Halogen-free flame retardant polyethylene cable material and preparation method thereof

Abstract

The invention relates to a halogen-free flame retardant polyethylene cable material and a preparation method thereof. The cable material is characterized by being made of the following raw materials by weight part: 34-36 of high density polyethylene, 12-14 of linear low density polyethylene, 3-4 of zirconium diboride, 2-3 of titanium diboride, 12-14 of an ethylene-methyl acrylate copolymer (EMA 1209AC), 45-48 of attapulgite, 24-26 of sepiolite, 1-2 of an ECHO.A thiadiazole derivative, 3-4 of zinc stearate, 1-2 of an accelerator DTDM, 1-2 of an anti-aging agent OD, 5-8 of stearic acid monoglyceride butyral, 2-3 of N-2-(aminoethyl)-3-aminopropyl trimethoxysilane, 2-3 of isopropyl distearoyloxy aluminate, 1-2 of an antioxidant DSTP, 1-2 of diphenylamine, 4-6 of didodecanol ester, 5-8 of butadiene, 12-14 of zinc borate, and 6-8 of modified diatomite. The ethylene-methyl acrylate copolymer involved in the invention has excellent adhesiveness, and the strength of the cable material is greatly improved. The cable material provided in the invention has the advantages of high temperature resistance, halogen-free and flame retardant properties, high oxygen index, good heat and sound insulation, and strong impact load absorption ability, etc.

Description

technical field [0001] The invention belongs to the technical field of cable materials, and more specifically relates to a halogen-free flame-retardant polyethylene cable material and a preparation method thereof. Background technique [0002] Wire and cable materials are mainly made of resin materials, fillers, plasticizers, anti-aging agents, flame retardants, antioxidants, etc. The formula raw materials are mainly concentrated in some common ingredients, which leads to low technical indicators of cable materials or Problems such as high cost, such as low volume resistivity, high temperature resistance, low temperature resistance, flame retardancy, insulation, etc., cannot meet the requirements of cable manufacturers for higher electrical properties of insulating grade sheath materials. Contents of the invention [0003] The purpose of the present invention is to provide a kind of halogen-free flame-retardant polyethylene cable material and preparation method thereof, th...

AI Technical Summary

Problems solved by technology

[0002] Wire and cable materials are mainly made of resin materials, fillers, plasticizers, anti-aging agents, flame retardants, antioxidants, etc. The formula raw materials are mainly concentrated in some common ingredients, which leads to low technical indicators of cable materials or Problems such as high cost, such as low volume resistivity, high temperature resistance, low temperature resistance, flame retardancy, insulation, etc. cannot meet the requirements of cable manufacturers for higher electrical properties of insulating grade sheath materials