WO2015137345A1 - 含フッ素酸化チタン-ナノシリカコンポジット粒子およびその製造法 - Google Patents
含フッ素酸化チタン-ナノシリカコンポジット粒子およびその製造法 Download PDFInfo
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- WO2015137345A1 WO2015137345A1 PCT/JP2015/057024 JP2015057024W WO2015137345A1 WO 2015137345 A1 WO2015137345 A1 WO 2015137345A1 JP 2015057024 W JP2015057024 W JP 2015057024W WO 2015137345 A1 WO2015137345 A1 WO 2015137345A1
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- Prior art keywords
- fluorine
- titanium oxide
- nanosilica
- weight
- carbon atoms
- Prior art date
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- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 74
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 239000011737 fluorine Substances 0.000 title claims abstract description 72
- 239000011246 composite particle Substances 0.000 title claims abstract description 35
- 239000010936 titanium Substances 0.000 title claims abstract description 28
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 28
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 47
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 42
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 39
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 37
- 239000002245 particle Substances 0.000 claims abstract description 29
- 125000005010 perfluoroalkyl group Chemical group 0.000 claims abstract description 22
- 125000006551 perfluoro alkylene group Chemical group 0.000 claims abstract description 13
- 125000002947 alkylene group Chemical group 0.000 claims abstract description 8
- 125000001153 fluoro group Chemical group F* 0.000 claims abstract description 7
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 6
- 150000001298 alcohols Chemical class 0.000 claims description 10
- 125000003118 aryl group Chemical group 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000003054 catalyst Substances 0.000 claims description 8
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 8
- 229910052717 sulfur Inorganic materials 0.000 claims description 8
- 125000004434 sulfur atom Chemical group 0.000 claims description 8
- 238000006482 condensation reaction Methods 0.000 claims description 7
- 230000002378 acidificating effect Effects 0.000 claims description 6
- 239000012756 surface treatment agent Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- -1 ether diol Chemical class 0.000 claims description 4
- 239000004480 active ingredient Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- PGFXOWRDDHCDTE-UHFFFAOYSA-N hexafluoropropylene oxide Chemical compound FC(F)(F)C1(F)OC1(F)F PGFXOWRDDHCDTE-UHFFFAOYSA-N 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- AQYSYJUIMQTRMV-UHFFFAOYSA-N hypofluorous acid Chemical group FO AQYSYJUIMQTRMV-UHFFFAOYSA-N 0.000 claims description 2
- LZQHZOIDAMYHSS-UHFFFAOYSA-N [F].[Ti] Chemical compound [F].[Ti] LZQHZOIDAMYHSS-UHFFFAOYSA-N 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 239000000047 product Substances 0.000 abstract description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 abstract description 4
- 229910000040 hydrogen fluoride Inorganic materials 0.000 abstract description 4
- 239000011941 photocatalyst Substances 0.000 abstract description 4
- 239000007859 condensation product Substances 0.000 abstract 1
- 230000006866 deterioration Effects 0.000 abstract 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 33
- 238000010304 firing Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 8
- 238000000354 decomposition reaction Methods 0.000 description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 4
- ATHHXGZTWNVVOU-UHFFFAOYSA-N N-methylformamide Chemical compound CNC=O ATHHXGZTWNVVOU-UHFFFAOYSA-N 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000002296 dynamic light scattering Methods 0.000 description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229960000907 methylthioninium chloride Drugs 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
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- 239000002114 nanocomposite Substances 0.000 description 3
- 230000001699 photocatalysis Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 239000003377 acid catalyst Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000003682 fluorination reaction Methods 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002940 repellent Effects 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 238000002411 thermogravimetry Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- NKLYMYLJOXIVFB-UHFFFAOYSA-N triethoxymethylsilane Chemical compound CCOC([SiH3])(OCC)OCC NKLYMYLJOXIVFB-UHFFFAOYSA-N 0.000 description 2
- PSQZJKGXDGNDFP-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropan-1-ol Chemical compound OCC(F)(F)C(F)(F)F PSQZJKGXDGNDFP-UHFFFAOYSA-N 0.000 description 1
- PJRIQFXPYMVWOU-UHFFFAOYSA-N 2,2,3,3,4,4,5,5,5-nonafluoropentan-1-ol Chemical compound OCC(F)(F)C(F)(F)C(F)(F)C(F)(F)F PJRIQFXPYMVWOU-UHFFFAOYSA-N 0.000 description 1
- JUGSKHLZINSXPQ-UHFFFAOYSA-N 2,2,3,3,4,4,5,5-octafluoropentan-1-ol Chemical compound OCC(F)(F)C(F)(F)C(F)(F)C(F)F JUGSKHLZINSXPQ-UHFFFAOYSA-N 0.000 description 1
- NBUKAOOFKZFCGD-UHFFFAOYSA-N 2,2,3,3-tetrafluoropropan-1-ol Chemical compound OCC(F)(F)C(F)F NBUKAOOFKZFCGD-UHFFFAOYSA-N 0.000 description 1
- LVFXLZRISXUAIL-UHFFFAOYSA-N 2,2,3,4,4,4-hexafluorobutan-1-ol Chemical compound OCC(F)(F)C(F)C(F)(F)F LVFXLZRISXUAIL-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- HDBGBTNNPRCVND-UHFFFAOYSA-N 3,3,3-trifluoropropan-1-ol Chemical compound OCCC(F)(F)F HDBGBTNNPRCVND-UHFFFAOYSA-N 0.000 description 1
- JPMHUDBOKDBBLG-UHFFFAOYSA-N 3,3,4,4,4-pentafluorobutan-1-ol Chemical compound OCCC(F)(F)C(F)(F)F JPMHUDBOKDBBLG-UHFFFAOYSA-N 0.000 description 1
- JCMNMOBHVPONLD-UHFFFAOYSA-N 3,3,4,4,5,5,6,6,6-nonafluorohexan-1-ol Chemical compound OCCC(F)(F)C(F)(F)C(F)(F)C(F)(F)F JCMNMOBHVPONLD-UHFFFAOYSA-N 0.000 description 1
- GRJRKPMIRMSBNK-UHFFFAOYSA-N 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctan-1-ol Chemical compound OCCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F GRJRKPMIRMSBNK-UHFFFAOYSA-N 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- RHQDFWAXVIIEBN-UHFFFAOYSA-N Trifluoroethanol Chemical compound OCC(F)(F)F RHQDFWAXVIIEBN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000035992 intercellular communication Effects 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- QLOAVXSYZAJECW-UHFFFAOYSA-N methane;molecular fluorine Chemical group C.FF QLOAVXSYZAJECW-UHFFFAOYSA-N 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- SNGREZUHAYWORS-UHFFFAOYSA-N perfluorooctanoic acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F SNGREZUHAYWORS-UHFFFAOYSA-N 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000010058 rubber compounding Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- JCVQKRGIASEUKR-UHFFFAOYSA-N triethoxy(phenyl)silane Chemical compound CCO[Si](OCC)(OCC)C1=CC=CC=C1 JCVQKRGIASEUKR-UHFFFAOYSA-N 0.000 description 1
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 1
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-UHFFFAOYSA-N 0.000 description 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 description 1
- 238000002211 ultraviolet spectrum Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
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- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/06—Halogens; Compounds thereof
- B01J27/135—Halogens; Compounds thereof with titanium, zirconium, hafnium, germanium, tin or lead
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0201—Oxygen-containing compounds
- B01J31/0202—Alcohols or phenols
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0231—Halogen-containing compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/12—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides
- B01J31/123—Organometallic polymers, e.g. comprising C-Si bonds in the main chain or in subunits grafted to the main chain
- B01J31/124—Silicones or siloxanes or comprising such units
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/38—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of titanium, zirconium or hafnium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/36—Compounds of titanium
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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
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- C01P2004/60—Particles characterised by their size
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Definitions
- the present invention relates to fluorine-containing titanium oxide-nanosilica composite particles and a method for producing the same. More specifically, the present invention relates to a fluorine-containing titanium oxide-nanosilica composite particle using a fluorine-containing alcohol that is easy to handle and a method for producing the same.
- Anatase-type titanium oxide used as a photocatalyst changes its crystal structure to a rutile type when heated at a high temperature, and the catalytic activity is significantly reduced. Therefore, it is known that the crystal structure transition to the rutile type can be suppressed by surface modification or fluorination of titanium oxide.
- Patent Document 1 since hydrogen fluoride is used as a fluorine source, special equipment resistant to hydrogen fluoride is required.
- Patent Document 2 discloses a liquid, fluorine-containing and single component composition for permanent oil and water resistant surface treatment of porous and non-porous substrates, with appropriate stabilizing components and hydrophilicity. Compositions with excellent storage stability, hydrophobicity, oleophobicity and dust resistance in combination with silane components are described.
- Patent Documents 3 to 4 describe that a fluorine-containing alcohol and an alkoxysilane (and a polymerizable functional group-containing alcohol) are subjected to a condensation reaction.
- the obtained alkoxysilane derivative is a photoacid generator or a photobase. It is used for the preparation of a curable composition to which a generator is added, or an inorganic conductive coating composition.
- JP 2010-073914 A Special table 2011-511113 gazette JP 2004-285111 A JP-A-5-186719 Japanese Patent No. 4673604 WO 2007/080949 A1 JP 2008-38015 A U.S. Pat. No. 3,574,770
- the object of the present invention is to have a unit that is not difficult to handle like hydrogen fluoride, does not produce perfluorooctanoic acid or the like even when released into the environment, and is easily decomposed into short-chain compounds.
- Fluorine-containing titanium oxide-nanosilica composite particles that can be produced using fluorine-containing alcohols that are easy to handle, and that the product can suppress a decrease in the function of titanium oxide as a photocatalyst even when subjected to high-temperature heat treatment, and its It is to provide a manufacturing method.
- R F is a perfluoroalkyl group having 6 or less carbon atoms, or a part of the fluorine atom of the perfluoroalkyl group is substituted with a hydrogen atom, and the terminal perfluoroalkyl group having 6 or less carbon atoms and the carbon number A fluoroalcohol group comprising 6 or less perfluoroalkylene groups, and A is an alkylene group having 1 to 6 carbon atoms).
- Fluorine-containing titanium oxide-nanosilica composite particles comprising a condensate are provided. The number of carbons is preferably 4-6.
- Such fluorine-containing titanium oxide-nanosilica composite particles are produced by a method in which the fluorine-containing alcohol [I] and alkoxysilane are subjected to a condensation reaction using an alkaline or acidic catalyst in the presence of titanium oxide and nanosilica particles.
- the obtained fluorine-containing titanium oxide-nanosilica composite particles are used as an active ingredient of a surface treatment agent such as a water / oil repellent.
- R F ′ is a linear or branched perfluoroalkyl group containing an O, S or N atom having a terminal perfluoroalkyl group having 6 or less carbon atoms and a perfluoroalkylene group having 6 or less carbon atoms.
- R F ′′ is a linear or branched perfluoroalkylene group containing an O, S or N atom having a perfluoroalkylene group having 6 or less carbon atoms, and A is 1 to 6 carbon atoms.
- fluorine-containing titanium oxide-nanosilica composite particles composed of a condensate of a fluorine-containing alcohol and an alkoxysilane, and titanium oxide and nanosilica particles.
- the number of carbons is preferably 4-6.
- Such a fluorine-containing titanium oxide-nanosilica composite particle is obtained by a method in which the fluorine-containing alcohol [Ia] or [Ib] and alkoxysilane are subjected to a condensation reaction using an alkaline or acidic catalyst in the presence of titanium oxide and nanosilica particles.
- the produced and obtained fluorine-containing titanium oxide-nanosilica composite particles are used as an active ingredient of a surface treatment agent such as a water / oil repellent.
- the fluorine-containing alcohol used in the present invention has a perfluoroalkylene chain having 6 or less carbon atoms in the terminal perfluoroalkyl group or polyfluoroalkyl group, and decomposes into a short-chain fluorine-containing compound having 6 or less carbon atoms. Because it has a unit that is easily handled, it does not lead to environmental pollution.
- Fluorine-containing titanium oxide-nanosilica composite particles obtained by the coexistence of titanium oxide and organo-nanosilica particles during the condensation reaction of fluorine-containing alcohol and alkoxysilane are new fluorine-containing compounds and contain 1000 fluorine atoms. Even if a high-temperature heat treatment up to 0 ° C. is performed, it is possible to suppress a decrease in function as a photocatalyst. In addition, by incorporating fluorine atoms into titanium oxide, titanium oxide having improved photocatalytic activity as compared with the raw material titanium oxide can be obtained.
- fluorine-containing alcohol [I] for example, the general formula C n F 2n + 1 (CH 2 ) j OH [II] n: 1 to 10, preferably 4 to 8 j: 1 to 6, preferably 1 to 3, particularly preferably 2
- the polyfluoroalkyl alcohol represented by these is used.
- alkylene group A examples include —CH 2 — group, —CH 2 CH 2 — group, etc.
- perfluoroalkylalkyl alcohols having such an alkylene group include 2,2,2-trifluoroethanol (CF 3 CH 2 0H), 3,3,3-trifluoro-propanol (CF 3 CH 2 CH 2 OH ), 2,2,3,3,3- pentafluoro-propanol (CF 3 CF 2 CH 2 0H ), 3,3, 4,4,4-pentafluorobutanol (CF 3 CF 2 CH 2 CH 2 OH), 2,2,3,3,4,4,5,5,5-nonafluoropentanol (CF 3 CF 2 CF 2 CH 2 0H), 3,3,4,4,5,5,6,6,6-nonafluorohexanol (CF 3 CF 2 CF 2 CH 2 CH 2 OH), 3,3,4, 4,5,5,6,6,6-nonafluorohexanol (CF 3 CF 2 CF 2 CH 2
- the polyfluoroalkyl group is a group in which the terminal —CF 3 group of the perfluoroalkyl group is replaced with, for example, —CF 2 H group, or the intermediate —CF 2 — group is —CFH— group or —CH 2 — group.
- fluorinated alcohol [I] having such a substituent for example, 2,2,3,3-tetrafluoropropanol (HCF 2 CF 2 CH 2 OH), 2,2 , 3,4,4,4-hexafluoro-butanol (CF 3 CHFCF 2 CH 2 OH ), 2,2,3,3,4,4,5,5- octafluoropentanol (HCF 2 CF 2 CF 2 CF 2 CH 2 OH) and the like.
- the polyfluoroalkyl alcohol represented by the general formula [II] is described in, for example, Patent Document 5 and synthesized through the following series of steps.
- the general formula C n F 2n + 1 (CF 2 CF 2 ) b (CH 2 CH 2 ) c I A polyfluoroalkyl iodide represented by, for example, CF 3 (CH 2 CH 2 ) I CF 3 (CH 2 CH 2 ) 2 I C 2 F 5 (CH 2 CH 2 ) I C 2 F 5 (CH 2 CH 2 ) 2 I C 3 F 7 (CH 2 CH 2 ) I C 3 F 7 (CH 2 CH 2 ) 2 I C 4 F 9 (CH 2 CH 2 ) I C 4 F 9 (CH 2 CH 2 ) 2 I C 2 F 5 (CF 2 CF 2 ) (CH 2 CH 2 ) I C 2 F 5 (CF 2 CF 2 ) (CH 2 CH 2 ) I C 2 F 5 (CF 2 CF 2 ) (CH 2 CH 2 ) 2 I C 2 F 5
- R F group is part of the fluorine atoms of the perfluoroalkyl group is replaced by hydrogen atoms, perfluoroalkylene having 6 or less of terminal perfluoroalkyl group and having a carbon number of 6 or less carbon atoms
- a polyfluoroalkyl group comprising a group, specifically a polyfluoroalkyl group having 3 to 20 carbon atoms, preferably 6 to 10 carbon atoms, and A is an alkylene having 2 to 6 carbon atoms, preferably 2 carbon atoms
- Fluorine-containing alcohol as a group for example, the general formula C n F 2n + 1 (CH 2 CF 2 ) a (CF 2 CF 2 ) b (CH 2 CH 2 ) c OH [III] n: 1 to 6, preferably 2 to 4 a: 1 to 4, preferably 1 b: 0-2, preferably 1-2 c: 1 to 3, preferably 1
- the polyfluoroalkyl alcohol represented by the general formula [III] is described in Patent Document 5, and is synthesized through the following series of steps.
- the general formula C n F 2n + 1 (CH 2 CF 2 ) a (CF 2 CF 2 ) b (CH 2 CH 2 ) c I A polyfluoroalkyl iodide represented by, for example, CF 3 (CH 2 CF 2 ) (CH 2 CH 2 ) I C 2 F 5 (CH 2 CF 2 ) (CH 2 CH 2 ) I C 2 F 5 (CH 2 CF 2 ) (CH 2 CH 2 ) 2 I C 3 F 7 (CH 2 CF 2 ) (CH 2 CH 2 ) I C 3 F 7 (CH 2 CF 2 ) (CH 2 CH 2 ) 2 I C 4 F 9 (CH 2 CF 2 ) (CH 2 CH 2 ) I C 4 F 9 (CH 2 CF 2 ) (CH 2 CH 2 ) 2 I C 2 F 5 (CH 2 CF 2 ) (CF 2
- the R F ′ group has a terminal perfluoroalkyl group having 6 or less carbon atoms and a perfluoroalkylene group having 6 or less carbon atoms, a straight chain containing O, S or N atoms, or A branched perfluoroalkyl group, specifically an O, S or N atom-containing perfluoroalkyl group having 3 to 305 carbon atoms, preferably 8 to 35 carbon atoms, and A being 1 to 3 carbon atoms, preferably Is a fluorine-containing alcohol which is an alkylene group of 1, for example, the general formula C m F 2m + 1 O [CF (CF 3 ) CF 2 O] d CF (CF 3 ) (CH 2 ) e OH [IIa] m: 1 to 3, preferably 3 d: 0 to 100, preferably 1 to 10 e: 1 to 3, preferably 1 The hexafluoropropene oxide oligomer alcohol
- the R F ′′ group has a perfluoroalkylene group having 6 or less carbon atoms, a linear or branched perfluoroalkylene group containing an O, S or N atom, Specifically, it is a perfluoroalkylene group containing 5 to 160 carbon atoms containing O, S or N atoms, and A is an alkylene group having 1 to 3 carbon atoms, preferably 1 carbon atom, such as the general formula HO (CH 2 ) f CF (CF 3 ) (OCF 2 CF (CF 3 )) g O (CF 2 ) h O (CF (CF 3 ) CF 2 O] i CF (CF 3 ) (CH 2 ) f OH [IIb] f: 1 to 3, preferably 1 g + i: 0 to 50, preferably 2 to 50 h: 1 to 6, preferably 2 A perfluoroalkylene ether diol represented by the formula:
- a fluorine-containing ether carboxylic acid alkyl ester represented by the general formula CF 3 O [CF (CF 3 ) CF 2 O] n CF (CF 3 ) COOR (R: alkyl group, n: integer of 0 to 12) is hydrogenated.
- Reduction reaction is performed using a reducing agent such as sodium borohydride.
- fluorine-containing alcohol and alkoxysilane are reacted in the presence of an alkaline or acidic catalyst, preferably an ammonia water catalyst, to form fluorine-containing nanocomposite particles.
- an alkaline or acidic catalyst preferably an ammonia water catalyst
- the ammonia water catalyst is used in a ratio of about 0.2 to 2.0 by weight with respect to the total amount of titanium oxide, nanosilica and alkoxysilane.
- the alkoxysilane has the general formula (R 1 O) p Si (OR 2 ) q (R 3 ) r (IV) R 1 , R 3 : H, C 1 -C 6 alkyl group or aryl group R 2 : C 1 -C 6 alkyl group or aryl group provided that R 1 , R 2 and R 3 are all aryl groups P + q + r: 4 where q is not 0, for example, trimethoxysilane, triethoxysilane, triethoxymethylsilane, triethoxymethylsilane, trimethoxyphenylsilane, triethoxyphenylsilane, tetra Methoxysilane, tetraethoxysilane, etc. are used.
- the reaction between these components may be an alkaline or acidic catalyst such as aqueous ammonia or an aqueous solution of an alkali metal or alkaline earth metal hydroxide such as sodium hydroxide, potassium hydroxide or calcium hydroxide, or hydrochloric acid or sulfuric acid.
- the reaction is carried out in the presence at a temperature of about 0 to 100 ° C., preferably about 10 to 30 ° C. for about 0.5 to 48 hours, preferably about 1 to 10 hours.
- the amount of the fluorinated alcohol in the obtained fluorinated nanocomposite particles is about 1-50 mol%, preferably about 5-30 mol%, and the composite particle diameter (measured by dynamic light scattering method) is about 20- 200 nm.
- titanium oxide anatase-type titanium oxide is used for photocatalysis. Since the product of the present invention is used for a surface treatment agent, a surface modifier, a flame retardant, a paint compounding agent, a resin compounding agent, a rubber compounding agent, etc., various titanium oxides corresponding to the use are used.
- the nanosilica particles have an average particle size (measured by dynamic light scattering method) of 5 to 200 nm, preferably 10 to 100 nm, and a primary particle size of 40 nm or less, preferably 5 to 30 nm, more preferably 10 to 100 nm.
- a 20 nm organosilica sol is used.
- Nissan Chemical Industries products methanol silica sol, SNOWTEX IPA-ST (isopropyl alcohol dispersion), SNOWTEX EG-ST (ethylene glycol dispersion), SNOWTEX MEK-ST (methyl ethyl ketone dispersion), Snowtex MIBK-ST (methyl isobutyl ketone dispersion) or the like is used.
- Each of these components is about 10 to 200 parts by weight, preferably about 50 to 150 parts by weight of nanosilica particles, and about 10 to 200 parts by weight of fluorinated alcohol, preferably 100 parts by weight of titanium oxide particles.
- About 50 to 150 parts by weight, and alkoxysilane is used in an amount of about 10 to 200 parts by weight, preferably about 50 to 150 parts by weight.
- the proportion of nanosilica particles used is less than this, the crystal structure of titanium oxide cannot be sufficiently retained by heat treatment, resulting in a decrease in optical activity. The surface is shielded too much by the silica, and the optical activity decreases.
- the proportion of the fluorinated alcohol used is less than this, the water / oil repellency becomes low.
- the proportion of alkoxysilane used is less than this, the dispersibility in the solvent is deteriorated, whereas if it is used in a proportion higher than this, the water / oil repellency is lowered.
- the reaction product fluorine-containing titanium oxide-nanosilica composite particles
- fluorine-containing alcohol bonded to the hydroxyl group on the surface of the nanosilica particles using a siloxane bond as a spacer, and thus the chemical and thermal stability of silica.
- Excellent water and oil repellency and antifouling properties of fluorine and fluorine are effectively exhibited, and the actual glass surface treated with fluorine-containing titanium oxide-nanosilica composite particles exhibits good water and oil repellency. Effects such as reducing weight loss at 1000 ° C are observed.
- the particle diameter and the variation of the fluorine-containing titanium oxide-nanosilica composite particles are also small.
- the fluorine-containing titanium oxide-nanosilica composite particles are formed as a reaction product of fluorine-containing alcohol and alkoxysilane with titanium oxide and nanosilica particles, but other components can be mixed unless the object of the present invention is impaired. Is done.
- Example 1 CF 3 (CF 2 ) 5 (CH 2 ) 2 OH [FA-6] 250 mg (0.69 mmol) was added and dissolved in 30 ml of methanol, and 250 mg of anatase-type titanium oxide and silica sol (Nissan Chemical Methanol) were dissolved in the solution.
- Silica sol containing 30 wt% nanosilica, average particle diameter 11 nm) 834 mg (250 mg as nanosilica) and tetraethoxysilane (Tokyo Kasei product; density 0.93 g / ml) 0.25 ml (1.13 mmol) were added and stirring with a magnetic stirrer Then, 0.5 ml of 25 wt% aqueous ammonia was added and the reaction was carried out for 5 hours.
- the particle size and variation of the obtained white powder fluorine-containing titanium oxide-nanosilica composite were measured by a dynamic light scattering (DLS) measurement method at 25 ° C. for a solid concentration of 1 g / L methanol dispersion. Further, thermogravimetric analysis (TGA) was performed before and after firing at 1000 ° C. At that time, the heating rate was 10 ° C./min. The particle diameter after firing is an average value of two times except for Example 1. Furthermore, the percentage of the weight reduced by firing relative to the initial weight was also calculated.
- DLS dynamic light scattering
- the obtained fluorine-containing titanium oxide-nanosilica composite particles were evaluated for photocatalytic function by methylene blue decomposition reaction as follows.
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Abstract
Description
RF-A-OH 〔I〕
(ここで、RFは炭素数6以下のパーフルオロアルキル基であり、またはパーフルオロアルキル基のフッ素原子の一部が水素原子で置換され、炭素数6以下の末端パーフルオロアルキル基および炭素数6以下のパーフルオロアルキレン基を含んで構成されるポリフルオロアルキル基であり、Aは炭素数1~6のアルキレン基である)で表される含フッ素アルコールとアルコキシシランおよび酸化チタンとナノシリカ粒子の縮合体からなる含フッ素酸化チタン-ナノシリカコンポジット粒子が提供される。炭素数としては、4~6が好ましい。
RF′-A-OH 〔Ia〕
または一般式
HO-A-RF′′-A-OH 〔Ib〕
(ここで、RF′は炭素数6以下の末端パーフルオロアルキル基および炭素数6以下のパーフルオロアルキレン基を有する、O、SまたはN原子を含有する直鎖状または分岐状パーフルオロアルキル基であり、RF′′は炭素数6以下のパーフルオロアルキレン基を有する、O、SまたはN原子を含有する直鎖状または分岐状のパーフルオロアルキレン基であり、Aは炭素数1~6のアルキレン基である)で表される含フッ素アルコールとアルコキシシランおよび酸化チタンとナノシリカ粒子の縮合体からなる含フッ素酸化チタン-ナノシリカコンポジット粒子が提供される。炭素数としては、4~6が好ましい。
CnF2n+1(CH2)jOH 〔II〕
n:1~10、好ましくは4~8
j:1~6、好ましくは1~3、特に好ましくは2
で表されるポリフルオロアルキルアルコール等が用いられる。
まず、一般式
CnF2n+1(CF2CF2)b(CH2CH2)cI
で表されるポリフルオロアルキルアイオダイド、例えば
CF3(CH2CH2)I
CF3(CH2CH2)2I
C2F5(CH2CH2)I
C2F5(CH2CH2)2I
C3F7(CH2CH2)I
C3F7(CH2CH2)2I
C4F9(CH2CH2)I
C4F9(CH2CH2)2I
C2F5(CF2CF2)(CH2CH2)I
C2F5(CF2CF2)(CH2CH2)2I
C2F5(CF2CF2)2(CH2CH2)I
C2F5(CF2CF2)2(CH2CH2)2I
C2F5(CF2CF2)3(CH2CH2)I
C4F9(CF2CF2)(CH2CH2)I
C4F9(CF2CF2)2(CH2CH2)I
C4F9(CF2CF2)(CH2CH2)2I
C4F9(CF2CF2)2(CH2CH2)2I
C4F9(CF2CF2)3(CH2CH2)I
をN-メチルホルムアミド HCONH(CH3)と反応させ、ポリフルオロアルキルアルコールとそのギ酸エステルとの混合物とした後、酸触媒の存在下でそれに加水分解反応させ、ポリフルオロアルキルアルコール
CnF2n+1(CF2CF2)b(CH2CH2)cOH
を形成させる。ただし、n+2bの値は6以下である。
CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOH 〔III〕
n:1~6、好ましくは2~4
a:1~4、好ましくは1
b:0~2、好ましくは1~2
c:1~3、好ましくは1
で表されるポリフルオロアルキルアルコール等が用いられる。
まず、一般式
CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cI
で表されるポリフルオロアルキルアイオダイド、例えば
CF3(CH2CF2)(CH2CH2)I
C2F5(CH2CF2)(CH2CH2)I
C2F5(CH2CF2)(CH2CH2)2I
C3F7(CH2CF2)(CH2CH2)I
C3F7(CH2CF2)(CH2CH2)2I
C4F9(CH2CF2)(CH2CH2)I
C4F9(CH2CF2)(CH2CH2)2I
C2F5(CH2CF2)(CF2CF2)(CH2CH2)I
C2F5(CH2CF2)(CF2CF2)(CH2CH2)2I
C2F5(CH2CF2)2(CF2CF2)(CH2CH2)I
C2F5(CH2CF2)2(CF2CF2)(CH2CH2)2I
C4F9(CH2CF2)(CF2CF2)(CH2CH2)I
C4F9(CH2CF2)2(CF2CF2)(CH2CH2)I
C4F9(CH2CF2)(CF2CF2)(CH2CH2)2I
C4F9(CH2CF2)2(CF2CF2)(CH2CH2)2I
をN-メチルホルムアミド HCONH(CH3)と反応させ、ポリフルオロアルキルアルコールとそのギ酸エステルとの混合物とした後、酸触媒の存在下でそれに加水分解反応させ、ポリフルオロアルキルアルコール
CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOH
を形成させる。
CmF2m+1O〔CF(CF3)CF2O〕dCF(CF3)(CH2)eOH 〔IIa〕
m:1~3、好ましくは3
d:0~100、好ましくは1~10
e:1~3、好ましくは1
で表されるヘキサフルオロプロペンオキシドオリゴマーアルコール等が用いられる。
HO(CH2)fCF(CF3)〔OCF2CF(CF3)〕gO(CF2)hO〔CF(CF3)CF2O〕iCF(CF3)(CH2)fOH
〔IIb〕
f:1~3、好ましくは1
g+i:0~50、好ましくは2~50
h:1~6、好ましくは2
で表されるパーフルオロアルキレンエーテルジオール等が用いられる。
一般式 CF3O〔CF(CF3)CF2O〕nCF(CF3)COOR (R:アルキル基、n:0~12の整数)で表される含フッ素エーテルカルボン酸アルキルエステルを、水素化ホウ素ナトリウム等の還元剤を用いて還元反応させる。
FOCRfCOF → H3COOCRfCOOCH3 → HOCH2RfCH2OH
Rf:-CF(CF3)〔OCF2C(CF3)〕aO(CF2)cO〔CF(CF3)CF2O〕bCF(CF3)-
(R1O)pSi(OR2)q(R3)r 〔IV〕
R1、R3:H、C1~C6のアルキル基またはアリール基
R2:C1~C6のアルキル基またはアリール基
ただし、R1、R2、R3が共にアリール基であることはない
p+q+r:4 ただし、qは0ではない
で表され、例えばトリメトキシシラン、トリエトキシシラン、トリエトキシメチルシラン、トリエトキシメチルシラン、トリメトキシフェニルシラン、トリエトキシフェニルシラン、テトラメトキシシラン、テトラエトキシシラン等が用いられる。
CF3(CF2)5(CH2)2OH〔FA-6〕250mg(0.69ミリモル)を30mlのメタノール中に加えて溶解させ、その溶液中にアナターゼ型酸化チタン250mgおよびシリカゾル(日産化学製品メタノールシリカゾル;30重量%ナノシリカ含有、平均粒子径11nm)834mg(ナノシリカとして250mg)およびテトラエトキシシラン(東京化成製品;密度0.93g/ml)0.25ml(1.13ミリモル)を加え、マグネチックスターラで攪拌しながら、25重量%アンモニア水0.5mlを加え、5時間反応を行った。
実施例1において、FA-6の代りに、種々の含フッ素アルコールが同量(250mg)用いられた。
FA-8:CF3(CF2)7(CH2)2OH
DTFA:CF3(CF2)3CH2(CF2)5(CH2)2OH 〔CF3(CF2)3(CH2CF2)(CF2CF2)2(CH2CH2)OH)〕
PO-6-OH:HOCH2CF(CF3)〔OCF2CF(CF3)〕nOCF2CF2O〔CF(CF3)CF2O〕mCF(CF3)CH2OH
(n+m=6)
PO-9M-OH:HOCH2CF(CF3)〔OCF2CF(CF3)〕nOCF2CF2O〔CF(CF3)CF2O〕mCF(CF3)CH2OH
(n+m=9)
(判定基準) ◎:アナターゼ型酸化チタンに対して性能が向上
○:アナターゼ型酸化チタンに対してどちらか一方の
性能が向上
△:アナターゼ型酸化チタンに対して同等の性能
×:アナターゼ型酸化チタンに対して性能が低下
表2
焼成前 焼成後
例 分解率(%) 判定 分解率(%) 判定
実施例1 82 ○ 42 ◎
参考例1 82 ◎ 69 ◎
実施例3 86 ◎ 57 ◎
〃 5 80 ◎ 75 ◎
〃 7 71 △ 79 ◎
なお、アナターゼ型酸化チタンの分解率は、焼成前71%、焼成後10%であり、アナターゼ型酸化チタン/ホウ酸(重量比1:0.94)の分解率は、焼成前82%、焼成後31%であった。
Claims (15)
- 一般式
RF-A-OH 〔I〕
(ここで、RFは炭素数6以下のパーフルオロアルキル基であり、またはパーフルオロアルキル基のフッ素原子の一部が水素原子で置換され、炭素数6以下の末端パーフルオロアルキル基および炭素数6以下のパーフルオロアルキレン基を含んで構成されるポリフルオロアルキル基であり、Aは炭素数1~6のアルキレン基である)で表される含フッ素アルコールとアルコキシシランおよび酸化チタンとナノシリカ粒子の縮合体からなる含フッ素酸化チタン-ナノシリカコンポジット粒子。 - 一般式〔I〕で表される含フッ素アルコールとして、一般式
CnF2n+1(CH2)jOH 〔II〕
(ここで、nは1~10、jは1~6の整数である)で表されるポリフルオロアルキルアルコールが用いられた請求項1記載の含フッ素酸化チタン-ナノシリカコンポジット粒子。 - 一般式〔I〕で表される含フッ素アルコールとして、一般式
CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOH 〔III〕
(ここで、nは1~6、aは1~4、bは0~2、cは1~3の整数である)で表されるポリフルオロアルキルアルコールが用いられた請求項1記載の含フッ素酸化チタン-ナノシリカコンポジット粒子。 - アルコキシシランが、一般式
(R1O)pSi(OR2)q(R3)r 〔IV〕
(ここで、R1、R3はそれぞれ水素原子、炭素数1~6のアルキル基またはアリール基であり、R2は炭素数1~6のアルキル基またはアリール基であり、ただしR1、R2、R3は共にアリール基であることはなく、p+q+rは4であり、ただしqは0ではない)で表わされるシラン誘導体である請求項1記載の含フッ素酸化チタン-ナノシリカコンポジット粒子。 - 酸化チタン100重量部に対し、ナノシリカ粒子が10~200重量部、含フッ素アルコールが10~200重量部、アルコキシシランが10~200重量部の割合で用いられた請求項1記載の含フッ素酸化チタン-ナノシリカコンポジット粒子。
- 酸化チタン100重量部に対し、ナノシリカ粒子が50~150重量部、含フッ素アルコールが50~150重量部、アルコキシシランが50~150重量部の割合で用いられた請求項1記載の含フッ素酸化チタン-ナノシリカコンポジット粒子。
- 請求項1記載の含フッ素アルコール〔I〕とアルコキシシランとを、酸化チタンおよびナノシリカ粒子の存在下で、アルカリ性または酸性触媒を用いて縮合反応させることを特徴とする含フッ素酸化チタン-ナノシリカコンポジット粒子の製造法。
- 一般式
RF′-A-OH 〔Ia〕
または一般式
HO-A-RF′′-A-OH 〔Ib〕
(ここで、RF′は炭素数6以下の末端パーフルオロアルキル基および炭素数6以下のパーフルオロアルキレン基を有する、O、SまたはN原子を含有する直鎖状または分岐状パーフルオロアルキル基であり、RF′′は炭素数6以下のパーフルオロアルキレン基を有する、O、SまたはN原子を含有する直鎖状または分岐状のパーフルオロアルキレン基であり、Aは炭素数1~6のアルキレン基である)で表される含フッ素アルコールとアルコキシシランおよび酸化チタンとナノシリカ粒子の縮合体からなる含フッ素酸化チタン-ナノシリカコンポジット粒子。 - 一般式〔Ia〕で表される含フッ素アルコールとして、一般式
CmF2m+1O〔CF(CF3)CF2O〕dCF(CF3)(CH2)eOH 〔IIa〕
(ここで、mは1~3、dは0~100、eは1~3の整数である)で表されるヘキサフルオロプロペンオキシドオリゴマーアルコールが用いられた請求項8記載の含フッ素酸化チタン-ナノシリカコンポジット粒子。 - 一般式〔Ib〕で表される含フッ素アルコールとして、一般式
HO(CH2)fCF(CF3)〔OCF2CF(CF3)〕gO(CF2)hO〔CF(CF3)CF2O〕i
CF(CF3)(CH2)fOH 〔IIb〕
(ここで、fは1~3、g+iは0~50、hは1~6の整数である)で表されるパーフルオロアルキレンエーテルジオールが用いられた請求項8記載の含フッ素酸化チタン-ナノシリカコンポジット粒子。 - アルコキシシランが、一般式
(R1O)pSi(OR2)q(R3)r 〔IV〕
(ここで、R1、R3はそれぞれ水素原子、炭素数1~6のアルキル基またはアリール基であり、R2は炭素数1~6のアルキル基またはアリール基であり、ただしR1、R2、R3は共にアリール基であることはなく、p+q+rは4であり、ただしqは0ではない)で表わされるシラン誘導体である請求項8記載の含フッ素酸化チタン-ナノシリカコンポジット粒子。 - 酸化チタン100重量部に対し、ナノシリカ粒子が10~200重量部、含フッ素アルコールが10~200重量部、アルコキシシランが10~200重量部の割合で用いられた請求項8記載の含フッ素酸化チタン-ナノシリカコンポジット粒子。
- 酸化チタン100重量部に対し、ナノシリカ粒子が50~150重量部、含フッ素アルコールが50~150重量部、アルコキシシランが50~150重量部の割合で用いられた請求項8記載の含フッ素酸化チタン-ナノシリカコンポジット粒子。
- 請求項8記載の含フッ素アルコール〔Ia〕または〔Ib〕とアルコキシシランとを、酸化チタンおよびナノシリカ粒子の存在下で、アルカリ性または酸性触媒を用いて縮合反応させることを特徴とする含フッ素酸化チタン-ナノシリカコンポジット粒子の製造法。
- 請求項1または8記載の含フッ素酸化チタン-ナノシリカコンポジット粒子を有効成分とする表面処理剤。
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JP2020185530A (ja) * | 2019-05-14 | 2020-11-19 | 三菱重工業株式会社 | 水素燃焼触媒 |
WO2021171745A1 (ja) * | 2020-02-27 | 2021-09-02 | ユニマテック株式会社 | 含フッ素アルコールコンポジット |
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CN111330543B (zh) * | 2020-03-17 | 2022-03-01 | 福建龙净环保股份有限公司 | 一种用于处理高湿度VOCs的疏水活性炭吸附剂及其制备方法 |
KR20220126158A (ko) | 2021-03-08 | 2022-09-15 | 삼성전자주식회사 | 공기정화용 광촉매, 이를 포함하는 세라믹 촉매필터 및 공기정화장치 |
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