中国电机工程学报2016，Vol.36Issue(24)：6613-6618,6.DOI:10.13334/j.0258-8013.pcsee.161832
纳米Al2O3对低密度聚乙烯高压直流电缆绝缘材料性能影响研究
Effect of Nano-Al2O3 on Insulating Properties of Low-density Polyethylene Nanocomposites for HVDC Cables
摘要
Abstract
Low-density polyethylene (LDPE) nano- composites filled with alumina nanoparticles (nano-Al2O3) with mass fraction of 0.1%, 0.2%, 0.5% and 1% were prepared employing the melting blend method. Space charge profiles and electric field distortion characteristics of LDPE nanocomposites under the electric field of 30 kV/mm at room temperature were measured by the pulse electro-acoustic method. Effects of temperature and electric fields on direct current (DC) conductivity of the nanocomposites were also studied. Results show that 1% Al2O3 nanoparticles added into LDPE can effectively improve the charge accumulation and field distortion in the LDPE nanocomposites and reduce DC conductivity. Moreover, the DC conductivities of LDPE nanocomposites have different temperature trends under different electric fields.关键词
纳米氧化铝/低密度聚乙烯/空间电荷/直流电导率Key words
nano-Al2O3/low-density polyethylene/space charge/DC conductivity分类
信息技术与安全科学引用本文复制引用
王思蛟,查俊伟,王俊甫,党智敏..纳米Al2O3对低密度聚乙烯高压直流电缆绝缘材料性能影响研究[J].中国电机工程学报,2016,36(24):6613-6618,6.基金项目
国家重点基础研究发展计划项目(973计划)(2014CB239503)；国家自然科学基金项目(51622701)。 Project Supported by National Basic Research Program of China (973 Program)(2014CB239503) （973计划）
National Natural Science Foundation of China (51622701) （51622701）
