CN113388183A - Method for manufacturing power transmission cable using non-halogen flame-retardant resin composition - Google Patents
Method for manufacturing power transmission cable using non-halogen flame-retardant resin composition Download PDFInfo
- Publication number
- CN113388183A CN113388183A CN202110194424.6A CN202110194424A CN113388183A CN 113388183 A CN113388183 A CN 113388183A CN 202110194424 A CN202110194424 A CN 202110194424A CN 113388183 A CN113388183 A CN 113388183A
- Authority
- CN
- China
- Prior art keywords
- layer
- resin composition
- power transmission
- transmission cable
- flame
- 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
- 239000003063 flame retardant Substances 0.000 title claims abstract description 71
- 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 title claims abstract description 66
- 230000005540 biological transmission Effects 0.000 title claims abstract description 43
- 229910052736 halogen Inorganic materials 0.000 title claims abstract description 38
- 150000002367 halogens Chemical class 0.000 title claims abstract description 38
- 239000011342 resin composition Substances 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 71
- 230000032683 aging Effects 0.000 claims abstract description 44
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 34
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 30
- 238000004132 cross linking Methods 0.000 claims abstract description 29
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 29
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 29
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 29
- 229920005601 base polymer Polymers 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004020 conductor Substances 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 14
- 238000012360 testing method Methods 0.000 claims description 14
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 11
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 3
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000000391 magnesium silicate Substances 0.000 abstract description 5
- 229910052919 magnesium silicate Inorganic materials 0.000 abstract description 5
- 235000019792 magnesium silicate Nutrition 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 82
- 239000000463 material Substances 0.000 description 16
- 239000011241 protective layer Substances 0.000 description 11
- 229910000000 metal hydroxide Inorganic materials 0.000 description 8
- 150000004692 metal hydroxides Chemical class 0.000 description 8
- 239000004711 α-olefin Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 229920000098 polyolefin Polymers 0.000 description 4
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 3
- 239000006087 Silane Coupling Agent Substances 0.000 description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000012792 core layer Substances 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical group O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- ZGEGCLOFRBLKSE-UHFFFAOYSA-N 1-Heptene Chemical compound CCCCCC=C ZGEGCLOFRBLKSE-UHFFFAOYSA-N 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229920005549 butyl rubber Polymers 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002964 rayon Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000779 smoke Substances 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 1
- FIYMNUNPPYABMU-UHFFFAOYSA-N 2-benzyl-5-chloro-1h-indole Chemical compound C=1C2=CC(Cl)=CC=C2NC=1CC1=CC=CC=C1 FIYMNUNPPYABMU-UHFFFAOYSA-N 0.000 description 1
- BRQMAAFGEXNUOL-UHFFFAOYSA-N 2-ethylhexyl (2-methylpropan-2-yl)oxy carbonate Chemical compound CCCCC(CC)COC(=O)OOC(C)(C)C BRQMAAFGEXNUOL-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229920003346 Levapren® Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 102220608658 Secreted phosphoprotein 24_H10A_mutation Human genes 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000003679 aging effect Effects 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
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 229910002026 crystalline silica Inorganic materials 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- LPRVNTWNHMSTPR-UHFFFAOYSA-M lithium;2-hydroxyoctadecanoate Chemical compound [Li+].CCCCCCCCCCCCCCCCC(O)C([O-])=O LPRVNTWNHMSTPR-UHFFFAOYSA-M 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid group Chemical group C(\C=C/C(=O)O)(=O)O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical class CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000003878 thermal aging Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical compound [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011787 zinc oxide 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
Images
Classifications
-
- 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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
-
- 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
- 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
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
-
- 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
- C08K2003/2224—Magnesium hydroxide
-
- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Physics & Mathematics (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Insulated Conductors (AREA)
- Manufacturing Of Electric Cables (AREA)
Abstract
A method for manufacturing a power transmission cable using a non-halogen flame-retardant resin composition, which has good heat aging characteristics even when steam-crosslinked. A method for producing a power transmission cable in which a sheath layer is crosslinked by contacting with water vapor, wherein the sheath layer (9) is composed of a non-halogen flame-retardant resin composition containing a base polymer and a flame retardant, and the flame retardant is any one of magnesium hydroxide alone, aluminum hydroxide alone, silica alone, a combination of magnesium hydroxide and aluminum hydroxide, and a combination of aluminum hydroxide and silica, and is contained in an amount of 50 parts by mass or more relative to 100 parts by mass of the base polymer. With this sheath layer, magnesium silicate is not formed even when steam crosslinking is performed with a steam pipe (240), and a decrease in the residual elongation after heat aging can be suppressed. Further, the power transmission cable can be efficiently manufactured without using a shield layer for suppressing the generation of magnesium silicate.
Description
Technical Field
The present invention relates to a method for producing a power transmission cable using a non-halogen flame-retardant resin composition.
Background
In order to reduce damage in the event of fire, cables used in railway vehicles and the like need to have characteristics such as flame retardancy and low smoke emission. In order to obtain high flame retardancy, materials obtained by adding halogen flame retardants such as chlorine and bromine to polyolefins have been used. However, these substances containing a large amount of halogen-based flame retardants generate a large amount of toxic and harmful gases during combustion, and also generate highly toxic gases
English. Under such circumstances, cables using a non-halogen material (halogen-free material) containing no halogen substance as the covering material are becoming popular from the viewpoints of safety in fire and reduction of environmental load.
For example, patent document 1 discloses a power transmission cable in which a base polymer containing an ethylene-vinyl acetate copolymer having a vinyl acetate content of 50 wt% or more and a non-halogen flame-retardant resin composition containing 100 parts by mass or more and 180 parts by mass or less of a metal hydrate and silica in total per 100 parts by mass of the base polymer are used as a sheath layer in order to achieve high flame retardancy and low smoke generation.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2016-100140
Disclosure of Invention
Problems to be solved by the invention
The present inventors have conducted research and development on a coating material for a power transmission cable, and have studied a resin composition having good properties as a non-halogen material as the coating material.
Particularly, in power transmission cables, it is required to maintain good flexibility for a long time. As an evaluation of the flexibility life of the power transmission cable, heat aging characteristics satisfying a standard defined in "heat aged residual elongation" are required based on a heat aging test.
In addition, as a method of crosslinking a sheath layer, which is an outermost coating material of a power transmission cable, when crosslinking is performed with heat, heat of steam may be used. In such a crosslinking method using heat of steam, in order to prevent deterioration due to direct contact of steam with the power transmission cable, a protective layer having good thermal conductivity may be provided on the outer side to perform crosslinking. In such a crosslinking method, a step of providing a protective layer on the outer side of the sheath layer and a step of tearing off the protective layer on the outer side of the sheath layer are required before and after crosslinking.
Therefore, if the steam can be directly contacted with the protective layer to carry out crosslinking, the process of arranging the protective layer outside the protective layer and the process of tearing off the protective layer outside the protective layer are not needed, and the production efficiency is improved.
However, when crosslinking is performed by bringing steam into direct contact with the jacket layer, there is a problem that deterioration due to direct contact with steam is caused by deterioration of heat aging characteristics due to an undesirable product, that is, the standard defined as "heat aging residual elongation" cannot be satisfied.
Accordingly, an object of the present invention is to provide a method for producing a power transmission cable using a non-halogen flame-retardant resin composition, which has excellent heat aging characteristics even in the case of using a crosslinking method in which direct steam contact is performed.
Means for solving the problems
[1] A method for manufacturing a power transmission cable using a non-halogen flame-retardant resin composition according to one embodiment of the present invention includes (a) a step of coating a core portion having a conductor and an insulating layer formed on the outer periphery of the conductor with a non-halogen flame-retardant resin composition forming a sheath layer, and (b) a step of crosslinking the sheath layer by contacting the sheath layer with water vapor. The sheath layer is composed of a non-halogen flame-retardant resin composition containing a base polymer and a flame retardant, the flame retardant is any one of magnesium hydroxide alone, aluminum hydroxide alone, silica alone, a combination of magnesium hydroxide and aluminum hydroxide, and a combination of aluminum hydroxide and silica, and the content of the flame retardant is 50 parts by mass or more per 100 parts by mass of the base polymer.
[2] In [1], the base polymer contains an ethylene vinyl acetate copolymer.
[3] In [1], the content of the flame retardant is 100 to 150 parts by mass relative to 100 parts by mass of the base polymer.
[4] In [1], the sheath layer has a tensile residual elongation of 75% or more after a heat aging test at 120 ℃ for 168 hours.
[5] A method for manufacturing a power transmission cable using a non-halogen flame-retardant resin composition according to one embodiment of the present invention includes: a step of forming an inner semiconductive layer, an insulating layer, and an outer semiconductive layer in this order from the inside of the outer periphery of a conductor, a step of forming a shield layer by winding a wire around the outer periphery of the outer semiconductive layer, a step of forming a pressing belt layer by winding a pressing belt around the outer periphery of the shield layer, and a step of forming a sheath layer around the pressing belt layer; the step of forming the sheath layer includes (a) a step of coating the outer periphery of the press belt layer with a non-halogen flame-retardant resin composition for forming the sheath layer, and (b) a step of crosslinking the sheath layer by contacting the sheath layer with water vapor, wherein the sheath layer is composed of a non-halogen flame-retardant resin composition containing a base polymer and a flame retardant, the flame retardant is any one of magnesium hydroxide alone, aluminum hydroxide alone, silica alone, a combination of magnesium hydroxide and aluminum hydroxide, and a combination of aluminum hydroxide and silica, and the content of the flame retardant is 50 parts by mass or more per 100 parts by mass of the base polymer.
Effects of the invention
According to the method for producing a power transmission cable using a non-halogen flame-retardant resin composition of one embodiment of the present invention, a power transmission cable having excellent heat aging characteristics can be produced even when a crosslinking method in which direct steam contact is used.
Drawings
Fig. 1 is a sectional view showing the constitution of a power transmission cable.
Fig. 2 is a schematic view showing a manufacturing apparatus of the power transmission cable.
Description of the symbols
1: a power transmission cable; 2: a conductor; 3: an inner semiconductive layer; 4: an insulating layer; 5: an outer semiconductive layer; 6: a semiconductive adhesive tape layer; 7: a shielding layer; 8: pressing the tape layer; 9: a sheath layer; 200: an extruder; 220: a screw; 221: a material inlet (hopper); 230: an extrusion head; 240: steam pipes (cross-linked pipes); c: a core.
Detailed Description
Hereinafter, a method for manufacturing the power transmission cable according to the present embodiment will be described. Fig. 1 is a sectional view showing the constitution of a power transmission cable. In the present embodiment, a method for manufacturing a power transmission cable shown in fig. 1 will be described as an example.
The power transmission cable shown in fig. 1 includes a conductor 2 formed of a stranded wire, an inner semiconductive layer 3 formed on the outer periphery of the conductor 2, an insulating layer 4 formed on the outer periphery of the inner semiconductive layer 3, an outer semiconductive layer 5 formed on the outer periphery of the insulating layer 4, a semiconductive tape layer 6 formed on the outer periphery of the outer semiconductive layer 5, a shield layer 7 formed on the outer periphery of the semiconductive tape layer 6, a pressing tape layer 8 formed on the outer periphery of the shield layer 7, and a sheath layer 9 formed on the outer periphery of the pressing tape layer 8.
First, the inner semiconductive layer 3, the insulating layer 4, and the outer semiconductive layer 5 are simultaneously extrusion-molded on the outer periphery of the conductor 2. The inner semiconductive layer 3, the insulating layer 4, and the outer semiconductive layer 5 may be formed by extrusion molding in this order.
The conductor 2 is formed by twisting bare wires made of a plurality of metal wires. The bare wire may be metal-plated, and for example, a wire such as a tin-plated annealed copper wire may be used. The conductor 2 transmits a high voltage of 7000V or more, for example.
The inner semiconductive layer 3 and the outer semiconductive layer 5 are made of a material having conductivity obtained by dispersing conductive powder such as carbon in rubber such as ethylene propylene rubber or butyl rubber. The inner semiconductive layer 3 and the outer semiconductive layer 5 are provided to relax concentration of an electric field between the insulating layer 4 and the conductor 2 and an electric field between the insulating layer 4 and the shield layer 7.
The insulating layer 4 is made of, for example, ethylene propylene rubber, vinyl chloride, cross-linked polyethylene, silicone rubber, fluorine-based material, or the like.
Next, a semiconductive tape layer 6 is formed by winding a semiconductive tape spirally around the outer circumference of the outer semiconductive layer 5 in the cable axial direction. As the semiconductive tape, for example, a base fabric or a nonwoven fabric woven from warp and weft yarns of nylon, rayon, PET, or the like is impregnated with a material in which conductive powder such as carbon is dispersed in rubber such as ethylene propylene rubber or butyl rubber. As the semiconductive tape, for example, a tape having a thickness of 0.1mm to 0.4mm and a width of 30mm to 70mm can be used. The semiconductive tape can be wound in an overlapping manner such that the tape width is 1/4 or more and 1/2 or less, for example.
Next, the wire is wound around the outer circumference of the semiconductive tape layer 6 in a spiral shape in the cable axial direction, thereby forming the shield layer 7. The wire is made of a conductive material such as tin-plated soft copper, and for example, a wire rod having a diameter of 0.4mm to 0.6mm can be used. The shield 7 is in use connected to ground.
Next, the pressing tape layer 8 is formed by spirally winding the pressing tape around the outer periphery of the shield layer 7 in the cable axial direction. As the pressing belt, for example, a belt made of plastic or rayon having a thickness of 0.03mm to 0.2mm and a width of 50mm to 90mm can be used.
The laminated body from the conductor 2 to the pressing tape layer 8 up to this point is referred to as a core C.
Next, the sheath layer 9 is formed by extrusion molding the non-halogen flame-retardant resin composition on the outer periphery of the core portion C (the pressing tape layer 8). Then, crosslinking of the sheath layer 9 is performed.
The non-halogen flame-retardant resin composition constituting the sheath layer 9 contains a base polymer (resin component) and a flame retardant (metal hydroxide, silica).
The base polymer contains, for example, an ethylene vinyl acetate copolymer (EVA) and an ethylene- α -olefin copolymer modified with maleic anhydride (hereinafter also simply referred to as "maleic acid-modified ethylene copolymer").
As the ethylene vinyl acetate copolymer (EVA) in the base polymer, one having a vinyl acetate content of 40 mass% or more can be used. By setting the vinyl acetate content to 40 mass% or more, the slag is firmer, and good flame retardancy and low fuming property can be obtained.
In the ethylene- α -olefin copolymer modified with maleic anhydride in the base polymer, α -olefin having 3 to 8 carbon atoms can be used as the α -olefin in consideration of flexibility of the cable. Examples of such an α -olefin include propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene, and 1-octene, and isomers may also be used. One kind of the α -olefin may be used, or two or more kinds may be used in combination.
As the base polymer, a styrene butadiene rubber may be added to an ethylene vinyl acetate copolymer (EVA) and an ethylene- α -olefin copolymer modified with maleic anhydride.
As flame retardants, metal hydroxides or silica can be used.
As the metal hydroxide, magnesium hydroxide or aluminum hydroxide may be used. As such a metal hydroxide, a metal hydroxide surface-treated with silane may be used. For example, magnesium hydroxide surface-treated with a silane coupling agent, or aluminum hydroxide surface-treated with a silane coupling agent may be used. By using a surface-treated product using a silane coupling agent, mechanical properties (tensile strength, elongation) are improved.
As the silica, either amorphous silica or crystalline silica may be used. This silica is used for solidification of slag during combustion and for improvement of mechanical properties. The silica is spherical in shape and has an average particle diameter of 0.05 μm to 1.0 μm. More preferably, the average particle diameter is 0.15 μm or more and 0.3 μm or less. By using such silica in combination with a metal hydroxide, a balance among flame retardancy, low fuming property, and mechanical properties can be achieved. In particular, by forming the spherical shape, the silica enters the gaps between the metal hydroxides, and the dispersibility of the metal hydroxides is improved. Further, by setting the average particle diameter of silica to 0.05 μm or more and 1.0 μm or less, the interaction with the polymer becomes appropriate, and the mechanical properties are improved. The average particle diameter of silica may be a value of the median diameter (μm) of the particle diameter D50 with a frequency cumulative particle size of 50%. The shape of the silica (whether it is spherical) can be confirmed by an electron microscope.
Here, in the present embodiment, as the flame retardant, any of (a1) magnesium hydroxide alone, (a2) aluminum hydroxide alone, (a3) silica alone, (a4) a combination of magnesium hydroxide and aluminum hydroxide, and (a5) a combination of aluminum hydroxide and silica can be used. The amount of the flame retardant to be added is 50 parts by mass or more, and more preferably 100 parts by mass or more and 150 parts by mass or less, based on 100 parts by mass of the base polymer.
By selecting the flame retardant from the above (a1) to (a5) and avoiding the use of magnesium hydroxide in combination with silica in this way, it is possible to suppress a decrease in the heat aged residual elongation even when steam crosslinking described later is performed. That is, the deterioration of the mechanical properties after the heat aging test can be suppressed. The heat aging test is understood as one of the accelerated tests, and the good characteristics after the heat aging test are an index capable of securing mechanical characteristics (e.g., flexibility) for a long period of time.
When magnesium hydroxide and aluminum hydroxide are used in combination in (a4), the ratio of aluminum hydroxide: magnesium hydroxide 40: 60-60: 40. this is because the stepwise dehydration method is more effective for suppressing the temperature rise and curing the slag in the combustion of the non-halogen flame-retardant resin composition. Since the dehydration initiation temperature of aluminum hydroxide is around 210 ℃ and the dehydration initiation temperature of magnesium hydroxide is around 280 ℃, stepwise dehydration occurs in the order of aluminum hydroxide and magnesium hydroxide, and inhibition of temperature rise of the jacket layer and solidification of the slag occur effectively.
Of the above flame retardants, magnesium hydroxide, aluminum hydroxide and silica contribute to flame retardancy and low fuming property, but magnesium hydroxide and aluminum hydroxide contribute more to flame retardancy, and silica contributes more to low fuming property due to solidification of the slag.
The non-halogen flame-retardant resin composition used for the power transmission cable may be blended with other polymers (other EVA, other polyolefin modified with maleic acid or the like, unmodified polyolefin, or the like), a crosslinking agent, a crosslinking assistant, a colorant, a lubricant, an antioxidant, and the like, as required.
For example, peroxides may also be used as crosslinking agents. In addition, carbon may also be used as a colorant. In addition, stearate compounds may also be used as lubricants. By blending a lubricant, the workability at the time of extrusion can be improved.
Fig. 2 is a schematic view showing a manufacturing apparatus of the power transmission cable. The single screw extruder 200 shown in fig. 2 includes a screw 220 and a material inlet 221 disposed in a cylinder. The non-halogen flame-retardant resin composition is charged from a material charging port (hopper) 221 as a material of the sheath layer 9. The non-halogen flame-retardant resin composition is melted, extruded from the extruder 200, and passes through the extrusion head 230 to be coated on the core C fed from the output machine. Next, the core C and the jacket layer 9 on the outer periphery thereof are crosslinked while passing through the inside of a steam pipe (crosslinking pipe) 240. Using such a continuous crosslinking apparatus, sheath layer 9 is directly contacted with water vapor to be crosslinked (crosslinked by passing through water vapor). For example, the crosslinking is carried out in a water vapor atmosphere at 150 ℃ to 180 ℃ for 5 minutes to 60 minutes. Operating in this manner, the power transmission cable 1 can be manufactured.
In this way, according to the method of manufacturing the power transmission cable 1 of the present embodiment, the composite of magnesium hydroxide and silica is not used as the flame retardant, but the flame retardant is selected from the above (a1) to (a5), so that the formation of magnesium silicate, which is an undesirable reaction product of magnesium hydroxide and silica generated when steam crosslinking is performed, can be avoided, and the decrease in residual elongation (%) after thermal aging can be suppressed.
As described above, according to the method for manufacturing a power transmission cable of the present embodiment, a power transmission cable using a non-halogen flame-retardant resin composition having excellent heat aging characteristics can be manufactured. Further, according to the method for manufacturing a power transmission cable of the present embodiment, it is possible to manufacture a power transmission cable efficiently without using a shield for suppressing the generation of an undesired reactant.
Here, in the power transmission cable according to the present embodiment, the outer diameter (diameter) is, for example, 30mm to 60mm, and the thickness of the sheath layer is, for example, 2mm to 4 mm.
The power transmission cable according to the present embodiment can be used, for example, as an extra-high voltage cable provided in a railway vehicle (hereinafter referred to as an extra-high voltage cable for a railway vehicle). The ultrahigh-voltage cable for a railway vehicle is disposed along a ceiling portion and a wall portion so as to be connected to, for example, a pantograph disposed on a ceiling of the railway vehicle and a multi-voltage switch disposed under a floor. Here, the extra high voltage is 7000V or more.
Examples
Hereinafter, a non-halogen flame-retardant resin composition used for the power transmission cable according to the present embodiment will be described in more detail based on examples.
The material name is:
1) EVA: levapren 600HV manufactured by Langshan corporation (VA amount: 60% by mass)
2) Acid-modified polyolefin: acid-modified ethylene-alpha-olefin copolymer "TAFMER MH 5040" manufactured by Mitsui Chemicals corporation "
3) Magnesium hydroxide: "MAGNIFIN H10A" (vinylsilane 0.8-. about.1.1 μm) manufactured by HUBER corporation
4) Aluminum hydroxide: "BF 013 STV" (silane 1.0 μm) made of Japanese light metal
5) Silicon dioxide: "CITYSTAR T120U" (spherical, average particle size 0.15 μm) manufactured by Elkem corporation
6) Tert-butyl peroxy-2-ethylhexyl carbonate: trigonox 117 manufactured by Nouroyn "
7) Triallyl isocyanate: "TAIC" made by Japan Kasei Kaisha "
8) Zinc oxide: made by Sakai chemistry "Zn Hua 3"
9) Mixed antioxidant: "AO-18" manufactured by ADEKA (AO20/412S 6/4)
10) Carbon: "FT carbon" manufactured by Asahi carbon Co., Ltd "
11) Lithium hydroxystearate: LS-6 manufactured by Nidong chemical industry Co Ltd "
12) Zinc stearate: EZ-101 manufactured by Nidong chemical industry Co., Ltd "
(examples 1 to 5)
A halogen-free flame-retardant resin composition was prepared by blending the components shown in Table 1, kneaded with a roll, and formed into a sheet having a thickness of 1 mm. For the formed sheet, steam crosslinking was performed using a crosslinking tube. Specifically, steam (water vapor) having a saturated water vapor pressure of 1MPa was brought into direct contact with the sheet (kneaded non-halogen flame-retardant resin composition), and crosslinking was performed at 180 ℃ for 10 minutes to obtain a steam-crosslinked sheet.
Comparative examples 1 to 3
The same procedures as in examples 1 to 5 were carried out except that the compounding ratio of the components was changed as shown in Table 1, to obtain steam-crosslinked sheets.
The blending amounts of the respective components shown in table 1 are expressed by parts by mass with respect to 100 parts by mass of the total base polymer.
[ Table 1]
With respect to the obtained sheet, mechanical properties before and after the heat aging test were evaluated by a tensile test based on the following ICE60811-1-1 standard and ICE60811-1-2 standard.
The obtained sheet was punched out in a dumbbell No. 6 shape to prepare test pieces having a reticle pitch of 20 mm. The test piece was pulled at a pull rate of 200mm/min, and the distance between the gauge lines after breaking was measured. The scribe line pitch after the fracture was obtained by determining the scribe line pitch attached to the test piece after the fracture. The elongation (%) before heat aging was determined by the following equation.
Elongation (%) before heat aging of 100X distance (mm) between marked lines after breaking/20 (mm)
The obtained sheet was exposed to an oven at 120 ℃ for 168 hours, and then punched out in a dumbbell No. 6 shape to prepare test pieces having a pitch of 20 mm. The test piece was pulled at a pull rate of 200mm/min, and the elongation at the tensile breaking point was measured. The elongation (%) after heat aging was determined by the following equation.
Elongation after heat aging (%) < 100X mark distance after breakage (mm)/20(mm)
Further, the residual elongation (%) after heat aging was determined by the following equation.
Residual elongation after heat aging (%)/elongation before heat aging (%)
The elongation (%) before heat aging and the residual elongation (%) after heat aging are shown in Table 1.
The samples having a residual elongation (%) after heat aging of 75% or more were regarded as "pass", and the samples having a residual elongation of less than 75% were regarded as "fail".
As shown in Table 1, the sheets of examples 1 to 5 all had residual elongations (%) of 75% or more after heat aging and good heat aging characteristics.
Specifically, in example 1, when a composite of (a5) aluminum hydroxide and silica was used as a flame retardant, the residual elongation (%) after heat aging was 75% or more, and the heat aging characteristics were good.
In example 2, when a composite of magnesium hydroxide and aluminum hydroxide (a4) was used as a flame retardant, the residual elongation (%) after heat aging was 75% or more, and the heat aging characteristics were good.
In example 3, when silica alone (a3) was used as a flame retardant, the residual elongation (%) after heat aging was 75% or more, and the heat aging characteristics were good.
In example 4, when magnesium hydroxide alone (a1) was used as a flame retardant, the residual elongation (%) after heat aging was 75% or more, and the heat aging characteristics were good.
In example 5, when (a2) alone was used as a flame retardant, the residual elongation (%) after heat aging was 75% or more, and the heat aging characteristics were good.
Further, in examples 1 to 5, the amount of the flame retardant added was 50 parts by mass or more per 100 parts by mass of the base polymer, and the amount of the flame retardant added was large, and in examples 1, 2, 4 and 5, in which the amount was 100 parts by mass or more per 100 parts by mass of the base polymer, the residual elongation (%) after heat aging was 90% or more, and the heat aging property was more excellent.
In comparative examples 1 to 3, in which a composite of magnesium hydroxide and silica was used as a flame retardant, the residual elongation (%) after heat aging was less than 75%, and the heat aging characteristics were poor. In these comparative examples, the residual elongation (%) after heat aging was low even when the amount of the flame retardant added was 100 parts by mass or more per 100 parts by mass of the base polymer.
Such a decrease in residual elongation (%) after heat aging is caused by the formation of magnesium silicate, which is an undesirable reactant of magnesium hydroxide and silica upon steam crosslinking.
Therefore, as shown in (a1) to (a5), the residual elongation (%) after heat aging can be improved and the heat aging characteristics can be improved by avoiding the use of magnesium hydroxide in combination with silica and blending a flame retardant.
Here, in the case of performing the steam crosslinking, in order to suppress the generation of an undesired reactant by steam, it is possible to cope with this by covering the jacket layer with a protective layer, performing the steam crosslinking, and then peeling the protective layer, but in this case, a step of forming the protective layer and a step of peeling are necessary, and the production efficiency is lowered.
On the other hand, according to the present embodiment, by adjusting the combination of flame retardants as described above, even if steam crosslinking is performed, an undesirable reaction product (magnesium silicate) is not generated, and it is possible to improve the production efficiency and suppress the reduction in the heat aged residual elongation.
The test piece used in the present example or the like corresponds to a sample obtained by peeling off the sheath layer of the power transmission cable and punching the same with the above dumbbell, for example.
(application example)
In the above embodiment, the power transmission cable is constituted by the plurality of laminated bodies shown in fig. 1, and may be constituted by an insulated wire having the conductor 2 and the insulating layer 4 provided around the conductor as a core layer and the sheath layer 9 provided around the conductor. Further, a plurality of insulated wires may be used as the core layer. As the sheath layer of the power transmission cable thus configured, the non-halogen flame-retardant resin composition can be used, and the sheath layer can be formed around the core layer in the same manner as in the above embodiment.
The present invention is not limited to the above-described embodiments and examples, and various modifications can be made without departing from the spirit thereof.
Claims (5)
1. A method for producing a power transmission cable using a non-halogen flame-retardant resin composition, comprising:
(a) a step of coating a core part having a conductor and an insulating layer formed on the outer periphery of the conductor with a non-halogen flame-retardant resin composition for forming a sheath layer, and
(b) a step of crosslinking the sheath layer by contacting the sheath layer with water vapor;
the sheath layer is composed of a non-halogen flame-retardant resin composition containing a base polymer and a flame retardant,
the flame retardant is any one of magnesium hydroxide alone, aluminum hydroxide alone, silica alone, a combination of magnesium hydroxide and aluminum hydroxide, and a combination of aluminum hydroxide and silica,
the content of the flame retardant is 50 parts by mass or more with respect to 100 parts by mass of the base polymer.
2. The method for manufacturing a power transmission cable using a non-halogen flame-retardant resin composition according to claim 1, wherein the base polymer contains an ethylene-vinyl acetate copolymer.
3. The method for manufacturing a power transmission cable using a non-halogen flame-retardant resin composition according to claim 1, wherein the content of the flame retardant is 100 parts by mass or more and 150 parts by mass or less with respect to 100 parts by mass of the base polymer.
4. The method for manufacturing a power transmission cable using a non-halogen flame-retardant resin composition according to claim 1, wherein the sheath layer has a tensile residual elongation of 75% or more after a heat aging test at 120 ℃ for 168 hours.
5. A method for producing a power transmission cable using a non-halogen flame-retardant resin composition, comprising:
a step of forming an inner semiconductive layer, an insulating layer and an outer semiconductive layer on the outer periphery of the conductor in this order from the inside,
a step of forming a shield layer by winding a wire around the outer circumference of the outer semiconductive layer,
a step of forming a pressing tape layer by winding a pressing tape around the outer periphery of the shield layer,
forming a sheath layer on an outer periphery of the pressing tape layer;
the process for forming the sheath layer includes:
(a) a step of coating the outer periphery of the press belt layer with a non-halogen flame-retardant resin composition for forming the sheath layer, and
(b) a step of crosslinking the sheath layer by contacting the sheath layer with water vapor;
the sheath layer is composed of a non-halogen flame-retardant resin composition containing a base polymer and a flame retardant,
the flame retardant is any one of magnesium hydroxide alone, aluminum hydroxide alone, silica alone, a combination of magnesium hydroxide and aluminum hydroxide, and a combination of aluminum hydroxide and silica,
the content of the flame retardant is 50 parts by mass or more with respect to 100 parts by mass of the base polymer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020-042060 | 2020-03-11 | ||
| JP2020042060A JP7565696B2 (en) | 2020-03-11 | 2020-03-11 | Method for manufacturing power transmission cable using halogen-free flame-retardant resin composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113388183A true CN113388183A (en) | 2021-09-14 |
Family
ID=77617221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110194424.6A Pending CN113388183A (en) | 2020-03-11 | 2021-02-20 | Method for manufacturing power transmission cable using non-halogen flame-retardant resin composition |
Country Status (2)
| Country | Link |
|---|---|
| JP (2) | JP7565696B2 (en) |
| CN (1) | CN113388183A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531287A (en) * | 2012-07-03 | 2014-01-22 | 日立电线株式会社 | Insulated wire for vehicle use and cable for vehicle use |
| CN103839622A (en) * | 2012-11-20 | 2014-06-04 | 日立金属株式会社 | Halogen-free crosslinked resin composition and insulated wire and cable using the same |
| CN104078140A (en) * | 2013-03-29 | 2014-10-01 | 日立金属株式会社 | Halogen- and phosphorus-free flame-retardant insulated wire and halogen- and phosphorus-free flame-retardant insulated cable |
| CN105061878A (en) * | 2012-11-20 | 2015-11-18 | 日立金属株式会社 | Peroxide crosslinked resin composition and electric wire and cable using same |
| US20160141073A1 (en) * | 2014-11-13 | 2016-05-19 | Hitachi Metals, Ltd. | Electric wire and cable |
| US20160148724A1 (en) * | 2014-11-20 | 2016-05-26 | Hitachi Metals, Ltd. | Power transmission cable using non-halogen flame-retardant resin composition |
| CN105623166A (en) * | 2014-11-20 | 2016-06-01 | 日立金属株式会社 | Halogen-free flame-retardant resin composition and high-voltage cable |
| CN108102207A (en) * | 2018-01-12 | 2018-06-01 | 合肥工业大学 | A kind of halogen-free flameproof thin-walled oil resistant cable insulating manufactured by multiple cross-linked technique and sheath and its manufacturing method and application |
| US20180158571A1 (en) * | 2016-12-02 | 2018-06-07 | Hitachi Metals, Ltd. | Insulated wire and cable using halogen-free flame-retardant resin composition |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4629836B2 (en) | 2000-07-19 | 2011-02-09 | 古河電気工業株式会社 | Insulated wire |
| JP5019651B2 (en) * | 2010-10-21 | 2012-09-05 | 古河電気工業株式会社 | Insulated wire and manufacturing method thereof |
| JP5907015B2 (en) * | 2012-09-10 | 2016-04-20 | 日立金属株式会社 | Railway vehicle wires and railway vehicle cables |
| JP6424748B2 (en) | 2015-06-11 | 2018-11-21 | 日立金属株式会社 | Halogen free flame retardant insulated wire and halogen free flame retardant cable |
| JP6681158B2 (en) | 2015-07-27 | 2020-04-15 | 日立金属株式会社 | Multi-layer insulated wire and multi-layer insulated cable |
-
2020
- 2020-03-11 JP JP2020042060A patent/JP7565696B2/en active Active
-
2021
- 2021-02-20 CN CN202110194424.6A patent/CN113388183A/en active Pending
-
2023
- 2023-12-18 JP JP2023212758A patent/JP2024023698A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531287A (en) * | 2012-07-03 | 2014-01-22 | 日立电线株式会社 | Insulated wire for vehicle use and cable for vehicle use |
| CN103839622A (en) * | 2012-11-20 | 2014-06-04 | 日立金属株式会社 | Halogen-free crosslinked resin composition and insulated wire and cable using the same |
| CN105061878A (en) * | 2012-11-20 | 2015-11-18 | 日立金属株式会社 | Peroxide crosslinked resin composition and electric wire and cable using same |
| CN104078140A (en) * | 2013-03-29 | 2014-10-01 | 日立金属株式会社 | Halogen- and phosphorus-free flame-retardant insulated wire and halogen- and phosphorus-free flame-retardant insulated cable |
| US20160141073A1 (en) * | 2014-11-13 | 2016-05-19 | Hitachi Metals, Ltd. | Electric wire and cable |
| US20160148724A1 (en) * | 2014-11-20 | 2016-05-26 | Hitachi Metals, Ltd. | Power transmission cable using non-halogen flame-retardant resin composition |
| CN105623166A (en) * | 2014-11-20 | 2016-06-01 | 日立金属株式会社 | Halogen-free flame-retardant resin composition and high-voltage cable |
| US20180158571A1 (en) * | 2016-12-02 | 2018-06-07 | Hitachi Metals, Ltd. | Insulated wire and cable using halogen-free flame-retardant resin composition |
| CN108102207A (en) * | 2018-01-12 | 2018-06-01 | 合肥工业大学 | A kind of halogen-free flameproof thin-walled oil resistant cable insulating manufactured by multiple cross-linked technique and sheath and its manufacturing method and application |
Non-Patent Citations (1)
| Title |
|---|
| 王澜: "《高分子材料》", 中国轻工业出版社, pages: 328 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7565696B2 (en) | 2024-10-11 |
| JP2021144839A (en) | 2021-09-24 |
| JP2024023698A (en) | 2024-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5659450B2 (en) | Non-halogen flame retardant wire / cable | |
| JP5286707B2 (en) | Flexible non-halogen wire | |
| JP4974041B2 (en) | Non-halogen wires, wire bundles and automotive wire harnesses | |
| JP2015046372A (en) | Shield-provided electrically insulated cable | |
| US20150030853A1 (en) | Crosslinkable halogen-free resin composition, crosslinked molded article, insulated wire and cable | |
| CN105670070B (en) | Halogen-free crosslinkable resin composition, crosslinked insulated wire and cable | |
| JP5907015B2 (en) | Railway vehicle wires and railway vehicle cables | |
| JP7103111B2 (en) | Non-halogen flame-retardant resin composition, insulated wires, and cables | |
| JP2007238845A (en) | Flame-retardant composition and electric wire | |
| JP7363557B2 (en) | Flame-retardant resin compositions, flame-retardant insulated wires and flame-retardant cables | |
| CN114155995B (en) | Insulated wire and cable | |
| CN113388183A (en) | Method for manufacturing power transmission cable using non-halogen flame-retardant resin composition | |
| JP2009275190A (en) | Flame retardant resin composition, insulated wire and wire harness | |
| JP2024025002A (en) | Non-halogen fire retardant resin composition, electric wire and cable | |
| WO2012005357A1 (en) | Photovoltaic power collection cable | |
| JP2016095993A (en) | Electric wire and cable | |
| CN111499950B (en) | Halogen-free resin composition, wire and cable | |
| JP2016095994A (en) | Electric wire and cable | |
| JP2016095992A (en) | Electric wire and cable | |
| JP2013136788A (en) | Flexible non-halogen electric wire | |
| CN111825939B (en) | Power supply cable using non-halogen flame-retardant resin composition | |
| CN109476883B (en) | Insulating resin composition and insulated wire | |
| JP2012099412A (en) | Aluminum wire | |
| JP2016095995A (en) | Electric wire and cable | |
| JP7221907B2 (en) | Wires and cables |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Tokyo, Japan Applicant after: Bomeilicheng Co.,Ltd. Address before: Tokyo, Japan Applicant before: HITACHI METALS, Ltd. |