A flame-retardant and anti-aging cable composite material and a preparation method thereof

CN122302398APending Publication Date: 2026-06-30INTEGRITY CABLE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INTEGRITY CABLE CO LTD
Filing Date
2026-05-07
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional polyolefin materials have weak flame retardancy and anti-aging properties in cable protective layers, which makes the cables prone to aging during use, affecting their lifespan and causing safety hazards.

Method used

Flame-retardant and anti-aging cable composite materials are prepared by using materials such as low-density polyethylene, EVA, flame-retardant and high-temperature resistant polysiloxane, anti-aging agent, flame-retardant filler, polyolefin thermoplastic elastomer and lubricant through mixing, flat vulcanization and irradiation processes. The crosslinking degree and compatibility of the materials are improved by using unsaturated double bond reaction and electron beam irradiation.

Benefits of technology

It improves the heat resistance, aging resistance and mechanical properties of cable composite materials, enhances flame retardancy, extends the service life of cables and improves safety.

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Abstract

This invention discloses a flame-retardant and anti-aging cable composite material and its preparation method, belonging to the field of cable material preparation technology. In this invention, a flame-retardant, high-temperature resistant polysiloxane containing double bonds, an anti-aging agent, and a flame-retardant filler are prepared and blended with raw materials such as EVA and low-density polyethylene. Irradiation causes cross-linking between the materials, endowing the composite material with heat resistance, aging resistance, and good mechanical properties. The anti-aging agent of this invention includes siloxane groups and benzophenone groups, possessing good resistance to both UV aging and heat aging, which is beneficial for further improving the anti-aging performance of the prepared cable composite material. The flame-retardant filler of this invention has urethane bonds grafted onto its surface, which matches the polarity of the EVA vinyl acetate segments, improving the compatibility between the flame-retardant filler and EVA, and further enhancing the flame retardancy of the prepared composite cable material.
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