JP6575777B2 - 電線 - Google Patents
電線 Download PDFInfo
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- JP6575777B2 JP6575777B2 JP2018024349A JP2018024349A JP6575777B2 JP 6575777 B2 JP6575777 B2 JP 6575777B2 JP 2018024349 A JP2018024349 A JP 2018024349A JP 2018024349 A JP2018024349 A JP 2018024349A JP 6575777 B2 JP6575777 B2 JP 6575777B2
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- 239000000203 mixture Substances 0.000 claims description 46
- 239000011347 resin Substances 0.000 claims description 27
- 229920005989 resin Polymers 0.000 claims description 27
- 239000011247 coating layer Substances 0.000 claims description 18
- 229920006172 Tetrafluoroethylene propylene Polymers 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 9
- BNEMLSQAJOPTGK-UHFFFAOYSA-N zinc;dioxido(oxo)tin Chemical compound [Zn+2].[O-][Sn]([O-])=O BNEMLSQAJOPTGK-UHFFFAOYSA-N 0.000 claims description 9
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 claims description 8
- JHXRVOAOESLJHL-UHFFFAOYSA-N ethene;1,2,3,4,5-pentabromobenzene Chemical compound C=C.BrC1=CC(Br)=C(Br)C(Br)=C1Br.BrC1=CC(Br)=C(Br)C(Br)=C1Br JHXRVOAOESLJHL-UHFFFAOYSA-N 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000000178 monomer Substances 0.000 description 10
- 125000004432 carbon atom Chemical group C* 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 9
- 239000004711 α-olefin Substances 0.000 description 9
- 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 class N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 8
- 238000004132 cross linking Methods 0.000 description 8
- 239000003431 cross linking reagent Substances 0.000 description 7
- 150000001451 organic peroxides Chemical class 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 6
- 230000032683 aging Effects 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 4
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 3
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- 238000010382 chemical cross-linking Methods 0.000 description 3
- 238000007334 copolymerization reaction Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000011256 inorganic filler Substances 0.000 description 3
- 229910003475 inorganic filler Inorganic materials 0.000 description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- BZQKBFHEWDPQHD-UHFFFAOYSA-N 1,2,3,4,5-pentabromo-6-[2-(2,3,4,5,6-pentabromophenyl)ethyl]benzene Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1CCC1=C(Br)C(Br)=C(Br)C(Br)=C1Br BZQKBFHEWDPQHD-UHFFFAOYSA-N 0.000 description 2
- LLVVSBBXENOOQY-UHFFFAOYSA-N 1,2,3,4,5-pentabromobenzene Chemical compound BrC1=CC(Br)=C(Br)C(Br)=C1Br LLVVSBBXENOOQY-UHFFFAOYSA-N 0.000 description 2
- 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 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 229910002012 Aerosil® Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- -1 ethylene, propylene Chemical group 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 239000003505 polymerization initiator Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- OKIRBHVFJGXOIS-UHFFFAOYSA-N 1,2-di(propan-2-yl)benzene Chemical compound CC(C)C1=CC=CC=C1C(C)C OKIRBHVFJGXOIS-UHFFFAOYSA-N 0.000 description 1
- DNJRKFKAFWSXSE-UHFFFAOYSA-N 1-chloro-2-ethenoxyethane Chemical compound ClCCOC=C DNJRKFKAFWSXSE-UHFFFAOYSA-N 0.000 description 1
- BJELTSYBAHKXRW-UHFFFAOYSA-N 2,4,6-triallyloxy-1,3,5-triazine Chemical compound C=CCOC1=NC(OCC=C)=NC(OCC=C)=N1 BJELTSYBAHKXRW-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000012986 chain transfer agent Substances 0.000 description 1
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000012933 diacyl peroxide Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical compound FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 1
- 150000002432 hydroperoxides Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- QANMHLXAZMSUEX-UHFFFAOYSA-N kinetin Chemical compound N=1C=NC=2N=CNC=2C=1NCC1=CC=CO1 QANMHLXAZMSUEX-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 125000005634 peroxydicarbonate group Chemical group 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- HEKQWIORQJRILW-UHFFFAOYSA-N tetrakis(prop-2-enyl) benzene-1,2,4,5-tetracarboxylate Chemical compound C=CCOC(=O)C1=CC(C(=O)OCC=C)=C(C(=O)OCC=C)C=C1C(=O)OCC=C HEKQWIORQJRILW-UHFFFAOYSA-N 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
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D127/00—Coating compositions based on 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; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on 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; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on 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; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/18—Homopolymers or copolymers of tetrafluoroethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
- C08L23/147—Copolymers of propene with monomers containing other atoms than carbon or hydrogen 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
- C08L27/18—Homopolymers or copolymers or tetrafluoroethene
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/443—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
- H01B3/445—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds from vinylfluorides or other fluoroethylenic compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2231—Oxides; Hydroxides of metals of tin
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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- 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
- C08K5/02—Halogenated hydrocarbons
- C08K5/03—Halogenated hydrocarbons aromatic, e.g. C6H5-CH2-Cl
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- Polymers & Plastics (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
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- Engineering & Computer Science (AREA)
- Organic Insulating Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
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Description
本開示の別の局面である電線が備える被覆層は、テトラフルオロエチレン−プロピレン共重合体以外の成分を含んでいても難燃性が高い。
1.絶縁組成物
(1−1)樹脂成分
本開示の絶縁組成物は樹脂成分を含む。本明細書において樹脂成分とは、樹脂、及び/又はゴム成分を含むものである。樹脂成分は、(a)テトラフルオロエチレンと炭素数が2以上4以下のα―オレフィンとの共重合体、及び(b)エチレン−アクリル酸エチル共重合体を含む。
(1−2)すず酸亜鉛
本開示の絶縁組成物は、100質量部の樹脂成分に対し、2質量部以上20質量部以下のすず酸亜鉛を含む。すず酸亜鉛の含有量が2質量部以上であることにより、本開示の絶縁組成物の難燃性が高くなる。すず酸亜鉛の含有量が20質量部以下であることにより、本開示の絶縁組成物の耐熱性が高くなる。なお、すず酸亜鉛の含有量は、100質量部の樹脂成分に対し、5質量部以上10質量部以下であることがより好ましい。
本開示の絶縁組成物は、100質量部の樹脂成分に対し、0.3質量部以上15質量部以下の臭素系難燃剤を含む。臭素系難燃剤の含有量が0.3質量部以上であることにより、本開示の絶縁組成物の難燃性が高くなる。臭素系難燃剤の含有量が15質量部以下であることにより、本開示の絶縁組成物の耐熱性が高くなる。なお、臭素系難燃剤の含有量は、100質量部の樹脂成分に対し、5質量部以上10質量部以下であることがより好ましい。
本開示の絶縁組成物は、例えば、架橋剤、架橋助剤、充填剤等をさらに含んでいてもよい。架橋剤及び架橋助剤により架橋が行われる。架橋として、例えば、化学架橋、照射架橋が挙げられる。化学架橋は、例えば、有機過酸化物やアミン類等を用いて行うことができる。照射架橋は、例えば、γ線や電子線等の電離性放射線を照射することで行うことができる。
本開示の絶縁組成物は、例えば、他の無機充填剤、安定剤、酸化防止剤、可塑剤、滑剤等の添加剤をさらに含んでいてもよい。
例えば図1に示すように、本開示の電線1は、導体2と、被覆層3と、を備える。被覆層3は導体2を被覆する。被覆層3は、前記「1.絶縁組成物」の項で述べた絶縁組成物を含む。被覆層3は、前記「1.絶縁組成物」の項で述べた絶縁組成物以外の成分を含んでいてもよいし、含んでいなくてもよい。図1に示される、本実施形態に係る電線1において、被覆層3は単層構造を有しているが、被覆層3は、複数の層から成る多層構造を有していてもよい。
(3−1)絶縁組成物の製造
表1に記載の各成分を、ミキサーを用いて混練することで、実施例1〜4、及び比較例1〜6の絶縁組成物をそれぞれ製造した。表1における各成分の配合量の単位は質量部である。
表1における「有機過酸化物」は、日本油脂製の商品名:パーブチルPである。パーブチルPの成分は、α,α’-ジ(ターシャル-ブチルパーオキサイド)ジイソプロピルべンゼンである。
表1における「酸化マグネシウム」は、協和化学工業の商品名:キョーワマグ30である。
表1における「炭酸カルシウム」は、白石工業製の商品名:ソフトン1200である。
表1における「すず酸亜鉛」は、水澤化学工業製の商品名:アルカネックスZSである。
(3−2)電線の製造
実施例1〜4、及び比較例1〜6の絶縁組成物を用いて電線を製造した。その製造方法は以下のとおりである。外径0.9mmの錫めっき銅撚線導体上に、40mm押出機を用いて絶縁組成物を押出被覆し、被覆層を形成した。被覆層を形成する絶縁組成物は、実施例1〜4、及び比較例1〜6の絶縁組成物のうちのいずれかである。押出機における温度設定は以下のとおりである。
シリンダー2:80℃
シリンダー3:80℃
ヘッド:90℃
ダイス:100℃
次に、被覆層に対し、13気圧のスチームにて3分間架橋を行い、電線を完成した。 (3−3)被覆層の評価方法
前記(3−2)で製造した電線から、錫めっき銅撚線導体を引き抜いた。残ったチューブ状の被覆層を試験体とした。試験体は絶縁組成物から成る。試験体について、以下の方法で引張特性、耐熱性、及び難燃性を評価した。また、被覆層の組成に基づき、絶縁組成物のコンパウンド価格の高低を判断した。
引張特性の評価方法は、JIS C 3005に準拠した評価方法である。
引張強さと、伸びとを測定した。測定結果を上記表1に示す。引張強さが10MPa以上であり、伸びが200%以上であれば、引張特性を合格とした。
試験体の引張強さと伸びとを、前記(i)と同様の方法で測定した。このときの引張強さを初期引張強さA0とする。また、このときの伸びを、初期伸びB0とする。
式(1) Ar=(A1/A0)×100
式(2) Br=(B1/B0)×100
引張強さ残率Ar及び伸び残率Brの算出結果を上記表1に示す。引張強さ残率Arが80%以上であり、伸び残率Brが80%以上であれば、耐熱性を合格とした。
試験体に対し、UL758に準拠した垂直燃焼試験(VW−1)を行った。1分以内に自己消化したものを合格とした。自己消化までの時間が1分を超えたものを不合格とした。難燃性の評価結果を上記表1に示す。表1において○は合格を意味し、×は不合格を意味する。
エチレン−アクリル酸エチル共重合体のコンパウンド価格は、テトラフルオロエチレンと炭素数が2以上4以下のα―オレフィンとの共重合体のコンパウンド価格より顕著に低い。そのため、樹脂成分におけるエチレン−アクリル酸エチル共重合体の質量比が2質量%以上であれば、絶縁組成物のコンパウンド価格が低いと判断した。樹脂成分におけるエチレン−アクリル酸エチル共重合体の質量比が2質量%未満であれば、絶縁組成物のコンパウンド価格が高いと判断した。コンパウンド価格についての判断結果を上記表1に示す。
上記表1に示すように、実施例1〜4の絶縁組成物は、引張特性、耐熱性、及び難燃性のいずれにおいても良好であった。また、実施例1〜4の絶縁組成物は、コンパウンド価格が低い。
比較例3の絶縁組成物は、難燃性において劣っていた。その理由は、すず酸亜鉛の含有量が過度に少ないためであると推測される。
比較例5の絶縁組成物は、難燃性において劣っていた。その理由は、エチレンビス(ペンタブロモベンゼン)の含有量が過度に少ないためであると推測される。
4.他の実施形態
以上、本開示の実施形態について説明したが、本開示は上述の実施形態に限定されることなく、種々変形して実施することができる。
Claims (1)
- 導体と、
前記導体を被覆する被覆層と、
を備える電線であって、
前記被覆層は、
100質量部の樹脂成分と、
2質量部以上20質量部以下のすず酸亜鉛と、
0.3質量部以上10質量部以下のエチレンビス(ペンタブロモベンゼン)と、
を含み、
前記樹脂成分は、(a)テトラフルオロエチレン−プロピレン共重合体、及び(b)エチレン−アクリル酸エチル共重合体を含み、
前記樹脂成分における前記(a)成分の質量比は70質量%以上98質量%以下であり、
前記樹脂成分における前記(b)成分の質量比は2質量%以上30質量%以下である絶縁組成物からなる電線。
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