Cross-linked low-smoke and zero-halogen flame retardant cable material for locomotive vehicles, and its preparation method

Abstract

The invention provides a cross-linked low-smoke and zero-halogen flame retardant cable material for locomotive vehicles. The cable material is prepared from the following raw materials, by weight, 100 parts of methyl-vinyl silicone rubber, 40-50 parts of isoprene rubber, 60-80 parts of linear low-density polyethylene, 9-11 parts of a styrene type thermoplastic elastomer SEBS, 0.2-0.4 parts of an ultraviolet ray absorber UV-9, 1-2 parts of TAIC, 4-6 parts of zinc oxide, 0.5-1.0 part of molybdenum trioxide, 30-50 parts of carbon black 550, 10-13 parts of modified diatomite, 0.5-1.0 part of an antioxidant D, 0.1-0.3 parts of an antioxidant 4010NA, 8-10 parts of triphenyl phosphate, 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 weather resistance, good abrasion resistance and good insulation property.

Description

technical field [0001] The invention relates to the field of cable materials, in particular to a cross-linked low-smoke halogen-free flame-retardant cable material for locomotives 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, and there are more and more fires caused by the aging of wires and cables. How to reduce the 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-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 magnesium hydroxide or magnesium hydroxide to ...

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 magnesium hydroxide or magnesium hydroxide 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 flame retardancy at room temperature are not very good.

Images