Modified polyvinyl chloride cable sheath material

Abstract

The invention relates to a cable material, and particularly relates to a modified polyvinyl chloride cable sheath material. The modified polyvinyl chloride cable sheath material is prepared from the following raw materials in parts by weight: 25-28 parts of polyvinyl chloride, 12-15 parts of calcium carbonate powder, 10-12 parts of EVA (ethylene-vinyl acetate), 4-6 parts of ACR impact modifier, 5-8 parts of tribasic lead sulfate, 3-5 parts of glass fiber, 3-5 parts of calcium chloride, 2-3 parts of cuprous chloride, 5-8 parts of diatom powder, 4-5 parts of bentonite powder, 1-4 parts of silane coupling agent KH550, 3-4 parts of sodium tetraborate, 20-25 parts of tributyl citrate and 14-16 parts of additive. The modified polyvinyl chloride cable sheath material combines the advantages of the raw materials such as polyvinyl chloride and EVA; the properties of a conventional polyvinyl chloride blending material are improved; the prepared material is flexible, firm, dampproof, water-tolerant and long in service life, resists chemical corrosion and low-temperature ageing, can be widely applied to the production of various cable sheath insulating materials and has good mechanical property and wide market requirement prospect.

Description

technical field [0001] The invention relates to a cable material, in particular to a 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 safety, therefore, it is urgent t...

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.