High temperature-resistant modified polyethylene moble sheath material

Abstract

The invention relates to a cable material and specifically relates to a high temperature-resistant modified polyethylene moble sheath material. The material is prepared from the following raw materials in parts by weight: 12-14 parts of polytetrafluoroethylene, 24-28 parts of medium density polyethylene, 15-18 parts of polyvinylidene chloride, 7-9 parts of EVA (Ethylene Vinyl-Acetate copolymer), 1-2 parts of microcrystalline wax, 10-12 parts of nanosilicon dioxide, 4-6 parts of sodium metasilicate, 2-3 parts of glass fiber, 1-2 parts of liquid paraffin, 2-3 parts of styrene, 13-16 parts of trioctyltrimellitate (TOTM), 1-3 parts of aluminate coupling agent DL-411, 20-24 parts of china clay powder, 16-19 parts of tributyl citrate, and 14-16 parts of auxiliaries; the insulating material has all the advantages of the raw materials such as the medium density polyethylene, the polyvinylidene chloride and the polytetrafluoroethylene, and the prepared material is firm and flexible, excellent in mechanical properties, excellent in chemical corrosion resistance, resistant to aging and high temperatures, good in electrical insulating property and long in service life; besides, the material can be widely applied to fabricating various cable sheath insulating materials, and thus is wide in market requirement prospect.

Description

technical field [0001] The invention relates to a cable material, in particular to a high-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, ther...

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.