High-voltage-resisting cable material and preparation method thereof

Abstract

The invention discloses a high-voltage-resisting cable material which is prepared from, by weight, 7-8 parts of fluorinated silicone rubber micro powder, 0.6-0.8 part of amino resin, 0.4-0.6 part of cerium oxide, 8-9 parts of fluorocarbon rubber micro powder, 6-8 parts of magnesium hydrate, 9-10 parts of polyacrylonitrile, 6-7 parts of polylactic acid, 3-4 parts of polyoxyethylene, an appropriate amount of dimethylformamide, an appropriate amount of composite solvent with the volume ratio of dimethylformamide to dichloromethane being 1:1, an appropriate amount of methyl methacrylate, an appropriate amount of isopropylthioxanthone, 20-25 parts of ethylene-vinyl acetate copolymer and 80-85 parts of low-density polyethylene. The cable material has the excellent heat resistance, cold resistance, high voltage resistance, weather resistance, aging resistance and the like due to the fact that the fluorinated silicone rubber micro powder, the cerium oxide and fluorocarbon rubber micro powder are adopted, and also has the excellent hydrogen type solvent resistance, oil resistance, acid-base resistance and lower surface energy, the using voltage of the cable material is increased, and the using range is enlarged; by adding the magnesium hydrate, the flame resistance of the cable material is improved, and no poison gas is decomposed out.

Description

technical field [0001] The invention relates to the field of cable materials, in particular to a high-voltage resistant 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 performance of cable materia...

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