Novel special polyethylene cable sheath formula

Abstract

The invention discloses a novel special polyethylene cable sheath formula. The novel special polyethylene cable sheath formula comprises, by weight, 10-15 parts of low-density polyethylene, 12-16 parts of polystyrene, 16-20 parts of silicon dioxide, 9-12.5 parts of calcium carbonate, 11-14 parts of zinc oxide, 10-17 parts of montmorillonite powder, 13-20 parts of ceramic hollow microspheres, 20-21 parts of aluminum silicate, 5-8 parts of polypropylene adipate, 18.6-20.9 parts of poly acid ammonium, 12-30 parts of pentaerythritol, 30-40 parts of antimony trioxide micro-crosslinking resin, 26-35 parts of flame retardant, 30-36 parts of flame retardant synergist, 15-20 parts of antioxidant, 17-22 parts of a lubricating agent, 14-26 parts of chlorinated rubber, 11-19 parts of phenolic resin, 8-20 parts of chlorinated paraffin, 13-15 parts of tributyl phosphate, 6-8 parts of zinc borate, 22-33 parts of aluminum borate and 50-60 parts of a lubricating agent. On the basis of flexibility, abrasion resistance, tearing resistance and other characteristics, the material has the characteristics of excellent high-temperature resistance, radiation protection and the like and is particularly suitable for special cable sheath materials in aerospace aviation.

Description

technical field [0001] The invention relates to a new formula of special polyethylene cable sheath. Background technique [0002] With the development of the economy, the places where cables need to be used have become diversified, and there are more stringent and diverse requirements for the performance indicators of cable sheath materials, such as insulation, tensile strength, service temperature, flame retardant performance and other indicators There are strict requirements, and continuous improvement of the performance of sheath materials is an urgent need for economic and social development. Traditional sheath materials often have poor flame retardancy, poor chemical stability, high temperature deformation, poor mechanical properties, and short service life. And other problems, bring a lot of inconvenience to the actual use, and even threaten people's life and property safety, therefore, it is urgent to change the original sheath material formula, improve material perfo...

AI Technical Summary

Problems solved by technology

[0002] With the development of the economy, the places where cables need to be used have become diversified, and there are more stringent and diverse requirements for the performance indicators of cable sheath materials, such as insulation, tensile strength, service temperature, flame retardant performance and other indicators There are strict requirements, and continuous improvement of the performance of sheath materials is an urgent need for economic and social development. Traditional sheath materials often have poor flame retardancy, poor chemical stability, high temperature deformation, poor mechanical properties, and short service life. And other problems, bring a lot of inconvenience to the actual use, and even threaten the safety of people's lives and property. Therefore, it is urgent to change the original sheath material formula and improve the material performance to meet the diverse needs of the cable market.