Modified high-flame-retardation weather-resistant polyurethane cable material and preparing method thereof

Abstract

The invention relates to the technical field of cable materials, in particular to a modified high-flame-retardation weather-resistant polyurethane cable material and a preparing method thereof. The modified high-flame-retardation weather-resistant polyurethane cable material comprises modified polyurethane elastomer, ethylene-vinyl ethylene copolymer, nitrile rubber, chlorinated polyethylene, antimony trioxide, calcium chloride, ethyl phosphoric acid diethyl ester, a lubricating agent, a dispersing agent, an antioxidant, a rat-proof master batch, a termite-proof master batch and an ultraviolet light absorber. The modified polyurethane elastomer is formed by anionic polyurethane of lateral chain band sulfonic group or / and carboxylic group, tetra-n-butyl titanate, organic solvent, deionized water and a catalyst. According to the preparing method of the modified high-flame-retardation weather-resistant polyurethane cable material, as the modified polyurethane elastomer is used as the main raw material, the modified polyurethane cable material prepared by the method has high flame retardation and weather resistance.

Description

technical field

[0001] The invention relates to the technical field of cable materials, in particular to a modified polyurethane cable material with high flame resistance and high weather resistance and a preparation method thereof. Background technique

[0002] With the rapid development of economy, cables are widely used in communication, electric power and other fields. However, since cables are combustible substances, with the frequent occurrence of electrical fire accidents, the flame retardant problem of cables has attracted the attention of countries all over the world. When the cable burns, it releases a large amount of smoke and toxic and corrosive gas, which is a dangerous factor in a fire. It hinders people's safe evacuation and fire fighting work during a fire, causing serious loss of life and property.

[0003] In recent years, there are more and more fires caused by the aging of cables. Therefore, the improvement of the weather resistance of cables has become ...