KR970021237A

KR970021237A - Flame retardant polyolefin resin composition for wire coating

Info

Publication number: KR970021237A
Application number: KR1019950034470A
Authority: KR
Inventors: 김연철; 허만생
Original assignee: 황선두; 삼성종합화학 주식회사
Priority date: 1995-10-09
Filing date: 1995-10-09
Publication date: 1997-05-28

Abstract

본 발명의 전선피복용 난연성 폴리올레핀 수지 조성물은 밀도(23℃)가 0.900∼0.925g/㎤이고 용융지수(190℃, 2.16kg)가 0.1∼4.0g/10분인 폴리에틸렌과 용융수지가 0.1∼4.0g/10분이고 공단량체 함량이 5∼30중량%인 에틸렌공중합체를 사용하며, 이들 기초 수지는 전체 수지 조성물에 대하여 40∼60중량%가 사용된다. 폴리에틸렌은 기초수지에 대하여 40∼70중량%로 사용되고, 에틸렌공중합체는 기초 수지에 대하여 30∼60중량%로 사용된다. 본 발명에서는 전체 수지 조성물에 대하여 약 0.1∼0.3중량%의 산화방지제, 금속수산화물인 무기난연제와 삼산화안티몬, 적인 등의 난연조제가 약 35.0∼55.0중량%, 0.5∼3.0중량%의 활제 및 2.0∼4.5중량%의 카본블랙이 사용된다.The flame retardant polyolefin resin composition for wire coating according to the present invention has a polyethylene having a density (23 ° C.) of 0.900 to 0.925 g / cm 3 and a melt index (190 ° C., 2.16 kg) of 0.1 to 4.0 g / 10 minutes and a melt resin of 0.1 to 4.0 g. Ethylene copolymers having a / 10 min and comonomer content of 5 to 30 wt% are used, and these base resins are used at 40 to 60 wt% based on the total resin composition. Polyethylene is used at 40 to 70% by weight based on the base resin, and ethylene copolymer is used at 30 to 60% by weight based on the base resin. In the present invention, about 0.1 to 0.3% by weight of the antioxidant, flame retardant aids such as metal hydroxide inorganic flame retardant and antimony trioxide, red, etc. are about 35.0 to 55.0% by weight, 0.5 to 3.0% by weight of lubricant and 2.0 to 4.5% by weight of carbon black is used.

Description

Flame retardant polyolefin resin composition for wire coating

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims

Linear low density polyethylene with a density (23 ° C) of 0.900 to 0.925 g / cm 3 and melt index (190 ° C, 2.16 kg) of 0.1 to 4.0 g / min, and a melt of 0.1 to 4.0 g / min and a comonomer content of 5 to 30 40 to 60% by weight of a base resin consisting of an ethylene copolymer which is% by weight; 35 to 55% by weight of an inorganic flame retardant which is a metal hydroxide; 0.1 to 0.3% by weight of 2,2'-oxamido bis-ethyl-3- (3,5-di-tert-butyl-4-hydroxyphenyl) -propionate as an antioxidant; 0.5 to 3.0% by weight of a lubricant consisting of zinc stearate and calcium stearate; And carbon black 2.0 to 4.5 wt%; Flame retardant polyolefin resin composition for electric wire coating comprising a.

The flame retardant polyolefin resin composition for wire coating according to claim 1, wherein the base resin is composed of 40 to 70% by weight of linear low density polyethylene and 60 to 30% by weight of ethylene copolymer.

The flame retardant polyolefin resin composition according to claim 1, wherein the inorganic flame retardant is selected from the group consisting of magnesium hydroxide, aluminum hydroxide and calcium hydroxide.

The electric wire according to claim 1, wherein the carbon black has a particle size of 20 mm or less, a pH of 3.0 to 8.0, a surface area of 80 to 50 m 2 / g, and a DBP absorbency of 100 to 200 cc / 100 g. Flame retardant polyolefin resin composition for coating.

The flame retardant polyolefin resin composition according to claim 3, wherein the inorganic flame retardant further comprises antimony trioxide or red phosphorus as a flame retardant aid.

※ Note: The disclosure is based on the initial application.