Antifouling halogen-free flame retardant cable material and preparation method thereof

Abstract

The invention provides an antifouling halogen-free flame retardant cable material. The material is prepared by the following raw materials in parts by weight: 5-6 parts of nano-silica, 6-8 parts of polytetrafluoroethylene micro powder, 1.4-1.8 parts of magnesium hydroxide, 6-7 parts of aluminium hydroxide, 9-10 parts of polyacrylonitrile, 6-7 parts of polylactic acid, 3-4 parts of polyoxyethylene, a proper amount of dimethyl formamide, a proper amount of a composite solvent containing dimethyl formamide and dichloromethane whose volume ratio is 1:1, a proper amount of methyl methacrylate, a proper amount of 2-isopropylthioxanthone, 20-25 parts of an ethylene-vinyl acetate copolymer, and 80-85 parts of low density polyethylene. The polytetrafluoroethylene micro powder and nano-silica are used, so the cable material has self-cleaning and antifouling performance; aluminium hydroxide is added, so that flame resistance of the cable material is improved, and poison gas is not decomposed; The phenomenon of aggregation of filling materials due to uneven dispersion is obviously reduced, and the cable material has improved tearing resistance, toughness and other performance.

Description

technical field [0001] The invention relates to the field of cable materials, in particular to an antifouling, halogen-free, flame-retardant cable material 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 need to improve the perform...

AI Technical Summary

Problems solved by technology

[0003] In the practical application of low-smoke, halogen-free and flame-retardant polyolefin cable sheathing materials, it often faces the problem that the mechanical properties, processing properties and flame-retardant properties are mutually restricted and cannot be balanced

In order to obtain the best balance between mechanical properties and flame retardant properties on the basis of meeting the basic performance requirements, the commonly used methods are: surface coupling treatment of inorganic flame retardant fillers, use of compatibilizers, etc. This method cannot completely solve the problem of inorganic flame retardant. Combination properties of fuel fillers and plastics

Other fillers will also have the same compatibility problems, and it is necessary to improve the process to improve the mechanical properties of the cable material