Argil-modified low-smoke zero-halogen power cable sheath material and preparation method thereof

Abstract

The invention provides an argil-modified low-smoke zero-halogen power cable sheath material which comprises the following components in parts by mass: 40-70 parts of ethylene-vinyl acetate copolymer, 20-40 parts of linear low-density polyethylene, 10-20 parts of high-molecular compatilizer, 130-160 parts of flame retardant, 5-20 parts of synergistic flame retardant, 2-4 parts of surface treating agent, 0.5-1 part of antioxidant, 5-7 parts of carbon black masterbatch and 1-4 parts of processing aid, wherein the flame retardant contains barium sulfate, and the synergistic flame retardant contains argil. The invention also provides a preparation method of the power cable sheath material.

Description

technical field [0001] The invention relates to a cable sheathing material, in particular to the field of a low-smoke, halogen-free, flame-retardant power cable sheathing material. Background technique [0002] In the past, the flame retardant materials in the domestic wire and cable industry were mostly halogen-containing flame retardant materials, and although some high-efficiency flame retardants can bring high flame retardant performance, they either need to be used in combination with halogen flame retardants. , or most of them are imported materials, and few manufacturers can accept the cost. When traditional halogen-containing materials are burned, a large amount of smoke and corrosive halides are released, which will cause damage to the human body and the environment. At present, most of the high-flame-retardant cable materials use high-filling methods, but high-filling brings many problems such as poor mechanical properties and poor crack resistance. Cracks and lea...

AI Technical Summary

Problems solved by technology

When traditional halogen-containing materials are burned, a large amount of smoke and corrosive halides are released, which will cause damage to the human body and the environment

At present, most of the high-flame-retardant cable materials use high-filling methods, but high-filling brings many problems such as poor mechanical properties and poor crack resistance. Cracks and leakage during use have brought hidden dangers to public safety.

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