Flame-retardant and environmentally-friendly polyurethane cable material and its preparation method

Abstract

The invention provides an flame-retardant and environmentally-friendly polyurethane cable material. The cable material is prepared from the following raw materials, by weight, 20-30 parts of chloroprene rubber, 60-80 parts of a polyurethane thermoplastic elastomer, 8-10 parts of acrylonitrile-butadiene rubber, 8-10 parts of chlorinated paraffin, 0.5-1.0 part of stearic acid, 1-3 parts of barium stearate, 4-6 parts of iron oxide, 0.5-1.0 part of ammonium trimolybdate, 30-50 parts of precipitated silica, 10-13 parts of modified argil, 0.5-1.0 part of capsaicin, 0.1-0.3 parts of an antioxidant AW, 0.5-1.5 parts of a promoter TMTD, 0.2-0.5 parts of sulfur, 8-10 parts of decabromodiphenyl oxide, 12-15 parts of antimony (III) oxide and 6-8 parts of zinc borate hydrate. The cable material has the advantages of excellent flame retardation, very less smoke in combustion, no generation of toxic gases or corrosive gases, good low temperature resistance, good oil resistance, and good abrasion resistance, and the cables processed through using the cable material can prevent the harms of mice and termites and simultaneously have the efficacies of low smoke, environmental protection and flame retardation.

Description

technical field [0001] The invention relates to the field of cable materials, in particular to a polyurethane flame-retardant and environment-friendly cable material and a preparation method thereof. Background technique [0002] With the rapid development of the global economy and the enhancement of human awareness of environmental protection, the requirements for the quality and performance of wires and cables in various fields are getting higher and higher. Mice and termites are one of the three major hazards that endanger plastic sheathed cables and optical cables. Many accidents occur every year, causing huge economic losses. [0003] There are more and more fires caused by the aging of wires. How to reduce the incidence of fire and the death rate in the event of fire, low smoke, halogen-free, flame retardant, and environmental protection have also become the development direction of the wire and cable industry. Among them, the demand for halogen-free low-smoke flame...

AI Technical Summary

Problems solved by technology

Among them, the demand for halogen-free low-smoke flame-retardant cable materials is increasing. At present, most of the production of halogen-free low-smoke flame-retardant cable materials is to add a large amount of chlorinated paraffin or chlorinated paraffin to polyolefin substrates to achieve flame retardancy. However, the addition of a large amount of inorganic materials affects the physical and mechanical properties and processing performance of the cable material. Its softness, poor weather resistance, oil resistance, and low temperature resistance at room temperature are not very good.