中国电机工程学报2016，Vol.36Issue(4)：1163-1170,1202,9.DOI:10.13334/j.0258-8013.pcsee.2016.04.032
拉伸状态下LDPE/SiO2改性材料的空间电荷特性研究
Study on Space Charge Behavior in LDPE/SiO2 Nanocomposites Under Tensile Condition
摘要
Abstract
In order to research space charge behavior in low-density polyethylene (LDPE)/SiO2 nanocomposites, this paper prepared LDPE/SiO2 nanocomposites with particle size of 15nm and 50nm, mass fraction of 5% and elongation of 10%. Space charge behavior of each sample was tested by pulsed electroacoustic apparatus (PEA) method. The results show that homocharge accumulation changes to hetercharge accumulation near electrodes in LDPE/SiO2 nanocomposites when nanoparticles were added. The amount of space charge increases under tensile condition. There is a large amount of space charge in nanocomposites with elongation of 10% and nanoparticles'' mass fraction of 5%. At the same time, there are two different polarity packet-like space charges in the center of nanocomposites and the packet-like space charge in nanocomposites with particle size of 50nm is more obvious than that in nancomposites with particle size of 15nm. This paper explains packet-like space charge by using solitary wave theory, force stressed on charges in nanocomposites and surface charge accumulation of nanocomposites with different dielectric constant, which provides reference for the motion characteristics and distribution characteristics of space charge in nanocomposites.关键词
LDPE/SiO2改性材料/空间电荷包/拉伸率/孤波理论/表面电荷累积Key words
LDPE/SiO2nanocomposites/packet-like space charge/elongation/solitary wave theory/surface charge accumulation分类
信息技术与安全科学引用本文复制引用
王灿,王有元,凡朋,廖瑞金..拉伸状态下LDPE/SiO2改性材料的空间电荷特性研究[J].中国电机工程学报,2016,36(4):1163-1170,1202,9.基金项目
输配电装备及系统安全与新技术国家重点实验室自助研究课题(2007DA10512713205). State Key Laboratory of Power Transmission Equipment & System Security and New Technology(2007DA10512713205). （2007DA10512713205）
