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WO2018151420A1 - Composition d'isolation pour câble haute tension, et câble comprenant une couche d'isolation constituée de celle-ci - Google Patents

Composition d'isolation pour câble haute tension, et câble comprenant une couche d'isolation constituée de celle-ci Download PDF

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Publication number
WO2018151420A1
WO2018151420A1 PCT/KR2018/000586 KR2018000586W WO2018151420A1 WO 2018151420 A1 WO2018151420 A1 WO 2018151420A1 KR 2018000586 W KR2018000586 W KR 2018000586W WO 2018151420 A1 WO2018151420 A1 WO 2018151420A1
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parts
weight
content
resin
composition
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English (en)
Korean (ko)
Inventor
주동욱
김인하
박찬웅
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LS Cable and Systems Ltd
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LS Cable and Systems Ltd
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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
    • H01B3/307—Other macromolecular compounds
    • 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
    • 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 atoms other than carbon or hydrogen
    • C08L23/0853—Ethene vinyl acetate copolymers
    • 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
    • C08L23/12—Polypropene
    • 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
    • C08L23/16—Ethene-propene or ethene-propene-diene copolymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/003—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K21/00—Fireproofing materials
    • C09K21/02—Inorganic materials
    • 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
    • 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
    • H01B7/02—Disposition of insulation

Definitions

  • the present invention relates to a cable comprising an insulating composition for a high voltage cable and an insulating layer formed therefrom. Specifically, the present invention satisfies the high insulation resistance characteristics required for high voltage cables and at the same time has a high degree of flexibility in conflict with the insulation composition having excellent properties such as oil resistance, abrasion resistance, heat resistance, flame resistance, and the like formed from A cable comprising a layer is provided.
  • High-voltage cable for electric vehicles corresponds to 150 °C class 600V, and there are products of various specifications depending on the cross-sectional area of the conductor.
  • EVA ethylene vinyl acetate
  • POE polyolefin elastomer
  • the volume resistance of an insulator required by the ISO 6722-1 standard is 10 9 ⁇ ⁇ mm
  • the volume resistance of the insulator required by the LV 216 standard is 10 13 ⁇ ⁇ mm
  • insulators using ethylene vinyl acetate (EVA) resin having a high vinyl acetate (VA) content or polyolefin elastomer (POE) having a low melting point can satisfy the volume resistance of the insulator required by the LV 216 standard in order to secure conventional flexibility. If the material has a high melting point (Tm) to satisfy the volume resistance, the insulation resistance may be improved, but the flexibility deteriorates, making it difficult to apply as an electric vehicle battery cable product.
  • EVA ethylene vinyl acetate
  • POE polyolefin elastomer
  • the automotive cable should satisfy the oil resistance characteristics for various oils, but when the resin of the insulation composition is changed to ensure insulation resistance and flexibility of the insulator, oil resistance, flame retardancy, etc. are greatly affected, and crosslinking according to resin Mechanical properties such as abrasion resistance, heat resistance, etc. are greatly influenced by the method and the degree of crosslinking, and it is very difficult for all these properties to meet the LV 216 standard.
  • an object of the present invention is to provide a cable comprising an insulating composition and an insulating layer formed therefrom satisfying the characteristics such as excellent oil resistance, wear resistance, heat resistance, flame retardancy required by the LV 216 standard.
  • An insulation composition for a high voltage cable comprising a base resin and an additive, wherein the base resin comprises polypropylene resin, polyolefin elastomer, ethylene propylene diene rubber, and ethylene vinyl acetate resin grafted with maleic anhydride,
  • the insulating layer formed from the insulating composition provides an insulating composition having a volume resistance of more than 10 13 ⁇ ⁇ mm.
  • the content of the polypropylene resin is 12 to 28 parts by weight
  • the content of the polyolefin elastomer is 25 to 50 parts by weight
  • the content of the ethylene propylene diene rubber is 20 to 50 parts by weight
  • the content of the ethylene vinyl acetate resin grafted with maleic anhydride is 5 to 18 parts by weight.
  • the content of the polypropylene resin is 16 to 24 parts by weight
  • the content of the polyolefin elastomer is 30 to 45 parts by weight
  • the content of the ethylene propylene diene rubber is 30 to 40 parts by weight.
  • the content of the ethylene vinyl acetate resin grafted with maleic anhydride is 8 to 15 parts by weight.
  • the polypropylene resin has a melting point (Tm) of 140 to 145 ° C and specific gravity of 0.860 to 0.880
  • the polyolefin elastomer has a melting point (Tm) of 90 to 100 ° C and specific gravity of 0.890 to 0.910, insulation To provide a composition.
  • the ethylene propylene diene rubber has a specific gravity of 0.870 to 0.890 and a Mooney viscosity (ML1 + 4 (125 ° C.)) of 20 to 40, providing an insulation composition.
  • the additive provides an insulation composition, characterized in that it comprises one or more additives selected from the group consisting of flame retardants, crosslinking aids, antioxidants and lubricants.
  • the flame retardant includes magnesium hydroxide or aluminum hydroxide, and based on 100 parts by weight of the base resin, the content of the flame retardant is 80 to 105 parts by weight, to provide an insulation composition.
  • the content of the flame retardant provides an insulation composition, characterized in that 85 to 95 parts by weight based on 100 parts by weight of the base resin.
  • the crosslinking aid comprises a cross-linking multifunctional organic monomer of the base resin, the content of the crosslinking aid provides an insulating composition, characterized in that 2 to 5 parts by weight based on 100 parts by weight of the base resin. .
  • the insulation composition for a high voltage cable according to the present invention has a superior effect of satisfying the high insulation resistance required by the LV 216 standard and satisfying a high degree of flexibility by applying a base resin containing a specific resin at a specific compounding ratio. Indicates.
  • the insulation composition for a high voltage cable of the present invention is applied to the base resin containing a specific resin in a specific compounding ratio, and through the application of a specific flame retardant, crosslinking method, crosslinking agent, etc. excellent oil resistance, wear resistance, heat resistance, flame resistance It shows an excellent effect of satisfying such characteristics.
  • FIG. 1 schematically illustrates a cross-sectional structure of one embodiment of a high voltage cable comprising an insulating layer formed from an insulating composition according to the present invention.
  • the present invention relates to an insulation composition for high voltage cables.
  • the insulating composition according to the present invention includes a base resin and a flame retardant, a crosslinking aid, and the like dispersed in the resin, and may further include other additives such as antioxidants and lubricants.
  • the base resin includes a blending resin of polypropylene (PP) resin, polyolefin elastomer (POE) resin, ethylene propylene diene rubber (EPDM) and ethylene vinyl acetate (EVA) resin grafted with maleic anhydride. can do.
  • PP polypropylene
  • POE polyolefin elastomer
  • EPDM ethylene propylene diene rubber
  • EVA ethylene vinyl acetate
  • the polypropylene (PP) resin has a high melting point (Tm), which is excellent in insulation resistance, oil resistance, and the like, and may include a propylene homopolymer and / or a propylene copolymer, and the propylene homopolymer may have a total monomer weight.
  • Tm high melting point
  • polypropylene is meant by polymerization of at least 99% by weight, preferably at least 99.5% by weight of propylene.
  • the propylene copolymer is propylene and ethylene or ⁇ -olefin having 4 to 12 carbon atoms, for example, 1-butene, 1-pentene, 4-methyl-1-pentene, 1-hexene, 1-octene, 1-decene, Comonomers selected from 1-dodecene and combinations thereof, preferably copolymers with ethylene. This is because copolymerization of propylene and ethylene shows hard and flexible properties.
  • the propylene copolymer may include a random propylene copolymer and / or a block propylene copolymer, and the random propylene copolymer refers to a propylene copolymer in which an propylene monomer and another olefin monomer are arbitrarily alternately arranged.
  • the polypropylene (PP) resin may have a melting point (Tm) of 140 to 145 ° C and a specific gravity of 0.860 to 0.880. If the melting point of the polypropylene (PP) resin is less than 140 °C or specific gravity is less than 0.860, the insulation resistance characteristics of the insulating composition, mechanical properties such as wear resistance, heat resistance, etc. may be insufficient, while melting point is more than 145 °C or 0.880 specific gravity If exceeded, the flexibility of the insulating composition may be greatly reduced.
  • Tm melting point
  • specific gravity 0.860 to 0.880
  • the content of the polypropylene (PP) resin may be 12 to 28 parts by weight, preferably 16 to 24 parts by weight based on 100 parts by weight of the base resin, when the content of the polypropylene (PP) resin is less than 12 parts by weight Insulation resistance properties of the insulating composition, mechanical properties such as wear resistance, heat resistance and the like may be insufficient, while if greater than 28 parts by weight, the flexibility of the insulating composition of the insulating composition may be greatly reduced.
  • the polyolefin elastomer (POE) may further improve insulation resistance, oil resistance, and the like of the insulation composition, and may have a melting point (Tm) of 90 to 100 ° C. and specific gravity of 0.890 to 0.910. If the melting point of the polyolefin elastomer (POE) is less than 90 °C or specific gravity is less than 0.890, the insulation resistance characteristics of the insulating composition, mechanical properties such as wear resistance, heat resistance, oil resistance, etc. may be insufficient, while the melting point is more than 100 °C or specific gravity If it is more than 0.910, the flexibility, cold resistance, and the like of the insulating composition may be greatly reduced.
  • Tm melting point
  • the content of the polyolefin elastomer (POE) may be 25 to 50 parts by weight, preferably 30 to 45 parts by weight based on 100 parts by weight of the base resin, and the insulation composition when the content of the polyolefin elastomer (POE) is less than 25 parts by weight Insulation resistance properties, oil resistance, etc. may be insufficient, whereas when more than 50 parts by weight, flexibility, cold resistance, etc. of the insulation composition may be greatly reduced.
  • the ethylene propylene diene rubber (EPDM) may further improve flexibility, cold resistance, and the like of the insulating composition, and may have a specific gravity of 0.870 to 0.890, and a Mooney viscosity (ML1 + 4 (125 ° C.)) of 20 to 40.
  • the specific gravity of the ethylene propylene diene rubber (EPDM) is less than 0.870 or the Mooney viscosity (ML1 + 4 (125 ° C.)) is less than 20
  • the insulation properties of the insulating composition, mechanical properties such as wear resistance, heat resistance, etc. may be insufficient.
  • the specific gravity is greater than 0.890 or the Mooney viscosity (ML1 + 4 (125 ° C.)) is greater than 40, the flexibility, flexibility, cold resistance, etc. of the insulating composition may be insufficient.
  • the content of the ethylene propylene diene rubber (EPDM) may be 20 to 50 parts by weight, preferably 30 to 40 parts by weight based on 100 parts by weight of the base resin, and the content of the ethylene propylene diene rubber (EPDM) is 20 parts by weight. If less than, flexibility, cold resistance, etc. of the insulating composition may be lowered, whereas if it is more than 50 parts by weight, the mechanical properties such as insulation resistance characteristics, wear resistance, heat resistance and the like of the insulating composition may be significantly reduced.
  • the ethylene vinyl acetate (EVA) resin grafted with maleic anhydride may improve the compatibility of the base resin and the inorganic flame retardant to improve the flame retardancy and mechanical properties of the insulating composition.
  • the amount of the maleic anhydride-grafted ethylene vinyl acetate (EVA) resin may be 5 to 18 parts by weight based on 100 parts by weight of the base resin, and the maleic anhydride-grafted ethylene vinyl acetate (EVA) resin If the content is less than 5 parts by weight, the flame retardancy, flexibility, cold resistance, etc. of the insulating composition may be lowered, whereas if it is more than 18 parts by weight, the mechanical properties such as insulation resistance characteristics, wear resistance, heat resistance, etc. of the insulating composition may be significantly reduced. .
  • the flame retardant dispersed in the base resin may improve the flame retardancy of the insulating composition, and may include, for example, metal hydroxides such as magnesium hydroxide and aluminum hydroxide, and to improve dispersibility in the base resin. It may be surface treated with a hydrophobic material such as silane.
  • the content of the flame retardant may be 80 to 105 parts by weight, preferably 85 to 95 parts by weight based on 100 parts by weight of the base resin. If the content of the flame retardant is less than 80 parts by weight, the flame retardancy of the insulating composition may be insufficient, whereas if it is more than 105 parts by weight, the mechanical properties such as insulation resistance characteristics, wear resistance and the like of the insulating composition may be greatly reduced.
  • the crosslinking aid may be added for irradiation crosslinking of the base resin, and may include, for example, a polyfunctional organic monomer, and its content may be 2 to 5 parts by weight based on 100 parts by weight of the base resin.
  • the degree of crosslinking of the base resin may be significantly lower than the insulation resistance properties, mechanical properties such as wear resistance, heat resistance, etc. In this case, flexibility, cold resistance, etc. of the insulating composition may be lowered.
  • an antioxidant may be further added to ensure long-term heat resistance of the insulating composition, and the lubricant may be further added to improve compatibility of the base resin with other additives.
  • FIG. 1 schematically illustrates a cross-sectional structure of one embodiment of a high voltage cable comprising an insulating layer formed from an insulating composition according to the present invention.
  • the cable according to the invention may comprise a conductor 10 and an insulation layer 20 formed around the conductor 10 and formed from the insulation composition described above.
  • the conductor 10 is preferably a copper stranded wire formed by combining fine wires of copper material in order to secure flexibility of the cable, and the conductor 10 has a nominal cross-sectional area and a thickness of the insulating layer 20. Can be appropriately selected by those skilled in the cable art.
  • the cable specimen was prepared by preparing an insulating composition by mixing at 150 ° C. for 30 minutes using a 3L kneader facility with the composition shown in Table 1 below, and then forming an insulating layer using a 45 mm extruder.
  • Conductor wire 6SQ was applied to the conductors in the preparation of the cable specimens, and irradiation crosslinking was performed after extrusion when forming an insulation layer from the insulation composition.
  • the unit of the content shown in Table 1 below is parts by weight, and a part of the additives commonly added is omitted.
  • Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Resin 1 17 19 23 17 30 19 19 17 23 Resin 2 42 34 33 58 26 26 34 42 33 Resin 3 31 35 35 15 35 35 35 31 Resin 4 10 12 9 10 9 20 12 10 9 Resin 5 35 Additives1 90 90 90 90 90 120 90 90 Additive2 3 3 3 3 3 3 3 3 Dose 5 3 5 5 5 5 5 5 5 5
  • Resin 1 Polypropylene (melting point: 141 ° C; specific gravity: 0.870)
  • Resin 2 polyolefin elastomer (melting point: 97 ° C; specific gravity: 0.902)
  • Resin 3 Ethylene propylene diene rubber (specific gravity: 0.880; Mooney viscosity (ML1 + 4 (125 ° C)): 21 ⁇ 29)
  • Resin 4 Ethylene vinyl acetate grafted with maleic anhydride
  • Resin 5 Ethylene vinyl acetate (melting point: 62 ° C; vinyl acetate content: 33 wt%)
  • Additive 1 Magnesium hydroxide coated with vinyl silane (BET specific surface area: 4.0 ⁇ 6.0 m2 / g)
  • the cable specimens of each of Examples and Comparative Examples were soaked in a beaker containing gasoline for 20 hours at room temperature, and then taken out, and the cable outer diameter was measured after 30 minutes. If the outer diameter after immersion exceeds 15% of the increased diameter compared to the outer diameter before immersion, it is less than the standard.
  • Insulation resistance was measured for each of the cable specimens of Examples and Comparative Examples according to the LV 216 standard. Insulation resistance measurement method is to comply with ISO 6722-1, but with 70% 1% saline instead of 70 °C water, the measured insulation resistance should exceed 10 13 ⁇ ⁇ mm.
  • Tensile strength at 2% elongation was measured for each of the cable specimens of the Examples and Comparative Examples using a UTM facility. The level of flexibility is determined by comparing the tensile strength value at the time of 2% elongation of the prescription meeting the existing ISO standard.
  • each cable specimen according to the example and the comparative example was suspended according to the conductor size according to the conductor size, stayed for 4 hours in the oven at -40 °C, and wound around the rod of the specified standard to see if cracks occurred. Check it. If no cracking occurs, no breakdown shall occur during the application of a voltage of 1 kV in water for one minute.
  • Example Comparative example One 2 3 One 2 3 4 5 6 Oil resistance ⁇ 15% 8.6 7.5 8.3 6.8 8.8 9.2 - - 13.8 Insulation Resistance ⁇ mm 8.41E + 13 7.24E + 13 9.72E + 13 7.68E + 13 1.17E + 14 - - - 1.22E + 12 flexibility 0.283 0.280 0.291 0.452 0.473 0.434 - - 0.322 Heat resistance ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ - ⁇ ⁇ Cold resistance No crack No crack No crack No crack No crack No crack No crack No crack No crack No crack No crack - No crack
  • the cable specimen of Comparative Example 1 was improved in oil resistance due to excessive polyolefin elastomer content in the insulating layer, but deteriorated in flexibility by insufficient content of ethylene propylene diene rubber, cable specimen of Comparative Example 2
  • the oil resistance of the cable was improved due to the excessive amount of polypropylene resin contained in the silver insulation layer.
  • the oil resistance was unstable after crosslinking, resulting in poor heat resistance.
  • Insufficient content of ethylene vinyl acetate resin grafted with maleic anhydride included in the flexibility decreased, and the cable specimen of Comparative Example 4 was improved in flame retardant due to the excessive flame retardant content, but cracks occurred in the insulation layer during cold resistance evaluation.
  • the cable specimens of Examples 1 to 3 according to the present invention satisfy all of the high insulation resistance characteristics and flexibility in conflict with the requirements of the LV 216 standard, and other properties such as oil resistance, heat resistance, and cold resistance. It was confirmed to be excellent.

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Abstract

La présente invention concerne une composition d'isolation pour câble haute tension, et un câble comprenant une couche d'isolation constituée de la composition. En particulier, la présente invention concerne une composition d'isolation qui satisfait des caractéristiques de résistance d'isolation élevée requises pour un câble haute tension et satisfait simultanément un niveau élevé de flexibilité dans une relation de compromis avec celle-ci, et qui présente d'excellentes propriétés telles qu'une résistance à l'huile, une résistance à l'usure, une résistance à la chaleur et une résistance à la flamme. La présente invention concerne également un câble comprenant une couche d'isolation constituée de la composition d'isolation.
PCT/KR2018/000586 2017-02-20 2018-01-12 Composition d'isolation pour câble haute tension, et câble comprenant une couche d'isolation constituée de celle-ci Ceased WO2018151420A1 (fr)

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KR10-2017-0022506 2017-02-20
KR1020170022506A KR20180096171A (ko) 2017-02-20 2017-02-20 고전압 케이블용 절연 조성물 및 이로부터 형성된 절연층을 포함하는 케이블

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024022526A1 (fr) * 2022-07-29 2024-02-01 江苏亨通高压海缆有限公司 Procédé de préparation de caoutchouc isolant à base d'epdm et utilisation de caoutchouc isolant à base d'epdm
WO2025112331A1 (fr) * 2023-11-30 2025-06-05 南方电网科学研究院有限责任公司 Composite de polypropylène, son procédé de préparation et son utilisation

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102817107B1 (ko) * 2020-05-20 2025-06-05 엘에스전선 주식회사 절연 조성물 및 이를 이용하여 형성된 전력 케이블
KR102620352B1 (ko) * 2021-11-08 2024-01-03 (주)티에스씨 고내열성 및 고유연성을 가지며 블루밍 현상이 발생되지 않는 산업용 케이블

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KR20130094404A (ko) * 2012-02-16 2013-08-26 엘에스전선 주식회사 유연성, 내마모성 및 난연성이 우수한 전선용 수지 조성물
KR20140007622A (ko) * 2012-07-09 2014-01-20 주식회사 경신전선 알루미늄 도체를 위한 피복 조성물 및 이를 이용하여 제조된 전선 및 케이블
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