WO2012111985A2 - Câbles comprenant une couche isolante contenant une résine non réticulée - Google Patents

Câbles comprenant une couche isolante contenant une résine non réticulée Download PDF

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Publication number
WO2012111985A2
WO2012111985A2 PCT/KR2012/001160 KR2012001160W WO2012111985A2 WO 2012111985 A2 WO2012111985 A2 WO 2012111985A2 KR 2012001160 W KR2012001160 W KR 2012001160W WO 2012111985 A2 WO2012111985 A2 WO 2012111985A2
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WO
WIPO (PCT)
Prior art keywords
mixture
resin
insulating layer
ethylene
weight
Prior art date
Application number
PCT/KR2012/001160
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English (en)
Korean (ko)
Other versions
WO2012111985A3 (fr
Inventor
김웅
남진호
김형준
유익현
Original Assignee
엘에스전선 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 엘에스전선 주식회사 filed Critical 엘에스전선 주식회사
Publication of WO2012111985A2 publication Critical patent/WO2012111985A2/fr
Publication of WO2012111985A3 publication Critical patent/WO2012111985A3/fr

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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
    • 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
    • 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
    • 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
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/10—Homopolymers or copolymers of propene
    • 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
    • H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation

Definitions

  • the present invention relates to a cable comprising an insulating layer containing a non-crosslinked resin.
  • polyethylene has a melting point of 100 to 125 ° C., and thus it cannot satisfy the continuous use temperature of 90 ° C. of the cable prescribed in most international standards such as IEC and ICEA.
  • crosslinked polyethylene crosslinked with polyethylene in various ways has been used as a component of the insulating layer.
  • the present invention is to provide a cable having excellent mechanical properties while including an insulating layer containing a non-crosslinked resin.
  • a cable according to an aspect of the present invention for achieving the above object includes at least one conductor and an insulating layer surrounding the conductor.
  • the insulating layer comprises a mixture of polypropylene resin and ethylene-propylene copolymer resin, wherein the mixture is characterized in that 60 to 70% by weight of the total weight of the mixture is eluted in the dissolution test using a boiling xylene solution.
  • the dissolution test is performed by eluting a mixture of polypropylene resin and ethylene-propylene copolymer resin in a boiling xylene solution for 6 hours, and the xylene solution has a boiling point of 138 to 144 ° C.
  • the cable of the present invention does not use crosslinked polyethylene, which is conventionally used as a component of the insulating layer, the cost increase due to the crosslinking process and the problem of deterioration of insulation performance due to crosslinking byproducts do not occur. It satisfies the required mechanical properties.
  • FIG. 1 shows a cross-sectional view of a cable of a typical structure.
  • Figure 1 shows the structure of a commonly used insulated cable.
  • the insulated cable includes at least one conductor 11, an inner semiconducting layer 12, an insulating layer 13, an outer semiconducting layer 14, a shielding layer 15, and a sheath layer 16. It has a structure arranged in turn.
  • the insulating layer 13 surrounding the at least one conductor comprises a mixture of polypropylene resin and ethylene-propylene copolymer resin. Characterized in that.
  • the mixture according to the present invention contains 30 to 40% by weight of polypropylene resin having a melting point of 155 to 165 ° C and 60 to 70% by weight of ethylene-propylene copolymer resin having a melting point of 100 to 140 ° C.
  • the mixture of the polypropylene resin and the ethylene-propylene copolymer resin according to the present invention has the property that 60 to 70% by weight of the total weight of the mixture is eluted in the dissolution test using a boiling xylene solution.
  • a mixture of polypropylene resin and ethylene-propylene copolymer resin is eluted in a boiling xylene solution for about 6 hours, and 60 to 70% by weight of the total weight of the mixture is eluted.
  • a resin having a melting point lower than the boiling point of xylene is eluted, and the eluted resin has a low isotacticity. That is, the higher the weight percent of the eluted resin, the more the resin having a low stereoregularity is contained in the mixture of the polypropylene resin and the ethylene-propylene copolymer resin.
  • the mixture of polypropylene resin and ethylene-propylene copolymer resin containing a lot of resin having low stereoregularity can exhibit good elongation rate because of slow crystallization rate in the cooling process included in the cable extrusion process.
  • the boiling point of the xylene is 138 to 144 ° C.
  • xylene ortho-xylene, meta-xylene, para-xylene or a mixture of two or more thereof can be used.
  • the mixture according to the present invention has a melting point of 30 to 40% by weight of polypropylene resin having a melting point of 155 ⁇ 165 °C and 60 to 70% by weight of an ethylene-propylene copolymer resin having a melting point of 100 ⁇ 140 °C in a molten state using a twin screw extruder It is produced by mechanical mixing.
  • the mixture according to the present invention may also be prepared through sequential polymerization of the polypropylene resin and the ethylene-propylene.
  • a polymerization reaction of propylene and a copolymerization reaction of ethylene-propylene were sequentially performed to prepare a mixture of polypropylene resin having a melting point of 162 ° C. and an ethylene-propylene copolymer having a melting point of 117 ° C. (Basell, Q200F). At this time, 31% by weight of the polypropylene resin, 69% by weight of the ethylene-propylene copolymer is produced by the sequential copolymerization reaction.
  • Each cable including an insulating layer made of a mixture of Example 1, Example 2, Comparative Example 1 and Comparative Example 2 is prepared.
  • This cable typically has a structure as shown in FIG.
  • the measured results of the mechanical properties (tensile strength, tensile elongation), mechanical properties (tensile strength, elongation residual) and extruder resin pressure after heating of the manufactured cables are summarized in Table 2 below. Is as follows.
  • the cable shall have a tensile strength of at least 1.27 kgf / mm 2 and a tensile elongation of at least 200% when measured at a tensile speed of 250 mm / min in accordance with IEC 60811-1-1.
  • the mechanical properties of the cables were measured after heat aging at 150 ° C. for 168 hours. At this time, the tensile strength residual ratio and elongation residual ratio should be at least 75%.
  • Example 1 Example 2 Comparative Example 1 Comparative Example 2 Room temperature tensile strength (kgf / mm 2 ) 2.2 2.0 1.9 1.7 Room Temperature Tensile Elongation (%) 580 640 105 510 Tensile strength residual after heating (%) 85 84 120 Melting % Elongation after heating 90 85 400 Melting
  • Comparative Example 2 a mixture of polypropylene resin and ethylene-propylene copolymer resin having low stereoregularity (72% by weight of the mixture of polypropylene resin and ethylene-propylene copolymer resin eluting in a boiling xylene solution) As used, the mechanical properties (tensile strength residual, elongation residual) after heating were not good.
  • Examples 1 and 2 of the present invention showed excellent results not only in mechanical properties at room temperature (normal tensile strength and room temperature tensile elongation) but also in mechanical properties (tensile strength residual and elongation residual) after heating. This result is due to the use of a mixture of polypropylene resin and ethylene-propylene copolymer resin having an optimum stereoregularity.
  • the insulating material composition according to the present invention is applicable to all insulated cables of various structures including at least one conductor and an insulating coating layer surrounding the conductor.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Organic Insulating Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention concerne des câbles comprenant un conducteur et/ou une couche isolante entourant le conducteur. La couche isolante comprend un mélange d'une résine de polypropylène et d'une résine de copolymère d'éthylène-propylène. 60 à 70 % en poids du mélange par rapport à son poids total sont élués dans un test d'élution employant une solution de xylène bouillant.
PCT/KR2012/001160 2011-02-18 2012-02-16 Câbles comprenant une couche isolante contenant une résine non réticulée WO2012111985A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20110014787 2011-02-18
KR10-2011-0014787 2011-02-18

Publications (2)

Publication Number Publication Date
WO2012111985A2 true WO2012111985A2 (fr) 2012-08-23
WO2012111985A3 WO2012111985A3 (fr) 2012-12-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/001160 WO2012111985A2 (fr) 2011-02-18 2012-02-16 Câbles comprenant une couche isolante contenant une résine non réticulée

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KR (3) KR102121072B1 (fr)
WO (1) WO2012111985A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102038709B1 (ko) * 2013-05-15 2019-10-30 한국전력공사 전력 케이블
KR101957049B1 (ko) * 2017-10-11 2019-03-11 한화토탈 주식회사 전력 케이블 절연체용 폴리프로필렌 수지
KR20220050035A (ko) 2020-10-15 2022-04-22 한화토탈 주식회사 내전압 특성이 우수한 절연체용 폴리올레핀 수지 조성물 및 그로부터 제조된 성형품
JP2022065628A (ja) 2020-10-15 2022-04-27 ハンファ トータル ペトロケミカル カンパニー リミテッド 耐電圧特性に優れた絶縁体用ポリオレフィン樹脂組成物およびそれにより製造された成形品
AU2022323375A1 (en) 2021-08-04 2024-02-22 Beijing Research Institute Of Chemical Industry, China Petroleum & Chemical Corporation Flexible polypropylene modified insulation material, preparation method therefor, and application thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4221882A (en) * 1979-01-31 1980-09-09 Exxon Research & Engineering Co. High impact melt-flowable dual continuum melt mixed polymer blends of polypropylene, polyethylene, and ethylene-propylene rubber
EP0360475A2 (fr) * 1988-09-14 1990-03-28 Bridgestone Australia Limited Elastomère thermoplastique pour moulage par injection
US6710131B2 (en) * 2001-11-07 2004-03-23 Indian Petrochemicals Corporation Limited Melt processible thermoplastic polyolefin blends for car bumpers and other articles and a process for the preparation thereof
US20100282492A1 (en) * 2007-12-18 2010-11-11 Borealis Technology Oy Cable layer of modified soft polypropylene

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2618464B2 (ja) * 1989-01-24 1997-06-11 古河電気工業株式会社 発泡絶縁電線
JPH052938A (ja) * 1991-06-25 1993-01-08 Furukawa Electric Co Ltd:The 発泡絶縁電線の製造方法、およびその方法で得られた発泡絶縁電線
ATE456139T1 (de) * 2006-07-10 2010-02-15 Borealis Tech Oy Kabelschicht auf der basis von polypropylen mit hoher elektrischer ausfall-spannungsfestigkeit
KR100971595B1 (ko) * 2007-10-29 2010-07-20 엘에스전선 주식회사 선박용 고강도 발포체 케이블
JP5183365B2 (ja) * 2008-08-27 2013-04-17 日本ポリエチレン株式会社 非架橋電線用ポリエチレン樹脂材料およびそれを用いた電線・ケーブル
JP5420662B2 (ja) * 2009-07-07 2014-02-19 株式会社フジクラ 発泡電線及びこれを有する伝送ケーブル

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4221882A (en) * 1979-01-31 1980-09-09 Exxon Research & Engineering Co. High impact melt-flowable dual continuum melt mixed polymer blends of polypropylene, polyethylene, and ethylene-propylene rubber
EP0360475A2 (fr) * 1988-09-14 1990-03-28 Bridgestone Australia Limited Elastomère thermoplastique pour moulage par injection
US6710131B2 (en) * 2001-11-07 2004-03-23 Indian Petrochemicals Corporation Limited Melt processible thermoplastic polyolefin blends for car bumpers and other articles and a process for the preparation thereof
US20100282492A1 (en) * 2007-12-18 2010-11-11 Borealis Technology Oy Cable layer of modified soft polypropylene

Also Published As

Publication number Publication date
WO2012111985A3 (fr) 2012-12-13
KR20120095309A (ko) 2012-08-28
KR20200060306A (ko) 2020-05-29
KR102201366B1 (ko) 2021-01-11
KR20190011297A (ko) 2019-02-01
KR102121072B1 (ko) 2020-06-10

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