Insulated cable sheath material for high-voltage cable

Abstract

The invention discloses an insulated cable sheath material for a high-voltage cable. The insulated cable sheath material is prepared from raw materials in parts by weight as follows: 50-60 parts of EPDM rubber, 40-50 parts of methyl vinyl silicone rubber, 30-40 parts of butyl rubber, 150-170 parts of a filling reinforcing agent, 2-6 parts of an aluminium-zirconium coupling agent, 2-4 parts of a cross-linking agent, 1-3 parts of a lubricating agent, 2-4 parts of an antioxidant and 2-6 parts of an anti-ultraviolet absorbent, wherein the filling reinforcing agent is prepared from components in parts by weight as follows: 20-28 parts of starch composite vermiculite powder, 10-20 parts of nano talcum powder, 12-20 parts of nano zeolite powder, 15-25 parts of calcined kaolin, 50-70 parts of fly ash and 20-40 parts of magnesium hydroxide. The insulated cable sheath material for the high-voltage cable has high density which can reach 1705-1748 kg/m<3>, and is good in waterproof performance, long in service life, excellent in mechanical property and free of halogen and environmental pollution.

Description

technical field [0001] The invention relates to the technical field of cable sheaths, in particular to an insulating cable sheath material for high-voltage cables. Background technique [0002] Sheath material is the main application field of insulating materials. At present, with the continuous development of the communication field, the market demand for cable materials is increasing, and the performance requirements for cable materials are also getting higher and higher, such as halogen-free cable materials, High-voltage insulating cable materials, inner and outer shielding cable materials, etc. Most of the cable materials produced in China are ordinary PVC cable materials, which are not only poor in density and water resistance, but also pollute the environment and damage people's health. [0003] In view of the defects in the above prior art, it is necessary to further improve it to make it more practical, so as to meet the actual use conditions. Contents of the inve...

AI Technical Summary

Problems solved by technology

Most of the cable materials produced in China are ordinary PVC cable materials, which are not only poor in density and water resistance, but also pollute the environment and damage people's health.