一种高韧性聚乙烯绝缘电力电缆及其制备方法
By modifying crosslinkable polyethylene masterbatch and using toughening and flame-retardant modifiers, high-toughness polyethylene insulated power cables were prepared. This solved the problems of space charge accumulation, mechanical properties, and flame retardancy of polyethylene insulation materials in high-voltage direct current transmission scenarios, and achieved cable insulation materials with high voltage level, long life, and high safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LIANYING TECH (ANFU) CO LTD
- Filing Date
- 2025-12-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing polyethylene insulation materials suffer from problems such as space charge accumulation, insufficient mechanical properties, poor flame retardancy, and rapid aging in high-voltage direct current transmission scenarios, making it difficult to meet the requirements of high voltage levels, long service life, and high safety.
A modified crosslinkable polyethylene masterbatch, comprising low-density polyethylene, 3-[(4-anilinophenyl)amino]-2-hydroxypropyl methacrylate, toughened modified montmorillonite composite, dicumyl peroxide, and N,N-diallyl aniline, is used to prepare a high-toughness polyethylene insulated power cable through extrusion and crosslinking processes. This enhances the deep-trap charge trapping ability and the interlayer spacing of montmorillonite, and forms a physical reinforcing network in combination with toughening and flame-retardant modifiers.
It significantly improves the electric field uniformity and electrical breakdown strength of insulating materials, extends the service life of the insulation layer, enhances the flame retardancy and toughness, and reduces dielectric loss and aging rate.
Smart Images
Figure CN121583644B_ABST