中国电机工程学报2026，Vol.46Issue(5)：2153-2164,封3,13.DOI:10.13334/j.0258-8013.pcsee.250442
等离子氟化间位芳纶纸有效接枝结构及其陷阱特性微观机理研究
Effective Grafting Structure of Plasma Fluorinated Meta-aramid Paper and Micro-mechanism of Its Trap Properties
陈敏 1张涛 1张晋源 1智李 2何牧谦1
作者信息
- 1. 三峡大学电气与新能源学院,湖北省宜昌市 443002
- 2. 三峡大学湖北省输电线路工程技术研究中心,湖北省宜昌市 443002
- 折叠
摘要
Abstract
Fluorination modification of poly-m-phenylene isophthalamide(PMIA)is an effective strategy to optimize its trap characteristics and improve surface flashover voltage.This article first establishes a simple and efficient plasma fluorination platform,prepares aramid paper fluorination samples.Secondly,the fluorination modification effects are characterized using X-ray photoelectron spectroscopy(XPS),and the grafting models as well as their regulation mechanisms on trap parameters are investigated through quantum chemical calculations.Finally,the dielectric properties are evaluated by measuring the frequency domain dielectric spectra of the samples,and calculating the dipole moments,polarizabilities,and ionization energies of each molecular system under different electric fields.The results show that fluorination treatment for 5 min yields an effectively fluorinated sample,and the plasma CF3+/CF2+forms a stable grafted structure with PMIA amide groups.The PMIA-g-CF2 configuration reduces the electron trap energy level of PMIA molecules from 2.41 eV to 1.64 eV,and increases the hole trap energy level from 1.27 eV to 1.79 eV.Shallow electron traps and deeper hole traps can improve the surface conductivity of the medium and suppress the development of gas flow,significantly improving the surface flashover performance.In addition,exploration of fluorination effects on PMIA dielectric properties at the atomic and molecular level reveals that PMIA-g-CF2 molecules have excellent dielectric properties and are the most promising modified configuration for application.关键词
间位芳纶纸/等离子氟化/陷阱深度/闪络电压Key words
poly-m-phenylene isophthalamide/plasma fluorination/trap depth/flashover voltage分类
信息技术与安全科学引用本文复制引用
陈敏,张涛,张晋源,智李,何牧谦..等离子氟化间位芳纶纸有效接枝结构及其陷阱特性微观机理研究[J].中国电机工程学报,2026,46(5):2153-2164,封3,13.
