Cable insulation layer material with good heat stability and excellent mechanical property

Abstract

The invention discloses a cable insulation layer material with the good heat stability and the excellent mechanical property. The cable insulation layer material is prepared from, by weight, 50-80 parts of polyethylene, 10-20 parts of ethylene vinyl acetate, 15-20 parts of modified polypropylene, 1-3 parts of polydimethylsiloxane with vinyl as the end group, 0.5-1 part of benzoyl peroxide, 1-2 parts of dien, 0.4-1.2 parts of triallyl cyanurate, 1-2 parts of dibutyltin dilaurate, 0.8-1.4 parts of styryl-N-phenylaniline, 1-2 parts of 3,5-tertiary butyl-4-hydroxy cinnamic acid, 0.8-1.5 parts of tricresyl phosphite (2,4-di-tert-butylphenyl) ester, 1-2 parts of sorbitol, 1-2 parts of hydroxyl silicone oil, 1-2 parts of magnesium stearate, 1-2 parts of zinc stearate, 3-7 parts of polyurethane hot melt adhesives and 20-40 parts of a composite filler. The cable insulation layer material is good in heat stability, good in mechanical performance and long in service life.

Description

technical field [0001] The invention relates to the technical field of insulating layers for cables, in particular to an insulating layer material for cables with good thermal stability and excellent mechanical properties. Background technique [0002] With the rapid development of the economy, the demand for cable insulation materials is increasing, and the requirements are getting higher and higher. Traditional cable materials are facing huge challenges. The insulation layers of traditional cables are generally plastic materials. And when it is affected by heat energy, mechanical energy, light energy and radiation energy during use, the thermal stability and mechanical properties of the plastic cannot meet the requirements, resulting in corrosion of other components inside the cable insulation layer, and the cable cannot operate normally. At present, the thermal stability is good. , good mechanical properties, and long service life of plastic materials for insulating layer...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the economy, the demand for cable insulation materials is increasing, and the requirements are getting higher and higher. Traditional cable materials are facing huge challenges. The insulation layers of traditional cables are generally plastic materials. And when it is affected by heat energy, mechanical energy, light energy and radiation energy during use, the thermal stability and mecha