Ageing-resisting cable sheath

Abstract

The invention discloses an ageing-resisting cable sheath. The ageing-resisting cable sheath is prepared from, by weight, 42-52 parts of chlorinated polyethylene, 8-12 parts of epoxidized natural rubber, 1-3 parts of antimonous oxide, 1-4 parts of sulfonamide vulkacit, 15-20 parts of nano calcium carbonate, 3-5 parts of zinc oxide, 1-4 parts of stearic acid, 2-5 parts of ethylene bis stearamide, 0.5-1 part of bis(pentamethylenethiocarbamoyl) hexasulfide, 2-4 parts of cross-linking agent, 2-5 parts of nanosilicon dioxide, 0.5-1 part of pentaerythritol, 2-5 parts of carbon black and 3-7 parts of talcum powder. The ageing-resisting cable sheath is excellent in heat resistance, the tearing strength and resilience force performance are improved, and good heat resistance, inflaming resistance, sunlight resistance and acid and alkali resistance are achieved.

Description

technical field [0001] The invention belongs to the field of cables, and in particular relates to an aging-resistant cable protective sheath. Background technique [0002] Cables are usually made of one or more mutually insulated conductors covered with insulation and protective layers. The insulation layer or sheath of traditional wires and cables cannot withstand high temperatures. The rubber sheath material of traditional cables is exposed to heat during long-term storage and use. , mechanical energy, light energy and radiation energy, coupled with the chemical reactions of oxygen, ozone, moisture and variable-valence metals, metal ions, gradually appear the aging phenomenon of becoming soft and sticky, hard and brittle or cracked, making its physical The mechanical performance deteriorates, and even loses its original performance, causing the cable to fail during use. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the invention provide...

AI Technical Summary

Problems solved by technology

[0002] Cables are usually made of one or more mutually insulated conductors covered with insulation and protective layers. The insulation layer or sheath of traditional wires and cables cannot withstand high temperatures. The rubber sheath material of traditional cables is exposed to heat during long-term storage and use. , mechanical energy, light energy and radiation energy, coupled with the chemical reactions of oxygen, ozone, moisture and variable-valence metals, metal ions, gradually appear the aging phenomenon of becoming soft and sticky, hard and brittle or cracked, making its physical The mechanical performance deteriorates, or even loses its original performance, causing the cable to fail during use