WO2004060803A1 - 高分散性疎水性シリカ微粉末とその製造方法 - Google Patents
高分散性疎水性シリカ微粉末とその製造方法 Download PDFInfo
- Publication number
- WO2004060803A1 WO2004060803A1 PCT/JP2003/016807 JP0316807W WO2004060803A1 WO 2004060803 A1 WO2004060803 A1 WO 2004060803A1 JP 0316807 W JP0316807 W JP 0316807W WO 2004060803 A1 WO2004060803 A1 WO 2004060803A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- powder
- silica
- fine
- hydrophobic
- highly dispersible
- Prior art date
Links
Classifications
-
- 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
- C09C1/28—Compounds of silicon
- C09C1/30—Silicic acid
- C09C1/3081—Treatment with organo-silicon compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
-
- 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
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
Definitions
- the present invention relates to highly dispersible hydrophobic silica and its production. High dispersion of the present invention
- Hydrophobic silica fine powder is used as a viscosity filler for resins such as agents and paints, or as a captive filler for natural rubber, synthetic rubber, and engineering plastics. ], Or Polyethylene ⁇ Polyester, etc. Filler / REM for preventing blocking or electrophotographic toner It is suitable.
- the powder is treated with a surface modification agent such as a silane coupling agent or a polymer depending on the application, and is multifunctional by chemically converting the water on the powder surface. It is empowered to grant 14. For example, it has been carried out to convert the powder of the sily powder, which shows normality by the water surface of the powder surface, to a hydrophobic powder using a suitable force UPC polymer. Specifically, organic is from 3 ⁇ 4zK of treated 3 ⁇ 4 * silica force s conventionally Roshiran, for example is saying to the sixth 3 7 8 4 Pat insects patent.
- the hydrophobized silica fine powder is used as a filler or reinforcing material for resin, or as a resin powder »I ⁇ IJ.
- the hydrophobic nature of the silica powder improves the resilience of the silica powder to resin, such as silicone resin, epoxy resin, etc. Can be improved.
- the effect of improving the property of the resin powder such as preventing the adsorption of ⁇ K, can be obtained.
- silica powder having a large specific fiber size is effective in improving the properties of the resin powder because the average primary particle diameter is small, and is also high in the loading of resin, rubber, and plastic.
- the power that can be obtained is known.
- ⁇ ⁇ such as a transparent resin is known for its transparency, but also for its high level and flatness.
- the conventional hydrophobic silica powder has a relatively small specific fiber. Specifically, those having a specific surface fiber of 200 m 2 / g or less have a uniform hydrophobicity.
- a finely divided silica powder having a surface 3 ⁇ 4 has a problem that it is generally hydrophobic and the processing uniformity is low.
- the silica fine powder of the high ratio table cannot obtain a uniform 3 ⁇ 4K ⁇ silicone power; Therefore, the gas in the wisteria tank is restricted to the range of 1.4 to 3.0 cm / sec to suppress the leakage and the dripping of silica, and to reduce the processing g3 ⁇ 4.
- the silica powder is of the order of specific surface l 3 0m 2 / g
- the present invention is silica force late S3 ⁇ 4 fine high specific table to problems.
- the processing agent or the surface of the silica powder may be damaged.
- anyone who has a silica powder surface will not only adversely affect the sparseness, but will also have a particularly large effect on the viscous silica powder.
- the electric charge can be obtained by surface weaving with iron powder, but if the surface of the powder is too thin, the desired electric charge cannot be obtained.
- the silica fine powder may become yellowish due to the carbon that has been turned on. Such coloring impairs ⁇ ! When applying silicone powder to silicone resin or acrylic resin.
- the present invention has solved the above-mentioned problem in the sintering treatment of such fine silica powder, and has developed a fine powder of hydrophobic silica excellent in dispersibility despite being a fine powder having a high ratio table B3 ⁇ 4. Inferior.
- the present invention relates to a diacid I / bleed 7-silica having the following constitution, a powder and a method for producing the same.
- the BET ratio table is 200 m7 g or more, and the residual: is 100, and the above (1) or (2) is obtained by aggregating fine silica powder synthesized by the following method. ) High ⁇ '
- the silica ⁇ powder of the present invention is a Tsuruta silica powder which has been subjected to ⁇ / W doubling, and has a hydrophobicity of 50% or more, and a ⁇ electric charge of iron powder of more than 150 C / g.
- the above silica fine powder of the present invention can be obtained as a raw material from fine silica powder synthesized by the eye method or drying.
- a fine powder having a BET ratio of 200 m 2 / g or more can be used as this raw material powder.
- the so-called fumed silica of less than 400m7g by nitrogen adsorption method (BET method) (trade name: AEROSIL200, 300, 380, 380S, Japan) Aerojirune: I product) force s using et al is.
- the silica of the present invention which has a residual salt of less than 10 Oppro, is used.
- the emulsification concentration is higher than this, it is adsorbed on the powder surface when the powder is shelved:
- the adsorption efficiency of activated ⁇ is low, resulting in In this case, the processing S3 ⁇ 4 is reduced.
- Silica with low ratio table » The effect is small, but this effect is large in the silica fine powder of the high ratio table II.
- the siri force of the present invention can be used for hydrophobizing the powder.
- silane organic siloxane, and the like can be used.
- siloxane otatamethylcyclotetrasiloxane.
- Floor TOTff is suitable as a treatment device.
- the gas flow in this S) 3 ⁇ 4f should be 3.0 cm / sec or more. If the gas »zura is lower than this, the Nada condition will become unstable, and the fine particles will reappear, and the desired high dispersibility will not be obtained. This tendency is prominent in ⁇ , which is a trend of silica powder of Kohei Oran.
- the gas wisteria speed is more preferably 3.5 m / sec or more.
- Nitrogen gas is suitable as the carrier's inert gas in terms of cost.
- the gasified j3 ⁇ 47_K agent is preferably introduced into the I layer by an injector or the like. This gas is hazy depending on the pressure and amount of the inert gas and the diameter of the injection nozzle in the injector. Control these parameters by adjusting these parameters.
- Gas 3 ⁇ 4 is more than 5.0 cm / sec.
- the gas for introducing the emulsifier is lower than this, it is difficult to loosen the silica powder, and the properties of the j3 ⁇ 47_K silica powder are reduced. Also, in order to further unravel the silica powder fiber and improve the ⁇ state, a mixture of the silica powder and the ⁇ compound After that, it may be introduced into the powder. As a powder problem, you can use a stone mill (jet mill) or high-speed recirculation.
- 3 ⁇ 47 ⁇ 1 ⁇ ⁇ ⁇ is appropriate at 450 ° C ⁇ 600 ° C, and more preferably at 4300 ⁇ 550 ° C. If it is lower than this, the rate will decrease. On the other hand, if the height is higher than this, the cat on the silica powder surface will be accelerated. The lower the wisteria concentration, the lower the cost in terms of IJ. By injecting a large amount of inert gas, the concentration of ⁇ in the recharge tank decreases masculinely.
- the BET specific fiber is more than 200 m 2 / g in fine powder, more than 50% hydrophobic, and ⁇ — Higher than 500 ⁇ C / g, less than 15% of the thigh on the powder surface, and 5% alcohol.
- Silica »powder can be obtained.
- the viscous silica of the present invention has a high __K property of 50% or more and a high __K property, the ⁇ ⁇ of the powder surface is suppressed to 15% or less. It is possible to obtain a high charged amount where ⁇ is larger than 150 ⁇ C / g.
- the hydrophobic silica fine powder of the present invention has excellent properties, and the silica powder of the present invention is dispersed in a 5% alcohol solution. Rate can be obtained.
- the J-based silica of the present invention is a finely-divided silica having a high powder ratio, a low powder surface, and excellent properties, even though it is a fine powder having a high ratio. Therefore, the high- ⁇ zk silica powder of the present invention can be used for natural rubber or natural rubber or the like. It is suitable as a reinforcing filler such as synthetic rubber and engineering plastics, as a filler for preventing blockage of shelf finolem, and as a flow improver for electrophotographic toner ⁇ H paint. Best mode for making invention
- Hydrophobized silica fine powder is added to an ethyl silicate under the hydration power or sodium oxide fc, and the surface is treated with an alkali.
- the organic group that has been converted to ethoxy becomes the corresponding ethoxysilane as ethyl silicate. Specifically, it is dimethyl ethoxy silane and methyl triethoxy silane.
- the product is analyzed by gas chromatography to measure the ratio of various ethoxysilanes, and based on this, the presence of the silicon powder is determined.
- Example 1 The same conditions as in Example 1 except that amorphous silica with a specific surface fiber of 300 m 2 / g and a residual of 5 Oppm was used, and the dimethyldichlorosilane was 0.6 kg / h. 3 ⁇ 4zK conversion was performed.
- Table 1 shows the ⁇ ⁇ ⁇ , carbon content, 3 ⁇ 4, sickle charge, 3 ⁇ 4ii ratio of the alcohol dispersion, and IIII of the dispersion of the produced ⁇ 7 ⁇ raw silica fine powder together with the hydrophobic ⁇ cow.
- Treatment U was subjected to hydrophobization treatment under the same conditions as in Example 1 except that Otatamethyltetracyclosiloxane (D 4) was used.
- Table 1 shows the produced hydrophobic silica »powder, and the amount of carbon produced, the amount of carbon produced, the amount of ⁇ , the amount of ⁇ , the ratio of alcoholic ⁇ ⁇ , and the female of the dispersion, together with the water-phobic cow.
- Example 2 the hydrophobization key was performed under the same conditions as in Difficult Example 2, except that the treatment was carried out using octamethyltetracyclosiloxane (D 4).
- D 4 octamethyltetracyclosiloxane
- ⁇ of the sickle is shown in Table 1 together with the hydrophobic cow.
- Example 2 except that the gas velocity of dimethyldichlorosilane was adjusted to 21 cm / sec, JfeK conversion ⁇ was performed using the same ⁇ ! Cow as in Example 2.
- Difficult Example 2 the spinning treatment was performed in the same manner as in Difficult Example 2 except that the powdered sieve having a residual content of 140 ppm was used.
- the ratio, carbon content, hydrophobicity, friction amount, alcohol dispersion rate, and appearance of the separation fiber are shown in Table 1 together with iSzK ( ⁇ ).
- Example 3 i3 ⁇ 4 _K was obtained under the same conditions as in row f except that the amount of inert gas (nitrogen gas) for »was reduced to 1, 10 and the gas leak was 1.5 cm / sec. I did a dungeon. Hydrophobic silica produced, organic about powder, «carbon content, 7ki,
- the conversion rate of the alcohol dispersion and the ⁇ of the dispersion are shown in Table 1 together with the hydrophobicity.
- the 3 ⁇ 4 ⁇ ⁇ ratio of the powder surface is higher than in the example,
- the highly dispersible hydrophobic silica of the present invention is ⁇ , the adhesive is U and the paint is filled with rice occupied by Sffl ij, natural rubber, synthetic rubber and engineered plastics, etc. It is suitable as a film for preventing blocking of film [
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/540,002 US7494636B2 (en) | 2002-12-27 | 2003-12-25 | Highly dispersible fine hydrophobic silica powder and process for producing the same |
EP03786324.8A EP1577264B1 (en) | 2002-12-27 | 2003-12-25 | Highly dispersible, fine, hydrophobic silica powder and process for producing the same |
AU2003296126A AU2003296126A1 (en) | 2002-12-27 | 2003-12-25 | Highly dispersible, fine, hydrophobic silica powder and process for producing the same |
JP2004564533A JP4968569B2 (ja) | 2002-12-27 | 2003-12-25 | 高分散性疎水性シリカ微粉末とその製造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-379842 | 2002-12-27 | ||
JP2002379842 | 2002-12-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004060803A1 true WO2004060803A1 (ja) | 2004-07-22 |
Family
ID=32708410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/016807 WO2004060803A1 (ja) | 2002-12-27 | 2003-12-25 | 高分散性疎水性シリカ微粉末とその製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7494636B2 (ja) |
EP (1) | EP1577264B1 (ja) |
JP (1) | JP4968569B2 (ja) |
AU (1) | AU2003296126A1 (ja) |
WO (1) | WO2004060803A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006249272A (ja) * | 2005-03-11 | 2006-09-21 | Toray Ind Inc | 芳香族ポリアミドの製造方法、組成物及びそれからなるフィルム |
JP2014009122A (ja) * | 2012-06-29 | 2014-01-20 | Nippon Electric Glass Co Ltd | ガラス原料及びガラスの製造方法 |
JP2014162681A (ja) * | 2013-02-26 | 2014-09-08 | Nippon Aerosil Co Ltd | 表面処理シリカ粉末及びその製造方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101389715A (zh) * | 2006-01-19 | 2009-03-18 | 陶氏康宁公司 | 官能化含硅烷粒状材料的系统与方法 |
EP2025722A1 (de) * | 2007-07-30 | 2009-02-18 | Nanoresins AG | Verfahren zur Herstellung eines nanoskaligen Siliciumdioxids |
CZ28470U1 (cs) * | 2015-06-03 | 2015-07-14 | Koh-I-Noor Hardtmuth A.S. | Prášková vodová barva |
CN114402040A (zh) * | 2019-10-02 | 2022-04-26 | 加利福尼亚大学董事会 | 疏水改性颜料组合物 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3924029A (en) * | 1962-03-30 | 1975-12-02 | Degussa | Method of modifying the surface properties of finely divided metal oxides |
EP0799791A1 (en) * | 1995-10-02 | 1997-10-08 | Mitsubishi Materials Corporation | Hydrophobic metal oxide powder and use thereof |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1163784C2 (de) * | 1962-03-30 | 1973-05-03 | Degussa | Verfahren zur Oberflaechenbehandlung von hochdispersen Oxyden |
DE3750157T2 (de) * | 1986-12-01 | 1994-11-10 | Canon Kk | Entwickler für die Entwicklung elektrostatischer latenter Bilder und Bildherstellungsverfahren. |
JP3367350B2 (ja) * | 1995-10-02 | 2003-01-14 | 三菱マテリアル株式会社 | 疎水性金属酸化物粉体とその用途 |
JP3367349B2 (ja) * | 1995-10-02 | 2003-01-14 | 三菱マテリアル株式会社 | 疎水性金属酸化物粉体とその用途 |
DE69940446D1 (de) | 1998-05-11 | 2009-04-02 | Nippon Aerosil Co Ltd | Verfahren zur Herstellung feiner hydrophober Metalloxidpulver für die Elektrophotographie |
WO2001048094A1 (fr) | 1999-12-24 | 2001-07-05 | Nippon Aerosil Co., Ltd. | Poudre d'oxyde inorganique a surface modifiee, procede de production associe et utilisation de cette poudre |
JP4512872B2 (ja) * | 2000-03-31 | 2010-07-28 | 日本アエロジル株式会社 | 表面改質シリカ微粉末とその製造方法 |
JP3685250B2 (ja) * | 2000-08-31 | 2005-08-17 | 信越化学工業株式会社 | 疎水性二酸化珪素微粉末の製造方法及び製造装置 |
DE10145162A1 (de) * | 2001-09-13 | 2003-04-10 | Wacker Chemie Gmbh | Kieselsäure mit geringem Gehalt an Kieselsäure-Silanolgruppen |
-
2003
- 2003-12-25 WO PCT/JP2003/016807 patent/WO2004060803A1/ja active Application Filing
- 2003-12-25 JP JP2004564533A patent/JP4968569B2/ja not_active Expired - Lifetime
- 2003-12-25 US US10/540,002 patent/US7494636B2/en not_active Expired - Fee Related
- 2003-12-25 AU AU2003296126A patent/AU2003296126A1/en not_active Abandoned
- 2003-12-25 EP EP03786324.8A patent/EP1577264B1/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3924029A (en) * | 1962-03-30 | 1975-12-02 | Degussa | Method of modifying the surface properties of finely divided metal oxides |
EP0799791A1 (en) * | 1995-10-02 | 1997-10-08 | Mitsubishi Materials Corporation | Hydrophobic metal oxide powder and use thereof |
Non-Patent Citations (1)
Title |
---|
See also references of EP1577264A4 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006249272A (ja) * | 2005-03-11 | 2006-09-21 | Toray Ind Inc | 芳香族ポリアミドの製造方法、組成物及びそれからなるフィルム |
JP2014009122A (ja) * | 2012-06-29 | 2014-01-20 | Nippon Electric Glass Co Ltd | ガラス原料及びガラスの製造方法 |
JP2014162681A (ja) * | 2013-02-26 | 2014-09-08 | Nippon Aerosil Co Ltd | 表面処理シリカ粉末及びその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
AU2003296126A1 (en) | 2004-07-29 |
EP1577264A4 (en) | 2010-08-11 |
US20060067867A1 (en) | 2006-03-30 |
US7494636B2 (en) | 2009-02-24 |
JP4968569B2 (ja) | 2012-07-04 |
EP1577264B1 (en) | 2013-05-08 |
EP1577264A1 (en) | 2005-09-21 |
JPWO2004060803A1 (ja) | 2006-05-11 |
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