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[1]闫志雨,赵洪,韩宝忠,等.基于α松弛分析CB/LDPE 纳米复合介质空间电荷特性 [J].电机与控制学报,2017,21(06):50-58.[doi:10.15938/j.emc.2017.06.007]
 YAN Zhi-yu,ZHAO Hong,HAN Bao-zhong,et al.Analysis of the space charge characteristic of CB/LDPE nanocomposites from the view of α relaxation[J].,2017,21(06):50-58.[doi:10.15938/j.emc.2017.06.007]
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基于α松弛分析CB/LDPE 纳米复合介质空间电荷特性
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
21
期数:
2017年06
页码:
50-58
栏目:
出版日期:
2017-06-01

文章信息/Info

Title:
Analysis of the space charge characteristic of CB/LDPE nanocomposites from the view of α relaxation
作者:
?闫志雨1 赵洪1 韩宝忠12 杨佳明1 陈俊岐1
?( 1. 哈尔滨理工大学工程电介质及其应用技术教育部重点实验室,黑龙江哈尔滨150080; 2. 上海起帆电线电缆有限公司,上海200008)
Author(s):
?YAN Zhi-yu1 ZHAO Hong1 HAN Bao-zhong12 YANG Jia-ming1 CHEN Jun-qi1
?( 1. Key Laboratory of Engineering Dielectric and its Application ,Ministry of Education,Harbin University of Science and Technology,Harbin 150080,China; 2. Shanghai Qifan Wire and Cable Co. ,Ltd. ,Shanghai 200008,China)
关键词:
低密度聚乙烯 炭黑 空间电荷 α 松弛 动态机械分析 热刺激电流
Keywords:
polyethylene carbon black space charge α relaxation dynamic mechanical analysis thermally stimulated current
分类号:
TM 85
DOI:
10.15938/j.emc.2017.06.007
文献标志码:
A
摘要:
?分别以导电炭黑( C - CB) 和绝缘炭黑( I - CB) 作为纳米填充相,研究不同性能炭黑( CB) 对低密度聚乙烯( LDPE) 空间电荷特性的影响。采用多种测试方法对CB 微观形貌和表面化学特性进行表征。利用电声脉冲( PEA) 法测量LDPE 及其纳米复合介质的空间电荷分布,并结合动态
机械分析法( DMA) 和热刺激电流法( TSC) 探索CB 改善LDPE 空间电荷特性的作用机理。结果表明: C - CB 比I - CB 具有更长的链状结构和较少的表面基团,可与LDPE 产生更强的相互作用; C- CB /LDPE 和I - CB /LDPE 纳米复合介质均能够有效地抑制空间电荷积聚,其中前者的空间电荷抑制能力更强。分析认为复合介质空间电荷性能改善是由于CB 与LDPE 相互作用,减少了参与α 弛的分子形成的缺陷数量,降低了LDPE 内的陷阱密度。
Abstract:
To investigate the influence of carbon black ( CB) on space charge of the composites of low density polyethylene ( LDPE) ,blending with the conductive carbon black ( C - CB) and insulating carbon black ( I - CB) were employed as filler particles,respectively. The microstructure and surface chemical property of the two kinds of CB particles were characterized. The space charge distribution of LDPE and the CB /LDPE nanocomposites were obtained by the pulsed electro-acoustic ( PEA) method. The dynamic
mechanical analysis ( DMA) and thermally stimulated current( TSC) methods were also introduced to explore the mechanism for improving space charge performance of LDPE. Experimental results demonstrated that the C - CB particle has longer branched structures and less surface groups compared with I - CB particle,which can be more effective interacted with LDPE. Both of the C - CB /LDPE and I - CB / LDPE nanocomposites can effectively suppress the space charge accumulation,and the former’s ability of suppressing space charge accumulation is stronger. It could be concluded that the space charge characteristic improvement of CB /LDPE nanocomposites is attributed to the interaction between CB particles and LDPE,which reduces the number of defects formed from molecules participating in α relaxation and decreases the density of traps in the LDPE.

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备注/Memo:
收稿日期: 2017 - 03 - 03
基金项目: 国家自然科学基金重点项目( 51337002) ; 黑龙江省杰出青年科学基金( JC201409)
作者简介: 闫志雨( 1986—) ,男,博士研究生,研究方向为纳米电介质理论及测试技术;
赵洪( 1955—) ,男,教授,博士生导师,研究方向为聚合物绝缘理论及测试技术;
韩宝忠( 1970—) ,男,教授,博士生导师,研究方向为高性能聚合物电介质材料;
杨佳明( 1984—) ,男,讲师,博士,研究方向为纳米复合电介质理论及测试;
陈俊岐( 1988—) ,男,博士研究生,研究方向为高电压与绝缘技术。
更新日期/Last Update: 2017-08-24