High flame-retardation halogen-free cable material and preparation method thereof

Abstract

The invention discloses a high flame-retardation halogen-free cable material. The high flame-retardation halogen-free cable material comprises the following raw materials in parts by weight: 15-19 parts of high-density polyethylene resin, 22-25 parts of an ethylene-vinyl acetate copolymer, 14-18 parts of nitrile rubber, 2-6 parts of trioctyltrimellitate, 2-4 parts of sodium tripolyphosphate, 1-3parts of zirconium fluoride, 7-9 parts of organosilicon mixed stock, 1-2 parts of calcium stearate, 1-4 parts of nano bentonite, 2-9 parts of microcrystalline paraffin, 12-15 parts of niobium pentoxide, 3-7 parts of europium trifluoroacetone, and 12-16 parts of an auxiliary agent. The cable material has the characteristics of high tensile strength, wide temperature scope, no halogen, and low smoke, has little influence to environment, and cannot generate damage on human life and property due to severe corrosive and toxic gas, and acid-base resistance property can achieve the usage requirement.

Description

technical field [0001] The invention relates to the field of cable materials, in particular to a highly flame-retardant halogen-free cable material and a preparation method thereof. Background technique [0002] In recent years, it has been found that more than 80% of the fatalities in fire accidents are related to the dense smoke and toxic gases produced by materials. With the rapid development of my country's modern industry, safety and prevention measures should be more and more perfect. In many large public places, in order to avoid the secondary disaster caused by cable fire (a large amount of smoke and acid gas are produced when the cable burns), special The wires and cables used to transmit electric energy and communication signals are not only required to have flame retardant properties such as preventing flame spread when the cable and the surrounding environment are on fire, and can maintain the cable to continue to transmit electric energy and communication signals...

AI Technical Summary

Problems solved by technology

That is, there is an urgent need for an insulation layer or sheath layer made of a highly flame-retardant halogen-free cable insulation material or sheath material that can be used in a temperature environment of -40 to 80°C, and will not generate a large amount of heat in the event of a fire accident. Smoke, severe corrosive gas and toxic gas, causing damage to people's lives and properties