Modified polyvinyl chloride cable sheath material with low-temperature impact resistance

Abstract

The invention relates to a cable material, specifically to a modified polyvinyl chloride cable sheath material with low-temperature impact resistance. The material comprises the following raw materials by weight: 23 to 26 parts of SG-3 polyvinyl chloride, 14 to 18 parts of isotactic polypropylene, 20 to 23 parts of EVA, 4 to 5 parts of low density polyethylene, 2 to 3 parts of zinc oxide, 6 to 8 parts of montmorillonite powder, 12 to 14 parts of meerschaum powder, 4 to 6 parts of diatomite, 1 to 2 parts of sodium carbonate, 15 to 18 parts of poly(propyleneglycol sebacate), 1 to 2 parts of di-n-octyltin bis(isooctyl mercaptoacetate), 3 to 5 parts of zinc oxide, 23 to 25 parts of carbon black 220, 1.2 to 1.5 parts of ethylene bisstearamide, 13 to 16 parts of tributyl citrate and 14 to 16 parts of an auxiliary agent. According to the invention, the advantages of the raw materials like SG-3 polyvinyl chloride, isotactic polypropylene and EVA are combined together, the prepared material has the advantages of flexibility, wear resistance, resistance to high temperature ageing, low-temperature impact resistance, resistance to chemical attack, safety and reliability in utilization, wide applicability to preparation of a variety of cable sheath insulating materials and wide market demands and prospects.

Description

technical field [0001] The invention relates to a cable material, in particular to a low-temperature impact-resistant modified polyvinyl chloride cable sheath material and a preparation method thereof. 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 ...

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.