Low-temperature-resistant modified polyethylene cable sheath material

Abstract

The invention relates to a cable material, in particular to a low-temperature-resistant modified polyethylene cable sheath material. The material contains the following raw materials by weight: 34-38 parts of low-density polyethylene, 5-8 parts of polyvinyl acetate, 20-23 parts of poly(1-butene), 6-8 parts of slag powder, 10-15 parts of zeolite powder, 4-5 parts of magnesium carbonate, 3-4 parts of 3-aminopropyltrimethoxysilane, 1-2 parts of accelerant TETD (Tetraethylthiuram Disulfide), 0.5-1.5 parts of accelerant CBS (N-Cyclohexyl-2-Benzothiazole Sulfonamide), 1-2 parts of silane coupling agent KH550, 1-2 parts of benzo[d]imidazole-2-thiol, 6-9 parts of nanometer silicon dioxide, 12-15 parts of rapeseed oil, 1.3-1.7 parts of accelerant TMTD (Tetramethylthiuram Disulfide), 13-17 parts of tributyl citrate and 14-16 parts of auxiliaries. The advantages of the raw materials, such as the low-density polyethylene, the poly(1-butene) and the polyvinyl acetate are combined by the insulating material. The prepared material has the characteristics of flexibility, wear resistance, low-temperature crack resistance, chemical corrosion resistance, great insulating properties and safety and reliability in use, can be widely used for manufacturing various cable sheath insulating materials, and has a wide market demand prospect.

Description

technical field [0001] The invention relates to a cable material, in particular to a low temperature resistant modified polyethylene 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 safety, there...

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.