High strength and flame retardant cable insulation sheath material and preparation method thereof

Abstract

The invention discloses a high strength and flame retardant cable insulation sheath material and a preparation method thereof. The cable insulation sheath material comprises 22-35 parts of PVC (polyvinyl chloride), 15-25 parts of polyether-ether-ketone resin, 16-22 parts of trioctyl trimellitate, 10-15 parts of nano bauxite, 15-22 parts of silicon micropowder, 10-20 parts of ethylene propylene rubber, 11-15 parts of copper sulfate, 33-36 parts of liquid wax, 10-20 parts of carbon fiber, 3-9 parts of aluminium naphthenate, 6-10 parts of a stabilizer, 2-6 parts of an antiager, 5-8 parts of a flame retardant and 2-6 parts of a plasticizer. According to the invention, PVC and ethylene propylene rubber are adopted as the main body, and polyether-ether-ketone resin, trioctyl trimellitate, nano bauxite, silicon micropowder, copper sulfate, liquid wax, carbon fiber and aluminium naphthenate are added to endow the obtained cable sheath material with high flame retardancy, the burning distance is short, and the self-extinguishing time is short. The preparation process is simple, and is easy to operate.

Description

technical field [0001] The invention relates to the technical field of cable sheath production, in particular to a high-strength flame-resistant cable insulation sheath material and a preparation method thereof. Background technique [0002] The cable jacket is a layer of rubber or rubber synthetic sleeve that protects the cable from damage caused by the natural environment and external factors, and can insulate to ensure that foreign objects are not damaged. Cables are the basic bridges for building power systems. They are distributed in various environmental conditions. Some areas are extremely cold, the temperature difference between day and night is large, and ultraviolet radiation is strong. In some areas, high temperature, heavy rainfall, and high temperature cause rapid aging of the sheath and long service life. Short, prone to cracking, and flammable, it poses a greater threat to people's lives. Although a variety of cable sheath materials have been prepared at pres...

AI Technical Summary

Problems solved by technology

[0003] As we all know, the cable sheath is a layer of rubber wrapped around the cable core to insulate and protect the inner conductor. The quality of the cable sheath depends on the insulation performance, fire resistance and mechanical properties of the sheath, while Due to the unreasonable matching of the traditional 105°C cable sheath, the insulation performance is average compared with other types of sheaths. After the sheath is put into actual production, it is prone to leakage or even breakdown by high voltage, resulting in sheath burning. damage or cause a fire, endangering the safety of people's lives and property