。また、得られた粒子の物性、及び塗膜の物性の評価結果を表1に示した。また、板状面;(002)面の結晶子径は、0.07μmである。
微細酸化亜鉛(堺化学工業社製 粒子径0.11μm)について実施例と同様の評価を行った。電子顕微鏡写真を図13に示した。また、得られた粒子の物性、及び塗膜の物性の評価結果を表1に示した。
FINEX-50(堺化学工業社製 粒子径0.02μm)80gを、水1200mlにリパルプしスラリーとした。続いて、そのスラリーを攪拌しながら60分間で100℃に昇温し、攪拌しながら100℃で3時間熟成した。熟成後、直ちに急冷した後、ろ過、水洗し、110℃で12時間乾燥することにより、一次粒子径が0.02μmの不定形の酸化亜鉛粒子を得た。得られた粒子のサイズ・形態を透過型電子顕微鏡(TEM、JEM-1200EX II、日本電子社製)で観察した。得られた電子顕微鏡写真を図14に示した。また、得られた粒子の物性、及び塗膜の物性の評価結果を表1に示した。
FINEX-50(堺化学工業社製 粒子径0.02μm)80gを、酢酸亜鉛二水和物(細井化学工業社製 酢酸亜鉛)133.02gを水に溶解して酢酸亜鉛二水和物としての濃度が0.5mol/lとなるよう調製した酢酸亜鉛水溶液1200mlにリパルプしスラリーとした。続いて、そのスラリーを攪拌しながら24分間で40℃に昇温し、攪拌しながら40℃で3時間熟成した。熟成後、直ちにろ過、水洗した。続いて、得られた固形物を水3リットルにリパルプしてスラリーとし、攪拌しながら24分間で40℃に昇温し、攪拌しながら40℃で30分間加熱洗浄した。加熱洗浄後、ろ過、水洗し、110℃で12時間乾燥することにより、不定形の不純物の混ざった酸化亜鉛粒子を得た。得られた粒子のサイズ・形態を透過型電子顕微鏡(TEM、JEM-1200EX II、日本電子社製)で観察した。得られた電子顕微鏡写真を図15に示した。また、得られた粒子のX線回折のスペクトルを図16に示した。また、得られた粒子の物性、及び塗膜の物性の評価結果を表1に示した。
FINEX-50(堺化学工業社製 粒子径0.02μm)10gを、アルミナ製るつぼ(縦・横・高さ=100mm・100mm・35mm)に入れ、電気マッフル炉(東洋製作所社製)で675℃で2時間静置焼成することにより、一次粒子径が0.30μmの不定形の酸化亜鉛粒子を得た。得られた粒子のサイズ・形態を透過型電子顕微鏡(TEM、JEM-1200EX II、日本電子社製)で観察した。得られた電子顕微鏡写真を図17に示した。また、得られた粒子の物性、及び塗膜の物性の評価結果を表1に示した。
FINEX-50(堺化学工業社製 一次粒子径0.02μm)80gを、酢酸亜鉛二水和物(細井化学工業社製 酢酸亜鉛)66.51gを水に溶解して酢酸亜鉛二水和物としての濃度が0.25mol/lとなるよう調製した酢酸亜鉛水溶液1200mlにリパルプしスラリーとした。続いて、そのスラリーを攪拌しながら42分間で70℃に昇温し、攪拌しながら70℃で3時間熟成した。熟成後、直ちにろ過、水洗した。続いて、得られた固形物を水3リットルにリパルプしてスラリーとし、攪拌しながら42分間で70℃に昇温し、攪拌しながら70℃で30分間加熱洗浄した。加熱洗浄後、ろ過、水洗し、110℃で12時間乾燥することにより、一次粒子径が0.04μmの酸化亜鉛粒子を得た。得られた粒子のサイズ・形態を透過型電子顕微鏡(TEM、JEM-1200EX II、日本電子社製)で観察した。得られた電子顕微鏡写真を図18に示した。また、得られた粒子の物性、及び塗膜の物性の評価結果を表1に示した。
SF-15(堺化学工業社製 微粒子酸化亜鉛 粒子径0.08μm)80gを、酢酸亜鉛二水和物(細井化学工業社製 酢酸亜鉛)106.42gを水に溶解して酢酸亜鉛二水和物としての濃度が0.4mol/lとなるよう調製した酢酸亜鉛水溶液1200mlにリパルプしスラリーとした。続いて、そのスラリーを攪拌しながら42分間で70℃に昇温し、攪拌しながら70℃で5時間熟成した。熟成後、直ちにろ過、水洗した。続いて、得られた固形物を水3リットルにリパルプしてスラリーとし、攪拌しながら42分間で70℃に昇温し、攪拌しながら70℃で30分間加熱洗浄した。加熱洗浄後、ろ過、水洗し、110℃で12時間乾燥することにより、一次粒子径が0.12μmの六角柱状酸化亜鉛粒子を得た。得られた粒子のサイズ・形態を透過型電子顕微鏡(TEM、JEM-1200EX II、日本電子社製)で観察した。得られた電子顕微鏡写真を図19に示した。また、得られた粒子の物性、及び塗膜の物性の評価結果を表1に示した。
FINEX-50(堺化学工業社製 粒子径0.02μm)について実施例と同様の評価を行った。電子顕微鏡写真を図20に示した。また、得られた粒子の物性、及び塗膜の物性の評価結果を表1に示した。
FINEX-30(堺化学工業社製 粒子径0.04μm)について実施例と同様の評価を行った。電子顕微鏡写真を図21に示した。また、得られた粒子の物性、及び塗膜の物性の評価結果を表1に示した。
図5、図12、図16に示すX線回折のスペクトル、及び表1における得られた粒子の組成は、銅管球をもつX線回折装置UltimaIII(リガク社製)により分析した結果を示したものである。これらの結果から、実施例のものについては酸化亜鉛が得られていることが明らかである。比較例3の酸化亜鉛粒子は不純物が混ざった状態であることが明らかである。
実施例の六角板状酸化亜鉛粒子のアスペクト比は、上述した測定方法によって測定を行った。
比較例における粒子形状が不定形の酸化亜鉛粒子のアスペクト比については、透過型電子顕微鏡(TEM、JEM-1200EX II、日本電子社製)写真の2000~50000倍の視野において、不定形の酸化亜鉛粒子の長径と、長径の中心を通る短径を計測し、長径と短径の長さの比;長径/短径を求める。そのようにしてTEM写真内の不定形の酸化亜鉛粒子250個について長径/短径を計測し、その累積分布の平均値をアスペクト比として求めたものである。不定形の酸化亜鉛粒子のアスペクト比の計測方法について図26に示した。
また、比較例における粒子形状が六角柱状の酸化亜鉛粒子のアスペクト比は、以下の方法により求められる。六角柱状酸化亜鉛粒子のアスペクト比については、透過型電子顕微鏡(TEM、JEM-1200EX II、日本電子社製)写真の2000~50000倍の視野において、六角柱状酸化亜鉛粒子の側面が正面を向いている粒子(長方形や正方形の形状として観察される粒子)について、長径と短径を計測し、長径と短径の長さの比;長径/短径を求める。そのようにしてTEM写真内の六角柱状酸化亜鉛粒子250個について長径/短径を計測し、その累積分布の平均値をアスペクト比として求めたものである。なお、六角形状面が正面を向いている六角板状酸化亜鉛粒子については、その厚みを確認することが困難であるため、計測の対象から除外した。六角柱状酸化亜鉛粒子のアスペクト比の計測方法について図25に示した。
本明細書における結晶子径(μm)は、銅管球をもつX線回折装置UltimaIII(リガク社製)により分析した結果を示したものである。結晶子とは、通常、結晶物質を構成する顕微鏡的レベルでの小さな単結晶を意味する。また、本明細書において、結晶子径(μm)は、六方晶ウルツ型酸化亜鉛粒子のX線回折パターンにおける酸化亜鉛の板状面;(002)面の回折ピークの半価幅から求めた値である。
本明細書における結晶子径/一次粒子径で表される値は、粉末を構成する一次粒子の独立性の高さの指標となる値である。一次粒子径は既に述べたように透過型電子顕微鏡(TEM、JEM-1200EX II、日本電子社製)写真の2000~50000倍の視野での定方向径(粒子を挟む一定方向の二本の平行線の間隔;画像上のどのような形状の粒子についても、一定方向で測定した)で定義される粒子径(μm)であって、TEM写真内の一次粒子250個の定方向径を計測し、その累積分布の平均値を求めた幾何学的粒子径である。一方、結晶子径は既に述べたようにX線回折パターンにおける酸化亜鉛の板状面;(002)面の回折ピークの半価幅から求めた値を示したものである。従って、この結晶子径/一次粒子径の値が1に近いほど、幾何学的粒子径と単結晶の大きさが近づいている、すなわち、一次粒子が凝集粒子ではなく単結晶粒子として独立して存在していることを意味する。実施例4、5によって得られた六角板状酸化亜鉛粒子の結晶子径/一次粒子径の値は何れも0.64であり、凝集粒子ではなく単結晶に近い一次粒子である。
本明細書における粉体感触は、少量の粉体を肌の上に置き、指で粉体を引き伸ばしたときに感じる感触において、粉体の滑り性とざらつき感を示す指標である。本明細書においては、大変滑りが良くざらつきを感じないものを5点、滑りが良くざらつきを殆ど感じないものを4点、滑り性とざらつき感がともに平均的であるものを3点、滑りが悪くざらつきを感じるものを2点、大変滑りが悪くざらつきを感じるものを1点として5段階の点数評価を行い、その結果を表1に示した。点数が高いほど粉体感触が良好であることを意味し、粉体感触が良好であるほど、ファンデーションその他のメイクアップ化粧料用途に好適に使用することができる。
上記実施例、比較例で得られる酸化亜鉛粒子2g、ワニス10g(アクリディック A-801-P DIC社製)、酢酸ブチル5g(試薬特級 和光純薬工業社製)、キシレン5g(純正特級 純正化学社製)、ガラスビーズ38g(1.5mm ポッターズ・バロティーニ社製)を容積75mlのマヨネーズ瓶に入れ、良くかき混ぜた後、ペイントコンディショナー5410型(RED DEVIL社製)に固定し、90分間振動を与えて分散処理することにより塗料を作成した。次に、作成した塗料をスライドガラス(縦・横・厚み=76mm・26mm・0.8~1.0mm 松浪硝子工業社製)の上に少量滴下し、バーコーター(No.579 ROD No.6 安田精機製作所社製)で塗膜を作成した。作成した塗膜を20℃で12時間乾燥した後、全光線透過率1、全光線透過率2、全光線透過率3、平行光線透過率1、平行光線透過率2、ヘーズの測定に用いた。
本明細書において、全光線透過率1(%)、全光線透過率2(%)、全光線透過率3(%)及び平行光線透過率1(%)、平行光線透過率2(%)は、作成した塗膜を分光光度計V-570(日本分光社製)で測定した値である。なお、全光線透過率1(%)の値は波長310nmにおける全光線透過率の値、全光線透過率2(%)の値は波長350nmにおける全光線透過率の値、全光線透過率3(%)の値は波長375nmにおける全光線透過率の値、平行光線透過率1(%)の値は波長500nmにおける平行光線透過率の値、平行光線透過率2(%)の値は波長700nmにおける平行光線透過率の値である。全光線透過率1(%)の値が小さい程、UVBの波長の紫外線に対する紫外線遮蔽効果が高いことを意味し、全光線透過率2(%)と全光線透過率3(%)の値が小さい程、UVAの波長の紫外線に対する紫外線遮蔽効果が高いことを意味する。特に、全光線透過率3(%)の値が小さい場合、UVAの波長の紫外線に対する遮蔽領域がより広域に渡っていることを意味する。また、平行光線透過率1(%)、平行光線透過率2(%)の値が大きい程、可視光透明性が高いことを意味する。
表1の全光線透過率4(%)、ヘーズ(%)は、作成した塗膜をヘーズメーター HM-150(村上色彩技術研究所社製)で測定した値である。全光線透過率4(%)の値が同程度のものを比較した場合、ヘーズ(%)の値が高いものほど、下地をぼかす効果(いわゆるソフトフォーカス効果)が高いことを意味する。
Claims (8)
- 一次粒子径が0.01μm以上、アスペクト比が2.5以上で、
透過型電子顕微鏡写真における250個の粒子中、以下の(1)(2)を全て満たす粒子が50%以上となる六角形状面を有することを特徴とする六角板状酸化亜鉛粒子。
(1) 六角形状の面を有すること
(2) Dmin/Dmax≧0.3
Dmax:六角板状酸化亜鉛粒子の六角形状面の3本の対角線のうち、最大となる対角線の長さを意味する
Dmin:六角板状酸化亜鉛粒子の六角形状面の3本の対角線のうち、最小となる対角線の長さを意味する - 微粒子酸化亜鉛を亜鉛塩水溶液中で熟成することによって得られたものである請求項1に記載の六角板状酸化亜鉛粒子。
- 微粒子酸化亜鉛を亜鉛塩水溶液中で熟成する工程を含むことを特徴とする請求項1又は2記載の六角板状酸化亜鉛粒子の製造方法。
- 請求項1又は2に記載の六角板状酸化亜鉛粒子を含有することを特徴とする化粧料。
- 請求項1又は2に記載の六角板状酸化亜鉛粒子からなることを特徴とする放熱性フィラー。
- 請求項1又は2に記載の六角板状酸化亜鉛粒子を含有することを特徴とする放熱性樹脂組成物。
- 請求項1又は2に記載の六角板状酸化亜鉛粒子を含有することを特徴とする放熱性グリース。
- 請求項1又は2に記載の六角板状酸化亜鉛粒子を含有することを特徴とする放熱性塗料組成物。
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07187673A (ja) | 1993-12-28 | 1995-07-25 | Asahi Kagaku Kogyo Co Ltd | 板状塩基性亜鉛塩結晶体の製造方法 |
JPH09137152A (ja) | 1987-11-16 | 1997-05-27 | Kao Corp | 紫外線吸収剤 |
JP2001163619A (ja) * | 1999-12-08 | 2001-06-19 | Tosoh Corp | 酸化亜鉛粉末の製造方法及びそのための製造用中間体 |
JP2007223874A (ja) | 2006-02-27 | 2007-09-06 | Kochi Univ | 酸化亜鉛粉末およびその製造方法 |
WO2010050430A1 (ja) * | 2008-10-27 | 2010-05-06 | 国立大学法人名古屋工業大学 | 柱状ZnO粒子の製造方法及びそれによって得られた柱状ZnO粒子 |
WO2011043207A1 (ja) * | 2009-10-07 | 2011-04-14 | 堺化学工業株式会社 | 酸化亜鉛粒子、その製造方法、放熱性フィラー、放熱性樹脂組成物、放熱性グリース及び放熱性塗料組成物 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5093099A (en) * | 1987-11-16 | 1992-03-03 | Kao Corporation | Flaky powder of zinc oxide and its composition for external use |
JP3948642B2 (ja) * | 1998-08-21 | 2007-07-25 | 信越化学工業株式会社 | 熱伝導性グリース組成物及びそれを使用した半導体装置 |
JP4767409B2 (ja) | 2000-12-27 | 2011-09-07 | モメンティブ・パフォーマンス・マテリアルズ・ジャパン合同会社 | 放熱グリース |
US20070154561A1 (en) * | 2004-02-18 | 2007-07-05 | Nippon Shokubai Co., Ltd. | Metal oxide particle and its uses |
US20110150792A1 (en) * | 2008-12-10 | 2011-06-23 | Yun Shao | Zinc oxide aqueous and non-aqueous dispersions |
KR20080107809A (ko) * | 2007-06-08 | 2008-12-11 | 최진호 | 산화아연의 광촉매 활성을 증가시키는 방법 및 광촉매활성이 증가된 산화아연을 포함하는 조성물 |
US20110081548A1 (en) | 2009-10-07 | 2011-04-07 | Sakai Chemical Industry Co., Ltd. | Zinc oxide particle, method for producing it, exoergic filler, exoergic resin composition, exoergic grease and exoergic coating composition |
US8399092B2 (en) * | 2009-10-07 | 2013-03-19 | Sakai Chemical Industry Co., Ltd. | Zinc oxide particle having high bulk density, method for producing it, exoergic filler, exoergic resin composition, exoergic grease and exoergic coating composition |
ES2665303T3 (es) * | 2011-04-28 | 2018-04-25 | Sakai Chemical Industry Co., Ltd. | Partículas de óxido de cinc, procedimiento de producción de las mismas, material cosmético, carga disipadora de calor, composición de resina disipadora de calor, grasa disipadora de calor y composición de recubrimiento disipadora de calor |
US9120681B2 (en) * | 2011-04-28 | 2015-09-01 | Sakai Chemical Industry Co., Ltd. | Method for production of zinc oxide particles |
CA2834233C (en) * | 2011-04-28 | 2019-02-26 | Sakai Chemical Industry Co., Ltd. | Hexagonal prism-shaped zinc oxide particles and method for production of the same |
-
2012
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09137152A (ja) | 1987-11-16 | 1997-05-27 | Kao Corp | 紫外線吸収剤 |
JPH07187673A (ja) | 1993-12-28 | 1995-07-25 | Asahi Kagaku Kogyo Co Ltd | 板状塩基性亜鉛塩結晶体の製造方法 |
JP2001163619A (ja) * | 1999-12-08 | 2001-06-19 | Tosoh Corp | 酸化亜鉛粉末の製造方法及びそのための製造用中間体 |
JP2007223874A (ja) | 2006-02-27 | 2007-09-06 | Kochi Univ | 酸化亜鉛粉末およびその製造方法 |
WO2010050430A1 (ja) * | 2008-10-27 | 2010-05-06 | 国立大学法人名古屋工業大学 | 柱状ZnO粒子の製造方法及びそれによって得られた柱状ZnO粒子 |
WO2011043207A1 (ja) * | 2009-10-07 | 2011-04-14 | 堺化学工業株式会社 | 酸化亜鉛粒子、その製造方法、放熱性フィラー、放熱性樹脂組成物、放熱性グリース及び放熱性塗料組成物 |
Non-Patent Citations (2)
Title |
---|
S.P.GARCIA ET AL.: "Controlling the Morphology of Zinc Oxide Nanorods Crystallized from Aqueous Solutions: The Effect of Crystal Growth Modifiers on Aspect Ratio", CHEMISTRY OF MATERIALS, vol. 19, no. 16, 7 August 2007 (2007-08-07), pages 4016 - 4022, XP055124288 * |
See also references of EP2703352A4 |
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Also Published As
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TW201247548A (en) | 2012-12-01 |
JP5907166B2 (ja) | 2016-04-20 |
CN103492320B (zh) | 2015-07-22 |
US20140050925A1 (en) | 2014-02-20 |
US9339445B2 (en) | 2016-05-17 |
TWI530457B (zh) | 2016-04-21 |
EP2703352A1 (en) | 2014-03-05 |
KR20140016310A (ko) | 2014-02-07 |
CN103492320A (zh) | 2014-01-01 |
CA2834229C (en) | 2019-02-19 |
EP2703352A4 (en) | 2015-03-25 |
EP2703352B1 (en) | 2020-03-18 |
KR101907939B1 (ko) | 2018-10-16 |
JPWO2012147886A1 (ja) | 2014-07-28 |
CA2834229A1 (en) | 2012-11-01 |
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