JP7293583B2 - エアロゲルブロック - Google Patents
エアロゲルブロック Download PDFInfo
- Publication number
- JP7293583B2 JP7293583B2 JP2018131437A JP2018131437A JP7293583B2 JP 7293583 B2 JP7293583 B2 JP 7293583B2 JP 2018131437 A JP2018131437 A JP 2018131437A JP 2018131437 A JP2018131437 A JP 2018131437A JP 7293583 B2 JP7293583 B2 JP 7293583B2
- Authority
- JP
- Japan
- Prior art keywords
- silicon
- airgel
- silane oligomer
- atom
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 74
- 229910000077 silane Inorganic materials 0.000 claims description 74
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 65
- 239000011240 wet gel Substances 0.000 claims description 56
- 150000003377 silicon compounds Chemical class 0.000 claims description 52
- 125000000524 functional group Chemical group 0.000 claims description 50
- 229910052710 silicon Inorganic materials 0.000 claims description 40
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 26
- 125000000962 organic group Chemical group 0.000 claims description 22
- 239000010703 silicon Substances 0.000 claims description 22
- 238000006460 hydrolysis reaction Methods 0.000 claims description 21
- 230000007062 hydrolysis Effects 0.000 claims description 18
- 238000002834 transmittance Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- 125000004429 atom Chemical group 0.000 claims description 6
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 claims description 4
- 238000007088 Archimedes method Methods 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 239000002904 solvent Substances 0.000 description 61
- 238000001035 drying Methods 0.000 description 40
- 239000000178 monomer Substances 0.000 description 36
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 27
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 26
- -1 polysiloxane Polymers 0.000 description 25
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 21
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 20
- 238000001879 gelation Methods 0.000 description 20
- 238000005259 measurement Methods 0.000 description 20
- 238000005406 washing Methods 0.000 description 19
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 18
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 18
- 230000032683 aging Effects 0.000 description 18
- 150000001875 compounds Chemical class 0.000 description 18
- 239000003960 organic solvent Substances 0.000 description 16
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 12
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 12
- 239000000523 sample Substances 0.000 description 12
- 239000000377 silicon dioxide Substances 0.000 description 12
- 239000004964 aerogel Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000004094 surface-active agent Substances 0.000 description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 239000003054 catalyst Substances 0.000 description 10
- 238000000352 supercritical drying Methods 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 9
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 9
- 239000000499 gel Substances 0.000 description 9
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 8
- 238000005452 bending Methods 0.000 description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 7
- 125000000217 alkyl group Chemical group 0.000 description 7
- AFABGHUZZDYHJO-UHFFFAOYSA-N 2-Methylpentane Chemical compound CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 6
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 5
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 5
- 239000003377 acid catalyst Substances 0.000 description 5
- 239000001569 carbon dioxide Substances 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 5
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 5
- 230000035882 stress Effects 0.000 description 5
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 description 5
- GXDHCNNESPLIKD-UHFFFAOYSA-N 2-methylhexane Chemical compound CCCCC(C)C GXDHCNNESPLIKD-UHFFFAOYSA-N 0.000 description 4
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 4
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 description 4
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical group CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 description 4
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- 229920001451 polypropylene glycol Polymers 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 4
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 4
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 description 3
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 description 3
- 238000005481 NMR spectroscopy Methods 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 235000011054 acetic acid Nutrition 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 125000003545 alkoxy group Chemical group 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 229960003237 betaine Drugs 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 description 3
- 239000004202 carbamide Substances 0.000 description 3
- 150000001721 carbon Chemical group 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- UAOMVDZJSHZZME-UHFFFAOYSA-N diisopropylamine Chemical compound CC(C)NC(C)C UAOMVDZJSHZZME-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 125000003700 epoxy group Chemical group 0.000 description 3
- 235000019253 formic acid Nutrition 0.000 description 3
- 238000004108 freeze drying Methods 0.000 description 3
- 150000002430 hydrocarbons Chemical group 0.000 description 3
- 230000003301 hydrolyzing effect Effects 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- ZJBHFQKJEBGFNL-UHFFFAOYSA-N methylsilanetriol Chemical compound C[Si](O)(O)O ZJBHFQKJEBGFNL-UHFFFAOYSA-N 0.000 description 3
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000013500 performance material Substances 0.000 description 3
- 238000013001 point bending Methods 0.000 description 3
- HNAGHMKIPMKKBB-UHFFFAOYSA-N 1-benzylpyrrolidine-3-carboxamide Chemical compound C1C(C(=O)N)CCN1CC1=CC=CC=C1 HNAGHMKIPMKKBB-UHFFFAOYSA-N 0.000 description 2
- PZHIWRCQKBBTOW-UHFFFAOYSA-N 1-ethoxybutane Chemical compound CCCCOCC PZHIWRCQKBBTOW-UHFFFAOYSA-N 0.000 description 2
- HCFAJYNVAYBARA-UHFFFAOYSA-N 4-heptanone Chemical compound CCCC(=O)CCC HCFAJYNVAYBARA-UHFFFAOYSA-N 0.000 description 2
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 2
- VVJKKWFAADXIJK-UHFFFAOYSA-N Allylamine Chemical compound NCC=C VVJKKWFAADXIJK-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 2
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 2
- ATHHXGZTWNVVOU-UHFFFAOYSA-N N-methylformamide Chemical compound CNC=O ATHHXGZTWNVVOU-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 2
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 150000005215 alkyl ethers Chemical class 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 239000001099 ammonium carbonate Substances 0.000 description 2
- 239000002280 amphoteric surfactant Substances 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- OBNCKNCVKJNDBV-UHFFFAOYSA-N butanoic acid ethyl ester Natural products CCCC(=O)OCC OBNCKNCVKJNDBV-UHFFFAOYSA-N 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 239000003093 cationic surfactant Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- IJKVHSBPTUYDLN-UHFFFAOYSA-N dihydroxy(oxo)silane Chemical compound O[Si](O)=O IJKVHSBPTUYDLN-UHFFFAOYSA-N 0.000 description 2
- POLCUAVZOMRGSN-UHFFFAOYSA-N dipropyl ether Chemical compound CCCOCCC POLCUAVZOMRGSN-UHFFFAOYSA-N 0.000 description 2
- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 238000005227 gel permeation chromatography Methods 0.000 description 2
- 150000008282 halocarbons Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 2
- 239000002563 ionic surfactant Substances 0.000 description 2
- GJRQTCIYDGXPES-UHFFFAOYSA-N iso-butyl acetate Natural products CC(C)COC(C)=O GJRQTCIYDGXPES-UHFFFAOYSA-N 0.000 description 2
- FGKJLKRYENPLQH-UHFFFAOYSA-M isocaproate Chemical compound CC(C)CCC([O-])=O FGKJLKRYENPLQH-UHFFFAOYSA-M 0.000 description 2
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 description 2
- 229940011051 isopropyl acetate Drugs 0.000 description 2
- ULYZAYCEDJDHCC-UHFFFAOYSA-N isopropyl chloride Chemical compound CC(C)Cl ULYZAYCEDJDHCC-UHFFFAOYSA-N 0.000 description 2
- GWYFCOCPABKNJV-UHFFFAOYSA-N isovaleric acid Chemical compound CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 description 2
- OQAGVSWESNCJJT-UHFFFAOYSA-N isovaleric acid methyl ester Natural products COC(=O)CC(C)C OQAGVSWESNCJJT-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 2
- SNMVRZFUUCLYTO-UHFFFAOYSA-N n-propyl chloride Chemical compound CCCCl SNMVRZFUUCLYTO-UHFFFAOYSA-N 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 2
- 235000006408 oxalic acid Nutrition 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 235000019260 propionic acid Nutrition 0.000 description 2
- 229940090181 propyl acetate Drugs 0.000 description 2
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 2
- 238000010183 spectrum analysis Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004154 testing of material Methods 0.000 description 2
- 125000005207 tetraalkylammonium group Chemical group 0.000 description 2
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 2
- 125000003396 thiol group Chemical group [H]S* 0.000 description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical class [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 2
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
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- OIIWPAYIXDCDNL-UHFFFAOYSA-M sodium 3-(trimethylsilyl)propionate Chemical compound [Na+].C[Si](C)(C)CCC([O-])=O OIIWPAYIXDCDNL-UHFFFAOYSA-M 0.000 description 1
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- 238000001228 spectrum Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- YBRBMKDOPFTVDT-UHFFFAOYSA-N tert-butylamine Chemical compound CC(C)(C)N YBRBMKDOPFTVDT-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- CBXCPBUEXACCNR-UHFFFAOYSA-N tetraethylammonium Chemical compound CC[N+](CC)(CC)CC CBXCPBUEXACCNR-UHFFFAOYSA-N 0.000 description 1
- 229940073455 tetraethylammonium hydroxide Drugs 0.000 description 1
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000009283 thermal hydrolysis Methods 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- VPYJNCGUESNPMV-UHFFFAOYSA-N triallylamine Chemical compound C=CCN(CC=C)CC=C VPYJNCGUESNPMV-UHFFFAOYSA-N 0.000 description 1
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 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
- ADGSJBYMQJVZIJ-UHFFFAOYSA-N trihydroxy(3,3,3-trifluoropropyl)silane Chemical compound O[Si](O)(O)CCC(F)(F)F ADGSJBYMQJVZIJ-UHFFFAOYSA-N 0.000 description 1
- FCVNATXRSJMIDT-UHFFFAOYSA-N trihydroxy(phenyl)silane Chemical compound O[Si](O)(O)C1=CC=CC=C1 FCVNATXRSJMIDT-UHFFFAOYSA-N 0.000 description 1
- VYAMDNCPNLFEFT-UHFFFAOYSA-N trihydroxy(propyl)silane Chemical compound CCC[Si](O)(O)O VYAMDNCPNLFEFT-UHFFFAOYSA-N 0.000 description 1
- QTSIIQWGUWMBTD-UHFFFAOYSA-N trihydroxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound O[Si](O)(O)CCCOCC1CO1 QTSIIQWGUWMBTD-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
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
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Description
Q:1個のケイ素原子に結合した酸素原子が4個の含ケイ素結合単位。
T:1個のケイ素原子に結合した酸素原子が3個と水素原子又は1価の有機基が1個の含ケイ素結合単位。ただし、有機基とはケイ素原子に結合する原子が炭素原子である1価の有機基である。
狭義には、湿潤ゲルに対して超臨界乾燥法を用いて得られた乾燥ゲルをエアロゲル、大気圧下での乾燥により得られた乾燥ゲルをキセロゲル、凍結乾燥により得られた乾燥ゲルをクライオゲルと称するが、本実施形態においては、湿潤ゲルのこれらの乾燥手法によらず、得られた低密度の乾燥ゲルを「エアロゲル」と称する。すなわち、本実施形態において、「エアロゲル」とは、広義のエアロゲルである「Gel comprised of a microporous solid in which the dispersed phase is a gas(分散相が気体である微多孔性固体から構成されるゲル)」を意味する。一般的に、エアロゲルの内部は、網目状の微細構造を有しており、2~20nm程度の粒子状のエアロゲル成分が結合したクラスター構造を有している。このクラスターにより形成される骨格間には、100nmに満たない細孔がある。これにより、エアロゲルは、三次元的に微細な多孔性の構造が形成されている。なお、本実施形態に係るエアロゲルは、例えば、シリカを主成分とするシリカエアロゲルである。シリカエアロゲルとしては、例えば、有機基(メチル基等)又は有機鎖を導入した、いわゆる有機-無機ハイブリッド化されたシリカエアロゲルが挙げられる。
ゾル生成工程は、加水分解性の官能基を有するケイ素化合物、当該ケイ素化合物を加水分解してなる加水分解生成物、及び縮合性の官能基を有するケイ素化合物、からなる群より選択される少なくとも一種を含むゾル、を生成する工程である。本工程において、ケイ素化合物が加水分解性の官能基を有する場合、当該官能基の全てが加水分解されていてもよいし、部分的に加水分解されていてもよい。すなわち、加水分解性の官能基を有するケイ素化合物とその加水分解生成物とは混在していてもよい。
湿潤ゲル生成工程は、ゾル生成工程で得られたゾルをゲル化して、湿潤ゲルを得る工程である。ケイ素化合物が加水分解性の官能基を有する場合は、ケイ素化合物の加水分解生成物を得つつゾルをゲル化する、あるいはケイ素化合物の加水分解生成物を含むゾルをゲル化することで、湿潤ゲルを得る。本工程は、ゾルをゲル化し、その後熟成して湿潤ゲルを得る工程であってもよい。本工程では、加水分解反応及びゲル化を促進させるため塩基触媒を用いることができる。
洗浄工程は、湿潤ゲル生成工程で得られた湿潤ゲルを洗浄する工程である。洗浄工程では、湿潤ゲル中の洗浄液を乾燥条件(後述の乾燥工程)に適した溶媒に置換する溶媒置換を更に行ってもよい。
乾燥工程では、洗浄工程を経た湿潤ゲルを乾燥させることにより、エアロゲルを得ることができる。すなわち、上記ゾルから生成された湿潤ゲルを乾燥してなるエアロゲルを得ることができる。
本実施形態に係るエアロゲルブロックは、加水分解性の官能基又は縮合性の官能基を有するケイ素化合物、及び、加水分解性の官能基を有するケイ素化合物の加水分解生成物の少なくとも一種、を含有するゾルの縮合物である湿潤ゲルの乾燥物ということができる。この際ケイ素化合物は、前述のとおり、加水分解性の官能基又は縮合性の官能基が3個結合したケイ素原子を有するシランモノマー、及びケイ素原子の総数に対し3個の酸素原子と結合したケイ素原子を50%以上有するシランオリゴマーの少なくとも一種と、加水分解性の官能基又は縮合性の官能基が4個結合したケイ素原子を有するシランモノマー、及びケイ素原子の総数に対し4個の酸素原子と結合したケイ素原子を50%以上有するシランオリゴマーの少なくとも一種と、を主として含むことができる。
Q:1個のケイ素原子に結合した酸素原子が4個の含ケイ素結合単位。
T:1個のケイ素原子に結合した酸素原子が3個と水素原子又は1価の有機基が1個の含ケイ素結合単位。ただし、有機基とはケイ素原子に結合する原子が炭素原子である1価の有機基である。
D:1個のケイ素原子に結合した酸素原子が2個と水素原子又は1価の有機基が2個の含ケイ素結合単位。
4官能シランオリゴマーとしてメチルシリケート53A(コルコート株式会社製、製品名)を1.6mL、3官能シランオリゴマーとしてXR31-B1410(モメンティブ・パフォーマンス・マテリアルズ・ジャパン合同会社製、製品名)を1.6mL、N,N-ジメチルホルムアミドを14mL混合し、10分間撹拌した後、0.75Mに調整した水酸化テトラエチルアンモニウム水溶液0.6mLを加え、さらに1分間攪拌してゾルを得た。得られたゾルを80℃でゲル化し、72時間熟成して湿潤ゲルを得た(表中のエージング条件)。
エアロゲルブロックの作製条件を表1に示すように変更したこと以外は、実施例1と同様にしてエアロゲルブロックを得た。なお、表1中、KBM-13(信越化学工業株式会社製、製品名)はメチルトリメトキシシランであり、0.75M NaOHaq.は0.75Mに調整した水酸化ナトリウム水溶液である。
{1-(エアロゲルの体積/ゾルの体積)}×100
各実施例及び各比較例で得られたエアロゲルブロックについて、以下の条件に従って評価をした。結果を表2に示す。
固体29Si-NMR装置として「FT-NMR AV400WB」(ブルカー・バイオスピン株式会社製、製品名)を用いて測定を行った。測定条件は、測定モード:DD/MAS法、プローブ:4mmφのCPMASプローブ、磁場:9.4T、共鳴周波数:79Hz、MAS回転数:6kHz、遅延時間:150秒とした。標準試料としては、3-トリメチルシリルプロピオン酸ナトリウムを用いた。
エアロゲルブロックを20mm×25mm×10mmのサイズとなるようにカットした。面の平行を確保するために、必要に応じて#1500以上の紙やすりで整形した。整形したエアロゲルブロックを、定温乾燥機「DVS402」(ヤマト科学株式会社製、製品名)を用いて、大気圧下、100℃で30分間乾燥した後、デシケータ中に移し、25℃まで冷却して、可視光透過率測定用の測定サンプルを得た。測定装置としては、ダブルビーム分光光度計「U-2900」(株式会社日立ハイテクノロジーズ製、商品名)を用い、20mm×25mmの面に波長550nmの光を当てて、光が10mmの距離(光路長)を透過するときの透過率(平行光線透過率)を測定した。
エアロゲルブロックの密度を、JIS K7112に記載の方法に準じてアルキメデス法により測定した。測定装置としては、電子比重計SD-200L(アルファーミラージュ株式会社製、製品名)を用いた。
カットサイズを150mm×150mm×10mmとしたこと以外は、可視光透過率の測定と同様にして測定サンプルを作製した。これを3点曲げ測定用の測定サンプルとした。
測定装置としては、テンシロン万能材料試験機(引張・圧縮試験機)「RTC―1350A」(株式会社オリエンテック製、製品名)を用いた。測定モードは3点曲げとし、支点間距離を20mmとした。支点間の中央に、サンプル上面から荷重を加え、測定サンプルが破壊した点(破断点)で終了した。荷重を加える時の治具の移動速度は、0.3mm/minとし、測定温度は25℃とした。ここで、ひずみεは次式より求めた。
ε=6×s×h/L2
式中、sは破断点での変位(mm)、hは負荷をかける前の測定サンプルの厚み(mm)、Lは支点間距離(mm)を示す。
また、破断曲げ応力σ(MPa)は、次式より求めた。
σ=3×F×L/2×b×h2
式中、Fは破断点での荷重(N)を示し、bは負荷をかける前の測定サンプルの幅(mm)を示す。
そして、縦軸を応力、横軸をひずみで表した応力-ひずみ曲線において、破断点までの曲線の下側の面積を算出することにより、単位体積当りの曲げ破断エネルギー(mJ/cm3)を求めた。
Claims (3)
- DD/MAS法を用いて測定された固体29Si-NMRスペクトルにおいて、含ケイ素結合単位Q及びTを以下のとおり規定したとき、Qに由来するシグナル面積に対するTに由来するシグナル面積の比T/Qが1/9~9/1であり、
光路長10mmにおける可視光透過率が50%以上であり、
加水分解性の官能基又は縮合性の官能基を有するケイ素化合物、及び、加水分解性の官能基を有するケイ素化合物の加水分解生成物の少なくとも一種、を含有するゾルの縮合物である湿潤ゲルの乾燥物であり、
前記ケイ素化合物が、ケイ素原子の総数に対し3個の酸素原子と結合したケイ素原子を60%以上有するシランオリゴマー(3官能シランオリゴマー)と、ケイ素原子の総数に対し4個の酸素原子と結合したケイ素原子を60%以上有するシランオリゴマー(4官能シランオリゴマー)と、を主として含み、前記ケイ素化合物中の、前記3官能シランオリゴマー及び前記4官能シランオリゴマーの合計含有量が75質量%以上である、エアロゲルブロック。
Q:1個のケイ素原子に結合した酸素原子が4個の含ケイ素結合単位。
T:1個のケイ素原子に結合した酸素原子が3個と水素原子又は1価の有機基が1個の含ケイ素結合単位。ただし、前記有機基とはケイ素原子に結合する原子が炭素原子である1価の有機基である。 - アルキメデス法により測定される密度が0.5g/cm3以下である、請求項1に記載のエアロゲルブロック。
- 前記ケイ素化合物が、前記3官能シランオリゴマーと、前記4官能シランオリゴマーとからなる、請求項1又は2に記載のエアロゲルブロック。
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