Halogen-free flame retardant cable material

Abstract

The invention discloses a halogen-free flame retardant cable material which is prepared from the following raw materials in parts by weight: 60-80 parts of LDPE (Low-Density Polyethylene) resin, 15-25 parts of EPDM (Ethylene-Propylene-Diene Monomer) resin, 5-15 parts of EVA (Ethylene Vinyl-Acetate Copolymer) resin, 70-90 parts of aluminium hydroxide, 6-8 parts of red phosphorus, 25-30 parts of magnesium hydroxide, 2-3 parts of hydrotalcite, 5-10 parts of maleic anhydride grafting, 1-2 parts of antioxidant and 1-1.5 parts of silicon-copper powder. The invention aims at overcoming the defects in the prior art; the magnesium hydroxide as a flame retardant is added in the cable material, so the flame-retardant effect is achieved; by adding abamectin, asarinin and dihydrocapsaicin, the condition that the cable is bitten by termite can be effectively prevented; the silicon-copper powder as a lubricating agent, the maleic anhydride grafting as a compatilizer, the antioxidant and the other components are also added, so that various properties of the flame-retardant material are improved, and the service life of the flame-retardant material is prolonged.

Description

technical field [0001] The invention relates to the technical field of cable materials, and belongs to a halogen-free flame-retardant cable material. Background technique [0002] Plastics for wire and cable insulation and sheathing are commonly known as cable materials, including rubber, plastic, nylon and other varieties. Cable material production enterprises take cable production enterprises as users, as long as there is a demand for wire and cable, there will be a market for cable materials. Except for bare wire products such as steel-cored aluminum stranded wire and electromagnetic wire, almost all wire and cable products require an insulation layer. At present, there are nearly 5,000 wire and cable production enterprises in my country, and there is also a huge demand for wire and cable products for urban and rural power grid transformation, western development, and large-scale upgrading of communication facilities. Therefore, from a period of time, cable materials hav...

AI Technical Summary

Problems solved by technology

When the cable burns, it releases a large amount of toxic smoke and corrosive gas, which hinders people's safe evacuation and fire fighting work, causing serious loss of life and property

The currently used polyethylene is poor in flame retardancy, and it is easy to cause fire when making wires and cables