Heat-conduction insulation cable sheath material and preparation method thereof

Abstract

The invention discloses a heat-conduction insulation cable sheath material and a preparation method thereof. The heat-conduction insulation cable sheath material is prepared from the following raw materials in parts by weight: 35-50 parts of linear low density polyethylene, 15-25 parts of COC resin, 8-14 parts of polyphenylene sulfide, 15-20 parts of nanometer titanium carbide, 10-15 parts of nanometer zirconium boride, 5-10 parts of silver powder, 6-12 parts of trimethyl pentanediol, 5-10 parts of hydrated magnesium silicate superfine powder, 3-5 parts of dilinoleic acid, 2.5-4.5 parts of ethylene bis(12-hydroxy)stearamide, 1-2 parts of stannous pyrophosphate, 4-6 parts of poly-1,4-butylene adipate glycol, 5-10 parts of glyceryl tribenzoate, 2-3 parts of aluminium hydroxy distearate, 1-2 parts of ethlenethiourea, 1-2 parts of octyl methoxycinnamate, 0.5-1 parts of octyl-3,5-di-tert-butyl-4-hydroxy-hydrocinnamate, and 5-7 parts of an auxiliary agent. The cable sheath material is high in thermal conductivity coefficient, good in thermal stability, resistant to high temperature and resistant to ageing, can still keep extremely good electrical insulation property and mechanical properties after working at a high temperature condition for a long time, is not aged and deformed, has the advantages such as corrosion resistance, wear resistance, fatigue resistance and the like, and is wide in application prospect.

Description

technical field [0001] The invention relates to a heat-conducting and insulating cable sheath material and a preparation method thereof, belonging to the field of cable materials. Background technique [0002] The cable jacket is the outermost layer of the cable, which protects the inner and outer conductors and insulation of the cable from the environment, climate, hydrolysis and other physical damage. At present, the sheath materials of wires and cables mainly include PE, PVC, various natural or synthetic elastomers, etc. Although the above-mentioned sheath material has good mechanical properties and electrical insulation properties, as well as excellent corrosion resistance, aging resistance, wear resistance and other properties, it has the disadvantage of poor thermal conductivity, and the heat will not be dissipated in time during work. As the temperature rises, there will be potential safety hazards such as aging of the insulating layer of the wire and cable or the sh...

AI Technical Summary

Problems solved by technology

Although the above-mentioned sheath material has good mechanical properties and electrical insulation properties, as well as excellent corrosion resistance, aging resistance, wear resistance and other properties, it has the disadvantage of poor thermal conductivity, and the heat will not be dissipated in time during work. As the temperature rises, there will be safety hazards such as aging of the insulating layer of the wire and cable or the sheathing of the power cable, melting and contact, resulting in a short circuit or even a fire.

Images