高电压技术2023，Vol.49Issue(12)：4911-4918,8.DOI:10.13336/j.1003-6520.hve.20221923
输电线路用聚烯烃绝缘子的憎水迁移性能
Hydrophobicity Transfer Properties of Polyolefin Insulators in Transmission Lines
摘要
Abstract
Polyolefin insulators have the advantages of excellent electrical performance,hydrophobicity,mechanical strength,as well as rigidity,however,their hydrophobicity transfer and resistance to tracking and erosion are difficult to develop.Therefore,we synthesized a novel fluorine-containing solid hydrophobic agent by the addition reaction of long-chain aliphatic amine and perfluoroalkyl acrylate,and studied its effects on hydrophobicity transfer,resistance to electric tacking and erosion,mechanical strength and other properties of polyolefin materials.The results show that the fluorinated compound is enriched on the sample surface after adding 1％hydrophobic agent.On the premise of maintain-ing insulation,mechanical strength and resistance to electric tacking and erosion(1A4.5),the modified sample shows an improved hydrophobicity transfer performance.Under the standard pollution layer,the water contact angle increases from 71.7° to 90.7° after the transfer time of 96 h.The contact angle remains above 100° even after 96 h of immersion in water.Further study reveals that the fluorine-containing hydrophobic agent also plays a role in delaying icing and reducing the ice coating adhesion.The results provide theoretical and technical supports for the reliable application of novel polyolefin insulators in transmission lines.关键词
绝缘子/聚烯烃/憎水迁移性/耐漏电起痕/含氟化合物Key words
insulator/polyolefin/hydrophobicity transfer/resistance to tracking and erosion/fluorine-containing com-pound引用本文复制引用
郭学文,汪开瑞,曹斌,全一武,严姗芝..输电线路用聚烯烃绝缘子的憎水迁移性能[J].高电压技术,2023,49(12):4911-4918,8.基金项目
江苏省重点研发计划(产业前瞻与关键核心技术)(BE2021087).Project supported by Key Research and Development Program(Industry Foresight and Key Core Technology)of Jiangsu Province(BE2021087). （产业前瞻与关键核心技术）
