JPH10101867A - Radiation-resistant rubber composition and power cable - Google Patents
Radiation-resistant rubber composition and power cableInfo
- Publication number
- JPH10101867A JPH10101867A JP8261691A JP26169196A JPH10101867A JP H10101867 A JPH10101867 A JP H10101867A JP 8261691 A JP8261691 A JP 8261691A JP 26169196 A JP26169196 A JP 26169196A JP H10101867 A JPH10101867 A JP H10101867A
- Authority
- JP
- Japan
- Prior art keywords
- rubber composition
- radiation
- ethylene
- resistant rubber
- cross
- 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.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 50
- 229920001971 elastomer Polymers 0.000 title claims abstract description 48
- 239000005060 rubber Substances 0.000 title claims abstract description 48
- 230000005855 radiation Effects 0.000 title claims abstract description 19
- 239000003063 flame retardant Substances 0.000 claims abstract description 26
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims abstract description 21
- 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 claims abstract description 19
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 14
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 12
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 12
- 239000011593 sulfur Substances 0.000 claims abstract description 12
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000005977 Ethylene Substances 0.000 claims abstract description 11
- 238000004132 cross linking Methods 0.000 claims abstract description 9
- 239000004020 conductor Substances 0.000 claims abstract description 6
- 150000001451 organic peroxides Chemical class 0.000 claims abstract description 5
- 230000032683 aging Effects 0.000 abstract description 8
- VEORPZCZECFIRK-UHFFFAOYSA-N 3,3',5,5'-tetrabromobisphenol A Chemical compound C=1C(Br)=C(O)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(O)C(Br)=C1 VEORPZCZECFIRK-UHFFFAOYSA-N 0.000 abstract description 3
- 239000005077 polysulfide Substances 0.000 abstract description 3
- 229920001021 polysulfide Polymers 0.000 abstract description 3
- 150000008117 polysulfides Polymers 0.000 abstract description 3
- KQNZLOUWXSAZGD-UHFFFAOYSA-N benzylperoxymethylbenzene Chemical compound C=1C=CC=CC=1COOCC1=CC=CC=C1 KQNZLOUWXSAZGD-UHFFFAOYSA-N 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 5
- 238000010292 electrical insulation Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 150000001993 dienes Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- -1 phenol compound Chemical class 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- GRPTWLLWXYXFLX-UHFFFAOYSA-N 1,1,2,2,3,3-hexabromocyclodecane Chemical compound BrC1(Br)CCCCCCCC(Br)(Br)C1(Br)Br GRPTWLLWXYXFLX-UHFFFAOYSA-N 0.000 description 2
- HGRZLIGHKHRTRE-UHFFFAOYSA-N 1,2,3,4-tetrabromobutane Chemical compound BrCC(Br)C(Br)CBr HGRZLIGHKHRTRE-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 239000012796 inorganic flame retardant Substances 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 description 2
- QEQBMZQFDDDTPN-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy benzenecarboperoxoate Chemical compound CC(C)(C)OOOC(=O)C1=CC=CC=C1 QEQBMZQFDDDTPN-UHFFFAOYSA-N 0.000 description 1
- PRBHEGAFLDMLAL-GQCTYLIASA-N (4e)-hexa-1,4-diene Chemical compound C\C=C\CC=C PRBHEGAFLDMLAL-GQCTYLIASA-N 0.000 description 1
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- RVHSTXJKKZWWDQ-UHFFFAOYSA-N 1,1,1,2-tetrabromoethane Chemical compound BrCC(Br)(Br)Br RVHSTXJKKZWWDQ-UHFFFAOYSA-N 0.000 description 1
- NALFRYPTRXKZPN-UHFFFAOYSA-N 1,1-bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane Chemical compound CC1CC(C)(C)CC(OOC(C)(C)C)(OOC(C)(C)C)C1 NALFRYPTRXKZPN-UHFFFAOYSA-N 0.000 description 1
- OTMBZPVYOQYPBE-UHFFFAOYSA-N 1,1-bis(tert-butylperoxy)cyclododecane Chemical compound CC(C)(C)OOC1(OOC(C)(C)C)CCCCCCCCCCC1 OTMBZPVYOQYPBE-UHFFFAOYSA-N 0.000 description 1
- IVORCBKUUYGUOL-UHFFFAOYSA-N 1-ethynyl-2,4-dimethoxybenzene Chemical compound COC1=CC=C(C#C)C(OC)=C1 IVORCBKUUYGUOL-UHFFFAOYSA-N 0.000 description 1
- WVGXBYVKFQJQGN-UHFFFAOYSA-N 1-tert-butylperoxy-2-propan-2-ylbenzene Chemical compound CC(C)C1=CC=CC=C1OOC(C)(C)C WVGXBYVKFQJQGN-UHFFFAOYSA-N 0.000 description 1
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- ANHAEBWRQNIPEV-UHFFFAOYSA-N 2-chloroethyl dihydrogen phosphate Chemical compound OP(O)(=O)OCCCl ANHAEBWRQNIPEV-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- WTQBISBWKRKLIJ-UHFFFAOYSA-N 5-methylidenebicyclo[2.2.1]hept-2-ene Chemical compound C1C2C(=C)CC1C=C2 WTQBISBWKRKLIJ-UHFFFAOYSA-N 0.000 description 1
- KUFDSEQTHICIIF-UHFFFAOYSA-N 6-methylhepta-1,5-diene Chemical compound CC(C)=CCCC=C KUFDSEQTHICIIF-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- JGDSPOCXKKSJTF-UHFFFAOYSA-N C(C)(C)(C)OOC1=CC(=C(C=C1C(C)C)C(C)C)OOC(C)(C)C Chemical compound C(C)(C)(C)OOC1=CC(=C(C=C1C(C)C)C(C)C)OOC(C)(C)C JGDSPOCXKKSJTF-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- FMRLDPWIRHBCCC-UHFFFAOYSA-L Zinc carbonate Chemical compound [Zn+2].[O-]C([O-])=O FMRLDPWIRHBCCC-UHFFFAOYSA-L 0.000 description 1
- 231100000987 absorbed dose Toxicity 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- QBLDFAIABQKINO-UHFFFAOYSA-N barium borate Chemical compound [Ba+2].[O-]B=O.[O-]B=O QBLDFAIABQKINO-UHFFFAOYSA-N 0.000 description 1
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 description 1
- 229910001863 barium hydroxide Inorganic materials 0.000 description 1
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 description 1
- 125000006267 biphenyl group Chemical group 0.000 description 1
- 229910021538 borax Inorganic materials 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
- HHSPVTKDOHQBKF-UHFFFAOYSA-J calcium;magnesium;dicarbonate Chemical compound [Mg+2].[Ca+2].[O-]C([O-])=O.[O-]C([O-])=O HHSPVTKDOHQBKF-UHFFFAOYSA-J 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- CAYGQBVSOZLICD-UHFFFAOYSA-N hexabromobenzene Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1Br CAYGQBVSOZLICD-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- GVYLCNUFSHDAAW-UHFFFAOYSA-N mirex Chemical compound ClC12C(Cl)(Cl)C3(Cl)C4(Cl)C1(Cl)C1(Cl)C2(Cl)C3(Cl)C4(Cl)C1(Cl)Cl GVYLCNUFSHDAAW-UHFFFAOYSA-N 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 150000002790 naphthalenes Chemical class 0.000 description 1
- SJYNFBVQFBRSIB-UHFFFAOYSA-N norbornadiene Chemical compound C1=CC2C=CC1C2 SJYNFBVQFBRSIB-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000010057 rubber processing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- PNWOTXLVRDKNJA-UHFFFAOYSA-N tert-butylperoxybenzene Chemical compound CC(C)(C)OOC1=CC=CC=C1 PNWOTXLVRDKNJA-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- NWIKMSABBNGQRG-UHFFFAOYSA-N tris(3,3-dibromopropyl) phosphate Chemical compound BrC(Br)CCOP(=O)(OCCC(Br)Br)OCCC(Br)Br NWIKMSABBNGQRG-UHFFFAOYSA-N 0.000 description 1
- XHTMGDWCCPGGET-UHFFFAOYSA-N tris(3,3-dichloropropyl) phosphate Chemical compound ClC(Cl)CCOP(=O)(OCCC(Cl)Cl)OCCC(Cl)Cl XHTMGDWCCPGGET-UHFFFAOYSA-N 0.000 description 1
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000011667 zinc carbonate Substances 0.000 description 1
- 229910000010 zinc carbonate Inorganic materials 0.000 description 1
- 235000004416 zinc carbonate Nutrition 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
- Insulated Conductors (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、優れた耐熱老化特
性、機械的特性、電気絶縁性及び加工性を有し、さらに
耐放射線特性に優れたゴム組成物、該ゴム組成物に難燃
剤を含む難燃性ゴム組成物及び該難燃性ゴム組成物で被
覆した電力ケーブルに関する。TECHNICAL FIELD The present invention relates to a rubber composition having excellent heat aging characteristics, mechanical characteristics, electrical insulation properties and workability, and further having excellent radiation resistance, and a flame retardant added to the rubber composition. The present invention relates to a flame-retardant rubber composition and a power cable coated with the flame-retardant rubber composition.
【０００２】[0002]
【従来の技術】従来から、特にエチレン含有量の多いエ
チレン−プロピレンゴムは機械的強度、電気絶縁性、加
工性、耐熱老化特性等に優れており、これに難燃剤を加
えることにより前記の特性に加えて難燃性を有するゴム
組成物が得られることが知られている。2. Description of the Related Art Conventionally, ethylene-propylene rubber having a particularly high ethylene content has been excellent in mechanical strength, electrical insulation, processability, heat aging characteristics, etc. In addition, it is known that a rubber composition having flame retardancy can be obtained.
【０００３】しかしこのようなエチレン−プロピレンゴ
ムは放射線に曝されると機械的特性や電気的特性が容易
に劣化し、耐放射線特性に劣るものであった。従ってこ
のようなゴム組成物は原子力関連の用途、例えば原子力
関連機器等の電気配線用のケーブルの絶縁被覆等として
は使用できない。However, such an ethylene-propylene rubber easily deteriorates in mechanical properties and electrical properties when exposed to radiation, and is inferior in radiation resistance. Therefore, such a rubber composition cannot be used as an insulating coating of a cable for electric wiring of a nuclear power related device such as a nuclear power related device.
【０００４】そこで上記のようなエチレン−プロピレン
ゴムによって得られる特性を保持し、さらに耐放射線特
性に優れたゴム組成物が求められている。[0004] Therefore, there is a demand for a rubber composition which retains the characteristics obtained by the above-mentioned ethylene-propylene rubber and further has excellent radiation resistance.
【０００５】[0005]
【発明が解決しようとする課題】従って本発明の目的
は、従来のエチレン−プロピレンゴムと同等の電気絶縁
性、加工性、耐熱老化特性、機械的強度を有し、さらに
耐放射線特性に優れたゴム組成物を提供することであ
る。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide the same electrical insulation, workability, heat aging characteristics, and mechanical strength as conventional ethylene-propylene rubbers, and also have excellent radiation resistance. It is to provide a rubber composition.
【０００６】さらに本発明の目的は、上記のような特性
に加えて難燃性を有する難燃性ゴム組成物を提供するこ
とである。It is a further object of the present invention to provide a flame-retardant rubber composition having flame retardancy in addition to the above properties.
【０００７】また本発明は、導体外周に上記難燃性ゴム
組成物からなる絶縁層及び／またはシースを有する電力
ケーブルを提供することを目的とする。Another object of the present invention is to provide a power cable having an insulating layer and / or a sheath made of the above flame-retardant rubber composition on the outer periphery of a conductor.
【０００８】[0008]
【課題を解決するための手段】本発明者の研究の結果、
エチレン−プロピレンゴム１００重量部を０．１〜５重
量部のイオウ含有フェノール系共架橋剤で架橋したゴム
組成物が、従来のエチレン−プロピレンゴムと同等の電
気絶縁性、加工性、耐熱老化特性、機械的強度を有し、
さらに優れた耐放射線特性を示すことが見出された。As a result of the research by the present inventors,
A rubber composition obtained by crosslinking 100 parts by weight of ethylene-propylene rubber with 0.1 to 5 parts by weight of a sulfur-containing phenolic co-crosslinking agent has the same electrical insulation, processability, and heat aging characteristics as conventional ethylene-propylene rubber. Has mechanical strength,
It has been found that they show even better radiation resistance.
【０００９】従って本発明は、エチレン含有量の多いエ
チレン−プロピレンゴム１００重量部を０．１〜５重量
部のイオウ含有フェノール系共架橋剤で架橋したゴム組
成物に関する。Accordingly, the present invention relates to a rubber composition obtained by crosslinking 100 parts by weight of an ethylene-propylene rubber having a high ethylene content with 0.1 to 5 parts by weight of a sulfur-containing phenolic co-crosslinking agent.
【００１０】さらに上記ゴム組成物に難燃剤を加えるこ
とにより、上記特性に加え優れた難燃性を有する難燃性
ゴム組成物が得られることも見出された。従って本発明
は、上記ゴム組成物１００重量部に対し難燃剤５〜１５
０重量部を含む難燃性ゴム組成物にも関する。It has also been found that a flame retardant rubber composition having excellent flame retardancy in addition to the above properties can be obtained by adding a flame retardant to the above rubber composition. Therefore, the present invention provides a flame retardant of 5 to 15 parts by weight based on 100 parts by weight of the rubber composition.
It also relates to a flame-retardant rubber composition containing 0 parts by weight.
【００１１】また本発明は、導体外周に上記難燃性ゴム
組成物からなる絶縁層及び／またはシースを有する電力
ケーブルにも関する。[0011] The present invention also relates to a power cable having an insulating layer and / or a sheath made of the above-mentioned flame-retardant rubber composition on the outer periphery of a conductor.
【００１２】[0012]
【発明の実施の形態】以下、本発明につき詳述する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.
【００１３】本発明のゴム組成物に使用されるエチレン
−プロピレンゴムは従来公知のものでよいが、好ましく
は７０〜９０モル% のエチレン含有量を有するエチレン
含有量の多いものを使用する。エチレン含有量の多いエ
チレン−プロピレンゴムを選択するのは初期の機械的強
度の大きいものを選択する趣旨であり、エチレン含有量
が７０モル% 以上であるとエチレンの結晶性の効果がゴ
ム物性に反映され、十分な機械的強度が得られる。ま
た、エチレンの含有量が９０モル% を越えるとゴムが樹
脂状になり、通常のゴムの加工で使用されるロール加工
に適さなくなるので９０モル% 以下とすることが好まし
い。本発明のゴム組成物に使用されるエチレン−プロピ
レンゴムのエチレンの含有量はより好ましくは８０〜９
０モル% 、特に８５〜９０モル% である。The ethylene-propylene rubber used in the rubber composition of the present invention may be a conventionally known one, but preferably a high ethylene content rubber having an ethylene content of 70 to 90 mol% is used. The reason for selecting an ethylene-propylene rubber having a high ethylene content is to select a rubber having a large initial mechanical strength. When the ethylene content is 70 mol% or more, the effect of ethylene crystallinity is exerted on rubber physical properties. Reflected, sufficient mechanical strength is obtained. If the content of ethylene exceeds 90 mol%, the rubber becomes resinous and becomes unsuitable for roll processing used in ordinary rubber processing. Therefore, the content is preferably 90 mol% or less. The ethylene content of the ethylene-propylene rubber used in the rubber composition of the present invention is more preferably 80-9.
0 mol%, especially 85-90 mol%.
【００１４】また、エチレン−プロピレンゴムは通常、
第三成分のジエンモノマーを加えて長鎖分岐を形成して
加工性を調整し、いわゆるＥＰＤＭとして使用されるこ
とが多いが、本発明のゴム組成物においても、本発明の
所望の効果を損ねない範囲でジエンモノマーを加えても
よい。[0014] The ethylene-propylene rubber is usually
The diene monomer of the third component is added to form a long-chain branch to adjust the processability and is often used as a so-called EPDM. However, the rubber composition of the present invention also impairs the desired effects of the present invention. A diene monomer may be added in a range that does not exist.
【００１５】使用できるジエンモノマーの例としては、
１，３−ブタジエン、１，４−ヘキサジエン、６−メチ
ル−１，５−ヘプタジエン、５−メチレン−２−ノルボ
ルネン、５−アルキニル−２−ノルボルネン、２，５−
ノルボルナジエン、ジシクロペンタジエン等が挙げられ
る。これらのジエンモノマーは、一般的には、エチレン
−プロピレンゴム１００重量部に対して０．５〜２０重
量部程度の量で添加される。Examples of diene monomers that can be used include:
1,3-butadiene, 1,4-hexadiene, 6-methyl-1,5-heptadiene, 5-methylene-2-norbornene, 5-alkynyl-2-norbornene, 2,5-
Examples include norbornadiene and dicyclopentadiene. These diene monomers are generally added in an amount of about 0.5 to 20 parts by weight based on 100 parts by weight of the ethylene-propylene rubber.
【００１６】本発明のゴム組成物に使用されるイオウ含
有フェノール系共架橋剤は、分子構造内にフェノール基
とイオウ連結鎖を含む化合物であって、ゴムの加硫中に
分解してフェノール化合物と遊離イオウ連結鎖を生成し
得る化合物である。具体的には、ポリ硫化フェノール等
の化合物がある。このような化合物としては三新化学社
製の「サンセラーＡＰ」（ポリ硫化フェノール共架橋
剤）等の市販品が利用できる。イオウ含有フェノール系
共架橋剤は、エチレン−プロピレンゴム１００重量部に
対して０．１〜５重量部、好ましくは０．１〜２．０重
量部の量で使用される。The sulfur-containing phenolic co-crosslinking agent used in the rubber composition of the present invention is a compound containing a phenol group and a sulfur connecting chain in its molecular structure. And a compound capable of forming a free sulfur connecting chain. Specifically, there are compounds such as polysulfide phenol. As such a compound, a commercially available product such as "Sanseller AP" (a polysulfide phenol co-crosslinking agent) manufactured by Sanshin Chemical Co., Ltd. can be used. The sulfur-containing phenolic co-crosslinking agent is used in an amount of 0.1 to 5 parts by weight, preferably 0.1 to 2.0 parts by weight, based on 100 parts by weight of the ethylene-propylene rubber.
【００１７】本発明のゴム組成物に使用されるイオウ含
有フェノール系共架橋剤は、上記の通りゴムの加硫中に
分解してフェノール化合物と遊離イオウ連結鎖を生成す
る。生成したフェノール化合物は放射線照射等によって
ラジカル化したポリマーをトラップし、ラジカルを安定
化させる。一方、遊離イオウ連結鎖はポリマー間でポリ
またはモノイオウ結合を形成してポリマーを架橋させ、
機械的物性を向上させる。As described above, the sulfur-containing phenolic co-crosslinking agent used in the rubber composition of the present invention decomposes during the vulcanization of rubber to form a phenol compound and a free sulfur connecting chain. The generated phenol compound traps a polymer radicalized by irradiation or the like and stabilizes the radical. On the other hand, free sulfur linking chains form poly- or mono-sulfur bonds between the polymers to cross-link the polymers,
Improve mechanical properties.
【００１８】また、本発明のゴム組成物の架橋には有機
過酸化物を併用してもよい。有機過酸化物としては公知
のものを使用することができ、例えば、ベンジルパーキ
サイド、１，１−ビス−ｔ−ブチルパーオキシ−３，
３，５−トリメチルシクロヘキサン、１，１−ビス（ｔ
−ブチルパーオキシ）シクロドデカン、ｎ−ブチル−
４，４−ビス−ｔ−ブチルパーオキサイド、ジクミルパ
ーオキサイド、ｔ−ブチルパーオキシベンゾエート、ジ
−ｔ−ブチルパーオキサイド、ジ（ｔ−ブチルパーオキ
シ）−ｍ−ジイソプロピルベンゼン、２，５−ジメチル
−２，５−ジ（ｔ−ブチル）パーオキシベンゼン、ｔ−
ブチルパーオキシクメン等を用いることができる。Further, an organic peroxide may be used in combination for crosslinking the rubber composition of the present invention. Known organic peroxides can be used, for example, benzyl peroxide, 1,1-bis-t-butylperoxy-3,
3,5-trimethylcyclohexane, 1,1-bis (t
-Butylperoxy) cyclododecane, n-butyl-
4,4-bis-t-butyl peroxide, dicumyl peroxide, t-butyl peroxybenzoate, di-t-butyl peroxide, di (t-butylperoxy) -m-diisopropylbenzene, 2,5- Dimethyl-2,5-di (t-butyl) peroxybenzene, t-
Butyl peroxycumene or the like can be used.
【００１９】これらの有機過酸化物は単独であるいは２
種以上組み合わせて使用することができ、エチレン−プ
ロピレンゴム１００重量部あたり、好ましくは０．１〜
１０重量部程度の量で使用される。These organic peroxides can be used alone or
It can be used in combination of at least one kind, preferably 0.1 to 100 parts by weight of ethylene-propylene rubber
It is used in an amount of about 10 parts by weight.
【００２０】本発明のゴム組成物には、さらに難燃剤を
添加することにより優れた難燃性を付与することができ
る。難燃剤としては、公知のハロゲン系難燃剤、リン系
難燃剤、その他の無機系難燃剤等を用いることができ
る。ハロゲン系難燃剤としては、テトラブロモビスフェ
ノールＡ（ＴＢＡ）、ヘキサブロモベンゼン、デカブロ
モジフェニルエーテル、テトラブロモエタン（ＴＢ
Ｅ）、テトラブロモブタン（ＴＢＢ）、ヘキサブロモシ
クロデカン（ＨＢＣＤ）等の臭素系難燃剤、及び塩素化
パラフィン、塩素化ポリフェニル、塩素化ジフェニル、
パークロロペンタシクロデカン、塩素化ナフタレン等の
塩素系難燃剤が挙げられる。これらは三酸化アンチモン
等と併用することによりさらに良好な難燃効果を発揮す
る。リン系難燃剤としては、トリクレジルホスフェー
ト、トリ（β−クロロエチルホスフェート）、トリ（ジ
クロロプロピル）ホスフェート、トリ（ジブロモプロピ
ル）ホスフェート、２，３−ジブロモプロピル−２，３
−クロロプロピルホスフェート等が挙げられる。その他
の無機難燃剤としては、水酸化アルミニウム、水酸化マ
グネシウム、水酸化ジルコニウム、水酸化カルシウム、
水酸化バリウム、塩基性炭酸マグネシウム、ドロマイ
ト、酸化スズの水和物、ホウ砂等の無機金属水和物、硼
酸亜鉛、メタ硼酸バリウム、炭酸亜鉛、炭酸マグネシウ
ム−カルシウム、炭酸バリウム、酸化マグネシウム、酸
化モリブデン、酸化ジルコニウム、酸化スズ、赤リン等
が挙げられる。これらの難燃剤は単独で、あるいは２種
以上を組み合わせて使用することができ、一般的にはエ
チレン−プロピレンゴム１００重量部あたり５〜１５０
重量部、好ましくは５０〜１００重量部の量で使用する
ことができる。Excellent flame retardancy can be imparted to the rubber composition of the present invention by further adding a flame retardant. As the flame retardant, known halogen-based flame retardants, phosphorus-based flame retardants, and other inorganic flame retardants can be used. Examples of halogen-based flame retardants include tetrabromobisphenol A (TBA), hexabromobenzene, decabromodiphenyl ether, tetrabromoethane (TB
E), brominated flame retardants such as tetrabromobutane (TBB) and hexabromocyclodecane (HBCD), and chlorinated paraffins, chlorinated polyphenyls, chlorinated diphenyls,
Chlorine-based flame retardants such as perchloropentacyclodecane and chlorinated naphthalene are exemplified. These exhibit more favorable flame retardant effects when used in combination with antimony trioxide and the like. Phosphorus-based flame retardants include tricresyl phosphate, tri (β-chloroethyl phosphate), tri (dichloropropyl) phosphate, tri (dibromopropyl) phosphate, 2,3-dibromopropyl-2,3
-Chloropropyl phosphate and the like. Other inorganic flame retardants include aluminum hydroxide, magnesium hydroxide, zirconium hydroxide, calcium hydroxide,
Barium hydroxide, basic magnesium carbonate, dolomite, hydrate of tin oxide, hydrate of inorganic metal such as borax, zinc borate, barium metaborate, zinc carbonate, magnesium-calcium carbonate, barium carbonate, magnesium oxide, oxidation Examples include molybdenum, zirconium oxide, tin oxide, and red phosphorus. These flame retardants can be used alone or in combination of two or more, and generally, 5 to 150 per 100 parts by weight of ethylene-propylene rubber.
It can be used in an amount of 50 parts by weight, preferably 50 to 100 parts by weight.
【００２１】さらに本発明のゴム組成物にはその目的と
する効果を阻害しない範囲で、所望により、酸化マグネ
シウム、酸化アルミニウム、酸化ジルコニウム、酸化チ
タン、炭化珪素、マイカ等の無機充填剤、ステアリン
酸、オレイン酸等の脂肪酸またはその金属塩等の可塑
剤、鉱物油、ワックス、パラフィン類等の軟化剤、エス
テル、アミド類等の老化防止剤、着色剤、酸化防止剤、
紫外線吸収剤、滑剤、安定剤等のその他の添加剤を添加
してもよい。In the rubber composition of the present invention, if necessary, an inorganic filler such as magnesium oxide, aluminum oxide, zirconium oxide, titanium oxide, silicon carbide, mica, etc., and stearic acid may be used as long as the intended effect is not impaired. , Plasticizers such as fatty acids such as oleic acid or metal salts thereof, mineral oils, waxes, softeners such as paraffins, antiaging agents such as esters and amides, coloring agents, antioxidants,
Other additives such as an ultraviolet absorber, a lubricant, and a stabilizer may be added.
【００２２】本発明のゴム組成物の製造方法は特に限定
されるものではなく、公知の方法により製造することが
できる。エチレン−プロピレンゴム及びイオウ含有フェ
ニル系架橋剤、並びに所望により上記に挙げたような任
意の成分を配合し、これらを通常のバンバリーミキサ
ー、タンブラー、加圧ニーダー、混練押出機、二軸押出
機、ロール等の混練機で混練し、成形物を製造し、次に
加熱架橋、温水中での水架橋、電子線や高エネルギー放
射線を照射して架橋することができる。The method for producing the rubber composition of the present invention is not particularly limited, and it can be produced by a known method. Ethylene-propylene rubber and sulfur-containing phenyl cross-linking agent, and optionally any of the above-mentioned components are blended, and these are mixed with a usual Banbury mixer, tumbler, pressure kneader, kneading extruder, twin-screw extruder, The mixture can be kneaded with a kneading machine such as a roll to produce a molded product, and then crosslinked by heating, water crosslinking in warm water, or irradiation with an electron beam or high-energy radiation.
【００２３】上記の本発明のゴム組成物からなる絶縁被
覆を有する電力ケーブルは、例えば押出機とクロスヘッ
ドを用いる押出被覆加工のような公知の樹脂絶縁被覆ケ
ーブルの製造方法により製造することができる。The above-mentioned power cable having an insulating coating made of the rubber composition of the present invention can be manufactured by a known method of manufacturing a resin insulating coated cable such as extrusion coating using an extruder and a crosshead. .
【００２４】例えば本発明の電力ケーブルは、導体上に
ポリエチレン、導電性カーボン、架橋剤からなる内部半
導電層を設けさらにその上に本発明の絶縁層を設けて架
橋したもの、さらにその上に内部半導電層と同様の外部
半導電層を設けて架橋したもの（これらの２層あるいは
３層は同時に押し出し成形することができる）、これら
のケーブルに遮蔽テープ、抑えテープを巻回してその上
に難燃剤、架橋剤を含むＸＬＰＥからなるシースを設け
たもの、導体に本発明の組成物からなる絶縁層を押出
し、架橋したケーブル３本を介在材料（アラミド繊維
等）と共に縒り合わせ、抑えテープを巻回してその上に
上記と同様のシースを被覆したもの等の形態とすること
ができる。For example, the power cable of the present invention is obtained by providing an internal semiconductive layer made of polyethylene, conductive carbon, and a cross-linking agent on a conductor, and further providing the insulating layer of the present invention thereon, and then cross-linking the semi-conductive layer. An outer semiconductive layer similar to the inner semiconductive layer is provided and cross-linked (these two or three layers can be extruded simultaneously). Provided with a sheath made of XLPE containing a flame retardant and a cross-linking agent, extruding an insulating layer made of the composition of the present invention on a conductor, twisting three cross-linked cables together with an intervening material (aramid fiber, etc.), and suppressing tape And a form in which a sheath similar to the above is coated thereon.
【００２５】[0025]
【実施例】以下、実施例により本発明をさらに説明す
る。The present invention will be further described with reference to the following examples.
【００２６】実施例１及び２及び比較例１及び２ 表１に示した成分を同じく表１に示した量（重量部）で
配合し、バンバリーミキサー中において１００〜１５０
℃の温度で６〜１５分混練することにより架橋し、本発
明のゴム組成物及び比較例のゴム組成物を得た。Examples 1 and 2 and Comparative Examples 1 and 2 The components shown in Table 1 were blended in the same amounts (parts by weight) shown in Table 1, and 100 to 150 in a Banbury mixer.
Crosslinking was performed by kneading at a temperature of 5 ° C. for 6 to 15 minutes to obtain a rubber composition of the present invention and a rubber composition of Comparative Example.
【００２７】[0027]
【表１】 上記で得られた実施例１及び２、及び比較例１及び２の
組成物について初期特性として、引張強さ（JIS K 630
1）、伸び（JIS K 6301）、硬さ（JIS K 6301）、誘電
正接(tanδ、JIS K 6911）及び酸素指数（JIS K 7201）
を測定した。また熱老化特性を評価するため、各試料を
121 ℃に168 時間保持した後の引張強さ及び伸びを同様
に測定し、初期特性と比較した引張強さ残率及び伸び残
率を算出した。[Table 1] With respect to the compositions obtained in Examples 1 and 2 and Comparative Examples 1 and 2 obtained above, tensile strength (JIS K630
1), elongation (JIS K 6301), hardness (JIS K 6301), dielectric loss tangent (tanδ, JIS K 6911) and oxygen index (JIS K 7201)
Was measured. In addition, to evaluate the heat aging characteristics,
Tensile strength and elongation after keeping at 121 ° C. for 168 hours were measured in the same manner, and residual tensile strength and residual elongation were calculated in comparison with the initial properties.
【００２８】さらに耐放射線特性の評価のため、各試料
に吸収線量がそれぞれ0.5 MGy 及び1.0 MGy となるよう
に室温でγ線を照射した後、引張強さ、伸び及び誘電正
接を同様に測定し、引張強さ及び伸びについては同様に
残率を算出した。結果を下記表２に示す。Further, in order to evaluate the radiation resistance, each sample was irradiated with γ rays at room temperature so that the absorbed dose was 0.5 MGy and 1.0 MGy, respectively, and then the tensile strength, elongation and dielectric loss tangent were measured in the same manner. The residual ratio was similarly calculated for tensile strength and elongation. The results are shown in Table 2 below.
【００２９】[0029]
【表２】 表２に示した結果から明らかな通り、本発明の組成物の
初期特性は機械的特性、電気的特性(tanδ) 、難燃性と
も比較例の組成物と同等であるか、それよりも優れてお
り、熱老化後の機械的特性も同様である。さらに放射線
照射後については、本発明の組成物は特に伸び残率及び
tanδが比較例のものと比較して有意に優れており、機
械的特性及び電気的特性において耐放射線性に優れてい
ることが明らかである。[Table 2] As is clear from the results shown in Table 2, the initial properties of the composition of the present invention are equal to or better than the composition of the comparative example in mechanical properties, electrical properties (tan δ), and flame retardancy. The same applies to the mechanical properties after heat aging. Furthermore, after irradiation, the composition of the present invention is particularly elongation residual and
tan δ is significantly superior to that of the comparative example, and it is clear that the mechanical properties and the electrical properties are excellent in radiation resistance.
【００３０】[0030]
【発明の効果】本発明のゴム組成物は、従来のエチレン
−プロピレンゴムと同等の電気絶縁性、加工性、耐熱老
化特性、機械的強度を有し、有意に優れた耐放射線特性
を示す。また、上記の本発明のゴム組成物にさらに難燃
剤を含む本発明の難燃性ゴム組成物は上記特性に加えて
優れた難燃性を示す。従って、本発明の難燃性ゴム組成
物により被覆された電力ケーブルは原子力関連機器等の
電気配線用ケーブルとして有用である。The rubber composition of the present invention has electrical insulation, processability, heat aging characteristics, and mechanical strength equivalent to those of conventional ethylene-propylene rubber, and exhibits significantly superior radiation resistance. The flame-retardant rubber composition of the present invention further comprising a flame retardant in the above-mentioned rubber composition of the present invention exhibits excellent flame retardancy in addition to the above properties. Therefore, the power cable covered with the flame-retardant rubber composition of the present invention is useful as a cable for electric wiring of nuclear-related equipment and the like.
Claims (5)
を０．１〜５重量部のイオウ含有フェノール系共架橋剤
で架橋した耐放射線性ゴム組成物。1. A radiation-resistant rubber composition obtained by crosslinking 100 parts by weight of ethylene-propylene rubber with 0.1 to 5 parts by weight of a sulfur-containing phenolic co-crosslinking agent.
０モル% のエチレン含有量を有する請求項１に記載の耐
放射線性ゴム組成物。2. An ethylene-propylene rubber comprising 70 to 9
The radiation-resistant rubber composition according to claim 1, which has an ethylene content of 0 mol%.
請求項１または２に記載の耐放射線性ゴム組成物。3. The radiation-resistant rubber composition according to claim 1, which is crosslinked by using an organic peroxide crosslinking agent.
成物１００重量部に対し、５〜１５０重量部の難燃剤を
含む耐放射線性ゴム組成物。4. A radiation-resistant rubber composition comprising 5 to 150 parts by weight of a flame retardant based on 100 parts by weight of the rubber composition according to claim 1.
ゴム組成物からなる絶縁層及び／またはシースを有する
電力ケーブル。5. A power cable having an insulating layer and / or a sheath made of the radiation-resistant rubber composition according to claim 4 around a conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8261691A JPH10101867A (en) | 1996-10-02 | 1996-10-02 | Radiation-resistant rubber composition and power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8261691A JPH10101867A (en) | 1996-10-02 | 1996-10-02 | Radiation-resistant rubber composition and power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10101867A true JPH10101867A (en) | 1998-04-21 |
Family
ID=17365383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8261691A Pending JPH10101867A (en) | 1996-10-02 | 1996-10-02 | Radiation-resistant rubber composition and power cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10101867A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030011565A (en) * | 2001-07-24 | 2003-02-11 | 가부시키가이샤 리코 | A non-environmentally-hazardous wire harness |
| JP2011057835A (en) * | 2009-09-09 | 2011-03-24 | Arai Seisakusho Co Ltd | Ethylene-propylene rubber composition and rubber component using the same |
| CN101319065B (en) | 2007-06-08 | 2011-05-04 | 日立电线株式会社 | Radioresistant non-halide flame retardant resin composition and electric wire and cable using the same |
| CN101597397B (en) | 2009-06-03 | 2011-10-19 | 宝胜科技创新股份有限公司 | Irradiation resistant non-halogen low smoke flame-retardant sheathing material applied to nuclear power stations and preparation method |
| CN116218089A (en) * | 2023-02-28 | 2023-06-06 | 广州世达橡塑科技有限公司 | A kind of EPDM rubber material used for bellows sheath and preparation method thereof |
-
1996
- 1996-10-02 JP JP8261691A patent/JPH10101867A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030011565A (en) * | 2001-07-24 | 2003-02-11 | 가부시키가이샤 리코 | A non-environmentally-hazardous wire harness |
| CN101319065B (en) | 2007-06-08 | 2011-05-04 | 日立电线株式会社 | Radioresistant non-halide flame retardant resin composition and electric wire and cable using the same |
| CN101597397B (en) | 2009-06-03 | 2011-10-19 | 宝胜科技创新股份有限公司 | Irradiation resistant non-halogen low smoke flame-retardant sheathing material applied to nuclear power stations and preparation method |
| JP2011057835A (en) * | 2009-09-09 | 2011-03-24 | Arai Seisakusho Co Ltd | Ethylene-propylene rubber composition and rubber component using the same |
| CN116218089A (en) * | 2023-02-28 | 2023-06-06 | 广州世达橡塑科技有限公司 | A kind of EPDM rubber material used for bellows sheath and preparation method thereof |
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