High-performance cable sheath material for building engineering and preparation method of high-performance cable sheath material

Abstract

The invention discloses a high-performance cable sheath material for building engineering and a preparation method of the high-performance cable sheath material. The high-performance cable sheath material is prepared from 22 to 35 parts of methyl vinyl phenyl raw silicone rubber, 15 to 25 parts of linear low density polyethylene, 16 to 22 parts of trioctyl trimellitate, 10 to 15 parts of kaolin, 15 to 22 parts of calcined clay, 10 to 20 parts of hydrogenated butadiene-acrylonitrile rubber, 11 to 15 parts of dibutyl maleate, 33 to 36 parts of organic silicon resin, 10 to 20 parts of nitrocellulose, 3 to 9 parts of ethylene-chlorotrifluoroethylene copolymer, 6 to 10 parts of stabilizer, 2 to 6 parts of antiager, 5 to 8 parts of fire retardant and 2 to 6 parts of plasticizer. According to thehigh-performance cable sheath material for the building engineering, disclosed by the invention, the methyl vinyl phenyl raw silicone rubber and the hydrogenated nitrile-butadiene rubber are used asa main body, and the linear low density polyethylene, the trioctyl trimellitate, the kaolin, the calcined clay, the dibutyl maleate, the organic silicon resin, the nitrocellulose and the ethylene-chlorotrifluoroethylene copolymer are added, so that the obtained cable sheath material has the advantages of high flame retardant performance, short burning distance and short self-extinguish time; in addition, 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 cable sheath material for high-performance construction engineering 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 found in various environmental conditions. In some parts of the country, there is high temperature, large temperature difference between day and night, and strong ultraviolet radiation. In some areas, high temperature, heavy rainfall, high temperature and other reasons cause the sheath to have fast aging performance and service life. It is short, prone to cracking, and flammable, posing a great threat to people's life safety. At present, although ...

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