Cable insulation composition and preparation method thereof

Abstract

The invention provides a cable insulation composition and a preparation method thereof. The cable insulation composition is characterized by the following raw materials by weight parts: 50-55 parts of a high-density polyethylene, 1-2 parts of an anti-oxidant 1010, 23-26 parts of meerschaum powder, 2-3 parts of smoked sheet, 1-2 parts of nano-clay brick slag powder, 1-2 parts of silicon carbide powder, 3-4 parts of vanadium diboride, 2-3 parts of zirconium diboride, 1-2 parts of p-tert-butyl benzoic acid, 2-3 parts of cellulose acetate, 1-2 parts of isocyanate, 1-2 parts of aluminium hydroxide powder, 12-14 parts of cis-1,4-polyisoprene rubber, 1-2 parts of cyanuric acid zinc, 23-25 parts of meerschaum powder, 10-12 parts of vermiculite powder, 4-6 parts of celestine powder, 3-4 parts of an accelerator M, 1-2 parts of an antioxidant MB, 1-2 parts of an anti-scorching agent CTP, 3-4 parts of vinyl-tris(beta-methoxyethoxy)silane, 1-2 parts of vinyl propionate and 6-8 parts of modified diatomite. According to the invention, the cis-1,4-polyisoprene rubber is added to improve brittleness of the high-density polyethylene, thereby enhancing soft toughness of cable materials; the silicon carbide powder is added to relatively improve wear resistant performance of the composition, thereby increasing using range of the cable materials.

Description

technical field [0001] The invention belongs to the technical field of cable materials, and more specifically relates to a cable insulating composition and a preparation method thereof. Background technique [0002] Wire and cable materials are mainly made of resin materials, fillers, plasticizers, anti-aging agents, flame retardants, antioxidants, etc. The formula raw materials are mainly concentrated in some common ingredients, which leads to low technical indicators of cable materials or Problems such as high cost, such as low volume resistivity, high temperature resistance, low temperature resistance, flame retardancy, insulation, etc., cannot meet the requirements of cable manufacturers for higher electrical properties of insulating grade sheath materials. Contents of the invention [0003] The object of the present invention is to provide a cable insulating composition and a preparation method thereof. [0004] The technical scheme adopted in the present invention i...

AI Technical Summary

Problems solved by technology

[0002] Wire and cable materials are mainly made of resin materials, fillers, plasticizers, anti-aging agents, flame retardants, antioxidants, etc. The formula raw materials are mainly concentrated in some common ingredients, which leads to low technical indicators of cable materials or Problems such as high cost, such as low volume resistivity, high temperature resistance, low temperature resistance, flame retardancy, insulation, etc. cannot meet the requirements of cable manufacturers for higher electrical properties of insulating grade sheath materials