High-flame-retardant halogen-free cable material for building and preparation method thereof

Abstract

The invention discloses a high-flame-retardant halogen-free cable material for a building and a preparation method thereof. The high-flame-retardant halogen-free cable material for the building is prepared from the following raw materials in parts by weight: 20 to 35 parts of ethylene-vinyl acetate copolymer resin, 11 to 15 parts of aluminium methacrylate, 15 to 35 parts of styrene rubber, 20 to 25 parts of polyimide, 20 to 30 parts of expanded perlite powder, 13 to 22 parts of nano-attapulgite, 14 to 19 parts of maleic anhydride, 2 to 6 parts of zinc stearate, 2 to 8 parts of polyethylene wax, 2 to 6 parts of polycaprolactone, 4 to 8 parts of molybdenum trioxide, 2 to 8 parts of copper sulphate, 7 to 14 parts of polypropylene-enhanced fibres and 5 to 11 parts of composite filler. The raw materials, such as the ethylene-vinyl acetate copolymer resin, the aluminium methacrylate, the styrene rubber, the polyimide, the expended perlite powder and the nano-attapulgite, are scientifically proportioned and combined, and the composite filler, an anti-aging agent, a flame retardant, an environment-friendly agent and a vulcanizing agent react and are fused; a preparation process method is simple; the prepared product has high corrosion resistance, flame retardance and insulating performance, and is suitable to be used in a plurality of fields.

Description

technical field [0001] The invention relates to the technical field of cable material production, in particular to a halogen-free cable material for high flame-retardant buildings and a preparation method thereof. Background technique [0002] Plastics for wire and cable insulation and sheathing are commonly known as cable materials, including rubber, plastic, nylon and other varieties. With the development of society, wires and cables are more and more widely used in various fields, such as transportation, communication, construction, etc. Therefore, the requirements for the professional field of wires and cables are also getting higher and higher. It is subject to external pressure, tension, bending, collision, beating, etc., and the cable material will withstand the test of heat and cold, light, chemicals, water, voltage and other environments during use, and it will be scratched, corroded, worn, broken, Cracking, aging, burning, breakdown leakage and other phenomena n...

AI Technical Summary

Problems solved by technology

However, due to the low mechanical strength and hardness of the ethylene vinyl acetate copolymer material, the material has low mechanical strength and poor wear resistance, resulting in damage to the cable surface sheath during the installation and laying of the cable, especially for large cross-section cables. Once the cable sheath is broken, it may cause the instability of the power grid system, and the cable body will be subjected to various damages, which cannot effectively protect the effective operation of the cable; and the existing low-smoke, halogen-free, flame-retardant sheath materials have poor adhesion, affecting Efficient use of cables