Anti-ultraviolet polyethylene electric cable insulation material and preparation method thereof

Abstract

The present invention discloses an anti-ultraviolet polyethylene electric cable insulation material, which is characterized in that the anti-ultraviolet polyethylene electric cable insulation material is prepared from the following raw materials by weight: 40-45 parts of linear low density polyethylene, 14-18 parts of high density polyethylene, 1-2 parts of an antioxidant 1035, 4-6 parts of PE wax, 16-19 parts of general-purpose polystyrene, 2-3 parts of polyisobutylene, 3-4 parts of zinc stearate, 22-25 parts of dioctyl phthalate, 14-16 parts of dibutyl phthalate, 2-3 parts of zinc borate, 1-2 parts of an antioxidant DLTP, 2-3 parts of an anti-scorching agent CTP, and 6-8 parts of an auxiliary agent. The product has characteristics of good stability, uniform color, excellent ultraviolet resistance, excellent weather resistance, excellent toughness and excellent cracking resistance, and is mainly used for the protection layer of outdoor overhead electric wire electric cables or electric wire electric cables in other similar occasions.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to an anti-ultraviolet polyethylene cable insulating material and a preparation method thereof. Background technique [0002] Insulating materials for cables are generally required to have excellent long-term heat aging resistance, radiation resistance, stable electrical properties, flame retardancy and excellent insulation properties. [0003] Polyethylene (PE) is a thermoplastic resin obtained by polymerization of ethylene. In industry, it also includes copolymers of ethylene and a small amount of α-olefins. Polyethylene is odorless, non-toxic, feels like wax, has excellent low temperature resistance, good chemical stability, and can withstand most acids and alkalis. Insoluble in common solvents at room temperature, low water absorption, excellent electrical insulation properties. High-density polyethylene, commonly known as low-pressure polyethylene, compared with LDPE and LLD...

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Problems solved by technology

If the anti-ultraviolet and weather resistance functions cannot be achieved, due to changes in environmental factors such as temperature, humidity, light, wind, and rain in the natural environment, it will cause premature aging and cracking of the outer insulation layer of the aluminum stranded wire of overhead wires and cables, and cannot achieve protection. insulation requirements, its service life is greatly shortened for

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