Corrosion-resistant power cable

By using a method of compounding ethylene-vinyl acetate copolymer with polyvinylidene fluoride and hybrid fillers, the challenges of flame retardancy, mechanical properties and corrosion resistance of cable materials have been solved, achieving high-efficiency flame retardancy, optimized interfacial bonding and corrosion resistance, and meeting environmental protection requirements.

CN122127689APending Publication Date: 2026-06-02JIANGSU YONGSHENG CABLE TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU YONGSHENG CABLE TECH CO LTD
Filing Date
2026-03-30
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing cable materials face challenges in terms of flame retardancy, mechanical properties, and long-term service reliability. In particular, under dynamic usage conditions, the material interface is prone to debonding and microcrack propagation, leading to sheath cracking and insulation failure. Furthermore, traditional functional fillers have poor interfacial compatibility and are prone to agglomeration during processing, affecting bending resistance and toughness.

Method used

The matrix material is a blend of ethylene-vinyl acetate copolymer and polyvinylidene fluoride. Hybrid fillers are prepared by phytic acid, methacryloyloxyethyl phosphate, perfluorohexyl ethyl diacrylate, silica and zinc oxide. A zinc phytate layer is generated on the filler surface through esterification and free radical polymerization to optimize the flame retardancy and interfacial bonding of the material.

Benefits of technology

It significantly improves the cable's corrosion resistance, flame retardancy, and thermal stability, reduces the penetration of corrosive media, meets environmental protection and sustainable development requirements, and maintains the material's flexibility and mechanical properties, thus extending the cable's service life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure SMS_1
    Figure SMS_1
Patent Text Reader

Abstract

This invention discloses a corrosion-resistant power cable, relating to the field of cable materials. The material, by weight, comprises: 100 parts masterbatch, 15-25 parts hybrid filler, 0.5 parts antioxidant, and 1.5 parts lubricant. The invention uses phytic acid, methacryloyloxyethyl phosphate, perfluorohexyl ethyl diacrylate, silica, and zinc oxide as raw materials to prepare the hybrid filler. Phytic acid and silica are covalently bonded; the remaining phosphate groups are adsorbed via hydrogen bonding, allowing free radical polymerization to preferentially occur on the filler surface. After polymerization, zinc oxide is added to react and generate zinc phytate. The hybrid filler can prevent corrosive media from penetrating into the material's interior, while the fluorinated cross-linked polymer imparts extremely low surface energy to the filler surface, reducing the adhesion and wetting of corrosive liquids, effectively optimizing the cable's corrosion resistance. Phosphorus is anchored in the filler and polymer structure through a chemical reaction, improving flame retardancy.
Need to check novelty before this filing date? Find Prior Art