| 纳米氧化锌/聚乙烯复合材料中空间电荷及体积电阻率的研究 |
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| 引用本文： | 陈少卿,成霞,王霞,屠德民.纳米氧化锌/聚乙烯复合材料中空间电荷及体积电阻率的研究[J].绝缘材料,2007,40(2):48-50,53. |
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| 作者姓名： | 陈少卿 成霞 王霞 屠德民 |
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| 作者单位： | 西安交通大学电力设备电气绝缘国家重点实验室,西安,710049 |
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| 摘 要： | 以溶融共混法制备了纳米氧化锌(ZnO)/低密度聚乙烯(LDPE)的复合材料,采用电声脉冲法和高阻计法分别测量了不同纳米ZnO含量试样中的空间电荷分布和体积电阻率。实验发现,试样中的空间电荷分布明显不同于纯聚乙烯。当试样中纳米ZnO含量为0.5%时,短路过程中空间电荷衰减很快;当纳米ZnO含量进一步提高时短路过程中空间电荷衰减比纯聚乙烯的缓慢。同时发现加入纳米ZnO后复合材料的体积电阻率上升。讨论了纳米ZnO对试样中空间电荷形成和导电机理的影响。
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| 关 键 词： | 低密度聚乙烯 纳米氧化锌 空间电荷 体积电阻率 |
| 文章编号： | 1009-9239（2007）02-0048-04 |
| 收稿时间： | 2006-12-07 |
| 修稿时间： | 2006年12月7日 |
Study of Space Charge Distribution and Volume Resistivity in Composite of Polyethylene/Nano Zinc Oxide |
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| CHEN Shao-qing,WANG Xia,CHENG Xia,TU De-min.Study of Space Charge Distribution and Volume Resistivity in Composite of Polyethylene/Nano Zinc Oxide[J].Insulating Materials,2007,40(2):48-50,53. |
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| Authors: | CHEN Shao-qing WANG Xia CHENG Xia TU De-min |
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| Abstract: | The composite of nano zinc oxide(ZnO)/low density polyethylene(LDPE) was prepared via the method of double-solution mixture.Space charge distribution and volume resistivity of the samples with different ratio of nano-ZnO were measured with pulsed electro-acoustic method and high resistance meter respectively.The test results show that the space charge in the samples containing nano-ZnO differs distinctly from that in LDPE.When the ratio of nano-ZnO is 0.5% the space charge decaying is the fastest,but when the ratios of nano-ZnO increase the space charge decaying is much slower than that of LDPE.And the volume resistivity is higher than that of LDPE.Influence ofnano-ZnO on the formation of space charge and the electric conduction mechanics in samples is analyzed and discussed. |
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| Keywords: | low density polyethylene nano zinc oxide space charge volume resistivity |
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