High-performance urban rail cable sheathing material

Abstract

The invention discloses a high-performance urban rail cable sheathing material. The high-performance urban rail cable sheathing material comprises main materials and auxiliary materials, wherein the main materials comprise butadiene-acrylonitrile rubber and chlorinated cis-butadiene rubber; the auxiliary materials comprise zinc oxide, an activating agent mercuric oxide, barium oxide, stearic acid, methylthiuram disulfide, an accelerator DTDM (4,4'-Dithiodimorpholine), ethylene thiourea, tribasic lead sulfate, dioctyl phthalate, microcrystalline wax, an anti-aging agent 4040, an anti-aging agent 4040NA, an anti-aging agent 445, high-wear-resisting carbon black, semi-enhanced carbon black, talcum powder, calcined pottery clay and calcium carbonate; the main materials are put into an open mill to be mixed uniformly and the mixing temperature is 40-52 DEG C; then the auxiliary materials are added to be mixed uniformly; the obtained mixed materials are put into a flat plate vulcanization machine to carry out vulcanization to obtain the high-performance urban rail cable sheathing material; the vulcanization temperature is 141-147 DEG C and the vulcanization time is 1-5 minutes. According to the high-performance urban rail cable sheathing material disclosed by the invention, the physical and mechanical properties are good, the combustion smoke is less and the flame retardant efficiency is good.

Description

technical field [0001] The invention relates to the technical field of high-performance urban rail cable sheath materials, in particular to a high-performance urban rail cable sheath material. Background technique [0002] With the continuous development of the domestic economy and the acceleration of urbanization, urban rail transit, as a basic public welfare facility to solve urban travel convenience, has been widely recognized in many cities because of its fast, safe, comfortable, convenient, energy-saving and environmentally friendly features. With large-scale construction, urban rail cables have been widely used, among which the use of fire-resistant cables has increased significantly. In some important departments and public places, after a fire occurs, the packaging line can run normally for a period of time, which is of great help to rescue work. And can reduce casualties and property losses to a great extent. The outermost layer of the urban rail cable is a sheath, ...

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of the domestic economy and the acceleration of urbanization, urban rail transit, as a basic public welfare facility to solve urban travel convenience, has been widely recognized in many cities because of its fast, safe, comfortable, convenient, energy-saving and environmentally friendly features. With large-scale construction, urban rail cables have been widely used, among which the use of fire-resistant cables has increased significantly. In some important departments and public places, after a fire occurs, the packaging line can run normally for a period of time, which is of great help to rescue work. And can reduce casualties and property losses to a great extent. The outermost layer of the urban rail cable is a sheath, which is generally rubber or rubber synthetic sheath. The function of the sheath is to insulate and protect the cable from damage. Its fire resistance performance is the most important Whether it is good or not plays a vital role in the safe operation of urban rail cables. Although a variety of fire-resistant cable sheath materials have been developed, they still cannot meet the needs. Small size, excellent physical and mechanical properties, and long-term use of urban rail cable sheath materials have become technical problems that need to be solved at present