Polypropylene resin composition for insulation of power cables with excellent whitening resistance and article prepared using the same

Disclosed are a resin composition for an insulating layer of a power cable, which can satisfy excellent flexibility and electrical properties as a resin composition for an insulating layer of a recyclable power cable, and molded articles using the same. The present invention provides the polypropyle...

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Bibliographische Detailangaben
Hauptverfasser:	SEO KYO UN, YOON BO SANG, KIM YOUN KYOUNG
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BASIC ELECTRIC ELEMENTS CABLES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CONDUCTORS ELECTRICITY INSULATORS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	Disclosed are a resin composition for an insulating layer of a power cable, which can satisfy excellent flexibility and electrical properties as a resin composition for an insulating layer of a recyclable power cable, and molded articles using the same. The present invention provides the polypropylene resin composition for the insulating layer of the power cable, which contains: 80 to 95 parts by weight of a propylene block copolymer in which ethylene-propylene rubber (EPR) is dispersed in a propylene-ethylene random copolymer; 5 to 20 parts by weight of a polyolefin elastomer (POE); and 0.001 to 1 part by weight of a β-nucleating agent, and molded articles using the same. 재활용이 가능한 전력 케이블의 절연층용 수지 조성물로서 우수한 유연 특성과 전기적 특성을 만족시키는 전력 케이블의 절연층용 수지 조성물과 이를 이용한 성형품이 개시된다. 본 발명은 프로필렌-에틸렌 랜덤 공중합체 내에 에틸렌-프로필렌 고무(EPR)가 분산된 프로필렌 블록 공중합체 80 내지 95 중량부; 폴리올레핀 엘라스토머(POE) 5 내지 20 중량부; 및 β-핵제 0.001 내지 1 중량부;를 포함하는 전력 케이블의 절연층용 폴리프로필렌 수지 조성물과 이를 이용한 성형품을 제공한다.