JPWO2012026557A1 - シール材 - Google Patents
シール材 Download PDFInfo
- Publication number
- JPWO2012026557A1 JPWO2012026557A1 JP2012530724A JP2012530724A JPWO2012026557A1 JP WO2012026557 A1 JPWO2012026557 A1 JP WO2012026557A1 JP 2012530724 A JP2012530724 A JP 2012530724A JP 2012530724 A JP2012530724 A JP 2012530724A JP WO2012026557 A1 JPWO2012026557 A1 JP WO2012026557A1
- Authority
- JP
- Japan
- Prior art keywords
- fluororubber
- crosslinking
- vdf
- sealing material
- 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.)
- Granted
Links
- 239000003566 sealing material Substances 0.000 title claims abstract description 60
- 238000004132 cross linking Methods 0.000 claims abstract description 162
- 229920001973 fluoroelastomer Polymers 0.000 claims abstract description 139
- 239000000203 mixture Substances 0.000 claims abstract description 50
- 238000012360 testing method Methods 0.000 claims abstract description 36
- 239000006229 carbon black Substances 0.000 claims abstract description 29
- 238000005259 measurement Methods 0.000 claims abstract description 20
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 64
- 229920001577 copolymer Polymers 0.000 claims description 62
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 62
- 229920001971 elastomer Polymers 0.000 claims description 52
- 239000005060 rubber Substances 0.000 claims description 51
- 239000003431 cross linking reagent Substances 0.000 claims description 43
- -1 perfluoro Chemical group 0.000 claims description 42
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 13
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 238000007906 compression Methods 0.000 abstract description 53
- 230000006835 compression Effects 0.000 abstract description 52
- 238000007789 sealing Methods 0.000 abstract description 5
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 109
- 239000000178 monomer Substances 0.000 description 60
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 42
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 40
- 150000001875 compounds Chemical class 0.000 description 36
- 229910052731 fluorine Inorganic materials 0.000 description 32
- 238000000034 method Methods 0.000 description 27
- 229920000728 polyester Polymers 0.000 description 26
- 239000011737 fluorine Substances 0.000 description 25
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 24
- 235000019241 carbon black Nutrition 0.000 description 24
- 238000004898 kneading Methods 0.000 description 24
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 23
- 125000004432 carbon atom Chemical group C* 0.000 description 22
- 239000003921 oil Substances 0.000 description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 18
- 239000001301 oxygen Substances 0.000 description 18
- 229910052760 oxygen Inorganic materials 0.000 description 18
- 238000012856 packing Methods 0.000 description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 16
- 125000001153 fluoro group Chemical group F* 0.000 description 16
- 230000000704 physical effect Effects 0.000 description 15
- 229920005862 polyol Polymers 0.000 description 15
- 150000003077 polyols Chemical class 0.000 description 15
- 229920005989 resin Polymers 0.000 description 15
- 239000011347 resin Substances 0.000 description 15
- ZCQWOFVYLHDMMC-UHFFFAOYSA-N Oxazole Chemical compound C1=COC=N1 ZCQWOFVYLHDMMC-UHFFFAOYSA-N 0.000 description 14
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 14
- 229910052740 iodine Inorganic materials 0.000 description 14
- 239000000126 substance Substances 0.000 description 14
- 239000002253 acid Substances 0.000 description 13
- 150000002978 peroxides Chemical class 0.000 description 13
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 12
- 229910021529 ammonia Inorganic materials 0.000 description 12
- 239000000446 fuel Substances 0.000 description 12
- 150000003863 ammonium salts Chemical class 0.000 description 11
- 125000004093 cyano group Chemical group *C#N 0.000 description 11
- 239000002245 particle Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 10
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 9
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 9
- 239000000370 acceptor Substances 0.000 description 9
- 238000013329 compounding Methods 0.000 description 9
- 150000004767 nitrides Chemical class 0.000 description 9
- 229920000768 polyamine Polymers 0.000 description 9
- BLTXWCKMNMYXEA-UHFFFAOYSA-N 1,1,2-trifluoro-2-(trifluoromethoxy)ethene Chemical compound FC(F)=C(F)OC(F)(F)F BLTXWCKMNMYXEA-UHFFFAOYSA-N 0.000 description 8
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 8
- 239000011630 iodine Substances 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 7
- 239000005977 Ethylene Substances 0.000 description 7
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 7
- ZFVMWEVVKGLCIJ-UHFFFAOYSA-N bisphenol AF Chemical compound C1=CC(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C=C1 ZFVMWEVVKGLCIJ-UHFFFAOYSA-N 0.000 description 7
- 229910052794 bromium Inorganic materials 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- 238000006116 polymerization reaction Methods 0.000 description 7
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 7
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 6
- 125000004453 alkoxycarbonyl group Chemical group 0.000 description 6
- 125000000217 alkyl group Chemical group 0.000 description 6
- 125000002947 alkylene group Chemical group 0.000 description 6
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 6
- 239000006234 thermal black Substances 0.000 description 6
- KHXKESCWFMPTFT-UHFFFAOYSA-N 1,1,1,2,2,3,3-heptafluoro-3-(1,2,2-trifluoroethenoxy)propane Chemical compound FC(F)=C(F)OC(F)(F)C(F)(F)C(F)(F)F KHXKESCWFMPTFT-UHFFFAOYSA-N 0.000 description 5
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 5
- 239000000395 magnesium oxide Substances 0.000 description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 5
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 5
- 125000005010 perfluoroalkyl group Chemical group 0.000 description 5
- 150000004714 phosphonium salts Chemical class 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 5
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 4
- CPFKVVLZVUUQGV-UHFFFAOYSA-N 4-[2-(3,4-diaminophenyl)-1,1,1,3,3,3-hexafluoropropan-2-yl]benzene-1,2-diamine Chemical compound C1=C(N)C(N)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(N)C(N)=C1 CPFKVVLZVUUQGV-UHFFFAOYSA-N 0.000 description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical class OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical class C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- 150000001491 aromatic compounds Chemical class 0.000 description 4
- USFRYJRPHFMVBZ-UHFFFAOYSA-M benzyl(triphenyl)phosphanium;chloride Chemical compound [Cl-].C=1C=CC=CC=1[P+](C=1C=CC=CC=1)(C=1C=CC=CC=1)CC1=CC=CC=C1 USFRYJRPHFMVBZ-UHFFFAOYSA-M 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 4
- 239000000920 calcium hydroxide Substances 0.000 description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- 125000003709 fluoroalkyl group Chemical group 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- 125000004430 oxygen atom Chemical group O* 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 150000003505 terpenes Chemical class 0.000 description 4
- 235000007586 terpenes Nutrition 0.000 description 4
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 4
- 239000011787 zinc oxide Substances 0.000 description 4
- 235000014692 zinc oxide Nutrition 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000004202 carbamide Substances 0.000 description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000007334 copolymerization reaction Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229960001545 hydrotalcite Drugs 0.000 description 3
- 229910001701 hydrotalcite Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 229910000000 metal hydroxide Inorganic materials 0.000 description 3
- 150000004692 metal hydroxides Chemical class 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 150000003141 primary amines Chemical class 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 238000013191 viscoelastic testing Methods 0.000 description 3
- GRWFGVWFFZKLTI-IUCAKERBSA-N (-)-α-pinene Chemical compound CC1=CC[C@@H]2C(C)(C)[C@H]1C2 GRWFGVWFFZKLTI-IUCAKERBSA-N 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 2
- WUMVZXWBOFOYAW-UHFFFAOYSA-N 1,2,3,3,4,4,4-heptafluoro-1-(1,2,3,3,4,4,4-heptafluorobut-1-enoxy)but-1-ene Chemical compound FC(F)(F)C(F)(F)C(F)=C(F)OC(F)=C(F)C(F)(F)C(F)(F)F WUMVZXWBOFOYAW-UHFFFAOYSA-N 0.000 description 2
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 description 2
- HIXDQWDOVZUNNA-UHFFFAOYSA-N 2-(3,4-dimethoxyphenyl)-5-hydroxy-7-methoxychromen-4-one Chemical compound C=1C(OC)=CC(O)=C(C(C=2)=O)C=1OC=2C1=CC=C(OC)C(OC)=C1 HIXDQWDOVZUNNA-UHFFFAOYSA-N 0.000 description 2
- MSTZGVRUOMBULC-UHFFFAOYSA-N 2-amino-4-[2-(3-amino-4-hydroxyphenyl)-1,1,1,3,3,3-hexafluoropropan-2-yl]phenol Chemical compound C1=C(O)C(N)=CC(C(C=2C=C(N)C(O)=CC=2)(C(F)(F)F)C(F)(F)F)=C1 MSTZGVRUOMBULC-UHFFFAOYSA-N 0.000 description 2
- UGJCILYXGIEERK-UHFFFAOYSA-N 2-tert-butylperoxy-1,3-di(propan-2-yl)benzene Chemical compound CC(C)C1=CC=CC(C(C)C)=C1OOC(C)(C)C UGJCILYXGIEERK-UHFFFAOYSA-N 0.000 description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 2
- QMIWYOZFFSLIAK-UHFFFAOYSA-N 3,3,3-trifluoro-2-(trifluoromethyl)prop-1-ene Chemical compound FC(F)(F)C(=C)C(F)(F)F QMIWYOZFFSLIAK-UHFFFAOYSA-N 0.000 description 2
- PDFSXHZXNZCKNF-UHFFFAOYSA-N 3,3,4,4,5,5,6,6,7,7,8,8-dodecafluorodeca-1,9-diene Chemical compound C=CC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C=C PDFSXHZXNZCKNF-UHFFFAOYSA-N 0.000 description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 239000004254 Ammonium phosphate Substances 0.000 description 2
- HTVITOHKHWFJKO-UHFFFAOYSA-N Bisphenol B Chemical compound C=1C=C(O)C=CC=1C(C)(CC)C1=CC=C(O)C=C1 HTVITOHKHWFJKO-UHFFFAOYSA-N 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical class OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- 239000006057 Non-nutritive feed additive Substances 0.000 description 2
- 239000005642 Oleic acid Substances 0.000 description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 229910000147 aluminium phosphate Chemical class 0.000 description 2
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 2
- 235000019289 ammonium phosphates Nutrition 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- PPQREHKVAOVYBT-UHFFFAOYSA-H dialuminum;tricarbonate Chemical compound [Al+3].[Al+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O PPQREHKVAOVYBT-UHFFFAOYSA-H 0.000 description 2
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
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- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
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- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
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- XBXCNNQPRYLIDE-UHFFFAOYSA-N tert-butylcarbamic acid Chemical compound CC(C)(C)NC(O)=O XBXCNNQPRYLIDE-UHFFFAOYSA-N 0.000 description 1
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- IBWGNZVCJVLSHB-UHFFFAOYSA-M tetrabutylphosphanium;chloride Chemical compound [Cl-].CCCC[P+](CCCC)(CCCC)CCCC IBWGNZVCJVLSHB-UHFFFAOYSA-M 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- XLAIWHIOIFKLEO-OWOJBTEDSA-N trans-stilbene-4,4'-diol Chemical compound C1=CC(O)=CC=C1\C=C\C1=CC=C(O)C=C1 XLAIWHIOIFKLEO-OWOJBTEDSA-N 0.000 description 1
- KSMYREBPTSSZDR-UHFFFAOYSA-M tributyl(prop-2-enyl)phosphanium;chloride Chemical compound [Cl-].CCCC[P+](CCCC)(CCCC)CC=C KSMYREBPTSSZDR-UHFFFAOYSA-M 0.000 description 1
- GRPURDFRFHUDSP-UHFFFAOYSA-N tris(prop-2-enyl) benzene-1,2,4-tricarboxylate Chemical compound C=CCOC(=O)C1=CC=C(C(=O)OCC=C)C(C(=O)OCC=C)=C1 GRPURDFRFHUDSP-UHFFFAOYSA-N 0.000 description 1
- XHGIFBQQEGRTPB-UHFFFAOYSA-N tris(prop-2-enyl) phosphate Chemical compound C=CCOP(=O)(OCC=C)OCC=C XHGIFBQQEGRTPB-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
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- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
-
- 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
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0025—Crosslinking or vulcanising agents; including accelerators
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/16—Homopolymers or copolymers or vinylidene fluoride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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Abstract
Description
本願は、本明細書において全体にわたって参照として組み込まれた2010年8月25日出願の米国仮特許出願第61/377,034号の35U.S.C.§119(e)に基づく利益を請求する。
架橋フッ素ゴム層が、動的粘弾性試験(測定温度:160℃、引張歪み:1%、初期加重:157cN、周波数:10Hz)において、損失弾性率E”が、600kPa以上6000kPa以下であるシール材に関する。
CF2=CF−Rfa (1)
(式中、Rfaは−CF3又は−ORfb(Rfbは炭素数1〜5のパーフルオロアルキル基))で表されるパーフルオロエチレン性不飽和化合物(たとえばヘキサフルオロプロピレン(HFP)、パーフルオロ(アルキルビニルエーテル)(PAVE)など)よりなる群から選ばれる少なくとも1種の単量体に由来する構造単位を含むことが好ましい。
CH2=CFRf (2)
(式中、Rfは炭素数1〜12の直鎖又は分岐したフルオロアルキル基)で表される含フッ素単量体(2)などのフッ素含有単量体;エチレン(Et)、プロピレン(Pr)、アルキルビニルエーテル等のフッ素非含有単量体、架橋性基(キュアサイト)を与える単量体、並びに反応性乳化剤などがあげられ、これらの単量体や化合物のなかから1種又は2種以上を組み合わせて用いることができる。
(式中、Rfcは炭素数1〜6の直鎖又は分岐状パーフルオロアルキル基、炭素数5〜6の環式パーフルオロアルキル基、1〜3個の酸素原子を含む炭素数2〜6の直鎖又は分岐状パーフルオロオキシアルキル基である)で表されるパーフルオロビニルエーテルを用いてもよく、CF2=CFOCF2OCF3、CF2=CFOCF2OCF2CF3、又は、CF2=CFOCF2OCF2CF2OCF3 を用いることが好ましい。
一般式(3):
CY1 2=CY2Rf2X1 (3)
(式中、Y1、Y2はフッ素原子、水素原子又は−CH3;Rf2は1個以上のエーテル型酸素原子を有していてもよく、芳香環を有していてもよい、水素原子の一部又は全部がフッ素原子で置換された直鎖状又は分岐状の含フッ素アルキレン基;X1はヨウ素原子又は臭素原子)
で示される化合物が挙げられる。
CY1 2=CY2Rf3CHR1−X1 (4)
(式中、Y1、Y2、X1は前記同様であり、Rf3は1個以上のエーテル型酸素原子を有していてもよく水素原子の一部又は全部がフッ素原子で置換された直鎖状又は分岐状の含フッ素アルキレン基、すなわち水素原子の一部又は全部がフッ素原子で置換された直鎖状又は分岐状の含フッ素アルキレン基、水素原子の一部又は全部がフッ素原子で置換された直鎖状又は分岐状の含フッ素オキシアルキレン基、又は水素原子の一部又は全部がフッ素原子で置換された直鎖状又は分岐状の含フッ素ポリオキシアルキレン基;R1は水素原子又はメチル基)
で示されるヨウ素含有モノマー、臭素含有モノマー、一般式(5)〜(22):
CY4 2=CY4(CF2)n−X1 (5)
(式中、Y4は、同一又は異なり、水素原子又はフッ素原子、nは1〜8の整数)
CF2=CFCF2Rf4−X1 (6)
(式中、
CF2=CFCF2(OCF(CF3)CF2)m
(OCH2CF2CF2)nOCH2CF2−X1
(7)
(式中、mは0〜5の整数、nは0〜5の整数)
CF2=CFCF2(OCH2CF2CF2)m
(OCF(CF3)CF2)nOCF(CF3)−X1 (8)
(式中、mは0〜5の整数、nは0〜5の整数)
CF2=CF(OCF2CF(CF3))mO(CF2)n−X1 (9)
(式中、mは0〜5の整数、nは1〜8の整数)
CF2=CF(OCF2CF(CF3))m−X1 (10)
(式中、mは1〜5の整数)
CF2=CFOCF2(CF(CF3)OCF2)nCF(−X1)CF3
(11)
(式中、nは1〜4の整数)
CF2=CFO(CF2)nOCF(CF3)−X1 (12)
(式中、nは2〜5の整数)
CF2=CFO(CF2)n−(C6H4)−X1 (13)
(式中、nは1〜6の整数)
CF2=CF(OCF2CF(CF3))nOCF2CF(CF3)−X1
(14)
(式中、nは1〜2の整数)
CH2=CFCF2O(CF(CF3)CF2O)nCF(CF3)−X1
(15)
(式中、nは0〜5の整数)、
CF2=CFO(CF2CF(CF3)O)m(CF2)n−X1 (16)
(式中、mは0〜5の整数、nは1〜3の整数)
CH2=CFCF2OCF(CF3)OCF(CF3)−X1 (17)
CH2=CFCF2OCH2CF2−X1 (18)
CF2=CFO(CF2CF(CF3)O)mCF2CF(CF3)−X1
(19)
(式中、mは0以上の整数)
CF2=CFOCF(CF3)CF2O(CF2)n−X1 (20)
(式中、nは1以上の整数)
CF2=CFOCF2OCF2CF(CF3)OCF2−X1 (21)
CH2=CH−(CF2)nX1 (22)
(式中、nは2〜8の整数)
(一般式(5)〜(22)中、X1は前記と同様)
で表されるヨウ素含有モノマー、臭素含有モノマーなどがあげられ、これらをそれぞれ単独で、又は任意に組合わせて用いることができる。
で表されるヨウ素含有フッ素化ビニルエーテルが好ましくあげられ、より具体的には、
(式中、R2、R3、R4、R5、R6及びR7は同じか又は異なり、いずれもH、又は炭素数1〜5のアルキル基;Zは、直鎖若しくは分岐状の、酸素原子を含んでいてもよい、好ましくは少なくとも部分的にフッ素化された炭素数1〜18のアルキレン基若しくはシクロアルキレン基、又は(パー)フルオロポリオキシアルキレン基)で示されるビスオレフィン化合物も架橋性基を与える単量体として好ましい。なお、本明細書において、「(パー)フルオロポリオキシアルキレン基」とは、「フルオロポリオキシアルキレン基又はパーフルオロポリオキシアルキレン基」を意味する。
−(Q)p−CF2O−(CF2CF2O)m−(CF2O)n−CF2−(Q)p−
(式中、Qは炭素数1〜10のアルキレン基又は炭素数2〜10のオキシアルキレン基であり、pは0又は1であり、m及びnはm/n比が0.2〜5となり且つ該(パー)フルオロポリオキシアルキレン基の分子量が500〜10000、好ましくは1000〜4000の範囲となるような整数である。)で表される(パー)フルオロポリオキシアルキレン基であることが好ましい。この式において、Qは好ましくは、−CH2OCH2−及び−CH2O(CH2CH2O)sCH2−(s=1〜3)の中から選ばれる。
CH2=CH−(CF2)4−CH=CH2、
CH2=CH−(CF2)6−CH=CH2、
式:CH2=CH−Z1−CH=CH2
(式中、Z1は−CH2OCH2−CF2O−(CF2CF2O)m−(CF2O)n−CF2−CH2OCH2−(m/nは0.5))
などが挙げられる。
たとえば、MTカーボン、FTカーボンなどのサーマルブラックを単独で使用すると、上記範囲の損失弾性率E”を満足することが困難である。従って、サーマルブラックを使用する場合、サーマルブラックとサーマルブラック以外のカーボンブラックとを併用することが好ましい。
平均剪断速度(1/秒)=(π×D×R)/(60(秒)×c)
(式中、
D:ローター径又はロール径(cm)
R:回転速度(rpm)
c:チップクリアランス(cm。ローターとケーシングとの間隙の距離、又はロール同士の間隙の距離)
過酸化物架橋系により架橋する場合は、架橋点に炭素−炭素結合を有しているので、架橋点に炭素−酸素結合を有するポリオール架橋系及び炭素−窒素二重結合を有するポリアミン架橋系に比べて、耐薬品性及び耐スチーム性に優れているという特徴がある。
ポリオール架橋系により架橋する場合は、架橋点に炭素−酸素結合を有しており、圧縮永久歪みが小さく、成形性に優れているという特徴がある点で好適である。
ポリアミン架橋により架橋してなる場合は、架橋点に炭素−窒素二重結合を有しているものであり、動的機械特性に優れているという特徴がある。しかし、ポリオール架橋系又は過酸化物架橋系架橋剤を用いて架橋する場合に比べて、圧縮永久歪みが大きくなる傾向がある。
オキサゾール架橋系、チアゾール架橋系、イミダゾール架橋系は、圧縮永久歪みが小さく、耐熱性に優れた架橋系である。
式(24):
式(29):
アンモニア発生化合物(D1)は、架橋反応温度(40〜330℃)で発生したアンモニアが架橋を引き起こすことにより硬化を生じさせるとともに、架橋剤により硬化も促進する。また微量の水と反応して、アンモニアを発生させるものもある。
無機窒化物粒子(D2)としては、特に限定されるものではないが、窒化ケイ素(Si3N4)、窒化リチウム、窒化チタン、窒化アルミニウム、窒化ホウ素、窒化バナジウム、窒化ジルコニウムなどが挙げられる。これらの中でも、ナノサイズの微粒子が供給可能であることから、窒化ケイ素粒子であることが好ましい。また、これらの窒化物粒子は2種以上混合使用してもよい。
特定のVdF系ゴムは、VdFと、TFE、HFP及びフルオロ(ビニルエーテル)よりなる群から選ばれる少なくとも1種のフルオロオレフィンと、シアノ基、カルボキシル基又はアルコキシカルボニル基を含有する単量体との共重合体であるVdF系ゴムである。上記フルオロオレフィンは、パーフルオロオレフィンが好ましい。
CF2=CFO(CF2CFY2O)p−(CF2CF2CF2O)q−Rf5
(30)
(式中Y2は、フッ素原子又は−CF3を表し、Rf5は、炭素数1〜5のパーフルオロアルキル基を表す。pは、0〜5の整数を表し、qは、0〜5の整数を表す。)
又は、一般式(31):
CFX=CXOCF2OR (31)
(式中、XはF又はH;Rは炭素数1〜6の直鎖状若しくは分岐状のフルオロアルキル基、炭素数5〜6の環状のフルオロアルキル基、又はフルオロオキシアルキル基。ただし、H、Cl、Br、Iから選択される1〜2個の原子を含んでもよい)
で表されるものを1種又は2種以上を組み合わせて用いることができる。
CY1 2=CY1(CF2)n−X1 (32)
(式中、Y1は水素原子又はフッ素原子、nは1〜8の整数である)
CF2=CFCF2Rf6−X1 (33)
(式中、Rf6は−(OCF2)n−、−(OCF(CF3))n−
であり、nは0〜5の整数である)
CF2=CF(OCF2CF(CF3))mO(CF2)n−X1 (34)
(式中、mは0〜5の整数、nは1〜8の整数である)
CF2=CF(OCF2CF(CF3))m−X1 (35)
(式中、mは1〜5の整数)
(式(32)〜(35)中、X1は、シアノ基(−CN基)、カルボキシル基(−COOH基)、又はアルコキシカルボニル基(−COOR基、Rは炭素数1〜10のフッ素原子を含んでいてもよいアルキル基))で表される単量体などがあげられ、これらをそれぞれ単独で、又は任意に組み合わせて用いることができる。
特定の架橋性基を有するTFE/Pr系ゴムは、TFE単位40〜70モル%とPr単位30〜60モル%とシアノ基、カルボキシル基又はアルコキシカルボニル基を有する単量体単位を有する非パーフルオロゴムである。
トリアジン架橋系は、圧縮永久歪みが小さく、耐熱性に優れた架橋系である。トリアジン架橋系では、架橋反応を開始する架橋助剤(D)のみを用いる。
例えば、自動車エンジンの用途としては、耐熱性、耐酸化性、耐燃料性、低ガス透過性などが求められる、燃料系、排気系、ブレーキ系、駆動系、点火系などのダイヤフラムが挙げられる。
自動車エンジンの燃料系に用いられるダイヤフラムとしては、例えば燃料ポンプ用ダイヤフラム、キャブレター用ダイヤフラム、プレッシャレギュレータ用ダイヤフラム、パルセーションダンパー用ダイヤフラム、ORVR用ダイヤフラム、キャニスター用ダイヤフラム、オートフューエルコック用ダイヤフラムなどが挙げられる。
自動車エンジンの排気系に用いられるダイヤフラムとしては、例えばウェイストゲート用ダイヤフラム、アクチュエータ用ダイヤフラム、EGR用ダイヤフラムなどが挙げられる。
自動車エンジンのブレーキ系に用いられるダイヤフラムとしては、例えばエアーブレーキ用ダイヤフラムなどが挙げられる。
自動車エンジンの駆動系に用いられるダイヤフラムとしては、例えばオイルプレッシャー用ダイヤフラムなどが挙げられる。
自動車エンジンの点火系に用いられるダイヤフラムとしては、例えばディストリビューター用ダイヤフラムなどが挙げられる。
(測定装置)
アイティー計測制御(株)製の動的粘弾性測定装置 DVA−220
(測定条件)
試験片:幅3mm×厚さ2mmサイズの長方体の架橋済みゴム
測定モード:引張
チャック間距離:20mm
測定温度:160℃
初期加重:157cN
周波数:10Hz
にて、歪み分散を測定し、引張歪み1%の損失弾性率E”及び貯蔵弾性率E’を算出する。
(測定装置)
アルファテクノロジーズ社製ラバープロセスアナライザ(型式:RPA2000)
(測定条件)
100℃、1Hzにて歪み分散を測定し、剪断弾性率G’を求める。このとき、動的歪みを1%、100%として各々G’を求め、δG’(G’(1%)−G’(100%))を算出する。
JIS−K6262に従い、圧縮永久ひずみ試験用大型試験片を用いて耐割れ性を測定する。試験装置は、JIS−K6262の5圧縮永久ひずみ試験で用いる圧縮装置で、試験片の圧縮率が55%となるスペーサを用いた。割れの無いものを○、割れの有るものを×とする。
ムーニー粘度は、ASTM−D1646及びJIS K6300に準拠して測定した。測定温度は100℃である。
A:82Lのステンレススチール製のオートクレーブに純水44L、CH2=CFCF2OCF(CF3)CF2OCF(CF3)COONH4の50%水溶液を8.8g、F(CF2)3COONH4の50%水溶液176gを仕込み、系内を窒素ガスで充分に置換した。230rpmで攪拌しながら80℃に昇温した後、初期槽内モノマー組成をVdF/HFP=50/50モル%、1.52MPaとなるようにモノマーを圧入した。ついでAPS1.0gを220mlの純水に溶解した重合開始剤溶液を窒素ガスで圧入し、反応を開始した。重合の進行に伴い内圧が1.42MPaに降下した時点で追加モノマーであるVdF/HFP=78/22モル%の混合モノマーを内圧が1.52MPaとなるまで圧入した。このとき、ジヨウ素化合物I(CF2)4Iの73gを圧入した。昇圧、降圧を繰り返しつつ、3時間ごとにAPSの1.0g/純水220ml水溶液を窒素ガスで圧入して、重合反応を継続した。混合モノマーを14000g追加した時点で、未反応モノマーを放出し、オートクレーブを冷却して、固形分濃度23.1質量%のフッ素ゴムのディスパージョンを得た。このフッ素ゴムをNMR分析により共重合組成を調べたところ、VdF/HFP=78/22(モル%)であり、ムーニー粘度(ML1+10(100℃))は55であった。このフッ素ゴムをフッ素ゴムAとする。
B1:HAF(N2SA=79m2/g、DBP吸油量=101ml/100g)。東海カーボン(株)製の「シースト3」(商品名)
ビスフェノールAF
DBU−B
混練機(モリヤマ製のDS3−7.5)により、フロントローター回転数:53rpm、バックローター回転数:47rpmの混練条件で、フッ素ゴムAの100質量部にカーボンブラックB1を15質量部を混練し、フッ素ゴムプレコンパウンドを調製した。なお、排出された混練物の最高温度は162℃であった。
8インチオープンロール(関西ロール(株)製)により、フロントロール回転数21rpm、バックロール回転数19rpm、ロール間隙0.1cmの条件で、フッ素ゴムAの100質量部に、表1に示す量のカーボンブラックB1を30分間かけて混練し、フッ素ゴムプレコンパウンドを調製した。なお、排出された混練物の最高温度は72℃であった。
実施例2において、カーボンブラックB1に代えてカーボンブラックB2を用いたほかは実施例2と同じ条件で行った。結果を表1に示す。
Claims (7)
- フッ素ゴム(A)及びカーボンブラック(B)を含むフッ素ゴム組成物
を架橋して得られる架橋フッ素ゴム層を有し、
架橋フッ素ゴム層が、動的粘弾性試験(測定温度:160℃、引張歪み:1%、初期加重:157cN、周波数:10Hz)において、損失弾性率E”が、600kPa以上6000kPa以下であるシール材。 - 架橋フッ素ゴム層が、動的粘弾性試験(測定温度:160℃、引張歪み:1%、初期加重:157cN、周波数:10Hz)において、貯蔵弾性率E’が1500kPa以上20000kPa以下である請求項1記載のシール材。
- フッ素ゴム(A)100質量部に対してカーボンブラック(B)を5〜50質量部含む請求項1又は2記載のシール材。
- カーボンブラック(B)が、窒素吸着比表面積(N2SA)が20〜180m2/gであって、ジブチルフタレート(DBP)吸油量が50〜180ml/100gであるカーボンブラックである請求項1〜3のいずれか1項に記載のシール材。
- フッ素ゴム(A)が、フッ化ビニリデン系共重合体ゴム、テトラフルオロエチレン/パーフルオロ(アルキルビニルエーテル)系共重合体ゴム、又はテトラフルオロエチレン/プロピレン系共重合体ゴムである請求項1〜4のいずれか1項に記載のシール材。
- フッ素ゴム組成物が、架橋剤(C)及び/又は架橋助剤(D)を含む請求項1〜5のいずれか1項に記載のシール材。
- センサー用シール材である請求項1〜6のいずれか1項に記載のシール材。
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